Heat pump water system

Abstract

The heat pump water system comprises indoor heat exchange equipment, a heat pump device, auxiliary heat exchange equipment and a valve assembly, and the heat pump device communicates with a water inlet of the indoor heat exchange equipment through a first water supply pipeline and communicates with a water outlet of the indoor heat exchange equipment through a first water return pipeline; the auxiliary heat exchange equipment is communicated to the first water supply pipeline through a second water return pipeline and a second water supply pipeline; the valve assembly is arranged on the second water return pipeline and / or the second water supply pipeline and used for adjusting the flow of water flowing from the second water return pipeline to the second water supply pipeline through the auxiliary heat exchange equipment. According to the heat pump water system, the water flow flowing to the auxiliary heat exchange equipment can be adjusted by controlling the valve assembly according to the series complementary structure of the heat pump device and the auxiliary heat exchange equipment, the problem that the effect of an independent heat pump device is poor is solved, and therefore the heating effect of the heat pump water system is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a heat pump water system. Background Technology

[0002] Currently, existing air source heat pumps heat indoor spaces by absorbing heat from outdoor air, compressing, transferring, and releasing that heat. However, under extreme temperature conditions, existing standalone air source heat pumps struggle to maintain a constant indoor temperature, resulting in poor heating performance. Utility Model Content

[0003] This application aims to at least address one of the technical problems existing in the prior art. To this end, this application proposes a heat pump water system designed to improve the performance of a standalone heat pump unit and enhance the heating efficiency of the heat pump water system.

[0004] In a first aspect, embodiments of this application provide a heat pump water system, comprising: an indoor heat exchange device; a heat pump unit connected to the inlet of the indoor heat exchange device via a first water supply pipeline and connected to the outlet of the indoor heat exchange device via a first return water pipeline; an auxiliary heat exchange device connected to the first water supply pipeline via a second return water pipeline and a second water supply pipeline; and a valve assembly disposed on the second return water pipeline and / or the second water supply pipeline, the valve assembly being used to regulate the water flow rate from the second return water pipeline through the auxiliary heat exchange device to the second water supply pipeline.

[0005] According to some embodiments of this application, the second return water pipeline and the first water supply pipeline intersect at a first common end, the second water supply pipeline and the first water supply pipeline intersect at a second common end, the valve assembly is also disposed on the first water supply pipeline, and the valve assembly is also used to regulate the water flow from the first common end to the second common end.

[0006] According to some embodiments of this application, the valve assembly includes a three-way valve, which is provided with an inflow channel, a first outflow channel and a second outflow channel. The inflow channel is connected to the heat pump device, the first outflow channel is connected to the auxiliary heat exchange device through the second return water pipeline, and the second outflow channel is connected to the indoor heat exchange device.

[0007] According to some embodiments of this application, the valve assembly includes a first two-way valve and a second two-way valve. The first two-way valve is disposed in the second return water pipeline or the second supply water pipeline, and the second two-way valve is disposed in the first supply water pipeline between the first common end and the second common end.

[0008] According to some embodiments of this application, the indoor heat exchange equipment includes at least one of the following: fan coil unit, radiant panel, and underfloor heating.

[0009] According to some embodiments of this application, the heat pump water system further includes a manifold, through which both the first water supply pipeline and the first return water pipeline are connected to the indoor heat exchange equipment.

[0010] According to some embodiments of this application, the heat pump device is provided with a water-fluorine heat exchanger, a water pump and a heat pump pipeline. The water-fluorine heat exchanger and the water pump are both located in the heat pump pipeline. One end of the heat pump pipeline is connected to the first water supply pipeline and the other end is connected to the first return water pipeline.

[0011] According to some embodiments of this application, one or more heat pump devices are provided, and when there are multiple heat pump devices, the multiple heat pump devices are connected to each other through the first water supply pipeline and the first water return pipeline.

[0012] According to some embodiments of this application, the heat pump water system further includes a buffer water tank, which is disposed in the first return water pipeline.

[0013] According to some embodiments of this application, the heat pump water system further includes a water supply valve and a water inlet pipe, the water inlet pipe being connected to the buffer water tank, and the water supply valve being disposed on the water inlet pipe.

[0014] According to some embodiments of this application, the heat pump water system further includes an outlet pipe, and the inlet pipe is connected to the outlet pipe through the auxiliary heat exchange equipment.

