CN1333206C - Heat pump driven energy storage type solution dehumidifying air-conditioning system - Google Patents
Heat pump driven energy storage type solution dehumidifying air-conditioning system Download PDFInfo
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- CN1333206C CN1333206C CNB2005100291402A CN200510029140A CN1333206C CN 1333206 C CN1333206 C CN 1333206C CN B2005100291402 A CNB2005100291402 A CN B2005100291402A CN 200510029140 A CN200510029140 A CN 200510029140A CN 1333206 C CN1333206 C CN 1333206C
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- heat pump
- regenerator
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 25
- 238000004146 energy storage Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000007791 dehumidification Methods 0.000 claims description 33
- 230000008929 regeneration Effects 0.000 claims description 16
- 238000011069 regeneration method Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000011217 control strategy Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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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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- Central Air Conditioning (AREA)
Abstract
The present invention discloses an energy storage type solution dehumidifying air conditioning system which is driven by a heat pump and comprises a heat pump, a fresh air dehumidifier, a solution regenerator, a cooling tower and a solution storage tank which is arranged on a solution loop arranged between the fresh air dehumidifier and the solution regenerator, wherein the heat pump is a water cooled cold water heat pump of which the cold water end is connected with the end of an indoor air conditioner and the hot water end is connected with the solution regenerator or the cooling tower; a reversing valve is arranged on a hot water pipe which is arranged among the solution regenerator, the cooling tower and the heat pump; the solution storage tank comprises a dilute solution tank and a concentrated solution tank. Through system design, redundant heat is stored as chemical energy in the solution storage tank; by adopting a control strategy with time share operation and duplex condition switching, the present invention fully solves the problem that when the heat pump drives the regenerator, the heat consumption is not matched with the cold output force of the system, effectively solves the problem that the heat and the cold of the solution dehumidifying system are no matched, raises the comprehensive energy efficiency ratio of the system, and realizes the heat and humidity independent control of the air conditioning system.
Description
Technical field
The invention belongs to air-conditioning technical field, liquid desiccant air conditioning field especially, specifically a kind of energy storage type solution dehumidifying air-conditioning system.
Background technology
Solution dehumidifying air-conditioning system based on the wet independent control of heat has many good qualities.At first, it can effectively kill airborne bacterium, removes dust and other nuisance, has avoided coagulating the mould contamination that water surface caused.Secondly, it is the air-conditioning system of a direct current of brand-new wind, and this makes indoor air quality be significantly improved.Simultaneously, this air-conditioning system has very important meaning for building energy conservation.
Present solution dehumidifying air-conditioning system comprises fresh air dehumidification device and solution regenerator, and wherein the driving heat source of regenerator can be selected the waste heat of equipment such as municipal heating systems hot water, conventional heat pump condenser.The only northerly most of city of municipal administration heat supply network, city has, and the hot water temperature is difficult for regulating.Adopt heat pump driven solution dehumidification system to be fresh air conditioner-mechanical at present, it utilizes the condenser heat of conventional heat pump condenser directly to drive solution regeneration, evaporimeter then is used to the latent heat that discharges in the cooling and dehumidifying process, but be not easy to solve the unmatched problem of cold and hot amount, simultaneously because it only handles new wind, this system also needs to join a handpiece Water Chilling Units again and is used for removing the building sensible heat load, and the equipment of whole system is complicated.
Therefore, solve the cold and hot mismatch problem of solution dehumidification system, designing the high dehumidifier/air-conditioning system of simple, easily manufactured, the comprehensive efficiency of a kind of device structure becomes the technical barrier that those skilled in the art press for solution.
Summary of the invention
Technical problem to be solved by this invention is to propose a kind of heat pump driven energy storage type solution dehumidifying air-conditioning system, to overcome the above-mentioned defective that prior art exists.
