Dual source heat pump system

Abstract

The application discloses a double-source heat pump system, and relates to the technical field of heat pump systems, which comprises a first heat exchanger and a second heat exchanger connected in series on a refrigerant circulation loop, and a throttling device communicated between the first heat exchanger and the second heat exchanger. When a heating mode is selected, high-temperature and high-pressure refrigerant flows in the first heat exchanger, and low-temperature and low-pressure refrigerant flows in the second heat exchanger after the throttling device throttles and depressurizes, so that the first heat exchanger can provide a heat source, and the second heat exchanger can provide a cold source. When a refrigeration mode is selected, high-temperature and high-pressure refrigerant flows in the second heat exchanger, and low-temperature and low-pressure refrigerant flows in the first heat exchanger after the throttling device throttles and depressurizes, so that the first heat exchanger can provide a cold source, and the second heat exchanger can provide a heat source. Therefore, in the refrigeration mode or the heating mode, the double-source heat pump system can provide a heat source by one water flow path and a cold source by another water flow path, and can meet the demand of a single cold source or a single heat source of an energy-using module.

Description

Technical Field

[0001] This application relates to the field of heat pump system technology, and more particularly to a dual-source heat pump system. Background Technology

[0002] Currently, renewable energy is gradually becoming the focus of market attention. Among them, the research and application of solar energy and air source heat pump systems are receiving increasing attention from the market. However, photovoltaic (PV) panels still have certain limitations in terms of photoelectric conversion efficiency, which can usually only reach 10% to 15%. A large amount of solar energy is converted into heat rather than electricity, resulting in energy waste.

[0003] In related technologies, PV photovoltaic panels are combined with heat pump systems to utilize the photothermal effect of solar energy to convert the originally wasted heat into useful heat energy for the heat pump system. In addition, the heat pump system is also equipped with heat load equipment such as energy storage batteries and energy storage inverters. The heat load equipment will generate a certain amount of heat during operation, so the heat load equipment needs to be cooled down.

[0004] However, heat pump systems have both cooling and heating modes. When users need heating and switch the heat pump system to heating mode, the heat pump system cannot provide the low-temperature cold source required by the heat load equipment to meet the cooling needs of the heat load equipment. Summary of the Invention

[0005] This application provides a dual-source heat pump system that can solve the technical problem that the heat pump system cannot always meet the needs of a single cold source or a single heat source of the energy-consuming module when switching between cooling and heating modes.

[0006] This application provides a dual-source heat pump system, including a compressor having an exhaust end and a return end;

[0007] The first heat exchanger includes a first refrigerant flow path and a first water flow path in heat exchange contact. The first refrigerant flow path has a first port and a second port that are mutually connected. The second port is selectively connected to one of the exhaust end and the return end.

[0008] The second heat exchanger includes a second refrigerant flow path and a second water flow path in heat exchange contact. The second refrigerant flow path has a first port and a second port that are mutually connected. The second port is selectively connected to the other of the exhaust end and the return end.

[0009] A throttling device is provided, which connects the first port and the first pipe opening, so that the compressor, the first heat exchanger, the throttling device and the second heat exchanger are sequentially connected to form a refrigerant circulation loop;

[0010] The energy-consuming module is selectively connected to one of the first water flow path and the second water flow path to form an energy-consuming loop.

[0011] In some embodiments, the first water flow path has a third port and a fourth port that are interconnected, the second water flow path has a third port and a fourth port that are interconnected, the energy module has a first port and a second port that are interconnected, the first port is selectively connected to one of the third port and the third port, and the second port is selectively connected to one of the fourth port and the fourth port.

[0012] Specifically, when the first flow port is connected to the third port, the second flow port is connected to the fourth port; when the first flow port is connected to the third port, the second flow port is connected to the fourth port.

[0013] In some embodiments, the energy-consuming module includes a heat load element having a first flow port and a second flow port;

[0014] When the second port is connected to the exhaust end and the second pipe port is connected to the return end, the first flow port is connected to the third pipe port and the second flow port is connected to the fourth pipe port, so that the second water flow path cools the heat load component;

[0015] When the second port is connected to the return gas end and the second pipe port is connected to the exhaust end, the first flow port is connected to the third port and the second flow port is connected to the fourth port, so that the first water flow path cools the heat load component.

[0016] In some embodiments, the energy-consuming module includes a heat storage module having a first inlet and a second inlet;

[0017] When the second port is connected to the exhaust end and the second pipe port is connected to the return gas end, the first flow port is connected to the third port and the second flow port is connected to the fourth port, so that the first water flow path can store heat for the heat storage module.

[0018] When the second port is connected to the return gas end and the second pipe port is connected to the exhaust end, the first flow port is connected to the third pipe port and the second flow port is connected to the fourth pipe port, so that the second water flow path can store heat for the heat storage module.

[0019] In some embodiments, the dual-source heat pump system includes:

[0020] A first multi-channel valve has at least three valve ports. The first valve port of the first multi-channel valve is connected to the third port, the second valve port of the first multi-channel valve is connected to the third pipe port, and the third valve port of the first multi-channel valve is connected to the first flow port.

[0021] The first multi-channel valve is used to control the connection and disconnection between the first flow port and the third port, and to control the connection and disconnection between the first flow port and the third pipe port.

[0022] In some embodiments, the dual-source heat pump system includes:

[0023] The second multi-channel valve has at least two valve ports, the first valve port of the second multi-channel valve is connected to the second flow port, and the second valve port of the second multi-channel valve is connected to the fourth port.

[0024] The third multi-channel valve has at least two valve ports, the first valve port of the third multi-channel valve is connected to the second flow port, and the second valve port of the third multi-channel valve is connected to the fourth pipe port;

[0025] The second multi-channel valve is used to control the connection between the second flow port and the fourth port, and the third multi-channel valve is used to control the connection between the second flow port and the fourth port.

[0026] In some embodiments, the dual-source heat pump system includes:

[0027] The heating module has a first interface and a second interface that are interconnected. The first interface is connected to the second valve port of the second multi-channel valve, and the second interface is connected to the fourth port.

