Heat pump system applied to low-temperature dehumidification renewable energy recovery

Abstract

The invention discloses a heat pump system applied to low-temperature dehumidification renewable energy recycling. A heat pump mechanism comprises a compressor, a dehumidification coil pipe, a dehumidification coil pipe throttling device, a heat absorption coil pipe, a heat absorption coil pipe throttling device, a proportional valve, a cooling coil pipe, a cooling coil pipe throttling device and a condensation reheating coil pipe, and the condensation reheating coil pipe comprises a fresh air channel and a regeneration air channel; energy generated in the dehumidification process of the fresh air channel and the heat absorption process of the heat absorption coil pipe is absorbed, heat is provided for the regeneration air channel through circulation of the heat pump mechanism, the functions of desorption regeneration, adsorption recovery and the like on the rotating wheel are achieved, control over the fresh air supply humidity is achieved through the combination of dehumidification of the dehumidification coil pipe and dehumidification of the rotating wheel, and the dehumidification efficiency is improved. Through regulation and control of the proportional valve, heat can be freely recycled from the dehumidification process of the dehumidification coil pipe and the heat absorption process of the heat absorption coil pipe, then the temperature of fresh air heated due to dehumidification of the rotating wheel is controlled through the cooling coil pipe, and accurate control over the air supply temperature and humidity of the fresh air is achieved, and energy is recycled and applied to regeneration of the rotating wheel.

Description

Technical Field

[0001] The present application relates to the technical field of energy recovery heat pump systems, and in particular to a heat pump system for low-temperature dehumidification and regeneration energy recovery. Background Art

[0002] With the advancement of science and technology, dehumidification units have been widely used and developed in the fields of electronics, food, medicine, and chemical industry. For low-humidity fresh air treatment, the current treatment method is to pre-dehumidify the fresh air through the cold water coil first, and then perform secondary dehumidification through the rotor. The fresh air after the rotor needs to be cooled again through the cold water coil to control the temperature and humidity of the fresh air within the required target. The cold water circulating in the cold water coil needs to be provided by a separate chiller, which consumes a lot of electricity to drive. The wheel that absorbs moisture needs to be continuously regenerated. The current conventional practice is to use steam or electric heating for heating and regeneration. Steam requires the consumption of fossil fuels, while electric heating is inefficient. This results in a lot of energy waste. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the purpose of this application is to provide a heat pump system for low-temperature dehumidification and regeneration energy recovery, thereby effectively solving the above-mentioned technical problems.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] The present application provides a heat pump system for low-temperature dehumidification and regeneration energy recovery, comprising:

[0006] A heat pump mechanism, the heat pump mechanism comprising a compressor, a dehumidifying coil and a dehumidifying coil throttling device, a heat absorbing coil and a heat absorbing coil throttling device, a proportional valve, a cooling coil and a cooling coil throttling device, and a condensing reheating coil, wherein the first end of the compressor is connected to the first end of the condensing reheating coil, the second end of the condensing reheating coil is connected to the first end of the proportional valve, and at the same time, the second end of the condensing reheating pipe is connected to the first end of the cooling coil through the cooling coil throttling device, the second end of the proportional valve is connected to the first end of the dehumidifying coil through the dehumidifying coil throttling device, the third end of the proportional valve is connected to the first end of the heat absorbing coil through the heat absorbing coil throttling device, and the second end of the dehumidifying coil, the second end of the heat absorbing coil and the second end of the cooling coil are simultaneously connected to the second end of the compressor;

[0007] A fresh air channel, wherein a first inlet is provided at a first end of the fresh air channel, and a first outlet is provided at a second end of the fresh air channel, and according to the flow direction of the airflow in the fresh air channel, the fresh air channel sequentially includes a direct expansion dehumidification section, a first low-temperature rotary dehumidification section, a direct expansion cooling section and a fresh air outlet section, wherein the dehumidification coil throttling device and the dehumidification coil are arranged in the direct expansion dehumidification section, a low-temperature dehumidification regeneration rotary wheel is arranged in the first low-temperature rotary dehumidification section, the cooling coil throttling device and the cooling coil are arranged in the direct expansion cooling section, a fresh air fan is arranged in the fresh air outlet section, and the dehumidification coil, the low-temperature dehumidification regeneration rotary wheel, the cooling coil and the fresh air fan are sequentially arranged and combined to form an air dehumidification structure located in the fresh air channel;