The technical scheme of technical solution problem of the present invention is as follows:
A kind of heat pump driven energy storage type solution dehumidifying air-conditioning system, it is characterized in that, system comprises heat pump, fresh air dehumidification device, solution regenerator, cooling tower, is arranged on the fluid reservoir on the solution loop between fresh air dehumidification device and the solution regenerator, described heat pump is a water-cooled cold water heat pump, its cold water end links to each other with room conditioning is terminal, the hot water end links to each other with solution regenerator or cooling tower, on the hot-water line between heat pump and the solution regenerator reversal valve is set, on the hot-water line between heat pump and the cooling tower reversal valve is set;
Described fluid reservoir comprises weak solution jar and concentrated solution jar, and a high level switch A and a low liquid-level switch B are set in the described weak solution jar; Described concentrated solution jar one end connects the taphole of solution regenerator, the other end connects the solution inlet of fresh air dehumidification device by the concentrated solution pump, described weak solution jar one end connects the taphole of fresh air dehumidification device, the other end connects the solution inlet of solution regenerator by the weak solution pump, concentrated solution is delivered to the fresh air dehumidification device from the concentrated solution jar, the weak solution that forms after the moisture absorption is from flowing back in the weak solution jar, weak solution in the weak solution jar is sent to and concentrates regeneration in the regenerator, and the concentrated solution overflow after the regeneration is got back in the concentrated solution jar.
The present invention stores unnecessary heat mode with chemical energy in liquid storage is irritated by system's design, the control strategy that adopts time-division operation, duplexing condition to switch, solved heat pump heat consumption and system's cold when the driving regenerator unmatched problem of exerting oneself fully, solved the cold and hot mismatch problem of solution dehumidification system effectively, can significantly improve the comprehensive Energy Efficiency Ratio of system, the COP of heat pump can bring up to 5.0 under the non-regeneration operating mode from 3.0, and makes the comprehensive Energy Efficiency Ratio of described system reach 5.5～6.0.Simultaneity factor adopts water-cooled cold water high temperature heat pump, the high-temperature-hot-water that utilizes heat pump to produce drives regenerator, chilled water is then with removing indoor sensible heat load, can constitute a complete air-conditioning system with simple fresh air dehumidification device (not carrying heat pump), regenerator etc., make system equipment simpler, and realized the wet independent control of heat of air-conditioning system.
When this system moved, terminal dry-type fan coil was used to remove indoor sensible heat load in the most of supply chamber of the chilled water that heat pump produces, and the fraction chilled water then enters the fresh air dehumidification device of being with the solution recuperation of heat, takes away the heat that produces in the dehumidification process.The hot water that heat pump produces is then sent into regenerator the solution that dilutes because of dehumidifying is concentrated regeneration, and the concentrated solution overflow after the regeneration enters the concentrated solution tank stores and gets up for new blower fan use.If the concentrated solution amount in the fluid reservoir has reached the dehumidifying demand of this day, then to close regenerator, open cooling tower simultaneously, cooling tower dissipates on the hot water that heat pump produces.Because this moment, the hot water temperature can drop to about 37 ℃, so the COP of heat pump can be greatly improved.The fresh air dehumidification device uses the concentrated solution that has stored in fluid reservoir to finish dehumidification process.Because the concentrated solution accumulation of energy is to store chemical energy, its energy storage density is about 3～5 times of ice cold-storage, and fluid reservoir is without any need for the insulation measure, and is simple in structure, easily manufactured.
Remarkable result of the present invention:
1, the present invention proposes a kind of heat pump driven energy storage type solution dehumidifying air-conditioning system, solved the cold and hot mismatch problem that solution dehumidifying air-conditioning system exists, make also to be easy to use based on the wet independent solution dehumidifying air-conditioning system of controlling of heat, when improving indoor air quality, reduce energy resource consumption in the area of no municipal heating systems.
2, during operation of heat pump regeneration operating mode, 60 ℃～75 ℃ hot water is used for regeneration, and the cold water then major part sensible heat load, the fraction that are used to remove the room is used for the latent heat that the cooling and dehumidifying process discharges.When regenerator is closed, during the operation of heat pump worst cold case, about 32 ℃～37 ℃ of hot water temperature, COP can reach 5.0, the comprehensive Energy Efficiency Ratio of whole system reaches 5.5～6.0, is higher than the Energy Efficiency Ratio of conventional heat pump.
3, whole air-conditioning system no longer needs other Cooling and Heat Source except that fresh air dehumidification device, solution regenerator and heat pump, and apparatus-form is simpler.