[0028] The second multi-channel valve has three valve ports, and the third valve port of the second multi-channel valve is connected to the third port. The second multi-channel valve is used to control the connection and disconnection between the third port and the first interface.

[0029] In some embodiments, the dual-source heat pump system includes:

[0030] The fourth multi-channel valve has three valve ports. The first valve port of the fourth multi-channel valve is connected to the fourth port, the second valve port of the fourth multi-channel valve is connected to the second port, and the third valve port of the fourth multi-channel valve is connected to the second valve port of the second multi-channel valve.

[0031] The fourth multi-channel valve is used to control the connection and disconnection between the fourth port and the second interface, and to control the connection and disconnection between the fourth port and the second valve port of the second multi-channel valve.

[0032] In some embodiments, the dual-source heat pump system includes:

[0033] A photovoltaic module, wherein the photovoltaic module has a first water inlet and a second water inlet that are interconnected, the first water inlet being connected to the second valve port of the third multi-channel valve, and the second water inlet being connected to the fourth pipe port;

[0034] The third multi-channel valve has three valve ports. The third valve port of the third multi-channel valve is connected to the third pipe port. The third multi-channel valve is used to control the connection and disconnection between the third pipe port and the first water port.

[0035] In some embodiments, the dual-source heat pump system includes:

[0036] The fifth multi-channel valve has three valve ports. The first valve port of the fifth multi-channel valve is connected to the fourth pipe port, the second valve port of the fifth multi-channel valve is connected to the second water port, and the third valve port of the fifth multi-channel valve is connected to the second valve port of the third multi-channel valve.

[0037] The fifth multi-channel valve is used to control the connection and disconnection between the fourth pipe port and the second water port, and to control the connection and disconnection between the fourth pipe port and the second valve port of the third multi-channel valve.

[0038] In some embodiments, the dual-source heat pump system includes:

[0039] A boiler assembly having a first port and a second port that are interconnected, the first port being connected to the second valve port of the third multi-channel valve, and the second port being connected to the fourth pipe port;

[0040] The third multi-channel valve has three valve ports. The third valve port of the third multi-channel valve is connected to the third pipe port. The third multi-channel valve is used to control the connection and disconnection between the third pipe port and the first port.

[0041] In some embodiments, a water pump is provided on both the first water flow path and the second water flow path.

[0042] In some embodiments, both the first heat exchanger and the second heat exchanger are plate heat exchangers.

[0043] In some embodiments, the refrigerant circulation loop further includes:

[0044] A third heat exchanger is connected to the second pipe port;

[0045] A gas-liquid separator, wherein the gas-liquid separator is connected to the return gas end;

[0046] A four-way valve, wherein the first valve port of the four-way valve is connected to the exhaust end, the second valve port of the four-way valve is connected to the second port, the third valve port of the four-way valve is connected to the gas-liquid separator, and the fourth valve port of the four-way valve is connected to the third heat exchanger.

[0047] The dual-source heat pump system based on the embodiments of this application has at least the following beneficial effects:

[0048] By setting a first heat exchanger and a second heat exchanger in the refrigerant circulation loop, the first heat exchanger includes a first refrigerant flow path and a first water flow path capable of heat exchange. The second port of the first refrigerant flow path is selectively connected to either the discharge end or the return end of the compressor. The second heat exchanger includes a second refrigerant flow path and a second water flow path capable of heat exchange, and the second port of the second refrigerant flow path is selectively connected to either the discharge end or the return end. A throttling device connects the first port and the first port, so that the compressor, the first heat exchanger, the throttling device, and the second heat exchanger are sequentially connected to form a refrigerant circulation loop. When the refrigerant circulation loop selects the heating mode, the second port is selected to be connected to the discharge end, and the second port is selected to be connected to the return end. The compressor discharges high-temperature, high-pressure refrigerant into the first refrigerant flow path. After the refrigerant is throttled and depressurized by the throttling device, it becomes a low-temperature, low-pressure refrigerant that flows into the second refrigerant flow path and finally returns to the compressor from the return gas end. At this time, the first water flow path and the first refrigerant flow path exchange heat to provide a heat source, and the second water flow path and the second refrigerant flow path exchange heat to provide a cold source. When the refrigerant circulation loop selects the refrigeration mode, the second port is connected to the return gas end, and the second pipe port is connected to the exhaust end. The compressor discharges high-temperature, high-pressure refrigerant into the second refrigerant flow path. After the high-temperature, high-pressure refrigerant is throttled and depressurized by the throttling device, it becomes a low-temperature, low-pressure refrigerant that flows into the first refrigerant flow path and finally returns to the compressor from the return gas end. At this time, the first water flow path and the first refrigerant flow path exchange heat to provide a cold source, and the second water flow path and the second refrigerant flow path exchange heat to provide a heat source. Therefore, in either cooling or heating mode, a dual-source heat pump system always uses one water path to provide heat and the other to provide cold, allowing the energy-consuming module to always choose to connect to either the water path providing cold or the water path providing heat, thus meeting the needs of the energy-consuming module for either a single cold or a single heat source. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of a dual-source heat pump system provided in an embodiment of this application;

[0051] Figure 2 This application provides a schematic diagram of a dual-source heat pump system switching to heating mode.

[0052] Figure 3 This is a schematic diagram of a dual-source heat pump system switching to cooling mode, provided as an embodiment of this application.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100. Dual-source heat pump system; 10. Compressor; 101. Exhaust end; 102. Return end; 20. First heat exchanger; 201. First port; 202. Second port; 203. Third port; 204. Fourth port; 30. Second heat exchanger; 301. First inlet; 302. Second inlet; 303. Third inlet; 304. Fourth inlet; 40. Throttling device; 50. Energy module; 51. Heat load component; 52. Heat storage module; 501. First outlet; 502. Second outlet; 60. Heating module; 601. First interface; 602. Second interface; 70. Photovoltaic module; 701. First water inlet; 702. Second water inlet; 80. Water pump; 91. Third heat exchanger; 92. Gas-liquid separator; 93. Four-way valve;

[0055] SV1, First multi-channel valve; SV2, Second multi-channel valve; SV3, Third multi-channel valve; SV4, Fourth multi-channel valve; SV5, Fifth multi-channel valve. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0057] Please see Figures 1 to 3This application provides a dual-source heat pump system 100, which is an energy utilization system capable of using two or more heat sources for heat exchange to achieve functions such as heating, cooling, and hot water supply. The dual-source heat pump system 100 includes a refrigerant circulation loop and an energy consumption module 50. The refrigerant circulation loop may include a compressor 10, a first heat exchanger 20, a throttling device 40, and a second heat exchanger 30 connected in sequence.

