Water-fluorine interconnection machine for supplying cold and hot water and domestic hot water

Abstract

The invention relates to the technical field of air conditioners, and discloses a water-fluorine interconnection machine for supplying cold, hot and domestic hot water, which comprises one or more air conditioning units, a first circulation loop, a second circulation loop, a third circulation loop, a heat exchange device and a hot water unit. The air conditioning unit comprises a first auxiliary heat exchanger, an outdoor heat exchanger and at least one indoor heat exchanger. A first throttling device is arranged on one side of a first medium channel of the first auxiliary heat exchanger, and a second throttling device is arranged on one side of a first medium channel of the indoor heat exchanger. A first valve is arranged on one side of the second medium channel of the outdoor heat exchanger, and a second valve is arranged on one side of the second medium channel of the first auxiliary heat exchanger. Therefore, various functional modes are achieved by controlling the states of the first water pump, the first throttling device, the second throttling device, the first valve and the second valve. And efficient hot water supply all the year round is achieved while the cold and warm requirements of a user are met through one system.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, for example, to a water-fluorine interconnecting machine for supplying cold, hot and domestic hot water. Background Art

[0003] The related technology discloses a trigeneration system, which includes a refrigerant pipeline, a floor heating pipeline, a domestic water pipeline, a fluorine water heat exchanger and a water heat exchanger. The floor heating pipeline is a closed pipeline. The refrigerant pipeline exchanges heat with the floor heating pipeline through the fluorine water heat exchanger. The domestic water pipeline exchanges heat with the floor heating pipeline through the water heat exchanger. The domestic water pipeline is used to provide domestic water to users.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] When producing domestic hot water, the heat produced by the heat pump unit needs to be exchanged twice through the fluorine-water heat exchanger and the water-water heat exchanger, resulting in energy quality loss and reducing the efficiency of hot water production. In addition, in order to meet the needs of combined supply of building cooling and heating and domestic hot water, the system uses too many heat exchangers and related valve components, making the control complex. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiment provides a water-fluorine interconnected machine for supplying cold and hot water and domestic hot water, which solves the problem of achieving efficient hot water supply while meeting the user's heating and cooling needs.

[0008] In some embodiments, the water-fluorine interconnection machine for supplying hot and cold water and domestic hot water comprises:

[0009] One or more air conditioning units, the air conditioning units comprising a first auxiliary heat exchanger, an outdoor heat exchanger and at least one indoor heat exchanger, wherein the first auxiliary heat exchanger is a two-medium heat exchanger, and the outdoor heat exchanger and the indoor heat exchanger are both three-medium heat exchangers;

[0010] A first circulation loop, each of the air-conditioning units has one first circulation loop, and the plurality of first circulation loops are independent of each other; the first medium channel of the outdoor heat exchanger and the first medium channel of the indoor heat exchanger are connected in series and are connected to the first circulation loop, and the first medium channel of the first auxiliary heat exchanger and the first medium channel of the indoor heat exchanger are connected in parallel and are connected to the first circulation loop; and a first throttling device is provided on one side of the first medium channel of the first auxiliary heat exchanger, and a second throttling device is provided on one side of the first medium channel of the indoor heat exchanger;

[0011] A second circulation loop, each of the air conditioning units has a second circulation loop, and a plurality of the second circulation loops are connected; the second medium channel of the first auxiliary heat exchanger and the second medium channel of the outdoor heat exchanger are connected in parallel and connected to the second circulation loop;

[0012] A hot water unit, comprising a first water pump and a collecting device; the first water pump supplies low-temperature water to the second circulation loop, the collecting device recovers high-temperature water after heat exchange in the second circulation loop, and the high-temperature water can be supplied to the outside;

[0013] Among them, a first valve is provided on one side of the second medium channel of the outdoor heat exchanger, and a second valve is provided on one side of the second medium channel of the first auxiliary heat exchanger, so that multiple functional modes can be realized by controlling the states of the first water pump, the first throttling device, the second throttling device, the first valve and the second valve.

[0014] Optionally, the collecting device comprises:

[0015] A hot water collection tank, to which the outflow side of the second medium channel of the outdoor heat exchanger and the outflow side of the second medium channel of the first auxiliary heat exchanger are connected; and the hot water collection tank supplies hot water to the outside through a supply pipeline.

[0016] Optionally, the hot water collection tank is connected to the water inlet end of the first water pump through a reheating pipeline, so that the water in the hot water collection tank can enter the second circulation loop through the first water pump.

