Integrated cooker

Abstract

The application discloses an integrated cooker, which comprises a refrigerant circulation system and a water circuit system. The water circuit system comprises a first water circuit and a second water circuit. The refrigerant circulation system comprises a first refrigerant pipe, a compressor, a first heat exchange assembly, a second refrigerant pipe, an evaporator, a second heat exchange assembly and a valve assembly. The input end of the compressor and the first end of the first refrigerant pipe are communicated. The first heat exchange assembly is used for heat exchange with liquid in the first water circuit. The first end of the second refrigerant pipe and the output end of the first heat exchange assembly are communicated. The input end of the evaporator and the second end of the second refrigerant pipe are communicated, and the output end of the evaporator and the second end of the first refrigerant pipe are communicated. The second heat exchange assembly is used for heat exchange with liquid in the second water circuit. The valve assembly is arranged to select at least one of the evaporator and the second heat exchange assembly to be communicated with the second end of the second refrigerant pipe. The integrated cooker provided by the application has multiple functions, such as providing cold air, providing hot water and providing cold water.

Description

Technical Field

[0001] This application relates to the field of air conditioning and heat pump system technology, and in particular to integrated stoves. Background Technology

[0002] With social development and economic progress, integrated cooktops are becoming increasingly popular in homes, leading to a growing demand for their functionality. Currently, most integrated cooktops on the market are kitchen appliances that combine the functions of a range hood, gas stove, disinfection cabinet, storage cabinet, steam oven, and dishwasher, effectively solving problems related to cooking, fume extraction, tableware disinfection, tableware storage, food steaming and baking, and tableware washing.

[0003] Currently, the functions of integrated cooktops are still relatively limited. To improve the cooking experience for users, make life more convenient, and enhance the quality of life, the functions of integrated cooktops still need to be expanded. Utility Model Content

[0004] This application provides an integrated cooktop to increase its functionality, improve the user's cooking experience, and enhance convenience and quality of life.

[0005] To solve the above-mentioned technical problems, the technical solution provided in this application is: an integrated stove, including a refrigerant circulation system and a water system. The water system includes a first water channel and a second water channel. The refrigerant circulation system includes a first refrigerant pipe, a compressor, a first heat exchange component, a second refrigerant pipe, an evaporator, a second heat exchange component, and a valve assembly. The input end of the compressor is connected to the first end of the first refrigerant pipe. The input end of the first heat exchange component is connected to the output end of the compressor, and the first heat exchange component is used to exchange heat with the liquid in the first water channel. The first end of the second refrigerant pipe is connected to the output end of the first heat exchange component. The input end of the evaporator is connected to the second end of the second refrigerant pipe, and the output end of the evaporator is connected to the second end of the first refrigerant pipe. The input end of the second heat exchange component is connected to the second end of the second refrigerant pipe, and the output end of the second heat exchange component is connected to the second end of the first refrigerant pipe, and the second heat exchange component is used to exchange heat with the liquid in the second water channel. The valve assembly is configured to selectively connect at least one of the evaporator and the second heat exchange component to the second end of the second refrigerant pipe.

[0006] The beneficial effects of this application are as follows: The integrated stove provided by this application includes a refrigerant circulation system and a water system. The water system includes a first water line and a second water line. The refrigerant circulation system includes a first refrigerant pipe, a compressor, a first heat exchange component, a second refrigerant pipe, an evaporator, a second heat exchange component, and a valve assembly. The compressor is used to compress the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure state. Since the first heat exchange component is arranged on the output side of the compressor, and the evaporator and the second heat exchange component are arranged on the input side of the compressor, the first heat exchange component is used to exchange heat with the liquid in the first water line, which can heat the liquid in the first water line, thereby enabling the integrated stove to provide hot water. The second heat exchange component is used to exchange heat with the liquid in the second water line, which can cool the liquid in the second water line, thereby enabling the integrated stove to provide cold water. The evaporator can cool the ambient air, thereby enabling the integrated stove to provide cold air. The integrated stove provided by this application has multiple functions, including providing cold air, providing hot water, and providing cold water. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0008] Figure 1 This is a schematic diagram of the system architecture of the integrated stove provided in this application;

[0009] Figure 2 This is a system structure diagram of the integrated stove provided in this application in its first operating mode;

[0010] Figure 3 This is a system structure diagram of the integrated stove provided in this application in its second operating mode;

[0011] Figure 4 This is a system structure diagram of the integrated stove provided in this application in the third operating mode;

[0012] Figure 5 This is a system structure diagram of the integrated stove provided in this application in the fourth operating mode;

[0013] Figure 6 This is a system structure diagram of the integrated stove provided in this application in its fifth operating mode;

[0014] Figure 7 This is a system structure diagram of the integrated stove provided in this application in its sixth operating mode;

[0015] Figure 8This is a system structure diagram of the integrated stove provided in this application in its seventh operating mode;

[0016] Figure 9 This is a system structure diagram of the integrated stove provided in this application in the eighth operating mode;

[0017] Figure 10 This is a system structure diagram of the integrated stove provided in this application in the ninth operating mode;

[0018] Figure 11 This is a system structure diagram of the integrated stove provided in this application in the tenth operating mode;

[0019] Figure 12 This is a system structure diagram of the integrated stove provided in this application in the eleventh operating mode;

[0020] Figure 13 This is a system structure diagram of the integrated stove provided in this application in its twelfth operating mode;

[0021] Figure 14 This is a system structure diagram of the integrated stove provided in this application under the thirteenth operating mode;

[0022] Figure 15 This is a system structure diagram of the integrated stove provided in this application under the fourteenth operating mode;

[0023] Figure 16 This is a system structure diagram of the integrated stove provided in this application under the fifteenth operating mode;

[0024] Figure 17 This is a system structure diagram of the integrated stove provided in this application under the sixteenth operating mode;

[0025] Figure 18 This is a system structure diagram of the integrated stove provided in this application under the seventeenth operating mode;

[0026] Figure 19 This is a system structure diagram of the integrated stove provided in this application under the eighteenth operating mode;

[0027] Figure 20 This is a system structure diagram of the integrated stove provided in this application in its nineteenth operating mode.

[0028] Explanation of reference numerals in the attached figures:

[0029] Refrigerant cycle system 100

[0030] Waterway system 200

[0031] First Waterway 210

[0032] Second Waterway 220

[0033] Compressor 1

[0034] Refrigerant pipe 2

[0035] First refrigerant pipe 2A

[0036] Second refrigerant pipe 2B

[0037] Second hot water heat exchanger 3

[0038] First hot water heat exchanger 4

[0039] Regenerator 5

[0040] Third expansion valve 6

[0041] Gas heat exchanger 7

[0042] Cooling fan 8

[0043] First expansion valve 9

[0044] Evaporator 10

[0045] Evaporator fan 11

[0046] Second expansion valve 12

[0047] Second cold water heat exchanger 13

[0048] First cold water heat exchanger 14

[0049] Storage tank 15

[0050] Water pipe 16

[0051] Pre-filter 17

[0052] Hot water pump 18

[0053] Hot water tank 19

[0054] Drinking water filter 20

[0055] Cold water pump 21

[0056] Cold water tank 22

[0057] Drinking cold water filter 23

[0058] Second cold water outlet 24

[0059] Second hot water outlet 25

[0060] First cold water outlet 26

[0061] First hot water outlet 27

[0062] Filtered tap water outlet 28

[0063] Hot water three-way valve 29

[0064] 30 tap water inlet

[0065] Cold water three-way valve 31

[0066] Sparkling water machine 32

[0067] Air filter 33

[0068] Sparkling water outlet 34

[0069] First heat exchange component 35

[0070] Second heat exchange component 36

[0071] Valve assembly 37 Detailed Implementation

[0072] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0074] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0075] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0076] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two).

[0077] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0078] Currently, most integrated stove products on the market are kitchen appliances that combine the functions of range hood, gas stove, disinfection cabinet, storage cabinet, steam oven and dishwasher, effectively solving problems such as cooking, fume extraction, tableware disinfection, tableware storage, food steaming and baking and tableware cleaning.

[0079] Currently, the functions of integrated cooktops are still relatively limited. To improve the cooking experience for users, make life more convenient, and enhance the quality of life, the functions of integrated cooktops still need to be expanded.

[0080] This application provides an integrated stove that can provide cold air to the operator and cold and hot water to the user during the cooking process through refrigerant circulation, thereby increasing the functionality of the integrated stove.

[0081] The refrigerant (also known as a cooling medium) involved in this application can be R744, a common industrial refrigerant also known as carbon dioxide (CO2). It is a colorless, odorless, and non-toxic gas that is gaseous at room temperature and requires low temperature and high pressure conditions to liquefy. R744 is widely used in commercial and residential refrigeration and air conditioning systems, as well as heat pump water heaters. The refrigerant involved in this application can also be phase change refrigerants such as R410A, R22, and R134a.

[0082] The hot water referred to in this application is water with a temperature higher than room temperature. Specifically, it can refer to water with a temperature higher than a first preset value, which is usually water with a temperature higher than tap water, for example, its temperature can be higher than 30°C. When hot water is used as domestic hot water, its temperature can be 30°C or even 40°C. When hot water is used as drinking hot water, its temperature is usually higher than that of domestic hot water, for example, it can be 80°C, 95°C, or even reach a boiling state of 100°C.

[0083] The cold water referred to in this application refers to water with a temperature lower than room temperature. Specifically, it can refer to water with a temperature lower than a second preset value, typically meaning water with a temperature lower than tap water, such as below 12°C or even below 10°C. When cold water is used as domestic cold water, its temperature can be 12°C or 10°C. When cold water is used as drinking cold water, its temperature is usually lower than that of domestic cold water, such as 8°C, 5°C, or even 0°C.

[0084] The ambient temperature water referred to in this application is tap water that has not been heated or cooled, and its temperature is affected by the water source and the season.

[0085] Please see Figure 1 , Figure 1 This is a schematic diagram of the system architecture of the integrated stove provided in this application. The integrated stove includes a refrigerant circulation system 100 and a water system 200. The water system 200 includes a first water channel 210 and a second water channel 220. The refrigerant circulation system 100 includes a first refrigerant pipe 2A, a compressor 1, a first heat exchange component 35, a second refrigerant pipe 2B, an evaporator 10, a second heat exchange component 36, and a valve component 37. The input end of compressor 1 is connected to the first end of the first refrigerant pipe 2A; the input end of the first heat exchange assembly 35 is connected to the output end of compressor 1, and the first heat exchange assembly 35 is used to exchange heat with the liquid in the first water circuit 210; the first end of the second refrigerant pipe 2B is connected to the output end of the first heat exchange assembly 35; the input end of evaporator 10 is connected to the second end of the second refrigerant pipe 2B, and the output end of evaporator 10 is connected to the second end of the first refrigerant pipe 2A; the input end of the second heat exchange assembly 36 is connected to the second end of the second refrigerant pipe 2B, and the output end of the second heat exchange assembly 36 is connected to the second end of the first refrigerant pipe 2A, and the second heat exchange assembly 36 is used to exchange heat with the liquid in the second water circuit 220; the valve assembly 37 is configured to select at least one of the evaporator 10 and the second heat exchange assembly 36 to be connected to the second end of the second refrigerant pipe 2B.

[0086] The integrated stove provided in this application embodiment includes a refrigerant circulation system 100 for refrigerant circulation and a water system 200 for the circulation of liquids such as water. Typically, the integrated stove also includes a stove body (not shown in the figure), and both the refrigerant circulation system 100 and the water system 200 are at least partially installed within the stove body. In some embodiments, both the refrigerant circulation system 100 and the water system 200 are entirely located within the stove body. In other embodiments, the outlets of each water source in the water system 200 (described below) are located outside the stove body for convenient water access.

[0087] When the refrigerant circulates within the refrigerant circulation system 100, changes in the temperature, pressure, and form of the refrigerant enable the integrated stove to provide functions such as cold air, hot water, and cold water. Specifically, the refrigerant circulation system 100 includes a first refrigerant pipe 2A, a compressor 1, a first heat exchange assembly 35, a second refrigerant pipe 2B, an evaporator 10, a second heat exchange assembly 36, and a valve assembly 37.

[0088] The compressor 1 is used to draw in low-temperature, low-pressure gaseous refrigerant and compress it into high-temperature, high-pressure gaseous refrigerant. The main function of the compressor 1 is to increase the pressure of the low-pressure refrigerant to drive the refrigerant circulation and continuously provide circulation power for the refrigerant circulation system 100. The cooling capacity of the compressor 1 ranges from a few kW to several thousand kW, and from small to large, rotary compressors, scroll compressors, piston compressors, screw compressors, or centrifugal compressors can be selected in sequence.

[0089] The first heat exchange component 35 is used to exchange heat with liquids such as water in the first water channel 210, thereby heating the water in the first water channel 210 and providing hot water function for the integrated stove. Generally, the first heat exchange component 35 has a refrigerant side for refrigerant flow and a water side for water flow. The two ends of the refrigerant side are the input end and the output end, respectively, and the two ends of the water side are the inlet end and the outlet end, respectively. The refrigerant enters the refrigerant side from the input end of the first heat exchange component 35 and flows out from the output end of the first heat exchange component 35. When water flows through the first water passage 210, the refrigerant flowing through the refrigerant side of the first heat exchange component 35 exchanges heat with the water flowing through the water side of the first heat exchange component 35. Since the input end of the first heat exchange component 35 is connected to the output end of the compressor 1, the refrigerant entering the input end of the first heat exchange component 35 is a high-temperature and high-pressure gaseous state, which can heat the water in the first water passage 210. When no water flows through the first water passage 210, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 1 does not exchange heat when it flows through the refrigerant side of the first heat exchange component 35. The refrigerant side of the first heat exchange component 35 is only used as a pipe for refrigerant flow.

[0090] The first heat exchange component 35 can be a single heat exchanger or multiple heat exchangers to achieve a single hot water function (e.g., a single domestic hot water function or a single drinking hot water function) or multiple hot water functions (e.g., it can provide domestic hot water function or drinking hot water function).

[0091] Generally, before entering the evaporator 10, the refrigerant needs to be throttled by a throttling device such as an expansion valve. After passing through the expansion valve, the refrigerant becomes a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure gas-liquid mixture enters the evaporator 10. Through heat exchange between the evaporator 10 and the ambient air (i.e., the evaporation effect of the evaporator 10), the integrated stove can provide cold air. The low-temperature, low-pressure gas-liquid mixture then enters the second heat exchange component 36. Through heat exchange between the second heat exchange component 36 and the second water circuit 220, the water in the second water circuit 220 is cooled, enabling the integrated stove to provide cold water. For details on the structure and principle of the expansion valve, please refer to the relevant description below.

[0092] The evaporator 10, as the core component for producing and outputting cold air, is essentially a heat exchanger. Low-temperature, low-pressure gas-liquid mixture of refrigerant enters the evaporator 10, where it absorbs heat from the surrounding medium (such as ambient air) and evaporates into a gaseous refrigerant. This effectively cools the ambient air, thus providing cold air. The evaporator 10 can be a finned-tube heat exchanger to cool indoor ambient air, acting as an indoor air conditioner to provide cold air for the operator of the integrated stove.

[0093] Generally, the second heat exchange component 36 has a refrigerant side for refrigerant flow and a water side for water flow. The two ends of the refrigerant side are the input end and the output end, respectively, and the two ends of the water side are the inlet end and the outlet end, respectively. The refrigerant enters the refrigerant side from the input end of the second heat exchange component 36 and flows out from the output end of the second heat exchange component 36. When water flows through the second water passage 220, the refrigerant flowing through the refrigerant side of the second heat exchange component 36 exchanges heat with the water flowing through the water side of the second heat exchange component 36. Since the refrigerant entering the input end of the second heat exchange component 36 is a low-temperature, low-pressure gas-liquid mixture, it can cool the water in the second water passage 220. When no water flows through the second water passage 220, the low-temperature, low-pressure gas-liquid mixture of refrigerant does not exchange heat when it flows through the refrigerant side of the second heat exchange component 36. The refrigerant side of the second heat exchange component 36 is only used as a pipe for refrigerant flow.

[0094] The second heat exchange component 36 can be a single heat exchanger or multiple heat exchangers to achieve a single cold water function (e.g., a single domestic cold water function or a single drinking cold water function) or multiple cold water functions (e.g., it can provide domestic cold water function or drinking cold water function).

[0095] In this application, the input end of the evaporator 10 is connected to the second end of the second refrigerant pipe 2B, the output end of the evaporator 10 is connected to the second end of the first refrigerant pipe 2A, the input end of the second heat exchange component 36 is connected to the second end of the second refrigerant pipe 2B, and the output end of the second heat exchange component 36 is connected to the second end of the first refrigerant pipe 2A. That is, the evaporator 10 and the second heat exchange component 36 are connected in parallel between the second end of the first refrigerant pipe 2A and the second end of the second refrigerant pipe 2B.

[0096] The valve assembly 37 is used to connect at least one of the evaporator 10 and the second heat exchange assembly 36 to the second end of the second refrigerant pipe 2B. This means that by opening and closing the valve assembly 37, the evaporator 10 can be connected to the second end of the second refrigerant pipe 2B, the second heat exchange assembly 36 can be connected to the second end of the second refrigerant pipe 2B, or both the evaporator 10 and the second heat exchange assembly 36 can be connected to the second end of the second refrigerant pipe 2B. Thus, the integrated stove can provide cold air alone, cold water alone, or both simultaneously. As an example, the valve assembly 37 can be a combination of multiple expansion valves, thereby achieving a throttling effect on the refrigerant, causing the refrigerant passing through the valve assembly 37 to become a low-temperature, low-pressure gas-liquid mixture.

[0097] The first refrigerant pipe 2A is the refrigerant flow pipeline between the output end of the evaporator 10 / the output end of the second heat exchange assembly 36 and the input end of the compressor 1. For example, it could be... Figure 1 The refrigerant flow piping between point A and point B. Figure 1 Point B is the first end of the first refrigerant pipe 2A. Figure 1 Point A in the middle is the second end of the first refrigerant pipe 2A.

[0098] The second refrigerant pipe 2B is the refrigerant flow pipeline between the output end of the first heat exchange assembly 35 and the input end of the evaporator 10 / the input end of the second heat exchange assembly 36. For example, it can be... Figure 1 The refrigerant flow piping between points C and D. Figure 1 Point C is the first end of the first refrigerant pipe 2A. Figure 1 Point D is the second end of the first refrigerant pipe 2A.

[0099] It should be noted that the first refrigerant pipe 2A and the second refrigerant pipe 2B mentioned in this application refer not to a single pipe used for refrigerant flow, but to a collection of pipes for refrigerant flow.

[0100] Figure 1The bold black lines in the middle represent refrigerant pipe 2. The compressor 1, the first heat exchange assembly 35, the evaporator 10, the second heat exchange assembly 36, the valve assembly 37, and the refrigerant pipe 2 used to connect these components constitute a refrigerant circulation loop, in which the refrigerant circulates.

[0101] As can be seen, the integrated stove provided in this application includes a refrigerant circulation system 100 and a water system 200. The water system 200 includes a first water path 210 and a second water path 220. The refrigerant circulation system 100 includes a first refrigerant pipe 2A, a compressor 1, a first heat exchange component 35, a second refrigerant pipe 2B, an evaporator 10, a second heat exchange component 36, and a valve assembly 37. The compressor 1 is used to compress the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure state. Since the first heat exchange component 35 is arranged on the output side of the compressor 1, and the evaporator 10 and the second heat exchange component 36 are arranged on the input side of the compressor 1, the first heat exchange component 35 is used to exchange heat with the liquid in the first water path 210, which can heat the liquid in the first water path 210, thereby enabling the integrated stove to provide hot water. The second heat exchange component 36 is used to exchange heat with the liquid in the second water path 220, which can cool the liquid in the second water path 220, thereby enabling the integrated stove to provide cold water. The evaporator 10 can cool the ambient air, thereby enabling the integrated stove to provide cold air. The integrated stove provided in this application has multiple functions, including providing air conditioning, hot water, and cold water.

[0102] In some embodiments, valve assembly 37 includes a first expansion valve 9 and a second expansion valve 12; the first end of the first expansion valve 9 is connected to the second end of the second refrigerant pipe 2B, and the second end of the first expansion valve 9 is connected to the input end of the evaporator 10; the first end of the second expansion valve 12 is connected to the second end of the second refrigerant pipe 2B, and the second end of the second expansion valve 12 is connected to the input end of the second heat exchange assembly 36.

[0103] As a throttling element that regulates refrigerant flow, the expansion valve can quickly and accurately adjust its opening and closing according to temperature changes, thereby controlling the refrigerant flow and achieving rapid response.

[0104] The expansion valve has three operating states: closed, fully open, and throttling. When closed, refrigerant cannot pass through the expansion valve; when fully open, it acts as a pipeline, and refrigerant passes directly through the expansion valve; when throttling, the expansion valve reduces pressure by throttling, changing the medium-temperature, high-pressure gaseous refrigerant into a low-temperature, low-pressure gas-liquid mixture.

[0105] When the expansion valve is in a throttling state, the medium-temperature, high-pressure gaseous refrigerant passing through the expansion valve becomes a low-temperature, low-pressure gas-liquid mixture refrigerant, thereby ensuring that it can be smoothly vaporized and absorb heat in the evaporator 10 (i.e., evaporation heat absorption), thus achieving the cooling of the external medium (air). The low-temperature, low-pressure gas-liquid mixture refrigerant absorbs the heat of the air after passing through the evaporator 10, becoming a low-temperature, low-pressure gaseous refrigerant; and ensures that it can smoothly absorb the heat of the water in the second water passage 220 in the second heat exchange component 36, thereby cooling the water in the second water passage 220 and achieving the function of providing cold water. The low-temperature, low-pressure gas-liquid mixture refrigerant absorbs the heat of the water in the second water passage 220 after passing through the second heat exchange component 36, becoming a low-temperature, low-pressure gaseous refrigerant.

