CN216953315U - Rotary dehumidification regeneration high-temperature heat pump system - Google Patents
Rotary dehumidification regeneration high-temperature heat pump system Download PDFInfo
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- CN216953315U CN216953315U CN202220074745.2U CN202220074745U CN216953315U CN 216953315 U CN216953315 U CN 216953315U CN 202220074745 U CN202220074745 U CN 202220074745U CN 216953315 U CN216953315 U CN 216953315U
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- 230000008929 regeneration Effects 0.000 title claims abstract description 100
- 238000011069 regeneration method Methods 0.000 title claims abstract description 100
- 238000007791 dehumidification Methods 0.000 title claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000001172 regenerating effect Effects 0.000 claims abstract description 11
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 9
- 230000005494 condensation Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 7
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- 239000002274 desiccant Substances 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 8
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- 229910052799 carbon Inorganic materials 0.000 description 3
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- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model relates to a rotary wheel dehumidification regeneration high-temperature heat pump system, wherein a normal-temperature heat pump system, a medium-temperature heat pump system and a high-temperature heat pump system are sleeved on an airflow pipeline in a dehumidification rotary wheel regeneration circulating system in series, and the dehumidification rotary wheel regeneration circulating system, the normal-temperature heat pump system, the medium-temperature heat pump system and the high-temperature heat pump system are regeneration closed circulating systems and have no external emission. The advantages are that: the regeneration closed cycle has no external discharge, no pollution and no waste; secondly, the multi-stage heat pump can save energy by more than 50% by regeneration, and the sensible heat and the latent heat are fully recovered, so that the energy-saving effect is prominent and substantial; and thirdly, free refrigeration is carried out while regenerative heating is carried out, moisture in the regenerative circulating air is removed, the regenerative air is dried again, and the dehumidification effect of the system is better.
Description
Technical Field
The utility model relates to a rotary wheel dehumidification regeneration high-temperature heat pump system with high regeneration temperature, no external environment interference on the regeneration self-circulation evaporation and condensation operation and no discharge, belonging to the field of compression circulation heat pumps and energy-saving and environment-friendly manufacturing.
Background
The applicant's prior patent CN206439917U entitled "a heat pump driven rotary wheel dehumidification system" includes a controller and a regeneration rotary wheel connected with the controller, the regeneration rotary wheel is divided into a treatment zone and a regeneration zone, and is characterized in that: the system also comprises a dehumidifying device connected with the controller, wherein the dehumidifying device comprises a compressor, a heat recovery condenser, a regenerative heating coil, an electronic expansion valve, an evaporation heat exchanger and a surface cooler; the heat recovery condenser is provided with a condenser first inlet, a condenser first outlet, a condenser second inlet and a condenser second outlet, the electronic expansion valve is provided with an expansion valve inlet and an expansion valve outlet, the evaporation heat exchanger is provided with a heat exchanger first inlet, a heat exchanger first outlet, a heat exchanger second inlet and a heat exchanger second outlet, the regeneration heating coil is provided with a heating coil inlet and a heating coil outlet, and the surface cooler is provided with a surface cooler inlet and a surface cooler outlet; the inlet of the compressor is connected with the first outlet of the heat exchanger through a pipeline, the outlet of the compressor is connected with the first inlet of the condenser through a pipeline, the first outlet of the condenser is connected with the inlet of the expansion valve through a pipeline, the outlet of the expansion valve is connected with the first inlet of the heat exchanger through a pipeline, and the compressor, the heat recovery condenser, the electronic expansion valve and the evaporation heat exchanger form circulation through pipelines; a second inlet of the condenser is connected with an outlet of the heating coil through a pipeline, a second outlet of the condenser is connected with an inlet of the heating coil through a pipeline, and circulation is formed between the heat recovery condenser and the regeneration heating coil through a pipeline; the second inlet of the heat exchanger is connected with the outlet of the surface cooler through a pipeline, the second outlet of the heat exchanger is connected with the inlet of the surface cooler through a pipeline, and circulation is formed between the connection of the evaporation heat exchanger and the surface cooler through a pipeline; the regeneration heating coil is connected with the regeneration area.
