Water-cooled air conditioner

Abstract

The utility model discloses a water-cooled air conditioner, which relates to the technical field of air conditioners and comprises a waterway branch, a pressure drainage device and an outlet end, the waterway branch is connected to an outlet of a waterway pipeline and can discharge liquid media to the outside, and the pressure drainage device is connected to the waterway branch and can block and open the waterway branch; and the outlet end is communicated to an outlet of the water path pipeline, is connected with the water path branch in parallel, and can be opened to output the liquid medium after heat exchange to the outside. According to the water-cooled air conditioner, the pressure drainage device and the water path branch are utilized, a new liquid medium can be continuously introduced for heat exchange, and the liquid medium after heat exchange is continuously generated, so that a user can immediately obtain the liquid medium after heat exchange by opening the outlet end, the heat exchange efficiency of the liquid medium and a refrigerant is stable, and the service life of the liquid medium is prolonged. In addition, the water-cooled air conditioner does not need to adopt water storage equipment, and the water-cooled air conditioner is beneficial to achieving miniaturization of the size.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a water-cooled air conditioner. Background Art

[0002] An air conditioner refers to a device that uses artificial means to adjust and control parameters such as the temperature, humidity, and flow rate of the indoor air in a building or structure. The kitchen is a space configured in every household. When users cook in the kitchen, they will use various cooking equipment, and the heat generated by these cooking equipment will increase the temperature of the kitchen, making it easy for users to feel uncomfortable.

[0003] At present, some kitchens are equipped with water-cooled air conditioners. Different from traditional air-cooled air conditioners, water-cooled air conditioners can provide both cold air and hot water at the same time, meeting the needs of users for adjusting the kitchen environment temperature and using hot water. Existing water-cooled air conditioners generally have a water storage tank. By collecting the heat released during the condensation of the refrigerant and transferring the heat to the water in the water storage tank, the temperature of the water in the water storage tank is increased to form hot water. When the user needs to use hot water, the hot water stored in the water storage tank is output for the user to use.

[0004] However, due to the need for water storage in the water storage tank, the water in the water storage tank cannot be easily discharged. However, as the temperature of the water in the water storage tank increases, the temperature difference between the refrigerant and the water will decrease, resulting in a gradual decrease in the heat exchange efficiency between the two. The utilization rate of the heat released during the condensation process of the refrigerant is not high. Moreover, this will also cause the air conditioner unit to operate at a high load, and the power consumption will gradually increase. Although the temperature of the water in the water storage tank will decrease after the hot water in the water storage tank is used and cold water is re-injected into the water storage tank, which will increase the heat exchange efficiency between the refrigerant and the water, this will also cause fluctuations in the cooling capacity output of the air conditioner, and the airflow output by the air conditioner to the room will be alternately cold and hot, affecting the user experience. Moreover, the volume of the water storage tank is generally large, resulting in the inability of existing water-cooled air conditioners to reduce their volume, making it difficult to achieve product miniaturization, and there are many restrictions on the layout of the product in the kitchen. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a water-cooled air conditioner that does not require a water storage tank and can output hot water immediately, so as to solve the problems of unstable heat exchange efficiency, easy fluctuation of cooling capacity output, and difficulty in miniaturization of existing water-cooled air conditioners.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A water-cooled air conditioner, characterized by comprising:

[0008] A refrigerant circulation circuit, which includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger connected in sequence through refrigerant pipelines;

[0009] A blower, which is used to drive indoor air to flow through the first heat exchanger for heat exchange;

[0010] A water pipeline, the inlet end of the water pipeline is connected to an external cold water input port, the outlet end of the water pipeline is connected to an external water-using unit, the second heat exchanger is connected to the water pipeline, and the water in the water pipeline exchanges heat with the refrigerant in the refrigerant pipeline in the second heat exchanger;

[0011] A water pipeline branch, which is connected between the second heat exchanger and the outlet end, and the water pipeline branch is used to discharge a part of the water in the water pipeline;

[0012] Wherein, a pressure drainage device is provided on the water pipeline branch, and the pressure drainage device is used to control the connection and disconnection of the water pipeline branch.

[0013] In some embodiments, the second heat exchanger includes:

[0014] A first heat exchange tube, which is connected to the refrigerant pipeline;

[0015] A second heat exchange tube, which is connected to the water pipeline, and,

[0016] The outlet end of the first heat exchange tube is arranged adjacent to the inlet end of the second heat exchange tube, so that the conveying direction of the refrigerant in the first heat exchange tube is opposite to the conveying direction of the water in the second heat exchange tube.

[0017] In some embodiments, the water-cooled air conditioner further includes:

[0018] A drainage assembly, which is used to collect the water discharged from the water pipeline branch; wherein, the drainage assembly includes:

[0019] A water collection container, which is connected to the water pipeline branch to store the water discharged through the water pipeline branch;

[0020] A first drainage port, which is arranged on the water collection container and communicated with the water collection container to discharge the water in the water collection container.