[0106] The expansion valve is a pressure switching valve corresponding to compressor 1. Compressor 1 compresses and increases the pressure of refrigerant to drive the cycle, while the expansion valve throttles and reduces the pressure of refrigerant to maintain the cycle.

[0107] The expansion valve uses a sudden change in the cross-section of its narrow orifice-shaped flow channel to throttle the refrigerant from high pressure to low pressure. Simultaneously, the expansion valve can automatically adjust the size of the narrow orifice according to changes in external load, thereby regulating the refrigerant flow rate to adapt to variations in the external load.

[0108] The expansion valve can be an electronic expansion valve or a thermostatic expansion valve.

[0109] An electronic expansion valve is an intelligent technology that uses sensors to detect refrigeration system parameters and, under the regulation of a controller, operates electronically to control the cooling capacity. It can accurately regulate the system's cooling capacity online, ensuring thermal balance and stable operation.

[0110] A thermostatic expansion valve is a type of mechanical expansion valve. It controls the expansion ratio by measuring the temperature difference between the refrigerant and a sensor, thereby regulating the cooling capacity. Thermostatic expansion valves are small in size, lightweight, and simple in structure.

[0111] Electronic expansion valves have the advantages of stable start-up, high adjustment accuracy, and sensitive response, and can still ensure system stability under low load. Thermostatic expansion valves self-regulate based on the thermostatic properties of the refrigerant. In comparison, electronic expansion valves have higher control accuracy and better adjustment performance, but thermostatic expansion valves are less expensive.

[0112] In this embodiment, the expansion valve is preferably an electronic expansion valve with higher control precision and better regulation performance. In other embodiments, the expansion valve can also be replaced with a lower-cost throttling device such as a capillary tube.

[0113] In some embodiments, the valve assembly 37 further includes a third expansion valve 6, which is disposed on the second refrigerant pipe 2B. The first end of the third expansion valve 6 is connected to the output end of the first heat exchange assembly 35, and the input end of the evaporator 10 and the input end of the second heat exchange assembly are respectively connected to the second end of the third expansion valve 6.

[0114] The purpose of setting the third expansion valve 6 is that when only the refrigerant in the first heat exchange component 35 exchanges heat, while the refrigerant in the evaporator 10 and the refrigerant in the second heat exchange component 36 do not exchange heat, that is, when the integrated stove does not provide cold air or cold water, but only hot water, neither the first expansion valve 9 nor the second expansion valve 12 throttles the refrigerant. In this case, after the refrigerant heats the water in the first water passage 210 and / or the second water passage 220 through the first heat exchange component 35, the refrigerant flowing out from the output end of the first heat exchange component 35 is still in a medium-temperature and high-pressure state and cannot directly return to the input end of the compressor 1 to enter the next cycle. Therefore, the third expansion valve 6 is set to throttle the refrigerant flowing out from the output end of the first heat exchange component 35, so that the medium-temperature and high-pressure gaseous refrigerant flowing out from the output end of the first heat exchange component 35 becomes a low-temperature and low-pressure gas-liquid mixture, thereby being able to return to the input end of the compressor 1 to enter the next cycle.

[0115] In this application, the first expansion valve 9, the second expansion valve 12, and the third expansion valve 6 may be of the same type or different types. Preferably, the first expansion valve 9, the second expansion valve 12, and the third expansion valve 6 are all electronic expansion valves, so as to more accurately control the efficient and stable operation of the entire refrigerant circulation system 100.

[0116] In some embodiments, the integrated stove further includes a gas heat exchanger 7, which is arranged in the second refrigerant pipe 2B. The input end of the gas heat exchanger 7 is connected to the second end of the third expansion valve 6, and the input end of the evaporator 10 and the input end of the second heat exchange assembly 36 are respectively connected to the output end of the gas heat exchanger 7.

[0117] The gas heat exchanger 7 is a type of heat exchanger that functions as a gas cooler (also known as a condenser) or evaporator. Specifically, when the system only provides cooling air and / or chilled water (hereinafter referred to as refrigeration function) and not hot water function, the gas heat exchanger 7 acts as a condenser to cool the gaseous refrigerant at a higher temperature; when the system only provides hot water function (hereinafter referred to as heating function) and not cooling air and chilled water function, the gas heat exchanger 7 acts as an evaporator.

[0118] When the system only provides refrigeration function (at least one of air conditioning and water cooling function), the gas heat exchanger 7 acts as a condenser to cool the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 1, so that the high-temperature and high-pressure gaseous refrigerant becomes a medium-temperature and high-pressure gaseous refrigerant. This facilitates the throttling, pressure reduction, and temperature reduction of the medium-temperature and high-pressure gaseous refrigerant at the first expansion valve 9 and the second expansion valve 12, thereby achieving the effects of producing air conditioning and providing water cooling.

[0119] When the system only provides heating function (hot water function), the gas heat exchanger 7 acts as an evaporator, allowing the low-temperature, low-pressure gas-liquid mixture of refrigerant flowing out from the third expansion valve 6 in a throttling state to enter the gas heat exchanger 7 and become a low-temperature, low-pressure gaseous refrigerant after evaporation and heat absorption. This ensures that the refrigerant returning to the compressor 1 is a low-temperature, low-pressure gaseous state, so that the refrigerant can start the next cycle.

[0120] When the system provides both cooling and heating functions, the refrigerant does not exchange heat with the external medium (such as ambient air) after entering the gas heat exchanger 7, but is only used as a channel for refrigerant flow.

[0121] In some embodiments, the integrated stove further includes a regenerator 5, the output end of the gas heat exchanger 7 is connected to the inlet of the high-pressure side of the regenerator 5, the input end of the evaporator 10 and the input end of the second heat exchange component 36 are respectively connected to the outlet of the high-pressure side of the regenerator 5, the input end of the compressor 1 is connected to the outlet of the low-pressure side of the regenerator 5, and the output end of the evaporator 10 and the output end of the second heat exchange component 36 are respectively connected to the outlet of the low-pressure side of the regenerator 5.

[0122] The regenerator 5 can also be called an intermediate heat exchanger or an internal heat exchanger (IHX). The regenerator 5 is a type of plate heat exchanger, or a coaxial heat exchanger. It is divided into two sides, one side being the high-pressure side and the other side being the low-pressure side. The regenerator 5 realizes the heat transfer between the two sides, which lowers the refrigerant temperature on the high-pressure side and raises the refrigerant temperature on the low-pressure side.

[0123] The regenerator 5 can be used to improve cooling performance and reduce the power of the compressor 1. Specifically, the higher-temperature refrigerant flowing into the high-pressure side of the regenerator 5 can exchange heat with the lower-temperature refrigerant flowing out of the evaporator 10 / second heat exchange assembly 36 and into the low-pressure side of the regenerator 5. This reduces the temperature of the refrigerant entering the evaporator 10 / second heat exchange assembly 36, thereby improving cooling performance, and increases the temperature of the refrigerant entering the compressor 1, thereby reducing the power of the compressor 1. By using the regenerator 5, cooling performance can be improved while the power of the compressor 1 is reduced, thus reducing energy consumption.

[0124] In this embodiment, by setting up the regenerator 5, the low-temperature energy of the refrigerant flowing out from the evaporator 10 / second heat exchange component 36 can be effectively utilized, thereby improving the energy utilization rate inside the system and achieving energy saving and high efficiency of the system.

[0125] It is understood that in the system, the regenerator 5 is used to improve the system's cooling performance. The regenerator 5 is not a necessary component. Therefore, in other embodiments, the integrated stove may not include the regenerator 5, and the cooling function of the system will still not be affected.

[0126] In some embodiments, the first heat exchange assembly 35 includes a first hot water heat exchanger 4 and a second hot water heat exchanger 3. The input end of the second hot water heat exchanger 3 is connected to the output end of the compressor 1, the output end of the second hot water heat exchanger 3 is connected to the input end of the first hot water heat exchanger 4, and the output end of the first hot water heat exchanger 4 is connected to the first end of the third expansion valve 6.

[0127] The first water circuit 210 includes a hot water tank 19, a hot water pump 18, and a hot water three-way valve 29. The hot water tank 19 is provided with a first hot water outlet 27. The outlet of the hot water tank 19 is connected to the inlet of the first hot water heat exchanger 4 through the hot water pump 18. The first hot water opening of the hot water three-way valve 29 is connected to the outlet of the first hot water heat exchanger 4. The second hot water opening of the hot water three-way valve 29 is connected to the inlet of the hot water tank 19. The third hot water opening of the hot water three-way valve 29 is connected to the inlet of the second hot water heat exchanger 3. The outlet of the second hot water heat exchanger 3 is connected to a second hot water outlet 25.

[0128] In this embodiment, the hot water three-way valve 29 has three openings. The first hot water opening of the hot water three-way valve 29 is the opening used to connect to the outlet of the first hot water heat exchanger 4. The second hot water opening of the hot water three-way valve 29 is the opening used to connect to the inlet of the hot water tank 19. The third hot water opening of the hot water three-way valve 29 is the opening used to connect to the inlet of the second hot water heat exchanger 3. The first hot water opening is the inlet, and the second and third hot water openings are the outlets, allowing water to flow out from either the second or third hot water opening.

[0129] Both the first hot water heat exchanger 4 and the second hot water heat exchanger 3 have a refrigerant side for refrigerant to flow through and a water side for water to flow through. One end of the refrigerant side is the input end and the other end is the output end, and one end of the water side is the inlet end and the other end is the outlet end. When water flows through the water side, the high-temperature refrigerant flowing through the refrigerant side can exchange heat with the water flowing through the water side, thereby heating the water in the water side of the first hot water heat exchanger 4 / second hot water heat exchanger 3.

[0130] The outlet end of the hot water tank 19 involved in this application refers to the end of the hot water tank 19 used to connect to the hot water pump 18, and the inlet end of the hot water tank 19 refers to the end used to connect to the outlet end of the first hot water heat exchanger 4. The water in the hot water tank 19 flows from the outlet end of the hot water tank 19 into the inlet end of the first hot water heat exchanger 4 through the action of the hot water pump 18, and exchanges heat with the high-temperature refrigerant in the refrigerant side of the first hot water heat exchanger 4. The water flowing out from the outlet end of the first hot water heat exchanger 4 flows into the first hot water opening of the hot water three-way valve 29 and then flows out from the second hot water opening of the hot water three-way valve 29, and returns to the hot water tank 19 through the inlet end of the hot water tank 19, so as to store the heated water in the hot water tank 19.

[0131] In addition, a first hot water outlet 27 is provided on the hot water tank 19 to facilitate the use of the hot water stored in the hot water tank 19. The hot water flowing out from the first hot water outlet 27 can be used for domestic hot water, such as washing hands, washing tableware and fruits and vegetables. Since the amount of water required for domestic hot water is usually large, the hot water tank 19 can store a large amount of hot water for domestic use.

[0132] The hot water flowing out from the outlet of the first hot water heat exchanger 4 can also flow into the first hot water opening of the hot water three-way valve 29 and then out from the third hot water opening of the hot water three-way valve 29. It then flows into the water side of the second hot water heat exchanger 3 from the inlet to exchange heat with the refrigerant at a higher temperature in the refrigerant side of the second hot water heat exchanger 3, thereby obtaining hot water with a higher temperature than the hot water in the hot water tank 19. After the hot water in the water side of the second hot water heat exchanger 3 flows out from the outlet of the second hot water heat exchanger 3, it can flow out from the second hot water outlet 25 for use.

[0133] The hot water flowing out from the second hot water outlet 25 can be used as drinking water. The drinking water is obtained by reheating the hot water in the hot water tank 19 after passing through the second hot water heat exchanger 3. Therefore, the temperature of the hot water flowing out from the second hot water outlet 25 is higher than that of the hot water flowing out from the first hot water outlet 27, making it more suitable for drinking. It is precisely because the temperature of drinking water needs to be higher than that of domestic hot water that drinking water is obtained by reheating the domestic hot water in the hot water tank 19, rather than storing the hot water at a higher temperature suitable for drinking in the same hot water tank as domestic hot water. This takes into account that the demand for drinking water is usually lower than the demand for domestic hot water, so that drinking water can be obtained on demand, reducing energy waste.

[0134] Furthermore, the input end of the second hot water heat exchanger 3 is connected to the output end of the compressor 1, and the output end of the second hot water heat exchanger 3 is connected to the input end of the first hot water heat exchanger 4. That is, the second hot water heat exchanger 3 is located upstream of the first hot water heat exchanger 4. The second hot water heat exchanger 3 is closer to the output end of the compressor 1 than the first hot water heat exchanger 4. The refrigerant flowing out from the output end of the compressor 1 is a high-temperature, high-pressure gaseous refrigerant. The hot water in the hot water tank 19 exchanges heat with the high-temperature gaseous refrigerant flowing through the second hot water heat exchanger 3, which makes it easier for the hot water to be reheated to a higher temperature, making it more suitable for drinking. Of course, in other embodiments of this application, it is also possible that the output end of the first hot water heat exchanger 4 is connected to the input end of the second hot water heat exchanger 3, that is, the second hot water heat exchanger 3 is located downstream of the first hot water heat exchanger 4.

[0135] In some embodiments, a drinking hot water filter 20 is also arranged between the third hot water opening of the hot water three-way valve 29 and the water inlet end of the second hot water heat exchanger 3. In this way, the hot water flowing out from the third hot water opening of the hot water three-way valve 29 can enter the drinking hot water filter 20 for filtration to remove impurities from the hot water and make it more suitable for drinking.

[0136] In addition, the hot water tank 19 is connected to an external tap water inlet 30 to replenish the hot water tank 19. The tap water inlet 30 is also connected to a filtered tap water outlet 28 for users to directly access tap water. The tap water flowing out of the tap water inlet 30 can either enter the hot water tank 19 to replenish the water in the hot water tank 19, or it can flow out from the filtered tap water outlet 28 for direct access to tap water.

[0137] In some embodiments, the second heat exchange assembly 36 includes a first cold water heat exchanger 14 and a second cold water heat exchanger 13. The input end of the second cold water heat exchanger 13 is connected to the second end of the second expansion valve 12, the output end of the second cold water heat exchanger 13 is connected to the input end of the first cold water heat exchanger 14, and the output end of the first cold water heat exchanger 14 is connected to the inlet of the low-pressure side of the regenerator 5.

[0138] The second water circuit 220 includes a cold water tank 22, a cold water pump 21, and a cold water three-way valve 31. The cold water tank 22 is provided with a first cold water outlet 26. The outlet of the cold water tank 22 is connected to the inlet of the first cold water heat exchanger 14 through the cold water pump 21. The first cold water opening of the cold water three-way valve 31 is connected to the outlet of the first cold water heat exchanger 14. The second cold water opening of the cold water three-way valve 31 is connected to the inlet of the cold water tank 22. The third cold water opening of the cold water three-way valve 31 is connected to the inlet of the second cold water heat exchanger 13. The outlet of the second cold water heat exchanger 13 is connected to a second cold water outlet 24.

[0139] In this embodiment, the cold water three-way valve 31 has three openings. The first cold water opening of the cold water three-way valve 31 is the opening used to connect to the outlet of the first cold water heat exchanger 14. The second cold water opening of the cold water three-way valve 31 is the opening used to connect to the inlet of the cold water tank 22. The third cold water opening of the cold water three-way valve 31 is the opening used to connect to the inlet of the second cold water heat exchanger 13. The first cold water opening is the inlet, and the second and third cold water openings are the outlets, allowing water to flow out from either the second or third cold water opening.

[0140] Both the first cold water heat exchanger 14 and the second cold water heat exchanger 13 have a refrigerant side for refrigerant to flow through and a water side for water to flow through. One end of the refrigerant side is the input end and the other end is the output end, and one end of the water side is the inlet end and the other end is the outlet end. When water flows through the water side, the high-temperature refrigerant flowing through the refrigerant side can exchange heat with the water flowing through the water side, thereby cooling the water in the water side of the first cold water heat exchanger 14 / second cold water heat exchanger 13.

[0141] The outlet end of the cold water tank 22 involved in this application refers to the end of the cold water tank 22 used to connect to the cold water pump 21, and the inlet end of the cold water tank 22 is the end of the cold water tank 22 used to connect to the outlet end of the first cold water heat exchanger 14. The water in the cold water tank 22 flows from the outlet end of the cold water tank 22 into the inlet end of the first cold water heat exchanger 14 through the action of the cold water pump 21, and exchanges heat with the low-temperature refrigerant on the refrigerant side of the first cold water heat exchanger 14. The water flowing out from the outlet end of the first cold water heat exchanger 14 flows into the first cold water opening of the cold water three-way valve 31 and then flows out from the second cold water opening of the cold water three-way valve 31, and returns to the cold water tank 22 through the inlet end of the cold water tank 22, so as to store the heated water in the cold water tank 22.

[0142] In addition, a first cold water outlet 26 is provided on the cold water tank 22 to facilitate the use of cold water stored in the cold water tank 22. The cold water flowing out from the first cold water outlet 26 can be used as domestic cold water, such as for washing hands, washing tableware and fruits and vegetables. Since the amount of domestic cold water required is usually large, the cold water tank 22 can store a large amount of cold water for domestic use.

[0143] The cold water flowing out from the outlet of the first cold water heat exchanger 14 can also flow into the water from the first cold water opening of the cold water three-way valve 31 and then out from the third cold water opening of the cold water three-way valve 31. It can also flow into the water side of the second cold water heat exchanger 13 from the inlet to exchange heat with the refrigerant at a lower temperature in the refrigerant side of the second cold water heat exchanger 13, thereby obtaining cold water with a lower temperature than the cold water in the cold water tank 22. After the cold water in the water side of the second cold water heat exchanger 13 flows out from the outlet of the second cold water heat exchanger 13, it can flow out from the second cold water outlet 24 for use.

[0144] The cold water flowing out from the second cold water outlet 24 can be used as drinking water. The drinking water is obtained by cooling the cold water in the cold water tank 22 again through the second cold water heat exchanger 13. Therefore, the temperature of the cold water flowing out from the second cold water outlet 24 is higher than that of the cold water flowing out from the first cold water outlet 26, making it more suitable for drinking. Also, because the temperature of drinking water needs to be lower than that of domestic cold water, the drinking water is obtained by cooling the domestic cold water in the cold water tank 22 again, instead of storing the lower-temperature drinking water in the same cold water tank as the domestic cold water. This takes into account that the demand for drinking water is usually lower than that for domestic cold water, so that drinking water can be used immediately, reducing energy waste.

[0145] Furthermore, the input end of the second cold water heat exchanger 13 is connected to the second expansion valve 12, and the output end of the second cold water heat exchanger 13 is connected to the input end of the first cold water heat exchanger 14. That is, the second cold water heat exchanger 13 is located upstream of the first cold water heat exchanger 14. The second cold water heat exchanger 13 is closer to the output end of the second expansion valve 12 than the first cold water heat exchanger 14. The refrigerant flowing out from the output end of the second expansion valve 12 is a low-temperature, low-pressure gas-liquid mixture refrigerant. The cold water flowing out of the cold water tank 22 exchanges heat with the low-temperature gas-liquid mixture refrigerant flowing through the second cold water heat exchanger 13, which makes it easier for the cold water to be cooled down to a lower temperature, making it more suitable for drinking. Of course, in other embodiments of this application, it is also possible that the output end of the first cold water heat exchanger 14 is connected to the input end of the second cold water heat exchanger 13, that is, the second cold water heat exchanger 13 is located downstream of the first cold water heat exchanger 14.

[0146] In some embodiments, a drinking water filter 23 is also arranged between the third cold water opening of the cold water three-way valve 31 and the water inlet end of the second cold water heat exchanger 13. Then, the cold water flowing out from the third cold water opening of the cold water three-way valve 31 can enter the drinking water filter 23 for filtration to remove impurities from the cold water.

[0147] In addition, the cold water tank 22 is also connected to the tap water inlet 30 to replenish the cold water tank 22 with tap water through the tap water inlet 30. That is, the tap water flowing out of the tap water inlet 30 can flow out from the filtered tap water outlet 28 for direct use, or it can flow into the hot water tank 19 to replenish the tap water in the hot water tank 19, or it can flow into the cold water tank 22 to replenish the tap water in the cold water tank 22.

[0148] In some embodiments, the integrated stove also includes a pre-filter 17, which is typically installed after the tap water inlet 30 and before the tap water outlet 28, the hot water tank 19 and the cold water tank 22, for pre-filtering the water flowing out from the tap water inlet 30.

[0149] Specifically, the pre-filter 17 can filter out large particulate impurities such as sediment, rust, suspended solids, and insect eggs from tap water, providing a cleaner water source, improving water quality safety, protecting water-related equipment, and enhancing the water user experience.

[0150] In this embodiment, a pre-filter 17 is provided to pre-filter the tap water before the tap water outlet 28, hot water tank 19 and cold water tank 22, which can effectively reduce the corrosion of these impurities on the various water-contacting components in the integrated stove and protect the equipment from damage.

[0151] It is understood that the pre-filter 17 is not necessary in the integrated stove of this application. In other embodiments, the integrated stove may also not include the pre-filter 17, that is, the tap water before the tap water outlet 28, hot water tank 19 and cold water tank 22 is not pre-filtered.

[0152] In some embodiments, the integrated cooktop has a first side and a second side, wherein the first hot water outlet 27 and the first cold water outlet 26 are both located on the first side of the integrated cooktop, and the second hot water outlet 25 and the second cold water outlet 24 are both located on the second side of the integrated cooktop.

[0153] In this embodiment, the first hot water outlet 27 and the first cold water outlet 26 are located on the same side, that is, the water inlets for domestic hot water and domestic cold water are located on the same side. The second hot water outlet 25 and the second cold water outlet 24 are located on the same side, that is, the water inlets for drinking hot water and drinking cold water are located on the same side. By arranging domestic hot / cold water and drinking hot / cold water on opposite sides of the integrated stove, the arrangement of water inlets with different functions is more reasonable.

