CN222578534U

CN222578534U - Air source heat pump system

Info

Publication number: CN222578534U
Application number: CN202421004137.XU
Authority: CN
Inventors: 王伟华; 吴诗沿
Original assignee: Shenzhen Oribo Technology Co Ltd
Current assignee: Shenzhen Oribo Technology Co Ltd
Priority date: 2024-05-09
Filing date: 2024-05-09
Publication date: 2025-03-07
Anticipated expiration: 2034-05-09

Abstract

The utility model discloses an air source heat pump system, wherein a domestic hot water heat exchanger comprises a refrigerant outlet and a refrigerant inlet. The outdoor side heat exchanger comprises a first refrigerant interface and a second refrigerant interface. The air conditioner side heat exchanger comprises a third refrigerant interface and a fourth refrigerant interface. One path of the first throttling module is provided with a first refrigerant flow regulating device, and the other path of the first throttling module is provided with a first one-way valve. One path of the second throttling module is provided with a second refrigerant flow regulating device, and the other path of the second throttling module is provided with a second one-way valve. The refrigerant inlet is connected with the compressor outlet. The refrigerant outlet is connected with the inlet end of the bypass pipeline through a first reversing valve and is connected with the first refrigerant interface and/or the third refrigerant interface. The second refrigerant interface is connected with the fourth refrigerant interface through the first throttling module and the second throttling module. The outlet end of the bypass pipeline is connected between the first throttling module and the second throttling module. The first refrigerant interface and/or the third refrigerant interface are/is connected with the inlet of the compressor. The utility model can realize automatic switching between full heat recovery and partial heat recovery during refrigeration, and improves the flexibility under different modes.

Description

Air source heat pump system

Technical Field

The utility model relates to the technical field of heat pumps, in particular to an air source heat pump system.

Background

With the continuous progress of technology, people have higher requirements on living environment, and air source heat pumps are favored by more and more manufacturers and users because energy crisis can be solved to a certain extent. The traditional triple air source heat pump system can prepare hot water during refrigeration, but the speed of preparing hot water is slower, and the flexibility of the system for different scenes is poor.

Disclosure of utility model

The technical problem to be solved by the present utility model is to provide an air source heat pump system, which aims at the defects of the related art mentioned in the background art.

The utility model solves the technical problems by adopting the technical scheme that an air source heat pump system is constructed, comprising:

The compressor is used for compressing the refrigerant;

The domestic hot water heat exchanger comprises a refrigerant inlet and a refrigerant outlet communicated with the refrigerant inlet;

The outdoor side heat exchanger comprises a first refrigerant interface and a second refrigerant interface communicated with the first refrigerant interface;

the air conditioner side heat exchanger comprises a third refrigerant interface and a fourth refrigerant interface communicated with the third refrigerant interface;

the first reversing valve is used for switching all or at least part of heat of the refrigerant to exchange heat in the domestic hot water heat exchanger;

The first throttling module comprises two paths, one path is provided with a first refrigerant flow regulating device, and the other path is provided with a first one-way valve;

The second throttling module comprises two paths, wherein one path is provided with a second refrigerant flow regulating device, and the other path is provided with a second one-way valve, and

A bypass line;

wherein the refrigerant inlet is connected with the outlet of the compressor through a pipeline;

The refrigerant outlet is connected with the inlet end of the bypass pipeline after passing through the first reversing valve, and is connected with the first refrigerant interface and/or the third refrigerant interface through a pipeline after passing through the first reversing valve;

the second refrigerant interface is connected with the first end of the first throttling module, the second end of the first throttling module is connected with the first end of the second throttling module through a pipeline, the second end of the second throttling module is connected with the fourth refrigerant interface, the conduction direction of the first one-way valve faces the first end of the second throttling module, and the conduction direction of the second one-way valve faces the second end of the first throttling module;

The outlet end of the bypass pipeline is connected with a pipeline between the second end of the first throttling module and the first end of the second throttling module;

The first refrigerant interface and/or the third refrigerant interface are/is connected with an inlet of the compressor through a pipeline.

In one embodiment, the first reversing valve includes a first port, a second port, and a third port;

The first valve port is connected with the refrigerant outlet, the second valve port is connected with the inlet end of the bypass pipeline, and the third valve port is connected with the first refrigerant interface and/or the third refrigerant interface through pipelines.

In one embodiment, when the first valve port is communicated with the second valve port and the second valve port is communicated with the second refrigerant flow regulating device through the bypass pipeline, the refrigerant passes through the refrigerant inlet, the refrigerant outlet, the first valve port, the second valve port, the bypass pipeline, the second refrigerant flow regulating device, the fourth refrigerant interface and the third refrigerant interface after exiting the compressor to form a refrigerating refrigerant loop, and meanwhile, all heat of the refrigerant exchanges heat in the domestic water heater;

When the third valve port is communicated with the first refrigerant interface through a pipeline, the refrigerant passes through the refrigerant inlet, the refrigerant outlet, the first valve port, the third valve port, the first refrigerant interface, the second refrigerant interface, the first check valve, the second refrigerant flow regulating device, the fourth refrigerant interface and the third refrigerant interface after coming out of the compressor to form a refrigerating refrigerant loop, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger.

In one embodiment, when the first valve port is communicated with the third valve port and the third valve port is communicated with the third refrigerant interface through a pipeline, the refrigerant passes through the refrigerant inlet, the refrigerant outlet, the first valve port, the third refrigerant interface, the fourth refrigerant interface, the second one-way valve, the first refrigerant flow regulating device, the second refrigerant interface and the first refrigerant interface after exiting the compressor, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger;

When the second valve port is communicated with the first refrigerant flow regulating device through the bypass pipeline, the refrigerant passes through the refrigerant inlet, the refrigerant outlet, the first valve port, the second valve port, the bypass pipeline, the first refrigerant flow regulating device, the second refrigerant interface and the first refrigerant interface to form a pure hot water refrigerant loop, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger.

In one embodiment, the air source heat pump system further comprises:

And the outlet end of the bypass pipeline, the second end of the first throttling module and the first end of the second throttling module are connected with the liquid storage container.

In one embodiment, the reservoir comprises a feed tube, a first bi-directional tube, and a second bi-directional tube;

The outlet end of the bypass pipeline is connected with the liquid inlet pipe, the first bidirectional pipe is connected with the second end of the first throttling module, and the second bidirectional pipe is connected with the first end of the second throttling module.

In one embodiment, the liquid inlet pipe is communicated with the upper part of the liquid storage container, and the first bidirectional pipe and the second bidirectional pipe are communicated with the bottom part of the liquid storage container.

In one embodiment, the air source heat pump system further comprises:

The second reversing valve comprises a fourth valve port, a fifth valve port and a sixth valve port;

The fifth valve port is connected with the refrigerant inlet, and the sixth valve port is connected with the first refrigerant interface and/or the third refrigerant interface through a pipeline;

When the fourth valve port is communicated with the fifth valve port, an outlet of the compressor is communicated with the refrigerant inlet;

When the fourth valve port is communicated with the sixth valve port, an outlet of the compressor is communicated with the first refrigerant interface or the third refrigerant interface through a pipeline.

