CN211476361U - Multifunctional air source heat pump system - Google Patents

Abstract

The utility model discloses a multifunctional air source heat pump system, comprising a compressor, a first heat exchanger, a second heat exchanger, a capillary radiation air conditioner, a fresh air dehumidifier, an air heat exchanger, a fan and a gas-liquid separator , three-way valve and four-way reversing valve; the above-mentioned parts are used to circulate and connect in sequence to form a first circulation loop with a cooling function and a second circulation loop with a heating function, which saves energy and has low cost, which is more in line with the current requirements for The high standard requirements of environmental protection, environment, low cost and integration, and the components with air conditioning function are not limited to the defects of running in wet conditions in the prior art, but can easily switch between hot and cold environments, Further, the bacteria can be prevented from multiplying and multiply due to long-term operation under wet conditions, and the health and comfort of the human body can be further ensured; therefore, the present invention has obvious advantages compared with the prior art.

Description

A multifunctional air source heat pump system

technical field

The utility model belongs to the technical field of heat pumps, in particular to a multifunctional air source heat pump system.

Background technique

Air source heat pump technology is an energy-saving and environmentally friendly heating technology based on the principle of reverse Carnot cycle. However, the functions of the air source heat pump currently on the market are relatively simple, and two independent non-integrated systems are required to realize the air conditioning function and the domestic hot water function, which is costly and uneconomical and environmentally friendly.

Most of the traditional HVAC systems use cold water at 5°C to 7°C as a 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. Low. However, if only the need to reduce the air temperature is considered, cold water with a temperature of 18°C to 20°C can meet the requirements. At the same time, since traditional air conditioners basically operate under wet conditions, the air conditioner box and fan coil system often become breeding places for mold, affecting human health and comfort.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and provide an improved air source heat pump system, which can not only solve the problem that the function of the air source heat pump in the existing market is relatively single, realize multi-function, but also can adopt radiant air conditioners. The system improves the thermal comfort of the human body.

In order to achieve the above object, the technical scheme adopted by the present utility model is:

An air source heat pump system comprising a compressor, a first heat exchanger, a second heat exchanger, a capillary radiant air conditioner, 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 includes a first circulation loop with a cooling function and a second circulation loop with 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 exchangers are connected in sequence 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, and the first heat exchanger. the capillary radiant air conditioner communicated with the heat exchanger, and the fresh air dehumidifier communicated 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 all The first heat exchanger forms the second circulation loop, and the second circulation loop also includes the fan arranged opposite the air heat exchanger and convecting heat exchange, and a fan communicating with the first heat exchanger. The capillary radiant air conditioner.

According to some preferred aspects of the present invention, the air source heat pump system further includes a third heat exchanger and a hot water tank; wherein the air source heat pump system further includes a third circulation loop with a function of making hot water, and the 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 in cyclic communication in sequence to form the third A circulation loop, the third circulation loop further includes the fan disposed opposite the air heat exchanger and exchanging heat by convection, and the hot water tank communicated with the third heat exchanger.

Further, according to the present utility model, the air source heat pump system further comprises a fourth circulation loop with a hot water heating function and a cooling function respectively, the air heat exchanger, the first heat exchanger, the four-way The first passage of the reversing valve, the gas-liquid separator, the compressor and the three-way valve are connected in sequence to form the fourth circulation loop, and the fourth circulation loop also includes heat exchange with the air. The third heat exchanger connected in parallel with the air heat exchanger, the fan opposite to the air heat exchanger and convecting heat exchange, the second heat exchanger connected in parallel with the first heat exchanger, and the The capillary radiant air conditioner communicated with the first heat exchanger, the fresh air dehumidifier communicated with the second heat exchanger, and the hot water tank communicated with the third heat exchanger.

Further, according to the present utility model, the air source heat pump system further includes a fifth circulation loop with a hot water heating function and a heating function respectively, the air heat exchanger and 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 connected in sequence to form a fifth circulation loop. The five-cycle loop also includes the third heat exchanger whose ends are respectively communicated with the three-way valve and the air heat exchanger, and the hot water tank communicated with the third heat exchanger, and the The air heat exchangers are arranged opposite to each other and the fan for convective heat exchange, and the capillary radiant air conditioner communicated with the first heat exchanger.

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

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 respectively solenoid valves.

According to some preferred and specific aspects of the present invention, the air source heat pump system further includes a first throttling device, a second throttling device and a third throttling device, the first throttling device and the first throttling device The valves are connected in series, 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.