[0017] Optionally, the water-fluorine interconnection machine for supplying cold, hot and domestic hot water also includes:

[0018] A third circulation loop, wherein the second medium channel of the indoor heat exchanger is connected to the third circulation loop, and the second medium channels of the plurality of indoor heat exchangers are connected in parallel; and a second water pump is provided on the third circulation loop;

[0019] The heat exchange device is connected to the third circulation loop and is in series with the second medium channel of the indoor heat exchanger, and an eighth valve is provided on one side of the heat exchange device.

[0020] Optionally, the heat exchange device includes a ceiling heat radiator, a wall heat radiator, a floor heat radiator or a liquid heat storage device.

[0021] Optionally, the water-fluorine interconnection machine for supplying cold, hot and domestic hot water also includes:

[0022] The second auxiliary heat exchanger is constructed as a dual-medium heat exchanger, wherein the first medium channel thereof is connected to the first circulation loop and is in series with the first medium channel of the first auxiliary heat exchanger; the second medium channel thereof is connected to the second circulation loop and is in series with the second medium channel of the first auxiliary heat exchanger;

[0023] A third valve is provided on one side of the first medium channel of the second auxiliary heat exchanger;

[0024] Both ends of the first medium channel of the second auxiliary heat exchanger are connected with a bypass branch, and a fourth valve is provided on the bypass branch.

[0025] Optionally, the water-fluorine interconnection machine for supplying cold, hot and domestic hot water has a cold supply and hot water supply mode, and the cold supply and hot water supply mode corresponds to the first circulation loop running a refrigeration cycle, the first water pump is turned on, the first valve and the fourth valve are opened, the second valve and the third valve are closed, the first throttling device is closed, and the second throttling device is opened.

[0026] Optionally, the water-fluorine interconnected machine for supplying hot and cold and domestic hot water has a heating and hot water supply mode, and the heating and hot water supply mode corresponds to the first circulation loop running a heating cycle, the first water pump is turned on, the second valve and the third valve are opened, the first valve and the fourth valve are closed, the first throttling device is opened, and the second throttling device is opened.

[0027] Optionally, when the water-fluorine interconnected machine for supplying cold, hot and domestic hot water operates in a heating and hot water supply mode, it also includes: the second water pump is turned on, and the eighth valve corresponding to the heat exchange device required for heating is opened.

[0028] Optionally, the water-fluorine interconnection machine for supplying cold, hot and domestic hot water has a separate hot water supply mode, and the separate hot water supply mode corresponds to the first circulation loop running a heating cycle, the first water pump is turned on, the second valve and the third valve are opened, the first valve and the fourth valve are closed, the first throttling device is opened, and multiple second throttling devices are closed.

[0029] The water-fluorine interconnection machine for supplying cold, hot and domestic hot water provided in the embodiments of the present disclosure can achieve the following technical effects:

[0030] Through a set of systems, the user's heating and cooling needs are guaranteed while achieving efficient hot water supply throughout the year. In addition, the water-fluorine interconnection machine for supplying heating, cooling and domestic hot water involves a small number of devices and valves, the overall system is simple and reliable, and the control of various functional modes is simple.

[0031] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0033] Figure 1 It is a schematic diagram of the structure of a water-fluorine interconnection machine for supplying cold, hot and domestic hot water provided by an embodiment of the present disclosure;

[0034] Figure 2 It is a schematic diagram of the structure of a water-fluorine interconnection machine for supplying cold, hot and domestic hot water with multiple indoor heat exchangers provided in an embodiment of the present disclosure;

[0035] Figure 3 It is a schematic diagram of the structure of a water-fluorine interconnection machine for supplying cold, hot and domestic hot water with multiple air-conditioning units provided in an embodiment of the present disclosure;

[0036] Figure 4 It is a schematic diagram of a cooling and hot water supply mode of a water-fluorine interconnected machine for supplying cooling, heating and domestic hot water provided in an embodiment of the present disclosure;

[0037] Figure 5 It is a schematic diagram of the heating and hot water supply mode of the water-fluorine interconnection machine for supplying cold, hot and domestic hot water provided by an embodiment of the present disclosure;

[0038] Figure 6 It is a schematic diagram of a separate hot water supply mode of a water-fluorine interconnected machine for supplying cold, hot and domestic hot water provided in an embodiment of the present disclosure.