In one embodiment, the air source heat pump system further comprises:

The third reversing valve comprises a seventh valve port, an eighth valve port, a ninth valve port and a tenth valve port;

The seventh valve port is connected with the first reversing valve, the eighth valve port is connected with the first refrigerant interface, the ninth valve port is connected with the inlet of the compressor, and the tenth valve port is connected with the third refrigerant interface;

When the seventh valve port is communicated with the eighth valve port, the first refrigerant interface is communicated with the first reversing valve;

when the seventh valve port is communicated with the tenth valve port, the third refrigerant interface is communicated with the first reversing valve;

When the eighth valve port is communicated with the ninth valve port, the first refrigerant interface is communicated with an inlet of the compressor;

when the tenth valve port is communicated with the ninth valve port, the third refrigerant interface is communicated with an inlet of the compressor.

In one embodiment, the domestic hot water heat exchanger further comprises a first water inlet and a first water outlet in communication with the first water inlet;

The air source heat pump system further includes:

the domestic water tank is respectively connected with the first water inlet and the first water outlet.

By implementing the utility model, the following beneficial effects are achieved:

According to the utility model, the first reversing valve is arranged at the refrigerant outlet end of the domestic hot water heat exchanger, so that automatic switching between total heat recovery and partial heat recovery during refrigeration is realized, and the flexibility in different modes is improved, so that the heat recovery capacity and the hot water temperature of heat recovery can be ensured.

And, two sets of coolant flow regulation devices and check valves that connect in parallel can make the return circuit under any one mode pass through coolant flow regulation device only once, thus reduce the resistance.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an air source heat pump system of the present utility model;

FIG. 2 is a schematic diagram of the flow direction of the refrigerant of the air source heat pump system for preparing hot water in a total heat recovery mode while refrigerating;

FIG. 3 is a schematic diagram of a first refrigerant flow direction for preparing hot water in a waste heat recovery mode while cooling an air source heat pump system according to the present utility model;

FIG. 4 is a schematic diagram of a second refrigerant flow direction for preparing hot water in a waste heat recovery mode while cooling an air source heat pump system according to the present utility model;

FIG. 5 is a schematic diagram of a first refrigerant flow for preparing hot water while heating an air source heat pump system according to the present utility model;

FIG. 6 is a schematic diagram of a second refrigerant flow for preparing hot water while heating an air source heat pump system according to the present utility model;

FIG. 7 is a schematic diagram of the refrigerant flow direction of the air source heat pump system of the present utility model when the air source heat pump system is used for pure hot water preparation;

FIG. 8 is a schematic diagram of the refrigerant flow direction of the air source heat pump system of the present utility model in a cooling mode;

Fig. 9 is a schematic diagram of the flow direction of the refrigerant in the heating mode of the air source heat pump system according to the present utility model.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," "disposed," and "located" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally connected, mechanically connected, chemically connected, directly connected, indirectly connected via an intermediate medium, or communicate between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

As shown in fig. 1, an embodiment of the present utility model discloses an air source heat pump system, which comprises a compressor 11, a domestic hot water heat exchanger 12, an outdoor side heat exchanger 13, an air conditioner side heat exchanger 14, a first reversing valve 15, a first throttling module, a second throttling module and a bypass pipeline, and is specifically as follows:

The compressor 11 is for compressing a refrigerant, and the compressor 11 includes an inlet 111 and an outlet 112. The domestic hot water heat exchanger 12 is used for realizing heat exchange between the refrigerant and water in the domestic water tank 20, and the domestic hot water heat exchanger 12 comprises a refrigerant inlet 121 and a refrigerant outlet 122 communicated with the refrigerant inlet 121. The outdoor side heat exchanger 13 is used for realizing heat exchange between the refrigerant and the outside air, and the outdoor side heat exchanger 13 comprises a first refrigerant interface 131 and a second refrigerant interface 132 communicated with the first refrigerant interface 131. The air-conditioning side heat exchanger 14 is configured to exchange heat between the refrigerant and water in the terminal device 25, and the air-conditioning side heat exchanger 14 includes a third refrigerant interface 141 and a fourth refrigerant interface 142 that is communicated with the third refrigerant interface 141. The first reversing valve 15 is used for switching all or at least part of heat of the refrigerant to exchange heat in the domestic hot water heat exchanger 12. The first throttling module comprises two paths, one path is provided with a first refrigerant flow regulating device 16, and the other path is provided with a first one-way valve 17. The second throttling module comprises two paths, one path is provided with a second refrigerant flow regulating device 18, and the other path is provided with a second one-way valve 19.

Wherein the refrigerant inlet 121 is connected to the outlet 112 of the compressor 11 through a pipe.

The refrigerant outlet 122 is connected to the inlet end of the bypass line after passing through the first reversing valve 15, and the refrigerant outlet 122 is connected to the first refrigerant interface 131 and/or the third refrigerant interface 141 through a line after passing through the first reversing valve 15.

The second refrigerant interface 132 is connected to the first end of the first throttle module, the second end of the first throttle module is connected to the first end of the second throttle module through a pipeline, and the second end of the second throttle module is connected to the fourth refrigerant interface 142, where the conducting direction of the first check valve 17 is towards the first end of the second throttle module, and the conducting direction of the second check valve 19 is towards the second end of the first throttle module. Here, the direction refers to the direction of the refrigerant flow, and not to the direction of the space position.

The outlet end of the bypass line is connected to the line between the second end of the first throttling module and the first end of the second throttling module.

The first refrigerant port 131 and/or the third refrigerant port 141 are/is connected to the inlet 111 of the compressor 11 through a pipe.

For example, the domestic hot water heat exchanger 12 is a double pipe heat exchanger, the outdoor side heat exchanger 13 is a fin type heat exchanger, the air conditioner side heat exchanger 14 is a plate type heat exchanger, and the first refrigerant flow adjusting device 16 and the second refrigerant flow adjusting device 18 are electronic expansion valves or thermal expansion valves, and the double pipe heat exchanger, the fin type heat exchanger, the plate type heat exchanger, the electronic expansion valves and the thermal expansion valves are merely examples, and are not limiting of the present application.

According to the embodiment, the first reversing valve 15 is arranged at the refrigerant outlet 122 end of the domestic hot water heat exchanger 12, so that automatic switching between total heat recovery and partial heat recovery during refrigeration is realized, flexibility in different modes is improved, and therefore, the heat recovery capacity and the heat recovery hot water temperature can be ensured.

In some embodiments, the first reversing valve 15 includes a first port 151, a second port 152, and a third port 153. The first valve port 151 is connected to the refrigerant outlet 122. The second valve port 152 is connected to the inlet end of the bypass line. The third valve port 153 is connected to the first refrigerant port 131 and/or the third refrigerant port 141 through a pipe. For example, the first reversing valve 15 is a three-way valve, which is herein described by way of example only and not by way of limitation.

