CN108224636A - A kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group - Google Patents
A kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group Download PDFInfo
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- CN108224636A CN108224636A CN201810004282.0A CN201810004282A CN108224636A CN 108224636 A CN108224636 A CN 108224636A CN 201810004282 A CN201810004282 A CN 201810004282A CN 108224636 A CN108224636 A CN 108224636A
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- solution
- low pressure
- dehumidifier
- generation cavity
- pressure generation
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1417—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1429—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
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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
Abstract
The present invention relates to a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group, including dehumidifier, solution precool heat exchanger device, low pressure generation cavity, low pressure condensation chamber, vapor communication pipe and Solutions Solution heat exchanger；It is connected between low pressure generation cavity and low pressure condensation chamber by vapor communication pipe；Evaporator is set in solution precool heat exchanger device, condenser is set in low pressure generation cavity；Condenser, throttle valve, evaporator and compressor are sequentially connected with composition heat pump system；Low pressure condensation chamber is connect with high temperature low-temperature receiver, and the bottom of low pressure condensation chamber is connect by condensing water valve with the external world；Dehumidifier forms solution circulation loop with low pressure generation cavity by solution circulation pump；Solution precool heat exchanger device is arranged in one section of solution circulation loop by low pressure generation cavity to dehumidifier；The side of Solutions Solution heat exchanger is arranged in one section of solution circulation loop by dehumidifier to low pressure generation cavity, and opposite side is arranged in one section of solution circulation loop by low pressure generation cavity to dehumidifier.
Description
Technical field
The present invention relates to a kind of Fresh air handling units, especially with regard to a kind of heat pump driven vacuum regeneration type solution dehumidification fresh air
Unit.
Background technology
The main task of air conditioning in residential buildings system is to meet comfort demand of the indoor occupant to humiture parameter at present,
Wherein air dewetting process is one of important link for building Indoor Thermal Environment.Mostly using condensation in existing Air-Conditioner dehumidification method
Air themperature is down to below dew point so that the water in air by dehumidification treatments mode using the standby low temperature chilled water of refrigeration mechanism
Segregation junction and realize the dehumidification treatments process to fresh air.But (it is less than the dew point temperature of air since the condensation temperature of needs is very low
Degree), causing the evaporating temperature of refrigeration machine reduces, so as to seriously affect the coefficient of performance of refrigeration machine.In addition, traditional dehumidification by condensation
Also there are wind pushing temperature is relatively low, reheating is needed to lead to energy waste under partial picture for mode.
Solution dehumidification mode is different from traditional dehumidification by condensation mode, is situated between using the salting liquid with hygroscopic nature as work
Matter is in direct contact carry out heat and mass, so as to fulfill the cool-down dehumidification process to fresh air by fresh air and solution.Solution dehumidification
Mode can efficiently meet air humidity process demand, it is no longer necessary to reheating, and multiclass low-temperature heat source can be used as solution
The energy source of concentrating regenerative due to its advantage in above-mentioned energy saving, raising indoor air quality etc., exists in recent years
China has been more and more widely used.
Solution reclaiming process is the critical process of solution dehumidifying air-conditioning system, and caloic exchange process directly affects entire sky
The performance of adjusting system.It is relatively conventional solution regeneration using regeneration air and solution direct contact heat transfer mass transfer, it is common
Regeneration air include outdoor fresh air and indoor exhaust wind.Such as patent CN101846369A proposes a kind of heat recovery solution and removes
Wet Fresh air handling units, the unit allow dilute solution to be in direct contact with indoor exhaust wind by gas-liquid direct contacted spraying module, real
The regeneration function of existing unit solution.However, it is the regenerated mode of solution to be contacted above by regeneration air with solution, it is on the one hand right
The air draft tissue of building claims, and on the other hand increases the floor space and total volume of solution dehumidifying air-conditioning system unit.
Therefore, from the prior art, still lack regenerated for weak solution in liquid desiccant air conditioning without using regeneration air
Independent regenerating unit.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide a kind of not using the heat and mass of regeneration air and solution as solution
The heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group of regeneration.