[0039] Reference numerals:

[0040] 1: compressor; 2: four-way reversing valve; 3: indoor heat exchanger; 3.1: second throttling device; 3.2: seventh valve; 4: heat exchange device; 4.1: eighth valve; 5.1: first water pump; 5.2: second water pump; 6: outdoor heat exchanger; 6.1: first valve; 7: water supply device; 7.1: fifth valve; 7.2: sixth valve; 8: first auxiliary heat exchanger; 8.1: first throttling device; 8.2: second valve; 9: second auxiliary heat exchanger; 9.1: fourth valve; 9.2: third valve; 10: collecting device; 100: air conditioning unit; 101: first medium channel; 102: second medium channel; 103: radiant heat channel; 104: first air channel; 105: second air channel; 200: hot water unit; 300: first circulation loop; 301: bypass branch; 400: second circulation loop; 500: third circulation loop. DETAILED DESCRIPTION

[0041] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0042] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0044] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] Unless otherwise stated, the term "plurality" means two or more.

[0046] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0047] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0049] Combination Figure 1-6 As shown, the embodiment of the present disclosure provides a water-fluorine interconnection machine for supplying cold and hot water and domestic hot water, including one or more air conditioning units 100, a hot water unit 200, a first circulation loop 300, a second circulation loop 400 and a heat exchange device 4. The air conditioning unit 100 includes a first auxiliary heat exchanger 8, an outdoor heat exchanger 6 and at least one indoor heat exchanger 3, and the first auxiliary heat exchanger 8 is a dual-medium heat exchanger, and the outdoor heat exchanger 6 and the indoor heat exchanger 3 are both three-medium heat exchangers; each air conditioning unit 100 has a first circulation loop 300, and multiple first circulation loops 300 are independent, such as Figure 3 As shown; the first medium channel 101 of the outdoor heat exchanger 6 and the first medium channel 101 of the indoor heat exchanger 3 are connected in series and connected to the first circulation loop 300, and the first medium channel 101 of the first auxiliary heat exchanger 8 and the first medium channel 101 of the indoor heat exchanger 3 are connected in parallel and connected to the first circulation loop 300; and a first throttling device 8.1 is provided on one side of the first medium channel 101 of the first auxiliary heat exchanger 8, and a second throttling device 3.1 is provided on one side of the first medium channel 101 of the indoor heat exchanger 3; each air conditioning unit 100 has a second circulation loop 400, and multiple second circulation loops 400 are connected, as shown in FIG. Figure 3As shown; the second medium channel 102 of the first auxiliary heat exchanger 8 and the second medium channel 102 of the outdoor heat exchanger 6 are connected in parallel and connected to the second circulation loop 400; the hot water unit 200 includes a first water pump 5.1 and a collecting device 10; the low-temperature water source is supplied to the second circulation loop 400 by the first water pump 5.1, and the high-temperature water source after heat exchange in the second circulation loop 400 is recovered by the collecting device 10, and the high-temperature water source can be supplied to the outside; wherein, a first valve 6.1 is provided on one side of the second medium channel 102 of the outdoor heat exchanger 6, and a second valve 8.2 is provided on one side of the second medium channel 102 of the first auxiliary heat exchanger 8, so that a variety of functional modes can be realized by controlling the states of the first water pump 5.1, the first throttling device 8.1, the second throttling device 3.1, the first valve 6.1 and the second valve 8.2.

[0050] The water-fluorine interconnection machine for supplying hot and cold water and domestic hot water provided by the embodiment of the present disclosure can realize efficient hot water supply throughout the year while ensuring the heating and cooling needs of users through a set of systems. In addition, the water-fluorine interconnection machine involves a small number of devices and valves, the overall system is simple and highly reliable, and the control of various functional modes is simple.

[0051] Optionally, the circulating medium in the first circulation loop 300 includes a refrigerant. In the water-fluorine interconnected machine provided in the embodiment of the present disclosure, a compressor 1 and a four-way reversing valve 2 are also provided in the first circulation loop 300. The compressor 1 is used to drive the flow of the refrigerant in the first circulation loop 300, and the four-way reversing valve 2 is used to switch the flow direction of the refrigerant in the first circulation loop 300 so as to realize the first circulation loop 300 to run a heating cycle or a refrigeration cycle. The first throttling device 8.1 and the second throttling device 3.1 are both expansion valves, and the expansion valve is used to throttle and reduce the pressure of the refrigerant flowing through. Among them, when the first circulation loop 300 runs a heating cycle, the flow direction of its refrigerant is the compressor 1, the four-way reversing valve 2, the indoor heat exchanger 3 and the first auxiliary heat exchanger 8, the outdoor heat exchanger 6 and the compressor 1. When the first circulation loop 300 runs a refrigeration cycle, the flow direction of its refrigerant is the compressor 1, the four-way reversing valve 2, the outdoor heat exchanger 6, the indoor heat exchanger 3 and the first auxiliary heat exchanger 8, and the compressor 1.