[0015] According to the technical solution of the embodiments of this application, at least the following beneficial effects are achieved: The embodiments of this application include an indoor heat exchange device, a heat pump device, an auxiliary heat exchange device, and a valve assembly. The heat pump device is connected to the inlet of the indoor heat exchange device via a first water supply pipeline and to the outlet of the indoor heat exchange device via a first return water pipeline. The auxiliary heat exchange device is connected to the first water supply pipeline via a second return water pipeline and a second water supply pipeline. The valve assembly is disposed on the first water supply pipeline and connected to the auxiliary heat exchange device, and is used to regulate the water flow from the first water supply pipeline to the auxiliary heat exchange device. The embodiments of this application, based on the complementary series connection of the heat pump device and the auxiliary heat exchange device, can regulate the water flow to the auxiliary heat exchange device by controlling the valve assembly, thus solving the problem of poor performance of a standalone heat pump device and improving the heating effect of the heat pump water system.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0018] Figure 1 This is a schematic diagram of the structure of a heat pump water system provided in one embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a heat pump water system provided in another embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of a heat pump water system provided in another embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of a heat pump device in a heat pump water system provided in one embodiment of this application. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0026] In some cases, existing air source heat pumps heat the room by absorbing heat from the outdoor air, compressing, transferring, and releasing that heat. However, under extreme temperature conditions, existing standalone air source heat pumps struggle to maintain a constant indoor temperature, resulting in poor heating performance.

[0027] Based on the above, this application proposes a heat pump water system, which aims to improve the poor performance of individual heat pump devices and enhance the heating effect of the heat pump water system.

[0028] The various embodiments of the heat pump water system of this application will be further described below with reference to the accompanying drawings.

[0029] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a heat pump water system provided in one embodiment of this application.

[0030] In one embodiment, the heat pump water system of this application includes, but is not limited to, an indoor heat exchange device 100, a heat pump unit 200, an auxiliary heat exchange device 300, and a valve assembly 400. The heat pump unit 200 is connected to the inlet of the indoor heat exchange device 100 through a first water supply pipe and to the outlet of the indoor heat exchange device 100 through a first return water pipe. The auxiliary heat exchange device 300 is connected to the first water supply pipe through a second return water pipe and a second water supply pipe. The valve assembly 400 is disposed in the second return water pipe and / or the second water supply pipe, wherein the valve assembly 400 is used to regulate the water flow from the second return water pipe through the auxiliary heat exchange device 300 to the second water supply pipe.

[0031] It should be noted that, since the embodiments of this application can adjust the water flow from the second return water pipe to the second supply water pipe through the auxiliary heat exchange device 300 by controlling the valve assembly 400 based on the complementary structure of the heat pump device 200 and the auxiliary heat exchange device 300 in series, the problem of poor performance of the heat pump device 200 alone can be solved, thereby improving the heating effect of the heat pump water system.

[0032] It should be noted that when the water flow from the first water supply pipe to the auxiliary heat exchanger 300 through the second return pipe increases, the auxiliary heat exchanger 300 starts to produce hot water, which can solve the problem of poor performance of the standalone heat pump device 200 and thus improve the heating effect of the heat pump water system.

[0033] Specifically, the common end where the second return water pipe intersects with the first water supply pipe is called the first common end, and the common end where the second water supply pipe intersects with the first water supply pipe is called the second common end. The valve assembly 400 is also installed in the first water supply pipe. Through the valve assembly 400, the water flow from the first common end to the second common end can also be adjusted.

[0034] It should be noted that, since the embodiments of this application can adjust the water flow from the first common end to the second common end by controlling the valve assembly 400 based on the complementary structure of the heat pump device 200 and the auxiliary heat exchange device 300 connected in series, the problem of poor performance of the heat pump device alone can be solved, thereby improving the heating effect of the heat pump water system.

[0035] It should be noted that when the water flow from the first common end to the second common end decreases, the water flow from the second return water pipe to the second supply water pipe through the auxiliary heat exchanger 300 increases. Conversely, when the water flow from the first common end to the second common end increases, the water flow from the second return water pipe to the second supply water pipe through the auxiliary heat exchanger 300 decreases. Therefore, by controlling the valve assembly 400, the water flow from the first common end to the second common end can be adjusted, thereby adjusting the water flow from the second return water pipe to the second supply water pipe through the auxiliary heat exchanger 300. This allows control of the auxiliary heat exchanger 300 to produce hot water, solving the problem of poor performance of the standalone heat pump unit 200 and improving the heating effect of the heat pump water system.