[0008] A regeneration air channel, wherein a second inlet is provided at the first end of the regeneration air channel, and a second outlet is provided at the second end of the regeneration air channel. According to the flow direction of the airflow in the regeneration air channel, the regeneration air channel sequentially includes a direct expansion system section, a condensation reheat section, a second low-temperature rotor dehumidification section, a direct expansion heat absorption section and a regeneration air outlet section, wherein the compressor is arranged in the direct expansion system section, the condensation reheat coil is arranged in the condensation reheat section, the low-temperature dehumidification regeneration rotor is simultaneously arranged in the second low-temperature rotor dehumidification section, the heat absorption coil throttling device and the heat absorption coil are arranged in the direct expansion heat absorption section, and a regeneration air fan is arranged in the regeneration air outlet section, and the condensation reheat coil, the low-temperature dehumidification regeneration rotor, the heat absorption coil and the regeneration air fan are sequentially arranged and combined to form a rotor desorption regeneration air structure located in the regeneration air channel.

[0009] Furthermore, the low-temperature dehumidification regeneration wheel is used in the fresh air channel to adsorb moisture in the air to dry the air, and the low-temperature dehumidification regeneration wheel is used in the regeneration air channel to release moisture into the air to perform desorption and regeneration. The first low-temperature wheel dehumidification section and the second low-temperature wheel dehumidification section share the same low-temperature dehumidification regeneration wheel, and the low-temperature dehumidification regeneration wheel adopts a polymer adsorption and desorption material, and the polymer adsorption and desorption material includes a polymer adsorbent or silica gel or molecular sieve or aluminum phosphate molecular sieve or activated carbon.

[0010] Furthermore, the fresh air fan includes a centrifugal fan or an axial flow fan.

[0011] Furthermore, the regeneration fan includes a centrifugal fan or an axial flow fan.

[0012] Furthermore, the compressor includes a scroll compressor, a rotor compressor, a centrifugal compressor, a piston compressor, or a screw compressor, and the compression mode of the compressor includes fixed frequency or variable frequency.

[0013] Furthermore, the dehumidification coil throttling device includes an electronic expansion valve, a thermal expansion valve, a manual expansion valve, a float expansion valve, or one or more expansion valves or a throttling capillary tube.

[0014] Furthermore, the dehumidification coil comprises a finned heat exchanger with a ventilation gap in the middle.

[0015] Furthermore, the heat absorbing coil throttling device includes an electronic expansion valve, a thermal expansion valve, a manual expansion valve, a float expansion valve, one or more expansion valves, or a throttling capillary tube.

[0016] Furthermore, the heat absorbing coil comprises a fin heat exchanger with a ventilation gap in the middle.

[0017] Furthermore, the proportional valve includes an electric proportional valve, an electromagnetic proportional valve, or an electro-hydraulic proportional valve.

[0018] Furthermore, the cooling coil throttling device includes an electronic expansion valve, a thermal expansion valve, a manual expansion valve, a float expansion valve, or one or more expansion valves or a throttling capillary tube.

[0019] Furthermore, the cooling coil comprises a finned heat exchanger with a ventilation gap in the middle.

[0020] Furthermore, the condensing reheat coil comprises a finned heat exchanger with a ventilation gap in the middle.

[0021] Furthermore, the compressor, dehumidification coil throttling device, dehumidification coil, heat absorption coil throttling device, heat absorption coil, proportional valve, cooling coil throttling device, cooling coil and condensing reheat coil of the heat pump mechanism are sealed and connected through copper tubes.

[0022] Beneficial Effects

[0023] The present application provides a heat pump system for low-temperature dehumidification and regeneration energy recovery. The outdoor fresh air is sequentially dehumidified by the primary coil in the fresh air duct, dehumidified by the secondary rotary wheel, and cooled by the cooling coil, thereby realizing precise control of the fresh air supply temperature and humidity. At the same time, the system absorbs the energy generated by the dehumidification process of the fresh air duct and the heat absorption process of the heat absorption coil, circulates it through the heat pump mechanism, and provides heat to the regeneration air duct, avoiding the use of energy converted from primary petrochemicals or inefficient electrical energy, thereby realizing the desorption regeneration and adsorption restoration functions of the rotary wheel. The heat can be freely recovered from the dehumidification process of the dehumidification coil and the heat absorption process of the heat absorption coil through the regulation of the proportional valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure. The shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions and are only intended to illustrate the content of the present application.