[0052] Optionally, the collecting device 10 includes a hot water collecting tank. The outflow side of the second medium channel 102 of the outdoor heat exchanger 6 and the outflow side of the second medium channel 102 of the first auxiliary heat exchanger 8 are connected to the hot water collecting tank; and the hot water collecting tank supplies hot water to the outside through a supply pipeline.

[0053] In this embodiment, the first valve 6.1 is arranged on the outflow side of the second medium channel 102 of the outdoor heat exchanger 6, and the second valve 8.2 is arranged on the outflow side of the second medium channel 102 of the first auxiliary heat exchanger 8. The water supply device 7, such as municipal water supply, is connected to the water inlet end of the first water pump 5.1 through the water inlet pipeline, and the fifth valve 7.1 is arranged on the water inlet pipeline. After the fifth valve 7.1 is opened, the first water pump 5.1 can supply a low-temperature water source to the second circulation loop 400, and the low-temperature water source exchanges heat with the first medium channel 101 of the outdoor heat exchanger 6 in the second medium channel 102 of the outdoor heat exchanger 6 to become hot water. Alternatively, the low-temperature water source exchanges heat with the first medium channel 101 of the first auxiliary heat exchanger 8 in the second medium channel 102 of the first auxiliary heat exchanger 8 to become hot water. Then the hot water flows into the hot water collection tank, and finally supplies domestic hot water to the outside through the supply pipeline.

[0054] Optionally, the hot water collection tank is connected to the water inlet of the first water pump 5.1 through a reheating pipeline, so that the water in the hot water collection tank can enter the second circulation loop 400 through the first water pump 5.1.

[0055] In this embodiment, the water outlet of the reheating pipeline is connected to the water inlet pipeline, and the sixth valve 7.2 is provided on the reheating pipeline. After the sixth valve 7.2 is opened, the hot water in the hot water collection tank flows into the water inlet pipeline, and then enters the second circulation loop 400 through the first water pump 5.1 to be heated again. In addition, when the fifth valve 7.1 and the sixth valve 7.2 are opened at the same time, the low-temperature water source of the water supply device 7 and the hot water in the hot water collection tank are mixed in the water inlet pipeline.

[0056] For example, when the hot water temperature in the hot water collection tank is lower than the water supply demand, the sixth valve 7.2 is opened and the fifth valve 7.1 is closed. Only the water in the hot water collection tank is supplied to the second circulation loop 400 through the circulating water pump and then circulated and heated multiple times. When the hot water temperature in the hot water collection tank meets the water supply demand, hot water is supplied to the outside through the water supply pipeline.

[0057] In another exemplary embodiment, when the hot water storage in the hot water collection tank is greater than the water supply demand, the fifth valve 7.1 and the sixth valve 7.2 are opened simultaneously to mix the hot water and the low-temperature water source, and then the mixed water is supplied to the second circulation loop 400 for heating through the first water pump 5.1. In this way, the heating time of the low-temperature water source in the second circulation loop 400 is shortened, and the energy efficiency of the water-fluorine interconnection machine in supplying hot water is improved.

[0058] Optionally, the water-fluorine interconnection machine further includes a second auxiliary heat exchanger 9. The second auxiliary heat exchanger 9 is constructed as a dual-medium heat exchanger, wherein the first medium channel 101 thereof is connected to the first circulation loop 300 and is in series with the first medium channel 101 of the first auxiliary heat exchanger 8; and the second medium channel 102 thereof is connected to the second circulation loop 400 and is in series with the second medium channel 102 of the first auxiliary heat exchanger 8.

[0059] In this embodiment, when the first circulation loop 300 runs a heating cycle, high-temperature refrigerant flows in the first medium channel 101 of the second auxiliary heat exchanger 9 and the first medium channel 101 of the first auxiliary heat exchanger 8. The low-temperature water source in the second circulation loop 400 exchanges heat with the first medium channel 101 of the first auxiliary heat exchanger 8 for the first time when flowing through the second medium channel 102 of the first auxiliary heat exchanger 8, and then exchanges heat with the first medium channel 101 of the second auxiliary heat exchanger 9 again when flowing through the second medium channel 102 of the second auxiliary heat exchanger 9. In this embodiment, the second auxiliary heat exchanger 9 is close to the outlet of the compressor 1. If only the exhaust sensible heat of the compressor 1 is used to heat the water in the second circulation loop 400, it is difficult to heat it to about 50°C. At the same time, if only the condensation heat at the first auxiliary heat exchanger 8 is used, it is also difficult to heat the water in the second circulation loop 400 to about 50°C. Therefore, the two heatings in this embodiment can heat the low-temperature water source to about 50°C.