[0036] Specifically, the valve assembly 400 includes a three-way valve 410, which has an inflow channel, a first outflow channel, and a second outflow channel. The three-way valve 410 is connected to the heat pump device 200 through the inflow channel, the first outflow channel is connected to the auxiliary heat exchange device 300 through the second return water pipe, and the second outflow channel is connected to the indoor heat exchange device 100.

[0037] It should be noted that, since the embodiments of this application can adjust the water flow from the inflow channel to the first outflow channel and the second outflow channel by controlling the three-way valve 410 based on the complementary structure of the heat pump device 200 and the auxiliary heat exchange device 300 in series, the problem of poor performance of the heat pump device alone can be solved, thereby improving the heating effect of the heat pump water system.

[0038] It should be noted that by controlling the three-way valve 410, the water flow from the inflow channel to the first outflow channel can be increased, while the water flow from the inflow channel to the second outflow channel can be decreased. This controls the auxiliary heat exchange equipment 300 to produce hot water, thereby solving the problem of poor performance of the standalone heat pump device 200 and improving the heating effect of the heat pump water system.

[0039] It should be noted that the three-way valve 410 can be either an on-off valve or a proportional valve. When the three-way valve 410 is an on-off valve, it can be controlled to connect the inflow channel and the first outflow channel while shutting off the inflow channel and the second outflow channel; alternatively, it can be controlled to shut off the inflow channel and the first outflow channel while connecting the inflow channel and the second outflow channel. When the three-way valve 410 is a proportional valve, it can be controlled to increase the valve opening between the inflow channel and the first outflow channel and decrease the valve opening between the inflow channel and the second outflow channel; alternatively, it can be controlled to decrease the valve opening between the inflow channel and the first outflow channel and increase the valve opening between the inflow channel and the second outflow channel. Therefore, by controlling the on-off valve or the proportional valve, the water flow from the inflow channel to the first and second outflow channels can be regulated, thereby solving the problem of poor performance of a standalone heat pump unit and improving the heating effect of the heat pump water system.

[0040] Understandably, when the three-way valve 410 is a shut-off valve, the inflow channel and the first outflow channel can be connected by controlling the shut-off valve, while the inflow channel and the second outflow channel are shut off. This allows the water in the heat pump water system to flow from the inflow channel to the first outflow channel, thereby controlling the auxiliary heat exchange equipment 300 to produce hot water. This solves the problem of poor performance of the standalone heat pump device 200 and improves the heating effect of the heat pump water system.

[0041] Understandably, when the three-way valve 410 is a proportional valve, the valve opening between the inflow channel and the first outflow channel can be increased and the valve opening between the inflow channel and the second outflow channel can be decreased by controlling the proportional valve. This increases the water flow from the inflow channel to the first outflow channel, thereby controlling the auxiliary heat exchange equipment 300 to produce hot water. This solves the problem of poor performance of the standalone heat pump device 200 and improves the heating effect of the heat pump water system.

[0042] like Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of a heat pump water system provided in another embodiment of this application.

[0043] In one embodiment, the valve assembly 400 includes a first two-way valve 420 and a second two-way valve 430. The first two-way valve 420 is disposed in the second return water pipeline, and the second two-way valve 430 is disposed in the first supply water pipeline, located between the first common end and the second common end.

[0044] It should be noted that, since the embodiments of this application can adjust the water flow from the first water supply pipeline to the auxiliary heat exchanger 300 and from the first common end to the second common end by controlling the first two-way valve 420 and the second two-way valve 430, based on the complementary structure of the heat pump device 200 and the auxiliary heat exchanger 300 connected in series, the problem of poor performance of the heat pump device 200 alone can be solved, thereby improving the heating effect of the heat pump water system.

[0045] It should be noted that by controlling the first two-way valve 420 and the second two-way valve 430, the opening degree of the first two-way valve 420 can be increased and the opening degree of the second two-way valve 430 can be decreased. This increases the water flow from the first water supply pipeline to the auxiliary heat exchange equipment and decreases the water flow from the first common end to the second common end. Consequently, the auxiliary heat exchange equipment 300 produces hot water, thus solving the problem of poor performance of the standalone heat pump device 200 and improving the heating effect of the heat pump water system.

[0046] like Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of a heat pump water system provided in another embodiment of this application.

[0047] In one embodiment, the valve assembly 400 includes a first two-way valve 420 and a second two-way valve 430. The first two-way valve 420 is disposed in the second water supply pipeline, and the second two-way valve 430 is disposed in the first water supply pipeline, located between the first common end and the second common end.

