Heat pump unit

Abstract

The utility model discloses a heat pump unit which comprises a heat pump body, an evaporator and a heat exchange assembly, and a compressor is arranged on a heat pump base. The air inlet end of the evaporator communicates with the exhaust end of the compressor. The heat exchange assembly is arranged at one end of the heat pump base and comprises a first heat exchanger used for releasing heat and a second heat exchanger used for absorbing heat, the inlet end of the first heat exchanger communicates with the exhaust end of the compressor, the outlet end of the first heat exchanger communicates with the suction end of the compressor, and an expansion valve is arranged between the first heat exchanger and the compressor. The inlet end of the second heat exchanger communicates with the liquid outlet end of the evaporator. The outlet end of the second heat exchanger communicates with the inlet end of the first heat exchanger. When cold water is introduced into the second heat exchanger, the second heat exchanger absorbs heat of the cold water and transfers the heat to the first heat exchanger. Therefore, the first heat exchanger outputs hot water, and the second heat exchanger outputs cold water, so that the requirements of a swimming pool place provided with a cold area and a hot water area are met, the energy loss is reduced, and meanwhile, the use cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a heat pump unit. Background Art

[0002] Heat pump technology is an energy technology that has attracted much attention worldwide in recent years. The heat pump swimming pool machine developed based on this heat pump technology can transfer energy from low-temperature heat sources such as air or water to high-temperature heat sources, maintaining the water temperature in the swimming pool at a suitable level. It is suitable for homes, villas, hotels, hot springs and other places where swimming pools need hot water.

[0003] However, it was found during use that hotels or swimming pools have multiple swimming areas in the summer for users to choose from, such as cold areas and hot water areas, and the existing heat pump units transfer heat from the air to the water or dissipate heat from the water to output hot water or cold water, but can only achieve one, either hot water or cold water. Therefore, for swimming areas with multiple swimming areas such as cold areas and hot water areas, multiple heat pump units need to be added to maintain the water temperature, resulting in high cost of use and, secondly, increased energy loss. Utility Model Content

[0004] In order to overcome the defects of the above-mentioned prior art, the utility model provides a heat pump unit, which is provided with a second heat exchanger, and cold water is passed into the second heat exchanger. The medium flowing through the second heat exchanger recovers the heat in the cold water and transfers it to the first heat exchanger, so that the first heat exchanger outputs hot water and the second heat exchanger outputs cold water, thereby meeting the needs of swimming pool venues with cold areas and hot water areas, thereby reducing energy loss and saving usage costs.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A heat pump unit, comprising:

[0007] A heat pump body, comprising a heat pump base, on which a compressor is arranged;

[0008] An evaporator is arranged on one side of the heat pump base, and an air inlet end of the evaporator is communicated with an air outlet end of the compressor;

[0009] A heat exchange assembly is arranged at one end of the heat pump base, the heat exchange assembly includes a first heat exchanger for releasing heat and a second heat exchanger for absorbing heat, the inlet end of the first heat exchanger is connected to the exhaust end of the compressor, the outlet end of the first heat exchanger is connected to the suction end of the compressor, and an expansion valve is arranged between the two;

[0010] The inlet end of the second heat exchanger is connected to the liquid outlet end of the evaporator, and the outlet end of the second heat exchanger is connected to the inlet end of the first heat exchanger;

[0011] When cold water flows into the second heat exchanger, the second heat exchanger absorbs the heat of the cold water and transfers it to the first heat exchanger.

[0012] Furthermore, it also includes a liquid storage tank, which is arranged between the evaporator and the second heat exchanger, the liquid outlet end of the evaporator and the inlet end of the second heat exchanger are connected to the liquid inlet of the liquid storage tank, and a first one-way valve is provided between the liquid outlet end of the evaporator and the liquid inlet of the liquid storage tank, and a second one-way valve is provided between the inlet end of the second heat exchanger and the liquid inlet of the liquid storage tank.

[0013] Furthermore, it also includes a gas-liquid separation tank, the inlet end of which is connected to the liquid outlet of the liquid storage tank and the outlet end of the first heat exchanger; the outlet end of the gas-liquid separation tank is connected to the suction end of the compressor, and the expansion valve is arranged between the two.

[0014] Furthermore, the first heat exchanger and the second heat exchanger are both in a vertical state and are spaced apart at one end of the base. The first heat exchanger and the second heat exchanger are both provided with a water inlet and a water outlet. The water inlet is located at the bottom of the first heat exchanger and the second heat exchanger and extends outwardly, and the water outlet is located at the top of the first heat exchanger and the second heat exchanger and extends outwardly.

[0015] Furthermore, a first solenoid valve and a drying filter are provided between the inlet end of the first heat exchanger and the inlet end of the gas-liquid separation tank.