[0154] In some embodiments, the integrated stove further includes a cooling fan 8 and an evaporator fan 11. The cooling fan 8 is arranged on one side of the gas heat exchanger 7 and is used to blow indoor ambient air toward the gas heat exchanger 7 to cool the indoor ambient air. The evaporator fan 11 is arranged on one side of the evaporator 10 and is used to blow indoor ambient air toward the evaporator 10 to cool or heat the refrigerant flowing in the evaporator 10.

[0155] The cooling fan 8 can provide sufficient gas to blow onto the surface of the gas heat exchanger 7 to promote heat exchange between the ambient air and the gas heat exchanger 7, thereby improving the heat exchange performance of the gas heat exchanger 7.

[0156] When the cooling fan 8 blows indoor ambient air toward the gas heat exchanger 7, if the temperature of the indoor ambient air is lower than the temperature of the refrigerant flowing in the evaporator 10, the heat of the refrigerant flowing in the evaporator 10 will be transferred to the indoor ambient air blowing toward the gas heat exchanger 7, causing the temperature of the refrigerant flowing in the evaporator 10 to decrease. In this case, the evaporator 10 is used as an evaporator. If the temperature of the indoor ambient air is lower than the temperature of the refrigerant flowing in the evaporator 10, the heat of the indoor ambient air blowing toward the gas heat exchanger 7 will be transferred to the refrigerant flowing in the evaporator 10, causing the temperature of the refrigerant flowing in the evaporator 10 to increase. In this case, the evaporator 10 is used as a condenser.

[0157] The air blown out by the cooling fan 8 can be blown out through the chimney, thereby exhausting the ambient air that has exchanged heat with the gas heat exchanger 7 to the outside of the integrated stove.

[0158] The evaporator fan 11 provides sufficient gas to blow onto the surface of the gas evaporator 10 to promote heat exchange between the ambient air and the evaporator 10, thereby improving the heat exchange performance of the evaporator 10.

[0159] In some embodiments, an air filter 33 is also arranged on the side of the evaporator fan 11 away from the evaporator 10. The air filter 33 is used to filter particulate impurities in the ambient air to reduce particulate impurities in the cold air blown out by the integrated stove.

[0160] In some embodiments, the refrigerant circulation system 100 further includes a liquid receiver 15 for storing liquid refrigerant. The output end of the evaporator 10 and the output end of the second heat exchange assembly 36 are respectively connected to the first end of the liquid receiver 15, and the second end of the liquid receiver 15 is connected to the input end of the low-pressure side of the regenerator 5. After the refrigerant flows through the evaporator 10 and / or the second heat exchange assembly 36, it flows into the liquid receiver 15. A small amount of liquid refrigerant remaining in the liquid receiver 15 is stored in the liquid receiver 15, while the gaseous refrigerant enters the low-pressure side of the regenerator 5 through the liquid receiver 15.

[0161] In some embodiments, the integrated cooktop also includes a bubble water machine 32, and the outlet of the second cold water heat exchanger 13 is selectively connected to the bubble water machine 32 and the second cold water outlet 24.

[0162] In this embodiment, the cold water flowing out of the outlet of the second cold water heat exchanger 13 can flow directly from the second cold water outlet 24 for drinking, or it can enter the sparkling water machine 32. The main function of the sparkling water machine 32 is to pressurize ordinary water and inject carbon dioxide gas to turn it into an aqueous solution with bubbles. This aqueous solution is popular because of its unique taste and health benefits.

[0163] The sparkling water machine 32 can be equipped with a sparkling water outlet 34. Cold water flowing out of the outlet of the second cold water heat exchanger 13 passes through the sparkling water machine 32 to obtain sparkling water, which then flows out from the sparkling water outlet 34 for drinking. The integrated stove in this embodiment can provide different types of drinking water, such as hot water, cold water, and sparkling water, to meet different drinking needs. It is understood that the sparkling water machine 32 is not essential in the integrated stove; in other embodiments, the integrated stove may not include the sparkling water machine 32, i.e., it may not have a sparkling water function.

[0164] It should be noted that in the first water circuit 210, there are water pipes 16 connecting the hot water tank 19 and the hot water pump 18, the hot water pump 18 and the water inlet of the first hot water heat exchanger 4, the water outlet of the first hot water heat exchanger 4 and the first hot water opening of the hot water three-way valve 29, the second hot water opening of the hot water three-way valve 29 and the hot water tank 19, the third hot water opening of the hot water three-way valve 29 and the drinking water filter 20, the drinking water filter 20 and the water inlet of the second hot water heat exchanger 3, and the water outlet of the second hot water heat exchanger 3 and the second hot water outlet 25, so as to realize the flow of tap water between the various components. The various components on the first water circuit 210 and the tap water pipes 16 together constitute the first water circuit 210 for the flow of tap water.

[0165] Similarly, in the second water circuit 220, tap water pipes 16 are connected between the cold water tank 22 and the cold water pump 21, between the cold water pump 21 and the water inlet of the first cold water heat exchanger 14, between the water outlet of the first cold water heat exchanger 14 and the first cold water opening of the cold water three-way valve 31, between the second cold water opening of the cold water three-way valve 31 and the cold water tank 22, between the third cold water opening of the cold water three-way valve 31 and the drinking cold water filter 23, between the drinking cold water filter 23 and the water inlet of the second cold water heat exchanger 13, between the water outlet of the second cold water heat exchanger 13 and the second cold water outlet 24, and between the water outlet of the second cold water heat exchanger 13 and the sparkling water machine 32, so as to realize the flow of tap water between the various components. The various components on the second water circuit 220 and the tap water pipes 16 together constitute the second water circuit 220 for the flow of tap water.

[0166] In addition, tap water pipes 16 are also connected between the tap water inlet 30 and the pre-filter 17, between the pre-filter 17 and the hot water tank 19, and between the pre-filter 17 and the cold water tank 22, so as to replenish the tap water in the hot water tank 19 and the cold water tank 22 through the tap water inlet 30.

[0167] In some embodiments, the integrated cooktop also includes a controller (not shown) for controlling the on / off states of various functions of the integrated cooktop. Specifically, the compressor 1, the first expansion valve 9, the second expansion valve 12, the third expansion valve 6, the hot water pump 18, the hot water three-way valve 29, the cold water pump 21, the cold water three-way valve 31, the cooling fan 8, and the evaporator fan 11 are electrically connected to the controller so that the controller can control the switching of the on / off states / operating states of each component.

[0168] In some embodiments, the integrated cooktop is equipped with a first temperature sensor for detecting the water temperature in the hot water tank 19. When the first temperature sensor detects that the water temperature in the hot water tank 19 is lower than a preset value, the water in the hot water tank 19 is heated. The preset value can be 30°C, 40°C, or 45°C. This preset value is only an example and can be adjusted according to the required hot water temperature.

[0169] In some embodiments, a first temperature sensor is disposed inside the hot water tank 19 and is electrically connected to a controller. The controller is used to activate the control system based on the water temperature detected by the first temperature sensor inside the hot water tank 19. When the first temperature sensor detects that the water temperature inside the hot water tank 19 is lower than a preset value, the controller activates the control system to heat the water inside the hot water tank 19.

[0170] In some embodiments, a second temperature sensor is provided inside the integrated stove to detect the water temperature in the cold water tank 22. When the second temperature sensor detects that the water temperature in the cold water tank 22 is higher than a preset value, the water in the cold water tank 22 is cooled. This preset value can be 8°C, 10°C, or 12°C; this preset value is only an example and can be adjusted according to the required cold water temperature.

[0171] In some embodiments, a second temperature sensor is disposed inside the cold water tank 22 and is electrically connected to a controller. The controller is used to activate the control system based on the water temperature detected by the second temperature sensor inside the cold water tank 22. Specifically, when the second temperature sensor detects that the water temperature inside the cold water tank 22 is higher than a preset value, the controller activates the control system to cool the water inside the cold water tank 22.

[0172] In some embodiments, a first water level sensor is provided inside the hot water tank 19. The first water level sensor is electrically connected to a controller, which controls the tap water inlet 30 to replenish the hot water tank 19 with tap water based on the water level detected by the first water level sensor. Specifically, when the water level in the hot water tank 19 is lower than a set value, the hot water tank 19 automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops.

[0173] In some embodiments, a second water level sensor is provided inside the cold water tank 22. The second water level sensor is electrically connected to the controller, which controls the tap water inlet 30 to replenish the cold water tank 22 with tap water based on the water level detected by the second water level sensor. Specifically, when the water level in the cold water tank 22 is lower than a set value, the cold water tank 22 automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops.

[0174] In some embodiments, solenoid valves may be installed in the first hot water outlet 27, the second hot water outlet 25, the first cold water outlet 26, and the second cold water outlet 24, and the solenoid valves are connected to a controller. When the water in the first hot water outlet 27, the second hot water outlet 25, the first cold water outlet 26, and the second cold water outlet 24 does not reach the preset water temperature, the solenoid valves in the first hot water outlet 27, the second hot water outlet 25, the first cold water outlet 26, and the second cold water outlet 24 are controlled to close; when the water in the first hot water outlet 27, the second hot water outlet 25, the first cold water outlet 26, and the second cold water outlet 24 reaches the preset water temperature, the solenoid valves in the first hot water outlet 27, the second hot water outlet 25, the first cold water outlet 26, and the second cold water outlet 24 are controlled to open. This can prevent the hot water flowing from the first hot water outlet 27 and the second hot water outlet 25 from being too cold, thus affecting the hot water usage / drinking experience; and prevent the cold water flowing from the first cold water outlet 26 and the second cold water outlet 24 from being too cold, thus affecting the cold water usage / drinking experience.

[0175] In summary, the integrated stove provided in this application can provide cold air to the operator during the cooking process, and provide the user with cold and hot water for daily life, as well as hot and cold water that can be directly consumed.

[0176] In other words, the integrated stove of this application has five major functions:

[0177] Primary function: to provide cool air;

[0178] Second function: to store and provide primary hot water (exemplarily, primary hot water is domestic hot water);

[0179] Third function: to provide a second hot water source (exemplarily, the second hot water is drinking hot water);

[0180] Fourth function: to store and provide primary cold water (exemplarily, primary cold water is domestic cold water);

[0181] Fifth function: Provide a second cold water (exemplarily, the second cold water is drinking cold water).

[0182] Therefore, the operating mode of the integrated stove of this application can be obtained by any combination of the above five functions. Generally speaking, the second and third functions can be selected, and the fourth and fifth functions can be selected.

[0183] Specifically, integrated cooktops can have the following operating modes:

[0184] First operating mode: The integrated stove has the first function.

[0185] Second operating mode: The integrated stove has a second function.

[0186] Third operating mode: The integrated stove has a third function.

[0187] Fourth operating mode: The integrated stove has a fourth function.

[0188] Fifth operating mode: The integrated stove has a fifth function.

[0189] Sixth operating mode: The integrated stove has the first and second functions.

[0190] Seventh operating mode: The integrated stove has the first and third functions.

[0191] Eighth operating mode: The integrated stove has the first and fourth functions.

[0192] Ninth operating mode: The integrated stove has the first and fifth functions.

[0193] The tenth operating mode: The integrated stove has the second and fourth functions.

[0194] Eleventh operating mode: The integrated stove has the first, second and fourth functions.

[0195] The twelfth operating mode: The integrated stove has the first, third and fifth functions.

[0196] Thirteenth operating mode: The integrated stove has the third and fifth functions;

[0197] Fourteenth operating mode: The integrated stove has the first, second and fifth functions.

[0198] The fifteenth operating mode: The integrated stove has the second and fifth functions.

[0199] The sixteenth operating mode: The integrated stove has the first, third and fourth functions.

[0200] Seventeenth operating mode: The integrated stove has a third and fourth function.

[0201] Based on this, the integrated stove of this application may also have a sixth function: filtering tap water, and a seventh function: providing drinking sparkling water.

[0202] Based on this, integrated cooktops can also have the following operating modes:

[0203] The eighteenth operating mode: The integrated stove has the sixth function.

[0204] Nineteenth operating mode: The integrated stove has the seventh function.

[0205] The following detailed description of the different operating modes of the integrated stove of this application is provided through specific embodiments.

[0206] Example 1

[0207] In this embodiment, the integrated stove is in the first operating mode, which is used to provide cold air to the user and cool the indoor air. That is, the integrated stove is used as an air conditioner to provide cold air.

[0208] Please see Figure 2 , Figure 2 This is a system structure diagram of the integrated stove provided in this application in its first operating mode. Figure 2 The medium gray line indicates that the area is not in operation.

[0209] In the first operating mode, compressor 1 is on, hot water pump 18 and cold water pump 21 are off, first expansion valve 9 is throttling, second expansion valve 12 is closed, third expansion valve 6 is fully open, and cooling fan 8 and evaporator fan 11 are on.

[0210] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, cooling fan 8 and evaporator fan 11.

[0211] The working principle of an integrated cooktop providing cooling in its first operating mode is as follows:

[0212] The system starts, and compressor 1 begins to work. Low-temperature, low-pressure gaseous refrigerant is drawn into the compressor's input end. This gaseous refrigerant is compressed into high-temperature, high-pressure gaseous refrigerant within the compressor, flowing out from the compressor's output end and sequentially passing through the refrigerant side of the second hot water heat exchanger 3 and the refrigerant side of the first hot water heat exchanger 4. Since the hot water pump 18 is off at this time, no water flows through either the water side of the first hot water heat exchanger 4 or the water side of the second hot water heat exchanger 3. Therefore, both the refrigerant sides of the second hot water heat exchanger 3 and the first hot water heat exchanger 4 are... The refrigerant flowing from the output of the first hot water heat exchanger 4 is still in a high-temperature, high-pressure gaseous state. The refrigerant then reaches the third expansion valve 6, which is fully open and serves only as a refrigerant flow path. The refrigerant flowing from the third expansion valve 6 is still in a high-temperature, high-pressure gaseous state. The refrigerant then reaches the gas heat exchanger 7, where the cooling fan 8 is on. The cooling fan 8 blows indoor ambient air across the gas heat exchanger 7 and exhausts it from the chimney. The indoor ambient air and the high-temperature, high-pressure gaseous refrigerant in the gas heat exchanger 7 exchange... The indoor ambient air absorbs heat from the high-temperature, high-pressure gaseous refrigerant inside the gas heat exchanger 7, causing the temperature of the high-temperature, high-pressure gaseous refrigerant to decrease, becoming a medium-temperature, high-pressure gaseous refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out from the output end of the gas heat exchanger 7 flows into the inlet of the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 to decrease, and the temperature of the low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 to decrease. As the temperature of the low-pressure gaseous refrigerant rises, the gaseous refrigerant flowing out from the high-pressure side outlet of the regenerator 5 remains at a medium temperature and high pressure, while the gaseous refrigerant flowing out from the low-pressure side outlet of the regenerator 5 remains at a low temperature and low pressure. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side outlet of the regenerator 5 flows to the first expansion valve 9 and the second expansion valve 12. At this time, the second expansion valve 12 is in a closed state, and the medium-temperature, high-pressure gaseous refrigerant cannot pass through the second expansion valve 12. The first expansion valve 9 is in a throttling state, and the medium-temperature, high-pressure gaseous refrigerant can pass through the first expansion valve 9.

[0213] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture flows into the evaporator 10 from the inlet end. At this time, the evaporator fan 11 is turned on and works, drawing indoor ambient air into the air filter 33 and filtering out particulate impurities in the air. The indoor ambient air is then blown across the evaporator 10 by the evaporator fan 11, where it exchanges heat with the low-temperature, low-pressure gas-liquid mixture in the evaporator 10. The refrigerant absorbs heat from the air, and the air releases heat, transforming into cold air which is then blown into the room, thus achieving indoor cooling.

[0214] At this time, the low-temperature, low-pressure gas-liquid mixture of refrigerant in the evaporator 10 absorbs heat from the air, its temperature rises, and it becomes a low-temperature, low-pressure gaseous refrigerant, while a small amount of liquid refrigerant remains. The refrigerant then enters the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant then enters the low-pressure side input end of the regenerator 5 through the liquid receiver 15. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat and its temperature rises, remaining a low-pressure, low-temperature gaseous refrigerant. Finally, the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0215] Example 2

[0216] In this embodiment, the integrated stove is in the second operating mode, which is used to store and provide first hot water. For example, the first hot water is domestic hot water, that is, the integrated stove is used as a water heater to provide domestic hot water.

[0217] Please see Figure 3 , Figure 3 This is a system structure diagram of the integrated stove provided in this application in its second operating mode. Figure 3 The medium gray line indicates that the area is not in operation.

[0218] In the second operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is off, the first hot water inlet of hot water three-way valve 29 is connected to the second hot water inlet, the first expansion valve 9 is fully open, the second expansion valve 12 is closed, the third expansion valve 6 is throttling, cooling fan 8 is on, and evaporator fan 11 is off.

[0219] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, hot water three-way valve 29, cold water pump 21, cooling fan 8 and evaporator fan 11.

[0220] The working principle of an integrated cooktop providing domestic hot water in its second operating mode is as follows:

[0221] The system starts working when the water temperature in the hot water tank 19 is lower than the set temperature.

[0222] The system starts, and compressor 1 begins to work. Low-temperature, low-pressure gaseous refrigerant is drawn into the compressor's input end. This gaseous refrigerant is compressed into high-temperature, high-pressure gaseous refrigerant within the compressor and flows out from its output end. The high-temperature, high-pressure gaseous refrigerant flowing out of compressor 1 flows through the refrigerant side of the second hot water heat exchanger 3, then enters the refrigerant side of the first hot water heat exchanger 4 from its input end, and finally flows out from its output end. Simultaneously, the hot water pump 18 is turned on, and the first hot water opening of the hot water three-way valve 29 is connected to the second hot water opening. Water in the hot water tank 19 is pumped by the hot water pump 18... The water is drawn out, passes through the hot water pump 18, and then flows into the water inlet of the first hot water heat exchanger 4. The water flowing through the water side of the first hot water heat exchanger 4 exchanges heat with the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4. This causes the water flowing through the water side of the first hot water heat exchanger 4 to absorb the heat from the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4, thus raising the temperature of the water flowing through the water side of the first hot water heat exchanger 4. The water with the increased temperature then flows out of the water outlet of the first hot water heat exchanger 4 and into the first hot water opening of the hot water three-way valve 29, and then flows out from the second hot water opening of the hot water three-way valve 29, finally flowing into the hot water tank 19.

[0223] Since the water flowing out of the hot water tank 19 does not enter the water side of the second hot water heat exchanger 3, the refrigerant side of the second hot water heat exchanger 3 only serves as a flow pipeline for the refrigerant, and the refrigerant flowing out from the output end of the refrigerant side of the second hot water heat exchanger 3 is still in a high-temperature and high-pressure gaseous state.

[0224] The high-temperature, high-pressure gaseous refrigerant flowing from the refrigerant side of the second hot water heat exchanger 3 flows into the refrigerant side of the first hot water heat exchanger 4. Because the water in the first hot water heat exchanger 4 absorbs heat from the high-temperature, high-pressure gaseous refrigerant in the refrigerant side, the output of the first hot water heat exchanger 4 is now a medium-temperature, high-pressure gaseous refrigerant. This medium-temperature, high-pressure gaseous refrigerant then reaches the third expansion valve 6. At this time, the third expansion valve 6 is in a throttling state, allowing the medium-temperature, high-pressure gaseous refrigerant to pass through. Under the throttling effect of the third expansion valve 6, the medium-temperature, high-pressure gaseous refrigerant... The refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture flowing from the third expansion valve 6 enters the gas heat exchanger 7, where it acts as an evaporator. The cooling fan 8 operates, blowing indoor air through the gas heat exchanger 7 and then exhausting the air from the chimney. The indoor air exchanges heat with the low-temperature, low-pressure gas-liquid mixture in the gas heat exchanger 7. The low-temperature, low-pressure gas-liquid mixture absorbs heat from the indoor air, its temperature rises, and it becomes a low-temperature, low-pressure gaseous refrigerant, while retaining a small amount of liquid refrigerant. The refrigerant flowing from the gas heat exchanger 7... The low-temperature, low-pressure gaseous refrigerant flows back into the inlet of the high-pressure side of the regenerator 5. At this time, the low-temperature, low-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 and the low-pressure side of the regenerator 5 have the same temperature, and no heat exchange occurs. The low-temperature, low-pressure gaseous refrigerant flows out from the outlet of the high-pressure side of the regenerator 5 and flows into the first expansion valve 9 and the second expansion valve 12. At this time, the second expansion valve 12 is closed, and the low-temperature, low-pressure gaseous refrigerant cannot pass through the second expansion valve 12. The first expansion valve 9 is fully open and only acts as a flow channel for the refrigerant. The low-temperature, low-pressure gaseous refrigerant enters through the first expansion valve 9. In evaporator 10, the evaporator fan 11 is not working. The low-temperature, low-pressure gaseous refrigerant flows through evaporator 10 without heat exchange; evaporator 10 merely acts as a refrigerant flow path. The low-temperature, low-pressure gaseous refrigerant flows out of evaporator 10 and then into receiver 15. A small amount of liquid refrigerant is stored in receiver 15. The low-temperature, low-pressure gaseous refrigerant then enters the inlet on the low-pressure side of regenerator 5 through receiver 15. At this point, the low-temperature, low-pressure gaseous refrigerant on the high-pressure side of regenerator 5 and the low-pressure side of regenerator 5 have the same temperature, and no heat exchange occurs. Finally, the low-temperature, low-pressure gaseous refrigerant on the low-pressure side of regenerator 5 is drawn into compressor 1 and enters the next cycle.

[0225] This cycle continues, with the water in the hot water tank 19 being continuously heated. When the set temperature is reached, the system stops working, and the hot water that has reached a certain temperature is stored in the hot water tank 19 for use.