[0058] Specifically, the compressor 10 may have an exhaust end 101 and a return end 102; the first heat exchanger 20 may include a first refrigerant flow path and a first water flow path that exchanges heat with the first refrigerant flow path; the first refrigerant flow path has a first port 201 and a second port 202 that are mutually connected; the second port 202 may be selectively connected to one of the exhaust end 101 and the return end 102; the second heat exchanger 30 may include a second refrigerant flow path and a second water flow path that exchanges heat with the second refrigerant flow path; the second... The refrigerant flow path has a first port 301 and a second port 302 that are interconnected. The second port 302 can be selectively connected to the other of the exhaust end 101 and the return end 102. The two ends of the throttling device 40 are respectively connected to the first port 201 and the first port 301, so that the compressor 10, the first heat exchanger 20, the throttling device 40 and the second heat exchanger 30 can be sequentially connected to form a refrigerant circulation loop. The throttling device 40 is a device that can play a role in throttling and reducing pressure, such as a throttling valve, a capillary tube, an expansion valve, etc.

[0059] The energy-consuming module 50 is a component that can connect to the first water flow path or the second water flow path for heat exchange. More specifically, the energy-consuming module 50 can selectively connect to one of the first water flow path and the second water flow path to form an energy-consuming circuit. After the energy-consuming module 50 exchanges heat with the first water flow path or the second water flow path, it can supply hot water, heating or cooling to the user. The energy-consuming module 50 can also use the first water flow path or the second water flow path to dissipate heat for itself.

[0060] Optionally, combined Figure 2When the refrigerant circulation loop selects the heating mode, the second port 202 is connected to the exhaust end 101, and the second pipe port 302 is connected to the return gas end 102. The compressor 10 can discharge high-temperature and high-pressure refrigerant into the first refrigerant flow path. After the high-temperature and high-pressure refrigerant is throttled and depressurized by the throttling device 40, it can become low-temperature and low-pressure refrigerant and flow into the second refrigerant flow path. Finally, it returns to the compressor 10 from the return gas end 102. This allows the first water flow path to provide a heat source after heat exchange with the first refrigerant flow path, and the second water flow path to provide a cold source after heat exchange with the second refrigerant flow path. At this time, if the energy module 50 needs a heat source, it can be connected to the first water flow path. If the energy module 50 needs a cold source, it can be connected to the second water flow path.

[0061] Combination Figure 3 When the refrigerant circulation loop selects the refrigeration mode, the second port 202 is connected to the return gas end 102, and the second pipe port 302 is connected to the exhaust end 101. The compressor 10 can discharge high-temperature and high-pressure refrigerant into the second refrigerant flow path. After the high-temperature and high-pressure refrigerant is throttled and depressurized by the throttling device 40, it can become low-temperature and low-pressure refrigerant and flow into the first refrigerant flow path. Finally, it returns to the compressor 10 from the return gas end 102. This allows the first water flow path to provide a cold source after heat exchange with the first refrigerant flow path, and the second water flow path to provide a heat source after heat exchange with the second refrigerant flow path. At this time, if the energy module 50 needs a heat source, it can be connected to the second water flow path. If the energy module 50 needs a cold source, it can be connected to the first water flow path.

[0062] Therefore, in either cooling or heating mode, the dual-source heat pump system 100 always has one water path that can provide a heat source and another water path that can provide a cold source, so that the energy-consuming module 50 can always choose to connect to the water path that provides the cold source, or always choose to connect to the water path that provides the heat source, to meet the needs of the energy-consuming module 50 for a single cold source or a single heat source.

[0063] Please see Figure 1 In some embodiments, the first water flow path may have a third port 203 and a fourth port 204 that are interconnected, the second water flow path may have a third pipe opening 303 and a fourth pipe opening 304 that are interconnected, and the power module 50 may have a first flow opening 501 and a second flow opening 502 that are interconnected.

[0064] Specifically, in combination Figure 2 and Figure 3The first outlet 501 can be selectively connected to either the third port 203 or the third pipe outlet 303, and the second outlet 502 can be selectively connected to either the fourth port 204 or the fourth pipe outlet 304. It should be noted that when the first outlet 501 is connected to the third port 203, the second outlet 502 is connected to the fourth port 204, so that the energy module 50 can be connected to the first water flow path to form a first energy loop. When the first outlet 501 is connected to the third pipe outlet 303, the second outlet 502 is connected to the fourth pipe outlet 304, so that the energy module 50 can be connected to the second water flow path to form a second energy loop. Therefore, the energy module 50 can selectively connect to the first water flow path or the second water flow path through the first outlet 501 and the second outlet 502 to meet the needs of a single cold source or a single heat source.

[0065] Please see Figure 1 In some embodiments, the energy module 50 may include a heat load element 51, which may have a first outlet 501 and a second outlet 502. When the second port 202 is connected to the exhaust end 101 and the second pipe port 302 is connected to the return end 102, the first outlet 501 of the heat load element 51 is connected to the third pipe port 303, and the second outlet 502 of the heat load element 51 is connected to the fourth pipe port 304, so that the second water flow cools the heat load element 51. When the second port 202 is connected to the return end 102 and the second pipe port 302 is connected to the exhaust end 101, the first outlet 501 of the heat load element 51 is connected to the third port 203, and the second outlet 502 of the heat load element 51 is connected to the fourth port 204, so that the first water flow path cools the heat load element 51.

[0066] Optionally, the heat load component 51 is a component in the dual-source heat pump system 100 that generates heat, such as an energy storage battery and a PCS inverter (energy storage converter, power conversion system), and the heat load component 51 has a cooling requirement.