[0060] Optionally, the second valve 8.2 is arranged at the outflow side of the second medium channel 102 of the second auxiliary heat exchanger 9. When the second valve 8.2 is opened, the water heated in the second medium channel 102 of the first auxiliary heat exchanger 8 and the second medium channel 102 of the second auxiliary heat exchanger 9 flows to the hot water collection tank.

[0061] Optionally, a third valve 9.2 is provided on one side of the first medium channel 101 of the second auxiliary heat exchanger 9; both ends of the first medium channel 101 of the second auxiliary heat exchanger 9 are connected with a bypass branch 301, and a fourth valve 9.1 is provided on the bypass branch 301.

[0062] In this embodiment, the third valve 9.2 can be arranged at the inflow side or the outflow side of the first medium channel 101 of the second auxiliary heat exchanger 9. In addition, when the third valve 9.2 is closed and the fourth valve 9.1 is opened, the bypass branch 301 bypasses the first medium channel 101 of the second auxiliary heat exchanger 9, and the bypass branch 301 and the first medium channel 101 of the first auxiliary heat exchanger 8 are connected in series.

[0063] Alternatively, if Figure 1 As shown, the third medium channel of the outdoor heat exchanger 6 is the first air channel 104, and the air is made to flow through the first air channel 104 through the outdoor fan to exchange heat with the first medium channel 101 of the outdoor heat exchanger 6 and / or the second medium channel 102 of the outdoor heat exchanger 6; the third medium channel of the indoor heat exchanger 3 is the second air channel 105, and the air is made to flow through the second air channel 105 through the indoor fan to exchange heat with the first medium channel 101 of the indoor heat exchanger 3 and / or the second medium channel 102 of the indoor heat exchanger 3.

[0064] In this embodiment, when the outdoor fan is started, the outdoor air flows through the first air channel 104, thereby exchanging heat with the first medium channel 101 and / or the second medium channel 102 of the outdoor heat exchanger 6. When the indoor fan is started, the indoor air flows through the second air channel 105, thereby exchanging heat with the first medium channel 101 and / or the second medium channel 102 of the indoor heat exchanger 3.

[0065] Alternatively, if Figure 4 As shown, the water-fluorine interconnection machine has a cooling and hot water supply mode. The cooling and hot water supply mode corresponds to the first circulation loop 300 running a refrigeration cycle, the first water pump 5.1 is turned on, the first valve 6.1 and the fourth valve 9.1 are turned on, the second valve 8.2 and the third valve 9.2 are closed, the first throttling device 8.1 is closed, and the second throttling device 3.1 is turned on.

[0066] In this embodiment, the first circulation loop 300 runs a refrigeration cycle, and the first auxiliary heat exchanger 8 does not participate in the circulation, and only the indoor heat exchanger 3 participates in the circulation. The circulation flow direction of the second circulation loop 400 is the first water pump 5.1, the second medium channel 102 of the outdoor heat exchanger 6, and the hot water collection tank. When the low-temperature water source of the second circulation loop 400 flows through the second medium channel 102 of the outdoor heat exchanger 6, it exchanges heat with the first medium channel 101 of the outdoor heat exchanger 6, and is then heated to hot water and enters the hot water collection tank. The indoor fan is turned on to ensure the indoor cooling effect. The outdoor fan is turned on or off according to the heat balance of the system. For example, if the heat at the first medium channel 101 of the outdoor heat exchanger 6 is less, the outdoor fan is turned off to effectively reduce the heat exchange between the outdoor air and the first medium channel 101 and the second medium channel 102 of the outdoor heat exchanger 6, ensure the heating efficiency of the hot water, and reduce the heat loss of the hot water. If the heat at the first medium channel 101 of the outdoor heat exchanger 6 is more, the outdoor fan is turned on to prepare hot water while ensuring the heat exchange effect of the outdoor heat exchanger 6.

[0067] Alternatively, if Figure 5 As shown, the water-fluorine interconnection machine has a heating and hot water supply mode. The heating and hot water supply mode corresponds to the first circulation loop 300 running a heating cycle, the first water pump 5.1 is turned on, the second valve 8.2 and the third valve 9.2 are turned on, the first valve 6.1 and the fourth valve 9.1 are closed, the first throttling device 8.1 is turned on, and the second throttling device 3.1 is turned on.