[0226] When hot water is needed, open the first hot water outlet 27, and hot water from the hot water tank 19 will flow out from the first hot water outlet 27 for use.

[0227] When water continuously flows out of the hot water tank 19, and the water level in the hot water tank 19 is lower than the set value, the hot water tank 19 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops.

[0228] When the water temperature in hot water tank 19 is lower than the set temperature, the system starts working again.

[0229] Example 3

[0230] In this embodiment, the integrated stove is in the third operating mode, which is used to provide a second hot water. For example, the second hot water is drinking hot water, that is, the integrated stove is used as a water heater to provide drinking hot water.

[0231] Please see Figure 4 , Figure 4 This is a system structure diagram of the integrated stove provided in this application in the third operating mode. Figure 4 The medium gray line indicates that the area is not in operation.

[0232] In the third operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is off, the first hot water inlet of hot water three-way valve 29 is connected to the third hot water inlet, the first expansion valve 9 is fully open, the second expansion valve 12 is closed, the third expansion valve 6 is throttling, the cooling fan 8 is on, and the evaporator fan 11 is off.

[0233] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, hot water three-way valve 29, cold water pump 21, cooling fan 8 and evaporator fan 11.

[0234] The working principle of the integrated stove providing drinking hot water in the third operating mode is as follows:

[0235] The system starts working when the second hot water outlet 25 is opened.

[0236] When the system starts, compressor 1 begins operation. Low-temperature, low-pressure gaseous refrigerant is drawn into the compressor's input end and compressed into high-temperature, high-pressure gaseous refrigerant, which then flows out from the compressor's output end. This high-temperature, high-pressure gaseous refrigerant flows into the refrigerant side of the second hot water heat exchanger 3. The high-temperature, high-pressure gaseous refrigerant in the second hot water heat exchanger 3 exchanges heat with the water in the second hot water heat exchanger 3, heating the water. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3... The refrigerant releases heat for the first time, and its temperature drops for the first time. The high-temperature, high-pressure gaseous refrigerant, after its temperature drops in the refrigerant side of the second hot water heat exchanger 3, flows back into the refrigerant side of the first hot water heat exchanger 4 and exchanges heat with the water in the water side of the first hot water heat exchanger 4 to heat the water. The refrigerant in the refrigerant side of the first hot water heat exchanger 4 releases heat for the second time, and its temperature drops for the second time. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4 gradually becomes a medium-temperature, high-pressure gaseous refrigerant and flows out from the output end of the refrigerant side of the first hot water heat exchanger 4.

[0237] Meanwhile, the hot water pump 18 operates, drawing hot water stored in the hot water tank 19. The hot water in the tank flows through the pump and then into the water side of the first hot water heat exchanger 4. At this time, the water in the first hot water heat exchanger 4 exchanges heat with the high-temperature, high-pressure gaseous refrigerant on the refrigerant side, absorbing heat from the gaseous refrigerant and raising its temperature. The heated water then flows out from the water side of the first hot water heat exchanger 4 to the first hot water opening of the hot water three-way valve 29, and then out from the third hot water opening. The water flowing out from the third hot water opening of the valve passes through the drinking water filter 20 and then into the water side of the second hot water heat exchanger 3, where it exchanges heat with the high-temperature, high-pressure gaseous refrigerant on the refrigerant side, thus reheating the water to boiling. The water then flows out from the second hot water outlet 25 and is ready for drinking.

[0238] The medium-temperature, high-pressure gaseous refrigerant flowing out from the refrigerant side of the first hot water heat exchanger 4 reaches the third expansion valve 6. At this time, the third expansion valve 6 is in a throttling state, and the refrigerant can pass through the third expansion valve 6. Under the throttling action of the third expansion valve 6, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture refrigerant. The low-temperature, low-pressure gas-liquid mixture refrigerant then enters the gas heat exchanger 7. At this time, the gas heat exchanger 7 acts as an evaporator. The cooling fan 8 works to blow indoor air through the gas heat exchanger 7 and then exhaust the air from the chimney. The indoor air exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant in the gas heat exchanger 7. The low-temperature, low-pressure gas-liquid mixture of refrigerant flowing through the gas heat exchanger 7 absorbs heat from the indoor air, its temperature rises, and it becomes a low-temperature, low-pressure gaseous refrigerant, while a small amount of liquid refrigerant remains. The low-temperature, low-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. At this time, the low-temperature, low-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 and the low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 have the same temperature, and no heat exchange occurs. Low-temperature, low-pressure gaseous refrigerant flows out from the high-pressure side of the regenerator 5 and then into the first expansion valve 9 and the second expansion valve 12. At this time, the second expansion valve 12 is closed, and the refrigerant cannot pass through it. The first expansion valve 9 is fully open and only serves as a refrigerant flow path. The low-temperature, low-pressure gaseous refrigerant enters the evaporator 10 through the second expansion valve 12. At this time, the evaporator fan 11 is not working, and the low-temperature, low-pressure gaseous refrigerant flows through the evaporator 10 without being replaced. In the heat exchange process, the evaporator 10 serves only as a refrigerant flow path. The low-temperature, low-pressure gaseous refrigerant flowing out of the evaporator 10 flows into the liquid receiver 15, where a small amount of liquid refrigerant is stored. The low-temperature, low-pressure gaseous refrigerant then enters the low-pressure side of the regenerator 5 through the liquid receiver 15. At this point, the low-temperature, low-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 and the low-pressure side of the regenerator 5 have the same temperature, and no heat exchange occurs. Finally, the low-temperature, low-pressure gaseous refrigerant on the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0239] When water continuously flows out of the hot water tank 19, and the water level in the hot water tank 19 is lower than the set value, the hot water tank 19 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops.

[0240] When the drinking water temperature flowing out of the second hot water outlet 25 is lower than the set minimum drinking water temperature (e.g., 95°C), that is, when the hot water provided in the hot water tank 19 cannot reach the required water temperature of the second hot water outlet 25 after two heating cycles, that is, when the water temperature in the hot water tank 19 is lower than the set temperature, the second hot water outlet 25 is closed, and the hot water three-way valve 29 is switched to connect the first hot water opening and the second hot water opening to reheat the water in the hot water tank 19 until the water temperature rises to the set temperature.

[0241] Example 4

[0242] In this embodiment, the integrated stove is in the fourth operating mode, which is used to store and provide first cold water. For example, the first cold water is domestic cold water, that is, the integrated stove is used as a cold water heater to provide domestic cold water.

[0243] Please see Figure 5 , Figure 5 This is a system structure diagram of the integrated stove provided in this application in the fourth operating mode. Figure 5 The medium gray line indicates that the area is not in operation.

[0244] In the fourth operating mode, compressor 1 is on, hot water pump 18 is off, cold water pump 21 is on, the first cold water opening of cold water three-way valve 31 is connected to the second cold water opening, the first expansion valve 9 is closed, the second expansion valve 12 is throttling, the third expansion valve 6 is fully open, cooling fan 8 is on, and evaporator fan 11 is off.

[0245] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0246] The working principle of the integrated cooktop providing domestic cold water in the fourth operating mode is as follows:

[0247] The system starts working when the water temperature in the cold water tank 22 is higher than the set temperature.

[0248] The system starts, and compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn into the compressor's input end and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of compressor 1 flows sequentially through the refrigerant side of the second hot water heat exchanger 3 and the refrigerant side of the first hot water heat exchanger 4. Since the hot water pump 18 is off at this time, no water flows through the water side of either the first or second hot water heat exchanger 3. Therefore, the refrigerant side of both the second and first hot water heat exchangers 3 and 4 only serves as refrigerant flow channels. The refrigerant flowing out of the output end of the first hot water heat exchanger 4... The refrigerant remains in a high-temperature, high-pressure gaseous state. It then reaches the third expansion valve 6, which is fully open and acts solely as a flow path for the refrigerant. The high-temperature, high-pressure gaseous refrigerant flows through the third expansion valve 6 into the gas heat exchanger 7, which acts as a gas cooler, condensing the high-temperature, high-pressure refrigerant. Simultaneously, the cooling fan 8 operates, blowing indoor air through the gas heat exchanger 7 and then exhausting the air from the chimney. The indoor air exchanges heat with the high-temperature, high-pressure gaseous refrigerant in the gas heat exchanger 7, absorbing heat and causing the refrigerant temperature to drop, transforming it into a medium-temperature, high-pressure gaseous state. Refrigerant; the medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 flows back into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat from the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant in the low-pressure side to increase. At this time, the refrigerant flowing out from the outlet of the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state; the medium-temperature, high-pressure gaseous refrigerant then flows back into the high-pressure side of the regenerator 5. The refrigerant flows through the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is closed, and the refrigerant cannot pass through the first expansion valve 9. The second expansion valve 12 is in a throttling state, and the refrigerant can pass through the second expansion valve 12. Under the throttling effect of the second expansion valve 12, the medium-temperature and high-pressure gaseous refrigerant is transformed into a low-temperature and low-pressure gas-liquid mixture. The low-temperature and low-pressure gas-liquid mixture enters the refrigerant side input end of the second cold water heat exchanger 13 through the second expansion valve 12, flows through the refrigerant side of the second cold water heat exchanger 13, and then flows out from the refrigerant side output end of the second cold water heat exchanger 13, and then flows into the refrigerant side of the first cold water heat exchanger 14.

[0249] At the same time, the cold water pump 21 is turned on. Under the action of the cold water pump 21, the water in the cold water tank 22 is drawn out, flows through the cold water pump 21, and then flows from the cold water pump 21 into the water side of the first cold water heat exchanger 14. The water flowing into the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant in the refrigerant side of the first cold water heat exchanger 14. The refrigerant absorbs the heat of the water, causing the water temperature to drop. The cooled tap water then flows to the first cold water opening of the cold water three-way valve 31, flows out from the second cold water opening of the cold water three-way valve 31, and then flows into the cold water tank 22.

[0250] The low-temperature, low-pressure gas-liquid mixture of refrigerant flowing through the refrigerant side of the first cold water heat exchanger 14 absorbs heat from the water in the water side of the first cold water heat exchanger 14. The temperature of the low-temperature, low-pressure gas-liquid mixture in the refrigerant side of the first cold water heat exchanger 14 rises, transforming into a low-temperature, low-pressure gaseous refrigerant, possibly with a small amount of liquid refrigerant remaining. The refrigerant flowing out from the output end of the refrigerant side of the first cold water heat exchanger 14 then enters the liquid storage tank 15, containing a small amount of liquid refrigerant. The gaseous refrigerant, stored in the liquid receiver 15, enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat and its temperature rises, but it remains a low-pressure, low-temperature gaseous refrigerant. Finally, the low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0251] This cycle continues, and when the tap water temperature drops to a certain level, it can be stored in the cold water tank 22. When the set cold water temperature is reached, the system stops working.

[0252] When domestic cold water is needed, open the first cold water outlet 26, and cold water in the cold water tank 22 will flow out from the first cold water outlet 26 for use.

[0253] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 is lower than the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops.

[0254] When the water temperature in the cold water tank 22 is higher than the set cold water temperature, the system starts working again.

[0255] Example 5

[0256] In this embodiment, the integrated stove is in the fifth operating mode, which is used to provide a second cold water. For example, the second cold water is drinking cold water, that is, the integrated stove is used as a cold water heater to provide drinking cold water.

[0257] Please see Figure 6 , Figure 6 This is a system structure diagram of the integrated stove provided in this application in its fifth operating mode. Figure 6 The medium gray line indicates that the area is not in operation.

[0258] In the fifth operating mode, compressor 1 is on, hot water pump 18 is off, cold water pump 21 is on, the first cold water opening of cold water three-way valve 31 is connected to the third cold water opening, the first expansion valve 9 is closed, the second expansion valve 12 is throttling, the third expansion valve 6 is fully open, cooling fan 8 is on, and evaporator fan 11 is off.

[0259] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0260] The working principle of the integrated stove providing domestic cold water in the fifth operating mode is as follows:

[0261] When the second cold water outlet 24 is opened, the system starts working.

[0262] When the system starts, compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn into the compressor's input end and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of compressor 1 flows sequentially through the refrigerant side of the second hot water heat exchanger 3 and the refrigerant side of the first hot water heat exchanger 4. Since the hot water pump 18 is off at this time, no water flows through either the water side of the first hot water heat exchanger 4 or the water side of the second hot water heat exchanger 3. Therefore, the refrigerant side of both the second hot water heat exchanger 3 and the first hot water heat exchanger 4 only serves as refrigerant flow channels. The refrigerant flowing out of the output end of the first hot water heat exchanger 4 remains at a high temperature. The high-pressure gaseous refrigerant then reaches the third expansion valve 6, which is fully open and only serves as a flow path for the refrigerant. The high-temperature, high-pressure gaseous refrigerant flows through the third expansion valve 6 into the gas heat exchanger 7, which acts as a gas cooler, condensing the high-temperature, high-pressure refrigerant. Simultaneously, the cooling fan 8 operates, blowing indoor air through the gas heat exchanger 7 and then exhausting the air from the chimney. The indoor air exchanges heat with the high-temperature, high-pressure gaseous refrigerant in the gas heat exchanger 7, absorbing the heat and lowering the refrigerant temperature to a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure refrigerant flowing out of the gas heat exchanger 7... The gaseous refrigerant then flows into the inlet of the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat from the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant in the low-pressure side to increase. At this time, the refrigerant flowing out from the outlet of the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is closed. In the first expansion valve 9 state, the refrigerant cannot pass through the second expansion valve 12. In the second expansion valve 12 state, the refrigerant can pass through the second expansion valve 12. Under the throttling action of the second expansion valve 12, the medium-temperature and high-pressure gaseous refrigerant is transformed into a low-temperature and low-pressure gas-liquid mixture refrigerant. The low-temperature and low-pressure gas-liquid mixture refrigerant enters the refrigerant side input end of the second cold water heat exchanger 13 through the second expansion valve 12. The low-temperature and low-pressure gas-liquid mixture refrigerant in the refrigerant side of the second cold water heat exchanger 13 exchanges heat with the water in the water side of the second cold water heat exchanger 13. That is, the low-temperature and low-pressure gas-liquid mixture refrigerant absorbs heat from the water, causing the water temperature to drop. At this time, the temperature of the low-temperature and low-pressure gas-liquid mixture refrigerant rises for the first time.The heated, low-temperature, low-pressure gas-liquid mixture of refrigerant flows out from the refrigerant-side output of the second cold water heat exchanger 13 and enters the refrigerant-side input of the first cold water heat exchanger 14. It flows through the refrigerant-side of the first cold water heat exchanger 14, exchanging heat with the water on the water-side, i.e., absorbing heat from the water. The temperature of the low-temperature, low-pressure gas-liquid mixture rises again, becoming a low-temperature, low-pressure gaseous refrigerant, possibly with a small amount of liquid refrigerant remaining. It then flows out from the refrigerant-side output of the first cold water heat exchanger 14.

[0263] At the same time, the cold water pump 21 starts working, drawing water from the cold water tank 22. The water then enters the water side of the first cold water heat exchanger 14. There, the water in the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant on the refrigerant side. The refrigerant absorbs heat from the water, causing the water temperature to drop. The cooled water then flows into the first cold water opening of the cold water three-way valve 31 and out through the third cold water opening. After being filtered by the drinking water cold water filter 23, the water flows into the water side of the second cold water heat exchanger 13. At this time, the water flowing into the water side of the second cold water heat exchanger 13 exchanges heat with the low-temperature, low-pressure gas-liquid mixture refrigerant in the refrigerant side of the second cold water heat exchanger 13. The low-temperature, low-pressure gas-liquid mixture refrigerant absorbs the heat from the water, causing the water temperature to drop again, approaching the preset drinking water temperature (e.g., 0°C). The cold water flowing out from the outlet end of the water side of the second cold water heat exchanger 13 finally flows out from the second cold water outlet 24 for drinking.

[0264] The low-temperature, low-pressure gaseous refrigerant flowing out from the refrigerant side of the first cold water heat exchanger 14 enters the liquid receiver 15. A small amount of liquid refrigerant is stored in the liquid receiver 15. The gaseous refrigerant enters the inlet of the low-pressure side of the regenerator 5 through the liquid receiver 15. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat and its temperature rises, but it remains in a low-pressure, low-temperature gaseous state. Finally, the low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0265] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 is lower than the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops.

[0266] When the drinking water temperature flowing out of the second cold water outlet 24 is higher than the preset maximum drinking water temperature (e.g., 5°C), that is, when the cold water provided in the cold water tank 22 cannot reach the water temperature requirement of the second cold water outlet 24 after two cooling cycles, that is, when the water temperature in the cold water tank 22 is higher than the set temperature, the second cold water outlet 24 is closed, and the cold water three-way valve 31 is switched to connect the first cold water opening and the second cold water opening to cool down the water in the cold water tank 22 again until the water temperature drops to the set temperature.

[0267] Example 6

[0268] In this embodiment, the integrated stove is in the sixth operating mode, which is used to provide cold air and store and provide the first hot water. For example, the first hot water is domestic hot water, that is, the integrated stove is used as an air conditioner to provide cold air and as a water chiller to provide domestic cold water.

[0269] Please see Figure 7 , Figure 7 This is a system structure diagram of the integrated stove provided in this application in the sixth operating mode. Figure 7 The medium gray line indicates that the area is not in operation.

[0270] In the sixth operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is off, the first hot water inlet of hot water three-way valve 29 is connected to the second hot water inlet, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is closed, the third expansion valve 6 is fully open, the cooling fan 8 is off, and the evaporator fan 11 is on.

[0271] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cooling fan 8 and evaporator fan 11.

[0272] The working principle of the integrated cooktop providing domestic cold water in the sixth operating mode is as follows:

[0273] The system needs to provide cooling air and store and supply the first hot water. When the water temperature in the hot water tank 19 is lower than the set value, the system starts and the compressor 1 starts to work. The input end of the compressor 1 draws in low-pressure and low-temperature gaseous refrigerant, which is compressed into high-temperature and high-pressure gaseous refrigerant after the compressor 1 works. The high-temperature and high-pressure gaseous refrigerant flowing out of the output end of the compressor 1 enters the refrigerant side of the second hot water heat exchanger 3 and then flows into the refrigerant side of the first hot water heat exchanger 4.

[0274] The refrigerant side of the second hot water heat exchanger 3 only serves as a refrigerant flow channel. The high-temperature, high-pressure gaseous refrigerant flowing out from the output end of the refrigerant side of the second hot water heat exchanger 3 enters the refrigerant side of the first hot water heat exchanger 4. At the same time, the water in the hot water tank 19 is pumped out by the hot water pump 18, passes through the hot water pump 18, and then flows into the water side of the first hot water heat exchanger 4 to exchange heat with the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4. The tap water absorbs the heat from the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4, and the tap water temperature rises. The water with the increased temperature then flows into the first hot water opening of the hot water three-way valve 29, and then flows out from the second hot water opening of the hot water three-way valve 29, and finally flows into the hot water tank 19.

[0275] High-temperature, high-pressure gaseous refrigerant enters the refrigerant side of the first hot water heat exchanger 4. Due to the absorption of heat by the tap water in the water side of the first hot water heat exchanger 4, the high-temperature, high-pressure gaseous refrigerant transforms into a medium-temperature, high-pressure gaseous refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out from the output end of the refrigerant side of the first hot water heat exchanger 4 then reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open, acting only as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing out from the third expansion valve 6 then flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing out from the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat from the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 to rise. At this time, the refrigerant flowing out from the outlet of the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flows to the first expansion valve 9 and the second expansion valve 12. At this time, the second expansion valve 12 is in a closed state, and the refrigerant cannot pass through the second expansion valve 12. The first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9.

[0276] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture flowing out of the first expansion valve 9 enters the evaporator 10. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filtering out particulate impurities in the air. The indoor air is then blown through the evaporator 10 by the evaporator fan 11, exchanging heat with the low-temperature, low-pressure gas-liquid mixture refrigerant in the evaporator 10. The refrigerant absorbs the heat from the air, and the air releases heat, transforming into cold air, which is then blown into the room, thus achieving indoor cooling.

[0277] At this time, the low-temperature, low-pressure gas-liquid mixture of refrigerant in the evaporator 10 absorbs heat from the air, its temperature rises, and it becomes a low-temperature, low-pressure gaseous refrigerant, while a small amount of liquid refrigerant remains. The refrigerant flowing out of the evaporator 10 then enters the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant then enters the inlet of the low-pressure side of the regenerator 5 through the liquid receiver 15. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat and its temperature rises, remaining in a low-pressure, low-temperature gaseous state. Finally, the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0278] This cycle continues, with the water in the hot water tank 19 being continuously heated. When the set temperature is reached, the hot water pump 18 stops working, and the tap water that has reached a certain temperature is stored in the hot water tank 19 for use.

[0279] When hot water is needed, open the first hot water outlet 27, and hot water from the hot water tank 19 will flow out from the first hot water outlet 27 for use.

[0280] When water continuously flows out of the hot water tank 19, and the water level in the hot water tank 19 is lower than the set value, the hot water tank 19 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops.

[0281] When the water temperature in the hot water tank 19 is lower than the set temperature, the system restarts the hot water pump 18 to heat the water in the hot water tank 19.

[0282] Example 7

[0283] In this embodiment, the integrated stove is in the seventh operating mode, which is used to provide air conditioning and a second hot water. For example, the second hot water is drinking hot water, that is, the integrated stove is used as an air conditioner to provide air conditioning and as a water heater to provide drinking hot water.

[0284] Please see Figure 8 , Figure 8 This is a system structure diagram of the integrated stove provided in this application in its seventh operating mode. Figure 8 The medium gray line indicates that the area is not in operation.

[0285] In the seventh operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is off, the first hot water inlet of hot water three-way valve 29 is connected to the third hot water inlet, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is closed, the third expansion valve 6 is fully open, the cooling fan 8 is off, and the evaporator fan 11 is on.