[0021] In some embodiments, the drainage assembly further includes:

[0022] A water receiving tray, which is arranged below the first heat exchanger and is used to collect the condensed water of the first heat exchanger; and,

[0023] The water receiving tray is communicated with the water collecting container to convey the condensed water generated by the first heat exchanger into the water collecting container.

[0024] In some embodiments, the drainage assembly further includes:

[0025] A pump connected to the water collecting container to pump the water stored in the water collecting container;

[0026] A second drainage port connected to the pump and arranged above the first drainage port; and the pump can drive the water in the water collecting container to be discharged through the second drainage port.

[0027] In some embodiments, the drainage assembly further includes:

[0028] A water level monitoring device for monitoring the height of the water in the water collecting container; and the water level monitoring device is connected to the pump to control the start and stop of the pump.

[0029] In some embodiments, the water-cooled air conditioner further includes:

[0030] A flow regulating device connected between the second heat exchanger and the inlet end, and the flow regulating device is used to adjust the flow area of the water pipeline to regulate the flow rate of the water in the water pipeline entering the second heat exchanger.

[0031] In some embodiments, the first heat exchange tube is sleeved on the outer periphery of the second heat exchange tube, and the trajectory line arranged by the first heat exchange tube coincides with the trajectory line arranged by the second heat exchange tube; and the inlet end of the first heat exchange tube is arranged adjacent to the outlet end of the second heat exchange tube.

[0032] In some embodiments, the first heat exchange tube and the second heat exchange tube are arranged in a spiral shape, and the first heat exchange tube and the second heat exchange tube are arranged beside the compressor, or the first heat exchange tube and the second heat exchange tube are arranged around the compressor.

[0033] In some embodiments, the water-cooled air conditioner includes a housing, and the housing includes:

[0034] An upper housing, the first heat exchanger is arranged in the upper housing, and an air inlet and an air outlet are arranged on the front side of the upper housing, and the air inlet is arranged below the air outlet;

[0035] A lower housing arranged below the upper housing, and the compressor, the second heat exchanger and the pressure drainage device are arranged in the lower housing, and,

[0036] The inlet end and the outlet end of the water pipeline are both arranged at the rear side of the lower shell, and the inlet end is arranged below the outlet end.

[0037] Compared with the prior art, the water-cooled air conditioner implemented by the present utility model has the following beneficial effects:

[0038] The water-cooled air conditioner of the present application is provided with a second heat exchanger and a first heat exchanger to exchange heat between external cold water and refrigerant, meeting the dual requirements of the kitchen environment for cold air and hot water. Moreover, a water pipeline branch and a pressure drainage device are connected between the second heat exchanger and the outlet end of the water pipeline. By using the water pipeline branch and the pressure drainage device, the water-cooled air conditioner can timely discharge a part of the water in the water pipeline. In this way, when the external water-using unit is turned on, the hot water obtained by heat exchange can flow out through the outlet end of the water pipeline for users to use; when the external water-using unit is turned off, as the external cold water continuously enters the second heat exchanger, the pipeline pressure of the water pipeline will continuously rise. The water pipeline branch and the pressure drainage device can discharge a part of the water in the water pipeline to the outside of the water-cooled air conditioner to reduce the internal pressure of the water pipeline. In this way, the water-cooled air conditioner can continuously introduce new external cold water for heat exchange and continuously generate hot water after heat exchange. This not only enables users to immediately obtain hot water after heat exchange when turning on the external water-using unit, but also makes the heat exchange efficiency between the water in the water pipeline and the refrigerant in the refrigerant pipeline stable, avoiding fluctuations in the cooling capacity output. Moreover, the water-cooled air conditioner realizes the timely discharge of the water in the water pipeline through the pressure drainage device, so that the water-cooled air conditioner does not need to adopt a water storage device and does not need to store liquid media, which is beneficial to realizing miniaturization of volume.

[0039] Moreover, the water-cooled air conditioner is provided with a drainage assembly, so that the condensed water generated during refrigeration and the water used during the heat exchange process can be timely discharged. By using the water collecting container and the pump of the drainage assembly, the water-cooled air conditioner can adapt to the drainage port layout of various application scenarios and ensure that the condensed water generated during refrigeration and the water used during the heat exchange process can be timely discharged outside the air conditioner unit. Description of the Drawings

[0040] Figure 1 is a schematic diagram of the water-cooled air conditioner in the embodiment of the present application;

[0041] Figure 2 is a connection schematic diagram of the water-cooled air conditioner in the embodiment of the present application;

[0042] Figure 3 is a connection schematic diagram of another example of the water-cooled air conditioner in the embodiment of the present application;

[0043] Figure 4It is a connection schematic diagram of another example of the water-cooled air conditioner in the embodiment of the present application;

[0044] Figure 5 It is Figure 4 A schematic diagram of the path of the refrigerant and tap water when the pressure drainage device in the example is closed;

[0045] Figure 6 It is Figure 4 A schematic diagram of the path of the refrigerant and tap water when the pressure drainage device in the example is opened;

[0046] Figure 7 It is a schematic diagram of another angle of the water-cooled air conditioner in the embodiment of the present application;

[0047] Figure 8 It is an internal schematic diagram of the water-cooled air conditioner in the embodiment of the present application;

[0048] Figure 9 It is Figure 8 An enlarged view of A in;

[0049] Figure 10 It is an internal schematic diagram of another angle of the water-cooled air conditioner in the embodiment of the present application;

[0050] Figure 11 It is a schematic diagram of the parallel arrangement of the flow regulating device in the embodiment of the present application;

[0051] Figure 12 It is a schematic diagram of the second heat exchanger arranged around the compressor in the embodiment of the present application.