The patent has the advantages that: the high-temperature air energy heat pump absorbs low-temperature heat energy in air, converts the low-temperature heat energy into high-temperature heat energy after being compressed by a compressor, and has quite obvious energy-saving effect; secondly, the environment protection is facilitated; thirdly, the cold and hot are combined, the equipment application rate is high, and the investment is saved; through the high-efficient coupling of dehumidification system and heat pump, can reduce the renewable energy of dehumidification unit by a wide margin, help slowing down the heat island effect in city.
In practical application, the patent needs further improvement: the heat pump system comprises a single-stage heat pump, a condenser, a heat pump system evaporator, a heat pump system condenser and a heat pump system, wherein the condenser is low in heating temperature, small in application range, the regeneration cycle is in non-closed cycle, hot and humid air is discharged outside, environment-friendly energy waste is avoided, the heat pump system evaporator and the condenser are used as a dehumidifier surface cooler and a regeneration heater, the influence of external environment is large in the actual use process, and the influence on stability is large.
Disclosure of Invention
The design purpose is as follows: the defects in the prior art are avoided, and the rotary wheel dehumidification regeneration high-temperature heat pump system which is high in regeneration temperature, free of interference of external environment in regeneration self-circulation evaporation and condensation operation and free of any emission is designed.
The design scheme is as follows: in order to achieve the above-mentioned design object of the present invention. The utility model is based on the background technology:
the utility model relates to a design idea: 1. the adsorption dehumidifier provided by customers has the characteristics of high energy conservation, and can preheat the temperature of the regenerated air by utilizing waste heat, thereby reducing the energy consumption. Thus, various kinds of energy can be effectively utilized as the heat energy for regeneration. The method comprises the following steps: low temperature waste heat from various industrial processes, hot water from various boilers, compressor discharge heat from refrigeration processes, low temperature waste heat from various industrial processes, and solar water heaters, among others. 2. In the face of the aims of 'carbon peak reaching' and 'carbon neutralization' proposed by the country, the heat pump is adopted to replace fossil energy as a heat source, and the designed product enables customers to obtain direct economic benefits and realize the carbon reduction effect. Because the heat pump usually obtains low-grade clean heat energy from air, water or soil in the nature, does work through electric power, and then provides available high-level heat energy for use, the heat pump can be divided into three types according to the heat supply temperature in the prior art: the first is a normal temperature heat pump, the heating temperature is below 50 ℃ (for life and business, it is used for air source water heater); secondly, a medium temperature heat pump: 50-60 ℃ (for primary industrial use); thirdly, a high-temperature heat pump: 65 ℃ to 105 ℃ (to meet about 60% industrial heat requirement). During operation of the heat pump, the heat pump transfers heat from a low temperature to a high temperature through an inverse carnot cycle: (1) when the temperature difference between the low temperature and the high temperature is 15 ℃, 1 unit of electric energy can transfer 4 units of heat energy; (2) when the temperature difference between the low temperature and the high temperature is 35 ℃, 1 unit of electric energy can transfer 3 units of heat energy; (3) when the temperature difference between the low temperature and the high temperature is 40 ℃, 1 unit of electric energy can transfer 2.5 units of heat energy; (4) when the temperature difference between the low temperature and the high temperature is 50 ℃, 1 unit of electric energy can transfer 2.3 units of heat energy. It should be noted that: although the initial investment of heat pump application is relatively high, the initial investment of heat pump application is 2-4 times that of a common boiler and 20 times that of electric heating, and each heat pump is 4000-8000 yuan, the overall recovery period is short, and the single heating lasts for 10-24 months, but the heat pump has the advantages of energy conservation, emission reduction, low cost and high benefit in the long run.
