CN107270426A - A kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system - Google Patents
A kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system Download PDFInfo
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- CN107270426A CN107270426A CN201710416723.3A CN201710416723A CN107270426A CN 107270426 A CN107270426 A CN 107270426A CN 201710416723 A CN201710416723 A CN 201710416723A CN 107270426 A CN107270426 A CN 107270426A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 27
- 230000008859 change Effects 0.000 title claims abstract description 5
- 230000008676 import Effects 0.000 claims abstract description 31
- 238000007791 dehumidification Methods 0.000 claims abstract description 25
- 230000008929 regeneration Effects 0.000 claims abstract description 15
- 238000011069 regeneration method Methods 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000011282 treatment Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000004087 circulation Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
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
- 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
-
- 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
- F24F2003/1458—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 using regenerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/02—System or Device comprising a heat pump as a subsystem, e.g. combined with humidification/dehumidification, heating, natural energy or with hybrid system
- F24F2203/026—Absorption - desorption cycle
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
Abstract
A kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system, including solution dehumidification regeneration cycle system and heat pump circulating system.Solution dehumidification regeneration cycle system includes the first dehumidifier, the second dehumidifier, regenerator, the first blower fan, solution heat exchanger and solution cooler, first dehumidifier, the second dehumidifier common regenerator, first blower fan connects the first dehumidifier, the air outlet of first dehumidifier is connected with the air inlet of the second dehumidifier, the import of the first dehumidifier of outlet access of solution cooler；Heat pump circulating system includes evaporator, compressor, solution condenser, aerial condenser, throttling arrangement and the second blower fan, the outlet of solution condenser is connected to the import of the regenerator, and the air inlet of aerial condenser is provided with the second blower fan, and air outlet connects the air inlet of the regenerator.After the system, the multidomain treat-ment of the hot humidity load of air is realized, condensation heat gets the efficient use, system entirety efficiency level is greatly improved.
Description
Technical field
The present invention relates to the air-conditioning system that a kind of heat pump is mutually combined with solution dehumidification regeneration cycle, belong to aerial temperature and humidity tune
Section and refrigerated air-conditioning system design and manufacturing technology field.
Background technology
With continuous improvement of the people for building hot comfort requirement, the energy consumption for building air conditioning equipment is also increasingly
Increase, however existing air-conditioning equipment in terms of the hot humidity load processing of air there are still not small defect, so exploitation is energy-saving
The demand of air-conditioning is more and more obvious.In recent years, humiture independent process air-conditioning as a kind of new air-conditioning theory just by more
Come more extensive concern and research.The humidity load of air is handled using dehumidification solution, air-conditioning system can be effectively improved
Used sink temperature, so as to reach the purpose of energy-conservation.At the same time, dehumidification solution also has sterilizing, filtering PM2.5
The effects such as, therefore liquid desiccant air conditioning plays more and more important in building energy-saving renovation and indoor environment comprehensive processing method
Effect.
Heat pump driven liquid desiccant air conditioning is the most frequently used a kind of form in humiture independent treating air-conditioning system, and it is adopted
Cold is provided for dehumidifying circulation with evaporator in heat pump cycle, while condensation heat can also supply the weak solution after dehumidifying as thermal source
For regenerating.This kind of system can realize effective utilization of cold and hot amount, and relatively conventional vapour compression refrigeration system its energy
Consumption also greatly lowers.But heat pump driven solution dehumidifying air-conditioning system still has some shortcomings at this stage：1) dehumidifier, again
Heat between raw device, evaporator and condenser is difficult to Dynamic Matching, when the load of air-treatment changes, system
Condensation heat may unnecessary or less than solution regenerate required heat；2) processing of such system to fresh air is mostly to use one-level
Cooling and dehumidifying, the fresh air of the high water capacity of high temperature is directly handled using the solution of low temperature, and the air of the high water capacity of high temperature originally can be with
Handled using normal temperature solution, therefore the thermal procession has the waste of effective cold.
The optimization design of system flow and air handling scheme is carried out to heat pump driven solution dehumidifying air-conditioning system, for
Further improve its efficiency and maintain the stable operation of system significant.
The content of the invention
Goal of the invention：It is an object of the invention to provide a kind of new heat pump driven solution dehumidifying air-conditioning system, pass through
Multidomain treat-ment is carried out to the hot humidity load of fresh air using different temperatures interval dehumidification solution, to realize the efficient profit of various low-temperature receivers
With so as to overcome energy waste problem of the existing dehumidifier/air-conditioning system in the presence of the hot humidity load processing procedure of air, simultaneously
Ensure the stable operation of the regeneration efficiency and system of weak solution after dehumidifying.