[0025] Figure 1 A schematic diagram of the low-temperature dehumidification regeneration energy recovery heat pump system provided in one embodiment of the present application.

[0026] In the above figures,

[0027] 11. Compressor; 12. Condensation reheat coil; 13. Low-temperature dehumidification regeneration wheel; 14. Heat absorption coil; 15. Heat absorption coil throttling device; 16. Proportional valve; 17. Dehumidification coil throttling device; 18. Dehumidification coil; 19. Cooling coil throttling device; 110. Cooling coil; 100. Fresh air fan; 200. Regeneration air fan;

[0028] A, fresh air channel; A0, first inlet; A1, direct expansion dehumidification section; A2, first low-temperature rotary dehumidification section; A3, direct expansion cooling section; A4, fresh air outlet section; A5, first outlet;

[0029] B, regeneration air channel; B0, second inlet; B1, direct expansion system section; B2, condensation reheat section; B3, second low-temperature rotary dehumidification section; B4, direct expansion heat absorption section; B5, regeneration air outlet section; B6, second outlet. DETAILED DESCRIPTION

[0030] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted as the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0031] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this article, "electrical connection" includes the situation where the constituent elements are connected together through an element with some electrical function. "Elements with some electrical function" are not particularly limited as long as they can transfer electrical signals between the connected constituent elements. "Elements with some electrical function" can be, for example, electrodes or wiring, or switching elements such as transistors, or other functional elements such as resistors, inductors or capacitors. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0032] In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0033] Example

[0034] An embodiment of the present application provides a heat pump system for low-temperature dehumidification and regeneration energy recovery, such as Figure 1 As shown,

[0035] The system includes a heat pump mechanism, which includes a compressor 11, a dehumidification coil 18 and a dehumidification coil throttling device 17, a heat absorption coil 14 and a heat absorption coil throttling device 15, a proportional valve 16, a cooling coil 110 and a cooling coil throttling device 19, and a condensing reheating coil 12.

[0036] in:

[0037] The compressor 11 includes a scroll compressor 11 or a rotor compressor 11 or a centrifugal compressor 11 or a piston compressor 11 or a screw compressor 11, and also includes other refrigeration compression devices that can have equivalent functions. The compression form of the compressor 11 includes fixed frequency or variable frequency;

[0038] The dehumidification coil throttling device 17 includes an electronic expansion valve or a thermal expansion valve or a manual expansion valve or a floating ball expansion valve or one or more expansion valves or a throttling capillary tube, and also includes other throttling devices with throttling purposes;

[0039] The dehumidifying coil 18 includes a finned heat exchanger, and also includes other heat exchange refrigeration devices with equivalent functions;

[0040] The heat absorbing coil throttling device 15 includes an electronic expansion valve or a thermal expansion valve or a manual expansion valve or a floating ball expansion valve or one or more expansion valves or a throttling capillary tube, and also includes other throttling devices with throttling purposes;

[0041] The heat absorbing coil 14 includes a finned heat exchanger, and also includes other heat exchange refrigeration devices with equivalent functions;

[0042] The proportional valve 16 includes an electric proportional valve 16, an electromagnetic proportional valve 16, or an electro-hydraulic proportional valve 16, and also includes other control and adjustment devices with throttling purposes;

[0043] The cooling coil throttling device 19 includes an electronic expansion valve or a thermal expansion valve or a manual expansion valve or a floating ball expansion valve or one or more expansion valves or a throttling capillary tube, and also includes other throttling devices with throttling purposes;

[0044] The cooling coil 110 includes a finned heat exchanger, and also includes other heat exchange refrigeration devices with equivalent functions;

[0045] The condensing reheating coil 12 includes a finned heat exchanger and other heating devices for heating purposes.

[0046] The connection structure of each component of the heat pump mechanism is as follows:

[0047] The first end of the compressor 11 is connected to the first end of the condensing reheat coil 12, and the second end of the condensing reheat coil 12 is connected to the first end of the proportional valve 16. At the same time, the second end of the condensing reheat coil 12 is connected to the first end of the cooling coil 110 through the cooling coil throttling device 19, the second end of the proportional valve 16 is connected to the first end of the dehumidifying coil 18 through the dehumidifying coil throttling device 17, and the third end of the proportional valve 16 is connected to the heat absorbing coil 14 through the heat absorbing coil throttling device 15. The second end of the dehumidifying coil 18, the second end of the heat absorbing coil 14 and the second end of the cooling coil 110 are simultaneously connected to the second end of the compressor 11, and the above components are connected through copper tube sealing connections.