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 throttle device, and a second electric valve connected in parallel with the third throttle device.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

The utility model innovatively combines the conventional equipment in the prior art organically, and realizes the switching of multiple functions (including one function of heating, cooling, dehumidification, and hot water heating) on a set of air source heat pump systems or a combination of multiple functions), saving energy, low cost, and more in line with the current high standard requirements for environmental protection, environment, low cost, and integration, and the components with air conditioning functions in the present invention are not limited to those in the prior art. The defect of operation in wet conditions is that it can easily switch between hot and cold environments, which can avoid the proliferation of bacteria caused by long-term operation in wet conditions, and further ensure the health and comfort of the human body. .

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

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

Among them, 1. compressor; 2. first heat exchanger; 3. second heat exchanger; 4. capillary radiation air conditioner; 5. fresh air dehumidifier; 6. air heat exchanger; 7. fan; 8. air 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, the fourth valve; 17, the fifth valve; 18, the first throttle device; 19, the second throttle device; 20, the third throttle device; 21, the first electric valve; 22, the second electric valve; 23. Hot water pump; A, B, C, D respectively represent a flow opening of the four-way reversing valve.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not subject to the specific embodiments disclosed below. limit.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the utility model, unless otherwise expressly specified and limited, the first feature "on" or "under" the second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the 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 level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , this example provides an air source heat pump system. The air source heat pump system includes a compressor 1, a first heat exchanger 2, a second heat exchanger 3, a capillary radiant air conditioner 4, a fresh air dehumidifier 5, Air heat exchanger 6, fan 7, gas-liquid separator 8, three-way valve 9 and four-way reversing valve 10; wherein, the air source heat pump system includes a first circulation loop with cooling function and a second circulation loop with heating function circular loop;

The first heat exchanger 2 , the first passage of the four-way reversing valve 10 (the BC pipeline in FIG. 1 ), the gas-liquid separator 8 , the compressor 1 , the three-way valve 9 , and the first passage of the four-way reversing valve 10 The two passages (AD pipeline in FIG. 1 ) and the air heat exchanger 6 are in circular communication in sequence to form a first circulation loop. The first circulation loop also includes a second heat exchanger 3 connected in parallel with the first heat exchanger 2 , A capillary radiant air conditioner 4 communicated with the heat exchanger 2, and a fresh air dehumidifier 5 communicated with the second heat exchanger 3;

The air heat exchanger 6 , the third passage of the four-way reversing valve 10 (the DC pipeline in FIG. 1 ), the gas-liquid separator 8 , the compressor 1 , the three-way valve 9 , and the fourth passage of the four-way reversing valve 10 The passage (the AB pipeline in FIG. 1 ) and the first heat exchanger 2 form a second circulation loop. The second circulation loop also includes a fan 7 which is arranged opposite the air heat exchanger 6 and conducts convective heat exchange, and exchanges heat with the first heat exchanger. The capillary radiant air conditioner 4 communicated with the device 2.

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 with the function of making hot water, the air heat exchanger 6, the spool The third passage of the reversing valve 10 (the DC pipeline in FIG. 1 ), the gas-liquid separator 8 , the compressor 1 , the three-way valve 9 and the third heat exchanger 11 are connected in sequence to form a third circulation loop. The circulation loop also includes a fan 7 which is arranged opposite to the air heat exchanger 6 and conducts convective heat exchange, and a hot water tank 12 communicated with the third heat exchanger 11 .

Specifically, the air source heat pump system further includes a fourth circulation loop with a hot water heating function and a cooling function respectively, the air heat exchanger 6, the first heat exchanger 2, and the first passage of the four-way reversing valve 10 (Fig. 1 BC pipeline), gas-liquid separator 8, compressor 1 and three-way valve 9 are circulated in sequence 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 opposite to the air heat exchanger 6 and convecting heat exchange, a second heat exchanger 3 connected in parallel with the first heat exchanger 2, a capillary radiant air conditioner 4 communicating with the first heat exchanger 2, and the first heat exchanger 2. The fresh air dehumidifier 5 communicated with the second heat exchanger 3 and the hot water tank 12 communicated with the third heat exchanger 11 .

Specifically, the air source heat pump system further includes a fifth circulation loop with a hot water heating function and a heating function respectively, the air heat exchanger 6 and the third passage of the four-way reversing valve 10 (the DC pipeline in FIG. 1 ) , the fourth passage of the gas-liquid separator 8, the compressor 1, the three-way valve 9, and the four-way reversing valve 10 (the AB pipeline in Figure 1) and the first heat exchanger 2 are sequentially connected to form a fifth circulation loop. , the fifth circulation loop also includes a third heat exchanger 11 connected with the three-way valve 9 and the air heat exchanger 6 at both ends, and a hot water tank 12 connected with the third heat exchanger 11 and the air heat exchanger 6. A fan 7 for convection heat exchange arranged oppositely, and a capillary radiant air conditioner 4 communicating with the first heat exchanger 2.