To achieve the above object, the present invention uses following technical scheme：A kind of heat pump driven vacuum regeneration type solution removes
Wet Fresh air handling units, it is characterised in that：Connect including dehumidifier, solution precool heat exchanger device, low pressure generation cavity, low pressure condensation chamber, steam
Siphunculus and solution-solution heat exchanger；It is connected between the low pressure generation cavity and low pressure condensation chamber by the vapor communication pipe；
Evaporator is set in the solution precool heat exchanger device, condenser is set in the low pressure generation cavity；Condenser, throttle valve, steaming
Hair device and compressor are sequentially connected with composition heat pump system；The low pressure condensation chamber is connect with high temperature low-temperature receiver, the low pressure condensation chamber
Bottom by condense water valve with the external world connect；The dehumidifier forms solution with the low pressure generation cavity by solution circulation pump
Circulation loop；The solution precool heat exchanger device is arranged in be recycled back to by one section of solution of the low pressure generation cavity to the dehumidifier
On the road；The side of the solution-solution heat exchanger is arranged in be followed by one section of solution of the dehumidifier to the low pressure generation cavity
In loop back path, opposite side is arranged in one section of solution circulation loop by the low pressure generation cavity to the dehumidifier.
Occur on one section of solution circulation loop by the dehumidifier to the low pressure generation cavity and by the low pressure
Solvent valve is both provided on chamber to one section of solution circulation loop of the dehumidifier.
The dehumidifier uses cross-flow dehumidifier or adverse current dehumidifier.
A kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group, it is characterised in that：It is pre- including dehumidifier, solution
Cold heat exchanger, low pressure generation cavity, low pressure condensation chamber, vapor communication pipe and solution-solution heat exchanger；The low pressure generation cavity and low
It is connected between pressure condensation chamber by the vapor communication pipe；The solution precool heat exchanger device is connect with high temperature low-temperature receiver；Described low
Evaporator is set in pressure condensation chamber, condenser is set in the low pressure generation cavity；Condenser, throttle valve, evaporator and compression
Machine is sequentially connected with composition heat pump system；The bottom of the low pressure condensation chamber is connect by condensing water valve with the external world；The dehumidifier
Solution circulation loop is formed by solution circulation pump with the low pressure generation cavity；The solution precool heat exchanger device is arranged in by described
On low pressure generation cavity to one section of solution circulation loop of the dehumidifier；The side of the solution-solution heat exchanger be arranged in by
On the dehumidifier to one section of solution circulation loop of the low pressure generation cavity, opposite side be arranged in by the low pressure generation cavity to
In one section of solution circulation loop of the dehumidifier.
Air precooling surface cooler is set in the front of the dehumidifier, and the air precooling surface cooler connects with high temperature low-temperature receiver
It connects.
The present invention has the following advantages due to taking above technical scheme：The present invention is with the solution with moisture pick-up properties
For working media, solution dehumidification processing system, heat pump system, vacuum flashing system are combined, it is regenerated to realize no air draft
Function.In addition, the heat of the cold of evaporator and condenser has obtained effective utilization, the cold of evaporator in heat pump system
For reducing solution temperature so as to improve its dehumidifying effect, the whole heat source as solution concentrating regenerative of the heat of condenser.
Description of the drawings
Fig. 1 is the operation principle schematic diagram when embodiment of the present invention one uses cross-flow dehumidifier；
Fig. 2 is the operation principle schematic diagram when embodiment of the present invention one uses adverse current dehumidifier；
Fig. 3 is the operation principle schematic diagram when embodiment of the present invention two uses cross-flow dehumidifier；
Fig. 4 is the operation principle schematic diagram when embodiment of the present invention two uses adverse current dehumidifier；
Fig. 5 is the operation principle schematic diagram of the embodiment of the present invention three.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one：
As shown in Figure 1 and Figure 2, the present embodiment Fresh air handling units include dehumidifier 1, solution precool heat exchanger device 2, low pressure generation cavity
3rd, low pressure condensation chamber 4, vapor communication pipe 5 and solution-solution heat exchanger 6.Wherein, between low pressure generation cavity 3 and low pressure condensation chamber 4
It is connected by vapor communication pipe 5.Evaporator 7 in solution precool heat exchanger device 2 is set, condenser is set in low pressure generation cavity 3
8.Condenser 8, throttle valve 10, evaporator 7 and compressor 9 are sequentially connected with composition heat pump system.Low pressure condensation chamber 4 and high temperature low-temperature receiver
Connection, the bottom of low pressure condensation chamber 4 are connect by condensing water valve 11 with the external world.Dehumidifier 1 is followed with low pressure generation cavity 3 by solution
Ring pump 12 forms solution circulation loop.Solution precool heat exchanger device 2 is arranged in one section of solution by low pressure generation cavity 3 to dehumidifier 1
On circulation loop.The side of solution-solution heat exchanger 6 is arranged in be recycled back to by one section of solution of dehumidifier 1 to low pressure generation cavity 3
On the road, opposite side is arranged in one section of solution circulation loop by low pressure generation cavity 3 to dehumidifier 1.
