A heat pump system and clothing treatment equipment

Abstract

This application provides a heat pump system and a clothing processing device. The heat pump system includes: a compressor assembly having a first exhaust port and a second exhaust port, wherein the exhaust pressure of the first exhaust port is less than the exhaust pressure of the second exhaust port; a first condenser, a second condenser, and a third condenser; a first throttling component and a second throttling component; and an evaporator. The heat pump system operates in two states: a first operating state and a second operating state. This application's heat pump system and clothing processing device, by switching between the first and second operating states, adjust the heat exchange area of ​​the condenser at different operating pressures to improve energy efficiency and achieve energy savings.

Description

Technical Field

[0001] This application relates to the field of heat exchange equipment technology, and more particularly to a heat pump system and clothing processing equipment. Background Technology

[0002] In refrigeration and heat pump heating, vapor compression systems utilizing the reverse Carnot cycle are widely used. The main structure of such systems includes a compressor, condenser, throttling device, and evaporator. The basic working principle is as follows: the vapor compression system is filled with refrigerant. The refrigerant is compressed by the compressor into a high-temperature, high-pressure gas. After being condensed in the condenser, it becomes a high-pressure liquid phase. Then, it is throttled by the throttling device into a low-temperature, low-pressure liquid. In the evaporator, it absorbs heat and heats up, becoming a low-pressure gas, which finally enters the compressor's suction port. Depending on the application, if the heat from the high-temperature, high-pressure gas in the condenser is utilized, it is a heat pump system; if the cooling capacity of the low-temperature, low-pressure liquid refrigerant in the evaporator is utilized, it is a refrigeration system.

[0003] In related technologies, a cascade heat exchange system is used to heat or cool the heat exchange medium multiple times during heating or cooling with large temperature changes in order to reduce energy loss. However, its energy-saving efficiency still cannot meet the design requirements. Summary of the Invention

[0004] In view of this, the embodiments of this application aim to provide a heat pump system and clothing processing equipment that can improve energy efficiency and achieve energy saving.

[0005] To achieve the above objectives, this application provides a heat pump system, comprising: a compressor assembly having a first exhaust port and a second exhaust port, wherein the exhaust pressure of the first exhaust port is less than the exhaust pressure of the second exhaust port; a first condenser, a second condenser, and a third condenser; a first throttling component and a second throttling component; and an evaporator. The heat pump system operates in the following states: a first state: the first exhaust port, the third condenser, the first condenser, the first throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction; the second exhaust port, the second condenser, the second throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction; a second state: the first exhaust port, the first condenser, the first throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction; the second exhaust port, the second condenser, the third condenser, the second throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction.

[0006] In some implementation schemes, the operating states of the heat pump system include: a third operating state in which the first exhaust port, the first condenser, the first throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction; and the second exhaust port, the second condenser, the second throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction.

[0007] In some implementations, the first condenser and the third condenser are connected in series in the first operating state.

[0008] In some implementations, in the second operating state, the second condenser and the third condenser are connected in series.

[0009] In some implementations, the heat pump system includes: a first branch connecting the first exhaust port and the first throttling device, wherein the first condenser is disposed on the first branch; a second branch connecting the second exhaust port and the second throttling device, wherein the second condenser is disposed on the second branch; a third branch wherein the third condenser is disposed on the third branch; and a switching valve assembly for selectively connecting the third branch to the first branch or the second branch, such that refrigerant in the first branch or the second branch flows through the third condenser.

[0010] In some implementations, the switching valve assembly includes a first switching valve disposed on the first branch, a second switching valve disposed on the second branch, and a third switching valve disposed on the third branch; one port of the first switching valve and one port of the second switching valve are both connected to the inlet of the third branch, and the third switching valve is disposed downstream of the third condenser and is used to selectively guide the refrigerant flowing through the third condenser to the first branch or the second branch.

[0011] In some implementations, along the refrigerant flow direction, the first switching valve and the first condenser are connected in series on the first branch, and the second condenser and the second switching valve are connected in series on the second branch; the inlet of the third condenser is connected to the first switching valve and the second switching valve; the outlet of the third condenser is connected to the third switching valve, and the third switching valve is connected to the first branch between the first switching valve and the first condenser, and to the second branch between the second switching valve and the second throttling device.