[0067] Combination Figure 2When the second port 202 is connected to the exhaust end 101 and the second pipe port 302 is connected to the return gas end 102, the dual-source heat pump system 100 is in heating mode. The compressor 10 can discharge high-temperature and high-pressure refrigerant into the first refrigerant flow path. After the high-temperature and high-pressure refrigerant is throttled and depressurized by the throttling device 40, it can become low-temperature and low-pressure refrigerant and flow into the second refrigerant flow path. Finally, it returns to the compressor 10 from the return gas end 102. By connecting the first outlet 501 of the heat load component 51 with the third pipe port 303 and connecting the second outlet 502 of the heat load component 51 with the fourth pipe port 304, the heat load component 51 is connected to the second water flow path to form a loop. After the low-temperature and low-pressure refrigerant in the second water flow path exchanges heat with the second refrigerant flow path, it can cool down the heat load component 51.

[0068] Combination Figure 3 When the second port 202 is connected to the return gas end 102 and the second pipe port 302 is connected to the exhaust end 101, the dual-source heat pump system 100 is in cooling mode. The compressor 10 can discharge high-temperature and high-pressure refrigerant into the second refrigerant flow path. After the high-temperature and high-pressure refrigerant is throttled and depressurized by the throttling device 40, it can become low-temperature and low-pressure refrigerant and flow into the first refrigerant flow path. Finally, it returns to the compressor 10 from the return gas end 102. By connecting the first outlet 501 of the heat load component 51 to the third port 203 and connecting the second outlet 502 of the heat load component 51 to the fourth port 204, the heat load component 51 is connected to the first water flow path to form a loop. After the low-temperature and low-pressure refrigerant in the first water flow path exchanges heat with the first refrigerant flow path, it can cool down the heat load component 51.

[0069] Therefore, in both heating and cooling modes, the dual-source heat pump system 100 always has one water flow path to cool the heat load component 51, so that the dual-source heat pump system 100 can meet the needs of a single cold source for the heat load component 51 when switching between heating and cooling modes.

[0070] Please see Figure 1In some embodiments, the energy-consuming module 50 may include a heat storage module 52, which may have a first outlet 501 and a second outlet 502. When the second port 202 is connected to the exhaust end 101 and the second pipe port 302 is connected to the return gas end 102, the first outlet 501 of the heat storage module 52 is connected to the third port 203, and the second outlet 502 of the heat storage module 52 is connected to the fourth port 204, so that the first water flow provides heat storage to the heat storage module 52. When the second port 202 is connected to the return gas end 102 and the second pipe port 302 is connected to the exhaust end 101, the first outlet 501 of the heat storage module 52 is connected to the third pipe port 303, and the second outlet 502 of the heat storage module 52 is connected to the fourth pipe port 304, so that the second water flow provides heat storage to the heat storage module 52.

[0071] Optionally, the heat storage module 52 is internally provided with a phase change material and a heat exchange tube assembly. The heat exchange tube assembly is embedded in the phase change material and has a heat storage flow path and a heat release flow path. The heat storage flow path has a first outlet 501 and a second outlet 502. The heat storage flow path can transfer heat to the phase change material for heat storage, and the heat release flow path can absorb the heat released by the phase change material to heat domestic water, thereby providing hot water to users.

[0072] Combination Figure 2 When the second port 202 is connected to the exhaust end 101 and the second pipe port 302 is connected to the return gas end 102, the dual-source heat pump system 100 is in heating mode. The compressor 10 can discharge high-temperature and high-pressure refrigerant into the first refrigerant flow path. After the high-temperature and high-pressure refrigerant is throttled and depressurized by the throttling device 40, it can become low-temperature and low-pressure refrigerant and flow into the second refrigerant flow path. Finally, it returns to the compressor 10 from the return gas end 102. By connecting the first flow port 501 of the heat storage module 52 to the third port 203 and connecting the second flow port 502 of the heat storage module 52 to the fourth port 204, the heat storage module 52 is connected to the first water flow path to form a loop. After the high-temperature and high-pressure refrigerant in the first water flow path exchanges heat with the first refrigerant flow path, the heat medium in the first water flow path can flow into the heat storage flow path and transfer heat to the phase change material, which can store heat for the heat storage module 52.

[0073] Combination Figure 3When the second port 202 is connected to the return gas end 102 and the second pipe port 302 is connected to the exhaust end 101, the dual-source heat pump system 100 is in cooling mode. The compressor 10 can discharge high-temperature and high-pressure refrigerant into the second refrigerant flow path. After the high-temperature and high-pressure refrigerant is throttled and depressurized by the throttling device 40, it can become low-temperature and low-pressure refrigerant and flow into the first refrigerant flow path. Finally, it returns to the compressor 10 from the return gas end 102. By connecting the first flow port 501 of the heat storage module 52 with the third pipe port 303 and connecting the second flow port 502 of the heat storage module 52 with the fourth pipe port 304, the heat storage module 52 is connected to the second water flow path to form a loop. After the high-temperature and high-pressure refrigerant in the second water flow path exchanges heat with the second refrigerant flow path, the heat medium in the second water flow path can flow into the heat storage flow path and transfer heat to the phase change material, which can store heat for the heat storage module 52.

[0074] Therefore, in both heating and cooling modes, the dual-source heat pump system 100 always has one water path to store heat for the heat storage module 52, so that the dual-source heat pump system 100 can meet the single heat source needs of the heat storage module 52 when switching between heating and cooling modes.

[0075] It should be noted that the dual-source heat pump system 100 may include multiple energy-consuming modules 50, and each energy-consuming module 50 may be selectively connected to one of the first water flow path and the second water flow path. In this embodiment, the number of energy-consuming modules 50 is not limited.