[0048] The system also includes a fresh air channel A, a first inlet A0 is provided at the first end of the fresh air channel A, a first outlet A5 is provided at the second end of the fresh air channel A, and according to the flow direction of the airflow in the fresh air channel A, the fresh air channel A includes a direct expansion dehumidification section A1, a first low-temperature rotary dehumidification section A2, a direct expansion cooling section A3 and a fresh air outlet section A4 in sequence, wherein the dehumidification coil throttling device 17 and the dehumidification coil 18 are arranged in the direct expansion dehumidification section A1, the first low-temperature rotary dehumidification section A2 is provided with a low-temperature dehumidification regeneration rotary wheel 13, and the low-temperature dehumidification regeneration rotary wheel 14 is provided with a low-temperature dehumidification regeneration rotary wheel 15. The wet regeneration wheel 13 is used in the fresh air channel A to absorb moisture in the air to dry the air. The low-temperature dehumidification regeneration wheel 13 adopts a polymer adsorption and desorption material, which includes a polymer adsorbent or silica gel or molecular sieve or aluminum phosphate molecular sieve or activated carbon. The cooling coil throttling device 19 and the cooling coil 110 are arranged in the direct expansion cooling section A3. A fresh air fan 100 is arranged in the fresh air outlet section A4. The fresh air fan 100 includes a centrifugal fan or an axial flow fan, and also includes other air supply devices that can have the same function;

[0049] The dehumidification coil 18, the low-temperature dehumidification regeneration wheel 13, the cooling coil 110 and the fresh air fan 100 are sequentially arranged and combined to form an air dehumidification structure located in the fresh air channel A.

[0050] A regeneration air channel B is provided with a second inlet B0 at the first end of the regeneration air channel B, and a second outlet B6 at the second end of the regeneration air channel B. According to the flow direction of the airflow in the regeneration air channel B, the regeneration air channel B includes a direct expansion system section B1, a condensation reheat section B2, a second low-temperature rotor dehumidification section B3, a direct expansion heat absorption section B4 and a regeneration air outlet section B5 in sequence, wherein a compressor 11 is arranged in the direct expansion system section B1, a condensation reheat coil 12 is arranged in the condensation reheat section B2, a low-temperature dehumidification regeneration rotor 13 is also arranged in the second low-temperature rotor dehumidification section B3, and the low-temperature dehumidification regeneration rotor 13 is used to release the regeneration air channel B. The moisture is removed from the dry air for desorption and regeneration, and the second low-temperature rotary dehumidification section B3 and the first low-temperature rotary dehumidification section A2 share the same low-temperature dehumidification regeneration wheel 13, the heat absorption coil throttling device 15 and the heat absorption coil 14 are arranged in the direct expansion heat absorption section B4, and a regeneration air fan 200 is arranged in the regeneration air outlet section B5. The regeneration fan includes a centrifugal fan or an axial flow fan, and also includes other air supply devices that can have the same function. The condensation reheat coil 12, the low-temperature dehumidification regeneration wheel 13, the heat absorption coil 14 and the regeneration air fan 200 are arranged in sequence and combined to form a rotary desorption regeneration air structure located in the regeneration air channel B.

[0051] This embodiment provides a heat pump system for low-temperature dehumidification and regeneration energy recovery, and the specific working principle is as follows:

[0052] The proportional valve 16 is used to adjust the channel angle to accurately control the flow rate of high-temperature and high-pressure refrigerant delivered to the dehumidification coil throttling device 17. After throttling and reducing the pressure through the dehumidification coil throttling device 17, the high-temperature and high-pressure liquid refrigerant is throttled to low-temperature and low-pressure. The low-temperature and low-pressure liquid refrigerant provides cooling to the dehumidification coil 18, thereby controlling the moisture content of the outdoor fresh air within the target value.