In above-described embodiment, sent out in one section of solution circulation loop by dehumidifier 1 to low pressure generation cavity 3 and by low pressure
Solvent valve 13 is both provided on raw chamber 3 to one section of solution circulation loop of dehumidifier 1.
In above-described embodiment, cross-flow dehumidifier (as shown in Figure 1) or adverse current dehumidifier can be used (such as Fig. 2 institutes in dehumidifier 1
Show).
The operation principle of the present invention is as follows：(figure cathetus represents the dehumidification solution of circulated sprinkling, empty as shown in Figure 1 and Figure 2
Line represents the refrigeration working medium of heat pump system, and chain-dotted line represents high temperature low-temperature receiver), outdoor fresh air enters dehumidifier 1, with spray and under
Concentrated solution is in direct contact carry out heat and mass transfer process, and the air after cooling, dehumidification treatments is sent directly into interior, is connect with air
The weak solution that concentration reduces after touch will enter low pressure generation cavity 3 via solution circulation pump 12, solution-solution heat exchanger 6.In low pressure
In generation cavity 3, weak solution sprays and the lower progress heat exchange of condenser 8 with heat pump system, and the moisture in solution is by thermal evaporation
As water vapour, enter low pressure condensation chamber 4 via vapor communication pipe 5.In low pressure condensation chamber 4, water vapour and high temperature low-temperature receiver into
Row heat exchange, condensation become condensed water, and the external world is drained into eventually by condensation water valve 11.What is flowed out in low pressure generation cavity 3 is dense molten
Liquid is successively handled via solution circulation pump 12, solution-solution heat exchanger 6, solvent valve 13, solution precool heat exchanger device 2, finally again
It completes to recycle into dehumidifier 1.Heat pump system (condenser 8, compressor 9, evaporator 7, throttle valve 10) in the Fresh air handling units
Evaporator 7 will enter the concentrated solution of dehumidifier 1 for being pre-chilled, the heat exhaust of condenser 8 is for providing in low pressure generation cavity 3
Heat needed for solution evaporation process.This Fresh air handling units is using the solution with moisture pick-up properties as working media, at solution dehumidification
Reason system, heat pump system, vacuum flashing system are combined, and realize the regenerated function of no air draft.In addition, it is evaporated in heat pump system
The cold of device and the heat of condenser have obtained effective utilization, and the cold of evaporator is for reducing solution temperature so as to improve
Its dehumidifying effect, the whole heat source as solution concentrating regenerative of the heat of condenser.
Embodiment two：
As shown in Figure 3, Figure 4, the present embodiment and embodiment one the difference lies in：Evaporator 7 in heat pump system is set
It puts in low pressure condensation chamber 4, substitutes original high temperature low-temperature receiver.And solution precool heat exchanger device 2 is connect with high temperature low-temperature receiver, is substituted original
Evaporator.
The operation principle of the present embodiment is similar to embodiment one, differs only in：Communicating pipe 5 low pressure is entered via evaporation
Vapor in condensation chamber 4 carries out heat exchange, so as to condense as condensed water with the cold of evaporator 7.Solution precool heat exchanger
Device 2 reduces solution temperature so as to improve the dehumidifying effect of solution by high temperature low-temperature receiver.
Embodiment three：
As shown in figure 5, the present embodiment and embodiment two the difference lies in：It is pre- that air is added in the front of dehumidifier 1
Cold surface cooler 14, air precooling surface cooler 14 are also connect with high temperature low-temperature receiver.Outdoor fresh air is first dropped via air precooling surface cooler 14
Wen Hou, then be passed through dehumidifier 1 and carry out cool-down dehumidification.
The present invention is only illustrated with above-described embodiment, and structure, installation position and its connection of each component are all can have
Changed, on the basis of technical solution of the present invention, all improvement carried out according to the principle of the invention to individual part and equivalent
Transformation, should not exclude except protection scope of the present invention.