[0076] by Figure 2 and Figure 3 Taking this as an example, the dual-source heat pump system 100 includes two energy-consuming modules 50. One energy-consuming module 50 includes a heat load component 51, and the other energy-consuming module 50 includes a heat storage module 52. Both the heat load component 51 and the heat storage module 52 have a first outlet 501 and a second outlet 502, and both the heat load component 51 and the heat storage module 52 can be selectively connected to one of the first water flow path and the second water flow path. When the dual-source heat pump system 100 is in heating mode, the heat load component 51 can be selectively connected to the second water flow path. The heat storage module 52 can be selectively connected to the first water flow path, so that in heating mode, the dual-source heat pump system 100 can provide both a cold source for the heat load component 51 and a heat source for the heat storage module 52. When the dual-source heat pump system 100 is in cooling mode, the heat load component 51 can be selectively connected to the first water flow path, and the heat storage module 52 can be selectively connected to the second water flow path, so that in cooling mode, the dual-source heat pump system 100 can also provide both a cold source for the heat load component 51 and a heat source for the heat storage module 52. Therefore, the dual-source heat pump system 100 can meet both the cold source and heat source requirements of the energy consumption module 50 in both heating and cooling modes.

[0077] Please see Figures 1 to 3 In some embodiments, the dual-source heat pump system 100 may include a first multi-channel valve SV1 having at least three valve ports. The first valve port of the first multi-channel valve SV1 is connected to a third port 203, the second valve port of the first multi-channel valve SV1 is connected to a third pipe port 303, and the third valve port of the first multi-channel valve SV1 is connected to a first flow port 501. The first multi-channel valve SV1 can be used to control the opening and closing of the first flow port 501 and the third port 203, as well as to control the opening and closing of the first flow port 501 and the third pipe port 303.

[0078] Specifically, in combination Figure 3 When the first and third valve ports of the first multi-channel valve SV1 are opened and the second valve port of the first multi-channel valve SV1 is closed, the third port 203 can be connected to the first flow port 501 through the channel between the first and third valve ports of the first multi-channel valve SV1, so that the first water flow path can be connected to the energy consumption module 50, and the second water flow path is disconnected from the energy consumption module 50, so that the energy consumption module 50 can exchange heat with the first water flow path.

[0079] Combination Figure 2 When the second and third valve ports of the first multi-channel valve SV1 are opened and the second valve port of the first multi-channel valve SV1 is closed, the third port 303 can be connected to the first flow port 501 through the channel between the second and third valve ports of the first multi-channel valve SV1, so that the second water flow path can be connected to the energy consumption module 50, and the first water flow path is disconnected from the energy consumption module 50, so that the energy consumption module 50 can exchange heat with the second water flow path.

[0080] Therefore, when the dual-source heat pump system 100 switches between heating and cooling modes, the first multi-channel valve SV1 can be used to easily control the connection between the energy-consuming module 50 and the first or second water flow path, so that the energy-consuming module 50 can always use a single heat source for heat storage or a single cold source for cooling.

[0081] Please see Figure 1 In some embodiments, the dual-source heat pump system 100 may further include a second multi-channel valve SV2 and a third multi-channel valve SV3. Both the second multi-channel valve SV2 and the third multi-channel valve SV3 have at least two valve ports. The first valve port of the second multi-channel valve SV2 is connected to the second flow port 502, and the second valve port of the second multi-channel valve SV2 is connected to the fourth port 204, so that the second multi-channel valve SV2 can be used to control the on / off state of the second flow port 502 and the fourth port 204. The first valve port of the third multi-channel valve SV3 is connected to the second flow port 502, and the second valve port of the third multi-channel valve SV3 is connected to the fourth pipe port 304, so that the third multi-channel valve SV3 can be used to control the on / off state of the second flow port 502 and the fourth pipe port 304.

[0082] Optionally, combined Figure 3 When the first and third valve ports of the first multi-channel valve SV1 are opened and the second valve port of the first multi-channel valve SV1 is closed, the first and second valve ports of the second multi-channel valve SV2 can be opened, so that the second flow port 502 passes through the channel between the first and second valve ports of the second multi-channel valve SV2 and the fourth port 204. The first valve port of the third multi-channel valve SV3 is closed, so that the second flow port 502 is disconnected from the fourth pipe port 304. Thus, the first water flow path can be connected to the energy consumption module 50, and the second water flow path is disconnected from the energy consumption module 50.

[0083] When the second and third valve ports of the first multi-channel valve SV1 are open and the first valve port of the first multi-channel valve SV1 is closed, the first valve port of the second multi-channel valve SV2 can be closed, disconnecting the second flow port 502 from the fourth port 204. At the same time, the first and second valve ports of the third multi-channel valve SV3 can be opened, allowing the second flow port 502 to be connected to the fourth pipe port 304 through the channel between the first and second valve ports of the third multi-channel valve SV3. Thus, the second water flow path can be connected to the energy consumption module 50, and the first water flow path can be disconnected from the energy consumption module 50, which further facilitates the control of the energy consumption module 50 to be connected to the first or second water flow path.

[0084] Please see Figure 1 In some embodiments, the dual-source heat pump system 100 further includes a heating module 60, which may have a first interface 601 and a second interface 602 that are interconnected. The first interface 601 is connected to the second valve port of the second multi-channel valve SV2, and the second interface 602 is connected to the fourth port 204. The second multi-channel valve SV2 has three valve ports, and the third valve port of the second multi-channel valve SV2 may be connected to the third port 203. The second multi-channel valve SV2 is used to control the on / off state between the third port 203 and the first interface 601.

[0085] Optionally, the heating module 60 can be a device capable of providing heating, such as radiators or underfloor heating, combined with... Figure 2 When a user needs to heat the room, the dual-source heat pump system 100 can be switched to heating mode, and the second and third valve ports of the second multi-channel valve SV2 can be opened, so that the third port 203 can be connected to the first interface 601 through the channel between the second and third valve ports of the second multi-channel valve SV2. Thus, the heating module 60 can be connected to the first water flow path to form a heating circuit. The first water flow path can transfer heat to the heating module 60, and the heating module 60 can then heat the room.

[0086] Furthermore, when the energy module 50 requires a cold source, the first valve port of the second multi-channel valve SV2 can be controlled to close, disconnecting the energy module 50 from the first water flow path and preventing high-temperature water in the first water flow path from flowing into the energy module 50. When the energy module 50 requires a heat source, the first valve port of the second multi-channel valve SV2 can be controlled to open, connecting the energy module 50 to the first water flow path, so that the first water flow path can still meet the heat source requirements of the energy module 50. Therefore, the second multi-channel valve SV2 can also control the opening or closing of the heating module 60, facilitating users to provide room heating and meeting the heat source requirements of the energy module 50.

