CN218915186U - Heat pump rotary dehumidifier - Google Patents
Heat pump rotary dehumidifier Download PDFInfo
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- CN218915186U CN218915186U CN202223025995.6U CN202223025995U CN218915186U CN 218915186 U CN218915186 U CN 218915186U CN 202223025995 U CN202223025995 U CN 202223025995U CN 218915186 U CN218915186 U CN 218915186U
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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 discloses a heat pump rotary dehumidifier which comprises a dehumidifier body, a carbon dioxide heat pump system, a regeneration ventilation channel and a dehumidification ventilation channel; the dehumidifier body comprises a regeneration zone and a treatment zone, the carbon dioxide heat pump system comprises a compressor, a gas cooler, a first evaporator and a second evaporator which are communicated in sequence, the gas cooler is arranged on the air inlet side of the regeneration zone, the first evaporator is arranged on the air inlet side of the treatment zone, and the second evaporator is arranged on the air outlet side of the treatment zone; the utility model can realize the following steps: the heat in the air before the dehumidification treatment of the treatment area is recycled, so that the cooling, dehumidification and impurity removal are facilitated; the heat recovery of the dry hot air after the dehumidification treatment of the treatment area can reduce the waste of energy sources in the exhausted air, the heat collected twice can be used for heating the regenerated air, the high energy consumption of the regenerated area depending on an electric heater for heating the air is reduced, and the running cost is reduced as a whole.
Description
Technical Field
The utility model relates to the technical field of rotary dehumidification, in particular to a heat pump rotary dehumidifier.
Background
Rotary dehumidification is a relatively scientific dehumidification technology developed recently, and the working principle is as follows: the dehumidifying rotating wheel is divided into a treatment area and a regeneration area by a sealing system in the dehumidifying section, and slowly rotates to ensure that the whole dehumidifying is a continuous process; when the air to be treated passes through the treatment area of the rotating wheel, moisture in the air is adsorbed by the moisture absorption medium in the rotating wheel, water molecules are simultaneously subjected to phase change and release latent heat, and the rotating wheel gradually tends to be saturated due to the fact that certain moisture is absorbed; at this time, the process air becomes dry and hot air due to the self-moisture reduction and latent heat release; meanwhile, in the regeneration area, the other path of air is heated by the electric heater firstly, becomes high-temperature air and passes through the saturated rotating wheel after moisture absorption, so that the absorbed moisture in the rotating wheel is evaporated, and the moisture absorption capacity of the rotating wheel is recovered; and then, the wet air is discharged to the outside through the regenerating fan. In the practical process, the regenerated air in the regeneration zone is completely heated by the electric heater to achieve the aim of high temperature, and the operation mode has higher operation cost and is unfavorable for energy conservation and emission reduction.
Disclosure of Invention
The utility model aims to overcome one or more defects in the prior art and provides a novel heat pump rotary dehumidifier, which can realize the following steps: the heat in the air before the dehumidification treatment of the treatment area is recycled, so that the cooling, dehumidification and impurity removal are facilitated; the heat of the dry hot air after the dehumidification treatment of the treatment area is recycled, so that the waste of energy sources in the exhausted air can be reduced, the collected heat can be used for heating the regenerated air, and the high energy consumption of the regenerated area depending on an electric heater for heating the air is reduced, so that the running cost is reduced as a whole.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a heat pump rotary dehumidifier, the heat pump rotary dehumidifier comprising: the device comprises a dehumidifier body, a carbon dioxide heat pump system, a regeneration ventilation channel and a dehumidification ventilation channel;
the dehumidifier body comprises a regeneration zone arranged on the track of the regeneration ventilation channel and a treatment zone arranged on the track of the dehumidification ventilation channel;
the carbon dioxide heat pump system comprises a compressor, a gas cooler, a first evaporator and a second evaporator which are sequentially communicated, wherein the gas cooler is arranged on the air inlet side of the regeneration zone, the first evaporator is arranged on the air outlet side of the treatment zone, and the second evaporator is arranged on the air inlet side of the treatment zone.
According to some preferred aspects of the present utility model, the carbon dioxide heat pump system further comprises an electronic expansion valve, a gas-liquid separator, and the compressor, the gas cooler, the electronic expansion valve, the first evaporator, the second evaporator, and the gas-liquid separator are in cyclic communication in this order.