[0052] In the figure, 100, water-cooled air conditioner;

[0053] 1, housing; 1a, upper housing; 1b, lower housing; 2, air inlet; 3, air outlet; 4, compressor; 5, first heat exchanger; 6, fan; 7, second heat exchanger; 7a, first heat exchange tube; 70a, refrigerant inlet; 71a, refrigerant outlet; 7b, second heat exchange tube; 70b, cold water inlet; 71b, hot water outlet; 8, outlet end; 9, pressure drainage device; 10, drainage assembly; 10a, water collecting container; 10b, first drainage port; 10c, pump; 10d, second drainage port; 10e, water level monitoring device; 10f, water receiving tray; 11, flow regulating device; 11a, valve body; 12, inlet end; 13, faucet; 14, throttling device; 15, water path branch; 16, refrigerant pipeline; 17, water path pipeline. Specific embodiments

[0054] The following will further describe in detail the specific embodiments of the present application with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application but are not used to limit the scope of the present application.

[0055] In the description of the present application, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "mounted", "connected", and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0056] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "height", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present application is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0057] In the description of the present application, it should be understood that the terms "first" and "second" in the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0058] In the present application, the water-cooled air conditioner 100 performs the refrigeration cycle of the air conditioner through the compressor 4, the condenser, the expansion valve, and the evaporator. The refrigeration cycle includes a series of processes such as compression, condensation, expansion, and evaporation, and provides cold or heat to the indoor air by the heat absorption or heat release of the refrigerant, thereby adjusting the temperature of the indoor air.

[0059] The compressor 4 compresses the refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0060] The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 4. The evaporator can achieve the refrigeration effect by using the latent heat of evaporation of the refrigerant to perform heat exchange with the material to be cooled. During the entire cycle, the air conditioner can adjust the temperature of the indoor air.

[0061] The directions described in the text are based on the direction in which the user faces the air conditioner. Among them, the left and right sides are distinguished according to the direction in which the user faces the air conditioner. The side facing the user when the air conditioner is in use is defined as the front side, and the opposite side is defined as the rear side. The upper and lower sides are distinguished when the air conditioner is operating normally in general.

[0062] The following refers to Figures 1 - 12 Describe the water-cooled air conditioner 100 according to the embodiments of the present application. In this embodiment, the water-cooled air conditioner 100 includes a housing 1. The housing 1 is provided with an air inlet 2 and an air outlet 3. A compressor 4, a first heat exchanger 5, a fan 6, a throttling device 14, and a second heat exchanger 7 are arranged in the housing 1. The compressor 4, the first heat exchanger 5, the throttling device 14, and the second heat exchanger 7 are sequentially connected through a refrigerant pipeline 16 to form a refrigerant circulation loop. Among them, the compressor 4 is used to compress and drive the refrigerant, which can change the refrigerant from a low-temperature and low-pressure state to a high-pressure and high-temperature state, and drive the refrigerant to sequentially pass through the second heat exchanger 7, the throttling device 14, and the first heat exchanger 5.

[0063] In the refrigerant circulation loop, the first heat exchanger 5 is a condenser, and the second heat exchanger 7 is an evaporator. After the compressor 4 compresses the refrigerant, it outputs high-temperature and high-pressure gaseous refrigerant to the second heat exchanger 7. After releasing heat in the second heat exchanger 7, the refrigerant is then transported to the first heat exchanger 5. In the first heat exchanger 5, the refrigerant absorbs heat from the passing air and then becomes low-temperature gaseous refrigerant and returns to the compressor 4. The throttling device 14, such as an expansion valve, a capillary tube, etc., arranged between the second heat exchanger 7 and the first heat exchanger 5, makes the refrigerant that releases heat in the second heat exchanger 7 pass through the throttling device 14 and become a low-temperature and low-pressure state, and then flow to the first heat exchanger 5.

[0064] The fan 6 and the first heat exchanger 5 cooperate with each other. When the fan 6 starts, indoor air can be sucked into the housing 1 and flow through the first heat exchanger 5. The first heat exchanger 5 is used to exchange heat between the indoor air flow and the refrigerant transmitted in the first heat exchanger 5. In the first heat exchanger 5, the low-temperature refrigerant absorbs heat from the sucked air, reduces the air temperature to become cold air, and then is output to the room by the fan 6. By controlling the rotation speed of the fan 6, the cold air output of the water-cooled air conditioner 100 can be adjusted. According to the use requirements, the first heat exchanger 5 can use a finned-tube heat exchanger, or a microchannel heat exchanger or other devices that can realize heat exchange between the refrigerant and the air.