Technical scheme：To achieve these goals, the present invention is achieved using following technical scheme：
One kind of the present invention is heat pump driven to become solution temperature two-stage dehumidifier/air-conditioning system, including solution dehumidification regeneration
The circulatory system and heat pump circulating system, the solution dehumidification regeneration cycle system include the first dehumidifier, the second dehumidifier, regeneration
Device, the first blower fan, solution heat exchanger and solution cooler, first dehumidifier, the second dehumidifier share the regenerator,
First fan outlet connects the air inlet of first dehumidifier, the air outlet of first dehumidifier and described second
The air inlet of dehumidifier is connected, and the taphole of the solution cooler accesses the top solution inlet port of first dehumidifier；
The heat pump includes evaporator, compressor, solution condenser, aerial condenser, throttling arrangement and the second blower fan, described molten
The solution of liquid condensing device brings out the top solution spraying import that mouth is connected to the regenerator, the air inlet of the aerial condenser
Place is provided with second blower fan, and air outlet connects the air inlet of the regenerator.
Further, the taphole of the evaporator accesses the top solution inlet port of second dehumidifier.
Further, the bottom of first dehumidifier is provided with two tapholes, and one outlet is connected by solution line
The import of the first dehumidification solution pump is connected to, is set between the import of the first dehumidification solution pump and the outlet of first dehumidifier
There is the first solvent valve；Another exports the weak solution end import that solution heat exchanger is connected to by solution line, the solution heat
The second solvent valve is provided between the weak solution end import of exchanger and the outlet of first dehumidifier.
Further, the bottom of second dehumidifier is provided with two tapholes, and one outlet is connected by solution line
The import of the second dehumidification solution pump is connected to, is set between the import of the second dehumidification solution pump and the outlet of second dehumidifier
There is the 3rd solvent valve；Another exports the weak solution end import that the solution heat exchanger is connected to by solution line, described molten
The 4th solvent valve is provided between the weak solution end import of liquid heat exchanger and the outlet of second dehumidifier.
Further, the regenerator bottoms are provided with two tapholes, and one of outlet is connected by solution line
To the concentrated solution import of the solution heat exchanger, exit is provided with the 6th solvent valve, and another outlet is connected by solution line
The solution inlet port of actified solution pump is connected to, exit is provided with the 7th solvent valve；
Further, the import of the weak solution port of export pipeline connection actified solution pump of the solution heat exchanger, and its
Concentrated solution port of export pipeline is divided into two-way, and tie point is connected to the second dehumidifying pump, and the second branch road is connected to the first dehumidifying pump, the
Two branch roads are provided with the 5th solvent valve.
Further, the compressor is sequentially connected in series the solution condenser, aerial condenser, throttling arrangement and evaporation
Device joins back the compression mechanism into heat pump circulating system again.
Beneficial effect：
1st, air handling process of the invention becomes the tupe of solution temperature, the air of the high water capacity of high temperature using two-stage
Using the progress first order processing of normal-temp.-dehumidifying solution, the air of the water capacity such as middle middle benefit gas is carried out using the dehumidification solution of lower temperature
The second level is handled, and this kind of method realizes the thermodynamic optimization of air handling process, and rationally make use of the cold of different warm areas
Source, reduces system energy consumption.
2nd, the condensation heat of heat pump circulating system of the invention uses two stages for the treatment of model, sets the solution of series connection to condense respectively
Device and aerial condenser, are heated, favorably while effective processing of condensation heat is ensured to actified solution and regeneration air
Solution regeneration efficiency in raising regenerator.
3rd, two are respectively provided between solution self-loopa, three between dehumidifier and regenerator and are also provided with dense weak solution and hand over
Circulation is changed, this is provided with beneficial to cold and hot flux matched between heat pump and solution system in system, can make the operation of system
Duty parameter is more stablized.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1 is the first dehumidifier, and 2 be the second dehumidifier, and 3 be the first blower fan, and 4 be solution cooler, and 5 remove for first
Wet solution pump, 6 be the first solvent valve, and 7 be the second solvent valve, and 8 be the 3rd solvent valve, and 9 be the 4th solvent valve, and 10 be the second dehumidifying
Solution pump, 11 be the 5th solvent valve, and 12 be solution heat exchanger, and 13 be evaporator, and 14 be compressor, and 15 be solution condenser,
16 be aerial condenser, and 17 be throttling arrangement, and 18 be the second blower fan, and 19 be regenerator, and 20 be the 6th solvent valve, and 21 be the 7th molten
Liquid valve, 22 be actified solution pump.