Secondly, the utility model is based on the design of the system scheme: 1. the utility model recycles the regeneration inlet airflow (temperature 60 ℃, moisture content 20.75 g/kg) discharged by the conventional method, and carries out runner regeneration by recycling the regeneration inlet airflow which is originally required to be introduced from the unit processing airflow or the surrounding environment. 2. Three groups of heat pumps are respectively a normal temperature heat pump system, a medium temperature heat pump system and a high temperature heat pump system arranged on the dehumidification rotating wheel regeneration airflow system. (1) The high-temperature heat pump system adopts a high-temperature special totally-enclosed scroll compressor, the compressor adopts R245fa refrigerant, after the refrigerant is compressed in the compressor, the high-temperature high-pressure R245fa passes through a compressor exhaust pipeline to be cooled and condensed in a high-temperature heat pump condenser, the system condensation temperature can reach 125 ℃, the temperature of regenerated airflow outside the condenser can be raised to 120 ℃, the refrigerant is condensed into liquid after passing through the high-temperature heat pump condenser, the liquid enters a liquid storage device and an economizer in a subsequent circulation pipeline, the liquid enters an evaporator of the system after passing through an electronic expansion valve, the refrigerant in the evaporator evaporates and absorbs heat, and the regenerated airflow entering a regeneration fan is cooled and condensed. (2) The medium-temperature heat pump system adopts a fully-closed scroll compressor suitable for medium-temperature operation, the compressor adopts R134A refrigerant, a condenser and an evaporator in the system perform cooling and heating functions on regenerated airflow, the regenerated airflow with high temperature and high humidity is cooled and condensed, then heated and heated, and then sent to a dehumidification runner regeneration area for runner regeneration under the action of a regeneration fan. (3) The normal temperature heat pump system is configured with the medium temperature heat pump system. The three groups of heat pumps are respectively connected in series at two sides of the regeneration fan and respectively pass through the high-temperature heat pump evaporator, the medium-temperature heat pump evaporator, the normal-temperature heat pump evaporator, the regeneration fan, the normal-temperature heat pump condenser, the medium-temperature heat pump condenser and the high-temperature heat pump condenser according to the direction of regeneration airflow; before passing through the regeneration fan, the temperature of the regeneration air flow is reduced to 12 ℃, the relative humidity is 95%, the temperature of the regeneration air flow is increased from 12 ℃ to 120 ℃ after passing through the three-stage heat pump condenser, and the dehumidification and regeneration are carried out on the dehumidification rotating wheel. 3. In the aspect of regenerative heating of the dehumidification rotating wheel system, the regenerative heating can be steam heating, oil heating, electric heating and heat pump heating, the steam and oil heating is supplied in a centralized mode through a boiler, the electric heating is powered by a power grid, and the heat pump heating supplies heat through a condenser of the heat pump system. Accounting according to cost effectiveness statistics:
the data in the table show that the heat pump single heating system COP can reach 2-5, the cold and hot combined system COP can reach 3-7 and the energy-saving efficiency is high through the combined application of the heat pump.
The technical scheme is as follows: the utility model provides a runner dehumidification regeneration high temperature heat pump system, the air current pipeline series cover in the dehumidification runner regeneration circulating system has normal atmospheric temperature heat pump system, medium temperature heat pump system and high temperature heat pump system, and dehumidification runner regeneration circulating system, normal atmospheric temperature heat pump system, medium temperature heat pump system and high temperature heat pump system are regeneration closed circulating system, do not have external emission.
Compared with the background technology, the utility model has the advantages that firstly, the regeneration is in closed circulation, no external emission, no pollution and no waste are caused; secondly, the multi-stage heat pump can save energy by more than 50% by regeneration, and sensible heat and latent heat are fully recovered, so that the substantial energy-saving effect is achieved; and thirdly, the regenerative heating simultaneously carries out free and stable refrigeration, the refrigerating capacity can reach twice of the input power of the compressor, most of water vapor in the regenerative air is removed simultaneously in the refrigeration process, the refrigeration and dehumidification effects are achieved, the dried regenerative air is carried out in the next link, the better dehumidification effect is achieved, and the regenerative air independently circulates, so that the whole system circulation is not influenced by the outside.