[0065] In the refrigerant cycle circuit, the second heat exchanger 7 is provided with two pipelines, namely the first heat exchange pipe 7a and the second heat exchange pipe 7b. Among them, the first heat exchange pipe 7a is used to connect the compressor 4 and the throttling device 14 for the refrigerant to flow. Therefore, the inlet end of the first heat exchange pipe 7a is the refrigerant inlet 70a, and the outlet end of the first heat exchange pipe 7a is the refrigerant outlet 71a; the second heat exchange pipe 7b is used to introduce external cold water. By making the external cold water flowing in the second heat exchange pipe 7b exchange heat with the refrigerant in the first heat exchange pipe 7a, in the second heat exchanger 7, the refrigerant in the high-temperature state releases heat to the external cold water, increasing the temperature of the external cold water, so that the water-cooled air conditioner 100 can output high-temperature hot water to the outside world. Therefore, the inlet end of the second heat exchange pipe 7b is the cold water inlet 70b, and the outlet end of the second heat exchange pipe 7b is the hot water outlet 71b; in the first heat exchanger 5, the refrigerant in the low-temperature state absorbs heat from the air, cooling the air, so that the water-cooled air conditioner 100 can output cold air to the outside world.

[0066] Generally speaking, based on the application scenario of the water-cooled air conditioner 100, the liquid medium flowing in the second heat exchange pipe 7b is water. For example, when the water-cooled air conditioner 100 is applied to a kitchen environment, the second heat exchange pipe 7b can be connected to the tap water pipe in the kitchen, so that the water-cooled air conditioner 100 can use tap water to exchange heat with the refrigerant. In this way, the water-cooled air conditioner 100 can not only output hot water to the indoor environment, but also use the heat generated by the evaporation of the refrigerant to prepare hot water and provide hot water to users.

[0067] It can be understood that the water-cooled air conditioner 100 continuously introduces tap water to ensure that heat exchange can continuously occur in the second heat exchanger 7, reducing the temperature of the refrigerant in the second heat exchanger 7. In this way, the water-cooled air conditioner 100 will continuously produce hot water. Therefore, the water-cooled air conditioner 100 is equipped with a water pipeline 17. The inlet end 12 of the water pipeline 17 is connected to the external cold water input port, the outlet end 8 of the water pipeline 17 is connected to the external water using unit, and the second heat exchanger 7 is connected to the water pipeline 17, so that the water flowing in the water pipeline 17 exchanges heat with the refrigerant flowing in the refrigerant pipeline 16 in the second heat exchanger 7.

[0068] The outlet end 8 of the water pipeline 17 is connected to the second heat exchange pipe 7b and the external water using unit. Therefore, when the external water using unit is turned on, the outlet end 8 of the water pipeline 17 can output hot water to the outside world. In this way, when the user uses hot water, the hot water generated by the water-cooled air conditioner 100 can flow through the outlet end 8 to the faucet 13 opened by the user for the user to use. Moreover, as the tap water in the second heat exchange pipe 7b is discharged from the outlet end 8 of the air conditioner unit, the tap water will be replenished into the second heat exchanger 7 from the cold water inlet 70b of the second heat exchange pipe 7b, so that the tap water can continuously enter the second heat exchange pipe 7b of the second heat exchanger 7.

[0069] In the case where the user stops using hot water, the water-cooled air conditioner 100 needs to drain the tap water in the second heat exchange tube 7b. Therefore, in the water-cooled air conditioner 100, a water path branch 15 and a pressure drainage device 9 are connected to the hot water outlet 71b of the second heat exchange tube 7b. The water path branch 15 is connected between the hot water outlet 71b and the outlet end 8 and is used to drain a part of the water in the water path pipeline 17. The pressure drainage device 9 is used to control the connection and disconnection of the water path branch 17. Generally speaking, the pressure drainage device 9 may have a pressure threshold for controlling its opening and closing. Moreover, the pressure drainage device 9 can be closed when the pressure at the outlet of the second heat exchange tube 7b does not exceed the pressure threshold to block the water path branch 15, and can be opened when the pressure at the outlet of the second heat exchange tube 7b exceeds the pressure threshold to open the water path branch 15, so as to drain the water flowing in the second heat exchange tube 7b. As an example of this embodiment, the pressure drainage device 9 can be selected as a pressure relief valve, and through the pressure threshold configured by the pressure relief valve itself, the purpose of blocking or opening the water path branch 15 based on the pipeline pressure of the second heat exchange tube 7b can be achieved.