[0087] Please see Figure 1 In some embodiments, the dual-source heat pump system 100 includes a fourth multi-channel valve SV4, which may have three valve ports. The first valve port of the fourth multi-channel valve SV4 may be connected to a fourth port 204, the second valve port of the fourth multi-channel valve SV4 may be connected to a second interface 602, and the third valve port of the fourth multi-channel valve SV4 may be connected to the second valve port of the second multi-channel valve SV2. The fourth multi-channel valve SV4 is used to control the connection and disconnection between the fourth port 204 and the second interface 602, and to control the connection and disconnection between the fourth port 204 and the second valve port of the second multi-channel valve SV2.

[0088] Optionally, when the energy-consuming module 50 is a heat storage module 52, and the user needs hot water but has no heating demand, the first and third valve ports of the fourth multi-channel valve SV4 can be opened, and the second valve port of the fourth multi-channel valve SV4 can be closed. This allows the fourth port 204 to be connected to the second valve port of the second multi-channel valve SV2 through the channel between the first and third valve ports of the fourth multi-channel valve SV4, and the heating module 60 to be disconnected from the first water flow path. At the same time, the first and second valve ports of the second multi-channel valve SV2 can be opened, allowing the heat storage module 52 to be connected to the first water flow path. Thus, the heat storage module 52 can supply hot water to the user, and it also allows the heating module 60 to conveniently waste heat, thereby improving energy utilization efficiency.

[0089] When a user needs heating, the first and second valve ports of the fourth multi-channel valve SV4 can be opened, and the third valve port of the fourth multi-channel valve SV4 can be closed, so that the heating module 60 is connected to the first water flow path, which facilitates heating for the user.

[0090] Please see Figure 1In some embodiments, the dual-source heat pump system 100 further includes a photovoltaic module 70, which may have a first water inlet 701 and a second water inlet 702 that are interconnected. The first water inlet 701 may be connected to the second valve port of a third multi-channel valve SV3, and the second water inlet 702 may be connected to a fourth pipe port 304. The third multi-channel valve SV3 has three valve ports, and the third valve port of the third multi-channel valve SV3 may be connected to a third pipe port 303. The third multi-channel valve SV3 is used to control the opening and closing of the third pipe port 303 and the first water inlet 701.

[0091] Optionally, the photovoltaic module 70 can be a solar photovoltaic panel, which combines photovoltaic power generation and solar thermal collection functions. It can convert sunlight into electrical energy to meet the user's electricity needs, and at the same time, it can collect and utilize the heat energy generated by solar energy to meet the user's heating needs. In heating mode or hot water production, the photovoltaic module 70 can be connected to a second water flow path. The low-temperature water in the second water flow path can flow into the photovoltaic module 70 and absorb heat, thereby heating the low-temperature water in the second water flow path to further meet the user's heating needs.

[0092] Specifically, taking the energy-consuming module 50 as an example of the heat storage module 52, in the heating mode, the first and second valve ports of the third multi-channel valve SV3 can be opened, so that the first water inlet 701 can be connected to the second outlet 502 through the channel between the first and second valve ports of the third multi-channel valve SV3. The second and third valve ports of the first multi-channel valve SV1 can also be opened, so that the heat storage module 52, the photovoltaic module 70 and the second water flow path can be connected in sequence to form a loop. Thus, the low-temperature water flowing out of the second water flow path can be heated by the photovoltaic module 70 and transfer heat to the heat storage module 52, so that the heat storage module 52 can supply hot water to the user. Therefore, by setting the photovoltaic module 70 in the second water flow path, the second water flow path can also supply heat to the heat storage module 52 in the heating mode.

[0093] When the photovoltaic module 70 is not needed in the heating mode, the photovoltaic module 70 can be turned off, the second and third valve ports of the third multi-channel valve SV3 can be opened, and the first valve port of the third multi-channel valve SV3 can be closed, so that the heat storage module 52 is disconnected from the second water flow, and the two ends of the second water flow path can be connected to form a loop, preventing the low temperature water in the second water flow path from flowing into the heat storage module 52.

[0094] Please see Figure 1In some embodiments, the dual-source heat pump system 100 includes a fifth multi-channel valve SV5, which can have three valve ports. The first valve port of the fifth multi-channel valve SV5 is connected to the fourth pipe port 304, the second valve port of the fifth multi-channel valve SV5 is connected to the second water port 702, and the third valve port of the fifth multi-channel valve SV5 is connected to the second valve port of the third multi-channel valve SV3. The fifth multi-channel valve SV5 is used to control the on / off state of the fourth pipe port 304 and the second water port 702, as well as to control the on / off state of the fourth pipe port 304 and the second valve port of the third multi-channel valve SV3.

[0095] Optionally, when the dual-source heat pump system 100 is in heating mode and the high-temperature water in the first water flow path is used for heating but there is not enough heat for hot water production, the first and second valve ports of the fifth multi-channel valve SV5 can be opened, and the third valve port of the fifth multi-channel valve SV5 can be closed. This allows the second water inlet 702 to be connected to the fourth pipe port 304 through the channel between the first and second valve ports of the fifth multi-channel valve SV5. As a result, the photovoltaic module 70 can be connected to the second water flow path, and the low-temperature water in the second water flow path can flow into the photovoltaic module 70 and absorb heat, so that the low-temperature water in the second water flow path can be heated into high-temperature water. The high-temperature water in the second water flow path can transfer heat to the heat storage module 52, so that the heat storage module 52 can supply hot water to the user.

[0096] When the dual-source heat pump system 100 is in heating mode and the user has cooling needs, the first and third valve ports of the fifth multi-channel valve SV5 can be opened, and the second valve port of the fifth multi-channel valve SV5 can be closed, so that the second water port 702 is disconnected from the fourth pipe port 304, thereby disconnecting the photovoltaic module 70 from the second water flow path. This can prevent the low-temperature water in the second water flow path from flowing into the photovoltaic module 70, so that the second water flow path can meet the user's cooling needs.