Drawings
FIG. 1 is a schematic diagram of a rotary wheel dehumidification regeneration high-temperature heat pump system.
Fig. 2 is a schematic view of the operation method of fig. 1.
Detailed Description
Example 1: reference is made to figure 1. A rotary wheel dehumidification regeneration high-temperature heat pump system comprises three sets of heat pump systems, namely 4, 5 and 6, a dehumidification rotary wheel 1, a regeneration fan 13, related structural parts and control parts. The dehumidification runner is divided into two areas, one is A dehumidification runner treatment area, and the other is B dehumidification runner regeneration area, and 1 dehumidification runner adopts special rubber strip to seal between two areas and with the surrounding environment, ensures independent operation between the air current, does not scurry wind each other. The dehumidifying rotating wheel 1 continuously runs around the central shaft of the rotating wheel under the action of a driving motor.
On the air current organization, the moisture processing air current 2 is dehumidified and dried by passing through the dehumidification rotary wheel processing area A, and the high-temperature regeneration air current 2 is reversely dried by passing through the dehumidification rotary wheel regeneration area B.
According to the practical case, the processing air flow 2 is processed to the parameter temperature of 12-15 ℃ through the previous process, the relative humidity is about 95%, the temperature is the economic air inlet parameter of the dehumidification runner 1, the processing air flow 2 is adsorbed in the dehumidification runner processing area A, after the processing, the temperature of the processing air flow 2 is increased, the humidity is reduced, the subsequent air processing process is carried out, or the processing air flow is sent to a drying room under the action of a fan.
The regeneration air flow 3 reversely enters the dehumidification rotating wheel regeneration area B, the entering parameter of the regeneration air flow 3 is 120 ℃, the moisture content is 8.75g/kg, the temperature of the regeneration air flow 3 passing through the dehumidification rotating wheel regeneration area B is 60 ℃, and the moisture content is 20.75 g/kg.
In the embodiment, the evaporator and the condenser of the 4, 5, 6-stage heat pump in the regeneration system respectively perform cooling condensation and heating treatment on the regeneration air flow 3, in the embodiment, the temperature of the regeneration air flow 3 at 60 ℃ is respectively reduced to 25 ℃, 18.5 ℃, and 12 ℃ through the high-temperature heat pump condenser 10, the medium-temperature heat pump condenser 11, and the normal-temperature heat pump condenser 12, and the above cooling process is a cooling condensation process, and moisture in the regeneration air flow 3 in the process is condensed and discharged through the drain pipe. The regeneration air flow 3 passes through a normal temperature heat pump condenser 14, a medium temperature heat pump condenser 15 and a high temperature heat pump condenser 16 in sequence under the action of a regeneration fan 13, and the temperature is respectively raised to 45 ℃, 80 ℃ and 120 ℃. The high-temperature regeneration airflow 3 is recycled to carry out moisture desorption regeneration on the dehumidification rotary wheel regeneration area B.
The high-temperature heat pump system 6 adopts R245fa refrigerant to make the condensation temperature of the system reach 125 ℃; the medium temperature heat pump system 5 adopts R134A refrigerant, and the condensation temperature of the system reaches 85 ℃.
The system adopts a specially designed PLC control program to automatically adjust according to the room parameter state and the air flow parameters of each component, so that the system achieves the purpose of energy-saving operation.