[0012] In some implementations, the compressor assembly includes a first compressor and a second compressor, the first compressor having a first exhaust port and the second compressor having a second exhaust port.

[0013] A garment processing device includes a circulating air duct and a heat pump system; along the airflow direction, the evaporator, the first condenser, the third condenser, and the second condenser are sequentially arranged in the circulating air duct.

[0014] In some implementations, in the first operating state, the refrigerant flowing out of the first exhaust port flows sequentially through the third condenser and the first condenser; and / or, in the second operating state, the refrigerant flowing out of the second exhaust port flows sequentially through the second condenser and the third condenser.

[0015] The heat pump system and clothing processing equipment of this application embodiment include a first operating state and a second operating state. In the first operating state: the first exhaust port, the third condenser, the first condenser, the first throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction; the second exhaust port, the second condenser, the second throttling component, and the evaporator are also arranged sequentially along the refrigerant flow direction. In the second operating state: the first exhaust port, the first condenser, the first throttling component, and the evaporator are arranged sequentially along the refrigerant flow direction; the second exhaust port, the second condenser, the third condenser, the second throttling component, and the evaporator are also arranged sequentially along the refrigerant flow direction. When the temperature and humidity of the external airflow change, switching between the first and second operating states allows refrigerant of different pressures to flow into the third condenser, thereby adjusting the heat exchange area of ​​the condenser at different pressures to improve energy efficiency and achieve energy saving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a heat pump system according to an embodiment of this application;

[0017] Figure 2 for Figure 1 The diagram shows the heat pump system in its first operating state.

[0018] Figure 3 for Figure 1 The diagram shows the heat pump system in its second operating state.

[0019] Figure 4 for Figure 1 The diagram shows the heat pump system in its third operating state.

[0020] Explanation of reference numerals in the attached figures

[0021] Compressor assembly 10; First exhaust port 11; Second exhaust port 12; First compressor 13; Second compressor 14;

[0022] First condenser 20; Second condenser 30; Third condenser 40; First throttling component 50; Second throttling component 60; Evaporator 70;

[0023] First branch 80a; Second branch 80b; Third branch 80c; Switching valve group 90;

[0024] First switching valve 91; second switching valve 92; third switching valve 93. Detailed Implementation

[0025] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0026] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Please refer to Figure 1 This application provides a heat pump system that can adjust the heat exchange area of ​​the condenser at different operating pressures to achieve the best energy-saving effect.

[0028] The heat pump system includes a compressor assembly 10, a first condenser 20, a second condenser 30, a third condenser 40, a first throttling component 50, a second throttling component 60, and an evaporator 70.

[0029] The compressor assembly 10 is used to compress gaseous refrigerant. Here, the refrigerant can be common types such as R12, R22 Freon, R410a, R134a, R407c, alkanes, ammonia, carbon dioxide, etc. The compressor assembly 10 has a first discharge port 11 and a second discharge port 12, from which the compressed refrigerant is discharged.

[0030] It should be noted that the exhaust pressure of the first exhaust port 11 is less than that of the second exhaust port 12. In this embodiment, the first exhaust port 11 is a medium-pressure exhaust port, and the second exhaust port 12 is a high-pressure exhaust port.

[0031] The first condenser 20, the second condenser 30, and the third condenser 40 can be copper tubes with fins, containing flowing refrigerant. The first condenser 20, the second condenser 30, and the third condenser 40 are used to liquefy the refrigerant, releasing heat to heat an external medium such as air. The first throttling component 50 and the second throttling component 60 are used to throttle the refrigerant into a low-temperature, low-pressure liquid, creating conditions for refrigerant evaporation. The evaporator 70 is used to vaporize the refrigerant, absorbing heat to cool the external airflow. Moisture in the external airflow condenses at the evaporator 70, thereby removing water vapor from the airflow.

[0032] The operating states of a heat pump system include a first operating state, a second operating state, and a third operating state.

[0033] Please refer to Figure 2 In the first operating state: the first exhaust port 11, the third condenser 40, the first condenser 20, the first throttling component 50, and the evaporator 70 are arranged sequentially along the refrigerant flow direction. The second exhaust port 12, the second condenser 30, the second throttling component 60, and the evaporator 70 are arranged sequentially along the refrigerant flow direction.