[0286] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cooling fan 8 and evaporator fan 11.

[0287] The working principle of the integrated stove providing domestic cold water in the seventh operating mode is as follows:

[0288] The system requires both cooling and secondary hot water. When the secondary hot water outlet 25 is opened, the system starts, and compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn into the compressor's input end and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of compressor 1 enters the refrigerant side of the secondary hot water heat exchanger 3. The high-temperature, high-pressure gaseous refrigerant flowing into the secondary hot water heat exchanger 3 exchanges heat with the water on the second-water side of the heat exchanger 3, heating the water. At this time, the high-temperature, high-pressure gaseous refrigerant on the refrigerant side of the secondary hot water heat exchanger 3... The high-temperature, high-pressure gaseous refrigerant releases heat for the first time, and its temperature drops for the first time. After the temperature drops in the refrigerant side of the second hot water heat exchanger 3, the high-temperature, high-pressure gaseous refrigerant flows back into the refrigerant side of the first hot water heat exchanger 4 and exchanges heat with the water in the water side of the first hot water heat exchanger 4 to heat the water. The refrigerant in the refrigerant side of the first hot water heat exchanger 4 releases heat for the second time, and its temperature drops for the second time. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4 gradually becomes a medium-temperature, high-pressure gaseous refrigerant and flows out from the output end of the refrigerant side of the first hot water heat exchanger 4.

[0289] At the same time, the hot water pump 18 operates, drawing out the hot water stored in the hot water tank 19. The hot water in the hot water tank 19 flows through the hot water pump 18 and then flows from the hot water pump 18 into the water inlet of the first hot water heat exchanger 4. At this time, the water in the water side of the first hot water heat exchanger 4 exchanges heat with the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4. The water in the water side of the first hot water heat exchanger 4 absorbs the heat from the refrigerant in the refrigerant side of the first hot water heat exchanger 4, and the water temperature rises. The heated water then flows out of the first hot water heat exchanger... The water flows out from the outlet end of the water side of the 4, flows to the first hot water opening of the hot water three-way valve 29, and then flows out from the third hot water opening of the hot water three-way valve 29; the hot water flowing out from the third hot water opening of the hot water three-way valve 29 flows through the drinking hot water filter 20, and then flows into the water side of the second hot water heat exchanger 3, where it exchanges heat with the high temperature and high pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3, that is, the water is reheated and reaches the boiling state; the hot water flowing out from the outlet end of the water side of the second hot water heat exchanger 3 finally flows out from the second hot water outlet 25, and is ready to drink.

[0290] The medium-temperature, high-pressure gaseous refrigerant flowing from the refrigerant side of the first hot water heat exchanger 4 reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open and only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing from the third expansion valve 6 then flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing from the gas heat exchanger 7 then flows back into the high-pressure side inlet of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 interacts with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. In the heat exchange process, the low-temperature, low-pressure gaseous refrigerant on the low-pressure side of the regenerator 5 absorbs heat from the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side to increase. At this time, the refrigerant flowing out of the outlet on the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out of the outlet on the high-pressure side of the regenerator 5 flows to the first expansion valve 9 and the second expansion valve 12. At this time, the second expansion valve 12 is in a closed state, and the refrigerant cannot pass through the second expansion valve 12. The first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9.

[0291] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture flowing out of the first expansion valve 9 enters the evaporator 10. At this time, the evaporator fan 11 is in the on state. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filters out particulate impurities in the air, and then blows the indoor air through the evaporator fan 11 across the evaporator 10, where it exchanges heat with the low-temperature, low-pressure gas-liquid mixture refrigerant in the evaporator 10. The refrigerant absorbs the heat from the air, and the air releases heat, transforming into cold air, which is then blown into the room, thus achieving indoor cooling.

[0292] At this time, the low-temperature, low-pressure gas-liquid mixture of refrigerant in the evaporator 10 absorbs heat from the air, its temperature rises, and it becomes a low-temperature, low-pressure gaseous refrigerant, while a small amount of liquid refrigerant remains. The refrigerant flowing out from the output end of the evaporator 10 enters the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant then enters the inlet of the low-pressure side of the regenerator 5 through the liquid receiver 15. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat and its temperature rises, remaining in a low-pressure, low-temperature gaseous state. Finally, the low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0293] When water continuously flows out of the hot water tank 19, and the water level in the hot water tank 19 is lower than the set value, the hot water tank 19 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops.

[0294] When the drinking water temperature flowing out of the second hot water outlet 25 is lower than the set minimum drinking water temperature (e.g., 95°C), that is, when the hot water provided in the hot water tank 19 cannot reach the required water temperature of the second hot water outlet 25 after two heating cycles, that is, when the water temperature in the hot water tank 19 is lower than the set temperature, the second hot water outlet 25 is closed, and the first hot water opening of the hot water three-way valve 29 is connected to the second hot water opening to reheat the water in the hot water tank 19 until the water temperature rises to the set temperature.

[0295] Example 8

[0296] In this embodiment, the integrated stove is in the eighth operating mode, which is used to provide cold air and store and provide first cold water. For example, the first cold water is domestic cold water, that is, the integrated stove is used as an air conditioner to provide cold air and as a water chiller to provide domestic cold water.

[0297] Please see Figure 9 , Figure 9 This is a system structure diagram of the integrated stove provided in this application in the eighth operating mode. Figure 9 The medium gray line indicates that the area is not in operation.

[0298] In the eighth operating mode, compressor 1 is on, hot water pump 18 is off, cold water pump 21 is on, the first cold water inlet of cold water three-way valve 31 is connected to the second cold water inlet, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is in a fully open state, the cooling fan 8 is on, and the evaporator fan 11 is on.

[0299] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0300] The working principle of the integrated cooktop in its eighth operating mode, which provides cooling, storage, and domestic cold water, is as follows:

[0301] The system needs to provide cooling air and store and supply the first chilled water. When the water temperature in the chilled water tank 22 is higher than the set value, the system starts, and compressor 1 begins to work. The input end of compressor 1 draws in low-pressure, low-temperature gaseous refrigerant, which is then compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the output end of compressor 1 flows sequentially through the refrigerant side of the second hot water heat exchanger 3 and the refrigerant side of the first hot water heat exchanger 4. Since the hot water pump 18 is in the off state at this time, no water flows through the water side of the second hot water heat exchanger 3 and the water side of the first hot water heat exchanger 4. In the first hot water heat exchanger 4, no heat exchange occurs in the refrigerant side; that is, the refrigerant sides of the second hot water heat exchanger 3 and the first hot water heat exchanger 4 only serve as refrigerant flow channels. The high-temperature, high-pressure gaseous refrigerant flowing from the output end of the first hot water heat exchanger 4 reaches the third expansion valve 6, which is fully open and only serves as a refrigerant flow channel. The high-temperature, high-pressure gaseous refrigerant flowing from the third expansion valve 6 flows into the gas heat exchanger 7. At this time, the gas heat exchanger 7 acts as a gas cooler, condensing the high-temperature, high-pressure refrigerant. Simultaneously, the cooling fan 8 operates. Indoor air is blown through the gas heat exchanger 7 and then discharged from the chimney. The indoor air exchanges heat with the high-temperature, high-pressure gaseous refrigerant inside the gas heat exchanger 7. The indoor air absorbs the heat from the high-temperature, high-pressure gaseous refrigerant, causing the refrigerant temperature inside the gas heat exchanger 7 to decrease, becoming a medium-temperature, high-pressure gaseous refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat from the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The heat from the high-temperature, high-pressure gaseous refrigerant causes the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side increases. At this time, the refrigerant flowing out from the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9. The second expansion valve 12 is also in a throttling state, and the refrigerant can pass through the second expansion valve 12. That is, the medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 flows through two separate paths.

[0302] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the evaporator 10 through the first expansion valve 9. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filtering out particulate impurities in the air. The indoor air is then blown through the evaporator 10 by the evaporator fan 11, exchanging heat with the low-temperature, low-pressure gas-liquid mixture in the evaporator 10. The refrigerant absorbs heat from the air, and the air releases heat, transforming into cold air, which is then blown into the room, thus achieving indoor cooling.

[0303] Under the throttling action of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture refrigerant. This low-temperature, low-pressure gas-liquid mixture refrigerant enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12. The refrigerant side of the second cold water heat exchanger 13 only serves as a flow path for the refrigerant. The refrigerant flowing out from the refrigerant side of the second cold water heat exchanger 13 then enters the refrigerant side of the first cold water heat exchanger 14. Simultaneously, the cold water pump 21 is activated, and under the operation of the cold water pump 21... When in use, the water in the cold water tank 22 is pumped out, flows through the cold water pump 21, and then flows from the cold water pump 21 into the water side of the first cold water heat exchanger 14; the water flowing into the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant in the refrigerant side of the first cold water heat exchanger 14, and the refrigerant absorbs the heat of the water, causing the water temperature to drop; the cooled cold water then flows to the first cold water opening of the cold water three-way valve 31, flows out from the second cold water opening of the cold water three-way valve 31, and then flows into the cold water tank 22.

[0304] The refrigerant passing through evaporator 10 absorbs heat from the air as a low-temperature, low-pressure gas-liquid mixture, causing its temperature to rise and transforming into a low-temperature, low-pressure gaseous refrigerant, while retaining a small amount of liquid refrigerant.

[0305] The refrigerant passing through the first cold water heat exchanger 14 absorbs heat from the tap water on the water side of the first cold water heat exchanger 14 as the low-temperature, low-pressure gas-liquid mixture absorbs heat. The temperature of the refrigerant on the refrigerant side of the first cold water heat exchanger 14 rises, and it transforms into a low-temperature, low-pressure gaseous refrigerant. A small amount of liquid refrigerant may also be present.

[0306] Two streams of low-temperature, low-pressure gaseous refrigerant enter the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant then passes through the liquid receiver 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5, causing the temperature of the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 to rise. Finally, the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0307] This cycle continues, and the water in the cold water tank 22 is continuously cooled. When the set temperature is reached, the cold water pump 21 stops working, and the tap water that has reached a certain temperature is stored in the cold water tank 22.

[0308] When domestic cold water is needed, open the first cold water outlet 26, and cold water in the cold water tank 22 will flow out from the first cold water outlet 26 for use.

[0309] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 is lower than the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops.

[0310] When the water temperature in the cold water tank 22 is higher than the set temperature, the system controls the cold water pump 21 to start again and cool the tap water in the cold water tank 22.

[0311] Example 9

[0312] In this embodiment, the integrated stove is in the ninth operating mode, which is used to provide cold air and a second cold water. For example, the second cold water is drinking cold water, that is, the integrated stove is used as an air conditioner to provide cold air and as a water chiller to provide drinking cold water.

[0313] Please see Figure 10 , Figure 10 This is a system structure diagram of the integrated stove provided in this application in the ninth operating mode. Figure 10 The medium gray line indicates that the area is not in operation.

[0314] In the ninth operating mode, compressor 1 is on, hot water pump 18 is off, cold water pump 21 is on, the first cold water opening of cold water three-way valve 31 is connected to the third cold water opening, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is in a fully open state, the cooling fan 8 is on, and the evaporator fan 11 is on.

[0315] The controller can be used to control the on / off / operation status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0316] The working principle of the integrated cooktop in its ninth operating mode, which provides both air conditioning and drinking water, is as follows:

[0317] When indoor cooling is required, and drinking cold water is also needed, the second cold water outlet 24 is opened, the system starts, and compressor 1 begins to work. The compressor 1 draws in low-pressure, low-temperature gaseous refrigerant, which is then compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the compressor 1 flows sequentially through the refrigerant side of the second hot water heat exchanger 3 and the refrigerant side of the first hot water heat exchanger 4. Since the hot water pump 18 is off at this time, no water flows through the water side of the second hot water heat exchanger 3 and the water side of the first hot water heat exchanger 4. The refrigerant on the refrigerant side of the water heat exchanger 4 does not undergo heat exchange; that is, the refrigerant sides of the second hot water heat exchanger 3 and the first hot water heat exchanger 4 only serve as refrigerant flow channels. The high-temperature, high-pressure gaseous refrigerant flowing from the output end of the first hot water heat exchanger 4 reaches the third expansion valve 6, which is fully open at this time. The third expansion valve 6 only serves as a refrigerant flow channel, and the high-temperature, high-pressure gaseous refrigerant flowing from the third expansion valve 6 flows into the gas heat exchanger 7. At this time, the gas heat exchanger 7 acts as a gas cooler, condensing the high-temperature, high-pressure refrigerant. Simultaneously, the cooling fan 8 operates, [further cooling the gas]. Indoor air is blown through the gas heat exchanger 7 and then discharged from the chimney. The indoor air exchanges heat with the high-temperature, high-pressure gaseous refrigerant inside the gas heat exchanger 7. The indoor air absorbs the heat from the high-temperature, high-pressure gaseous refrigerant, causing the refrigerant temperature inside the gas heat exchanger 7 to decrease, becoming a medium-temperature, high-pressure gaseous refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat from the medium-temperature gaseous refrigerant in the high-pressure side of the regenerator 5. The heat from the high-pressure gaseous refrigerant causes the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side increases. At this time, the refrigerant flowing out from the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9. The second expansion valve 12 is also in a throttling state, and the refrigerant can pass through the second expansion valve 12. That is, the medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 flows through two separate paths.

[0318] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the evaporator 10 through the first expansion valve 9. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filtering out particulate impurities in the air. The indoor air is then blown through the evaporator 10 by the evaporator fan 11, exchanging heat with the low-temperature, low-pressure gas-liquid mixture in the evaporator 10. The refrigerant absorbs heat from the air, and the air releases heat, transforming into cold air which is then blown into the room, thus achieving indoor cooling.

[0319] The refrigerant passing through evaporator 10 absorbs heat from the air as a low-temperature, low-pressure gas-liquid mixture, causing its temperature to rise and transforming into a low-temperature, low-pressure gaseous refrigerant, while retaining a small amount of liquid refrigerant.

[0320] Under the throttling action of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure gas-liquid mixture enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12. The low-temperature, low-pressure gas-liquid mixture in the second cold water heat exchanger 13 exchanges heat with the water on the second cold water heat exchanger 13. In other words, the low-temperature, low-pressure gas-liquid mixture in the refrigerant side of the second cold water heat exchanger 13 absorbs heat from the water on the water side of the second cold water heat exchanger 13. The water temperature decreases, causing the temperature of the low-temperature, low-pressure gas-liquid mixture refrigerant to rise for the first time. This heated refrigerant flows out from the refrigerant side of the second cold water heat exchanger 13 and enters the refrigerant side of the first cold water heat exchanger 14. The low-temperature, low-pressure gas-liquid mixture in the first cold water heat exchanger 14 exchanges heat with the water on its water side, absorbing heat from the water. The temperature of the low-temperature, low-pressure gas-liquid mixture refrigerant rises again, transforming into a low-temperature, low-pressure gaseous refrigerant, possibly with a small amount of liquid remaining. The refrigerant in a certain state flows out from the refrigerant side of the first cold water heat exchanger 14; at the same time, the cold water pump 21 starts working, drawing water from the cold water tank 22 and entering the water side of the first cold water heat exchanger 14; at this time, the water entering the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant in the refrigerant side of the first cold water heat exchanger 14, and the refrigerant absorbs heat from the water, causing the water temperature to drop; the water with the lower temperature then flows into the first cold water opening of the cold water three-way valve 31, and flows out from the cold water three-way valve 31. The water flows out from the third cold water outlet of 1, and after being filtered by the drinking cold water filter 23, it flows into the water side of the second cold water heat exchanger 13. At this time, the water flowing into the water side of the second cold water heat exchanger 13 exchanges heat with the low-temperature and low-pressure gas-liquid mixture of the refrigerant on the refrigerant side of the second cold water heat exchanger 13. The low-temperature and low-pressure gas-liquid mixture of the refrigerant absorbs the heat of the water, causing the water temperature to drop again and approach the preset drinking cold water temperature (e.g., 0°C). The cold water flowing out from the outlet of the water side of the second cold water heat exchanger 13 finally flows out from the second cold water outlet 24 for drinking.

[0321] Two streams of low-temperature, low-pressure gaseous refrigerant enter the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant then passes through the liquid receiver 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 absorbs heat and its temperature rises, remaining in a low-pressure, low-temperature gaseous state. Finally, the low-temperature, low-pressure gaseous refrigerant on the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0322] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 is lower than the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops.

[0323] When the drinking water temperature flowing out of the second cold water outlet 24 is higher than the preset drinking water temperature threshold (e.g., 5°C), that is, when the cold water provided in the cold water tank 22 cannot reach the water temperature requirement of the second cold water outlet 24 after two cooling cycles, that is, when the water temperature in the cold water tank 22 is higher than the set temperature, the second cold water outlet 24 is closed, and the cold water three-way valve 31 is switched to connect the first cold water opening and the second cold water opening to cool down the water in the cold water tank 22 again until the water temperature drops to the set temperature.

[0324] Example 10

[0325] In this embodiment, the integrated stove is in the tenth operating mode, which is used to store and provide first hot water and store and provide first cold water. For example, the first hot water is domestic hot water and the first cold water is domestic cold water. That is, the integrated stove acts as a water heater to provide domestic hot water and as a cold water heater to provide domestic cold water.

[0326] Please see Figure 11 , Figure 11 This is a system structure diagram of the integrated stove provided in this application in the tenth operating mode. Figure 11 The medium gray line indicates that the area is not in operation.

[0327] In the tenth operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is on, the first hot water opening of hot water three-way valve 29 is connected to the second hot water opening, the first cold water opening of cold water three-way valve 31 is connected to the second cold water opening, the first expansion valve 9 is closed, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is fully open, the cooling fan 8 is off, and the evaporator fan 11 is off.

[0328] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0329] The working principle of the integrated cooktop providing domestic hot and cold water in the tenth operating mode is as follows:

[0330] The system starts working when the water temperature in the hot water tank 19 is lower than the set temperature, and when the water temperature in the cold water tank 22 is higher than the set temperature.

[0331] When the system starts, compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn into the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the output end of compressor 1 enters the refrigerant side of the second hot water heat exchanger 3, and the refrigerant flowing out of the second hot water heat exchanger 3 flows into the refrigerant side of the first hot water heat exchanger 4.

[0332] The refrigerant side of the second hot water heat exchanger 3 only serves as a flow channel for the refrigerant. The high-temperature and high-pressure gaseous refrigerant from the second hot water heat exchanger 3 enters the refrigerant side of the first hot water heat exchanger 4. At the same time, the water in the hot water tank 19 is pumped out by the hot water pump 18, passes through the hot water pump 18, and then flows into the water side of the first hot water heat exchanger 4 to exchange heat with the high-temperature and high-pressure gaseous refrigerant in the first hot water heat exchanger 4. The tap water absorbs the heat from the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4, and the tap water temperature rises. The water with the increased temperature then flows into the first hot water opening of the hot water three-way valve 29, and then flows out from the second hot water opening of the hot water three-way valve 29, and finally flows into the hot water tank 19.

[0333] The high-temperature, high-pressure gaseous refrigerant flowing from the refrigerant side of the second hot water heat exchanger 3 enters the refrigerant side of the first hot water heat exchanger 4. Due to the heat absorbed by the tap water, the high-temperature, high-pressure gaseous refrigerant in the first hot water heat exchanger 4 transforms into a medium-temperature, high-pressure gaseous refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing from the output end of the refrigerant side of the first hot water heat exchanger 4 reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open, meaning it only acts as a refrigerant flow path. From the third expansion valve 6... The outflowing medium-temperature, high-pressure gaseous refrigerant flows through the gas heat exchanger 7. During this time, the cooling fan 8 is not operating, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; that is, the gas heat exchanger 7 only serves as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5... The heat absorbed by the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 causes the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side increases. At this time, the refrigerant flowing out from the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. This medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is closed, and the refrigerant cannot pass through the first expansion valve 9. The second expansion valve 12... In throttling mode 2, the refrigerant can pass through the second expansion valve 12. Under the throttling effect of the second expansion valve 12, the medium-temperature and high-pressure gaseous refrigerant is transformed into a low-temperature and low-pressure gas-liquid mixture refrigerant. The low-temperature and low-pressure gas-liquid mixture refrigerant enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12. The refrigerant side of the second cold water heat exchanger 13 only serves as a flow pipeline for the refrigerant. The low-temperature and low-pressure gas-liquid mixture refrigerant flowing out from the refrigerant side of the second cold water heat exchanger 13 then enters the refrigerant side of the first cold water heat exchanger 14.

[0334] At the same time, the cold water pump 21 is turned on. Under the action of the cold water pump 21, the water in the cold water tank 22 is drawn out, flows through the cold water pump 21, and then flows from the cold water pump 21 into the water side of the first cold water heat exchanger 14. The water flowing into the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture refrigerant in the refrigerant side of the first cold water heat exchanger 14. The refrigerant absorbs the heat of the water, causing the water temperature to drop. The cooled tap water then flows to the first cold water opening of the cold water three-way valve 31, flows out from the second cold water opening of the cold water three-way valve 31, and then flows into the cold water tank 22.

[0335] The low-temperature, low-pressure gas-liquid mixture of refrigerant on the refrigerant side of the first cold water heat exchanger 14 absorbs heat from the water on the water side of the first cold water heat exchanger 14, causing the refrigerant temperature on the refrigerant side of the first cold water heat exchanger 14 to rise and transform into a low-temperature, low-pressure gaseous refrigerant, with a possible small amount of liquid refrigerant remaining. The refrigerant flowing out from the refrigerant side of the first cold water heat exchanger 14 then enters the liquid storage tank 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant then enters the low-pressure side of the regenerator 5 through the liquid storage tank 15. The low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 absorbs heat and its temperature rises, remaining in a low-pressure, low-temperature gaseous state. Finally, the low-temperature, low-pressure gaseous refrigerant on the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0336] This cycle continues, with the water in the hot water tank 19 being continuously heated. When the set temperature is reached, heating of the water in the hot water tank 19 stops. When domestic hot water is needed, the first hot water outlet 27 is opened, and hot water from the hot water tank 19 flows out from the first hot water outlet 27 for use.

