A multifunctional air source heat pump system

Abstract

The present invention discloses a multifunctional air source heat pump system, comprising a compressor, a first heat exchanger, a second heat exchanger, a capillary radiation air conditioning device, a fresh air dehumidifier, an air heat exchanger, a fan, a gas-liquid separator, a three-way valve and a four-way reversing valve; the above-mentioned parts are used to circulate and connect in sequence to form a first circulation loop with a refrigeration function and a second circulation loop with a heating function, respectively, which saves energy and has low cost, and is more in line with the current high standards for environmental protection, environment, low cost and integration. At the same time, the parts with air-conditioning function are not limited to the defects of operating under wet conditions in the prior art, but can be easily switched between hot environment and cold environment, thereby avoiding the massive breeding and reproduction of bacteria caused by long-term operation under wet conditions, and further ensuring the health and comfort of the human body; therefore, the present invention has obvious advantages over the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field of heat pumps, and in particular relates to a multifunctional air source heat pump system. Background Art

[0002] Air source heat pump technology is an energy-saving and environmentally friendly heating technology based on the reverse Carnot cycle principle. However, the air source heat pumps currently on the market have relatively single functions. To achieve air conditioning and domestic hot water functions, two independent non-integrated systems are required, which is costly and not economical or environmentally friendly.

[0003] Most traditional HVAC systems use cold water at 5℃~7℃ as refrigerant to cool and dehumidify the air, and dehumidification and heat removal are carried out at the same time. There are many air treatment processes, resulting in more irreversible energy losses and low energy utilization efficiency. If only the need to reduce the air temperature is considered, cold water at a temperature of 18℃~20℃ can meet the requirements. At the same time, since traditional air conditioners basically operate under wet conditions, air conditioner boxes and fan coil systems often become breeding grounds for mold, affecting human health and comfort. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an improved air source heat pump system, which can not only solve the problem of the relatively single function of the air source heat pump on the existing market and achieve multi-functions, but also can adopt a radiant air conditioning system to improve human thermal comfort.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An air source heat pump system, comprising a compressor, a first heat exchanger, a second heat exchanger, a capillary radiation air conditioning device, a fresh air dehumidifier, an air heat exchanger, a fan, a gas-liquid separator, a three-way valve and a four-way reversing valve; wherein the air source heat pump system comprises a first circulation loop with a cooling function and a second circulation loop with a heating function;

[0007] The first heat exchanger, the first passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve, the second passage of the four-way reversing valve and the air heat exchanger are sequentially cyclically connected to form the first circulation loop, and the first circulation loop also includes the second heat exchanger connected in parallel with the first heat exchanger, the capillary radiation air conditioning device connected with the first heat exchanger, and the fresh air dehumidifier connected with the second heat exchanger;

[0008] The air heat exchanger, the third passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve, the fourth passage of the four-way reversing valve and the first heat exchanger form the second circulation loop, and the second circulation loop also includes the fan arranged opposite to the air heat exchanger and performing convection heat exchange, and the capillary radiation air conditioning device connected to the first heat exchanger.

[0009] According to some preferred aspects of the present invention, the air source heat pump system also includes a third heat exchanger and a hot water tank; wherein, the air source heat pump system also includes a third circulation loop with a hot water making function, the air heat exchanger, the third passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve and the third heat exchanger are sequentially circulated and connected to form the third circulation loop, and the third circulation loop also includes the fan which is arranged opposite to the air heat exchanger and carries out convection heat exchange, and the hot water tank connected to the third heat exchanger.

[0010] Further, according to the present invention, the air source heat pump system also includes a fourth circulation loop having a hot water making function and a cooling function respectively, and the air heat exchanger, the first heat exchanger, the first passage of the four-way reversing valve, the gas-liquid separator, the compressor and the three-way valve are sequentially circulated and connected to form the fourth circulation loop, and the fourth circulation loop also includes the third heat exchanger connected in parallel with the air heat exchanger, the fan arranged opposite to the air heat exchanger and performing convection heat exchange, the second heat exchanger connected in parallel with the first heat exchanger, the capillary radiation air-conditioning device connected to the first heat exchanger, the fresh air dehumidifier connected to the second heat exchanger, and the hot water tank connected to the third heat exchanger.