[0070] By configuring the water path branch 15 and the pressure drainage device 9, when the user needs to use hot water, this water-cooled air conditioner can output hot water to the outside through the faucet 13 and the outlet end 8 that are opened by the user. At this time, since the hot water can be discharged from the outlet end 8, the pipeline pressure of the second heat exchange tube 7b is not high, and tap water can be introduced into the second heat exchanger 7 and then discharged from the outlet end 8 to achieve continuous flow. When the user does not use hot water, that is, when the faucet 13 is closed, the outlet end 8 cannot discharge hot water to the outside. At this time, tap water accumulates in the water path pipeline 17, causing the internal pressure of the water path pipeline 17 and the second heat exchange tube 7b to increase. When the internal pressure of the water path pipeline 17 and the second heat exchange tube 7b exceeds the pressure threshold of the pressure drainage device 9, the pressure drainage device 9 is immediately opened, causing the water path branch 15 to be opened, and a part of the tap water in the water path pipeline 17 and the second heat exchange tube 7b can be discharged to the outside of the water-cooled air conditioner 100 through the water path branch 15 to reduce the internal pressure of the water path pipeline 17 and the second heat exchange tube 7b until the internal pressure of the water path pipeline 17 and the second heat exchange tube 7b is lower than the pressure threshold of the pressure drainage device 9, causing the pressure drainage device 9 to close. In this way, this water-cooled air conditioner 100 can conveniently and quickly identify the user's water usage situation without additional detection means, and this water-cooled air conditioner 100 also does not require other control means to seamlessly output hot water to the user end; moreover, by arranging the water path branch 15, this water-cooled air conditioner 100 has two flow paths, and tap water can select the flow path according to the opening situation of the outlet end 8 and the opening situation of the water path branch 15. In this way, whether the user uses hot water or not, the tap water flowing into the second heat exchanger 7 can be discharged to the outside of the water-cooled air conditioner 100, enabling this water-cooled air conditioner 100 to continuously introduce new tap water for heat exchange and continuously generate hot water after heat exchange. This not only allows the user to immediately obtain hot water when opening the outlet end 8, but also keeps the temperature of the tap water in the second heat exchanger 7 stable, thereby making the heat exchange efficiency of the refrigerant in the second heat exchanger 7 stable and ensuring the cooling capacity output of the water-cooled air conditioner 100.

[0071] It can be understood that when the pressure threshold of the pressure drainage device 9 uses a valve body 11a such as a pressure relief valve for regulating pipeline pressure, its pressure threshold can be configured according to the specifications of the water path pipeline 17 and the second heat exchange tube 7b and the flow rate of tap water.

[0072] It can be understood that tap water and refrigerant flow in the second heat exchange tube 7b and the first heat exchange tube 7a of the second heat exchanger 7 respectively. To ensure the heat exchange efficiency between tap water and refrigerant, the second heat exchange tube 7b and the first heat exchange tube 7a can be arranged close to each other to ensure that tap water and refrigerant can exchange heat in the second heat exchanger 7.

[0073] When the tap water exchanges heat with the refrigerant, the greater the flow rate of the tap water, the greater the total amount of tap water that exchanges heat in the second heat exchanger 7. As a result, the total amount of heat absorbed by the tap water from the refrigerant is more, and then the temperature of the refrigerant after heat exchange in the second heat exchanger 7 will be lower.

[0074] For the tap water to exchange heat with the refrigerant, there must be a certain temperature difference between the tap water and the refrigerant. Generally speaking, the greater the temperature difference, the higher the heat exchange efficiency between the tap water and the refrigerant, and the smaller the temperature difference, the lower the heat exchange efficiency between the tap water and the refrigerant. Considering that the tap water absorbs heat and warms up in the second heat exchanger 7, while the refrigerant releases heat and cools down in the second heat exchanger 7, referring to Figures 1 - 9 , as an example of this embodiment, in the second heat exchanger 7, the conveying direction of the refrigerant in the first heat exchange tube 7a can be opposite to the conveying direction of the water in the second heat exchange tube 7b, and the refrigerant outlet 71a of the first heat exchange tube 7a and the cold water inlet 70b of the second heat exchange tube 7b are arranged adjacent to each other.

[0075] It can be understood that when the refrigerant flows from the cold water inlet 70b of the first heat exchange tube 7a to the refrigerant outlet 71a of the first heat exchange tube 7a, the temperature of the refrigerant changes from high to low, and when the tap water flows from the cold water inlet 70b of the second heat exchange tube 7b to the outlet of the second heat exchange tube 7b, the temperature of the tap water changes from low to high. The conveying direction of the refrigerant in the first heat exchange tube 7a being opposite to the conveying direction of the liquid medium in the second heat exchange tube 7b can make the low-temperature tap water close to the low-temperature refrigerant, and the high-temperature tap water close to the high-temperature refrigerant, so that the temperature difference between the tap water and the refrigerant in the second heat exchanger 7 can remain relatively stable, thus avoiding fluctuations in the heat exchange efficiency of the second heat exchanger 7.

[0076] Moreover, as an example of this embodiment, the first heat exchange tube 7a can be sleeved on the outer periphery of the second heat exchange tube 7b, and the trajectory line arranged by the first heat exchange tube 7a coincides with the trajectory line arranged by the second heat exchange tube 7b; and the refrigerant inlet 70a of the first heat exchange tube 7a and the hot water outlet 71b of the second heat exchange tube 7b are arranged adjacent to each other. In this way, the refrigerant and the tap water can continuously exchange heat in the second heat exchanger 7, thereby improving the heat exchange efficiency between the refrigerant and the tap water.