Referring to fig. 2 (the operation of fig. 2 can be realized by inputting parameters on the PLC controller). On the basis of the embodiment 1, a working method of a rotary wheel dehumidification and regeneration high-temperature heat pump system is characterized in that a dehumidification rotary wheel 1 is divided into two areas, one area is a dehumidification rotary wheel processing area A, the other area is a dehumidification rotary wheel regeneration area B, special rubber strips are adopted between the two areas of the dehumidification rotary wheel 1 and the surrounding environment for sealing, the independent operation of air flows between the dehumidification rotary wheel processing area A and the dehumidification rotary wheel regeneration area B is ensured, air fleeing does not occur between the dehumidification rotary wheel processing area A and the dehumidification rotary wheel regeneration area B, the dehumidification rotary wheel 1 continuously operates around a rotary wheel central shaft under the action of a driving motor, a humid processing air flow 2 is subjected to dehumidification and drying through the dehumidification rotary wheel processing area A, a high-temperature regeneration air flow 2 is subjected to drying treatment on the rotary wheel through the dehumidification rotary wheel regeneration area B, and a regeneration inlet air flow which is originally required to be introduced from a unit processing air flow or the surrounding environment is subjected to dehumidification and regeneration through a regeneration exhaust air flow; the high-temperature heat pump system on the regenerated air flow adopts a high-temperature special totally-enclosed scroll compressor, the compressor adopts a high-temperature refrigerant, after the high-temperature refrigerant is compressed in the compressor, the high-temperature high-pressure refrigerant is cooled and condensed in a high-temperature heat pump condenser through a compressor exhaust pipeline, the condensing temperature of the system can reach 125 ℃, the temperature of the regenerated air flow outside the condenser can be raised to 120 ℃, the refrigerant is condensed into liquid after passing through the high-temperature heat pump condenser, the liquid enters a liquid storage device and an economizer in a subsequent circulation pipeline, then enters an evaporator of the system through an electronic expansion valve, the refrigerant evaporates and absorbs heat in the evaporator, and the regenerated air flow entering a regeneration fan is cooled and condensed; the medium-temperature heat pump system adopts a fully-closed scroll compressor suitable for medium-temperature operation, the compressor adopts a medium-temperature refrigerant, a condenser and an evaporator in the system perform cooling and heating functions on regenerated airflow, the regenerated airflow with high temperature and high humidity is cooled and condensed, then heated and heated, and then sent to a dehumidification runner regeneration area under the action of a regeneration fan for runner regeneration; the three groups of heat pumps are respectively connected in series at two sides of the regeneration fan, and respectively pass through the high-temperature heat pump evaporator, the medium-temperature heat pump evaporator, the normal-temperature heat pump evaporator, the regeneration fan, the normal-temperature heat pump condenser, the medium-temperature heat pump condenser and the high-temperature heat pump condenser according to the trend of the regeneration air flow, before passing through the regeneration fan, the regeneration air flow is cooled and condensed to 12 ℃, the relative humidity is 95%, after passing through the three-stage heat pump condenser, the temperature of the regeneration air flow is increased from 12 ℃ to 120 ℃, and the dehumidification and regeneration are carried out on the dehumidification rotating wheel.
It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.
Claims (9)
1. The utility model provides a runner dehumidification regeneration high temperature heat pump system, includes the PLC controller, characterized by: the normal temperature heat pump system, the medium temperature heat pump system and the high temperature heat pump system are sleeved on the airflow pipeline in the dehumidification rotating wheel regeneration circulating system in series, and the dehumidification rotating wheel regeneration circulating system, the normal temperature heat pump system, the medium temperature heat pump system and the high temperature heat pump system are closed circulating systems and are free of external emission.
2. The rotary dehumidification regeneration high temperature heat pump system as set forth in claim 1, wherein: the outlet of a regeneration circulating fan in the dehumidification rotating wheel regeneration circulating system is communicated with the inlet of a right airflow pipeline, the outlet of the right airflow pipeline is opposite to the fluid inlet surface of the dehumidification rotating wheel, the fluid outlet surface of the dehumidification rotating wheel is communicated with the inlet of a left airflow pipeline, and the outlet of the airflow pipeline is communicated with the inlet of the regeneration circulating fan.