[0068] In this embodiment, the first circulation loop 300 runs a heating cycle, and the first auxiliary heat exchanger 8 and the indoor heat exchanger 3 both participate in the circulation. The circulation flow direction of the second circulation loop 400 is the first water pump 5.1, the second medium channel 102 of the indoor heat exchanger 3, the second medium channel 102 of the second auxiliary heat exchanger 9, and the hot water collection tank. When the low-temperature water source of the second circulation loop 400 flows through the second medium channel 102 of the first auxiliary heat exchanger 8, it exchanges heat with the first medium channel 101 of the first auxiliary heat exchanger 8 for the first time. Then, when the low-temperature water source flows out of the second medium channel 102 of the first auxiliary heat exchanger 8 and enters the second medium channel 102 of the second auxiliary heat exchanger 9, it exchanges heat with the first medium channel 101 of the second auxiliary heat exchanger 9 again. After being heated twice, the low-temperature water source meets the temperature of domestic water and then enters the hot water collection tank. The outdoor fan is turned on and the indoor fan is turned on. The outdoor fan is turned on to ensure the heat exchange of the outdoor heat exchanger 6, and the indoor fan is turned on to form hot air blowing into the room to ensure the heating effect.

[0069] Alternatively, if Figure 1 and Figure 2 As shown, the water-fluorine interconnection machine further includes a third circulation loop 500 and a heat exchange device 4. The second medium channel 102 of the indoor heat exchanger 3 is connected to the third circulation loop 500, and the second medium channels 102 of the multiple indoor heat exchangers 3 are in parallel relationship; and the third circulation loop 500 is provided with a second water pump 5.2; the heat exchange device 4 is connected to the third circulation loop 500 and is in series relationship with the second medium channel 102 of the indoor heat exchanger 3; when the water-fluorine interconnection machine operates in heating and hot water supply mode, the second water pump 5.2 is turned on.

[0070] In this embodiment, the circulating medium in the third circulation loop 500 includes water or antifreeze. After the second water pump 5.2 is turned on, the water or antifreeze circulates in the third circulation loop 500, and exchanges heat with the first medium channel 101 of the indoor heat exchanger 3 when flowing through the second medium channel 102 of the indoor heat exchanger 3. The water or antifreeze flow carries heat into the heat exchange device 4, and heat is supplied to the indoor through the heat exchange device 4. The outdoor fan is turned on to maintain the operation of the outdoor heat exchanger 6. The indoor fan can be turned on or off according to user needs. When the indoor fan is turned off, it is beneficial to the heat exchange of the first medium channel 101 and the second medium channel 102 of the indoor heat exchanger 3, and the user comfort is improved by heating through the heat exchange device 4. When the indoor fan is turned on, the indoor air exchanges heat with the first medium channel 101 and the second medium channel 102 of the indoor heat exchanger 3 through the second air channel 105 to form hot air, which can quickly respond to the heating demand. In this way, in the heating and hot water supply mode, hot water is supplied while heat is supplied to the room through the indoor heat exchanger 3 and the heat exchange device 4.

[0071] Optionally, the heat exchange device 4 includes a ceiling heat radiator, a wall heat radiator, a floor heat radiator or a liquid heat storage. The internal pipeline of the heat exchange device 4 is called a radiation heat channel 103, and the radiation heat channels 103 of multiple heat exchange devices 4 are connected in parallel. The above-mentioned type of heat exchange device 4 has a higher comfort as a heat radiation type heating terminal.

[0072] Exemplarily, the water-fluorine interconnection machine is applied to multiple rooms, and each room is provided with an indoor heat exchanger 3 and a heat exchange device 4. The heat exchange devices 4 of each room can be the same or different. For example, room 1 uses a ceiling heat radiator, room 2 uses a wall heat radiator, and room 3 uses a wall heat radiator.

[0073] Optionally, a seventh valve 3.2 is provided on one side of the second medium channel 102 of the indoor heat exchanger 3, and an eighth valve 4.1 is provided on one side of the internal pipe of the heat exchange device 4. In this way, when the water-fluorine interconnection machine is applied to multiple rooms, the heating amount can be adjusted by controlling the opening of the seventh valve 3.2 and the eighth valve 4.1 according to the heating demand of different rooms.

[0074] Alternatively, if Figure 6 As shown, the water-fluorine interconnection machine has a separate hot water supply mode. The separate hot water supply mode corresponds to the first circulation loop 300 running a heating cycle, the first water pump 5.1 is turned on, the second valve 8.2 and the third valve 9.2 are turned on, the first valve 6.1 and the fourth valve 9.1 are closed, the first throttling device 8.1 is turned on, and the multiple second throttling devices 3.1 are closed.