The first valve port 151 is communicated with the second valve port 152, and when the second valve port 152 is communicated with the second refrigerant flow regulating device 18 through the bypass pipeline, namely, in a domestic hot water cooling and total heat recovery mode, the first refrigerant flow regulating device 16 is closed, the second refrigerant flow regulating device 18 is opened, and the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the second valve port 152, the bypass pipeline, the second refrigerant flow regulating device 18, the fourth refrigerant interface 142 and the third refrigerant interface 141 after exiting the compressor 11, and forms a refrigerant loop for cooling, and meanwhile, the total heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

The first valve port 151 is connected to the third valve port 153, and when the third valve port 153 is connected to the first refrigerant interface 131 through a pipe, that is, when the domestic hot water cooling and waste heat recovery (also called partial heat recovery) is performed, the first refrigerant flow adjusting device 16 is closed, the second refrigerant flow adjusting device 18 is opened, and the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the third valve port 153, the first refrigerant interface 131, the second refrigerant interface 132, the first check valve 17, the second refrigerant flow adjusting device 18, the fourth refrigerant interface 142, and the third refrigerant interface 141 after exiting the compressor 11, thereby forming a refrigerant circuit, and at least a portion of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

The first valve port 151 is communicated with the third valve port 153, when the third valve port 153 is communicated with the third refrigerant interface 141 through a pipeline, that is, when the heating and domestic hot water heating mode is performed, the second refrigerant flow regulating device 18 is closed, the first refrigerant flow regulating device 16 is opened, and after the refrigerant comes out of the compressor 11, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the third valve port 153, the third refrigerant interface 141, the fourth refrigerant interface 142, the second check valve 19, the first refrigerant flow regulating device 16, the second refrigerant interface 132 and the first refrigerant interface 131 to form a heating refrigerant loop, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

The first valve port 151 is communicated with the second valve port 152, and when the second valve port 152 is communicated with the first refrigerant flow regulating device 16 through the bypass pipeline, i.e. in a pure hot water mode, the first refrigerant flow regulating device 16 is opened, the second refrigerant flow regulating device 18 is closed, and the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the second valve port 152, the bypass pipeline, the first refrigerant flow regulating device 16, the second refrigerant interface 132 and the first refrigerant interface 131 after exiting from the compressor 11 to form a refrigerant circuit of pure hot water, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

In some embodiments, the domestic hot water heat exchanger 12 further comprises a first water inlet 123 and a first water outlet 124 in communication with the first water inlet 123. The air source heat pump system further comprises a domestic water tank 20, the domestic water tank 20 is used for storing domestic water, the domestic water tank 20 is respectively connected with the first water inlet 123 and the first water outlet 124, and all or at least part of heat of the refrigerant output by the compressor 11 is subjected to heat exchange with water in the domestic water tank 20 in the domestic hot water heat exchanger 12 to prepare hot water. Specifically, the domestic water tank 20 includes a cold water inlet 201, a water outlet 202, a return water inlet 203, and a hot water outlet 204, the water outlet 202 is connected to the first water inlet 123, and the first water outlet 124 is connected to the return water inlet 203.

In some embodiments, the air source heat pump system further includes a hot water pump 21, where the hot water pump 21 is disposed on a water inlet pipeline (a pipeline in which the water outlet 202 is connected to the first water inlet 123) or a water outlet pipeline (a pipeline in which the first water outlet 124 is connected to the water return port 203) of the domestic hot water heat exchanger 12, and the hot water pump 21 is configured to power water circulation between the domestic hot water heat exchanger 12 and the domestic water tank 20.

Specifically, hot water is prepared while cooling in summer, and if the water is initially 30 ℃ and the target is to be heated to 60 ℃, a waste heat recovery mode can be adopted, but the water heating speed is slow. Therefore, in order to solve the problems of slow water heating speed and influence on the reversing of the third reversing valve 24 in the cooling and waste heat recovery mode, a total heat recovery mode is provided, the total heat of the refrigerant output by the compressor 11 is heat exchanged with the water in the domestic water tank 20 in the domestic hot water heat exchanger 12, so that the water heating speed can be increased, hot water can be quickly prepared, the refrigerant is changed into a liquid refrigerant after coming out of the refrigerant outlet 122, and then enters the air conditioner side heat exchanger 14 after being throttled and cooled by the second refrigerant flow regulating device 18 through the second valve port 152 and the bypass pipeline. When the temperature of the water reaches a preset value (for example, 50 ℃), the waste heat recovery mode can be switched due to the small temperature difference between the refrigerant and the water. If the water is initially at 50 ℃ and the target is to be heated to 60 ℃, then the waste heat recovery mode can be directly employed. It should be noted that the above listed temperature data are only examples and are not meant to limit the present application.

In some embodiments, the air source heat pump system further includes a liquid storage container 22, where the liquid storage container 22 is used for storing a liquid refrigerant, and the outlet end of the bypass line, the second end of the first throttling module (i.e. the outlet end of the first check valve 17 or the inlet end of the first refrigerant flow regulating device 16), and the first end of the second throttling module (i.e. the inlet end of the second refrigerant flow regulating device 18 or the outlet end of the second check valve 19) are connected to the liquid storage container 22.

In some embodiments, the liquid storage container 22 includes a liquid inlet pipe 221, a first bidirectional pipe 222, and a second bidirectional pipe 223, where the bidirectional pipes can be used for liquid inlet and liquid outlet, for example, when refrigerating, the first bidirectional pipe 222 can be used for liquid inlet, the second bidirectional pipe 223 can be used for liquid outlet, and when heating, the second bidirectional pipe 223 can be used for liquid inlet, and the first bidirectional pipe 222 can be used for liquid outlet. The outlet end of the bypass line is connected to the liquid inlet pipe 221, the first bidirectional pipe 222 is connected to the second end of the first throttling module (i.e. the outlet end of the first check valve 17 or the inlet end of the first refrigerant flow regulator 16), and the second bidirectional pipe 223 is connected to the first end of the second throttling module (i.e. the inlet end of the second refrigerant flow regulator 18 or the outlet end of the second check valve 19).

In this embodiment, three pipes (the liquid inlet pipe 221, the first bidirectional pipe 222 and the second bidirectional pipe 223) are disposed in the liquid storage container 22, and the refrigerant outlet 122 of the domestic hot water heat exchanger 12 may be directly connected to the liquid inlet pipe 221 through the bypass pipe, so that complexity of a system loop is reduced, and no additional valve switches such as a check valve and a stop valve are required.

And, the first bidirectional pipe 222 and the second bidirectional pipe 223 of the liquid storage container 22 are respectively connected with the outdoor side heat exchanger 13 and the air conditioner side heat exchanger 14, so that bidirectional flow can be realized, and thus, multiple modes of operation of the system can be realized.