Claims (7)
1. a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group, it is characterised in that：It is pre-chilled including dehumidifier, solution
Heat exchanger, low pressure generation cavity, low pressure condensation chamber, vapor communication pipe and solution-solution heat exchanger；The low pressure generation cavity and low pressure
It is connected between condensation chamber by the vapor communication pipe；Evaporator is set in the solution precool heat exchanger device, in the low pressure
Condenser is set in generation cavity；Condenser, throttle valve, evaporator and compressor are sequentially connected with composition heat pump system；The low pressure
Condensation chamber is connect with high temperature low-temperature receiver, and the bottom of the low pressure condensation chamber is connect by condensing water valve with the external world；The dehumidifier with
The low pressure generation cavity forms solution circulation loop by solution circulation pump；The solution precool heat exchanger device is arranged in by described low
It presses on generation cavity to one section of solution circulation loop of the dehumidifier；The side of the solution-solution heat exchanger is arranged in by institute
It states on dehumidifier to one section of solution circulation loop of the low pressure generation cavity, opposite side is arranged in by the low pressure generation cavity to institute
It states in one section of solution circulation loop of dehumidifier.
2. a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group as described in claim 1, it is characterised in that：
By being removed described in one section of solution circulation loop of the dehumidifier to the low pressure generation cavity and by the low pressure generation cavity
Solvent valve is both provided in one section of solution circulation loop of wet device.
3. a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group as described in claim 1, it is characterised in that：Institute
Dehumidifier is stated using cross-flow dehumidifier or adverse current dehumidifier.
4. a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group, it is characterised in that：It is pre-chilled including dehumidifier, solution
Heat exchanger, low pressure generation cavity, low pressure condensation chamber, vapor communication pipe and solution-solution heat exchanger；The low pressure generation cavity and low pressure
It is connected between condensation chamber by the vapor communication pipe；The solution precool heat exchanger device is connect with high temperature low-temperature receiver；In the low pressure
Evaporator in condensation chamber is set, condenser is set in the low pressure generation cavity；Condenser, throttle valve, evaporator and compressor
It is sequentially connected with composition heat pump system；The bottom of the low pressure condensation chamber is connect by condensing water valve with the external world；The dehumidifier with
The low pressure generation cavity forms solution circulation loop by solution circulation pump；The solution precool heat exchanger device is arranged in by described low
It presses on generation cavity to one section of solution circulation loop of the dehumidifier；The side of the solution-solution heat exchanger is arranged in by institute
It states on dehumidifier to one section of solution circulation loop of the low pressure generation cavity, opposite side is arranged in by the low pressure generation cavity to institute
It states in one section of solution circulation loop of dehumidifier.
5. a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group as claimed in claim 4, it is characterised in that：
By being removed described in one section of solution circulation loop of the dehumidifier to the low pressure generation cavity and by the low pressure generation cavity
Solvent valve is both provided in one section of solution circulation loop of wet device.
6. a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group as claimed in claim 4, it is characterised in that：Institute
Dehumidifier is stated using cross-flow dehumidifier or adverse current dehumidifier.
7. a kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group as claimed in claim 4, it is characterised in that：
The front setting air precooling surface cooler of the dehumidifier, the air precooling surface cooler are connect with high temperature low-temperature receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004282.0A CN108224636A (en) | 2018-01-03 | 2018-01-03 | A kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004282.0A CN108224636A (en) | 2018-01-03 | 2018-01-03 | A kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group |
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| Publication Number | Publication Date |
|---|---|
| CN108224636A true CN108224636A (en) | 2018-06-29 |
Family
ID=62642730
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810004282.0A Pending CN108224636A (en) | 2018-01-03 | 2018-01-03 | A kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group |
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Cited By (4)
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| CN109629206A (en) * | 2019-02-18 | 2019-04-16 | 珠海格力电器股份有限公司 | The operation method of drying equipment and the drying equipment |
| CN110986486A (en) * | 2019-11-07 | 2020-04-10 | 浙江工业大学 | Closed cycle drying system based on two-stage solution dehumidification |
| CN111947444A (en) * | 2020-07-24 | 2020-11-17 | 浙江工业大学 | Closed cycle drying system based on open absorption heat pump |
| CN111947443A (en) * | 2020-07-24 | 2020-11-17 | 浙江工业大学 | Closed cycle drying system of open absorption heat pump-MVR technical coupling |
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| CN110986486B (en) * | 2019-11-07 | 2021-07-30 | 浙江工业大学 | Closed cycle drying system based on two-stage solution dehumidification |
| CN111947444A (en) * | 2020-07-24 | 2020-11-17 | 浙江工业大学 | Closed cycle drying system based on open absorption heat pump |
| CN111947443A (en) * | 2020-07-24 | 2020-11-17 | 浙江工业大学 | Closed cycle drying system of open absorption heat pump-MVR technical coupling |
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