[0077] Moreover, the first heat exchange tube 7a and the second heat exchange tube 7b can be arranged in a spiral manner within the housing 1, thereby prolonging the flow time of the refrigerant and tap water in their respective pipelines, and thus improving the heat exchange efficiency between the refrigerant and the tap water. In addition, by adopting the spiral arrangement, the required layout space for the first heat exchange tube 7a and the second heat exchange tube 7b can be reduced. In this way, the first heat exchange tube 7a and the second heat exchange tube 7b can be arranged beside the compressor 4, such as on the left or right side of the compressor 4. Of course, the first heat exchange tube 7a and the second heat exchange tube 7b can also be arranged around the compressor 4, thereby further reducing the layout space for the first heat exchange tube 7a and the second heat exchange tube 7b, making the volume of the water-cooled air conditioner 100 smaller.

[0078] Depending on the different application scenarios of the water-cooled air conditioner 100, the drain outlet in some application scenarios may not be convenient to directly connect to. Therefore, the water-cooled air conditioner 100 can be configured with a drainage structure to facilitate the discharge of the liquid medium.

[0079] Reference Figures 1 - 10 , as an example of this embodiment, the water-cooled air conditioner 100 further includes a drainage assembly 10. The drainage assembly 10 is used to collect the water discharged by the pressure drainage device 9. Among them, the drainage assembly 10 includes a water collection container 10a and a first drain outlet 10b. The water collection container 10a is connected to the water path branch 15 and is used to store the water discharged by the pressure drainage device 9. The first drain outlet 10b is provided on the water collection container 10a and communicates with the water collection container 10a to discharge the water in the water collection container 10a to the outside of the water-cooled air conditioner 100. Depending on the spatial layout, the pressure drainage device 9 can be directly placed in the water collection container 10a or placed outside the water collection container 10a and then connected to the water collection container 10a through a pipeline.

[0080] The water collection container 10a can collect and store the tap water discharged by the pressure drainage device 9. By using the first drain outlet 10b, the drainage assembly 10 can utilize the fluidity of the tap water itself to discharge the heat-exchanged tap water to the indoor sewage outlet. The first drain outlet 10b is generally arranged on the side wall of the water collection container 10a. By adjusting the distance between the first drain outlet 10b and the bottom of the water collection container 10a, the drainage timing of the water collection container 10a can be controlled.

[0081] Of course, in addition to relying on the fluidity and gravity of tap water to achieve passive drainage, the drainage assembly 10 can also be designed for active drainage. As an example of this embodiment, the drainage assembly 10 may further include a pump 10c and a second drainage port 10d. Among them, the pump 10c is connected to the water collection container 10a for pumping the fluid stored in the water collection container 10a; the second drainage port 10d is connected to the pump 10c and is used to discharge the fluid pumped by the pump 10c outside the water-cooled air conditioner 100. Moreover, the second drainage port 10d is arranged above the first drainage port 10b.

[0082] When the user needs active drainage, by starting the pump 10c to pump the water in the water collection container 10a, active drainage can be achieved. The second drainage port 10d is arranged above the first drainage port 10b, which can make the second drainage port 10d easier to connect to the sewage outlet in the room to adapt to the sewage outlet designs with different heights in various indoor environments.

[0083] Secondly, considering that the water collection container 10a is generally arranged in the housing 1 of the water-cooled air conditioner 100 and it is not convenient for the user to observe the water storage situation of the water collection container 10a. As an example of this embodiment, the drainage assembly 10 may further include a water level monitoring device 10e for monitoring the height of the water in the water collection container 10a; and the water level monitoring device 10e is connected to the pump 10c. When the water level in the water collection device reaches a certain height, the pump 10c is started to pump the water in the water collection container 10a, so that the water in the water collection container 10a is discharged outside the water-cooled air conditioner 100.

[0084] During the operation of the air-conditioning unit for refrigeration, due to the low temperature of the condenser, condensed water is likely to be generated on its surface. In order to prevent the condensed water from polluting the internal environment of the air-conditioning unit and affecting the normal operation of the air-conditioning unit, the condensed water generated by the condenser needs to be collected and discharged. Refer to Figures 4 - 10 As an example of this embodiment, the drainage assembly 10 may further include a water receiving tray 10f. The water receiving tray 10f is arranged below the first heat exchanger 5 and is used to collect the condensed water of the first heat exchanger 5; and the water receiving tray 10f is communicated with the water collection container 10a to convey the condensed water generated by the first heat exchanger 5 into the water collection container 10a.

[0085] It can be understood that the water receiving tray 10f can make the condensed water flow into the water collection container 10a based on its own fluidity and gravity by arranging it at a height higher than the water collection container 10a. Or, the water receiving tray 10f can also make the condensed water be conveyed into the water collection container 10a by setting a conveying device. The conveying method of the condensed water can be configured according to the specifications and performance of the water-cooled air conditioner 100.