[0075] In this embodiment, the first circulation loop 300 runs a heating cycle, and the indoor heat exchanger 3 does not participate in the cycle, only the first auxiliary heat exchanger 8 participates in the cycle. The circulation flow direction of the second circulation loop 400 is the first water pump 5.1, the second medium channel 102 of the indoor heat exchanger 3, the second medium channel 102 of the second auxiliary heat exchanger 9, and the hot water collection tank. When the low-temperature water source of the second circulation loop 400 flows through the second medium channel 102 of the first auxiliary heat exchanger 8, it exchanges heat with the first medium channel 101 of the first auxiliary heat exchanger 8 for the first time. Then, when the low-temperature water source flows out of the second medium channel 102 of the first auxiliary heat exchanger 8 and enters the second medium channel 102 of the second auxiliary heat exchanger 9, it exchanges heat with the first medium channel 101 of the second auxiliary heat exchanger 9 again. After two heat exchanges, it reaches the domestic water temperature and then enters the hot water collection tank. The outdoor fan is turned on to maintain the operation of the outdoor heat exchanger 6, and the indoor fan is turned off to reduce energy consumption and does not supply hot air to the room to meet the demand of no temperature adjustment. In this embodiment, the first auxiliary heat exchanger 8 not only participates in the secondary heating of the low-temperature water source, but also serves as a condenser of the air-conditioning unit 100 to maintain the heating cycle of the first circulation loop 300, and does not supply heat to the room. In this way, the hot water supply mode is operated in the transition season, and hot water supply is achieved without affecting the indoor temperature.

[0076] Based on the above embodiments, it can be seen that the water-fluorine interconnection machine for supplying cold and hot water and domestic hot water provided in the embodiments of the present disclosure can meet the user's heating and cooling needs while ensuring thermal comfort and hot water supply throughout the year. In addition, the water-fluorine interconnection machine has a simple structure, high hot water production efficiency and low system energy consumption.

[0077] In summer, when the temperature is high, the water-fluorine interconnected machine operates in cooling and hot water supply mode, supplying cold air to the room while supplying hot water, meeting the demand for hot water and cooling. In winter, when the temperature is low, the water-fluorine interconnected machine operates in heating and hot water supply mode, supplying hot air and / or radiant heat to the room while supplying hot water, meeting the demand for hot water and comfortable heating. In the transition season, when there is no need to adjust the indoor temperature, the water-fluorine interconnected machine operates in a separate hot water supply mode, supplying hot water without affecting the indoor temperature, which is difficult to achieve with the existing air conditioning system's cold and hot trigeneration technology.

[0078] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A water-fluorine interconnector for supplying cold, hot and domestic hot water, characterized in that: include: One or more air conditioning units (100), the air conditioning units (100) comprising a first auxiliary heat exchanger (8), an outdoor heat exchanger (6) and at least one indoor heat exchanger (3), wherein the first auxiliary heat exchanger (8) is a two-medium heat exchanger, and the outdoor heat exchanger (6) and the indoor heat exchanger (3) are both three-medium heat exchangers; A first circulation loop (300), each of the air-conditioning units (100) having one first circulation loop (300), and the plurality of first circulation loops (300) being independent of each other; the first medium channel (101) of the outdoor heat exchanger (6) and the first medium channel (101) of the indoor heat exchanger (3) are connected in series and are connected to the first circulation loop (300), and the first medium channel (101) of the first auxiliary heat exchanger (8) and the first medium channel (101) of the indoor heat exchanger (3) are connected in parallel and are connected to the first circulation loop (300); and a first throttling device (8.1) is provided on one side of the first medium channel (101) of the first auxiliary heat exchanger (8), and a second throttling device (3.1) is provided on one side of the first medium channel (101) of the indoor heat exchanger (3); A second circulation loop (400), each of the air conditioning units (100) having one second circulation loop (400), and a plurality of the second circulation loops (400) being connected to each other; the second medium channel (102) of the first auxiliary heat exchanger (8) and the second medium channel (102) of the outdoor heat exchanger (6) are connected in parallel and are connected to the second circulation loop (400); A hot water unit (200) comprises a first water pump (5.1) and a collecting device (10); the first water pump (5.1) supplies a low-temperature water source to the second circulation loop (400); the collecting device (10) recovers the high-temperature water source after heat exchange in the second circulation loop (400), and the high-temperature water source can be supplied to the outside; A first valve (6.1) is provided on one side of the second medium channel (102) of the outdoor heat exchanger (6), and a second valve (8.2) is provided on one side of the second medium channel (102) of the first auxiliary heat exchanger (8), so that a plurality of functional modes can be realized by controlling the states of the first water pump (5.1), the first throttling device (8.1), the second throttling device (3.1), the first valve (6.1) and the second valve (8.2).