[0337] When water continuously flows out of the hot water tank 19 and the water level in the hot water tank 19 falls below the set value, the hot water tank 19 automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops. When the water temperature in the hot water tank 19 falls below the set temperature, the system starts working again.

[0338] This cycle continues, constantly cooling the water in the cold water tank 22. When the tap water temperature drops to a certain level, it can be stored in the cold water tank 22. When the set temperature is reached, the cooling of the water in the cold water tank 22 stops. When domestic cold water is needed, the first cold water outlet 26 is opened, and the cold water in the cold water tank 22 flows out from the first cold water outlet 26 for use.

[0339] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 falls below the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops. When the water temperature in the cold water tank 22 is higher than the set temperature, the system starts working again.

[0340] Example 11

[0341] In this embodiment, the integrated stove is in the eleventh operating mode, which is used to provide air conditioning, store and provide first hot water, and store and provide first cold water. For example, the first hot water is domestic hot water and the first cold water is domestic cold water. That is, the integrated stove acts as an air conditioner to provide air conditioning, as a water heater to provide domestic hot water, and as a water chiller to provide domestic cold water.

[0342] Please see Figure 12 , Figure 12 This is a system structure diagram of the integrated stove provided in this application in the eleventh operating mode. Figure 12 The medium gray line indicates that the area is not in operation.

[0343] In the eleventh operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is on, the first hot water inlet of hot water three-way valve 29 is connected to the second hot water inlet, the first cold water inlet of cold water three-way valve 31 is connected to the second cold water inlet, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is in a fully open state, the cooling fan 8 is off, and the evaporator fan 11 is on.

[0344] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0345] The working principle of the integrated cooktop in its eleventh operating mode, which provides air conditioning, domestic hot water, and domestic cold water, is as follows:

[0346] The system starts working when indoor cooling is needed, when the water temperature in the hot water tank 19 is lower than the set temperature, and when the water temperature in the cold water tank 22 is higher than a certain temperature.

[0347] When the system starts, compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn into the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the output end of compressor 1 enters the refrigerant side of the second hot water heat exchanger 3, and the refrigerant flowing out of the second hot water heat exchanger 3 flows into the refrigerant side of the first hot water heat exchanger 4.

[0348] The refrigerant side of the second hot water heat exchanger 3 only serves as a refrigerant flow channel. The high-temperature, high-pressure gaseous refrigerant flowing out from the refrigerant side of the second hot water heat exchanger 3 enters the refrigerant side of the first hot water heat exchanger 4. At the same time, the water in the hot water tank 19 is pumped out by the hot water pump 18, passes through the hot water pump 18, and then flows into the water side of the first hot water heat exchanger 4 to exchange heat with the high-temperature, high-pressure gaseous refrigerant in the first hot water heat exchanger 4. The tap water absorbs the heat from the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4, and the tap water temperature rises. The water with the increased temperature then flows into the first hot water opening of the hot water three-way valve 29, then flows out from the second hot water opening of the hot water three-way valve 29, and finally flows into the hot water tank 19.

[0349] High-temperature, high-pressure gaseous refrigerant enters the refrigerant side of the first hot water heat exchanger 4. Due to the absorption of heat by the tap water, the high-temperature, high-pressure gaseous refrigerant transforms into a medium-temperature, high-pressure gaseous refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out from the refrigerant side of the first hot water heat exchanger 4 reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open, meaning it only serves as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out from the third expansion valve 6 then flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; that is, the gas heat exchanger 7 only serves as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out from the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5, where it becomes a medium-temperature, high-pressure gaseous refrigerant. The refrigerant exchanges heat with the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the refrigerant 5. The low-temperature, low-pressure gaseous refrigerant on the low-pressure side of the refrigerant 5 absorbs heat from the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the refrigerant 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the refrigerant 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side to increase. At this time, the refrigerant flowing out from the high-pressure side of the refrigerant 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the refrigerant 5 then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9. The second expansion valve 12 is also in a throttling state, and the refrigerant can pass through the second expansion valve 12. That is, the medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the refrigerant 5 flows through two separate paths.

[0350] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the evaporator 10 through the first expansion valve 9. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filtering out particulate impurities in the air. The indoor air is then blown through the evaporator 10 by the evaporator fan 11, exchanging heat with the low-temperature, low-pressure gas-liquid mixture in the evaporator 10. The refrigerant absorbs heat from the air, and the air releases heat, transforming into cold air which is then blown into the room, thus achieving indoor cooling.

[0351] Under the throttling action of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture refrigerant. This low-temperature, low-pressure gas-liquid mixture refrigerant enters the refrigerant side of the second cold water regenerator 5 through the second expansion valve 12, and then flows out of the refrigerant side of the second cold water regenerator 5 back into the refrigerant side of the first cold water heat exchanger 14. Simultaneously, the cold water pump 21 is activated, and under the action of the cold water pump 21, the cold water tank 22... The water inside is pumped out and flows through the cold water pump 21, and then flows from the cold water pump 21 into the water side of the first cold water heat exchanger 14. The water flowing into the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant in the refrigerant side of the first cold water heat exchanger 14. The refrigerant absorbs the heat of the water, causing the water temperature to drop. The cooled tap water then flows to the first cold water opening of the cold water three-way valve 31, flows out from the second cold water opening of the cold water three-way valve 31, and then flows into the cold water tank 22.

[0352] The refrigerant passing through evaporator 10 absorbs heat from the air as a low-temperature, low-pressure gas-liquid mixture, causing its temperature to rise and transforming into a low-temperature, low-pressure gaseous refrigerant, while retaining a small amount of liquid refrigerant.

[0353] The refrigerant passing through the first hot water heat exchanger 4 absorbs heat from the tap water in the water side of the first hot water heat exchanger 4. The temperature of the refrigerant in the first hot water heat exchanger 4 rises and transforms into a low-temperature, low-pressure gaseous refrigerant. There may be a small amount of liquid refrigerant present.

[0354] Two streams of low-temperature, low-pressure gaseous refrigerant enter the liquid receiver 15. A small amount of liquid refrigerant is stored in the liquid receiver 15. The gaseous refrigerant passes through the liquid receiver 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The temperature of the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 rises due to heat absorption. Finally, the low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0355] This cycle continues, with the water in the hot water tank 19 being continuously heated. When the set temperature is reached, heating stops, and the tap water at the desired temperature is stored in the hot water tank 19. When hot water is needed, the first hot water outlet 27 is opened, and the hot water in the hot water tank 19 flows out from the first hot water outlet 27 for use.

[0356] When water continuously flows out of the hot water tank 19, and the water level in the hot water tank 19 is lower than the set value, the hot water tank 19 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops.

[0357] This cycle continues, constantly cooling the water in the cold water tank 22. When the tap water temperature drops to a certain level, it can be stored in the cold water tank 22. When the set temperature is reached, the cooling of the water in the cold water tank 22 stops. When domestic cold water is needed, the first cold water outlet 26 is opened, and the cold water in the cold water tank 22 flows out from the first cold water outlet 26 for use.

[0358] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 is lower than the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops.

[0359] Example 12

[0360] In this embodiment, the integrated stove is in the twelfth operating mode, which is used to provide air conditioning, a second hot water supply, and a second cold water supply. For example, the second hot water supply is drinking hot water, and the second cold water supply is drinking cold water. That is, the integrated stove acts as an air conditioner to provide air conditioning, as a water heater to provide drinking hot water, and as a water heater to provide drinking cold water.

[0361] Please see Figure 13 , Figure 13 This is a system structure diagram of the integrated stove provided in this application in its twelfth operating mode. Figure 13 The medium gray line indicates that the area is not in operation.

[0362] In the twelfth operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is on, the first hot water opening of hot water three-way valve 29 is connected to the third hot water opening, the first cold water opening of cold water three-way valve 31 is connected to the third cold water opening, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is in a fully open state, the cooling fan 8 is off, and the evaporator fan 11 is on.

[0363] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0364] The working principle of the integrated cooktop in its twelfth operating mode, which provides air conditioning, hot water, and cold water, is as follows:

[0365] The system starts working when it provides air conditioning, hot water for drinking (the second hot water outlet 25 is opened), and cold water for drinking (the second cold water outlet 24 is opened).

[0366] When the system starts, compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn in at the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the output end of compressor 1 enters the refrigerant side of the second hot water heat exchanger 3. The high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3 exchanges heat with the water in the water side of the second hot water heat exchanger 3, heating the water. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3 is released for the first time. The heat is released, and the temperature decreases for the first time. The high-temperature and high-pressure gaseous refrigerant, after its temperature decreases in the refrigerant side of the second hot water heat exchanger 3, flows back into the refrigerant side of the first hot water heat exchanger 4 and exchanges heat with the water in the water side of the first hot water heat exchanger 4 to heat the water. The refrigerant in the refrigerant side of the first hot water heat exchanger 4 releases heat for the second time, and the temperature decreases for the second time. At this time, the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4 gradually becomes a medium-temperature and high-pressure gaseous refrigerant and flows out from the refrigerant side of the first hot water heat exchanger 4.

[0367] Meanwhile, the hot water pump 18 operates, drawing out the hot water stored in the hot water tank 19. The hot water in the hot water tank 19 flows through the hot water pump 18 and then flows from the hot water pump 18 into the water side of the first hot water heat exchanger 4. At this time, the water in the water side of the first hot water heat exchanger 4 exchanges heat with the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4. The water in the water side absorbs the heat of the refrigerant, and the water temperature rises. The heated water then flows out from the outlet end of the water side of the first hot water heat exchanger 4, flows to the first hot water opening of the hot water three-way valve 29, and then flows out from the third hot water opening of the hot water three-way valve 29. The water flowing out from the third hot water opening of the hot water three-way valve 29 flows through the drinking hot water filter 20 and then flows into the water side of the second hot water heat exchanger 3, where it exchanges heat with the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3, that is, the water is reheated and reaches the boiling state. The hot water flowing out from the outlet end of the water side of the second hot water heat exchanger 3 finally flows out from the second hot water outlet 25 and is ready for drinking.

[0368] The medium-temperature, high-pressure gaseous refrigerant flowing from the refrigerant side of the first hot water heat exchanger 4 reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open and only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing from the third expansion valve 6 flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing from the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat. The gaseous refrigerant absorbs heat from the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side of the regenerator 5 to increase. At this time, the refrigerant flowing out from the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9. The second expansion valve 12 is also in a throttling state, and the refrigerant can pass through the second expansion valve 12. That is, the medium-temperature, high-pressure gaseous refrigerant flowing out from the output end of the high-pressure side of the regenerator 5 flows through two paths.

[0369] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the evaporator 10 through the first expansion valve 9. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filtering out particulate impurities in the air. The indoor air is then blown through the evaporator 10 by the evaporator fan 11, exchanging heat with the low-temperature, low-pressure gas-liquid mixture in the evaporator 10. The refrigerant absorbs heat from the air, and the air releases heat, transforming into cold air which is then blown into the room, thus achieving indoor cooling.

[0370] The refrigerant passing through evaporator 10 absorbs heat from the air as a low-temperature, low-pressure gas-liquid mixture, causing its temperature to rise and transforming into a low-temperature, low-pressure gaseous refrigerant, while retaining a small amount of liquid refrigerant.

[0371] Under the throttling action of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture refrigerant. This low-temperature, low-pressure gas-liquid mixture refrigerant enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12. The low-temperature, low-pressure gas-liquid mixture refrigerant in the second cold water heat exchanger 13 exchanges heat with the water in the second cold water heat exchanger 13. That is, the low-temperature, low-pressure gas-liquid mixture refrigerant absorbs heat from the water, causing the water temperature to decrease. At this time, the low-temperature, low-pressure gas-liquid mixture refrigerant... The temperature rises for the first time; the heated, low-temperature, low-pressure gas-liquid mixture of refrigerant flows out from the refrigerant side of the second cold water heat exchanger 13 and enters the refrigerant side of the first cold water heat exchanger 14. The low-temperature, low-pressure gas-liquid mixture in the first cold water heat exchanger 14 exchanges heat with the water on the water side, absorbing heat from the water. The temperature of the low-temperature, low-pressure gas-liquid mixture rises again, becoming a low-temperature, low-pressure gaseous refrigerant. A small amount of liquid refrigerant may remain, which then exchanges heat with the first cold water. The refrigerant flows out from the refrigerant side of the first cold water heat exchanger 14; at the same time, the cold water pump 21 starts working, drawing water from the cold water tank 22 and sending it into the water side of the first cold water heat exchanger 14; at this time, the water entering the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant in the refrigerant side of the first cold water heat exchanger 14, and the refrigerant absorbs heat from the water, causing the water temperature to drop; the water with the lowered temperature then flows in from the first cold water opening of the cold water three-way valve 31, and from the third cold water opening of the cold water three-way valve 31... The water flows out through the opening; after being filtered by the drinking cold water filter 23, it flows into the water side of the second cold water heat exchanger 13. At this time, the water flowing into the water side of the second cold water heat exchanger 13 exchanges heat with the low-temperature and low-pressure gas-liquid mixture of the refrigerant on the refrigerant side of the second cold water heat exchanger 13. The low-temperature and low-pressure gas-liquid mixture of the refrigerant absorbs the heat of the water, causing the water temperature to drop again, approaching the preset drinking cold water temperature (e.g., 0°C). The cold water flowing out from the outlet end of the water side of the second cold water heat exchanger 13 finally flows out from the second cold water outlet 24 for drinking.

[0372] Two streams of low-temperature, low-pressure gaseous refrigerant enter the liquid receiver 15. A small amount of liquid refrigerant is stored in the liquid receiver 15. The gaseous refrigerant passes through the liquid receiver 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The temperature of the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 rises due to heat absorption. Finally, the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0373] When water continuously flows out of the hot water tank 19 and the water level in the hot water tank 19 falls below the set value, the hot water tank 19 automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops. When the drinking water temperature flowing out of the second hot water outlet 25 is lower than the preset minimum drinking water temperature (e.g., 95℃), that is, when the hot water provided by the hot water tank 19 cannot reach the required water temperature of the second hot water outlet 25 after two heating cycles, that is, when the water temperature in the hot water tank 19 is lower than the set temperature, the second hot water outlet 25 is closed, and the hot water three-way valve 29 is switched to connect the first hot water opening and the second hot water opening to reheat the water in the hot water tank 19 until the water temperature rises to the set temperature.

[0374] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 falls below the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops. When the drinking cold water temperature flowing out of the second cold water outlet 24 is higher than the drinking cold water temperature threshold (e.g., 5°C), that is, when the cold water provided by the cold water tank 22 cannot reach the required water temperature of the second cold water outlet 24 after two cooling cycles, that is, when the water temperature in the cold water tank 22 is higher than the set temperature, the second cold water outlet 24 is closed, and the cold water three-way valve 31 is switched to connect the first cold water opening and the second cold water opening to cool down the water in the cold water tank 22 again until the water temperature drops to the set temperature.

[0375] Example 13

[0376] In this embodiment, the integrated stove is in the thirteenth operating mode, which is used to provide a second hot water and a second cold water. For example, the second hot water is drinking hot water and the second cold water is drinking cold water. That is, the integrated stove acts as a water heater to provide drinking hot water and as a cold water heater to provide drinking cold water.

[0377] Please see Figure 14 , Figure 14 This is a system structure diagram of the integrated stove provided in this application under the thirteenth operating mode. Figure 14 The medium gray line indicates that the area is not in operation.

[0378] The hot water pump 18 is in the on state, the cold water pump 21 is in the on state, the first hot water opening of the hot water three-way valve 29 is connected to the third hot water opening, the first cold water opening of the cold water three-way valve 31 is connected to the third cold water opening, the first expansion valve 9 is in the closed state, the second expansion valve 12 is in the throttling state, the third expansion valve 6 is in the fully open state, the cooling fan 8 is in the off state, and the evaporator fan 11 is in the off state.

[0379] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0380] The working principle of the integrated cooktop providing both hot and cold drinking water in its thirteenth operating mode is as follows:

[0381] The system starts working when hot drinking water is provided (the second hot water outlet 25 is opened) and cold drinking water is provided (the second cold water outlet 24 is opened).

[0382] The system starts, and compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn in at the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the output end of compressor 1 enters the refrigerant side of the second hot water heat exchanger 3. The high-temperature, high-pressure gaseous refrigerant flowing into the refrigerant side of the second hot water heat exchanger 3 exchanges heat with the water in the water side of the second hot water heat exchanger 3, heating the water. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3 releases heat for the first time. Heat is released, and the temperature drops for the first time. The high-temperature, high-pressure gaseous refrigerant, after its temperature drops in the refrigerant side of the second hot water heat exchanger 3, flows back into the refrigerant side of the first hot water heat exchanger 4 and exchanges heat with the water in the water side of the second hot water heat exchanger 3 to heat the water. The refrigerant in the refrigerant side of the first hot water heat exchanger 4 releases heat for the second time, and the temperature drops for the second time. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4 gradually becomes a medium-temperature, high-pressure gaseous refrigerant and flows out from the refrigerant side of the first hot water heat exchanger 4.

[0383] At the same time, the hot water pump 18 operates, drawing out the hot water stored in the hot water tank 19. The hot water in the hot water tank 19 flows through the hot water pump 18 and then flows from the hot water pump 18 into the water side of the first hot water heat exchanger 4. At this time, the water in the water side of the first hot water heat exchanger 4 exchanges heat with the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4. The water in the water side absorbs the heat from the refrigerant, and the water temperature rises. The heated water then flows out from the water side of the first hot water heat exchanger 4 and flows to the first hot water three-way valve 29. The hot water flows out from the third hot water outlet of the hot water three-way valve 29; the water flowing out from the third hot water outlet of the hot water three-way valve 29 flows through the drinking hot water filter 20; and then flows into the water side of the second hot water heat exchanger 3; the hot water in the water side of the second hot water heat exchanger 3 exchanges heat with the high temperature and high pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3, that is, the water is reheated and reaches the boiling state; the hot water flowing out from the outlet end of the water side of the second hot water heat exchanger 3 finally flows out from the second hot water outlet 25, and can be drunk.

[0384] The medium-temperature, high-pressure gaseous refrigerant flowing from the refrigerant side of the first hot water heat exchanger 4 reaches the first expansion valve 9. At this time, the first expansion valve 9 is fully open and only acts as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant then flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only acts as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 interacts with the regenerator. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of regenerator 5. This absorbs heat from the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of regenerator 5 to decrease, while the temperature of the low-pressure, low-temperature gaseous refrigerant in the low-pressure side to increase. At this time, the refrigerant flowing out from the high-pressure side of regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of regenerator 5 then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is in a closed state, and the refrigerant... The refrigerant cannot pass through the first expansion valve 9; the second expansion valve 12 is in a throttling state, allowing the refrigerant to pass through. Under the throttling effect of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant transforms into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12. The low-temperature, low-pressure gas-liquid mixture in the refrigerant side of the second cold water heat exchanger 13 exchanges heat with the water on the water side, i.e., the low-temperature, low-pressure gas-liquid mixture absorbs heat from the water, causing the water temperature to decrease. At this time, the temperature of the low-temperature, low-pressure gas-liquid mixture refrigerant rises for the first time; the heated low-temperature, low-pressure gas-liquid mixture refrigerant flows out from the refrigerant side of the second cold water heat exchanger 13 and enters the refrigerant side of the first cold water heat exchanger 14. The low-temperature, low-pressure gas-liquid mixture refrigerant in the refrigerant side of the first cold water heat exchanger 14 exchanges heat with the water in the water side of the first cold water heat exchanger 14, that is, it absorbs the heat of the water. The temperature of the low-temperature, low-pressure gas-liquid mixture refrigerant rises again and becomes a low-temperature, low-pressure gaseous refrigerant. There may be a small amount of liquid refrigerant. It then flows out from the refrigerant side of the first cold water heat exchanger 14.

[0385] At the same time, the cold water pump 21 starts working, drawing water from the cold water tank 22 and pumping it into the water side of the first cold water heat exchanger 14. The water in the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant on the refrigerant side of the first cold water heat exchanger 14. The refrigerant absorbs heat from the water, causing the water temperature to drop. The cooled water then flows in through the first cold water opening of the cold water three-way valve 31 and flows out through the third cold water opening of the cold water three-way valve 31. After being filtered by the drinking cold water filter 23, the water flows into the water side of the second cold water heat exchanger 13. At this time, the water flowing into the water side of the second cold water heat exchanger 13 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of the refrigerant on the refrigerant side of the second cold water heat exchanger 13. The low-temperature, low-pressure gas-liquid mixture of the refrigerant absorbs the heat from the water, causing the water temperature to drop again, approaching the preset drinking cold water temperature (e.g., 0°C). The cold water flowing out from the water side of the second cold water heat exchanger 13 finally flows out from the second cold water outlet 24 for drinking.

[0386] The low-temperature, low-pressure gas-liquid mixture of refrigerant flowing out from the refrigerant side of the first cold water heat exchanger 14 enters the liquid storage tank 15. A small amount of liquid refrigerant is stored in the liquid storage tank 15. The gaseous refrigerant passes through the liquid storage tank 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The temperature of the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 rises due to heat absorption. Finally, the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0387] When water continuously flows out of the hot water tank 19 and the water level in the hot water tank 19 falls below the set value, the hot water tank 19 automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops. When the drinking water temperature flowing out of the second hot water outlet 25 is lower than the minimum drinking water temperature (e.g., 95℃), that is, when the hot water provided by the hot water tank 19 cannot reach the required water temperature of the second hot water outlet 25 after two heating cycles, that is, when the water temperature in the hot water tank 19 is lower than the set temperature, the second hot water outlet 25 is closed, and the hot water three-way valve 29 is switched to connect the first hot water opening and the second hot water opening to reheat the water in the hot water tank 19 until the water temperature rises to the set temperature.