In this embodiment, the air source heat pump system further 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 between the first heat exchanger 2 and the air On the pipeline connecting the 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, and the third valve 15 It is arranged on the pipeline connecting the four-way reversing valve 10 with 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 third heat exchanger. On the pipeline connecting the air heat exchanger 11 with the air heat exchanger 6 .

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.

In this embodiment, the air source heat pump system further 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, and the second throttling device 19 is connected in series with the second valve 14 , and the third throttle device 20 is connected in series with the air heat exchanger 6 .

In this embodiment, the air source heat pump system further 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 second electric valve 22 arranged in the third heat exchanger 11 The hot water pump 23 between the hot water tank 12.

It works as follows:

The first circulation loop with refrigeration function in this example can be radiated and refrigerated alone, and the refrigerant (R410a) circulation loop is as follows: close the fourth valve 16 and the fifth valve 17, and the four-way reversing valve 10 is energized. Reversing, the liquid refrigerant depressurized by the first throttling device 18 and the second throttling device 19 respectively flows into the corresponding first heat exchanger 2 and second heat exchanger 3 for evaporative heat exchange, evaporating the liquid refrigerant into The gaseous refrigerant 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 adjusts the three-way valve 9, so that the compressed gaseous refrigerant passes through the four-way exchange. The second passage (AD pipeline) of the valve 10 enters the air heat exchanger 6 and performs forced convection heat exchange with the external air under the action of the fan 7. The gaseous refrigerant is condensed into a liquid state, and the second electric valve 22 is opened to complete a cycle. ; Wherein, in the first heat exchanger 2, the refrigerant in the capillary radiant air conditioner 4 is cooled down for wall surface radiation cooling, and in the second heat exchanger 3, the refrigerant in the fresh air dehumidifier 5 is cooled down for use in Dehumidify the fresh air.

The second circulation loop with heating function in this example can radiate heating alone, and the refrigerant circulation loop is as follows: close the second valve 14, the fourth valve 16 and the fifth valve 17, close the second electric valve 22, The liquid refrigerant depressurized by the third throttling device 20 flows into the air heat exchanger 6, and under the action of the fan 7, it performs forced convection heat exchange with the external air, and the liquid refrigerant evaporates into a gaseous refrigerant, and then passes through the four-way reversing valve 10. The third passage (DC pipeline) flows into the gas-liquid separator 8, 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 After heat exchange in the first heat exchanger 2, it returns to the air heat exchanger 6 to complete a cycle; wherein in the first heat exchanger 2, the refrigerant of the capillary radiant air conditioner 4 is heated up and used for wall radiant heat supply.

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

In this example, the fourth circulation loop has the function of heating water and cooling respectively, and the refrigerant circulation loop is as follows: open the second electric valve 22, close the third valve 15, and the gaseous refrigerant flows from the three-way valve 9 into the air for heat exchange. 6 and the third heat exchanger 11 become liquid refrigerant after heat exchange, and then pass through the first throttling device 18 and the second throttling device 19 respectively after depressurization and enter the first heat exchanger 2 and the second heat exchanger 3 After heat exchange, it becomes a gaseous refrigerant, which flows into the gas-liquid separator 8 through the first passage (BC pipeline) of the four-way reversing valve 10, then enters the compressor 1 for compression, and passes into the three-way valve 9 to complete a cycle; among them, The hot water obtained after heat exchange in the third heat exchanger 11 is sent to the user under the action of the hot water pump 23 or stored in the hot water tank 12, and in the first heat exchanger 2, the capillary tube radiates the cooling of the air conditioner 4 After the refrigerant is cooled, it is used for radiant cooling on the wall surface, and the refrigerant in the fresh air dehumidifier 5 is cooled in the second heat exchanger 3 and used to dehumidify the fresh air.

In this example, the fifth circulation loop with hot water function and heating function respectively, wherein the refrigerant circulation loop is as follows: close the second valve 14, the fourth valve 16, the second electric valve 22, and pass the third throttling device 20. The depressurized liquid refrigerant 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 into a gaseous refrigerant, and then passes through the third passage (DC pipe) of the four-way reversing valve 10. channel) into the gas-liquid separator 8, then into the compressor 1 for compression, and then into the fourth channel (AB pipeline) of the four-way reversing valve 10, the third heat exchanger 11, and into the four-way reversing valve 10. The gaseous refrigerant after the third passage (DC pipeline) flows into the first heat exchanger 2 for heat exchange, and finally returns to the air heat exchanger 6 from the third heat exchanger 11 and the first heat exchanger 2 respectively to complete a cycle ; wherein in the first heat exchanger 2, the refrigerant of the capillary radiant air conditioning device 4 is heated for wall surface radiation heating, and the hot water obtained after heat exchange in the third heat exchanger 11 is under the action of the hot water pump 23 delivered to the user or stored in the hot water tank 12 .