[0048] It should be noted that, since the embodiments of this application can adjust the water flow from the first water supply pipeline to the auxiliary heat exchanger 300 and from the first common end to the second common end by controlling the first two-way valve 420 and the second two-way valve 430, based on the complementary structure of the heat pump device 200 and the auxiliary heat exchanger 300 connected in series, the problem of poor performance of the heat pump device alone can be solved, thereby improving the heating effect of the heat pump water system.

[0049] It should be noted that by controlling the first two-way valve 420 and the second two-way valve 430, the opening degree of the first two-way valve 420 can be increased and the opening degree of the second two-way valve 430 can be decreased. This increases the water flow from the second return water pipe through the auxiliary heat exchange device 300 to the second supply water pipe and decreases the water flow from the first common end to the second common end. Consequently, the auxiliary heat exchange device 300 produces hot water, thus solving the problem of poor performance of the standalone heat pump device 200 and improving the heating effect of the heat pump water system.

[0050] like Figure 1 , Figure 2 and Figure 3As shown, the indoor heat exchange equipment 100 includes a fan coil unit 110, a radiant panel 120, and a floor heating system 130.

[0051] Understandably, by using a complementary structure of the heat pump unit and the auxiliary heat exchange equipment in series, and by adjusting the water flow to the auxiliary heat exchange equipment through the control valve assembly 400, the heating comfort of the fan coil unit 110, radiant panel 120, and underfloor heating 130 can be improved. This can solve the problem of poor performance of the heat pump unit 200 alone, thereby improving the heating effect of the heat pump water system.

[0052] Specifically, the heat pump water system also includes a manifold 700, wherein the first water supply line and the first return line are both connected to the indoor heat exchange equipment 100 through the manifold 700.

[0053] It is understood that the manifold 700 is used for hydraulic distribution in the heat pump water system. Depending on the actual situation, there may be multiple manifolds 700, and this application embodiment does not make specific limitations.

[0054] Specifically, such as Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of a heat pump device in a heat pump water system provided in one embodiment of this application.

[0055] In one embodiment, the heat pump device 200 of the heat pump water system includes, but is not limited to, a water-fluoride heat exchanger 210, a water supply pump 220, and a heat pump pipeline. The water-fluoride heat exchanger 210 and the water supply pump 220 are both installed in the heat pump pipeline. One end of the heat pump pipeline is the aforementioned water supply port, and the other end is the aforementioned water return port.

[0056] Specifically, in one embodiment, the heat pump device 200 further includes a first heat exchange coil and a compressor. In addition, the water-fluorine heat exchanger 210 includes, but is not limited to, a second heat exchange coil and a third heat exchange coil. The first heat exchange coil, the compressor, and the second heat exchange coil together form a circulation loop using fluorine as the refrigerant. The third heat exchange coil is connected to the heat pump pipeline and together with the water supply pipeline, indoor equipment, and return water pipeline, forms another circulation loop using water as the refrigerant. The second heat exchange coil and the third heat exchange coil are not connected to each other, but heat exchange can be performed between the second heat exchange coil and the third heat exchange coil.

[0057] Specifically, the number of heat pump units 200 can be set to one or more.

[0058] It is understandable that when the number of heat pump devices 200 is set to multiple, the multiple heat pump devices 200 are connected by the first water supply pipeline and the first water return pipeline.

[0059] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, the heat pump water system also includes a buffer water tank 500, a water supply valve 600, and an inlet pipe. The buffer water tank 500 is located in the first return water pipeline and is connected to the inlet pipe. The water supply valve 600 is located on the inlet pipe.

[0060] Understandably, the buffer tank 500 is a device used to store water, mainly to balance the pressure and flow changes of the water in the system. When the pressure of the heat pump water system increases, water will enter the buffer tank 500, and when the pressure of the heat pump water system decreases, the water stored in the buffer tank 500 will re-enter the system, thereby maintaining the balance of the heat pump water system. Furthermore, by adjusting the water supply valve 600, the water in the buffer tank 500 can enter the auxiliary heat exchange device 300 through the inlet pipe, thereby enabling the auxiliary heat exchange device 300 to produce domestic hot water.

[0061] Specifically, the heat pump water system also includes an outlet pipe, wherein the inlet pipe is connected to the outlet pipe through an auxiliary heat exchange device 300.