Description of drawings
Fig. 1 is an air-conditioning system syndeton schematic diagram of the present invention.
The specific embodiment
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of heat pump driven energy storage type solution dehumidifying air-conditioning system that the present invention proposes, system comprises heat pump 1, fresh air dehumidification device 2, solution regenerator 3, cooling tower 6, is arranged on fluid reservoir on the solution loop between fresh air dehumidification device and the solution regenerator etc., described heat pump is a water-cooled cold water heat pump 1, its cold water end links to each other with room conditioning is terminal, the hot water end links to each other with solution regenerator 3 or cooling tower 6, on the hot-water line between heat pump 1 and the solution regenerator 3 reversal valve 17 is set, on the hot-water line between heat pump 1 and the cooling tower 6 reversal valve 18 is set;
Described fluid reservoir comprises weak solution jar 4 and concentrated solution jar 5, and a high level switch A and a low liquid-level switch B are set in the described weak solution jar; Described concentrated solution jar 5 one ends connect the taphole of solution regenerator 3, the other end connects the solution inlet of fresh air dehumidification device 2 by concentrated solution pump 15, described weak solution jar 4 one ends connect the taphole of fresh air dehumidification device 2, the other end connects the solution inlet of solution regenerator 3 by weak solution pump 16, concentrated solution 7 is delivered to fresh air dehumidification device 2 from concentrated solution jar 5, the weak solution 8 that forms after the moisture absorption is from flowing back in the weak solution jar 4, weak solution 9 in the weak solution jar 4 is sent to and concentrates regeneration in the regenerator 3, and concentrated solution 10 overflows after the regeneration are got back in the concentrated solution jar 5.
The method of operation of air-conditioning system of the present invention: the method for operation and the regular solution dehumidification system of fresh air dehumidification device 2 and solution regenerator 3 are similar, concentrated solution 7 is delivered to fresh air dehumidification device 2 by concentrated solution pump 15 from concentrated solution jar 5, carry out the caloic exchange with the outdoor new wind that enters dehumidifier 2, after being dehumidified, new wind sends into the room, in order to make full use of the energy of return air, also be provided with the full heat recovery module of solution in the dehumidifier, return air is carried out full recuperation of heat, and then be discharged to outdoorly, finish the diluted weak solution in dehumidifying back 8 from flowing back in the weak solution jar 4.Weak solution 9 in the weak solution jar 4 is delivered to by weak solution pump 16 and is concentrated regeneration in the regenerator 3, and the concentrated solution overflow after the regeneration is got back in the concentrated solution jar 5.In the weak solution jar, be provided with a high level switch A and a low liquid-level switch B.When system brings into operation, heat pump 1 operation high-temperature-hot-water operating mode (leaving water temperature is 60 ℃～75 ℃), fresh air dehumidification device 2 and solution regenerator 3 standard-sized sheets, hot water 11 enter regenerator and drive regeneration and carries out, and the hot water 12 after the heat exchange cooling enters the heat pump device heating that is condensed again.Heat pump cold water 13 major parts are sent into the room and are removed sensible heat load, and fraction is sent into fresh air dehumidification device 2 and taken away the heat that discharges in the dehumidification process.Carrying out along with regenerative process, liquid level in the weak solution jar 4 constantly reduces, when liquid level is reduced to low liquid-level switch B when following, the regenerative process that weak solution is described is finished, close regenerator 3 and open cooling tower 6 this moment, make heat-pump hot-water 11 deliver to cooling tower 6 heat radiations by valve (17,18) switching, the hot water 12 after the heat radiation flows back to heat pump 1, stable back operation of heat pump low-temperature water heating operating mode (about 37 ℃ of water outlets).Fresh air dehumidification device 2 continues to use the concentrated solution that stores in the concentrated solution jar to dehumidify, carrying out along with dehumidification process, liquid level in the weak solution jar constantly rises, when treating that liquid level rises to high level switch A, illustrate that concentrated solution is all diluted, open regenerator 3 this moment, close cooling tower 6 that switch valve (17,18) makes the hot water 11 of heat pump enter regenerator 3 and drives regeneration again, finish until regenerative process, so repeatedly circulation.