[0053] At this time, the outdoor fresh air passes through the dehumidification coil 18 for a cooling and dehumidification, and the gaseous moisture contained in the fresh air is condensed into liquid and discharged, becoming low-temperature dry fresh air. At the same time, after the refrigerant passes through the dehumidification coil 18, the low-temperature and low-pressure liquid refrigerant evaporates into a low-temperature and low-pressure gas refrigerant, which circulates into the compressor 11. The low-temperature dry fresh air that has undergone a cooling and dehumidification process passes through the low-temperature dehumidification regeneration wheel 13 for a secondary adsorption dehumidification and temperature increase. The heated dry fresh air passes through the cooling coil 110 and exchanges heat with the low-temperature and low-pressure liquid refrigerant that has been throttled by the cooling coil throttling device 19, and the temperature of the fresh air is controlled to the target value. The cooled dry fresh air is driven by the fresh air fan 100 and sent into the room. After the refrigerant enters the cooling coil 110 after throttling and pressure reduction, the low-temperature and low-pressure liquid refrigerant evaporates into a low-temperature and low-pressure gas refrigerant, which circulates into the compressor 11. At the same time, the compressor 11 of the heat pump mechanism will absorb and then compress the refrigerant that evaporates from the dehumidification coil 18 and the cooling coil 110 and turns into a low-temperature and low-pressure gaseous state, and compress the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is sent to the condensation reheat coil 12 through a pipeline, and after heat exchange, the high-temperature and high-pressure gaseous refrigerant is condensed into a high-temperature and high-pressure liquid refrigerant. At this time, the outdoor fresh air in the regeneration air channel passes through the condensation reheat coil 12, exchanges heat with the high-temperature and high-pressure gaseous refrigerant, and then the temperature is raised to the target value. The heated regenerated fresh air passes through the low-temperature dehumidification regeneration wheel 13 for desorption and regeneration, and takes away the moisture adsorbed on the low-temperature dehumidification regeneration wheel 13, so that the fresh air passes through the low-temperature dehumidification regeneration wheel 13 to restore the adsorption function. At the same time, the high-temperature and high-pressure liquid refrigerant condensed and cooled by the condensing and reheating coil 12 is transported to the cooling coil throttling device 19 and the proportional valve 16 through the pipeline, and then further distributed to the dehumidification coil throttling device 17 and the heat absorption coil throttling device 15 through the proportional valve 16, and then the operation is repeated. The heat absorption coil throttling device 15 is put into operation only when the heat provided by the dehumidification coil 18 and the cooling coil 110 is insufficient. Through the heat absorption coil throttling device 15, the proportional valve 16 adjusts the channel angle to control the throttling and decompression of the high-temperature and high-pressure liquid refrigerant to low-temperature and low-pressure liquid refrigerant. The low-temperature and low-pressure liquid refrigerant enters the heat absorption coil 14, and is desorbed and regenerated by the low-temperature dehumidification regeneration wheel 13. The refrigerant absorbs heat and evaporates into a low-temperature and low-pressure gaseous refrigerant, and then circulates to the compressor 11. The cooled fresh air is discharged by the regeneration fan.

[0054] In the present application, the outdoor fresh air passes through the primary coil dehumidification, secondary rotary wheel dehumidification and cooling coil 110 in the fresh air channel in sequence, thereby realizing precise control of the fresh air supply temperature and humidity. At the same time, the system absorbs the energy generated by the dehumidification process of the fresh air channel and the heat absorption process of the heat absorption coil 14, circulates it through the heat pump mechanism, and provides heat to the regeneration air channel, avoiding the use of energy converted from primary petrochemicals or inefficient electrical energy, thereby realizing the desorption regeneration and adsorption restoration functions of the rotary wheel. The proportional valve 16 is used to adjust the heat to freely recover heat from the dehumidification process of the dehumidification coil 18 and the heat absorption process of the heat absorption coil 14.

[0055] The above embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with the technology to understand the content of the present application and implement it accordingly, and they cannot be used to limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit of the present application shall be included in the protection scope of the present application.