[0388] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 falls below the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops. When the drinking cold water temperature flowing out of the second cold water outlet 24 is higher than the maximum drinking cold water temperature (e.g., 5°C), that is, when the cold water provided by the cold water tank 22 cannot reach the required water temperature of the second cold water outlet 24 after two cooling cycles, that is, when the water temperature in the cold water tank 22 is higher than the set temperature, the second cold water outlet 24 is closed, and the first cold water opening of the cold water three-way valve 31 is connected to the second cold water opening to cool down the water in the cold water tank 22 again until the water temperature drops to the set temperature.

[0389] Example 14

[0390] In this embodiment, the integrated stove is in the fourteenth operating mode, which is used to provide air conditioning, store and provide first hot water and second cold water. For example, the first hot water is domestic hot water and the second cold water is drinking cold water. That is, the integrated stove acts as an air conditioner to provide air conditioning, as a water heater to provide domestic hot water and as a water chiller to provide drinking cold water.

[0391] Please see Figure 15 , Figure 15 This is a system structure diagram of the integrated stove provided in this application in its fourteenth operating mode. Figure 15 The medium gray line indicates that the area is not in operation.

[0392] In the fourteenth operating mode, the hot water pump 18 is on, the cold water pump 21 is on, the first hot water opening of the hot water three-way valve 29 is connected to the second hot water opening, the first cold water opening of the cold water three-way valve 31 is connected to the third cold water opening, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is in a fully open state, the cooling fan 8 is in a closed state, and the evaporator fan 11 is in a turned-on state.

[0393] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0394] The working principle of the integrated cooktop in its fourteenth operating mode, which provides air conditioning, domestic hot water, and drinking cold water, is as follows:

[0395] The system starts working when it is needed to provide cool air, store and provide domestic hot water (the water temperature in the hot water tank 19 is lower than the set value) and provide drinking cold water (the second cold water outlet 24 is opened).

[0396] When the system starts, compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn into the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant after the compressor 1 works. The high-temperature, high-pressure gaseous refrigerant flowing out from the output end of compressor 1 enters the refrigerant side of the second hot water heat exchanger 3 and then flows into the refrigerant side of the first hot water heat exchanger 4.

[0397] The second hot water heat exchanger 3 only serves as a refrigerant flow channel, where high-temperature, high-pressure gaseous refrigerant enters the refrigerant side of the first hot water heat exchanger 4. At the same time, the water in the hot water tank 19 is pumped out by the hot water pump 18, passes through the hot water pump 18, and then flows into the water side of the first hot water heat exchanger 4 to exchange heat with the high-temperature, high-pressure gaseous refrigerant in the first hot water heat exchanger 4. The tap water absorbs the heat from the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4, and the tap water temperature rises. The water with the increased temperature then flows into the first hot water opening of the hot water three-way valve 29, then flows out from the second hot water opening, and finally flows into the hot water tank 19.

[0398] High-temperature, high-pressure gaseous refrigerant enters the refrigerant side of the first hot water heat exchanger 4. Due to the absorption of heat by the tap water, the high-temperature, high-pressure gaseous refrigerant transforms into a medium-temperature, high-pressure gaseous refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the refrigerant side of the first hot water heat exchanger 4 then reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open and only serves as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the third expansion valve 6 then flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only serves as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 interacts with the refrigerant. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs heat from the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant in the low-pressure side to increase. At this time, the refrigerant flowing out from the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the second expansion valve 12 is in a throttling state, and the refrigerant can pass through the second expansion valve 12. The first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9. That is, the medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 flows through two separate paths.

[0399] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the evaporator 10 through the first expansion valve 9. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filtering out particulate impurities in the air. The indoor air is then blown through the evaporator 10 by the evaporator fan 11, exchanging heat with the low-temperature, low-pressure gas-liquid mixture in the evaporator 10. The refrigerant absorbs heat from the air, and the air releases heat, transforming into cold air which is then blown into the room, thus achieving indoor cooling.

[0400] The refrigerant passing through evaporator 10 absorbs heat from the air as a low-temperature, low-pressure gas-liquid mixture, causing its temperature to rise and transforming into a low-temperature, low-pressure gaseous refrigerant, while retaining a small amount of liquid refrigerant.

[0401] Under the throttling action of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture refrigerant. This low-temperature, low-pressure gas-liquid mixture refrigerant enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12. The low-temperature, low-pressure gas-liquid mixture refrigerant in the second cold water heat exchanger 13 exchanges heat with the water in the second cold water heat exchanger 13, that is, the low-temperature, low-pressure gas-liquid mixture refrigerant absorbs heat from the water, causing the water temperature to decrease. At this point, the temperature of the low-temperature, low-pressure gas-liquid mixture refrigerant rises for the first time. The low-temperature, low-pressure gas-liquid mixture of refrigerant, after being heated, flows out from the refrigerant side of the second cold water heat exchanger 13 and enters the refrigerant side of the first cold water heat exchanger 14. The low-temperature, low-pressure gas-liquid mixture of refrigerant in the first cold water heat exchanger 14 exchanges heat with the water in the water side of the first cold water heat exchanger 14, that is, it absorbs the heat of the water. The temperature of the low-temperature, low-pressure gas-liquid mixture of refrigerant rises again and becomes a low-temperature, low-pressure gaseous refrigerant. There may be a small amount of liquid refrigerant. It then flows out from the refrigerant side of the first cold water heat exchanger 14. At the same time, the cold water pump 21 starts working, drawing water from the cold water tank 22 and pumping it into the water side of the first cold water heat exchanger 14. Here, the water in the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant in the refrigerant side of the first cold water heat exchanger 14. The refrigerant absorbs heat from the water, causing the water temperature to drop. The cooled water then flows in through the first cold water opening of the cold water three-way valve 31 and flows out through the third cold water opening of the cold water three-way valve 31. After being filtered by the drinking water filter 23, the water flows into the water side of the second cold water heat exchanger 13. At this time, the water flowing into the water side of the second cold water heat exchanger 13 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of the refrigerant on the refrigerant side of the second cold water heat exchanger 13. The low-temperature, low-pressure gas-liquid mixture of the refrigerant absorbs the heat from the water, causing the water temperature to drop again, approaching the preset drinking water temperature (e.g., 0°C). The cold water flowing out from the outlet end of the water side of the second cold water heat exchanger 13 finally flows out from the second cold water outlet 24 for drinking.

[0402] Two streams of low-temperature, low-pressure gaseous refrigerant enter the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant then passes through the liquid receiver 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5, causing the temperature of the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 to rise. Finally, the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0403] This cycle continues, with the water in the hot water tank 19 being continuously heated. When the set temperature is reached, heating stops, and the tap water at the set temperature is stored in the hot water tank 19. When hot water is needed, the first hot water outlet 27 is opened, and hot water from the hot water tank 19 flows out. As water continuously flows out of the hot water tank 19, if the water level in the tank falls below the set value, the tank automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the tank reaches the set value, the automatic replenishment stops.

[0404] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 falls below the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops. When the drinking cold water temperature flowing out of the second cold water outlet 24 is higher than the preset maximum drinking cold water temperature (e.g., 5°C), that is, when the cold water provided by the cold water tank 22 cannot reach the required water temperature of the second cold water outlet 24 after two cooling cycles, that is, when the water temperature in the cold water tank 22 is higher than the set temperature, the second cold water outlet 24 is closed, and the first cold water opening of the cold water three-way valve 31 is connected to the second cold water opening to cool down the water in the cold water tank 22 again until the water temperature drops to the set temperature.

[0405] Example 15

[0406] In this embodiment, the integrated stove is in the fifteenth operating mode, which is used to store and provide first hot water and store and provide second cold water. For example, the first hot water is domestic hot water and the second cold water is drinking cold water. That is, the integrated stove acts as a water heater to provide domestic hot water and as a cold water heater to provide drinking cold water.

[0407] Please see Figure 16 , Figure 16 This is a system structure diagram of the integrated stove provided in this application under the fifteenth operating mode. Figure 16 The medium gray line indicates that the area is not in operation.

[0408] In the fifteenth operating mode, the hot water pump 18 is on, the cold water pump 21 is on, the first hot water opening of the hot water three-way valve 29 is connected to the second hot water opening, the first cold water opening of the cold water three-way valve 31 is connected to the third cold water opening, the first expansion valve 9 is closed, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is fully open, the cooling fan 8 is off, and the evaporator fan 11 is off.

[0409] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0410] The working principle of the integrated cooktop in its fifteenth operating mode, which provides domestic hot water and drinking cold water, is as follows:

[0411] The system starts working when it needs to store and provide domestic hot water (the water temperature in the hot water tank 19 is lower than the set value) and discard it to provide drinking cold water (the second cold water outlet 24 is opened).

[0412] When the system starts, compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn into the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant after the compressor 1 works. The high-temperature, high-pressure gaseous refrigerant flowing out from the output end of compressor 1 enters the refrigerant side of the second hot water heat exchanger 3 and then flows into the refrigerant side of the first hot water heat exchanger 4.

[0413] The refrigerant side of the second hot water heat exchanger 3 only serves as a flow channel for the refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the refrigerant side of the first hot water heat exchanger 4. At the same time, the water in the hot water tank 19 is pumped out by the hot water pump 18, passes through the hot water pump 18, and then flows into the water side of the first hot water heat exchanger 4 to exchange heat with the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4. The tap water absorbs the heat from the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4, and the tap water temperature rises. The water with the increased temperature then flows into the first hot water opening of the hot water three-way valve 29, then flows out from the second hot water opening, and finally flows into the hot water tank 19.

[0414] High-temperature, high-pressure gaseous refrigerant enters the refrigerant side of the first hot water heat exchanger 4. Due to the absorption of heat by the tap water, the high-temperature, high-pressure gaseous refrigerant becomes a medium-temperature, high-pressure gaseous refrigerant. It then reaches the third expansion valve 6, which is fully open and only serves as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the third expansion valve 6 flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only serves as a flow path for the refrigerant. The medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 then flows into the regenerator. On the high-pressure side of regenerator 5, the medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of regenerator 5. The low-temperature, low-pressure gaseous refrigerant on the low-pressure side of regenerator 5 absorbs the heat from the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side to increase. At this time, the refrigerant flowing out from the high-pressure side of regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of regenerator 5 then flows to the first expansion valve 9 and the second expansion valve 12.

[0415] At this time, the first expansion valve 9 is closed, and the refrigerant cannot pass through it. The second expansion valve 12 is in a throttling state, and the refrigerant can pass through it. Under the throttling effect of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12. The low-temperature, low-pressure gas-liquid mixture in the refrigerant side of the second cold water heat exchanger 13 exchanges heat with the water in the water side of the second cold water heat exchanger 13, that is, the low-temperature, low-pressure gas-liquid mixture absorbs heat from the water. The amount of refrigerant is increased, causing the water temperature to drop. At this point, the temperature of the low-temperature, low-pressure gas-liquid mixture refrigerant rises for the first time. The heated low-temperature, low-pressure gas-liquid mixture refrigerant flows out from the refrigerant side of the second cold water heat exchanger 13 and enters the refrigerant side of the first cold water heat exchanger 14. The low-temperature, low-pressure gas-liquid mixture refrigerant in the refrigerant side of the first cold water heat exchanger 14 exchanges heat with the water in the water side of the first cold water heat exchanger 14, that is, it absorbs the heat of the water. The temperature of the low-temperature, low-pressure gas-liquid mixture refrigerant rises again and becomes a low-temperature, low-pressure gaseous refrigerant. There may be a small amount of liquid refrigerant. It then flows out from the refrigerant side of the first cold water heat exchanger 14.

[0416] At the same time, the cold water pump 21 starts working, drawing water from the cold water tank 22 and sending it into the water side of the first cold water heat exchanger 14. At this point, the water entering the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of refrigerant on the refrigerant side of the first cold water heat exchanger 14. The refrigerant absorbs heat from the water, causing the water temperature to drop. The cooled water then flows in through the first cold water opening of the cold water three-way valve 31 and flows out through the third cold water opening of the cold water three-way valve 31. After being filtered by the drinking water filter 23, the water flows into the water side of the second cold water heat exchanger 13. At this time, the water flowing into the water side of the second cold water heat exchanger 13 exchanges heat with the low-temperature, low-pressure gas-liquid mixture of the refrigerant on the refrigerant side of the second cold water heat exchanger 13. The low-temperature, low-pressure gas-liquid mixture of the refrigerant absorbs the heat from the water, causing the water temperature to drop again, approaching the preset drinking water temperature (e.g., 0°C). The cold water flowing out from the outlet end of the water side of the second cold water heat exchanger 13 finally flows out from the second cold water outlet 24 for drinking.

[0417] The low-temperature, low-pressure refrigerant flowing out from the refrigerant side of the first cold water heat exchanger 14 enters the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant passes through the liquid receiver 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5, causing the temperature of the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 to rise. Finally, the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0418] This cycle continues, with the water in the hot water tank 19 being continuously heated. When the set temperature is reached, heating stops, and the tap water at the desired temperature is stored in the hot water tank 19. When hot water is needed, the first hot water outlet 27 is opened, and hot water from the hot water tank 19 flows out for use. As water continuously flows out of the hot water tank 19, if the water level falls below the set value, the hot water tank 19 is automatically replenished through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic replenishment stops.

[0419] When water continuously flows out of the cold water tank 22 and the water level in the cold water tank 22 falls below the set value, the cold water tank 22 is automatically replenished with water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, the automatic water replenishment stops. When the drinking cold water temperature flowing out of the second cold water outlet 24 is higher than the preset maximum drinking cold water temperature (e.g., 5°C), that is, when the cold water provided by the cold water tank 22 cannot reach the required water temperature of the second cold water outlet 24 after two cooling cycles, that is, when the water temperature in the cold water tank 22 is higher than the set temperature, the second cold water outlet 24 is closed, and the first cold water opening of the cold water three-way valve 31 is connected to the second cold water opening to cool down the water in the cold water tank 22 again until the water temperature drops to the set temperature.

[0420] Example 16

[0421] In this embodiment, the integrated stove is in the sixteenth operating mode, which is used to provide air conditioning, provide a second hot water, and store and provide a first cold water. For example, the second hot water is drinking hot water, and the first cold water is domestic cold water. That is, the integrated stove acts as an air conditioner to provide air conditioning, as a water heater to provide drinking hot water, and as a water chiller to provide domestic cold water.

[0422] Please see Figure 17 , Figure 17 This is a system structure diagram of the integrated stove provided in this application in its sixteenth operating mode. Figure 17 The medium gray line indicates that the area is not in operation.

[0423] In the sixteenth operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is on, the first hot water opening of hot water three-way valve 29 is connected to the third hot water opening, the first cold water opening of cold water three-way valve 31 is connected to the second cold water opening, the first expansion valve 9 is in a throttling state, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is in a fully open state, the cooling fan 8 is off, and the evaporator fan 11 is on.

[0424] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0425] The working principle of the integrated cooktop in its sixteenth operating mode, which provides air conditioning, drinking hot water, and domestic cold water, is as follows:

[0426] The system starts working when it is needed to provide cool air indoors, provide drinking hot water (the second hot water outlet 25 is opened), and store and provide domestic cold water (the water temperature in the cold water tank 22 is higher than the set value).

[0427] The system starts, and compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn in at the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the output end of compressor 1 enters the refrigerant side of the second hot water heat exchanger 3. The high-temperature, high-pressure gaseous refrigerant flowing into the refrigerant side of the second hot water heat exchanger 3 exchanges heat with the water on the water side of the second hot water heat exchanger 3, heating the water. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3 releases heat for the first time. Heat is released, and the temperature drops for the first time. The high-temperature, high-pressure gaseous refrigerant, after its temperature drops in the refrigerant side of the second hot water heat exchanger 3, flows back into the refrigerant side of the first hot water heat exchanger 4 and exchanges heat with the water in the water side of the second hot water heat exchanger 3 to heat the water. The refrigerant in the refrigerant side of the first hot water heat exchanger 4 releases heat for the second time, and the temperature drops for the second time. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4 gradually becomes a medium-temperature, high-pressure gaseous refrigerant and flows out from the refrigerant side of the first hot water heat exchanger 4.

[0428] At the same time, the hot water pump 18 operates, drawing out the hot water stored in the hot water tank 19. The hot water in the hot water tank 19 flows through the hot water pump 18 and then flows from the hot water pump 18 into the water side of the first hot water heat exchanger 4. At this time, the water in the water side of the first hot water heat exchanger 4 exchanges heat with the high-temperature and high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4. The water in the water side absorbs the heat from the refrigerant, and the water temperature rises. The heated water then flows out from the water side of the first hot water heat exchanger 4 and flows to the first hot water three-way valve 29. The hot water flows out from the third hot water outlet of the hot water three-way valve 29; the water flowing out from the third hot water outlet of the hot water three-way valve 29 flows through the drinking hot water filter 20, and then flows into the water side of the second hot water heat exchanger 3. The water in the water side of the second hot water heat exchanger 3 exchanges heat with the high temperature and high pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3, that is, the water is reheated and reaches the boiling state; the hot water flowing out from the outlet end of the water side of the second hot water heat exchanger 3 finally flows out from the second hot water outlet 25, and can be drunk.

[0429] The medium-temperature, high-pressure gaseous refrigerant flowing from the refrigerant side of the first hot water heat exchanger 4 reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open and only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing from the third expansion valve 6 then flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing from the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant absorbs heat from the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5, causing the temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 to decrease, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side to increase. At this time, the refrigerant flowing out from the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the second expansion valve 12 is in a throttling state, and the refrigerant can pass through the second expansion valve 12. The first expansion valve 9 is in a throttling state, and the refrigerant can pass through the first expansion valve 9. That is, the medium-temperature, high-pressure gaseous refrigerant flowing out from the outlet of the low-pressure side of the regenerator 5 flows through two separate paths.

[0430] Under the throttling action of the first expansion valve 9, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture. The low-temperature, low-pressure gas-liquid mixture enters the evaporator 10 through the first expansion valve 9. Under the action of the evaporator fan 11, the evaporator fan 11 draws indoor air from the air filter 33, filtering out particulate impurities in the air. The indoor air is then blown through the evaporator 10 by the evaporator fan 11, exchanging heat with the low-temperature, low-pressure gas-liquid mixture in the evaporator 10. The refrigerant absorbs heat from the air, and the air releases heat, transforming into cold air which is then blown into the room, thus achieving indoor cooling.

[0431] Under the throttling action of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture refrigerant. This low-temperature, low-pressure gas-liquid mixture refrigerant enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12, serving only as a refrigerant flow path. The low-temperature, low-pressure gas-liquid mixture refrigerant flowing out from the refrigerant side of the second cold water heat exchanger 13 enters the refrigerant side of the first cold water heat exchanger 14. Simultaneously, the cold water pump 21 is activated. Under the action of 21, the water in the cold water tank 22 is drawn out, flows through the cold water pump 21, and then flows from the cold water pump 21 into the water side of the first cold water heat exchanger 14; the water flowing into the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature, low-pressure gas-liquid mixture refrigerant in the refrigerant side of the first cold water heat exchanger 14, and the refrigerant absorbs the heat of the water, causing the water temperature to drop; the cooled tap water then flows to the first cold water opening of the cold water three-way valve 31, flows out from the second cold water opening of the cold water three-way valve 31, and then flows into the cold water tank 22.

[0432] The refrigerant passing through evaporator 10 absorbs heat from the air as a low-temperature, low-pressure gas-liquid mixture, causing its temperature to rise and transforming into a low-temperature, low-pressure gaseous refrigerant, while retaining a small amount of liquid refrigerant.

[0433] The refrigerant passing through the first hot water heat exchanger 4 absorbs heat from the tap water in the first cold water heat exchanger 14. The temperature of the refrigerant in the first cold water heat exchanger 14 rises and it transforms into a low-temperature, low-pressure gaseous refrigerant. A small amount of liquid refrigerant may also be present.

[0434] Two streams of low-temperature, low-pressure refrigerant enter the liquid receiver 15, where a small amount of liquid refrigerant is stored. The gaseous refrigerant passes through the liquid receiver 15 and enters the low-pressure side of the regenerator 5. The low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5, causing the temperature of the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 to rise. Finally, the low-pressure, low-temperature gaseous refrigerant on the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0435] When water continuously flows out of the hot water tank 19 and the water level in the hot water tank 19 falls below the set value, the hot water tank 19 automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops. When the drinking water temperature flowing out of the second hot water outlet 25 is lower than the preset minimum drinking water temperature (e.g., 95℃), that is, when the hot water provided by the hot water tank 19 cannot reach the required water temperature of the second hot water outlet 25 after two heating cycles, that is, when the water temperature in the hot water tank 19 is lower than the set temperature, the second hot water outlet 25 is closed, and the first hot water opening of the hot water three-way valve 29 is connected to the second hot water opening to reheat the water in the hot water tank 19 until the water temperature rises to the set temperature.

[0436] This cycle continues, allowing tap water to cool to a certain temperature and be stored in the cold water tank 22. When the set temperature is reached, cooling of the water in the cold water tank 22 stops. When domestic cold water is needed, the first cold water outlet 26 is opened, and cold water from the cold water tank 22 flows out for use. As water continuously flows out of the cold water tank 22, if the water level falls below the set value, the cold water tank 22 is automatically replenished through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, automatic water replenishment stops.

[0437] Example 17

[0438] In this embodiment, the integrated stove is in the seventeenth operating mode, which is used to provide a second hot water and store and provide a first cold water. For example, the second hot water is drinking hot water and the first cold water is domestic cold water. That is, the integrated stove acts as a water heater to provide drinking hot water and as a cold water heater to provide domestic cold water.