[0011] Further, according to the present invention, the air source heat pump system also includes a fifth circulation loop with a hot water making function and a heating function respectively, and the air heat exchanger, the third passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve, the fourth passage of the four-way reversing valve and the first heat exchanger are sequentially circulated and connected to form a fifth circulation loop, and the fifth circulation loop also includes the third heat exchanger whose two ends are respectively connected to the three-way valve and the air heat exchanger, as well as the hot water tank connected to the third heat exchanger, the fan arranged opposite to the air heat exchanger and for convection heat exchange, and the capillary radiation air-conditioning device connected to the first heat exchanger.

[0012] According to some preferred and specific aspects of the present invention, the air source heat pump system also includes a first valve, a second valve, a third valve, a fourth valve and a fifth valve, the first valve is arranged on a pipeline connecting the first heat exchanger and the air heat exchanger, the second valve is arranged on a pipeline connecting the second heat exchanger and the first heat exchanger in parallel, and the first valve and the second valve are connected in parallel with each other, the third valve is arranged on a pipeline connecting the four-way reversing valve and the air heat exchanger, the fourth valve is arranged on a pipeline connecting the air heat exchanger and the three-way valve, and the fifth valve is arranged on a pipeline connecting the third heat exchanger and the air heat exchanger.

[0013] According to some specific aspects of the present invention, the first valve, the second valve, the third valve, the fourth valve and the fifth valve are solenoid valves respectively.

[0014] According to some preferred and specific aspects of the present invention, the air source heat pump system also includes a first throttling device, a second throttling device and a third throttling device, the first throttling device is connected in series with the first valve, the second throttling device is connected in series with the second valve, and the third throttling device is connected in series with the air heat exchanger.

[0015] According to some preferred and specific aspects of the present invention, the air source heat pump system further includes a first electric valve connected in parallel with the first throttling device and a second electric valve connected in parallel with the third throttling device.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0017] The present invention innovatively combines conventional equipment in the prior art in an organic manner, and realizes switching of multiple functions on a set of air source heat pump systems (including one or a combination of multiple functions of heating, cooling, dehumidification, and hot water making), which saves energy and has low costs. It is more in line with the current high standards for environmental protection, environment, low cost, and integration. Moreover, the components with air-conditioning functions in the present invention are not limited to the defects of operating under wet conditions in the prior art, but can be easily switched between hot environments and cold environments, thereby avoiding the massive growth and reproduction of bacteria caused by long-term operation under wet conditions, further ensuring human health and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of an air source heat pump system according to an embodiment of the present invention;

[0020] Among them, 1. compressor; 2. first heat exchanger; 3. second heat exchanger; 4. capillary radiation air conditioning device; 5. fresh air dehumidifier; 6. air heat exchanger; 7. fan; 8. gas-liquid separator; 9. three-way valve; 10. four-way reversing valve; 11. third heat exchanger; 12. hot water tank; 13. first valve; 14. second valve; 15. third valve; 16. fourth valve; 17. fifth valve; 18. first throttling device; 19. second throttling device; 20. third throttling device; 21. first electric valve; 22. second electric valve; 23. hot water pump; A, B, C, D represent a flow opening of the four-way reversing valve respectively. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, this example provides an air source heat pump system, which includes a compressor 1, a first heat exchanger 2, a second heat exchanger 3, a capillary radiation air conditioning device 4, a fresh air dehumidifier 5, an air heat exchanger 6, a fan 7, a gas-liquid separator 8, a three-way valve 9 and a four-way reversing valve 10; wherein the air source heat pump system includes a first circulation loop with a cooling function and a second circulation loop with a heating function;