[0016] Further, the exhaust end of the compressor is provided with a first stop valve, and the inlet end of the first heat exchanger is connected to the first stop valve;

[0017] A second stop valve is provided at the suction end of the compressor, and the outlet end of the gas-liquid separation tank is communicated with the second stop valve through a suction pipe.

[0018] Furthermore, the exhaust end of the compressor is also provided with a three-way valve connected to the first stop valve, a first bypass conduit connected to the inlet end of the first heat exchanger is provided between the first stop valve and the three-way valve, and a first bypass valve is provided on the first bypass conduit.

[0019] Furthermore, a second bypass valve is provided on the air intake pipe, and a second bypass conduit communicating with the second bypass valve and the drying filter is also provided at the inlet end of the gas-liquid separation tank.

[0020] Furthermore, a second solenoid valve is provided on the first bypass conduit, and a third solenoid valve is provided on the second bypass conduit.

[0021] Furthermore, it also includes a fan assembly, the fan assembly includes a fan and a wind shield net arranged inside the evaporator, the air inlet end of the fan faces the inside of the heat pump body, and the air outlet end of the fan faces the evaporator;

[0022] The fan comprises a driving motor and a fan blade, wherein the driving motor is arranged at the center of the wind shield net, and the output shaft of the driving motor faces the evaporator, and the fan blade is sleeved on the output shaft of the driving motor;

[0023] Two fans and two wind shield nets are provided and are arranged at intervals on the inner side of the evaporator along the length direction of the evaporator.

[0024] In summary, the heat pump unit of the utility model is provided with a second heat exchanger, and cold water is passed into the second heat exchanger. The medium flowing through the second heat exchanger recovers the heat in the cold water and transfers it to the first heat exchanger, so that the first heat exchanger outputs hot water and the second heat exchanger outputs cold water, thereby meeting the needs of swimming pool venues with cold areas and hot water areas, thereby reducing energy loss and saving usage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the heat pump unit of the utility model from the internal perspective 1;

[0026] Figure 2 This is a schematic diagram of the structure of the heat pump unit of the utility model from the second internal perspective.

[0027] The meanings of the reference numerals are as follows:

[0028] 1. Heat pump base; 11. Control cabinet; 2. Evaporator; 21. First one-way valve; 3. Fan assembly; 31. Drive motor; 32. Wind hood net; 4. Compressor; 41. Second stop valve; 411. Intake pipe; 412. Second bypass valve; 42. First stop valve; 421. First bypass duct; 4211. Second solenoid valve; 4212. First bypass valve; 43. Three-way valve; 5. Heat exchange assembly; 51. First heat exchanger; 511. Expansion valve; 512. First solenoid valve; 513. Dry filter; 52. Second heat exchanger; 521. Second one-way valve; 6. Gas-liquid separation tank; 61. Second bypass duct; 611. Third solenoid valve; 7. Liquid storage tank. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] 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 herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] like Figure 1-2 A heat pump unit shown in the figure includes a heat pump body (not marked in the figure), an evaporator 2 and a heat exchange component 5, the heat pump body includes a heat pump base 1, and a compressor 4 is provided on the heat pump base 1; the evaporator 2 is arranged on one side of the heat pump base 1, and the air inlet end of the evaporator 2 is connected to the exhaust end of the compressor 4; the heat exchange component 5 is arranged at one end of the heat pump base 1, and the heat exchange component 5 includes a first heat exchanger 51 for releasing heat and a second heat exchanger 52 for absorbing heat, the inlet end of the first heat exchanger 51 is connected to the exhaust end of the compressor 4, the outlet end of the first heat exchanger 51 is connected to the suction end of the compressor 4, and an expansion valve 511 is provided therebetween; the inlet end of the second heat exchanger 52 is connected to the liquid outlet end of the evaporator 2, and the outlet end of the second heat exchanger 52 is connected to the inlet end of the first heat exchanger 51; when cold water is passed into the second heat exchanger 52, the second heat exchanger 52 absorbs the heat of the cold water and transfers it to the first heat exchanger 51.

[0033] Based on the above structure, when the heat pump unit of the utility model is used, the compressor 4 pressurizes the medium to heat the medium and discharge it from the exhaust end of the compressor 4. A part of the high-temperature medium enters the interior of the first heat exchanger 51 from the inlet end thereof, and another part enters the interior of the evaporator 2 from the air inlet end thereof; the high-temperature medium entering the first heat exchanger 51 releases heat and heats the water flowing through the first heat exchanger 51; the high-temperature medium entering the evaporator 2 is subjected to the heat release effect of the evaporator 2 and forms a medium in an extremely low-temperature liquid state, and the medium in the liquid state enters the second heat exchanger 51 from the air inlet end thereof. The inlet end of the heat exchanger 52 enters the second heat exchanger 52, and absorbs the heat of the cold water flowing through the second heat exchanger 52 to increase the temperature of the medium. The medium that absorbs the heat flows out from the outlet end of the second heat exchanger 52 and enters the first heat exchanger 51 from the inlet end of the first heat exchanger 51 to transfer the heat in the cold water to the first heat exchanger 51, so that the first heat exchanger 51 outputs hot water and the second heat exchanger 52 outputs cold water, thereby meeting the needs of swimming pool venues with cold areas and hot water areas, thereby reducing energy loss and saving usage costs.