3. The rotary wheel dehumidification regeneration high temperature heat pump system as set forth in claim 1, wherein: the desiccant wheel is divided into two zones, one zone for desiccant wheel treatment and the other zone for desiccant wheel regeneration.
4. The rotary dehumidification regeneration high temperature heat pump system as set forth in claim 1, wherein: an outlet of a normal-temperature compressor in the normal-temperature heat pump system is communicated with an inlet of a normal-temperature heat pump condenser through a fluid pipeline, an outlet of the normal-temperature heat pump condenser is communicated with an inlet of a normal-temperature heat pump evaporator through a fluid pipeline, and an outlet of the normal-temperature heat pump evaporator is communicated with an inlet of the normal-temperature compressor through a fluid pipeline; an outlet of a medium-temperature compressor in the medium-temperature heat pump system is communicated with an inlet of a medium-temperature heat pump condenser through a fluid pipeline, an outlet of the medium-temperature heat pump condenser is communicated with an inlet of a medium-temperature heat pump evaporator through a fluid pipeline, and an outlet of the medium-temperature heat pump evaporator is communicated with an inlet of the medium-temperature compressor through a fluid pipeline; the outlet of a high-temperature compressor in the high-temperature heat pump system is communicated with the inlet of a high-temperature heat pump condenser through a fluid pipeline, the outlet of the high-temperature heat pump condenser is communicated with the inlet of a high-temperature heat pump evaporator through a fluid pipeline, and the outlet of the high-temperature heat pump evaporator is communicated with the inlet of the high-temperature compressor through a fluid pipeline.
5. The rotary dehumidification regeneration high temperature heat pump system as set forth in claim 4, wherein: the condenser tubes of the normal-temperature heat pump condenser, the medium-temperature heat pump condenser and the high-temperature heat pump condenser are in elliptical tube structures, and the long axes of the ellipses are parallel to the direction of airflow, so that air escape and turbulence are reduced, air resistance is reduced, and heat transfer coefficient is improved; the normal temperature heat pump evaporator, the medium temperature heat pump evaporator and the high temperature heat pump evaporator are in elliptical tube structures, the long axes of the ellipses are parallel to the direction of air flow, air escape and turbulence are reduced, air resistance is reduced, and heat transfer coefficients are improved.
6. The rotary dehumidification regeneration high temperature heat pump system as set forth in claim 4, wherein: the three sets of heat pump condensers are divided into three condensing heaters in three equal parts according to heat required by regenerative heating and temperature rise, and are matched with corresponding compressors, evaporators and heat pump pipeline accessories according to the heat productivity and the air inlet temperature of the heat pump condensers.
7. The rotary dehumidification regeneration high temperature heat pump system as set forth in claim 1, wherein: the high-temperature heat pump system adopts a high-temperature heat pump refrigerant, and the condensation temperature of a refrigeration compressor is 125 ℃.
8. The rotary dehumidification regeneration high temperature heat pump system as set forth in claim 1, wherein: the medium temperature heat pump system adopts medium temperature heat pump refrigerant, and the condensation temperature of a refrigeration compressor is 85 ℃.
9. The rotary dehumidification regeneration high temperature heat pump system as set forth in claim 1, wherein: the two areas of the dehumidifying rotating wheel and the surrounding environment are sealed by rubber strips.
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| CN202220074745.2U CN216953315U (en) | 2022-01-12 | 2022-01-12 | Rotary dehumidification regeneration high-temperature heat pump system |
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| CN202220074745.2U CN216953315U (en) | 2022-01-12 | 2022-01-12 | Rotary dehumidification regeneration high-temperature heat pump system |
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Address after: No. 2088, Keji Avenue, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province, 311305 Patentee after: Hangzhou Jierui Intelligent Equipment Co.,Ltd. Address before: No. 2088, Keji Avenue, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province, 311305 Patentee before: HANGZHOU DRY AIR TREATMENT EQUIPMENT Co.,Ltd. |
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