[0086] It is understandable that the flow rate of tap water will affect the heat exchange efficiency of the second heat exchanger 7 and the temperature of the refrigerant in the refrigeration cycle. Therefore, adjusting the flow rate of tap water is a way for the water-cooled air conditioner 100 to adjust the cooling capacity. Figures 2 - 6 , Figure 11 As an example of this embodiment, the water-cooled air conditioner 100 may include a flow regulating device 11. The flow regulating device 11 is connected between the cold water inlet 70b of the second heat exchange tube 7b and the inlet end 12 of the water pipe 17; and the flow regulating device 11 can adjust the flow area of ​​the water introduced into the water pipe 17 to adjust the flow rate of water in the second heat exchange tube 7b.

[0087] Specifically, the flow regulating device 11 may be a valve body 11a. The number of valve bodies 11a may be one or more. Multiple valve bodies 11a are connected in parallel or in series, and can adjust the flow area of ​​the second heat exchange tube 7b, thereby adjusting the cooling capacity of the air conditioning unit. Of course, the flow regulating device 11 may also be other flow regulators with the same function.

[0088] It is understandable that the structure of the housing 1 of the water-cooled air conditioner 100 is diverse. Generally speaking, the compressor 4, the first heat exchanger 5, the second heat exchanger 7, the fan 6 and other structures are arranged in the housing 1 to form an integrated structure, so that the water-cooled air conditioner 100 can be installed in an environment with limited space such as a kitchen and with a need for hot water. As an example of this embodiment, refer to Figure 1 , Figure 7 , Figures 8 - 10 The shell 1 may include an upper shell 1a and a lower shell 1b, wherein the upper shell 1a is arranged above the lower shell 1b, and the first heat exchanger 5 is arranged in the upper shell 1a; the lower shell 1b is arranged below the upper shell 1a, and the compressor 4, the second heat exchanger 7 and the pressure drainage device 9 are all arranged in the lower shell 1b.

[0089] Specifically, the compressor 4 is arranged on one side of the lower shell 1b, and the second heat exchanger 7 is arranged on the other side of the lower shell 1b, so that the compressor 4 and the second heat exchanger 7 do not interfere with each other. The water collection container 10a is arranged below the second heat exchanger 7 and is suspended at the bottom of the lower shell 1b. The water receiving pan 10f is arranged above the compressor 4 and the second heat exchanger 7 to receive the condensed water generated by the first heat exchanger 5 located above them. At the same time, the fan 6 is arranged above the water receiving pan 10f to cooperate with the first heat exchanger 5.

[0090] The upper shell 1a is provided with an air inlet 2 and an air outlet 3, wherein the air outlet 3 is provided at the front side of the upper shell 1a to output cold air to the room; the air inlet 2 is provided at the front side of the upper shell 1a and is located below the air outlet 3 to introduce indoor air. The outlet end 8 is provided at the lower shell 1b.

[0091] The lower housing 1b is provided with an inlet end 12 located below the outlet end 8 for introducing water. Moreover, the outlet end 8, the first drain port 10b, and the second drain port 10d are all provided on the lower housing 1b, and the inlet end 12, the outlet end 8, the first drain port 10b, and the second drain port 10d are all located at the rear side of the lower housing 1b, such that the waterway interface and the air duct interface are respectively arranged at the rear side and the front side of the housing 1, so as to facilitate the connection of the water-cooled air conditioner 100 to the waterway and output cold air to the room.

[0092] In summary, the water-cooled air conditioner 100 provided by the embodiment of the present application realizes the dual requirements of the kitchen environment for cold air and hot water by arranging the second heat exchanger 7 and the first heat exchanger 5 and performing heat exchange between water and refrigerant. Moreover, a waterway branch 15 and a pressure drainage device 9 are connected between the hot water outlet 71b of the second heat exchange tube 7b and the outlet end 8 of the waterway pipeline 17. By using the pressure drainage device 9, it can be kept closed when the internal pressures of the waterway pipeline 17 and the second heat exchange tube 7b do not exceed the pressure threshold, thereby blocking the waterway branch 15 and preventing water from being discharged from the waterway branch 15; and it can be opened when the internal pressures of the waterway pipeline 17 and the second heat exchange tube 7b exceed the pressure threshold, so that the waterway branch 15 is opened, and thus the water flowing in the waterway pipeline 17 and the second heat exchange tube 7b can be discharged. In this way, when the outlet end 8 is opened, the hot water obtained by heat exchange can flow out through the outlet end 8 for the user to use; and when the outlet end 8 is closed, as water continuously enters the second heat exchanger 7, the pipeline pressures of the waterway pipeline 17 and the second heat exchange tube 7b will continuously rise. When the internal pressures of the waterway pipeline 17 and the second heat exchange tube 7b exceed the pressure threshold of the pressure drainage device 9, the pressure drainage device 9 will be opened, so that a part of the water in the waterway pipeline 17 and the second heat exchange tube 7b can be discharged out of the water-cooled air conditioner 100 to reduce the internal pressure of the second heat exchange tube 7b. In this way, the water-cooled air conditioner 100 can continuously introduce new water for heat exchange and continuously generate the heat-exchanged water. This not only enables the user to immediately obtain the heat-exchanged water when opening the outlet end 8, but also keeps the heat exchange efficiency between water and refrigerant stable, avoiding fluctuations in the output of the cooling capacity. Moreover, the water-cooled air conditioner 100 realizes the timely discharge of water through the pressure drainage device 9, so that the water-cooled air conditioner 100 does not need to adopt a water storage device and does not need to store water, which is beneficial to the realization of miniaturization of the volume.