[0034] Furthermore, the heat pump unit of the utility model also includes a liquid storage tank 7, which is arranged between the evaporator 2 and the second heat exchanger 52, the liquid outlet end of the evaporator 2 and the inlet end of the second heat exchanger 52 are connected to the liquid inlet of the liquid storage tank 7, and a first one-way valve 21 is provided between the liquid outlet end of the evaporator 2 and the liquid inlet of the liquid storage tank 7, and a second one-way valve 521 is provided between the inlet end of the second heat exchanger 52 and the liquid inlet of the liquid storage tank 7.

[0035] It should be noted that after the medium is converted into liquid by the heat release of the evaporator 2, it flows through the first one-way valve 21, a part of it enters the liquid storage tank 7, and the other part enters the second heat exchanger 52 through the second one-way valve 521 to absorb the heat of the cold water flowing through the second heat exchanger 52.

[0036] Furthermore, the heat pump unit of the utility model also includes a gas-liquid separation tank 6, the inlet end of the gas-liquid separation tank 6 is connected to the liquid outlet of the liquid storage tank 7 and the outlet end of the first heat exchanger 51; the outlet end of the gas-liquid separation tank 6 is connected to the suction end of the compressor 4, and the expansion valve 511 is arranged between the two.

[0037] It should be noted that the function of the gas-liquid separation tank 6 is to prevent the liquid medium from entering the compressor 4 to damage the compressor 4, and the function of the expansion valve 511 is to allow the medium that has released heat through the first heat exchanger 51 to become low-temperature and low-pressure wet steam through its throttling and enter the gas-liquid separation tank 6 for gas-liquid separation.

[0038] Specifically, the first heat exchanger 51 and the second heat exchanger 52 are both in a vertical state and are spaced apart at one end of the heat pump base 1. The first heat exchanger 51 and the second heat exchanger 52 are both provided with a water inlet and a water outlet. The water inlet is located at the bottom of the first heat exchanger 51 and the second heat exchanger 52 and extends outwardly, and the water outlet is located at the top of the first heat exchanger 51 and the second heat exchanger 52 and extends outwardly.

[0039] A first solenoid valve 512 and a drying filter 513 are provided between the inlet end of the first heat exchanger 51 and the inlet end of the gas-liquid separation tank 6 .

[0040] Specifically, the exhaust end of the compressor 4 is provided with a first stop valve 42, and the inlet end of the first heat exchanger 51 is connected to the first stop valve 42; the intake end of the compressor 4 is provided with a second stop valve 41, and the outlet end of the gas-liquid separation tank 6 is connected to the second stop valve 41 through the intake pipe 411.

[0041] Furthermore, the exhaust end of the compressor 4 is also provided with a three-way valve 43 connected to the first stop valve 42, and a first bypass conduit 421 connected to the inlet end of the first heat exchanger 51 is provided between the first stop valve 42 and the three-way valve 43, and a first bypass valve 4212 is provided on the first bypass conduit 421.

[0042] Furthermore, the air intake pipe 411 is provided with a second bypass valve 412, and the inlet end of the gas-liquid separation tank 6 is also provided with a second bypass conduit 61 connected with the second bypass valve 412 and the drying filter 513. Among them, the first bypass conduit 421 is provided with a second solenoid valve 4211, and the second bypass conduit 61 is provided with a third solenoid valve 611.

[0043] Furthermore, the heat pump unit of the utility model also includes a fan assembly 3, which includes a fan and a wind hood net 32 ​​arranged on the inner side of the evaporator 2, the air inlet end of the fan faces the heat pump body, and the air outlet end of the fan faces the evaporator 2; the fan includes a drive motor 31 and fan blades, the drive motor 31 is arranged at the center of the wind hood net 32, and the output shaft of the drive motor 31 faces the evaporator 2, and the fan blades are mounted on the output shaft of the drive motor 31; two fans and two wind hood nets 32 are each provided and are arranged at intervals on the inner side of the evaporator 2 along the length direction thereof; when in use, the drive motor 31 drives the fan blades to rotate and dissipates the heat of the high-temperature medium entering the evaporator 2, so that the high-temperature medium is cooled into a liquid state and enters the second heat exchanger 52 to absorb heat.