In the domestic hot water producing mode of cooling and total heat recovery, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the second valve port 152, the bypass line, the liquid inlet pipe 221, the second bidirectional pipe 223, the second refrigerant flow regulator 18, the fourth refrigerant interface 142 and the third refrigerant interface 141 after exiting the compressor 11, and the total heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

In the domestic hot water mode for cooling and waste heat recovery, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the third valve port 153, the first refrigerant port 131, the second refrigerant port 132, the first check valve 17, the first bidirectional pipe 222, the second bidirectional pipe 223, the second refrigerant flow regulator 18, the fourth refrigerant port 142 and the third refrigerant port 141 after exiting the compressor 11, and at the same time, at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

In the heating and heating domestic hot water mode, the refrigerant flows out of the compressor 11 and then passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the third valve port 153, the third refrigerant port 141, the fourth refrigerant port 142, the second check valve 19, the second bidirectional pipe 223, the first bidirectional pipe 222, the first refrigerant flow regulator 16, the second refrigerant port 132 and the first refrigerant port 131 to form a heating refrigerant loop, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12;

In the pure hot water mode, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the second valve port 152, the bypass line, the liquid inlet pipe 221, the first bidirectional pipe 222, the first refrigerant flow regulator 16, the second refrigerant interface 132 and the first refrigerant interface 131 after exiting the compressor 11 to form a pure hot water refrigerant circuit, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

In some embodiments, the inlet pipe 221 opens into the upper portion of the reservoir 22, and the first bi-directional pipe 222 and the second bi-directional pipe 223 open into the bottom portion of the reservoir 22.

In some embodiments, the air source heat pump system further comprises a second reversing valve 23, the second reversing valve 23 is used for regulating and controlling the amount of the refrigerant entering the domestic hot water heat exchanger 12, and the second reversing valve 23 comprises a fourth valve port 231, a fifth valve port 232 and a sixth valve port 233. The fourth valve port 231 is connected to the outlet 112 of the compressor 11. The fifth valve port 232 is connected to the refrigerant inlet 121. The sixth valve port 233 is connected to the first refrigerant port 131 and/or the third refrigerant port 141 through a pipe. For example, the second reversing valve 23 is a three-way valve, and the three-way valve is merely exemplary and not limiting of the present application.

Wherein, when the fourth valve port 231 is communicated with the fifth valve port 232, the outlet 112 of the compressor 11 is communicated with the refrigerant inlet 121. When the fourth valve port 231 is communicated with the sixth valve port 233, the outlet 112 of the compressor 11 is communicated with the first refrigerant interface 131 or the third refrigerant interface 141 through a pipeline.

In some embodiments, the air source heat pump system further includes a third reversing valve 24, where the third reversing valve 24 is used to switch between the cooling mode and the heating mode, and the third reversing valve 24 includes a seventh valve port 241, an eighth valve port 242, a ninth valve port 243, and a tenth valve port 244. The seventh valve port 241 is connected to the first reversing valve 15 (specifically, the third valve port 153 of the first reversing valve 15), and/or the seventh valve port 241 is connected to the outlet 112 of the compressor 11 (specifically, the sixth valve port 233 of the second reversing valve 23) through a pipe. The eighth valve port 242 is connected to the first refrigerant port 131. The ninth valve port 243 is connected to the inlet 111 of the compressor 11. The tenth valve port 244 is connected to the third refrigerant port 141. For example, the third reversing valve 24 is a three-way valve, which is provided herein by way of example only and is not intended to limit the present application.

Wherein, when the seventh valve port 241 is in communication with the eighth valve port 242, the first refrigerant port 131 is in communication with the first reversing valve 15 (specifically, the third valve port 153 of the first reversing valve 15), and/or the first refrigerant port 131 is in communication with the outlet 112 of the compressor 11 (specifically, the sixth valve port 233 of the second reversing valve 23) through a pipeline.

When the seventh valve port 241 is in communication with the tenth valve port 244, the third refrigerant port 141 is in communication with the first reversing valve 15 (specifically, the third valve port 153 of the first reversing valve 15), and/or the third refrigerant port 141 is in communication with the outlet 112 of the compressor 11 (specifically, the sixth valve port 233 of the second reversing valve 23) through a pipe.

When the eighth valve port 242 is in communication with the ninth valve port 243, the first refrigerant port 131 is in communication with the inlet 111 of the compressor 11.

When the tenth valve port 244 communicates with the ninth valve port 243, the third refrigerant port 141 communicates with the inlet 111 of the compressor 11.

In some embodiments, the air source heat pump system further comprises the end device 25, the air-conditioning side heat exchanger 14 is configured to exchange heat between the refrigerant and the water in the end device 25, so that the air-conditioning side heat exchanger 14 further comprises a second water inlet 143 and a second water outlet 144 in communication with the second water inlet 143, the outlet of the end device 25 is connected to the second water inlet 143 of the air-conditioning side heat exchanger 14, and the second water outlet 144 of the air-conditioning side heat exchanger 14 is connected to the inlet of the end device 25.

The end device 25 may include a fan tray and/or a floor heating installed indoors, and further may further include a hydraulic module connected between the air-conditioning side heat exchanger 14 and the fan tray and/or the floor heating, where the fan tray, the floor heating, and the hydraulic module are merely examples and are not limiting of the present utility model.

In some embodiments, the air source heat pump system further comprises an air-conditioning side water pump 26, wherein the air-conditioning side water pump 26 is disposed on a water inlet pipe (a pipe in which the outlet of the end device 25 is connected to the second water inlet 143 of the air-conditioning side heat exchanger 14) or a water outlet pipe (a pipe in which the second water outlet 144 of the air-conditioning side heat exchanger 14 is connected to the inlet of the end device 25) of the air-conditioning side heat exchanger 14, and the air-conditioning side water pump 26 is configured to power the water circulation between the air-conditioning side heat exchanger 14 and the end device 25.

In some embodiments, the air source heat pump system further includes a gas-liquid separator 27, where the gas-liquid separator 27 is used to separate a gaseous refrigerant and a liquid refrigerant, and the gas-liquid separator 27 is disposed at an inlet end of the compressor 11.

In some embodiments, in order to facilitate releasing the pressure in the refrigerant pipeline during the maintenance of the system, the air source heat pump system further includes a pressure release module, where the pressure release module includes a third check valve 28, an inlet end of the third check valve 28 is connected to a pipeline (specifically, a first bi-directional pipe 222 or a second bi-directional pipe 223 of the liquid storage container 22) between the first refrigerant flow adjusting device 16 and the second refrigerant flow adjusting device 18, and an outlet end of the third check valve 28 is connected to a pipeline (specifically, a seventh valve port 241 of the third reversing valve 24) between the compressor 11 and the third reversing valve 24, and a conduction direction of the third check valve 28 faces a pipeline between the compressor 11 and the third reversing valve 24, where the orientation refers to a flow direction of the refrigerant, and not refers to a spatial orientation.