[0093] Moreover, by arranging the drainage assembly 10, the water-cooled air conditioner 100 can timely discharge the condensate generated during refrigeration and the water used in the heat exchange process. By using the water collection container 10a and the pump 10c of the drainage assembly 10, the water-cooled air conditioner 100 can adapt to the drainage port layouts of various application scenarios and ensure that the condensate generated during refrigeration and the water used in the heat exchange process can be timely discharged outside the air conditioner unit.

[0094] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present application.

Claims

1. A water-cooled air conditioner, characterized in that, Comprising: A refrigerant circulation circuit, which includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger connected in sequence through refrigerant pipelines; A blower, which is used to drive indoor air to flow through the first heat exchanger for heat exchange; A water pipeline, the inlet end of the water pipeline is connected to an external cold water input port, the outlet end of the water pipeline is connected to an external water-using unit, the second heat exchanger is connected to the water pipeline, and the water in the water pipeline exchanges heat with the refrigerant in the refrigerant pipeline in the second heat exchanger; A water pipeline branch, which is connected between the second heat exchanger and the outlet end, and the water pipeline branch is used to discharge a part of the water in the water pipeline; Wherein, a pressure drainage device is provided on the water pipeline branch, and the pressure drainage device is used to control the connection and disconnection of the water pipeline branch.

2. The water-cooled air conditioner according to claim 1, wherein, The second heat exchanger includes: A first heat exchange tube, which is connected to the refrigerant pipeline; A second heat exchange tube, which is connected to the water pipeline, and The outlet end of the first heat exchange tube is arranged adjacent to the inlet end of the second heat exchange tube, so that the conveying direction of the refrigerant in the first heat exchange tube is opposite to the conveying direction of the water in the second heat exchange tube.

3. The water-cooled air conditioner according to claim 1, characterized in that, The water-cooled air conditioner further includes: A drainage assembly, which is used to collect the water discharged from the water pipeline branch; wherein, the drainage assembly includes: A water collection container, which is connected to the water pipeline branch to store the water discharged through the water pipeline branch; A first drainage port, which is arranged on the water collection container and communicated with the water collection container to discharge the water in the water collection container.

4. The water-cooled air conditioner according to claim 3, wherein, The drainage assembly further includes: A water receiving tray, which is arranged below the first heat exchanger and is used to collect the condensate water of the first heat exchanger; and The water receiving tray is communicated with the water collection container to convey the condensate water generated by the first heat exchanger into the water collection container.

5. The water-cooled air conditioner according to claim 3 or 4, characterized in that, The drainage assembly further includes: A pump, which is connected to the water collection container to pump the water stored in the water collection container; A second drainage port, which is connected to the pump and is arranged above the first drainage port; and the pump can drive the water in the water collection container to be discharged through the second drainage port.

6. The water-cooled air conditioner according to claim 5, characterized in that, The drainage assembly further includes: A water level monitoring device, which is used to monitor the height of the water in the water collection container; and the water level monitoring device is connected to the pump to control the start and stop of the pump.

7. The water-cooled air conditioner according to claim 1, characterized in that, The water-cooled air conditioner further includes: A flow rate regulating device, which is connected between the second heat exchanger and the inlet end, and the flow rate regulating device is used to adjust the flow area of the water pipeline to regulate the flow rate of the water in the water pipeline entering the second heat exchanger.

8. The water-cooled air conditioner according to claim 2, wherein The first heat exchange tube is sleeved on the outer periphery of the second heat exchange tube, and the trajectory line arranged by the first heat exchange tube coincides with the trajectory line arranged by the second heat exchange tube; and the inlet end of the first heat exchange tube is arranged adjacent to the outlet end of the second heat exchange tube.

9. The water-cooled air conditioner according to claim 8, characterized in that, The first heat exchange tube and the second heat exchange tube are arranged in a spiral manner, and the first heat exchange tube and the second heat exchange tube are disposed beside the compressor, or the first heat exchange tube and the second heat exchange tube are arranged around the compressor.

10. The water-cooled air conditioner according to claim 1, characterized in that, The water-cooled air conditioner includes a housing, and the housing includes: an upper shell, the first heat exchanger is arranged in the upper shell, and an air inlet and an air outlet are provided on the front side of the upper shell, and the air inlet is arranged below the air outlet; a lower shell, which is arranged below the upper shell, and the compressor, the second heat exchanger and the pressure drainage device are arranged in the lower shell, and the inlet end and the outlet end of the water pipeline are both arranged at the rear side of the lower shell, and the inlet end is arranged below the outlet end.

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