[0097] When the dual-source heat pump system 100 is in cooling mode and the user has a heating demand, the first and second valve ports of the fifth multi-channel valve SV5 can be opened, and the third valve port of the fifth multi-channel valve SV5 can be closed. This allows the second water inlet 702 to be connected to the fourth pipe port 304 through the channel between the first and second valve ports of the fifth multi-channel valve SV5. As a result, the photovoltaic module 70 can be connected to the second water flow path, enabling the photovoltaic module 70 to provide heat to the second water flow path. Thus, in cooling mode, the second water flow path can meet the user's heating demand.

[0098] Please see Figure 1In some embodiments, the dual-source heat pump system 100 includes a boiler assembly having a first port and a second port that are interconnected. The first port can be connected to the second port of a third multi-channel valve SV3, and the second port can be connected to a fourth port 304. The third multi-channel valve SV3 has three ports, and the third port of the third multi-channel valve SV3 is connected to the third port 303. The third multi-channel valve SV3 is also used to control the connection and disconnection between the third port 303 and the first port.

[0099] Optionally, a boiler assembly is a thermal energy device that can be used to generate steam or hot water. In heating mode or when producing hot water, the boiler assembly can serve as a supplementary heat source to provide heat to users when the heating supply is insufficient.

[0100] Specifically, taking the energy consumption module 50 as an example of the heat storage module 52, in the heating mode, the first and second valve ports of the third multi-channel valve SV3 can be opened, so that the first port can be connected to the second flow port 502 through the channel between the first and second valve ports of the third multi-channel valve SV3. At the same time, the second and third valve ports of the first multi-channel valve SV1 can be opened, so that the heat storage module 52, the boiler assembly and the second water flow path can be connected in sequence to form a loop. Thus, the low temperature water flowing out of the second water flow path can be heated by the boiler assembly and transfer heat to the heat storage module 52, so that the heat storage module 52 can supply hot water to the user. Therefore, when the heating supply is insufficient in the heating mode, the boiler assembly can supply heat to the second water flow path to supplement the system and meet the user's heating needs.

[0101] Similarly, in cooling mode, when the user has a heating demand, the first and second valve ports of the third multi-channel valve SV3 can be opened, and the second and third valve ports of the first multi-channel valve SV1 can be opened, so that the heat storage module 52, the boiler assembly and the second water flow path can be connected in sequence to form a loop, and the boiler assembly can supply heat to the second water flow path and the heat storage module 52 to meet the user's heating demand in cooling mode.

[0102] When the boiler assembly is not needed in heating mode, the boiler assembly can be turned off, the second and third valve ports of the third multi-channel valve SV3 can be opened, and the first valve port of the third multi-channel valve SV3 can be closed, so that the heat storage module 52 is disconnected from the second water flow, and the two ends of the second water flow path can be connected to form a loop, preventing the low temperature water in the second water flow path from flowing into the heat storage module 52.

[0103] Please see Figure 1 In some embodiments, a water pump 80 can be provided in both the first water flow path and the second water flow path.

[0104] Optionally, the water pump 80 in the first water flow path is designated as the first water pump 80, and the water pump 80 in the second water flow path is designated as the second water pump 80. The first water pump 80 provides power to the first water flow path, and the second water pump 80 provides power to the second water flow path, enabling the first and second water flow paths to operate independently and stably.

[0105] In some embodiments, both the first heat exchanger 20 and the second heat exchanger 30 are plate heat exchangers.

[0106] Optionally, the plate heat exchanger includes multiple heat exchange plates, which are metal plates with a certain corrugated shape. The multiple heat exchange plates can be stacked together in sequence to form two independent flow paths. In the plate heat exchanger, heat is transferred from one flow path to the other through the thermal conduction of the plates, enabling heat exchange between the two flow paths. The plate heat exchanger has a relatively compact structure, occupies a small area, and has a relatively large heat transfer area, which can improve heat exchange efficiency.

[0107] Please see Figure 1 In some embodiments, the refrigerant circulation loop may also include a third heat exchanger 91, a gas-liquid separator 92, and a four-way valve 93.

[0108] Specifically, the third heat exchanger 91 can be connected to the second port 302, the gas-liquid separator 92 can be connected to the return gas end 102 of the compressor 10, the first valve port of the four-way valve 93 can be connected to the discharge end 101 of the compressor 10, the second valve port of the four-way valve 93 can be connected to the second port 202, the third valve port of the four-way valve 93 can be connected to the gas-liquid separator 92, and the fourth valve port of the four-way valve 93 can be connected to the third heat exchanger 91.

[0109] Optionally, in heating mode, the dual-source heat pump system 100 can control the first and second valve ports of the four-way valve 93 to be open, and control the third and fourth valve ports of the four-way valve 93 to be open, so that the refrigerant discharged from the exhaust end 101 of the compressor 10 can flow sequentially through the first heat exchanger 20, the throttling device 40, the second heat exchanger 30, the third heat exchanger 91 and the gas-liquid separator 92, and finally return to the compressor 10 from the return end 102 of the compressor 10 to complete a heating cycle.

[0110] In cooling mode, the dual-source heat pump system 100 can control the first and fourth ports of the four-way valve 93 to be open, as well as the second and third ports of the four-way valve 93 to be open. This allows the refrigerant discharged from the exhaust end 101 of the compressor 10 to flow sequentially through the third heat exchanger 91, the second heat exchanger 30, the throttling device 40, the first heat exchanger 20, and the gas-liquid separator 92, and finally return to the compressor 10 from the return end 102 of the compressor 10, completing a refrigerant cycle. This allows for easy switching between heating and cooling modes.

[0111] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0112] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dual-source heat pump system, characterized in that, include: The compressor has an exhaust end and a return end; The first heat exchanger includes a first refrigerant flow path and a first water flow path in heat exchange contact. The first refrigerant flow path has a first port and a second port that are mutually connected. The second port is selectively connected to one of the exhaust end and the return end. The second heat exchanger includes a second refrigerant flow path and a second water flow path in heat exchange contact. The second refrigerant flow path has a first port and a second port that are mutually connected. The second port is selectively connected to the other of the exhaust end and the return end. A throttling device is provided, which connects the first port and the first pipe opening, so that the compressor, the first heat exchanger, the throttling device and the second heat exchanger are sequentially connected to form a refrigerant circulation loop; The energy-consuming module is selectively connected to one of the first water flow path and the second water flow path to form an energy-consuming loop.

2. The dual-source heat pump system according to claim 1, characterized in that, The first water flow path has a third port and a fourth port that are interconnected, the second water flow path has a third pipe opening and a fourth pipe opening that are interconnected, the energy module has a first flow opening and a second flow opening that are interconnected, the first flow opening is selectively connected to one of the third port and the third pipe opening, and the second flow opening is selectively connected to one of the fourth port and the fourth pipe opening. Specifically, when the first flow port is connected to the third port, the second flow port is connected to the fourth port; when the first flow port is connected to the third port, the second flow port is connected to the fourth port.

3. The dual-source heat pump system according to claim 2, characterized in that, The energy-consuming module includes a heat load component, which has a first flow port and a second flow port; When the second port is connected to the exhaust end and the second pipe port is connected to the return end, the first flow port is connected to the third pipe port and the second flow port is connected to the fourth pipe port, so that the second water flow path cools the heat load component; When the second port is connected to the return gas end and the second pipe port is connected to the exhaust end, the first flow port is connected to the third port and the second flow port is connected to the fourth port, so that the first water flow path cools the heat load component.

4. The dual-source heat pump system according to claim 2, characterized in that, The energy-consuming module includes a heat storage module, which has a first inlet and a second inlet; When the second port is connected to the exhaust end and the second pipe port is connected to the return gas end, the first flow port is connected to the third port and the second flow port is connected to the fourth port, so that the first water flow path can store heat for the heat storage module. When the second port is connected to the return gas end and the second pipe port is connected to the exhaust end, the first flow port is connected to the third pipe port and the second flow port is connected to the fourth pipe port, so that the second water flow path can store heat for the heat storage module.

5. The dual-source heat pump system according to claim 2, characterized in that, The dual-source heat pump system includes: A first multi-channel valve has at least three valve ports. The first valve port of the first multi-channel valve is connected to the third port, the second valve port of the first multi-channel valve is connected to the third pipe port, and the third valve port of the first multi-channel valve is connected to the first flow port. The first multi-channel valve is used to control the connection and disconnection between the first flow port and the third port, and to control the connection and disconnection between the first flow port and the third pipe port.

6. The dual-source heat pump system according to claim 2 or 5, characterized in that, The dual-source heat pump system includes: The second multi-channel valve has at least two valve ports, the first valve port of the second multi-channel valve is connected to the second flow port, and the second valve port of the second multi-channel valve is connected to the fourth port. The third multi-channel valve has at least two valve ports, the first valve port of the third multi-channel valve is connected to the second flow port, and the second valve port of the third multi-channel valve is connected to the fourth pipe port; The second multi-channel valve is used to control the connection between the second flow port and the fourth port, and the third multi-channel valve is used to control the connection between the second flow port and the fourth port.

7. The dual-source heat pump system according to claim 6, characterized in that, The dual-source heat pump system includes: The heating module has a first interface and a second interface that are interconnected. The first interface is connected to the second valve port of the second multi-channel valve, and the second interface is connected to the fourth port. The second multi-channel valve has three valve ports, and the third valve port of the second multi-channel valve is connected to the third port. The second multi-channel valve is used to control the connection and disconnection between the third port and the first interface.

8. The dual-source heat pump system according to claim 7, characterized in that, The dual-source heat pump system includes: The fourth multi-channel valve has three valve ports. The first valve port of the fourth multi-channel valve is connected to the fourth port, the second valve port of the fourth multi-channel valve is connected to the second port, and the third valve port of the fourth multi-channel valve is connected to the second valve port of the second multi-channel valve. The fourth multi-channel valve is used to control the connection and disconnection between the fourth port and the second interface, and to control the connection and disconnection between the fourth port and the second valve port of the second multi-channel valve.

9. The dual-source heat pump system according to claim 6, characterized in that, The dual-source heat pump system includes: A photovoltaic module, wherein the photovoltaic module has a first water inlet and a second water inlet that are interconnected, the first water inlet being connected to the second valve port of the third multi-channel valve, and the second water inlet being connected to the fourth pipe port; The third multi-channel valve has three valve ports. The third valve port of the third multi-channel valve is connected to the third pipe port. The third multi-channel valve is used to control the connection and disconnection between the third pipe port and the first water port.

10. The dual-source heat pump system according to claim 9, characterized in that, The dual-source heat pump system includes: The fifth multi-channel valve has three valve ports. The first valve port of the fifth multi-channel valve is connected to the fourth pipe port, the second valve port of the fifth multi-channel valve is connected to the second water port, and the third valve port of the fifth multi-channel valve is connected to the second valve port of the third multi-channel valve. The fifth multi-channel valve is used to control the connection and disconnection between the fourth pipe port and the second water port, and to control the connection and disconnection between the fourth pipe port and the second valve port of the third multi-channel valve.

11. The dual-source heat pump system according to claim 6, characterized in that, The dual-source heat pump system includes: A boiler assembly having a first port and a second port that are interconnected, the first port being connected to the second valve port of the third multi-channel valve, and the second port being connected to the fourth pipe port; The third multi-channel valve has three valve ports. The third valve port of the third multi-channel valve is connected to the third pipe port. The third multi-channel valve is used to control the connection and disconnection between the third pipe port and the first port.

12. The dual-source heat pump system according to claim 1, characterized in that, Both the first water flow path and the second water flow path are equipped with water pumps.

13. The dual-source heat pump system according to claim 1, characterized in that, Both the first heat exchanger and the second heat exchanger are plate heat exchangers.

14. The dual-source heat pump system according to claim 1, characterized in that, The refrigerant circulation loop also includes: A third heat exchanger is connected to the second pipe port; A gas-liquid separator, wherein the gas-liquid separator is connected to the return gas end; A four-way valve, wherein the first valve port of the four-way valve is connected to the exhaust end, the second valve port of the four-way valve is connected to the second port, the third valve port of the four-way valve is connected to the gas-liquid separator, and the fourth valve port of the four-way valve is connected to the third heat exchanger.

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