[0439] Please see Figure 18 , Figure 18 This is a system structure diagram of the integrated stove provided in this application under the seventeenth operating mode. Figure 18 The medium gray line indicates that the area is not in operation.

[0440] In the seventeenth operating mode, compressor 1 is on, hot water pump 18 is on, cold water pump 21 is on, the first hot water opening of hot water three-way valve 29 is connected to the third hot water opening, the first cold water opening of cold water three-way valve 31 is connected to the second cold water opening, the first expansion valve 9 is closed, the second expansion valve 12 is in a throttling state, the third expansion valve 6 is fully open, the cooling fan 8 is off, and the evaporator fan 11 is off.

[0441] The controller can be used to control the on / off / operating status switching of compressor 1, first expansion valve 9, second expansion valve 12, third expansion valve 6, hot water pump 18, cold water pump 21, hot water three-way valve 29, cold water three-way valve 31, cooling fan 8 and evaporator fan 11.

[0442] The working principle of the integrated cooktop in its seventeenth operating mode, which provides both drinking hot water and domestic cold water, is as follows:

[0443] The system starts working when it is needed to provide drinking hot water (the second hot water outlet 25 is opened), store and provide domestic cold water (the water temperature in the cold water tank 22 is higher than the set value).

[0444] The system starts, and compressor 1 begins to work. Low-pressure, low-temperature gaseous refrigerant is drawn in at the input end of compressor 1 and compressed into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant flowing out of the output end of compressor 1 flows into the refrigerant side of the second hot water heat exchanger 3. The high-temperature, high-pressure gaseous refrigerant flowing into the refrigerant side of the second hot water heat exchanger 3 exchanges heat with the water on the water side of the second hot water heat exchanger 3, heating the water. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the second hot water heat exchanger 3 releases heat for the first time. Heat is released, and the temperature drops for the first time. The high-temperature, high-pressure gaseous refrigerant, after its temperature drops in the refrigerant side of the second hot water heat exchanger 3, flows back into the refrigerant side of the first hot water heat exchanger 4 and exchanges heat with the water in the water side of the first hot water heat exchanger 4 to heat the water. The refrigerant in the refrigerant side of the first hot water heat exchanger 4 releases heat for the second time, and the temperature drops for the second time. At this time, the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the first hot water heat exchanger 4 gradually becomes a medium-temperature, high-pressure gaseous refrigerant and flows out from the refrigerant side of the first hot water heat exchanger 4.

[0445] Meanwhile, the hot water pump 18 operates, drawing hot water stored in the hot water tank 19. The hot water in the tank flows through the pump and then into the water side of the first hot water heat exchanger 4. At this time, the water in the first hot water heat exchanger 4 exchanges heat with the high-temperature, high-pressure gaseous refrigerant in the refrigerant side. The water absorbs heat from the refrigerant, and its temperature rises. The heated water then flows out of the first hot water heat exchanger 4 and into the first hot water opening of the hot water three-way valve 29. It then flows out from the third hot water opening of the valve and through the drinking water filter 20 before flowing into the water side of the second hot water heat exchanger 3. It exchanges heat with the high-temperature, high-pressure gaseous refrigerant in the refrigerant side of the second heat exchanger 3, thus reheating the water to boiling. The hot water flowing out from the outlet of the second hot water heat exchanger 3 finally flows out from the second hot water outlet 25 and is ready for drinking.

[0446] The medium-temperature, high-pressure gaseous refrigerant flowing from the refrigerant side of the first hot water heat exchanger 4 reaches the third expansion valve 6. At this time, the third expansion valve 6 is fully open and only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing out of the third expansion valve 6 then flows through the gas heat exchanger 7. At this time, the cooling fan 8 is not working, and the medium-temperature, high-pressure refrigerant in the gas heat exchanger 7 does not exchange heat; the gas heat exchanger 7 only acts as a refrigerant flow path. The medium-temperature, high-pressure gaseous refrigerant flowing out of the gas heat exchanger 7 then flows into the high-pressure side of the regenerator 5. The medium-temperature, high-pressure gaseous refrigerant entering the high-pressure side of the regenerator 5 exchanges heat with the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5. The low-temperature, low-pressure gaseous refrigerant in the low-pressure side of the regenerator 5 absorbs the heat from the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The temperature of the medium-temperature, high-pressure gaseous refrigerant on the high-pressure side of the regenerator 5 decreases, while the temperature of the low-temperature, low-pressure gaseous refrigerant on the low-pressure side of the regenerator 5 increases. At this time, the refrigerant flowing out from the high-pressure side of the regenerator 5 is still in a medium-temperature, high-pressure gaseous state. The medium-temperature, high-pressure gaseous refrigerant flowing out from the high-pressure side of the regenerator 5 then flows to the first expansion valve 9 and the second expansion valve 12. At this time, the first expansion valve 9 is closed, and the refrigerant cannot pass through the first expansion valve 9. The second expansion valve 12 is in a throttling state, and the refrigerant can pass through the second expansion valve 12. Under the throttling action of the second expansion valve 12, the medium-temperature, high-pressure gaseous refrigerant is transformed into a low-temperature, low-pressure gas-liquid mixture refrigerant. The low-temperature, low-pressure gas-liquid mixture refrigerant enters the refrigerant side of the second cold water heat exchanger 13 through the second expansion valve 12, and then enters the refrigerant side of the first cold water heat exchanger 14.

[0447] At the same time, the cold water pump 21 is turned on. Under the action of the cold water pump 21, the water in the cold water tank 22 is drawn out, flows through the cold water pump 21, and then flows from the cold water pump 21 into the water side of the first cold water heat exchanger 14. The water flowing into the water side of the first cold water heat exchanger 14 exchanges heat with the low-temperature and low-pressure gas-liquid mixture refrigerant in the refrigerant side of the first cold water heat exchanger 14. The refrigerant absorbs the heat of the water, causing the water temperature to drop. The cooled tap water then flows to the first cold water opening of the cold water three-way valve 31, flows out from the second cold water opening of the cold water three-way valve 31, and then flows into the cold water tank 22.

[0448] The refrigerant side of the second cold water heat exchanger 13 only serves as a refrigerant flow path. The low-temperature, low-pressure gas-liquid mixture of refrigerant in the refrigerant side of the first cold water heat exchanger 14 absorbs heat from the water in the water side of the first cold water heat exchanger 14, causing the refrigerant temperature in the refrigerant side of the first cold water heat exchanger 14 to rise and transform into a low-temperature, low-pressure gaseous refrigerant, possibly with a small amount of liquid refrigerant remaining. The low-temperature, low-pressure gaseous refrigerant flowing out from the refrigerant side of the first cold water heat exchanger 14 then enters... A small amount of liquid refrigerant is stored in the liquid receiver 15. Gaseous refrigerant enters the low-pressure side of the regenerator 5 through the liquid receiver 15. The low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 exchanges heat with the medium-temperature, high-pressure gaseous refrigerant in the high-pressure side of the regenerator 5. The temperature of the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 rises due to heat absorption. Finally, the low-pressure, low-temperature gaseous refrigerant in the low-pressure side of the regenerator 5 is drawn into the compressor 1 and enters the next cycle.

[0449] When water continuously flows out of the hot water tank 19 and the water level in the hot water tank 19 falls below the set value, the hot water tank 19 automatically replenishes water through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the hot water tank 19. When the water level in the hot water tank 19 reaches the set value, the automatic water replenishment stops. When the drinking hot water temperature flowing out of the second hot water outlet 25 is lower than 95℃, that is, when the hot water provided by the hot water tank 19 cannot reach the required water temperature of the second hot water outlet 25 after two heating cycles, that is, when the water temperature in the hot water tank 19 is lower than the set temperature, the second hot water outlet 25 is closed, and the first hot water opening of the hot water three-way valve 29 is connected to the second hot water opening to reheat the water in the hot water tank 19 until the water temperature rises to the set temperature.

[0450] This cycle continues, allowing tap water to cool to a certain temperature and be stored in the cold water tank 22. When the set temperature is reached, cooling of the water in the cold water tank 22 stops. When domestic cold water is needed, the first cold water outlet 26 is opened, and cold water from the cold water tank 22 flows out. As water continuously flows out of the cold water tank 22, and the water level falls below the set value, the cold water tank 22 is automatically replenished through the tap water inlet 30. The tap water is filtered by the pre-filter 17 before entering the cold water tank 22. When the water level in the cold water tank 22 reaches the set value, automatic water replenishment stops.

[0451] Example 18

[0452] In this embodiment, the integrated stove is in the eighteenth operating mode, which is used to provide filtered tap water.

[0453] Please see Figure 19 , Figure 19 This is a system structure diagram of Embodiment 18 provided in this application.

[0454] In the nineteenth operating mode, compressor 1 is off, hot water pump 18 is off, cold water pump 21 is off, first expansion valve 9 is closed, second expansion valve 12 is closed, third expansion valve 6 is closed, cooling fan 8 is off, and evaporator fan 11 is off.

[0455] When you need to use filtered tap water directly, open the filtered tap water outlet 28. The tap water from the tap water inlet 30 will be filtered by the pre-filter 17 and then flow out from the filtered tap water outlet 28, and you can use the filtered tap water.

[0456] Example 19

[0457] In this embodiment, the integrated stove is in the nineteenth operating mode, which is used to provide drinking sparkling water.

[0458] Please see Figure 20 , Figure 20 This is a system structure diagram of the integrated stove provided in this application in its nineteenth operating mode. Figure 20 The medium gray line indicates that the area is not in operation.

[0459] In the nineteenth operating mode, compressor 1 is in the off state, hot water pump 18 is in the off state, cold water pump 21 is in the on state, the first cold water opening and the third cold water opening of cold water three-way valve 31 are connected, the first expansion valve 9 is in the closed state, the second expansion valve 12 is in the closed state, the third expansion valve 6 is in the closed state, the cooling fan 8 is in the off state, and the evaporator fan 11 is in the off state.

[0460] When sparkling water is needed, the sparkling water outlet 34 is opened, and the cold water pump 21 is turned on. Under the action of the cold water pump 21, the cold water in the cold water tank 22 is drawn out, flows through the cold water pump 21, and then flows from the cold water pump 21 into the water side of the first cold water heat exchanger 14. It then flows out from the water side of the first cold water heat exchanger 14 and into the first cold water opening of the cold water three-way valve 31. After flowing out from the third cold water opening of the cold water three-way valve 31, it is filtered by the drinking cold water filter 23 and flows into the water side of the second cold water heat exchanger 13. It then flows out from the water side of the second cold water heat exchanger 13 and into the sparkling water machine 32. The sparkling water machine 32 pressurizes the drinking water and injects carbon dioxide gas to turn it into an aqueous solution with bubbles, which then flows out from the sparkling water outlet 34 for drinking.

[0461] It is understandable that the sparkling water for drinking is pumped out from the cold water tank 22 by the cold water pump 21, and the temperature of the sparkling water is determined by the temperature of the cold water in the cold water tank 22. Users can choose to drink room temperature sparkling water, meaning the compressor 1 is not started and the tap water in the cold water tank 22 is not cooled; or they can start the compressor 1 to cool the tap water in the cold water tank 22. Since the sparkling water flows out of the cold water tank 22, the second cold water heat exchanger 13 can further cool the cold water that flows out of the cold water tank 22 and has been filtered by the drinking cold water filter 23. In other words, when cold sparkling water with a lower drinking temperature is needed, the difference from Embodiment 5 of this application is that the flow direction of the water outlet of the second cold water heat exchanger 13 is different. When the cold water flowing out of the water outlet of the second cold water heat exchanger 13 flows directly to the second cold water outlet 24, the integrated stove provides ordinary drinking cold water. When the cold water flowing out of the water outlet of the second cold water heat exchanger 13 flows to the sparkling water machine 32 and flows out from the sparkling water outlet 34, the integrated stove provides cold sparkling water.

[0462] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0463] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An integrated stove, characterized in that, The integrated stove includes a refrigerant circulation system and a water system, the water system including a first water channel and a second water channel, and the refrigerant circulation system including: First refrigerant pipe; The compressor has its input end connected to the first end of the first refrigerant pipe; The first heat exchange component has its input end connected to the output end of the compressor and is used to exchange heat with the liquid in the first water circuit. The second refrigerant pipe has its first end connected to the output end of the first heat exchange component; An evaporator, wherein the input end of the evaporator is connected to the second end of the second refrigerant pipe, and the output end of the evaporator is connected to the second end of the first refrigerant pipe; The second heat exchange component has its input end connected to the second end of the second refrigerant pipe and its output end connected to the second end of the first refrigerant pipe. The second heat exchange component is used to exchange heat with the liquid in the second water circuit. The valve assembly is configured to connect at least one of the evaporator and the second heat exchange assembly to the second end of the second refrigerant pipe.

2. The integrated stove according to claim 1, characterized in that: The valve assembly includes: A first expansion valve, the first end of which is connected to the second end of the second refrigerant pipe, and the second end of which is connected to the input end of the evaporator; The second expansion valve has its first end connected to the second end of the second refrigerant pipe and its second end connected to the input end of the second heat exchange assembly.

3. The integrated stove according to claim 2, characterized in that: The valve assembly also includes: A third expansion valve is arranged on the second refrigerant pipe. The first end of the third expansion valve is connected to the output end of the first heat exchange component. The input end of the evaporator and the input end of the second heat exchange component are respectively connected to the second end of the third expansion valve.

4. The integrated stove according to claim 3, characterized in that: The integrated stove also includes: A gas heat exchanger is arranged on a second refrigerant pipe. The input end of the gas heat exchanger is connected to the second end of the third expansion valve. The input end of the evaporator and the input end of the second heat exchange assembly are respectively connected to the output end of the gas heat exchanger.

5. The integrated stove according to claim 4, characterized in that: The integrated stove also includes: The regenerator has its output end connected to the inlet of the high-pressure side of the gas heat exchanger, its input end of the evaporator and the input end of the second heat exchange component connected to the outlet of the high-pressure side of the regenerator, its input end of the compressor connected to the outlet of the low-pressure side of the regenerator, and its output end of the evaporator and the output end of the second heat exchange component connected to the outlet of the low-pressure side of the regenerator.

6. The integrated stove according to claim 5, characterized in that: The first heat exchange assembly includes a first hot water heat exchanger and a second hot water heat exchanger. The input end of the second hot water heat exchanger is connected to the output end of the compressor, the output end of the second hot water heat exchanger is connected to the input end of the first hot water heat exchanger, and the output end of the first hot water heat exchanger is connected to the first end of the third expansion valve. The first water circuit includes a hot water tank, a hot water pump, and a hot water three-way valve. The hot water tank is provided with a first hot water outlet. The outlet of the hot water tank is connected to the inlet of the first hot water heat exchanger through the hot water pump. The first hot water opening of the hot water three-way valve is connected to the outlet of the first hot water heat exchanger. The second hot water opening of the hot water three-way valve is connected to the inlet of the hot water tank. The third hot water opening of the hot water three-way valve is connected to the inlet of the second hot water heat exchanger. The outlet of the second hot water heat exchanger is connected to a second hot water outlet.

7. The integrated stove according to claim 6, characterized in that: The second heat exchange assembly includes a first cold water heat exchanger and a second cold water heat exchanger. The input end of the second cold water heat exchanger is connected to the second end of the second expansion valve, the output end of the second cold water heat exchanger is connected to the input end of the first cold water heat exchanger, and the output end of the first cold water heat exchanger is connected to the inlet of the low-pressure side of the regenerator. The second water circuit includes a cold water tank, a cold water pump, and a cold water three-way valve. The cold water tank is provided with a first cold water outlet. The outlet of the cold water tank is connected to the inlet of the first cold water heat exchanger through the cold water pump. The first cold water opening of the cold water three-way valve is connected to the outlet of the first cold water heat exchanger. The second cold water opening of the cold water three-way valve is connected to the inlet of the cold water tank. The third cold water opening of the cold water three-way valve is connected to the inlet of the second cold water heat exchanger. The outlet of the second cold water heat exchanger is connected to a second cold water outlet.

8. The integrated stove according to claim 7, characterized in that: The integrated stove has a first side and a second side, wherein the first hot water outlet and the first cold water outlet are both located on the first side of the integrated stove, and the second hot water outlet and the second cold water outlet are both located on the second side of the integrated stove.

9. The integrated stove according to claim 7, characterized in that: The integrated stove also includes: A cooling fan is arranged on one side of the gas heat exchanger to blow indoor ambient air toward the gas heat exchanger to cool the indoor ambient air. An evaporator fan, located on one side of the evaporator, is used to blow indoor ambient air toward the evaporator to cool or heat the refrigerant flowing inside the evaporator.

10. The integrated stove according to claim 7, characterized in that: The integrated stove also includes: The outlet of the second cold water heat exchanger is selectively connected to the bubble water machine and the second cold water outlet.

11. The integrated stove according to claim 9, characterized in that: The integrated stove includes a first operating mode, in which: The hot water pump and the cold water pump are in the off state, the first expansion valve is in the throttling state, the second expansion valve is in the closed state, the third expansion valve is in the fully open state, and the cooling fan and the evaporator fan are in the on state.

12. The integrated stove according to claim 9, characterized in that: The integrated stove includes a second operating mode and a third operating mode, wherein in the second operating mode and the third operating mode: The hot water pump is in the on state, the cold water pump is in the off state, the first expansion valve is in the fully open state, the second expansion valve is in the closed state, the third expansion valve is in the throttling state, the cooling fan is in the on state, and the evaporator fan is in the off state; In the second operating mode, the first hot water opening of the hot water three-way valve is connected to the second hot water opening; In the third operating mode, the first hot water opening of the hot water three-way valve is connected to the third hot water opening.

13. The integrated stove according to claim 9, characterized in that: The integrated stove includes a fourth operating mode and a fifth operating mode, wherein in the fourth operating mode and the fifth operating mode: The hot water pump is in the off state, the cold water pump is in the on state, the first expansion valve is in the closed state, the second expansion valve is in the throttling state, the third expansion valve is in the fully open state, the cooling fan is in the on state, and the evaporator fan is in the off state. In the fourth operating mode, the first cold water opening of the cold water three-way valve is connected to the second cold water opening; In the fifth operating mode, the first cold water opening of the cold water three-way valve is connected to the third cold water opening.

14. The integrated stove according to claim 9, characterized in that: The integrated stove includes a sixth operating mode and a seventh operating mode, wherein in the sixth operating mode and the seventh operating mode: The hot water pump is in the on state, the cold water pump is in the off state, the first expansion valve is in the throttling state, the second expansion valve is in the closed state, the third expansion valve is in the fully open state, the cooling fan is in the off state, and the evaporator fan is in the on state; In the sixth operating mode, the first hot water opening of the hot water three-way valve is connected to the second hot water opening; In the seventh operating mode, the first hot water opening of the hot water three-way valve is connected to the third hot water opening.

15. The integrated stove according to claim 9, characterized in that: The integrated stove includes an eighth operating mode and a ninth operating mode, wherein the eighth operating mode and the ninth operating mode The hot water pump is in the off state, the cold water pump is in the on state, the first expansion valve is in the throttling state, the second expansion valve is in the throttling state, the third expansion valve is in the fully open state, the cooling fan is in the on state, and the evaporator fan is in the on state. In the eighth operating mode, the first cold water opening of the cold water three-way valve is connected to the second cold water opening; In the ninth operating mode, the first cold water opening of the cold water three-way valve is connected to the third cold water opening.

16. The integrated stove according to claim 9, characterized in that: The integrated stove includes a tenth operating mode, a thirteenth operating mode, a fifteenth operating mode, and a seventeenth operating mode. Under the tenth operating mode, the thirteenth operating mode, the fifteenth operating mode, and the seventeenth operating mode: The hot water pump is in the on state, the cold water pump is in the on state, the first expansion valve is in the closed state, the second expansion valve is in the throttling state, the third expansion valve is in the fully open state, the cooling fan is in the off state, and the evaporator fan is in the off state. In the tenth operating mode, the first hot water opening of the hot water three-way valve is connected to the second hot water opening, and the first cold water opening of the cold water three-way valve is connected to the second cold water opening. In the thirteenth operating mode, the first hot water opening of the hot water three-way valve is connected to the third hot water opening, and the first cold water opening of the cold water three-way valve is connected to the third cold water opening. In the fifteenth operating mode, the first hot water opening of the hot water three-way valve is connected to the second hot water opening, and the first cold water opening of the cold water three-way valve is connected to the third cold water opening. In the seventeenth operating mode, the first hot water opening of the hot water three-way valve is connected to the third hot water opening, and the first cold water opening of the cold water three-way valve is connected to the second cold water opening.

17. The integrated stove according to claim 9, characterized in that: The integrated stove includes an eleventh operating mode, a twelfth operating mode, a fourteenth operating mode, and a sixteenth operating mode. Under the eleventh, twelfth, fourteenth, and sixteenth operating modes: The hot water pump is in the on state, the cold water pump is in the on state, the first expansion valve is in the throttling state, the second expansion valve is in the throttling state, the third expansion valve is in the fully open state, the cooling fan is in the off state, and the evaporator fan is in the on state; In the eleventh operating mode, the first hot water opening of the hot water three-way valve is connected to the second hot water opening, and the first cold water opening of the cold water three-way valve is connected to the second cold water opening. In the twelfth operating mode, the first hot water opening of the hot water three-way valve is connected to the third hot water opening, and the first cold water opening of the cold water three-way valve is connected to the third cold water opening. In the fourteenth operating mode, the first hot water opening of the hot water three-way valve is connected to the second hot water opening, and the first cold water opening of the cold water three-way valve is connected to the third cold water opening. In the sixteenth operating mode, the first hot water opening of the hot water three-way valve is connected to the third hot water opening, and the first cold water opening of the cold water three-way valve is connected to the second cold water opening.

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