As shown in fig. 1, the connection relationship between the above components is that the outlet 112 of the compressor 11 is connected to the fourth valve port 231 of the second reversing valve 23, the fifth valve port 232 of the second reversing valve 23 is connected to the refrigerant inlet 121 of the domestic hot water heat exchanger 12, and the sixth valve port 233 of the second reversing valve 23 is connected to the seventh valve port 241 of the third reversing valve 24; the refrigerant outlet 122 of the domestic hot water heat exchanger 12 is connected with the first valve port 151 of the first reversing valve 15, the second valve port 152 of the first reversing valve 15 is connected with the liquid inlet pipe 221 of the liquid storage container 22, the third valve port 153 of the first reversing valve 15 is connected with the seventh valve port 241 of the third reversing valve 24, the water outlet 202 of the domestic water tank 20 is connected with the first water inlet 123 of the domestic hot water heat exchanger 12 through the hot water pump 21, the first water outlet 124 of the domestic hot water heat exchanger 12 is connected with the water return port 203 of the domestic water tank 20, the eighth valve port 242 of the third reversing valve 24 is connected with the first refrigerant interface 131 of the outdoor side heat exchanger 13, the second refrigerant interface 132 of the outdoor side heat exchanger 13 is connected with the first bidirectional pipe 222 of the liquid storage container 22 through the first one-way valve 17, the conduction direction of the first one-way valve 17 is toward the first bidirectional pipe 222, the second refrigerant interface 132 of the outdoor side heat exchanger 13 is connected with the second refrigerant interface 22 through the second bidirectional pipe 12 of the second port 131 of the second air conditioner 18 through the second port 12 and the second bidirectional flow regulator 12, the other path of the fourth refrigerant interface 142 of the air-conditioning side heat exchanger 14 is connected to the second bidirectional pipe 223 of the liquid storage container 22 through the second unidirectional valve 19, the conduction direction of the second unidirectional valve 19 is toward the second bidirectional pipe 223, the third refrigerant interface 141 of the air-conditioning side heat exchanger 14 is connected to the tenth valve port 244 of the third reversing valve 24, the ninth valve port 243 of the third reversing valve 24 is connected to the inlet 111 of the compressor 11 through the gas-liquid separator 27, the outlet of the end device 25 is connected to the second water inlet 143 of the air-conditioning side heat exchanger 14 through the air-conditioning side water pump 26, and the second water outlet 144 of the air-conditioning side heat exchanger 14 is connected to the inlet of the end device 25. It should be noted that the connection between the interfaces, the interfaces and the components or the connection between the components is merely a physical connection, and is not limited to the communication relationship and the refrigerant flow relationship.

Under different conditions, the air source heat pump system can be communicated with different valve ports, and the air source heat pump system is specifically as follows:

As shown in fig. 2, in the domestic hot water producing mode for cooling and total heat recovery, the fourth port 231 of the second reversing valve 23 communicates with the fifth port 232, the first port 151 of the first reversing valve 15 communicates with the second port 152, the tenth port 244 of the third reversing valve 24 communicates with the ninth port 243, the first refrigerant flow regulating device 16 is closed, and the second refrigerant flow regulating device 18 is opened. That is, when hot water needs to be quickly prepared in the cooling mode, the high-temperature gaseous refrigerant output by the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the fifth valve port 232 of the second reversing valve 23 and then enters the refrigerant inlet 121 of the domestic hot water heat exchanger 12, the high-temperature gaseous refrigerant exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12 to prepare hot water and then becomes a medium-temperature liquid refrigerant, the medium-temperature liquid refrigerant output by the refrigerant outlet 122 of the domestic hot water heat exchanger 12 passes through the first valve port 151 and the second valve port 152 of the first reversing valve 15 and then enters the liquid inlet 221 of the liquid storage container 22, the medium-temperature liquid refrigerant output by the second bidirectional pipe 223 of the liquid storage container 22 passes through the fourth refrigerant interface 142 of the air conditioner side heat exchanger 14 and then becomes a low-temperature liquid refrigerant, the low-temperature liquid refrigerant exchanges heat with circulating water in the terminal equipment 25 in the air conditioner side heat exchanger 14, the medium-temperature liquid refrigerant passes through the first valve port 151 and the second valve port 152 and then returns to the air conditioner side heat exchanger 14, and then passes through the third refrigerant inlet 243 of the third reversing valve port 11 and then returns to the air conditioner side heat exchanger 14. The domestic hot water heat exchanger 12 is communicated with the domestic water tank 20, so that all condensation heat which is originally used for exchanging heat with air by the outdoor side heat exchanger 13 is recycled in summer refrigeration, waste caused by heat exchange between the outdoor side heat exchanger 13 and the air is avoided, the recycled heat exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, hot water is quickly prepared, the energy utilization rate is improved, and the hot water preparing speed is improved.

As shown in fig. 3, in the domestic hot water producing mode for cooling and heat recovery, the fourth port 231 of the second reversing valve 23 is communicated with the fifth port 232, the first port 151 of the first reversing valve 15 is communicated with the third port 153, the seventh port 241 of the third reversing valve 24 is communicated with the eighth port 242, the tenth port 244 of the third reversing valve 24 is communicated with the ninth port 243, the first refrigerant flow regulating device 16 is closed, and the second refrigerant flow regulating device 18 is opened. That is, when hot water is required to be prepared in the cooling mode, the high-temperature gaseous refrigerant outputted from the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the fifth valve port 232 of the second reversing valve 23 and then enters the refrigerant inlet 121 of the domestic hot water heat exchanger 12, the high-temperature gaseous refrigerant exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, after hot water is prepared, the high-temperature gaseous refrigerant becomes a medium-temperature gaseous refrigerant, the medium-temperature gaseous refrigerant outputted from the refrigerant outlet 122 of the domestic hot water heat exchanger 12 passes through the first valve port 151 and the third valve port 153 of the first reversing valve 15 and the seventh valve port 241 and the eighth valve port 242 of the third reversing valve 24 and then enters the first refrigerant interface 131 of the outdoor side heat exchanger 13, the medium-temperature gaseous refrigerant condenses in the outdoor side heat exchanger 13 to release heat and becomes a medium-temperature liquid refrigerant, the medium-temperature liquid refrigerant output by the second refrigerant interface 132 of the outdoor side heat exchanger 13 passes through the first check valve 17 and enters the first bidirectional pipe 222 of the liquid storage container 22, the medium-temperature liquid refrigerant output by the second bidirectional pipe 223 of the liquid storage container 22 passes through the second refrigerant flow regulating device 18 to be throttled and cooled and then becomes a low-temperature liquid refrigerant with lower temperature, and then enters the fourth refrigerant interface 142 of the air-conditioning side heat exchanger 14, the low-temperature liquid refrigerant exchanges heat with the circulating water in the terminal device 25 in the air-conditioning side heat exchanger 14, the low-temperature liquid refrigerant evaporates into a low-temperature gaseous refrigerant after absorbing the heat of the circulating water, the low-temperature gaseous refrigerant output by the third refrigerant interface 141 of the air-conditioning side heat exchanger 14 passes through the tenth valve port 244 and the ninth valve port 243 of the third reversing valve 24 and returns to the inlet 111 of the compressor 11 through the air-liquid separator 27, and (5) reciprocating circulation. The domestic hot water heat exchanger 12 is communicated with the domestic water tank 20, so that at least part of condensation heat which is originally used for exchanging heat with air by the outdoor side heat exchanger 13 is recycled in summer refrigeration, waste caused by heat exchange between the outdoor side heat exchanger 13 and the air is avoided, the recycled heat exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, hot water is prepared, and the energy utilization rate is improved.

In particular, the embodiment shown in fig. 3 is different from that shown in fig. 2 in that fig. 3 is to recycle at least part of the condensation heat of the outdoor side heat exchanger 13 originally used for heat exchange with air, and fig. 2 is to recycle all of the condensation heat of the outdoor side heat exchanger 13 originally used for heat exchange with air.