[0044] It should be noted that a control cabinet 11 is further provided at the other end of the heat pump base 1 , and the control cabinet 11 is electrically connected to the compressor 4 and the drive motor 31 .

[0045] In summary, the heat pump unit of the present invention is provided with a second heat exchanger 52, and cold water is passed into the second heat exchanger 52. The medium flowing through the second heat exchanger 52 recovers the heat in the cold water and transfers it to the first heat exchanger 51, so that the first heat exchanger 51 outputs hot water and the second heat exchanger 52 outputs cold water, thereby meeting the needs of swimming pool venues with cold areas and hot water areas, thereby reducing energy loss and saving usage costs.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In addition, in the description of the present utility model, "multiple" and "several" mean two or more than two, unless otherwise clearly and specifically defined.

[0049] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above 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 utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A heat pump unit, characterized in that: include: A heat pump body, comprising a heat pump base, on which a compressor is arranged; An evaporator is arranged on one side of the heat pump base, and an air inlet end of the evaporator is communicated with an air outlet end of the compressor; A heat exchange assembly is arranged at one end of the heat pump base, the heat exchange assembly includes a first heat exchanger for releasing heat and a second heat exchanger for absorbing heat, the inlet end of the first heat exchanger is connected to the exhaust end of the compressor, the outlet end of the first heat exchanger is connected to the suction end of the compressor, and an expansion valve is arranged between the two; The inlet end of the second heat exchanger is connected to the liquid outlet end of the evaporator, and the outlet end of the second heat exchanger is connected to the inlet end of the first heat exchanger; When cold water flows into the second heat exchanger, the second heat exchanger absorbs the heat of the cold water and transfers it to the first heat exchanger.

2. The heat pump unit according to claim 1, characterized in that: It also includes a liquid storage tank, which is arranged between the evaporator and the second heat exchanger. The liquid outlet end of the evaporator and the inlet end of the second heat exchanger are connected to the liquid inlet of the liquid storage tank, and a first one-way valve is provided between the liquid outlet end of the evaporator and the liquid inlet of the liquid storage tank, and a second one-way valve is provided between the inlet end of the second heat exchanger and the liquid inlet of the liquid storage tank.

3. The heat pump unit according to claim 2, characterized in that: It also includes a gas-liquid separation tank, the inlet end of which is connected to the liquid outlet of the liquid storage tank and the outlet end of the first heat exchanger; the outlet end of the gas-liquid separation tank is connected to the suction end of the compressor, and the expansion valve is arranged between the two.

4. The heat pump unit according to any one of claims 1 to 3, characterized in that: The first heat exchanger and the second heat exchanger are both in a vertical state and are spaced apart at one end of the base. The first heat exchanger and the second heat exchanger are both provided with a water inlet and a water outlet. The water inlet is located at the bottom of the first heat exchanger and the second heat exchanger and extends outwardly, and the water outlet is located at the top of the first heat exchanger and the second heat exchanger and extends outwardly.

5. The heat pump unit according to claim 3, characterized in that: A first solenoid valve and a drying filter are provided between the inlet end of the first heat exchanger and the inlet end of the gas-liquid separation tank.

6. The heat pump unit according to claim 5, characterized in that: The exhaust end of the compressor is provided with a first stop valve, and the inlet end of the first heat exchanger is connected to the first stop valve; A second stop valve is provided at the suction end of the compressor, and the outlet end of the gas-liquid separation tank is communicated with the second stop valve through a suction pipe.

7. The heat pump unit according to claim 6, characterized in that: The exhaust end of the compressor is also provided with a three-way valve connected to the first stop valve, a first bypass conduit connected to the inlet end of the first heat exchanger is provided between the first stop valve and the three-way valve, and a first bypass valve is provided on the first bypass conduit.

8. The heat pump unit according to claim 7, characterized in that: A second bypass valve is provided on the air intake pipe, and a second bypass conduit communicating with the second bypass valve and the drying filter is also provided at the inlet end of the gas-liquid separation tank.

9. The heat pump unit according to claim 8, characterized in that: The first bypass conduit is provided with a second solenoid valve, and the second bypass conduit is provided with a third solenoid valve.

10. The heat pump unit according to any one of claims 1 to 3, characterized in that: It also includes a fan assembly, the fan assembly includes a fan and a wind shield net arranged inside the evaporator, the air inlet end of the fan faces the inside of the heat pump body, and the air outlet end of the fan faces the evaporator; The fan comprises a driving motor and a fan blade, wherein the driving motor is arranged at the center of the wind shield net, and the output shaft of the driving motor faces the evaporator, and the fan blade is sleeved on the output shaft of the driving motor; Two fans and two wind shield nets are provided and are arranged at intervals on the inner side of the evaporator along the length direction of the evaporator.

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