2. The water-fluorine interconnector for supplying cold, hot and domestic hot water according to claim 1, characterized in that: The collecting device (10) comprises: A hot water collection tank, the outflow side of the second medium channel (102) of the outdoor heat exchanger (6) and the outflow side of the second medium channel (102) of the first auxiliary heat exchanger (8) are connected to the hot water collection tank; and the hot water collection tank supplies hot water to the outside through a supply pipeline.

3. The water-fluorine interconnection machine for supplying cold, hot and domestic hot water according to claim 2, characterized in that: The hot water collection tank is connected to the water inlet end of the first water pump (5.1) via a reheating pipeline, so that the water in the hot water collection tank can enter the second circulation loop (400) through the first water pump (5.1).

4. The water-fluorine interconnector for supplying cold, hot and domestic hot water according to claim 1, characterized in that: Also includes: A third circulation loop (500), wherein the second medium channel (102) of the indoor heat exchanger (3) is connected to the third circulation loop (500), and the second medium channels (102) of a plurality of the indoor heat exchangers (3) are connected in parallel; and a second water pump (5.2) is provided on the third circulation loop (500); The heat exchange device (4) is connected to the third circulation loop (500) and is in series with the second medium channel (102) of the indoor heat exchanger (3), and an eighth valve (4.1) is provided on one side of the heat exchange device (4).

5. The water-fluorine interconnection machine for supplying cold, hot and domestic hot water according to claim 4, characterized in that: The heat exchange device (4) comprises a ceiling heat radiator, a wall heat radiator, a floor heat radiator or a liquid heat storage device.

6. The water-fluorine interconnection machine for supplying cold, hot and domestic hot water according to any one of claims 1 to 5, characterized in that: Also includes: The second auxiliary heat exchanger (9) is constructed as a dual-medium heat exchanger, wherein the first medium channel (101) thereof is connected to the first circulation loop (300) and is in series with the first medium channel (101) of the first auxiliary heat exchanger (8); and the second medium channel (102) thereof is connected to the second circulation loop (400) and is in series with the second medium channel (102) of the first auxiliary heat exchanger (8); A third valve (9.2) is provided on one side of the first medium channel (101) of the second auxiliary heat exchanger (9); Both ends of the first medium channel (101) of the second auxiliary heat exchanger (9) are connected to a bypass branch (301), and a fourth valve (9.1) is provided on the bypass branch (301).

7. The water-fluorine interconnector for supplying cold, hot and domestic hot water according to claim 6, characterized in that: The water-fluorine interconnecting machine for supplying cold and hot water and domestic hot water has a cold supply and hot water supply mode, and the cold supply and hot water supply mode corresponds to the first circulation loop (300) running a refrigeration cycle, the first water pump (5.1) is turned on, the first valve (6.1) and the fourth valve (9.1) are turned on, the second valve (8.2) and the third valve (9.2) are closed, the first throttling device (8.1) is closed, and the second throttling device (3.1) is turned on.

8. The water-fluorine interconnector for supplying cold, hot and domestic hot water according to claim 6, characterized in that: The water-fluorine interconnecting machine for supplying hot and cold water and domestic hot water has a heating and hot water supply mode, and the heating and hot water supply mode corresponds to the first circulation loop (300) running a heating cycle, the first water pump (5.1) is turned on, the second valve (8.2) and the third valve (9.2) are turned on, the first valve (6.1) and the fourth valve (9.1) are closed, the first throttling device (8.1) is turned on, and the second throttling device (3.1) is turned on.

9. The water-fluorine interconnector for supplying cold, hot and domestic hot water according to claim 8, characterized in that: When the water-fluorine interconnected machine for supplying cold, hot and domestic hot water operates in a heating and hot water supply mode, it also includes: the second water pump (5.2) is turned on, and the eighth valve (4.1) corresponding to the heat exchange device (4) required for heat supply is turned on.

10. The water-fluorine interconnection machine for supplying cold, hot and domestic hot water according to claim 6, characterized in that: The water-fluorine interconnecting machine for supplying hot and cold water and domestic hot water has a separate hot water supply mode, and the separate hot water supply mode corresponds to the first circulation loop (300) running a heating cycle, the first water pump (5.1) is turned on, the second valve (8.2) and the third valve (9.2) are turned on, the first valve (6.1) and the fourth valve (9.1) are closed, the first throttling device (8.1) is turned on, and multiple second throttling devices (3.1) are turned off.

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