According to some preferred aspects of the utility model, the carbon dioxide heat pump system further comprises a first chilled water coil assembly for use as a heat source for the first evaporator, the first chilled water coil assembly comprising a first chilled water coil capable of absorbing heat from dehumidified air that has been treated by the treatment zone, and a first water pump disposed on the first chilled water coil, a portion of the first chilled water coil being disposed on a track of the dehumidified ventilation pathway.
Further, the carbon dioxide heat pump system further comprises a second cold water coil assembly for serving as a heat source of the second evaporator, wherein the second cold water coil assembly comprises a second cold water coil capable of absorbing heat in air to be dehumidified which is not treated by the treatment area and a second water pump arranged on the second cold water coil, and a part of the second cold water coil is arranged on a track of the dehumidification ventilation channel.
Further, the heat pump rotary dehumidifier further comprises a first primary filter and a secondary filter, wherein the first primary filter, the second cold water coil pipe and the secondary filter are sequentially arranged, and the first primary filter and the secondary filter are respectively arranged on the track of the dehumidification and ventilation channel.
According to some preferred aspects of the utility model, the heat pump rotary dehumidifier further comprises a second primary filter arranged on the track of the regeneration ventilation channel and located on the air intake side of the gas cooler.
According to some preferred aspects of the utility model, the heat pump rotary dehumidifier further comprises an electric heater disposed on a track of the regeneration ventilation channel, and the electric heater is located between the regeneration zone and the gas cooler.
Further, the heat pump rotary dehumidifier further comprises a regeneration air inlet bypass air duct and an air valve arranged on the regeneration air inlet bypass air duct, wherein an inlet of the regeneration air inlet bypass air duct and an outlet of the regeneration air inlet bypass air duct are respectively communicated with the regeneration ventilation channel, the inlet is positioned between the electric heater and the gas cooler, and the outlet is positioned on one air outlet side of the regeneration zone.
Still further, this heat pump rotary dehumidifier still includes control system, set up in the air-out one side of gas cooler and be used for monitoring regeneration air temperature's temperature sensor, this control system respectively with the blast gate temperature sensor the electric heater communication connection.
In some embodiments of the utility model, the regeneration vent channel is disposed parallel to the dehumidification vent channel.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model adopts the rotary dehumidifier with the carbon dioxide heat pump, can supply hot air of 80-120 ℃ in the regeneration zone at one time, heat the fresh air from the ambient temperature to the target temperature at one time, send the fresh air to the regeneration zone for desorption, and accurately adjust the temperature of the air outlet without or only with a small amount of electric heating, thereby effectively improving the energy efficiency of the regeneration desorption of the rotary wheel and reducing the energy consumption of the regeneration zone; the two evaporators of the carbon dioxide heat pump provide cold energy for the treatment area of the rotary dehumidifier, so that the purposes of pre-cooling and dehumidifying fresh air can be realized, and the recovery of heat (the recovery of heat in air before dehumidifying treatment in the treatment area is beneficial to cooling, dehumidifying and impurity removal; the recovery of heat of dry hot air after dehumidifying treatment in the treatment area can reduce the waste of energy in the exhausted air, the collected heat can be used for heating regenerated air, and the high energy consumption of the regenerated area for heating air by an electric heater is reduced, so that the running cost is reduced as a whole);
the rotary dehumidifier adopting the carbon dioxide heat pump can fully utilize the refrigerating capacity and heating capacity of the carbon dioxide heat pump, can replace cold sources of a treatment area, such as a refrigerating unit and the like and heat sources of a regeneration area, such as a gas boiler, an electric boiler and the like, and the carbon dioxide heat pump adopts green refrigerant carbon dioxide, conforms to the national dual-carbon development strategy, adopts a heat pump technology serving as a renewable energy technology, and conforms to the electrified trend of energy equipment under the dual-carbon strategy.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a heat pump rotary dehumidifier according to an embodiment of the present utility model;
in the reference numerals: 11. a regeneration zone; 12. a treatment zone; l1, regenerating a ventilation channel; l2, dehumidifying and ventilating channels; l3, a regenerated air inlet bypass duct; 21. a compressor; 22. a gas cooler; 23. a first evaporator; 24. a second evaporator; 25. an electronic expansion valve; 26. a gas-liquid separator; 31. a first chilled water coil; 32. a first water pump; 41. a second chilled water coil; 42. a second water pump; 51. a first primary filter; 52. a medium-efficiency filter; 53. a treatment fan; 61. a second primary filter; 62. an electric heater; 63. an air valve; 64. and (5) regenerating a fan.