[0027] The first heat exchanger 2, the first passage of the four-way reversing valve 10 ( Figure 1 BC pipeline in the middle), gas-liquid separator 8, compressor 1, three-way valve 9, second passage of four-way reversing valve 10 ( Figure 1 AD pipeline in the air heat exchanger 6) and the air heat exchanger 6 are circulated and connected in sequence to form a first circulation loop, and the first circulation loop also includes a second heat exchanger 3 connected in parallel with the first heat exchanger 2, a capillary radiation air conditioning device 4 connected to the first heat exchanger 2, and a fresh air dehumidifier 5 connected to the second heat exchanger 3;

[0028] The third passage of the air heat exchanger 6 and the four-way reversing valve 10 ( Figure 1 The DC pipeline in the gas-liquid separator 8, the compressor 1, the three-way valve 9, the fourth passage of the four-way reversing valve 10 ( Figure 1 The AB pipeline in the air exchanger 6 and the first heat exchanger 2 form a second circulation loop, and the second circulation loop also includes a fan 7 arranged opposite to the air heat exchanger 6 and performing convection heat exchange, and a capillary radiation air conditioning device 4 connected to the first heat exchanger 2.

[0029] In this embodiment, the air source heat pump system further includes a third heat exchanger 11 and a hot water tank 12; wherein the air source heat pump system further includes a third circulation loop having a hot water making function, the air heat exchanger 6, the third passage of the four-way reversing valve 10 ( Figure 1The DC pipeline in the air-liquid separator 8, the compressor 1, the three-way valve 9 and the third heat exchanger 11 are connected in a circular manner to form a third circulation loop, and the third circulation loop also includes a fan 7 which is arranged opposite to the air heat exchanger 6 and performs convection heat exchange, and a hot water tank 12 connected to the third heat exchanger 11.

[0030] Specifically, the air source heat pump system further includes a fourth circulation loop having a hot water making function and a cooling function, an air heat exchanger 6, a first heat exchanger 2, a first passage of a four-way reversing valve 10 ( Figure 1 BC pipeline in the air-liquid separator 8, the compressor 1 and the three-way valve 9 are connected in a circular manner to form a fourth circulation loop, and the fourth circulation loop also includes a third heat exchanger 11 connected in parallel with the air heat exchanger 6, a fan 7 arranged opposite to the air heat exchanger 6 and performing convection heat exchange, a second heat exchanger 3 connected in parallel with the first heat exchanger 2, a capillary radiation air-conditioning device 4 connected with the first heat exchanger 2, a fresh air dehumidifier 5 connected with the second heat exchanger 3, and a hot water tank 12 connected with the third heat exchanger 11.

[0031] Specifically, the air source heat pump system further includes a fifth circulation loop having a hot water making function and a heating function, an air heat exchanger 6, a third passage of the four-way reversing valve 10 ( Figure 1 The DC pipeline in the gas-liquid separator 8, the compressor 1, the three-way valve 9, the fourth passage of the four-way reversing valve 10 ( Figure 1 The AB pipeline in the air heat exchanger) and the first heat exchanger 2 are circulated and connected in sequence to form a fifth circulation loop, which also includes a third heat exchanger 11 whose two ends are respectively connected to the three-way valve 9 and the air heat exchanger 6, a hot water tank 12 connected to the third heat exchanger 11, a fan 7 arranged opposite to the air heat exchanger 6 and for convection heat exchange, and a capillary radiation air conditioning device 4 connected to the first heat exchanger 2.

[0032] In this embodiment, the air source heat pump system also includes a first valve 13, a second valve 14, a third valve 15, a fourth valve 16 and a fifth valve 17. The first valve 13 is arranged on the pipeline connecting the first heat exchanger 2 and the air heat exchanger 6, the second valve 14 is arranged on the pipeline connecting the second heat exchanger 3 and the first heat exchanger 2 in parallel, and the first valve 13 and the second valve 14 are connected in parallel with each other, the third valve 15 is arranged on the pipeline connecting the four-way reversing valve 10 and the air heat exchanger 6, the fourth valve 16 is arranged on the pipeline connecting the air heat exchanger 6 and the three-way valve 9, and the fifth valve 17 is arranged on the pipeline connecting the third heat exchanger 11 and the air heat exchanger 6.