As shown in fig. 4, in the cooling mode and the domestic hot water recovery mode, the fourth port 231 of the second reversing valve 23 is respectively connected to the fifth port 232 and the sixth port 233, the first port 151 of the first reversing valve 15 is connected to the third port 153, the seventh port 241 of the third reversing valve 24 is connected to the eighth port 242, the tenth port 244 of the third reversing valve 24 is connected to the ninth port 243, the first refrigerant flow regulator 16 is closed, and the second refrigerant flow regulator 18 is opened. Namely, when hot water is required to be prepared in the cooling mode, the high-temperature gaseous refrigerant output by the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the fifth valve port 232 of the second reversing valve 23 and then enters the refrigerant inlet 121 of the domestic hot water heat exchanger 12, and passes through the seventh valve port 241 and the eighth valve port 242 of the seventh valve port 233 and the eighth valve port 233 of the second reversing valve 23 and then enters the first refrigerant interface 131 of the outdoor side heat exchanger 13, the high-temperature gaseous refrigerant exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, the hot water is prepared and then becomes a medium-temperature gaseous refrigerant, the medium-temperature gaseous refrigerant output by the refrigerant outlet 122 of the domestic hot water heat exchanger 12 passes through the first valve port 151 and the third valve port 153 of the first reversing valve 15 and the seventh valve port 241 and the eighth valve port 242 of the third reversing valve 24 and then enters the first interface 131 of the outdoor side heat exchanger 13, the medium-temperature gaseous refrigerant is condensed and released heat in the outdoor side heat exchanger 13 and becomes a medium-temperature liquid refrigerant, the medium-temperature liquid refrigerant output by the second refrigerant interface 132 of the outdoor side heat exchanger 13 passes through the first one-way valve 17 and enters the first two-way pipe 222 of the liquid storage container 22, the medium-temperature liquid refrigerant output by the second two-way pipe 223 of the liquid storage container 22 is throttled and cooled by the second refrigerant flow regulating device 18 and becomes a low-temperature liquid refrigerant with lower temperature, then enters the fourth refrigerant interface 142 of the air-conditioning side heat exchanger 14, the low-temperature liquid refrigerant exchanges heat with the circulating water in the terminal equipment 25 in the air-conditioning side heat exchanger 14, the low-temperature liquid refrigerant absorbs the heat of the circulating water and evaporates to become a low-temperature liquid refrigerant, the low-temperature gaseous refrigerant outputted from the third refrigerant port 141 of the air-conditioning side heat exchanger 14 passes through the tenth port 244 and the ninth port 243 of the third reversing valve 24, and then returns to the inlet 111 of the compressor 11 through the gas-liquid separator 27, and circulates reciprocally. The domestic hot water heat exchanger 12 is communicated with the domestic water tank 20, so that at least part of condensation heat which is originally used for exchanging heat with air by the outdoor side heat exchanger 13 is recycled in summer refrigeration, waste caused by heat exchange between the outdoor side heat exchanger 13 and the air is avoided, the recycled heat exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, hot water is prepared, and the energy utilization rate is improved.

Specifically, in the embodiment shown in fig. 4 and fig. 3, the difference between the embodiment shown in fig. 4 is that, in the embodiment shown in fig. 4, a plurality of paths of refrigerant enter the outdoor side heat exchanger 13 after passing through the fourth valve port 231 and the sixth valve port 233 of the second reversing valve 23 and the seventh valve port 241 and the eighth valve port 242 of the third reversing valve 24, the amount of refrigerant entering the domestic hot water heat exchanger 12 can be better regulated, and the path of refrigerant coming out from the compressor 11 directly reaches the third reversing valve 24 can be ensured to be the gaseous refrigerant, and the path of refrigerant passing through the domestic hot water heat exchanger 12 may have the liquid refrigerant after heat exchange, and the pure gaseous refrigerant can further ensure that the third reversing valve 24 has enough pressure difference for reversing, so that the pressure loss of the refrigerant pipeline is smaller, and the second reversing valve 23 is not easily affected by impurities, so that the system stably operates.

As shown in fig. 5, in the heating and domestic hot water mode, the fourth port 231 of the second reversing valve 23 is communicated with the fifth port 232, the first port 151 of the first reversing valve 15 is communicated with the third port 153, the seventh port 241 of the third reversing valve 24 is communicated with the tenth port 244, the eighth port 242 of the third reversing valve 24 is communicated with the ninth port 243, the first refrigerant flow regulating device 16 is opened, and the second refrigerant flow regulating device 18 is closed. Namely, when hot water needs to be prepared in the heating mode, the high-temperature gaseous refrigerant output by the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the fifth valve port 232 of the second reversing valve 23 and then enters the refrigerant inlet 121 of the domestic hot water heat exchanger 12, the high-temperature gaseous refrigerant exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, after hot water is prepared, the high-temperature gaseous refrigerant becomes a medium-temperature gaseous refrigerant, the medium-temperature gaseous refrigerant output by the refrigerant outlet 122 of the domestic hot water heat exchanger 12 passes through the first valve port 151 and the third valve port 153 of the first reversing valve 15 and the seventh valve port 241 and the tenth valve port 244 of the third reversing valve 24 and then enters the third refrigerant interface 141 of the air-conditioning side heat exchanger 14, the medium-temperature gaseous refrigerant exchanges heat with circulating water in the terminal equipment 25 in the air-conditioning side heat exchanger 14 and becomes a medium-temperature liquid refrigerant, the medium-temperature liquid refrigerant output by the fourth refrigerant interface 142 of the air-conditioning side heat exchanger 14 passes through the second one-way valve 19 and then enters the second bidirectional tube 223 of the liquid storage container 22, the medium-temperature liquid refrigerant output by the first bidirectional tube 222 of the liquid storage container 22 passes through the first refrigerant flow regulator 16 to be throttled and cooled and then becomes a low-temperature liquid refrigerant with lower temperature, and then enters the second refrigerant interface 132 of the outdoor side heat exchanger 13, the low-temperature liquid refrigerant evaporates and absorbs heat in the outdoor side heat exchanger 13 and becomes a low-temperature gaseous refrigerant, and the low-temperature gaseous refrigerant output by the first refrigerant interface 131 of the outdoor side heat exchanger 13 passes through the eighth valve port 242 and the ninth valve port 243 of the third reversing valve 24 and then returns to the inlet 111 of the compressor 11 through the gas-liquid separator 27, and is reciprocally circulated. The domestic hot water heat exchanger 12 is communicated with the domestic water tank 20, so that hot water can be prepared while heating in winter, and the energy utilization rate is improved.