[0062] It is understood that the aforementioned auxiliary heat exchange equipment 300 may be a wall-hung boiler or an electric heater, and this application embodiment does not specifically limit it.

[0063] It is understood that the number of the aforementioned indoor heat exchange equipment 100 can be two, three, or more, and this application embodiment does not make a specific limitation.

[0064] It should be noted that regarding the installation location of the aforementioned indoor heat exchange equipment, multiple indoor heat exchange equipment can be installed in the same space, for example, multiple indoor heat exchange equipment can be installed simultaneously in a room, or multiple indoor heat exchange equipment can be installed simultaneously in a living room; alternatively, multiple indoor heat exchange equipment can also be installed in different spaces, for example, some indoor heat exchange equipment can be installed in a room and others in a living room, or some indoor heat exchange equipment can be installed in a first room and others in a second room. This application does not specifically limit the installation location of the indoor heat exchange equipment in this embodiment.

[0065] It should be noted that, regarding the installation location of the indoor heat exchange equipment within the space, in this embodiment of the application, the indoor heat exchange equipment can be installed on the ceiling of the room, or on the floor of the room, or the installation location of the indoor heat exchange equipment can be reasonably allocated according to actual usage needs. This embodiment of the application does not make specific limitations in this regard.

[0066] Additionally, it should be noted that the type of indoor heat exchange equipment mentioned above can be a fan coil terminal combined with a fan coil unit, or a radiant terminal combined with a radiant panel, such as a ceiling radiant panel or a floor heating system, or other types of terminal equipment. This application embodiment does not specifically limit this type of equipment.

[0067] like Figure 1 As shown, exemplarily, when the outdoor temperature is less than or equal to the outdoor set temperature and / or the water supply temperature is less than the set water supply temperature and / or the current power of the heat pump device 200 is greater than or equal to the preset maximum power and / or the indoor temperature is less than or equal to the indoor set temperature, a valve switching command is generated; then, according to the valve switching command, the three-way valve 410 of the valve assembly 400 is switched and controlled. When the three-way valve 410 is a switch valve, the inflow channel is connected to the first outflow channel, and the inflow channel is closed to the second outflow channel, and the set water supply temperature is used as the set outlet water temperature of the auxiliary heat exchange device 300; when the three-way valve 410 is a proportional valve... When the valve is open, the valve opening between the inflow channel and the first outflow channel is increased, and the valve opening between the inflow channel and the second outflow channel is decreased. The set outlet temperature of the auxiliary heat exchanger is determined based on the set supply water temperature and the set outlet temperature. Then, when the supply water temperature is greater than or equal to the set supply water temperature and the indoor temperature is greater than the set indoor temperature, the auxiliary heat exchanger 300 stops producing hot water, and the heat pump device 200 starts operating. The three-way valve 410 is switched and adjusted to reduce the water flow from the second return water pipe through the auxiliary heat exchanger 300 to the second supply water pipe, and to increase the water flow from the first common end to the second common end. Therefore, by adjusting the water flow to the auxiliary heat exchanger 300 through the control valve assembly 400, based on the complementary series connection of the heat pump device 200 and the auxiliary heat exchanger 300, the problem of poor performance of the heat pump device 200 alone is solved, thereby improving the heating effect of the heat pump water system.

[0068] It should be noted that when the three-way valve 410 is a proportional valve, the set outlet water temperature of the auxiliary heat exchanger 300 is: Ta2=Ta+(Ta-T10)+Td, where Ta2 is the set outlet water temperature of the auxiliary heat exchanger 300, Ta is the set supply water temperature, T10 is the supply water temperature, and Td is the compensation temperature.

[0069] It is understood that the aforementioned compensation temperature can be set according to actual needs and is a fixed value; this application embodiment does not impose specific limitations.