Embodiment
Below in conjunction with the accompanying drawings 1 and embodiment the present invention is further detailed explanation：
As shown in figure 1, a kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system of the present invention, including solution are removed
Wet regeneration cycle system and heat pump circulating system, the solution dehumidification regeneration cycle system dehumidify including the first dehumidifier 1, second
Device 2, regenerator 19, the first blower fan 3, solution heat exchanger 12 and solution cooler 4, first dehumidifier 1, the second dehumidifier
2 share the regenerator 19, and the air outlet of the first blower fan 3 connects the air inlet of first dehumidifier 1, first dehumidifying
The air outlet of device 1 is connected with the air inlet of second dehumidifier 2, the taphole of the solution cooler 4 access described the
The top solution inlet port of one dehumidifier 1；It is cold that the heat pump includes evaporator 13, compressor 14, solution condenser 15, air
Condenser 16, the blower fan 18 of throttling arrangement 17 and second, the solution of the solution condenser 15 brings out mouth and is connected to the regenerator 19
Top solution spraying import, the air inlet of the aerial condenser 16 is provided with second blower fan 18, air outlet connection institute
State the air inlet of regenerator 19.The taphole of the evaporator 13 accesses the top solution inlet port of second dehumidifier 2.
Normal temperature solution is used in first dehumidifier 1, solution is cooled down by outside 30 DEG C or so cooling water, solution
The taphole of cooler 4 accesses the top solution inlet port of the first dehumidifier 1, the bottom of the first dehumidifier 1 be provided with two it is molten
Liquid is exported, and one outlet is connected to the import of the first dehumidification solution pump 5 by solution line, between be used for provided with the first solvent valve 6
The liquid inventory of the first dehumidification solution self-loopa is adjusted, another outlet is connected to the dilute of solution heat exchanger 12 by solution line
The import of solution end, between be used to adjusting the first dehumidifier 1 provided with the second solvent valve 7 and be transported to the solution of dense weak solution exchange cycles
Flow.
The cryogenic fluid used in second dehumidifier 2, has for handling temperature and water capacity after first order dehumidification cooling
The air reduced, now solution cooled down using evaporator 13, the taphole of evaporator 13 accesses the second dehumidifier 2
Top solution inlet port, the bottom of the second dehumidifier 2 is provided with two tapholes, and one outlet is connected to second by solution line
The import of dehumidification solution pump 10, between provided with the 3rd solvent valve 8 be used for control the second dehumidification solution self-loopa liquid inventory；Separately
One outlet is connected to the weak solution end import of solution heat exchanger 12 by solution line, between be used for provided with the 4th solvent valve 9
The second dehumidifier 2 is controlled to be transported to the liquid inventory of dense weak solution exchange cycles.
A regenerator 19 is provided only with the system, its bottom is provided with two tapholes, one of outlet connection
To the concentrated solution import of solution heat exchanger 12, in the pipeline provided with the 6th solvent valve 20 be used for adjust regenerator 19 be transported to it is dense
Actified solution amount in weak solution exchange cycles；Another outlet is connected to actified solution pump 22, between be provided with the 7th solvent valve
21 are used to adjust the liquid inventory for regenerating self-loopa.
The import of the weak solution port of export pipeline connection actified solution pump 22 of the solution heat exchanger 12 of the system, and its
Concentrated solution port of export pipeline is divided into two-way, and tie point is connected to the second dehumidifying pump 10, and the second branch road is connected to the first dehumidifying pump
5；Second branch road is provided with the 5th solvent valve 11, and the 5th solvent valve 11, which can be adjusted, is assigned to tie point and the second branch road again
Raw amount of solution.
The compressor 14 is sequentially connected in series the solution condenser 15, aerial condenser 16, throttling arrangement 17 and evaporation
Device 13 joins back the compressor 14 and constitutes heat pump circulating system again.
By adjusting first solvent valve 6, the second solvent valve 7, the 3rd solvent valve 8, the 4th solvent valve 9, the 6th solution
The aperture of the solvent valve 21 of valve 20 and the 7th, can control the first dehumidification solution self-loopa, the second dehumidification solution self-loopa, regeneration molten
Liquid self-loopa and the ratio of dense weak solution exchange cycles；Dense weak solution exchange cycles can be adjusted by adjusting the 5th solvent valve 11
Solution is assigned to the solution proportion of first and second grades of dehumidifying circulations after middle regeneration.
Although the foregoing describing the embodiment of the present invention, those skilled in the art should be appreciated that this
It is merely illustrative of, various changes or modifications can be made to present embodiment, without departing from the principle and essence of the present invention,
Protection scope of the present invention is only limited by the claims that follow.