As shown in fig. 6, in the heating and domestic hot water mode, the fourth port 231 of the second reversing valve 23 is respectively connected to the fifth port 232 and the sixth port 233, the first port 151 of the first reversing valve 15 is connected to the third port 153, the seventh port 241 of the third reversing valve 24 is connected to the tenth port 244, the eighth port 242 of the third reversing valve 24 is connected to the ninth port 243, the first refrigerant flow regulator 16 is opened, and the second refrigerant flow regulator 18 is closed. Namely, when hot water needs to be prepared in the heating mode, the high-temperature gaseous refrigerant output by the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the fifth valve port 232 of the second reversing valve 23 and enters the refrigerant inlet 121 of the domestic hot water heat exchanger 12, and passes through the fourth valve port 231 and the sixth valve port 233 of the second reversing valve 23 and the seventh valve port 241 and the tenth valve port 244 of the third reversing valve 24 and enters the third refrigerant interface 141 of the air-conditioning side heat exchanger 14, the high-temperature gaseous refrigerant exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, and becomes a medium-temperature gaseous refrigerant after hot water preparation, the medium-temperature gaseous refrigerant output by the refrigerant outlet 122 of the domestic hot water heat exchanger 12 passes through the first valve port 151 and the third valve port 153 of the first reversing valve 15 and the seventh valve port 241 and the tenth valve port 244 of the third reversing valve 24 and enters the third refrigerant interface 141 of the air-conditioning side heat exchanger 14, the medium-temperature gaseous refrigerant is changed into medium-temperature liquid refrigerant after heat exchange with circulating water in the terminal device 25 in the air-conditioning side heat exchanger 14, the medium-temperature liquid refrigerant output by the fourth refrigerant interface 142 of the air-conditioning side heat exchanger 14 passes through the second one-way valve 19 and enters the second bidirectional tube 223 of the liquid storage container 22, the medium-temperature liquid refrigerant output by the first bidirectional tube 222 of the liquid storage container 22 is changed into low-temperature liquid refrigerant with lower temperature after throttling and cooling by the first refrigerant flow regulating device 16, then enters the second refrigerant interface 132 of the outdoor side heat exchanger 13, the low-temperature liquid refrigerant is changed into low-temperature gaseous refrigerant after heat absorption by evaporation in the outdoor side heat exchanger 13, the low-temperature gaseous refrigerant outputted from the first refrigerant port 131 of the outdoor heat exchanger 13 passes through the eighth valve port 242 and the ninth valve port 243 of the third reversing valve 24, and then returns to the inlet 111 of the compressor 11 through the gas-liquid separator 27, and circulates reciprocally. The domestic hot water heat exchanger 12 is communicated with the domestic water tank 20, so that hot water can be prepared while heating in winter, and the energy utilization rate is improved.

Specifically, in the embodiment shown in fig. 6 and fig. 5, the difference is that, in the embodiment shown in fig. 6, a plurality of paths of refrigerant enter the air-conditioning side heat exchanger 14 after passing through the fourth valve port 231 and the sixth valve port 233 of the second reversing valve 23 and the seventh valve port 241 and the tenth valve port 244 of the third reversing valve 24, the amount of refrigerant entering the domestic hot water heat exchanger 12 can be better regulated, the path of refrigerant coming out from the compressor 11 directly reaches the third reversing valve 24 can be ensured to be the gaseous refrigerant, the refrigerant in the liquid state may exist after heat exchange of the refrigerant passing through the domestic hot water heat exchanger 12, the pure gaseous refrigerant can be ensured to have enough pressure difference for reversing the third reversing valve 24, so that the pressure loss of the refrigerant pipeline is smaller, the second reversing valve 23 is not easily affected by impurities, and the system is enabled to stably operate.

As shown in fig. 7, in the pure hot water mode, the fourth port 231 of the second reversing valve 23 is communicated with the fifth port 232, the first port 151 of the first reversing valve 15 is communicated with the second port 152, the eighth port 242 of the third reversing valve 24 is communicated with the ninth port 243, the first refrigerant flow regulating device 16 is opened, and the second refrigerant flow regulating device 18 is closed. That is, when only hot water needs to be prepared, the high-temperature gaseous refrigerant output by the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the fifth valve port 232 of the second reversing valve 23 and then enters the refrigerant inlet 121 of the domestic hot water heat exchanger 12, the high-temperature gaseous refrigerant exchanges heat with water in the domestic water tank 20 in the domestic hot water heat exchanger 12 to prepare hot water, the hot water is prepared and then becomes a medium-temperature liquid refrigerant, the medium-temperature liquid refrigerant output by the refrigerant outlet 122 of the domestic hot water heat exchanger 12 passes through the first valve port 151 and the second valve port 152 of the first reversing valve 15 and then enters the liquid inlet 221 of the liquid storage container 22, the medium-temperature liquid refrigerant output by the first two-way pipe 222 of the liquid storage container 22 passes through the first refrigerant flow regulating device 16 and then becomes a low-temperature liquid refrigerant with lower temperature, then enters the second refrigerant interface 132 of the outdoor side heat exchanger 13, the low-temperature liquid refrigerant is evaporated and then becomes a low-temperature liquid refrigerant in the outdoor side heat exchanger 13, the medium-temperature liquid refrigerant passes through the first valve port 151 and the second valve port 152 of the third valve port 222 of the outdoor side heat exchanger 13 and then returns to the eighth refrigerant inlet 111 through the eighth valve port 27. The domestic hot water heat exchanger 12 is communicated with the domestic water tank 20, so that all heat from the compressor 11 can be independently used for heat exchange with water in the domestic water tank 20 in the domestic hot water heat exchanger 12, energy is utilized pertinently, a loop of the refrigerant is shortened when water is heated, the heat exchange efficiency is higher without passing through the air conditioner side heat exchanger 14.

As shown in fig. 8, in the cooling mode, the fourth port 231 of the second reversing valve 23 communicates with the sixth port 233, the seventh port 241 of the third reversing valve 24 communicates with the eighth port 242, the tenth port 244 of the third reversing valve 24 communicates with the ninth port 243, the first refrigerant flow regulating device 16 is closed, and the second refrigerant flow regulating device 18 is opened. That is, when the refrigerant is independently cooled in summer, the high-temperature gaseous refrigerant outputted from the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the sixth valve port 233 of the second reversing valve 23 and the seventh valve port 241 and the eighth valve port 242 of the third reversing valve 24, and then enters the first refrigerant interface 131 of the outdoor side heat exchanger 13, the high-temperature gaseous refrigerant is condensed and released in the outdoor side heat exchanger 13 to become a medium-temperature liquid refrigerant, the medium-temperature liquid refrigerant outputted from the second refrigerant interface 132 of the outdoor side heat exchanger 13 passes through the first one-way valve 17 and then enters the first two-way pipe 222 of the liquid storage container 22, the medium-temperature liquid refrigerant outputted from the second two-way pipe 223 of the liquid storage container 22 passes through the fourth refrigerant interface 142 of the air conditioner side heat exchanger 14 after being throttled and cooled by the second refrigerant flow regulator 18, and then enters the low-temperature liquid refrigerant, the low-temperature liquid refrigerant exchanges heat with circulating water in the terminal equipment 25 in the air conditioner side heat exchanger 14, and the low-temperature liquid refrigerant is absorbed by the low-temperature liquid refrigerant and then passes through the third refrigerant interface 142 of the third reversing valve port 14, and then passes through the third refrigerant interface 21 of the refrigerant inlet 11 and the refrigerant outlet of the third reversing valve 11 after the refrigerant has been cooled.