[0033] In this embodiment, the first valve 13 , the second valve 14 , the third valve 15 , the fourth valve 16 and the fifth valve 17 are solenoid valves respectively.

[0034] In this embodiment, the air source heat pump system also includes a first throttling device 18, a second throttling device 19 and a third throttling device 20. The first throttling device 18 is connected in series with the first valve 13, the second throttling device 19 is connected in series with the second valve 14, and the third throttling device 20 is connected in series with the air heat exchanger 6.

[0035] In this embodiment, the air source heat pump system also includes a first electric valve 21 connected in parallel with the first throttling device 18 , a second electric valve 22 connected in parallel with the third throttling device 20 , and a hot water pump 23 arranged between the third heat exchanger 11 and the hot water tank 12 .

[0036] Here’s how it works:

[0037] The first circulation loop with refrigeration function in this example can radiate refrigeration alone, wherein the refrigerant (which can be R410a) circulates as follows: the fourth valve 16 and the fifth valve 17 are closed, and the four-way reversing valve 10 is reversed in the energized state, and the liquid refrigerant after being depressurized by the first throttling device 18 and the second throttling device 19 respectively flows into the corresponding first heat exchanger 2 and the second heat exchanger 3 for evaporation heat exchange, and the liquid refrigerant is evaporated into gaseous state, and then flows into the gas-liquid separator 8 through the first passage (BC pipeline) of the four-way reversing valve 10, Then it enters the compressor 1 for compression, and the three-way valve 9 is adjusted so that the compressed gaseous refrigerant enters the air heat exchanger 6 through the second passage (AD pipeline) of the four-way reversing valve 10. Under the action of the fan 7, forced convection heat exchange is performed with the external air, and the gaseous refrigerant condenses into liquid. The second electric valve 22 is opened to complete a cycle. Among them, the refrigerant of the capillary radiation air-conditioning device 4 is cooled in the first heat exchanger 2 and used for wall radiation cooling, and the refrigerant in the fresh air dehumidifier 5 is cooled in the second heat exchanger 3 and used to dehumidify the fresh air.

[0038] The second circulation loop with heating function in this example can heat by radiation alone, wherein the refrigerant circulation loop is as follows: the second valve 14, the fourth valve 16 and the fifth valve 17 are closed, the second electric valve 22 is closed, and the liquid refrigerant after the pressure reduction by the third throttling device 20 flows into the air heat exchanger 6, and forced convection heat exchange is performed with the external air under the action of the fan 7, the liquid refrigerant evaporates to become a gaseous refrigerant, and then flows into the gas-liquid separator 8 through the third passage (DC pipeline) of the four-way reversing valve 10, and then enters the compressor 1 for compression, adjusts the three-way valve 9, and then flows into the fourth passage (AB pipeline) of the four-way reversing valve 10, and then enters the first heat exchanger 2 for heat exchange and returns to the air heat exchanger 6 to complete a cycle; wherein the refrigerant of the capillary radiation air-conditioning device 4 is heated in the first heat exchanger 2 and used for wall radiation heating.

[0039] The third circulation loop with hot water making function in this example can make hot water alone, wherein the refrigerant circulation loop is as follows: close the first valve 13, the second valve 14 and the fourth valve 16, close the second electric valve 22, and the liquid refrigerant after the pressure reduction by the third throttling device 20 flows into the air heat exchanger 6, and performs forced convection heat exchange with the external air under the action of the fan 7, the liquid refrigerant evaporates to become gaseous refrigerant, and then flows into the gas-liquid separator 8 through the third passage (DC pipeline) of the four-way reversing valve 10, and then enters the compressor 1 for compression, and adjusts the three-way valve 9 to make the compressed gaseous refrigerant flow into the third heat exchanger 11, and returns to the air heat exchanger 6 after heat exchange, completing a cycle; wherein the hot water obtained after heat exchange in the third heat exchanger 11 is delivered to the user or stored in the hot water tank 12 under the action of the hot water pump 23.