Claims (7)
1. a kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system, including solution dehumidification regeneration cycle system and heat pump
The circulatory system, it is characterised in that：The solution dehumidification regeneration cycle system include the first dehumidifier (1), the second dehumidifier (2),
Regenerator (19), the first blower fan (3), solution heat exchanger (12) and solution cooler (4), first dehumidifier (1), second
Dehumidifier (2) shares the regenerator (19), and the first blower fan (3) air outlet connects the air intake of first dehumidifier (1)
Mouthful, the air outlet of first dehumidifier (1) is connected with the air inlet of second dehumidifier (2), the solution cooler (4)
Taphole access the top solution inlet port of first dehumidifier (1)；The heat pump circulating system include evaporator (13),
Compressor (14), solution condenser (15), aerial condenser (16), throttling arrangement (17) and the second blower fan (18), the solution
The solution of condenser (15) brings out the top solution spraying import that mouth is connected to the regenerator (19), the aerial condenser
(16) air inlet is provided with second blower fan (18), and aerial condenser (16) air outlet connects the regenerator (19)
Air inlet.
2. one kind according to claim 1 is heat pump driven to become solution temperature two-stage dehumidifier/air-conditioning system, it is characterised in that
The taphole of the evaporator (13) accesses the top solution inlet port of second dehumidifier (2).
3. one kind according to claim 1 is heat pump driven to become solution temperature two-stage dehumidifier/air-conditioning system, it is characterised in that
The bottom of first dehumidifier (1) is provided with two tapholes, and it is molten that one outlet is connected to the first dehumidifying by solution line
The import of liquid pump (5), provided with the between the import of the first dehumidification solution pump (5) and the outlet of first dehumidifier (1)
One solvent valve (6)；Another exports the weak solution end import that the solution heat exchanger (12) is connected to by solution line, described
The second solvent valve (7) is provided between the weak solution end import of solution heat exchanger (12) and the outlet of first dehumidifier (1).
4. one kind according to claim 1 is heat pump driven to become solution temperature two-stage dehumidifier/air-conditioning system, it is characterised in that
The bottom of second dehumidifier (2) is provided with two tapholes, and it is molten that one outlet is connected to the second dehumidifying by solution line
The import of liquid pump (10), is provided between the import of the second dehumidification solution pump (10) and the outlet of second dehumidifier (2)
3rd solvent valve (8)；Another exports the weak solution end import that the solution heat exchanger (12) is connected to by solution line, institute
State and the 4th solvent valve is provided between the weak solution end import of solution heat exchanger (12) and the outlet of second dehumidifier (2)
(9)。
5. one kind according to claim 1 is heat pump driven to become solution temperature two-stage dehumidifier/air-conditioning system, it is characterised in that
Regenerator (19) bottom is provided with two tapholes, and one of outlet is connected to the solution heat by solution line and handed over
The concentrated solution import of parallel operation (12), regenerator (19) exit is provided with the 6th solvent valve (20), and another outlet passes through molten
Liquid pipe road is connected to the solution inlet port of actified solution pump (22), and regenerator (19) exit is provided with the 7th solvent valve (21).
6. one kind according to claim 1 is heat pump driven to become solution temperature two-stage dehumidifier/air-conditioning system, it is characterised in that
The import of the weak solution port of export pipeline connection actified solution pump (22) of the solution heat exchanger (12), and its concentrated solution is exported
End pipe road is divided into two-way, and tie point is connected to the second dehumidifying pump (10), and the second branch road is connected to the first dehumidifying pump (5), second
Branch road is provided with the 5th solvent valve (11).
7. one kind according to claim 1 is heat pump driven to become solution temperature two-stage dehumidifier/air-conditioning system, it is characterised in that
The compressor (14) is sequentially connected in series the solution condenser (15), aerial condenser (16), throttling arrangement (17) and evaporation
Device (13) joins back the compressor (14) and constitutes heat pump circulating system again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416723.3A CN107270426A (en) | 2017-06-06 | 2017-06-06 | A kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416723.3A CN107270426A (en) | 2017-06-06 | 2017-06-06 | A kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system |
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| CN107270426A true CN107270426A (en) | 2017-10-20 |
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|---|---|---|---|
| CN201710416723.3A Pending CN107270426A (en) | 2017-06-06 | 2017-06-06 | A kind of heat pump driven change solution temperature two-stage dehumidifier/air-conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974146A (en) * | 2019-03-19 | 2019-07-05 | 东南大学 | For the solution dehumidification system and operation method of the dehumidifying of freezer hallway |
| CN110375397A (en) * | 2019-08-13 | 2019-10-25 | 河南中瑞制冷科技有限公司 | Heat pump solution and runner combined type depth dehumidification system and its working method |
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| CN109974146B (en) * | 2019-03-19 | 2021-02-26 | 东南大学 | Solution dehumidification system for refrigeration house through-the-hall dehumidification and operation method |
| CN110375397A (en) * | 2019-08-13 | 2019-10-25 | 河南中瑞制冷科技有限公司 | Heat pump solution and runner combined type depth dehumidification system and its working method |
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Application publication date: 20171020 |