[0034] Here, the arrangement order of the third condenser 40 and the first condenser 20 is not limited. That is to say, the first exhaust port 11, the first condenser 20, the third condenser 40, the first throttling component 50, and the evaporator 70 can be arranged in sequence along the refrigerant flow direction; the first exhaust port 11, the third condenser 40, the first condenser 20, the first throttling component 50, and the evaporator 70 can also be arranged in sequence along the refrigerant flow direction; or the first condenser 20 and the third condenser 40 can be arranged in parallel.

[0035] Understandably, the medium-temperature, medium-pressure gaseous refrigerant is discharged from the first exhaust port 11, flows into the first condenser 20 and the third condenser 40, and liquefies, releasing heat. This allows the first condenser 20 and the third condenser 40 to heat the external airflow, increasing its temperature. The low-temperature, medium-pressure liquid refrigerant flows out from the first condenser 20 and the third condenser 40, flows into the first throttling component 50, and becomes a low-temperature, low-pressure liquid refrigerant. The low-temperature, low-pressure liquid refrigerant flows into the evaporator 70, where it absorbs heat and heats up, becoming a low-pressure gaseous refrigerant. The external airflow cools at the evaporator 70, and water vapor in the external airflow condenses, thus drying the external airflow. The low-pressure gaseous refrigerant flows back to the compressor assembly 10.

[0036] High-temperature, high-pressure gaseous refrigerant flows into the second condenser 30 from the second exhaust port 12. Since the exhaust pressure at the second exhaust port 12 is greater than that at the first exhaust port 11, the temperature of the refrigerant discharged from the second exhaust port 12 is higher than that discharged from the first exhaust port 11. This results in a higher surface temperature for the second condenser 30, further heating the external airflow passing through the first condenser 20 and the third condenser 40. The low-temperature, high-pressure liquid refrigerant exiting the second condenser 30 flows into the second throttling component 60, resulting in a low-temperature, low-pressure liquid refrigerant. The low-temperature, low-pressure liquid refrigerant exiting the second throttling component 60 merges with the low-temperature, low-pressure liquid refrigerant exiting the first throttling component 50, and together flows into the evaporator 70. In the evaporator 70, it absorbs heat, heats up, and becomes a low-pressure gaseous refrigerant before flowing back to the compressor assembly 10.

[0037] Please refer to Figure 3 In the second operating state: the first exhaust port 11, the first condenser 20, the first throttling component 50, and the evaporator 70 are arranged sequentially along the refrigerant flow direction. The second exhaust port 12, the second condenser 30, the third condenser 40, the second throttling component 60, and the evaporator 70 are arranged sequentially along the refrigerant flow direction.

[0038] Here, the arrangement order of the second condenser 30 and the third condenser 40 is not limited. That is, the second exhaust port 12, the third condenser 40, the second condenser 30, the second throttling component 60, and the evaporator 70 can be arranged in sequence along the refrigerant flow direction; the second exhaust port 12, the second condenser 30, the third condenser 40, the second throttling component 60, and the evaporator 70 can also be arranged in sequence along the refrigerant flow direction; or the third condenser 40 and the second condenser 30 can be arranged in parallel.

[0039] Understandably, the medium-temperature, medium-pressure gaseous refrigerant is discharged from the first exhaust port 11, flows into the first condenser 20, and liquefies, releasing heat. This causes the first condenser 20 to heat the external airflow, increasing its temperature. The low-temperature, medium-pressure liquid refrigerant flows out of the first condenser 20, flows into the first throttling component 50, and becomes a low-temperature, low-pressure liquid refrigerant. This low-temperature, low-pressure liquid refrigerant flows into the evaporator 70, where it absorbs heat and heats up, becoming a low-pressure gaseous refrigerant. The external airflow cools at the evaporator 70, and water vapor in the external airflow condenses, thus drying the external airflow. The low-pressure gaseous refrigerant flows back to the compressor assembly 10.

[0040] High-temperature, high-pressure gaseous refrigerant flows from the second exhaust port 12 into the third condenser 40 and the second condenser 30. Since the exhaust pressure at the second exhaust port 12 is greater than that at the first exhaust port 11, the temperature of the refrigerant discharged from the second exhaust port 12 is higher than that discharged from the first exhaust port 11. This results in the surface temperatures of the third condenser 40 and the second condenser 30 being higher than those of the first condenser 20, further heating the external airflow flowing through the first condenser 20. The low-temperature, high-pressure liquid refrigerant flowing out of the third condenser 40 and the second condenser 30 flows into the second throttling component 60, resulting in a low-temperature, low-pressure liquid refrigerant. The low-temperature, low-pressure liquid refrigerant flowing out of the second throttling component 60 merges with the low-temperature, low-pressure liquid refrigerant flowing out of the first throttling component 50, and together flows into the evaporator 70. In the evaporator 70, it absorbs heat, heats up, and becomes a low-pressure gaseous refrigerant before flowing back to the compressor assembly 10.

[0041] In the above embodiments, the heat pump system operates in two states: a first state and a second state. In the first state, the third condenser 40 and the first condenser 20 are medium-pressure condensers, and the second condenser 30 is a high-pressure condenser. In the second state, the first condenser 20 is a medium-pressure condenser, and the third condenser 40 and the second condenser 30 are high-pressure condensers. Therefore, compared to the first state, the heat exchange area of ​​the high-pressure condenser and the heat exchange area of ​​the medium-pressure condenser change. It should be noted that "medium pressure" and "high pressure" are relative terms and do not specify a numerical range of pressure.

[0042] When the temperature and humidity of the external airflow change, the heat exchange area of ​​the medium-pressure condenser and the heat exchange area of ​​the high-pressure condenser can be adjusted by switching between the first and second operating states, thereby achieving energy saving.

[0043] In this embodiment, when the external airflow is hot and humid, the heat pump system switches to the first operating state to achieve energy saving. When the external airflow is cool and humid, the heat pump system switches to the second operating state to achieve energy saving.

[0044] For example, please refer to Figure 4 In the third operating state: the first exhaust port 11, the first condenser 20, the first throttling component 50, and the evaporator 70 are arranged sequentially along the refrigerant flow direction. The second exhaust port 12, the second condenser 30, the second throttling component 60, and the evaporator 70 are arranged sequentially along the refrigerant flow direction.

[0045] Understandably, the medium-temperature, medium-pressure gaseous refrigerant is discharged from the first exhaust port 11, flows into the first condenser 20, and liquefies, releasing heat. This causes the first condenser 20 to heat the external airflow, increasing its temperature. The low-temperature, medium-pressure liquid refrigerant flows out of the first condenser 20, flows into the first throttling component 50, and becomes a low-temperature, low-pressure liquid refrigerant. This low-temperature, low-pressure liquid refrigerant then flows into the evaporator 70.

[0046] High-temperature, high-pressure gaseous refrigerant flows into the second condenser 30 from the second exhaust port 12. Because the exhaust pressure at the second exhaust port 12 is greater than that at the first exhaust port 11, the surface temperature of the second condenser 30 is higher than that of the first condenser 20, further heating the external airflow passing through the first condenser 20. Low-temperature, high-pressure liquid refrigerant flowing out of the second condenser 30 flows into the second throttling component 60, resulting in low-temperature, low-pressure liquid refrigerant. The low-temperature, low-pressure liquid refrigerant flowing out of the second throttling component 60 merges with the low-temperature, low-pressure liquid refrigerant flowing out of the first throttling component 50, and together flows into the evaporator 70. In the evaporator 70, it absorbs heat, heats up, and becomes low-pressure gaseous refrigerant before flowing back to the compressor assembly 10.

[0047] Here, the third condenser 40 does not participate in the operation. Compared with the first and second operating states, the total area of ​​the condenser participating in heating the external airflow is reduced, thus reducing the heating power consumption.

[0048] For example, in the first operating state, the first condenser 20 and the third condenser 40 are connected in series. That is, in the first operating state, the refrigerant flowing into the first condenser 20 and the third condenser 40 can maintain a relatively stable pressure. It should be noted that the refrigerant can flow through the first condenser 20 and the third condenser 40 in sequence, or it can flow through the third condenser 40 and the first condenser 20 in sequence.

[0049] For example, in the second operating state, the second condenser 30 and the third condenser 40 are connected in series. That is, in the second operating state, the refrigerant flowing into the second condenser 30 and the third condenser 40 can maintain a relatively stable pressure. It should be noted that the refrigerant can flow through the second condenser 30 and the third condenser 40 in sequence, or it can flow through the third condenser 40 and the second condenser 30 in sequence.

[0050] For example, please refer to Figures 1-3 The heat pump system includes a first branch 80a, a second branch 80b, a third branch 80c, and a switching valve group 90.

[0051] The first branch 80a connects the first exhaust port 11 and the first throttling component 50, and the first condenser 20 is disposed on the first branch 80a. It can be understood that the first exhaust port 11 is a medium-pressure exhaust port, and the medium-pressure refrigerant is discharged from the first exhaust port 11 and enters the first branch 80a, so that the first branch 80a is at medium pressure. The first condenser 20 disposed on the first branch 80a is a medium-pressure condenser.

[0052] The second branch 80b is connected to the second exhaust port 12 and the second throttling component 60, and the second condenser 30 is disposed on the second branch 80b. It can be understood that the second exhaust port 12 is a high-pressure exhaust port, and high-pressure refrigerant is discharged from the second exhaust port 12 and enters the second branch 80b, making the second branch 80b high-pressure. The second condenser 30 disposed on the second branch 80b is a high-pressure condenser.

[0053] The third condenser 40 is disposed on the third branch 80c. The switching valve assembly 90 is used to selectively connect the third branch 80c to the first branch 80a or the second branch 80b, so that the refrigerant on the first branch 80a or the second branch 80b flows through the third condenser 40.

[0054] Specifically, if the third branch 80c is switched to the first branch 80a through the switching valve group 90, the medium-pressure refrigerant flows into the third condenser 40. At this time, the heat exchange area of ​​the medium-pressure condenser is the sum of the heat exchange areas of the first condenser 20 and the third condenser 40, and the heat exchange area of ​​the high-pressure condenser is the heat exchange area of ​​the second condenser 30.

[0055] If the third branch 80c is switched to the second branch 80b through the switching valve group 90, the high-pressure refrigerant flows into the third condenser 40. At this time, the heat exchange area of ​​the medium-pressure condenser is the same as that of the first condenser 20, and the heat exchange area of ​​the high-pressure condenser is the sum of the heat exchange areas of the second condenser 30 and the third condenser 40.

[0056] Here, the third condenser 40 is a variable pressure condenser, which is adapted to the working environment of medium-pressure and high-pressure refrigerants.

[0057] For example, please refer to Figures 1-3 The switching valve assembly 90 includes a first switching valve 91 disposed on the first branch 80a, a second switching valve 92 disposed on the second branch 80b, and a third switching valve 93 disposed on the third branch 80c.

[0058] One port of the first switching valve 91 and one port of the second switching valve 92 are both connected to the inlet of the third branch 80c. In the first operating state, the refrigerant on the first branch 80a flows into the third branch 80c through the first switching valve 91. In the second operating state, the refrigerant on the second branch 80b flows into the third branch 80c through the second switching valve 92.

[0059] The third switching valve 93 is located downstream of the third condenser 40 and is used to selectively direct the refrigerant flowing through the third condenser 40 to the first branch 80a or the second branch 80b.

[0060] In the first operating state, the refrigerant flowing into the third branch 80c flows sequentially through the third condenser 40 and the third switching valve 93, and is directed to the first branch 80a. The refrigerant flowing into the third branch 80c flows sequentially through the third condenser 40 and the third switching valve 93, and is directed to the second branch 80b.

[0061] Among them, the first switching valve 91, the second switching valve 92, and the third switching valve 93 can be three-way valves.

[0062] For example, along the refrigerant flow direction, the first switching valve 91 and the first condenser 20 are connected in series in the first branch 80a, and the second condenser 30 and the second switching valve 92 are connected in series in the second branch 80b.

[0063] The inlet of the third condenser 40 is connected to the first switching valve 91 and the second switching valve 92. The outlet of the third condenser 40 is connected to the third switching valve 93. The third switching valve 93 is connected to the first branch 80a between the first switching valve 91 and the first condenser 20, and to the second branch 80b between the second switching valve 92 and the second throttling component 60.

[0064] In some embodiments, in the first operating state, the refrigerant flowing into the first branch 80a through the first exhaust port 11 flows into the third condenser 40 of the third branch 80c through the first switching valve 91, and the refrigerant flowing out of the third condenser 40 flows back into the first condenser 20 through the third switching valve 93, and then flows to the first throttling component 50 after flowing out of the first condenser 20; the refrigerant flowing into the second branch 80b through the second exhaust port 12 flows into the second throttling component 60 through the second condenser 30 and the second switching valve 92.

[0065] In some embodiments, in the second operating state, the refrigerant flowing into the first branch 80a through the first exhaust port 11 flows into the first condenser 20 through the first switching valve 91, and flows out of the first condenser 20 to the first throttling component 50; the refrigerant flowing into the second branch 80b through the second exhaust port 12 flows into the second condenser 30, and flows out of the second condenser 30 to the third condenser 40 of the third branch 80c through the second switching valve 92; the refrigerant flowing out of the third condenser 40 flows into the second throttling component 60 through the third switching valve 93.

[0066] For example, the compressor assembly 10 includes a first compressor 13 and a second compressor 14, the first compressor 13 having a first discharge port 11 and the second compressor 14 having a second discharge port 12. Here, the first compressor 13 is a medium-pressure compressor. The second compressor 14 is a high-pressure compressor.

[0067] In other embodiments, the compressor assembly 10 is a dual exhaust pressure compressor, which includes an intake port, a second exhaust port 12 adapted to high exhaust pressure, and a first exhaust port 11 adapted to relatively low exhaust pressure.

[0068] This application also provides a garment processing device, which can be a dryer or a washer-dryer combo.

[0069] The garment processing equipment includes a circulating air duct and a heat pump system. The airflow circulates within the circulating air duct. Along the airflow direction, the evaporator 70, the first condenser 20, the third condenser 40, and the second condenser 30 are sequentially arranged in the circulating air duct.

[0070] Understandably, the garment processing equipment includes a garment processing drum, which is located in a circulating air duct. The garments to be dried are contained in the garment processing drum. The airflow exiting the garment processing drum flows through the evaporator 70, which cools and dehumidifies the airflow. Then, the airflow is heated sequentially by the first condenser 20, the third condenser 40, and the second condenser 30 to obtain a dry hot airflow, which is then sent back to the garment processing drum to dry the garments.

[0071] The refrigerant temperatures in the first condenser 20 and the second condenser 30 are different, which enables cascade heating of the airflow and improves energy efficiency.

[0072] In the first operating state, the refrigerant flowing from the first exhaust port 11 flows into the third condenser 40 and the first condenser 20, while the refrigerant flowing from the second exhaust port 12 flows into the second condenser 30. In the second operating state, the refrigerant flowing from the first exhaust port 11 flows into the first condenser 20, and the refrigerant flowing from the second exhaust port 12 flows into the second condenser 30 and the third condenser 40. By switching between different operating states, the pressure and temperature of the refrigerant in the third condenser 40 are different, thereby adjusting the heat exchange area of ​​the condenser operating at different pressures and further improving energy efficiency.

[0073] For example, please refer to Figures 1-3 In the first operating state, the refrigerant flowing out of the first exhaust port 11 flows sequentially through the third condenser 40 and the first condenser 20. And / or, in the second operating state, the refrigerant flowing out of the second exhaust port 12 flows sequentially through the second condenser 30 and the third condenser 40.

[0074] Understandably, in the first operating state, the dry airflow sequentially flows through the first condenser 20 and the third condenser 40; the refrigerant sequentially flows through the third condenser 40 and the first condenser 20. This ensures that the refrigerant in the first condenser 20, which the dry airflow first contacts, flows out of the third condenser 40, and the refrigerant in the third condenser 40, which the dry airflow contacts later, flows out of the first exhaust port 11. In other words, the dry airflow first contacts the relatively cooler first condenser 20 and then the relatively warmer third condenser 40, thus achieving better gradient heat transfer and higher heat transfer efficiency.

[0075] In the second operating state, the dry gas flow sequentially through the third condenser 40 and the second condenser 30; the refrigerant flows sequentially through the second condenser 30 and the third condenser 40. This ensures that the refrigerant in the third condenser 40, which the dry gas flow contacts first, flows out of the second condenser 30, and the refrigerant in the second condenser 30, which the dry gas flow contacts later, flows out of the second exhaust port 12. In other words, the dry gas flow first contacts the relatively cooler third condenser 40, and then contacts the relatively warmer second condenser 30, thus achieving better gradient heat exchange and higher heat exchange efficiency.

[0076] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0077] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A heat pump system, characterized in that, The heat pump system includes: The compressor assembly (10) has a first exhaust port (11) and a second exhaust port (12), wherein the exhaust pressure of the first exhaust port (11) is less than the exhaust pressure of the second exhaust port (12); First condenser (20), second condenser (30), third condenser (40); First throttling component (50), second throttling component (60); Evaporator (70); The operating states of the heat pump system include: First operating state: The first exhaust port (11), the third condenser (40), the first condenser (20), the first throttling component (50), and the evaporator (70) are arranged sequentially along the refrigerant flow direction; the second exhaust port (12), the second condenser (30), the second throttling component (60), and the evaporator (70) are arranged sequentially along the refrigerant flow direction; Second operating state: The first exhaust port (11), the first condenser (20), the first throttling component (50), and the evaporator (70) are arranged sequentially along the refrigerant flow direction; the second exhaust port (12), the second condenser (30), the third condenser (40), the second throttling component (60), and the evaporator (70) are arranged sequentially along the refrigerant flow direction.

2. A heat pump system as described in claim 1, characterized in that, The operating states of the heat pump system include: Third working state: The first exhaust port (11), the first condenser (20), the first throttling component (50), and the evaporator (70) are arranged in sequence along the refrigerant flow direction; the second exhaust port (12), the second condenser (30), the second throttling component (60), and the evaporator (70) are arranged in sequence along the refrigerant flow direction.

3. A heat pump system as described in claim 1, characterized in that, In the first operating state, the first condenser (20) and the third condenser (40) are connected in series.

4. A heat pump system as described in claim 1, characterized in that, In the second operating state, the second condenser (30) and the third condenser (40) are connected in series.

5. A heat pump system as described in claim 1, characterized in that, The heat pump system includes: The first branch (80a) is connected to the first exhaust port (11) and the first throttling component (50), and the first condenser (20) is disposed on the first branch (80a). The second branch (80b) is connected to the second exhaust port (12) and the second throttling component (60), and the second condenser (30) is disposed on the second branch (80b); The third branch (80c) is provided on the third branch (80c); A switching valve assembly (90) is used to selectively connect the third branch (80c) to the first branch (80a) or the second branch (80b) so that the refrigerant on the first branch (80a) or the second branch (80b) flows through the third condenser (40).

6. A heat pump system as described in claim 5, characterized in that, The switching valve group (90) includes a first switching valve (91) disposed on the first branch (80a), a second switching valve (92) disposed on the second branch (80b), and a third switching valve (93) disposed on the third branch (80c); One port of the first switching valve (91) and one port of the second switching valve (92) are both connected to the inlet of the third branch (80c). The third switching valve (93) is located downstream of the third condenser (40) and is used to selectively guide the refrigerant flowing through the third condenser (40) to the first branch (80a) or the second branch (80b).

7. A heat pump system as described in claim 6, characterized in that, Along the refrigerant flow direction, the first switching valve (91) and the first condenser (20) are connected in series on the first branch (80a), and the second condenser (30) and the second switching valve (92) are connected in series on the second branch (80b). The inlet of the third condenser (40) is connected to the first switching valve (91) and the second switching valve (92); The outlet of the third condenser (40) is connected to the third switching valve (93), which is connected to the first branch (80a) between the first switching valve (91) and the first condenser (20), and to the second branch (80b) between the second switching valve (92) and the second throttling component (60).

8. A heat pump system as described in claim 1, characterized in that, The compressor assembly (10) includes a first compressor (13) and a second compressor (14), the first compressor (13) having a first exhaust port (11) and the second compressor (14) having a second exhaust port (12).

9. A garment processing device, characterized in that, The garment processing equipment includes a circulating air duct and a heat pump system as described in any one of claims 1-8; Along the airflow direction, the evaporator (70), the first condenser (20), the third condenser (40), and the second condenser (30) are sequentially arranged in the circulating air duct.

10. The garment processing device as described in claim 9, characterized in that, In the first operating state, the refrigerant flowing out from the first exhaust port (11) flows sequentially through the third condenser (40), the first condenser (20); and / or, In the second operating state, the refrigerant flowing out from the second exhaust port (12) flows sequentially through the second condenser (30) and the third condenser (40).

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