As shown in fig. 9, in the heating mode, the fourth port 231 of the second reversing valve 23 is communicated with the sixth port 233, the seventh port 241 of the third reversing valve 24 is communicated with the tenth port 244, the eighth port 242 of the third reversing valve 24 is communicated with the ninth port 243, the first refrigerant flow regulating device 16 is opened, and the second refrigerant flow regulating device 18 is closed. That is, when heating alone in winter, the high-temperature gaseous refrigerant outputted from the outlet 112 of the compressor 11 passes through the fourth valve port 231 and the sixth valve port 233 of the second reversing valve 23 and the seventh valve port 241 and the tenth valve port 244 of the third reversing valve 24, and then enters the third refrigerant interface 141 of the air-conditioning side heat exchanger 14, the high-temperature gaseous refrigerant exchanges heat with the circulating water in the end device 25 in the air-conditioning side heat exchanger 14 and becomes a medium-temperature liquid refrigerant, the medium-temperature liquid refrigerant outputted from the fourth refrigerant interface 142 of the air-conditioning side heat exchanger 14 passes through the second check valve 19 and then enters the second bidirectional pipe 223 of the liquid storage container 22, the medium-temperature liquid refrigerant outputted from the first bidirectional pipe 222 of the liquid storage container 22 passes through the first refrigerant flow adjusting device 16 and then becomes a low-temperature liquid refrigerant, and then enters the second refrigerant interface 132 of the outdoor side heat exchanger 13, the low-temperature liquid refrigerant is evaporated in the outdoor side heat exchanger 13 and becomes a low-temperature liquid refrigerant, and the medium-temperature liquid refrigerant outputted from the fourth refrigerant interface 142 of the air-conditioning side heat exchanger 14 passes through the second bidirectional pipe 222 and then passes through the eighth refrigerant interface 11 of the third reversing valve 11 and then returns to the eighth refrigerant interface 243 of the outdoor heat exchanger 13.

The above-mentioned high, medium and low temperatures are only relative expressions, and the gaseous refrigerant may be a gas-liquid two-phase state or a gaseous state, and is not limited thereto.

In other embodiments, the first check valve 17 and the second check valve 19 may be replaced with a first switch valve and a second switch valve. One path of the second refrigerant interface 132 of the outdoor side heat exchanger 13 is connected with the first bidirectional pipe 222 of the liquid storage container 22 through the first switch valve, the other path of the second refrigerant interface 132 of the outdoor side heat exchanger 13 is connected with the first bidirectional pipe 222 of the liquid storage container 22 through the first refrigerant flow regulating device 16, one path of the fourth refrigerant interface 142 of the air conditioner side heat exchanger 14 is connected with the second bidirectional pipe 223 of the liquid storage container 22 through the second refrigerant flow regulating device 18, and the other path of the fourth refrigerant interface 142 of the air conditioner side heat exchanger 14 is connected with the second bidirectional pipe 223 of the liquid storage container 22 through the second switch valve. For example, the first switching valve and the second switching valve are solenoid valves, and the solenoid valves herein are merely examples and are not limiting of the present application.

Wherein, the switch states of the first switch valve and the second switch valve under different modes are as follows:

In the domestic hot water producing mode of cooling and total heat recovery, the first switch valve and the second switch valve are closed, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the second valve port 152, the bypass line, the second refrigerant flow regulator 18, the fourth refrigerant interface 142 and the third refrigerant interface 141 after exiting the compressor 11 to form a cooled refrigerant circuit, and at the same time, the total heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

In the domestic hot water mode for cooling and waste heat recovery, the first switch valve is opened, the second switch valve is closed, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the third valve port 153, the first refrigerant interface 131, the second refrigerant interface 132, the first switch valve, the second refrigerant flow regulator 18, the fourth refrigerant interface 142 and the third refrigerant interface 141 after exiting the compressor 11, and at the same time, at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

In the heating and domestic hot water mode, the first switch valve is closed, the second switch valve is opened, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the third valve port 153, the third refrigerant interface 141, the fourth refrigerant interface 142, the second switch valve, the first refrigerant flow regulator 16, the second refrigerant interface 132 and the first refrigerant interface 131 after exiting the compressor 11, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

In the pure hot water mode, the first switch valve and the second switch valve are closed, the refrigerant passes through the refrigerant inlet 121, the refrigerant outlet 122, the first valve port 151, the second valve port 152, the bypass line, the first refrigerant flow regulator 16, the second refrigerant interface 132 and the first refrigerant interface 131 after exiting the compressor 11 to form a refrigerant circuit of pure hot water, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger 12.

According to the utility model, the first reversing valve 15 is arranged at the refrigerant outlet 122 end of the domestic hot water heat exchanger 12, so that automatic switching between total heat recovery and partial heat recovery during refrigeration is realized, and thus, the heat recovery capacity and the hot water temperature of heat recovery can be ensured.

It should be understood that the foregoing examples merely illustrate some embodiments of the present utility model, and the description thereof is more specific and detailed and should not be construed as limiting the scope of the utility model, it should be noted that it is possible for those skilled in the art to freely combine the above-mentioned embodiments or technical features without departing from the spirit of the utility model, and several modifications and improvements can be made thereto, which fall within the scope of the utility model, i.e., the embodiments described in the "embodiments" can be freely combined with any one of the above and below embodiments, and therefore, equivalent changes and modifications as follows from the scope of the claims are intended to be covered by the present utility model.

Claims

1. An air source heat pump system, comprising:

The compressor is used for compressing the refrigerant;

A bypass line;

2. The air source heat pump system of claim 1, wherein the first reversing valve comprises a first valve port, a second valve port, and a third valve port;

3. An air source heat pump system according to claim 2, wherein,

When the first valve port is communicated with the second valve port and the second valve port is communicated with the second refrigerant flow regulating device through the bypass pipeline, the refrigerant passes through the refrigerant inlet, the refrigerant outlet, the first valve port, the second valve port, the bypass pipeline, the second refrigerant flow regulating device, the fourth refrigerant interface and the third refrigerant interface after coming out of the compressor to form a refrigeration refrigerant loop, and meanwhile, all heat of the refrigerant exchanges heat in the domestic water heat exchanger;

4. An air source heat pump system according to claim 2, wherein,

When the first valve port is communicated with the third valve port and the third valve port is communicated with the third refrigerant interface through a pipeline, the refrigerant passes through the refrigerant inlet, the refrigerant outlet, the first valve port, the third refrigerant interface, the fourth refrigerant interface, the second one-way valve, the first refrigerant flow regulating device, the second refrigerant interface and the first refrigerant interface after coming out of the compressor, and at least part of heat of the refrigerant exchanges heat in the domestic hot water heat exchanger;

5. An air source heat pump system according to claim 1, further comprising:

6. The air source heat pump system of claim 5 wherein the reservoir comprises a feed tube, a first bi-directional tube, and a second bi-directional tube;

7. An air source heat pump system according to claim 6, wherein the inlet pipe opens into an upper portion of the reservoir, and the first and second bi-directional pipes open into a bottom portion of the reservoir.

8. An air source heat pump system according to claim 1, further comprising:

9. An air source heat pump system according to claim 1, further comprising:

10. The air source heat pump system of claim 1, wherein the domestic hot water heat exchanger further comprises a first water inlet and a first water outlet in communication with the first water inlet;

The air source heat pump system further includes: