Multipurpose heat pump structure

Abstract

The invention discloses a multipurpose heat pump structure which comprises a compressor. The condenser is provided with a first communication port and a second communication port; the evaporator is provided with a third communication port and a fourth communication port; the pipeline assembly comprises a first pipeline, a second pipeline, a third pipeline and a heat exchange pipe, one end of the first pipeline communicates with the compressor, the other end of the first pipeline communicates with a first branch pipe and a second branch pipe, the first branch pipe communicates with the first communicating opening, the second communicating opening communicates with the first end of the heat exchange pipe through the second pipeline, and the third pipeline communicates with the second end of the heat exchange pipe through the third pipeline. The second end of the heat exchange pipe communicates with one end of a third pipeline, the other end of the third pipeline communicates with a third branch pipe and a fourth branch pipe, the third branch pipe communicates with the compressor, and the fourth branch pipe communicates with a fourth communicating opening; and a heat exchange water tank. Water in the heat exchange water tank is heated by waste heat of a refrigerant of the condenser after heat exchange, so that waste heat utilization is realized.

Description

Technical Field

[0001] The invention relates to the technical field of heat pumps, and in particular to a multi-purpose heat pump structure. Background Art

[0002] Existing heat pumps generally include pipes that connect the heat pump with water tanks, water pumps, evaporators, condensers, compressors and other components as required. The evaporator is installed outdoors and the compressor is installed indoors. The outside air is inhaled through the fan, and the heat in the air is absorbed by the refrigerant in the evaporator, causing the refrigerant to change from liquid to gas and the temperature to rise. Even in a low temperature environment, the air still contains a certain amount of heat that can be absorbed and utilized.

[0003] When the heat pump is working, the gaseous refrigerant is compressed by the compressor, and the compressor does work on the refrigerant, causing the pressure and temperature of the refrigerant to further increase. At this time, the work done by the compressor is converted into the internal energy of the refrigerant gas, turning it into a high-temperature and high-pressure gas. The high-temperature and high-pressure gas flows into the condenser, exchanges heat with the water around the condenser or the indoor air, and releases a large amount of heat, causing the water temperature to rise or the indoor air to warm up. In this process, the refrigerant cools and condenses into a liquid. The liquid refrigerant passes through throttling devices such as expansion valves, and the pressure and temperature of the liquid refrigerant decrease, becoming a low-temperature and low-pressure liquid refrigerant in preparation for the next cycle. The low-temperature and low-pressure refrigerant liquid re-enters the evaporator and absorbs the heat in the air again. This cycle repeats, continuously moving the heat in the air into the room, and achieving continuous heating.

[0004] During use, the refrigerant in the prior art will directly flow back to the evaporator after entering the condenser and exchanging heat with the indoor air to achieve circulation. However, the residual heat after the refrigerant exchanges heat with the indoor air is not effectively utilized, resulting in energy waste. Summary of the invention

[0005] In order to overcome at least one of the defects of the prior art described above, the present invention provides a multi-purpose heat pump structure, which can use the waste heat of the refrigerant in the condenser after heat exchange to heat the water in the water exchange water tank to realize waste heat utilization.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A multi-purpose heat pump structure, comprising:

[0008] compressor;

[0009] A condenser, the condenser is used for exchanging heat with indoor air, and the condenser is provided with a first conduction port and a second conduction port;

[0010] An evaporator, the evaporator is used for exchanging heat with outdoor air, and the evaporator is provided with a third conduction port and a fourth conduction port;

[0011] A pipeline assembly, the pipeline assembly includes a first pipeline, a second pipeline, a third pipeline and a heat exchange pipe, one end of the first pipeline is connected to the compressor, the other end of the first pipeline is connected to a first branch pipe and a second branch pipe, the first branch pipe is connected to the first conduction port, the second conduction port is connected to the first end of the heat exchange pipe through the second pipeline, the second end of the heat exchange pipe is connected to one end of the third pipeline, the other end of the third pipeline is connected to a third branch pipe and a fourth branch pipe, the third branch pipe is connected to the compressor, the fourth branch pipe is connected to the fourth conduction port; the second branch pipe is connected to the evaporator; the first end of the heat exchange pipe is connected to the first branch pipe;

[0012] A heat exchange water tank is used for exchanging heat with the heat exchange pipe; the heat exchange water tank is provided with a hot water outlet and a cold water inlet; the hot water outlet is connected to a hot water device.

[0013] Furthermore, the multi-purpose heat pump structure also includes a solar heat exchanger, a water inlet end of the solar heat exchanger is connected to the water exchange water tank, and a water outlet end of the solar heat exchanger is connected to the water exchange water tank.

[0014] Furthermore, a temperature sensor is provided in the water exchange tank, and the temperature sensor is used to detect the water temperature in the water exchange tank.

[0015] Furthermore, the heat exchange tube is arranged inside the water exchange water tank.

[0016] Furthermore, the heat exchange tube coil is arranged inside the water exchange water tank.

[0017] Furthermore, the evaporator is provided with a first temperature detector and a second temperature detector, the first temperature detector is used to detect the coil temperature of the evaporator, and the second temperature detector is used to detect the defrost temperature of the evaporator.

[0018] Furthermore, the hot water device includes a water heater.

[0019] Furthermore, it also includes an oil-liquid separation component, which also includes an oil separator and a fourth pipeline, the oil separator is provided with a first inlet, a first outlet and a second outlet, the first inlet is arranged at the top of the oil separator, the first outlet is arranged at the side of the oil separator, and the second outlet is arranged at the bottom of the oil separator; one end of the fourth pipeline is connected to the outlet of the compressor, the other end of the fourth pipeline is connected to the first inlet, the first pipeline is connected to the first outlet, the second outlet is connected to one end of the fourth pipeline, and the other end of the fourth pipeline is connected to the oil return port of the compressor.

[0020] Furthermore, the condenser is provided in plurality, and the plurality of condensers are all connected to the first branch pipe.

[0021] Furthermore, the condenser includes a plurality of microchannel fins.

[0022] In summary, the present invention has the following technical effects:

[0023] The hot water in the water exchange tank is heated by the waste heat of the refrigerant in the heating process, and the heat pump is defrosted by this waste heat, which has a higher energy utilization rate. In addition, since the water in the water exchange tank can absorb the waste heat of the refrigerant in the heat exchange tube for heating, the heated hot water can be guided to the hot water equipment such as water heaters and water machines through the hot water outlet, which can achieve multiple uses and higher energy utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a partial structural schematic diagram of the indoor part of the present invention;

[0026] Figure 3 It is a partial structural schematic diagram of the outdoor part of the present invention.

[0027] Among them, the meanings of the figure numbers are as follows: 10, compressor; 20, condenser; 30, evaporator; 31, first temperature detector; 32, second temperature detector; 41, first pipeline; 411, second branch pipe; 412, first branch pipe; 42, second pipeline; 43, heat exchange tube; 44, third pipeline; 441, third branch pipe; 442, fourth branch pipe; 50, heat exchange water tank; 60, hot water equipment. DETAILED DESCRIPTION

[0028] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] See also Figure 1 , Figure 2 as well as Figure 3 The present invention discloses a multi-purpose heat pump structure, including a compressor 10, a condenser 20, an evaporator 30 and a pipeline assembly. The condenser 20 can exchange heat with indoor air, and the condenser 20 is provided with a first conduction port and a second conduction port; the evaporator 30 can exchange heat with outdoor air, and the evaporator 30 is provided with a third conduction port and a fourth conduction port.

[0032] The specific pipeline assembly includes a first pipeline 41, a second pipeline 42, a third pipeline 44 and a heat exchange pipe 43. One end of the first pipeline 41 is connected to the compressor 10, and the other end of the first pipeline 41 is connected to a first branch pipe 412 and a second branch pipe 411. The first branch pipe 412 is connected to the first conduction port, and the second conduction port is connected to the first end of the heat exchange pipe 43 through the second pipeline 42. The second end of the heat exchange pipe 43 is connected to one end of the third pipeline 44, and the other end of the third pipeline 44 is connected to a third branch pipe 441 and a fourth branch pipe 442. The third branch pipe 441 is connected to the compressor 10, and the fourth branch pipe 442 is connected to the fourth conduction port. The second branch pipe 411 is connected to the evaporator 30.

[0033] The above-mentioned water exchange tank 50 exchanges heat with the heat exchange tube 43; the water exchange tank 50 is provided with a hot water outlet and a cold water inlet; the hot water outlet is connected to the hot water device 60, and the cold water inlet can introduce water into the water exchange tank 50. After the cold water exchanges heat with the heat exchange tube 43, the hot water in the water exchange tank 50 is discharged through the hot water outlet.

[0034] Based on the above structure, when the multi-purpose heat pump structure of the present invention is used,

[0035] During normal heating operation, the compressor 10 works, the gaseous refrigerant is compressed by the compressor 10, and the compressor 10 does work on the refrigerant, so that the pressure and temperature of the refrigerant are further increased. At this time, the work done by the compressor 10 is converted into the internal energy of the refrigerant gas, turning it into a high-temperature and high-pressure gas. The high-temperature and high-pressure gas flows into the first pipeline 41 through the outlet of the compressor 10. Through the control valve structure of the heat pump, the refrigerant in the first pipeline 41 can enter the first conduction port of the condenser 20 through the first branch pipe 412 and flow into the condenser 20. In this way, the condenser 20 exchanges heat with the indoor air, releasing a large amount of heat, so that the water temperature rises or the indoor air warms up, and the refrigerant cools and condenses into liquid in the process.

[0036] Since the refrigerant still has a certain amount of residual heat after releasing a large amount of heat through heat exchange with the condenser 20 and the indoor air, the refrigerant with residual heat can enter the second pipe 42 through the second conducting port, and then enter the first end of the heat exchange tube 43 through the second pipe 42. The refrigerant with residual heat in the heat exchange tube 43 can exchange heat with the water in the water exchange water tank 50, and use the residual heat to heat the water in the water storage tank.

[0037] Then the refrigerant in the heat exchange tube 43 is guided to the third pipe 44 through the second end of the heat exchange tube 43, and is guided to the third conducting port through the third pipe 44 to be introduced into the evaporator 30. After entering the evaporator 30, the low-temperature and low-pressure refrigerant absorbs heat from the air again, and then returns to the compressor 10 through the second branch pipe 411. This cycle is repeated, continuously transporting heat from the air to the room, thereby achieving continuous heating.

[0038] During the heating process, the residual heat in the refrigerant in the heat exchange tube 43 can continuously exchange heat with the water in the heat exchange water tank 50, so that the water temperature in the heat exchange water tank 50 can continuously utilize the residual heat and maintain a certain water temperature. It should be noted that in this embodiment, the water in the heat exchange water tank 50 can be heated to a water temperature of about 30° to 40° after heat exchange with the heat exchange tube 43.

[0039] When the outdoor ambient temperature is low, the outer layer of the evaporator 30 located outdoors is prone to frost in the low temperature environment. As the frost layer continues to thicken, the thermal resistance of the heat exchanger will increase, reducing its heat exchange efficiency, resulting in a decrease in the heating capacity of the heat pump and a worse indoor heating effect. At this time, the heat pump can first start the defrosting action. When defrosting, the control valve structure of the heat pump can be used. At this time, the refrigerant of the compressor 10 can be exported to the second end of the heat exchange tube 43 through the third branch pipe 441. After entering the heat exchange tube 43, the refrigerant can absorb the waste heat of the water exchange tank 50 and then be guided to the compressor 10 through the first end of the heat exchange tube 43 and the first branch pipe 412, and then guided to the evaporator 30 through the second branch pipe 411 of the first pipe 41 of the compressor 10. At this time, the refrigerant in the evaporator 30 absorbs the waste heat in the water exchange tank 50, and thus can release heat to defrost the surface of the evaporator 30. In this way, when defrosting, the refrigerant exported by the compressor 10 does not need to enter the condenser 20 to absorb the waste heat in the room, but is directly introduced into the heat exchange tube 43 through the third pipe 44 to absorb the waste heat stored in the water exchange tank 50. In this way, the flow path of the refrigerant is reduced during the defrosting process, so that the defrosting flow path is short and the defrosting speed is fast.

[0040] That is, the hot water in the water exchange tank 50 is heated by the waste heat of the refrigerant in the heating process, and the heat pump defrosts with this waste heat, so that the energy utilization rate is higher. In addition, since the water in the water exchange tank 50 can absorb the waste heat of the refrigerant in the heat exchange tube 43 for heating, the heated hot water can be guided to the hot water device 60, such as a water heater, such as a water machine, through the hot water outlet, so that multiple uses can be achieved and the energy utilization rate is higher. The hot water device 60 in this embodiment can be a water heater, and the hot water outlet can be directly connected to the water heater through a pipeline. The hot water derived from the water exchange tank 50 can be reheated by the heating structure of the water heater, or the hot water in the water exchange tank 50 can be directly used to save energy.

[0041] Of course, in this embodiment, the compressor 10, the evaporator 30 and the condenser 20 are all existing technologies, and their specific structures and working principles do not belong to the technical content to be protected by this application, and will not be described in detail here.

[0042] Furthermore, the multi-purpose heat pump structure also includes a solar heat exchanger, the water inlet end of the solar heat exchanger is connected to the water exchange tank 50, and the water outlet end of the solar heat exchanger is connected to the water exchange tank 50. In this way, if the heat of the waste heat of the refrigerant flowing in the heat exchange tube 43 is not enough to heat the water in the water exchange tank 50 to a sufficiently high temperature, the present application can also absorb solar heat through the solar heat exchanger to heat the water in the water exchange tank 50. In this way, the water in the water exchange tank 50 can absorb both solar heat and waste heat of the refrigerant, so that the temperature of the hot water in the water exchange tank 50 is higher and can be directly used in the hot water equipment 60 without the need for additional heating.

[0043] Furthermore, when the defrosting action is performed, the refrigerant passing through the heat exchange tube 43 can absorb more heat, so that the defrosting action can be completed after fewer cycles, thereby reducing the energy consumption of the heat pump defrosting action.

[0044] If the heat pump is not performing heating, the compressor 10 is not working at this time, that is, the residual heat of the refrigerant in the heat exchange tube 43 is not enough to heat the water in the water exchange tank 50. At this time, the solar heat exchanger can be used alone to heat the water in the water exchange tank 50. In this way, hot water can be used without starting the compressor 10, the evaporator 30 and the condenser 20, thereby reducing energy consumption. Moreover, when the outdoor temperature is low, it is not necessary to perform the heating action of the heat pump first. After the water in the water exchange tank 50 is heated by the solar heat exchanger, the refrigerant in the heat exchange tube 43 directly absorbs the heat of the hot water in the water exchange tank 50 after heat exchange with the solar heat exchanger, and starts to perform the defrosting action. In this way, the defrosting action can be performed alone without heating, and the defrosting can also be performed when the refrigerant flow path is short.

[0045] Furthermore, a temperature sensor may be provided in the heat exchange water tank 50, and the temperature sensor may detect the water temperature in the heat exchange water tank 50. In this way, whether to start the solar water heater may be controlled according to the water temperature detected by the temperature sensor, or whether the defrost temperature is appropriate may be determined according to the water temperature of the heat exchange water tank 50, or whether the hot water device 60 needs to be heated again may be determined according to the water temperature of the heat exchange water tank 50.

[0046] Of course, since the heat pump in the prior art generally includes a controller for controlling the operation of the heat pump, the water temperature detected by the temperature sensor in the water exchange water tank 50 can be sent to the controller for control by the controller.

[0047] More specifically, the heat exchange tube 43 can be arranged inside the heat exchange water tank 50, that is, the heat exchange tube 43 is arranged inside the heat exchange water tank 50, so that the water in the heat exchange water tank 50 can cover the outside of the heat exchange tube 43 and fully contact and exchange heat with the refrigerant in the heat exchange tube 43, so that the heat exchange efficiency is higher and the waste heat of the refrigerant can be fully absorbed and utilized.

[0048] Furthermore, the heat exchange tube 43 is coiled inside the water exchange tank 50, and the coiled heat exchange tube 43 can increase more heat exchange area within a limited space. Compared with a straight tube, the coiling method increases the length of the heat exchange tube 43, thereby providing a larger surface area for heat transfer, thereby improving the overall heat exchange capacity of the heat exchanger. In addition, when the refrigerant flows in the coiled heat exchange tube 43, it needs to constantly change the flow direction, which will increase the turbulence of the refrigerant. The fluid in the turbulent state can better exchange heat with the wall of the heat exchange tube 43, improve the convective heat transfer coefficient, and then enhance the heat exchange effect, so that the waste heat can be more absorbed by the water in the water exchange tank 50, improving the heat storage efficiency.

[0049] Furthermore, the evaporator 30 is provided with a first temperature detector 31 and a second temperature detector 32, wherein the first temperature detector 31 is used to detect the coil temperature of the evaporator 30, and the second temperature detector 32 is used to detect the defrosting temperature of the evaporator 30. In this way, the controller of the heat pump can control the normal operation of the heat pump according to the temperature of the refrigerant detected by the first temperature detector 31. And according to the temperature detected by the second temperature detector 32, it can be determined whether to perform the defrosting action.

[0050] Furthermore, it also includes an oil-liquid separation component, which also includes an oil separator and a fourth pipeline. The oil separator is provided with a first inlet, a first outlet and a second outlet. The first inlet is arranged at the top of the oil separator, the first outlet is arranged at the side of the oil separator, and the second outlet is arranged at the bottom of the oil separator; one end of the fourth pipeline is connected to the outlet of the compressor 10, the other end of the fourth pipeline is connected to the first inlet, the first pipeline 41 is connected to the first outlet, the second outlet is connected to one end of the fourth pipeline, and the other end of the fourth pipeline is connected to the oil return port of the compressor 10.

[0051] During the operation of the compressor 10, in order to improve the operating performance of the compressor 10, generally there is lubricating oil in the pipeline of the compressor 10, so that the lubricating oil flows with the refrigerant during the operation of the compressor 10 to reduce the wear caused by friction during high-speed operation. During the operation of the compressor 10, the refrigerant will be compressed into high-temperature and high-pressure gas and discharged. In this process, the refrigerant oil will be fully mixed with the refrigerant and will be discharged from the compressor 10 together with the refrigerant and enter the circulation pipeline of the refrigeration system.

[0052] In this embodiment, the first inlet of the oil separator is connected to the outlet of the compressor 10. The refrigerant and the lubricating oil are mixed in the compressor 10 and then enter the oil separator. The refrigerant is mixed with the lubricating oil and enters the first pipe 41 through the first outlet, and then enters the various circulation components of the heat pump through the first branch pipe 412 or the second branch pipe 411 of the first pipe 41 for circulation and lubrication.

[0053] The refrigerant discharged from the compressor 10 is introduced into the condenser 20 through the first branch pipe 412 of the first pipe 41. If the indoor space is large, it is necessary to lay a longer pipe to guide the refrigerant discharged from the compressor 10 to the condenser 20 for heat exchange, and then return to the heat exchange pipe 43, the evaporator 30 and other structures through a longer return path, and then return to the compressor 10. In this way, the oil return path of the compressor 10 will be longer.

[0054] Therefore, in the present embodiment, the refrigerant entering the oil separator can also be in the oil separator, and the lubricating oil in the oil-gas mixture discharged from the compressor 10 can be separated, and the separated lubricating oil can be directly returned to the compressor 10 through the second outlet through the fourth pipe, thereby realizing the recovery of the lubricating oil, and can effectively separate part of the lubricating oil in the refrigerant, improve the oil return efficiency, reduce the amount of lubricating oil entering the circulation pipeline of the heat pump system, and extend the safe operation time of the compressor 10 in the non-return oil state, which is particularly suitable for heat pump structures with longer pipelines.