[0040] In this example, the fourth circulation loop has the functions of hot water production and cooling respectively, wherein the refrigerant circulation loop is as follows: the second electric valve 22 is opened, the third valve 15 is closed, the gaseous refrigerant flows from the three-way valve 9 into the air heat exchanger 6 and the third heat exchanger 11 respectively for heat exchange to become liquid refrigerant, and then enters the first heat exchanger 2 and the second heat exchanger 3 for heat exchange to become gaseous refrigerant after being depressurized by the first throttling device 18 and the second throttling device 19 respectively, and flows into the gas-liquid separator 8 through the first passage (BC pipeline) of the four-way reversing valve 10, and then enters the compressor 1 for compression, and passes through the three-way valve 9 to complete a cycle; wherein, the hot water obtained after heat exchange in the third heat exchanger 11 is delivered to the user or stored in the hot water tank 12 under the action of the hot water pump 23, the refrigerant of the capillary radiation air conditioning device 4 is cooled in the first heat exchanger 2 and used for wall radiation cooling, and the refrigerant in the fresh air dehumidifier 5 is cooled in the second heat exchanger 3 and used for dehumidifying the fresh air.

[0041] The fifth circulation loop in this example has the functions of hot water production and heating respectively, wherein the refrigerant circulation loop is as follows: the second valve 14, the fourth valve 16, and the second electric valve 22 are closed, and the liquid refrigerant after the pressure reduction by the third throttling device 20 flows into the air heat exchanger 6, and the liquid refrigerant is forced to exchange heat with the external air by convection under the action of the fan 7, and the liquid refrigerant evaporates to become a gaseous refrigerant, and then flows into the gas-liquid separator 8 through the third passage (DC pipeline) of the four-way reversing valve 10, and then enters the compressor 1 for compression, and then flows into the four-way reversing valve 10 respectively. The gaseous refrigerant flows into the fourth passage (AB pipeline) and the third heat exchanger 11 of the four-way reversing valve 10, and then flows into the first heat exchanger 2 for heat exchange, and finally returns to the air heat exchanger 6 through the third heat exchanger 11 and the first heat exchanger 2 respectively, completing a cycle; wherein the refrigerant of the capillary radiation air-conditioning device 4 is heated in the first heat exchanger 2 and then used for wall radiation heating, and the hot water obtained after heat exchange in the third heat exchanger 11 is delivered to the user or stored in the hot water tank 12 by the action of the hot water pump 23.

[0042] In summary, the present invention innovatively combines conventional equipment in the prior art in an organic manner, and realizes switching of multiple functions on a set of air source heat pump systems (including one or a combination of multiple functions of heating, cooling, dehumidification, and hot water making), which saves energy and has low costs. It is more in line with the current high standards for environmental protection, environment, low cost, and integration. Moreover, the components with air-conditioning functions in the present invention are not limited to the defects of operating under wet conditions in the prior art, but can be easily switched between hot environments and cold environments, thereby avoiding the massive growth and reproduction of bacteria caused by long-term operation under wet conditions, further ensuring human health and comfort.