[0070] like Figure 2 and Figure 3As shown, exemplarily, when the outdoor temperature is less than or equal to the outdoor set temperature and / or the water supply temperature is less than the set water supply temperature and / or the current power of the heat pump device 200 is greater than or equal to the preset maximum power and / or the indoor temperature is less than or equal to the indoor set temperature, a valve switching command is generated; then, according to the valve switching command, the first two-way valve 420 and the second two-way valve 430 of the valve assembly 400 are switched, causing the valve opening of the first two-way valve 420 to increase and the valve opening of the second two-way valve 430 to decrease, and according to the set... The supply water temperature and the set outlet water temperature of the auxiliary heat exchanger 300 are determined. Then, when the supply water temperature is greater than or equal to the set supply water temperature and the indoor temperature is greater than the set indoor temperature, the auxiliary heat exchanger 300 is stopped from producing hot water, and the heat pump device 200 is started. The first two-way valve 420 and the second two-way valve 430 are switched and adjusted to reduce the water flow from the second return water pipe through the auxiliary heat exchanger 300 to the second supply water pipe, and increase the water flow from the first common end to the second common end. Therefore, by adjusting the water flow to the auxiliary heat exchanger 300 through the control valve assembly 400, based on the complementary series structure of the heat pump device 200 and the auxiliary heat exchanger 300, the problem of poor performance of the heat pump device 200 alone is solved, thereby improving the heating effect of the heat pump water system.

[0071] It should be noted that when the valve assembly 400 is the first two-way valve 420 and the second two-way valve 430, the set outlet water temperature of the auxiliary heat exchanger 300 is: Ta2=Ta+(Ta-T10)+Td, where Ta2 is the set outlet water temperature of the auxiliary heat exchanger 300, Ta is the set supply water temperature, T10 is the supply water temperature, and Td is the compensation temperature.

[0072] It is understood that the aforementioned compensation temperature can be set according to actual needs and is a fixed value; this application embodiment does not impose specific limitations.

[0073] The above provides a detailed description of the preferred embodiments of this application. However, this application is not limited to the above-described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A heat pump water system, characterized in that, include: Indoor heat exchange equipment; The heat pump device is connected to the inlet of the indoor heat exchange equipment through a first water supply pipeline and to the outlet of the indoor heat exchange equipment through a first return water pipeline. The auxiliary heat exchange equipment is connected to the first water supply pipeline through the second return water pipeline and the second water supply pipeline; A valve assembly is disposed in the second return water pipeline and / or the second supply water pipeline, the valve assembly being used to regulate the water flow rate from the second return water pipeline through the auxiliary heat exchange equipment to the second supply water pipeline.

2. The heat pump water system according to claim 1, characterized in that, The second return water pipe and the first water supply pipe intersect at a first common end, and the second water supply pipe and the first water supply pipe intersect at a second common end. The valve assembly is also disposed on the first water supply pipe, and the valve assembly is also used to regulate the water flow from the first common end to the second common end.

3. The heat pump water system according to claim 2, characterized in that, The valve assembly includes a three-way valve, which has an inflow channel, a first outflow channel, and a second outflow channel. The inflow channel is connected to the heat pump device, the first outflow channel is connected to the auxiliary heat exchange device through the second return water pipeline, and the second outflow channel is connected to the indoor heat exchange device.

4. The heat pump water system according to claim 2, characterized in that, The valve assembly includes a first two-way valve and a second two-way valve. The first two-way valve is disposed in the second return water pipeline or the second supply water pipeline, and the second two-way valve is disposed in the first supply water pipeline between the first common end and the second common end.

5. The heat pump water system according to any one of claims 1 to 4, characterized in that, The indoor heat exchange equipment includes at least one of the following: fan coil unit, radiant panel, and underfloor heating.

6. The heat pump water system according to any one of claims 1 to 4, characterized in that, The heat pump water system also includes a manifold, through which the first water supply pipeline and the first return pipeline are connected to the indoor heat exchange equipment.

7. The heat pump water system according to any one of claims 1 to 4, characterized in that, The heat pump device is equipped with a water-fluorine heat exchanger, a water pump, and a heat pump pipeline. The water-fluorine heat exchanger and the water pump are both located in the heat pump pipeline. One end of the heat pump pipeline is connected to the first water supply pipeline, and the other end is connected to the first return water pipeline.

8. The heat pump water system according to any one of claims 1 to 4, characterized in that, The heat pump device is provided in one or more ways. When there are multiple heat pump devices, the multiple heat pump devices are connected to each other through the first water supply pipeline and the first water return pipeline.

9. The heat pump water system according to any one of claims 1 to 4, characterized in that, The heat pump water system also includes a buffer water tank, which is located in the first return water pipeline.

10. The heat pump water system according to claim 9, characterized in that, The heat pump water system also includes a water supply valve and a water inlet pipe. The water inlet pipe is connected to the buffer water tank, and the water supply valve is located on the water inlet pipe.

11. The heat pump water system according to claim 10, characterized in that, The heat pump water system also includes an outlet pipe, and the inlet pipe is connected to the outlet pipe through the auxiliary heat exchange equipment.

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