Claims

1. A heat pump system for low-temperature dehumidification and regeneration energy recovery, characterized in that: include A heat pump mechanism, the heat pump mechanism comprising a compressor, a dehumidifying coil and a dehumidifying coil throttling device, a heat absorbing coil and a heat absorbing coil throttling device, a proportional valve, a cooling coil and a cooling coil throttling device, and a condensing reheating coil, wherein the first end of the compressor is connected to the first end of the condensing reheating coil, the second end of the condensing reheating coil is connected to the first end of the proportional valve, and at the same time, the second end of the condensing reheating pipe is connected to the first end of the cooling coil through the cooling coil throttling device, the second end of the proportional valve is connected to the first end of the dehumidifying coil through the dehumidifying coil throttling device, the third end of the proportional valve is connected to the first end of the heat absorbing coil through the heat absorbing coil throttling device, and the second end of the dehumidifying coil, the second end of the heat absorbing coil and the second end of the cooling coil are simultaneously connected to the second end of the compressor; A fresh air channel, wherein a first inlet is provided at a first end of the fresh air channel, and a first outlet is provided at a second end of the fresh air channel, and according to the flow direction of the airflow in the fresh air channel, the fresh air channel sequentially includes a direct expansion dehumidification section, a first low-temperature rotary dehumidification section, a direct expansion cooling section and a fresh air outlet section, wherein the dehumidification coil throttling device and the dehumidification coil are arranged in the direct expansion dehumidification section, a low-temperature dehumidification regeneration rotary wheel is arranged in the first low-temperature rotary dehumidification section, the cooling coil throttling device and the cooling coil are arranged in the direct expansion cooling section, a fresh air fan is arranged in the fresh air outlet section, and the dehumidification coil, the low-temperature dehumidification regeneration rotary wheel, the cooling coil and the fresh air fan are sequentially arranged and combined to form an air dehumidification structure located in the fresh air channel; A regeneration air channel, wherein a second inlet is provided at the first end of the regeneration air channel, and a second outlet is provided at the second end of the regeneration air channel. According to the flow direction of the airflow in the regeneration air channel, the regeneration air channel sequentially includes a direct expansion system section, a condensation reheat section, a second low-temperature rotor dehumidification section, a direct expansion heat absorption section and a regeneration air outlet section, wherein the compressor is arranged in the direct expansion system section, the condensation reheat coil is arranged in the condensation reheat section, the low-temperature dehumidification regeneration rotor is simultaneously arranged in the second low-temperature rotor dehumidification section, the heat absorption coil throttling device and the heat absorption coil are arranged in the direct expansion heat absorption section, and a regeneration air fan is arranged in the regeneration air outlet section, and the condensation reheat coil, the low-temperature dehumidification regeneration rotor, the heat absorption coil and the regeneration air fan are sequentially arranged and combined to form a rotor desorption regeneration air structure located in the regeneration air channel.

2. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The low-temperature dehumidification regeneration wheel is used in the fresh air channel to adsorb moisture in the air to dry the air, and the low-temperature dehumidification regeneration wheel is used in the regeneration air channel to release moisture into the air to perform desorption and regeneration. The first low-temperature wheel dehumidification section and the second low-temperature wheel dehumidification section share the same low-temperature dehumidification regeneration wheel. The low-temperature dehumidification regeneration wheel adopts a polymer adsorption and desorption material, and the polymer adsorption and desorption material includes a polymer adsorbent or silica gel or molecular sieve or aluminum phosphate molecular sieve or activated carbon.

3. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The fresh air fan includes a centrifugal fan or an axial flow fan.

4. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The regeneration fan includes a centrifugal fan or an axial flow fan.

5. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The compressor includes a scroll compressor, a rotor compressor, a centrifugal compressor, a piston compressor, or a screw compressor, and the compression mode of the compressor includes fixed frequency or variable frequency.

6. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The dehumidification coil throttling device includes an electronic expansion valve, a thermal expansion valve, a manual expansion valve, a floating ball expansion valve, one or more expansion valves, or a throttling capillary tube.

7. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The dehumidification coil includes a finned heat exchanger with a ventilation gap in the middle.

8. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The heat absorbing coil throttling device includes an electronic expansion valve, a thermal expansion valve, a manual expansion valve, a floating ball expansion valve, one or more expansion valves, or a throttling capillary tube.

9. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The heat absorbing coil comprises a fin heat exchanger with a ventilation gap in the middle.

10. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The proportional valve includes an electric proportional valve, an electromagnetic proportional valve, or an electro-hydraulic proportional valve.

11. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The cooling coil throttling device includes an electronic expansion valve, a thermal expansion valve, a manual expansion valve, a floating ball expansion valve, one or more expansion valves, or a throttling capillary tube.

12. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The cooling coil comprises a fin heat exchanger with a ventilation gap in the middle.

13. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The condensing reheat coil comprises a finned heat exchanger with a ventilation gap in the middle.

14. The heat pump system for low-temperature dehumidification and regeneration energy recovery according to claim 1, characterized in that: The compressor, dehumidification coil throttling device, dehumidification coil, heat absorption coil throttling device, heat absorption coil, proportional valve, cooling coil throttling device, cooling coil and condensation reheat coil of the heat pump mechanism are sealed and connected through copper tubes.

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