[0043] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An air source heat pump system, characterized in that: The air source heat pump system comprises a compressor, a first heat exchanger, a second heat exchanger, a capillary radiation air conditioning device, a fresh air dehumidifier, an air heat exchanger, a fan, a gas-liquid separator, a three-way valve and a four-way reversing valve; wherein the air source heat pump system comprises a first circulation loop having a cooling function and a dehumidification function for fresh air, a second circulation loop having a heating function, a third circulation loop having a hot water making function, a fourth circulation loop having a hot water making function, a cooling function and a dehumidification function for fresh air, and a fifth circulation loop having a hot water making function and a heating function; The first heat exchanger, the first passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve, the second passage of the four-way reversing valve and the air heat exchanger are sequentially cyclically connected to form the first circulation loop, and the first circulation loop also includes the second heat exchanger connected in parallel with the first heat exchanger, the capillary radiation air conditioning device connected with the first heat exchanger, and the fresh air dehumidifier connected with the second heat exchanger; The air heat exchanger, the third passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve, the fourth passage of the four-way reversing valve and the first heat exchanger form the second circulation loop, and the second circulation loop also includes the fan arranged opposite to the air heat exchanger and performing convection heat exchange, and the capillary radiation air conditioning device connected to the first heat exchanger; The air source heat pump system further includes a third heat exchanger and a hot water tank; the air heat exchanger, the third passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve and the third heat exchanger are sequentially circulated and connected to form the third circulation loop, and the third circulation loop further includes the fan arranged opposite to the air heat exchanger and for convection heat exchange, and the hot water tank connected to the third heat exchanger; The air heat exchanger, the first heat exchanger, the first passage of the four-way reversing valve, the gas-liquid separator, the compressor and the three-way valve are cyclically connected in sequence to form the fourth circulation loop, and the fourth circulation loop also includes the third heat exchanger connected in parallel with the air heat exchanger, the fan arranged opposite to the air heat exchanger and performing convection heat exchange, the second heat exchanger connected in parallel with the first heat exchanger, the capillary radiation air conditioning device connected with the first heat exchanger, the fresh air dehumidifier connected with the second heat exchanger, and the hot water tank connected with the third heat exchanger; The air heat exchanger, the third passage of the four-way reversing valve, the gas-liquid separator, the compressor, the three-way valve, the fourth passage of the four-way reversing valve and the first heat exchanger are circulated and connected in sequence to form a fifth circulation loop. The fifth circulation loop also includes the third heat exchanger whose two ends are respectively connected to the three-way valve and the air heat exchanger, the hot water tank connected to the third heat exchanger, the fan arranged opposite to the air heat exchanger and for convection heat exchange, and the capillary radiation air-conditioning device connected to the first heat exchanger.

2. The air source heat pump system according to claim 1, characterized in that: The air source heat pump system further includes a first valve, a second valve, a third valve, a fourth valve and a fifth valve, wherein the first valve is arranged on a pipeline connecting the first heat exchanger and the air heat exchanger, the second valve is arranged on a pipeline connecting the second heat exchanger and the first heat exchanger in parallel, and the first valve and the second valve are connected in parallel with each other, the third valve is arranged on a pipeline connecting the four-way reversing valve and the air heat exchanger, the fourth valve is arranged on a pipeline connecting the air heat exchanger and the three-way valve, and the fifth valve is arranged on a pipeline connecting the third heat exchanger and the air heat exchanger; The air source heat pump system further comprises a first throttling device, a second throttling device and a third throttling device, wherein the first throttling device is connected in series with the first valve, the second throttling device is connected in series with the second valve, and the third throttling device is connected in series with the air heat exchanger; The air source heat pump system further includes a first electric valve connected in parallel with the first throttling device and a second electric valve connected in parallel with the third throttling device.

3. The air source heat pump system according to claim 2, characterized in that: The first valve, the second valve, the third valve, the fourth valve and the fifth valve are solenoid valves respectively.

4. The air source heat pump system according to claim 2, characterized in that: The control process of the first circulation loop is as follows: the fourth valve and the fifth valve are closed, and the four-way reversing valve is reversed in the power-on state, and the liquid refrigerant after being reduced in pressure by the first throttling device and the second throttling device respectively flows into the corresponding first heat exchanger and the second heat exchanger for evaporation heat exchange, and the liquid refrigerant is evaporated into a gaseous state, and then flows into the gas-liquid separator through the first passage of the four-way reversing valve, and then enters the compressor for compression, and the three-way valve is adjusted so that the compressed gaseous refrigerant enters the air heat exchanger through the second passage of the four-way reversing valve, and forced convection heat exchange is performed with the external air under the action of the fan, and the gaseous refrigerant is condensed into a liquid state, and the second electric valve is opened to complete a cycle; wherein, the refrigerant of the capillary radiation air-conditioning device is cooled in the first heat exchanger and used for wall radiation cooling, and the refrigerant in the fresh air dehumidifier is cooled in the second heat exchanger and used to dehumidify the fresh air.