Detailed Description
The present utility model will be described in detail with reference to the drawings and the detailed description, so that the above objects, features and advantages of the present utility model can be more clearly understood. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The utility model adopts the rotary dehumidifier with the carbon dioxide heat pump, can supply hot air of 80-120 ℃ in the regeneration zone at one time, heat the fresh air from the ambient temperature to the target temperature at one time, send the fresh air to the regeneration zone for desorption, and accurately adjust the temperature of the air outlet without or only with a small amount of electric heating, thereby effectively improving the energy efficiency of the regeneration desorption of the rotary wheel and reducing the energy consumption of the regeneration zone; the two evaporators of the carbon dioxide heat pump provide cold energy for the treatment area of the rotary dehumidifier, so that the purposes of pre-cooling and dehumidifying fresh air can be realized, heat recovery is facilitated, and particularly, the heat recovery and utilization in the air before the dehumidification treatment of the treatment area can be realized, so that the purposes of cooling, dehumidifying and impurity removal are facilitated; the heat recovery and utilization of the dry hot air after the dehumidification treatment of the treatment area can be realized, the waste of energy sources in the exhausted air can be reduced, the collected heat can be used for heating the regenerated air, and the high energy consumption of the regenerated area for heating the air by relying on the electric heater is reduced, so that the running cost is reduced as a whole.
In addition, the rotary dehumidifier adopting the carbon dioxide heat pump can fully utilize the refrigerating capacity and heating capacity of the carbon dioxide heat pump, can replace cold sources of a treatment area, such as a refrigerating unit and the like and heat sources of a regeneration area, such as a gas boiler, an electric boiler and the like, and the carbon dioxide heat pump adopts green refrigerant carbon dioxide, conforms to the national dual-carbon development strategy, adopts a heat pump technology serving as a renewable energy technology, and conforms to the electrified trend of energy equipment under the dual-carbon strategy.
The preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, this example provides a heat pump rotary dehumidifier including: the dehumidifier comprises a dehumidifier body, a carbon dioxide heat pump system, a regeneration ventilation channel L1, a dehumidification ventilation channel L2, a treatment fan 53 arranged on the dehumidification ventilation channel L2 and a regeneration fan 64 arranged on the regeneration ventilation channel L1.
The heat pump rotary dehumidifier of this example includes the dehumidifier body, and it includes the regeneration zone 11 that sets up on the orbit of regeneration ventilation passageway L1 and sets up the processing zone 12 on the orbit of dehumidification ventilation passageway L2, and the structure of dehumidifier body is known, and specific details are not described here.
The carbon dioxide heat pump system of this example includes a compressor 21, a gas cooler 22, a first evaporator 23, and a second evaporator 24 that are sequentially connected, the gas cooler 22 is disposed on the air intake side of the regeneration zone 11, the first evaporator 23 is disposed on the air outlet side of the treatment zone 12, and the second evaporator 24 is disposed on the air intake side of the treatment zone 12. Further, in this example, the carbon dioxide heat pump system further includes an electronic expansion valve 25, a gas-liquid separator 26, and the compressor 21, the gas cooler 22, the electronic expansion valve 25, the first evaporator 23, the second evaporator 24, and the gas-liquid separator 26 are in sequential circulation communication.
As an alternative embodiment, the carbon dioxide heat pump system further comprises a first cold water coil assembly for use as a heat source for the first evaporator 23, the first cold water coil assembly comprising a first cold water coil 31 capable of absorbing heat in dehumidified air that has been treated by the treatment zone 12, and a first water pump 32 disposed on the first cold water coil 31, a portion of the first cold water coil 31 being disposed on the trajectory of the dehumidification ventilation channel L2.
As an alternative embodiment, the carbon dioxide heat pump system further comprises a second cold water coil assembly for use as a heat source for the second evaporator 24, the second cold water coil assembly comprising a second cold water coil 41 capable of absorbing heat in the air to be dehumidified that is not treated by the treatment zone 12, and a second water pump 42 disposed on the second cold water coil 41, a portion of the second cold water coil 41 being disposed on the trajectory of the dehumidification ventilation channel L2.
Further, the heat pump rotary dehumidifier further comprises a first primary filter 51, a second primary filter 61, a middle-effect filter 52 and an electric heater 62, wherein the first primary filter 51, the second cold water coil 41 and the middle-effect filter 52 are sequentially arranged, and the first primary filter 51 and the middle-effect filter 52 are respectively arranged on the track of the dehumidification and ventilation channel L2; the second primary filter 61 is disposed on the track of the regeneration vent passage L1 and is located on the air intake side of the gas cooler 22; the electric heater 62 is disposed on the locus of the regeneration vent passage L1, and the electric heater 62 is located between the regeneration zone 11 and the gas cooler 22.