[0055] Furthermore, a plurality of condensers 20 are provided, and the plurality of condensers 20 are all connected to the first branch pipe 412. Thus, after the refrigerant is discharged from the first branch pipe 412, it can be dispersedly guided by the plurality of condensers 20 to increase the heat exchange area, thereby improving the heating efficiency.

[0056] Furthermore, the condenser 20 includes a plurality of microchannel heat sinks in the prior art. The microchannel heat sink works based on the principle of a microchannel heat exchanger. Tiny channels are set in the heat sink to allow the refrigerant to flow in the channels. Since the microchannels have a large specific surface area, the heat exchange area between the cooling medium and the heat sink is greatly increased, thereby effectively improving the heat exchange efficiency and achieving a faster heating speed.

[0057] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A multi-purpose heat pump structure, characterized in that ,include, compressor; A condenser, the condenser is used for exchanging heat with indoor air, and the condenser is provided with a first conduction port and a second conduction port; An evaporator, the evaporator is used for exchanging heat with outdoor air, and the evaporator is provided with a third conduction port and a fourth conduction port; A pipeline assembly, the pipeline assembly includes a first pipeline, a second pipeline, a third pipeline and a heat exchange pipe, one end of the first pipeline is connected to the compressor, the other end of the first pipeline is connected to a first branch pipe and a second branch pipe, the first branch pipe is connected to the first conduction port, the second conduction port is connected to the first end of the heat exchange pipe through the second pipeline, the second end of the heat exchange pipe is connected to one end of the third pipeline, the other end of the third pipeline is connected to a third branch pipe and a fourth branch pipe, the third branch pipe is connected to the compressor, the fourth branch pipe is connected to the fourth conduction port; the second branch pipe is connected to the evaporator; the first end of the heat exchange pipe is connected to the first branch pipe; A heat exchange water tank is used for exchanging heat with the heat exchange pipe; the heat exchange water tank is provided with a hot water outlet and a cold water inlet; the hot water outlet is connected to a hot water device.

2. The multi-purpose heat pump structure according to claim 1, characterized in that: The multi-purpose heat pump structure also includes a solar heat exchanger, a water inlet end of the solar heat exchanger is connected to the water exchange water tank, and a water outlet end of the solar heat exchanger is connected to the water exchange water tank.

3. The multi-purpose heat pump structure according to claim 2, characterized in that: A temperature sensor is provided in the water exchange tank, and the temperature sensor is used to detect the water temperature in the water exchange tank.

4. The multi-purpose heat pump structure according to claim 1, characterized in that: The heat exchange tube is arranged inside the heat exchange water tank.

5. The multi-purpose heat pump structure according to claim 4, characterized in that: The heat exchange tube coil is arranged inside the heat exchange water tank.

6. The multi-purpose heat pump structure according to any one of claims 1 to 5, characterized in that: The evaporator is provided with a first temperature detector and a second temperature detector, wherein the first temperature detector is used to detect the coil temperature of the evaporator, and the second temperature detector is used to detect the defrosting temperature of the evaporator.

7. The multi-purpose heat pump structure according to any one of claims 1 to 5, characterized in that: The hot water device comprises a water heater.

8. The multi-purpose heat pump structure according to any one of claims 1 to 5, characterized in that: It also includes an oil-liquid separation component, which includes an oil separator and a fourth pipeline. The oil separator is provided with a first inlet, a first outlet and a second outlet. The first inlet is arranged at the top of the oil separator, the first outlet is arranged at the side of the oil separator, and the second outlet is arranged at the bottom of the oil separator; one end of the fourth pipeline is connected to the outlet of the compressor, the other end of the fourth pipeline is connected to the first inlet, the first pipeline is connected to the first outlet, the second outlet is connected to one end of the fourth pipeline, and the other end of the fourth pipeline is connected to the oil return port of the compressor.

9. The multi-purpose heat pump structure according to any one of claims 1 to 5, characterized in that: There are multiple condensers, and all of the multiple condensers are connected to the first branch pipe.

10. The multi-purpose heat pump structure according to claim 9, characterized in that: The condenser includes a plurality of microchannel fins.

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