5. The air source heat pump system according to claim 2, characterized in that: The control process of the second circulation loop is as follows: close the second valve, the fourth valve and the fifth valve, close the second electric valve, and the liquid refrigerant after the pressure reduction by the third throttling device flows into the air heat exchanger, and under the action of the fan, forced convection heat exchange is carried out with the external air, and the liquid refrigerant evaporates to become gaseous refrigerant, and then flows into the gas-liquid separator through the third passage of the four-way reversing valve, and then enters the compressor for compression, adjusts the three-way valve, and then flows into the fourth passage of the four-way reversing valve, and then enters the first heat exchanger for heat exchange and returns to the air heat exchanger to complete a cycle; wherein the refrigerant of the capillary radiation air-conditioning device is heated in the first heat exchanger and used for wall radiation heating.

6. The air source heat pump system according to claim 2, characterized in that: The control process of the third circulation loop is as follows: close the first valve, the second valve and the fourth valve, close the second electric valve, and the liquid refrigerant after the pressure reduction by the third throttling device flows into the air heat exchanger, and under the action of the fan, forced convection heat exchange is performed with the external air, the liquid refrigerant evaporates to become gaseous refrigerant, and then flows into the gas-liquid separator through the third passage of the four-way reversing valve, and then enters the compressor for compression, and the three-way valve is adjusted to make the compressed gaseous refrigerant flow into the third heat exchanger, and return to the air heat exchanger after heat exchange, completing a cycle; wherein the hot water obtained after heat exchange in the third heat exchanger is delivered to the user or stored in the hot water tank under the action of the hot water pump.

7. The air source heat pump system according to claim 2, characterized in that: The control process of the fourth circulation loop is as follows: open the second electric valve, close the third valve, and the gaseous refrigerant flows from the three-way valve into the air heat exchanger and the third heat exchanger respectively to become liquid refrigerant after heat exchange, and then enters the first heat exchanger and the second heat exchanger to become gaseous refrigerant after being reduced in pressure by the first throttling device and the second throttling device respectively, and then flows into the gas-liquid separator through the first passage of the four-way reversing valve, and then enters the compressor for compression, and passes into the three-way valve to complete a cycle; wherein, the hot water obtained after heat exchange in the third heat exchanger is delivered to the user or stored in a hot water tank under the action of a hot water pump, the refrigerant of the capillary radiation air-conditioning device is cooled in the first heat exchanger and used for wall radiation cooling, and the refrigerant in the fresh air dehumidifier is cooled in the second heat exchanger and used to dehumidify the fresh air.

8. The air source heat pump system according to claim 2, characterized in that: The control process of the fifth circulation loop is as follows: the second valve, the fourth valve, and the second electric valve are closed, and the liquid refrigerant after the pressure reduction by the third throttling device flows into the air heat exchanger, and forced convection heat exchange is performed with the external air under the action of the fan. The liquid refrigerant evaporates and becomes a gaseous refrigerant, and then flows into the gas-liquid separator through the third passage of the four-way reversing valve, and then enters the compressor for compression, and then flows into the fourth passage of the four-way reversing valve and the third heat exchanger respectively. The gaseous refrigerant after flowing into the third passage of the four-way reversing valve flows into the first heat exchanger for heat exchange, and finally returns to the air heat exchanger through the third heat exchanger and the first heat exchanger respectively, completing a cycle; wherein the refrigerant of the capillary radiation air-conditioning device is heated in the first heat exchanger and used for wall radiation heating, and the hot water obtained after heat exchange in the third heat exchanger is delivered to the user or stored in the hot water tank under the action of the hot water pump.

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