In this embodiment, the descriptions of "first and second" in the first primary filter 51 and the second primary filter 61 are not related in order or limited in priority, but only for distinguishing the primary filters used in different areas, so as to facilitate distinguishing and understanding, and avoid confusion. Further, the primary filter is mainly used for filtering dust particles with the size of more than 5 mu m, the primary filter is in three types of plate type, folding type and bag type, the outer frame material comprises a paper frame, an aluminum frame and a galvanized iron frame, the filtering material comprises non-woven fabrics, nylon nets, active carbon filtering materials, metal hole nets and the like, and the protective net comprises double-sided plastic-spraying wire nets and double-sided galvanized wire nets and can be obtained commercially.
In this example, the intermediate filter 52 is an F-series filter of the air filter, the F-series intermediate air filter being divided into two types of bag type and non-bag type, wherein the bag type includes F5, F6, F7, F8, F9, the non-bag type includes FB (plate type intermediate filter), FS (partition type intermediate filter), FV (combined intermediate filter), particle dust and various suspended matters of 1 to 5 μm can be trapped, and is commercially available.
Further, the heat pump rotary dehumidifier further comprises a regeneration air inlet bypass air duct L3 and an air valve 63 arranged on the regeneration air inlet bypass air duct L3, wherein an inlet of the regeneration air inlet bypass air duct L3 and an outlet of the regeneration air inlet bypass air duct L3 are respectively communicated with the regeneration ventilation channel L1, the inlet is positioned between the electric heater 62 and the gas cooler 22, and the outlet is positioned at the air outlet side of the regeneration zone 11.
Still further, the heat pump rotary dehumidifier further comprises a control system (not shown) and a temperature sensor arranged at the air outlet side of the gas cooler 22 for monitoring the temperature of the regeneration air, wherein the control system is respectively in communication connection with the air valve 63, the temperature sensor and the electric heater 62. In other embodiments, a temperature sensor may be further disposed on the air outlet side of the electric heater 62, which is beneficial to further timely adjusting the regeneration temperature. The control system can be used for real-time and accurate adjustment according to the required regeneration temperature, so that the requirements under different working conditions are met, and the energy conservation and consumption reduction are realized.
As shown in fig. 1, in this example, the regeneration ventilation passage L1 is arranged in parallel with the dehumidification ventilation passage L2.
The working process of the heat pump rotary dehumidifier is as follows:
for the treatment zone: the air to be dehumidified is pumped and operated along the dehumidification ventilation channel L2 by the treatment fan 53, the air is initially filtered through the first primary filter 51, then is treated through the second cold water coil 41 and is absorbed by water in the second cold water coil 41 to achieve the aim of reducing the temperature of the air to be dehumidified, the partial heat can be used for heating the refrigerant carbon dioxide in the carbon dioxide heat pump system, the subsequent dehumidification is facilitated, the air enters the secondary filter 52 again for secondary filtration, then enters the treatment area 12 for dehumidification, the hygroscopic material in the treatment area 12 is subjected to hygroscopic treatment, and in the dehumidification process, the air becomes dry hot air due to self moisture reduction and latent heat release;
for the regeneration zone: the air to be heated is pumped and operated along the regeneration ventilation channel L1 by the regeneration fan 64, is firstly treated by the second primary filter 61 for preliminary filtration, and is then heated by the high-temperature carbon dioxide in the air cooler 22, so that the air to be heated can be heated from the ambient temperature to the target regeneration temperature at one time when the required regeneration temperature is relatively low; when the desired regeneration temperature requirement is relatively high, the electric heater 62 may be activated to back-heat the air that has been initially heated by the gas cooler 22, further increasing the temperature and reaching the target regeneration temperature; when the required regeneration temperature is lower, the temperature of the air to be heated can be raised by means of the carbon dioxide heat pump system, and the heat can be possibly more than the heat, at the moment, the air valve 63 can be opened, the air inlet quantity of the regeneration zone 11 can be reduced, so that the regeneration requirement of the rotating wheel can be met;
for carbon dioxide heat pump systems: the refrigerant carbon dioxide is changed into high-temperature gaseous carbon dioxide after being processed by the compressor 21, then enters the gas cooler 22 to exchange heat with the regeneration air to be heated, the regeneration air is heated, the high-temperature gaseous carbon dioxide releases heat to be in a liquid state, then is subjected to throttling treatment by the electronic expansion valve 25, is sequentially subjected to heating treatment by the first evaporator 23 and the second evaporator 24, becomes low-pressure gaseous carbon dioxide again, is subjected to gas-liquid separation by the gas-liquid separator 26, and the low-pressure carbon dioxide is sent into the compressor 21 to be subjected to compression treatment, so that circulation is realized.