To sum up, the utility model innovatively combines the conventional equipment in the prior art organically, and realizes the switching of various functions (including heating, cooling, dehumidification, and hot water production) on a set of air source heat pump systems. one function or a combination of multiple functions), saving energy, low cost, and more in line with the current high standard requirements for environmental protection, environment, low cost, and integration, and the components with air conditioning functions in the present invention are not limited to existing It has the defect of running under wet conditions in the technology, but it can easily switch between hot and cold environments, thereby avoiding the proliferation of bacteria caused by long-term operation in wet conditions, and further ensuring the health of the human body with comfort.

The above-described embodiments are only for illustrating the technical concept and characteristics of the present utility model, and its purpose is to enable those who are familiar with the technology to understand the content of the present utility model and implement it accordingly, and cannot limit the scope of protection of the present utility model with this. Equivalent changes or modifications made according to the spirit and spirit of the present invention should all be included within the protection scope of the present invention.

Claims (8)

1. An air source heat pump system is characterized in that the air source heat pump system comprises a compressor, a first heat exchanger, a second heat exchanger, a capillary tube 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 air source heat pump system comprises a first circulation loop with a refrigeration function and a second circulation loop with 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 communicated in a circulating manner to form a first circulating loop, and the first circulating loop further comprises the second heat exchanger connected with the first heat exchanger in parallel, the capillary tube radiation air-conditioning device communicated with the first heat exchanger and the fresh air dehumidifier communicated 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 further comprises a fan and a capillary tube radiation air conditioning device, wherein the fan is arranged opposite to the air heat exchanger and conducts heat convection, and the capillary tube radiation air conditioning device is communicated with the first heat exchanger.

2. The air-source heat pump system of claim 1, further comprising a third heat exchanger, a hot water tank; the air source heat pump system further comprises a third circulation loop with a hot water making function, the air heat exchanger, a 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 communicated in a circulating mode to form the third circulation loop, and the third circulation loop further comprises a fan and a hot water tank, wherein the fan is arranged opposite to the air heat exchanger and conducts heat convection, and the hot water tank is communicated with the third heat exchanger.

3. The air-source heat pump system according to claim 2, further comprising fourth circulation circuits having a heating water function and a cooling function, respectively, the air heat exchanger, the first passage of the four-way reversing valve, the gas-liquid separator, the compressor and the three-way valve are sequentially communicated in a circulating way to form the fourth circulating loop, the fourth circulation loop further comprises a third heat exchanger connected with the air heat exchanger in parallel, a fan arranged opposite to the air heat exchanger and used for heat convection, a second heat exchanger connected with the first heat exchanger in parallel, a capillary tube radiation air conditioning device communicated with the first heat exchanger, a fresh air dehumidifier communicated with the second heat exchanger, and a hot water tank communicated with the third heat exchanger.

4. The air source heat pump system according to claim 3, further comprising a fifth circulation loop having a water heating function and a heat heating function respectively, wherein 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 and circularly communicated to form the fifth circulation loop, the fifth circulation loop further comprises the third heat exchanger, a hot water tank, a fan and a capillary radiation air conditioning device, the third heat exchanger is communicated with the three-way valve and the air heat exchanger, the hot water tank is communicated with the third heat exchanger, the fan is arranged opposite to the air heat exchanger and is used for heat convection exchange, and the capillary radiation air conditioning device is communicated with the first heat exchanger.

5. The air source heat pump system according to claim 2, 3 or 4, further comprising 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 of the first heat exchanger communicated with the air heat exchanger, the second valve is arranged on a pipeline of the second heat exchanger connected with the first heat exchanger in parallel, the first valve and the second valve are connected with each other in parallel, the third valve is arranged on a pipeline of the four-way reversing valve communicated with the air heat exchanger, the fourth valve is arranged on a pipeline of the air heat exchanger communicated with the three-way valve, and the fifth valve is arranged on a pipeline of the third heat exchanger communicated with the air heat exchanger.

6. The air source heat pump system of claim 5, wherein the first, second, third, fourth, and fifth valves are each solenoid valves.

7. The air source heat pump system of claim 5, further comprising a first throttling device, a second throttling device, and a third throttling device, the first throttling device being in series with the first valve, the second throttling device being in series with the second valve, the third throttling device being in series with the air heat exchanger.

8. The air source heat pump system of claim 7, further comprising a first electrically operated valve in parallel with the first throttling device, a second electrically operated valve in parallel with the third throttling device.

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