Claims (2)
1. heat pump driven energy storage type solution dehumidifying air-conditioning system, it is characterized in that, system comprises heat pump (1), fresh air dehumidification device (2), solution regenerator (3), cooling tower (6), be arranged on the fluid reservoir on the solution loop between fresh air dehumidification device and the solution regenerator, described heat pump is a water-cooled cold water heat pump (1), its cold water end links to each other with room conditioning is terminal, the hot water end links to each other with solution regenerator (3) or cooling tower (6), on the hot-water line between heat pump (1) and the solution regenerator (3) reversal valve (17) is set, on the hot-water line between heat pump (1) and the cooling tower (6) reversal valve (18) is set;
Described fluid reservoir comprises weak solution jar (4) and concentrated solution jar (5), and a high level switch A and a low liquid-level switch B are set in the described weak solution jar; Described concentrated solution jar (5) one ends connect the taphole of solution regenerator (3), the other end connects the solution inlet of fresh air dehumidification device (2) by concentrated solution pump (15), described weak solution jar (4) one ends connect the taphole of fresh air dehumidification device (2), the other end connects the solution inlet of solution regenerator (3) by weak solution pump (16), concentrated solution (7) is delivered to fresh air dehumidification device (2) from concentrated solution jar (5), the weak solution that forms after the moisture absorption (8) flows back in the weak solution jar (4) certainly, weak solution (9) in the weak solution jar (4) is sent to and concentrates regeneration in the regenerator (3), and the concentrated solution after the regeneration (10) overflow is got back in the concentrated solution jar (5).
2. heat pump driven energy storage type solution dehumidifying air-conditioning system according to claim 1 is characterized in that, the leaving water temperature scope of described heat pump (1) hot water side is 32 ℃～75 ℃, and the leaving water temperature scope of cold water side is 14 ℃～20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100291402A CN1333206C (en) | 2005-08-26 | 2005-08-26 | Heat pump driven energy storage type solution dehumidifying air-conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100291402A CN1333206C (en) | 2005-08-26 | 2005-08-26 | Heat pump driven energy storage type solution dehumidifying air-conditioning system |
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| CN1731030A CN1731030A (en) | 2006-02-08 |
| CN1333206C true CN1333206C (en) | 2007-08-22 |
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| CNB2005100291402A Expired - Fee Related CN1333206C (en) | 2005-08-26 | 2005-08-26 | Heat pump driven energy storage type solution dehumidifying air-conditioning system |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404967C (en) * | 2006-06-15 | 2008-07-23 | 清华大学 | Air treater set with moisture-absorbing solution as circulation work medium and driven by hot pump |
| CN101122406B (en) * | 2006-08-11 | 2010-05-12 | 上海海事大学 | Small central air conditioner set for separate processing for heat and humidity |
| CN101876469B (en) * | 2009-11-26 | 2012-06-27 | 佛山市浩特普尔人工环境设备有限公司 | Heat pump coupling contraflow type liquid-desiccant central ventilation system and control method thereof |
| CN101839528B (en) * | 2010-03-29 | 2012-10-24 | 江苏司麦克节能科技有限公司 | Control device for independently adjusting indoor air humidity |
| CN102261709B (en) * | 2011-06-16 | 2013-08-07 | 江苏大学 | Energy-saving comfortable air-conditioning system and working method thereof |
| CN102353102B (en) * | 2011-08-03 | 2013-11-06 | 天津商业大学 | Vacuum solution regenerating air dehumidification system and temperature and humidity independent control air conditioning system |
| CN109798624B (en) * | 2019-01-25 | 2020-03-31 | 重庆大学 | Indirect evaporation internal cooling heat pump type solution fresh air dehumidifying device |
| CN109812913B (en) * | 2019-01-25 | 2020-03-31 | 重庆大学 | Indirect evaporation inner-cooling type solution fresh air dehumidifying device |
| CN117073084B (en) * | 2023-08-21 | 2024-04-23 | 珠海格莱克科技有限公司 | Humidity control apparatus and method for stabilizing water temperature of humidity control apparatus |
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