In the whole process, the carbon dioxide heat pump provides a cold source and a heat source for the dehumidifier body, so that the combined supply of cold and heat is realized, the comprehensive energy efficiency is high, and the energy consumption is low; the design of the cold load and the hot load is based on the cold load, and the hot load can meet the change of desorption requirements of a regeneration zone by adjusting the air inlet quantity of the gas cooler.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The utility model provides a heat pump rotary dehumidifier which characterized in that, this heat pump rotary dehumidifier includes: the device comprises a dehumidifier body, a carbon dioxide heat pump system, a regeneration ventilation channel and a dehumidification ventilation channel;
the dehumidifier body comprises a regeneration zone arranged on the track of the regeneration ventilation channel and a treatment zone arranged on the track of the dehumidification ventilation channel;
the carbon dioxide heat pump system comprises a compressor, a gas cooler, a first evaporator and a second evaporator which are sequentially communicated, wherein the gas cooler is arranged on the air inlet side of the regeneration zone, the first evaporator is arranged on the air outlet side of the treatment zone, and the second evaporator is arranged on the air inlet side of the treatment zone.
2. The heat pump rotary dehumidifier of claim 1, wherein the carbon dioxide heat pump system further comprises an electronic expansion valve, a gas-liquid separator, and wherein the compressor, the gas cooler, the electronic expansion valve, the first evaporator, the second evaporator, and the gas-liquid separator are in sequential cyclic communication.
3. The heat pump rotary dehumidifier of claim 1, wherein the carbon dioxide heat pump system further comprises a first cold water coil assembly for use as a heat source for the first evaporator, the first cold water coil assembly comprising a first cold water coil capable of absorbing heat from dehumidified air that has been treated by the treatment zone and a first water pump disposed on the first cold water coil, a portion of the first cold water coil being disposed on a track of the dehumidification ventilation channel.
4. A heat pump rotary dehumidifier according to claim 1 or claim 3, wherein the carbon dioxide heat pump system further comprises a second cold water coil assembly for use as a heat source for the second evaporator, the second cold water coil assembly comprising a second cold water coil capable of absorbing heat from air to be dehumidified that is not treated by the treatment zone and a second water pump disposed on the second cold water coil, a portion of the second cold water coil being disposed on the locus of the dehumidification ventilation channel.
5. A heat pump rotary dehumidifier according to claim 1 or 3, further comprising a first primary filter and a secondary filter, wherein the first primary filter, the second cold water coil and the secondary filter are sequentially arranged, and the first primary filter and the secondary filter are respectively arranged on the track of the dehumidification and ventilation channel.
6. The heat pump rotary dehumidifier of claim 1, further comprising a second primary filter disposed on the locus of the regeneration vent passage on the air intake side of the gas cooler.
7. The heat pump rotary dehumidifier of claim 1, further comprising an electric heater disposed on a trajectory of the regeneration vent passage, the electric heater being located between the regeneration zone and the gas cooler.
8. The heat pump rotary dehumidifier of claim 7, further comprising a regeneration air inlet bypass duct and an air valve disposed on the regeneration air inlet bypass duct, wherein an inlet of the regeneration air inlet bypass duct and an outlet of the regeneration air inlet bypass duct are respectively in communication with the regeneration air passage, and wherein the inlet is located between the electric heater and the gas cooler, and the outlet is located on an air outlet side of the regeneration zone.
9. The heat pump rotary dehumidifier of claim 8, further comprising a control system, a temperature sensor disposed on the air outlet side of the gas cooler for monitoring the temperature of the regeneration air, the control system being communicatively coupled to the air valve, the temperature sensor, and the electric heater, respectively.
10. The heat pump rotary dehumidifier of claim 1, wherein the regeneration vent channel is disposed in parallel with the dehumidification vent channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202223025995.6U CN218915186U (en) | 2022-11-14 | 2022-11-14 | Heat pump rotary dehumidifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223025995.6U CN218915186U (en) | 2022-11-14 | 2022-11-14 | Heat pump rotary dehumidifier |
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| CN218915186U true CN218915186U (en) | 2023-04-25 |
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| CN202223025995.6U Active CN218915186U (en) | 2022-11-14 | 2022-11-14 | Heat pump rotary dehumidifier |
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