CN100451468C - Multi-stage solution dehumidifying and regenerating fresh air set driven by heat pump - Google Patents
Multi-stage solution dehumidifying and regenerating fresh air set driven by heat pump Download PDFInfo
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- CN100451468C CN100451468C CNB2006100122593A CN200610012259A CN100451468C CN 100451468 C CN100451468 C CN 100451468C CN B2006100122593 A CNB2006100122593 A CN B2006100122593A CN 200610012259 A CN200610012259 A CN 200610012259A CN 100451468 C CN100451468 C CN 100451468C
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- 230000001172 regenerating effect Effects 0.000 title claims 2
- 230000008929 regeneration Effects 0.000 claims abstract description 31
- 238000011069 regeneration method Methods 0.000 claims abstract description 31
- 238000007791 dehumidification Methods 0.000 claims abstract description 22
- 238000005057 refrigeration Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000002427 irreversible effect Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004378 air conditioning Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 230000007704 transition Effects 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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- 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]
- Y02B30/56—Heat recovery units
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Abstract
The present invention relates to a multi-stage solution dehumidification and regeneration fresh air machine set driven by a heat pump, which belongs to the field of air conditioners. The machine set mainly comprises a complete heat exchange module 1 in which gas comes into contact with solutions directly, a compressor 2, a left condenser 3, a right condenser 4, a left evaporator 5, a right evaporator 6, a left plate-type heat exchanger 7, a right plate-type heat exchanger 8, a solution circulation water pump 9, an expansion valve 10, a left water replenishing valve 11 and a right water replenishing valve 12. The fresh air machine set is a fresh air treatment machine set which is driven by the heat pump and is based on a multi-stage solution dehumidification unit and a multi-stage solution regeneration unit, and simultaneously, the fresh air machine set also comprises a complete heat recovery unit so as to carry out complete heat recovery on return air and fresh air and reduce energy consumption required by fresh air treatment. The fresh air machine set of the present invention can regulate the temperature of dehumidification solutions of all stages by regulating the cold quantity of the evaporators of a refrigeration system, and simultaneously, proper water replenishing can control the concentration of the dehumidification solutions of all stages. The fresh air machine set realizes gradual dehumidification and cooling for the fresh air so as to reduce the irreversible loss of a process and improve the coefficient of performance (COP) of the machine set.
Description
Technical field
The present invention relates to a kind of solution-type air processor, especially relate to a kind of heat pump driven multi-stage solution dehumidifying and belong to field of air conditioning with the new blower fan group of regeneration.
Background technology
Because in the advantage that can utilize aspects such as low-grade energy, energy savings consumption, protection environment, in recent years, the solution type dehumidifying air-conditioning system has obtained paying close attention to comparatively widely.Solution dehumidifying air-conditioning system can use low-temperature heat source (60～90 ℃) to drive, and has saved a large amount of air-conditioning power consumptions; Based on the air-conditioning system of solution dehumidification, the efficient that sensible heat is handled improves 30%, thereby significantly reduces the energy resource consumption of air-treatment; Solution also has very strong accumulation of energy characteristic, and the accumulation of energy ability of unit volume solution is 3 times of ice cold-storage, and this makes air-conditioning system significantly strengthen the regulating power of load variations; Use salting liquid as working medium, avoid using CFCs and HCFCs etc. that ozone layer is had the working medium of destruction, can environment not damaged; Owing to needn't use the coil pipe that can produce condensate water, therefore just can not produce noxious pollutants such as mould yet, and can remove airborne dust, bacterium, mould and other nuisance, thereby help improving indoor air quality by the sprinkling of solution.In a word, solution-type air-treatment mode is all significant to improving air-conditioning system runnability, reduction energy resource consumption, raising indoor air quality, optimization urban energy structure etc.
Summary of the invention
The object of the present invention is to provide a kind of unit eer (COP) high heat pump driven, based on the fresh air processor group of multi-stage solution dehumidifying unit and multi-stage solution regeneration unit.
A kind of heat pump driven multi-stage solution dehumidifying that the present invention proposes and the new blower fan group of regeneration is characterized in that: described unit mainly contains gas-liquid directly contact full heat exchange module (1), compressor (2), left condenser (3), right condenser (4), left evaporimeter (5), right evaporimeter (6), left plate type heat exchanger (7), right panel formula heat exchanger (8), solution water circulating pump (9), expansion valve (10), left water compensating valve (11) and right water compensating valve (12); Described return air and new wind directly contact full heat exchange module (A), (B), (E), (F) through gas-liquid respectively and carry out full recuperation of heat, wherein module (A) and (F), (B) are with (E) corresponding, solution successively directly contacts with return air with new wind, through the return air after the recuperation of heat respectively with regeneration module (C), (D) in the higher weak solution heat exchange of temperature, after be discharged to outdoor; Pretreated new wind then enters among lower floor's dehumidification module (G), (H), with deliver to after the lower concentrated solution heat exchange of temperature indoor, wherein, dehumidification module (G), (H) correspond to one group with regeneration module (D), (C) respectively, between the higher concentrated solution of the temperature that flows out from module (D) and the lower weak solution of the temperature that flows out from module (G) plate type heat exchanger (7) is set and reclaims heat, module (C) with (H) between solution use plate type heat exchanger (8) the recovery heat of circulation; After the weak solution of module (H) outlet and the solution in module (C) the bottom solution groove are mixed, with the high temperature refrigeration working medium heat exchange of flowing out from compressor (2) in the right condenser (4), solution is heated the back and delivers to the regeneration of module top spray by solution circulation pump (9), concentrated solution after the regeneration flows back to dehumidification module (H), with the solution of (H) bottom solution groove mixed after, again with right evaporimeter (4) in the cryogenic refrigeration working medium heat exchange of flowing out from expansion valve (10), after being cooled, solution delivers to the dehumidifying of module top spray by solution circulation pump (9), solution concentration is thinning after absorbing airborne moisture, deliver to again in the regeneration module (C) and concentrate so circulation.
In above-mentioned new blower fan group, described new blower fan group is switched by the cross valve that is arranged at heat pump makes refrigerant flow direction opposite, left condenser (3), right condenser (4) dehumidify to return air as the solution among evaporator cools module (D), (C) and cool off, left side evaporimeter (5), right evaporimeter (6) carry out warming and humidifying as the solution among condenser heating (G), (H) to new wind, deliver to indoor through the new wind of the warm and moist behind the warming and humidifying.
In above-mentioned new blower fan group, described new blower fan group is not opened refrigeration system, only operation (A), (F) and (B), (E) two-stage total heat recovery unit, by solution between the superior and the subordinate with the full heat exchange of air, realize full recuperation of heat operating mode operation, realize to the new wind of indoor supply.
The present invention is by regulating the cold of each evaporimeter of refrigeration system, can regulate the temperature of dehumidification solutions at different levels, control the concentration of dehumidification solutions at different levels simultaneously by suitable moisturizing, realization is to the progressively dehumidifying and the cooling of new wind, to reduce the irreversible loss of process, improve the Energy Efficiency Ratio (COP) of unit.
Description of drawings
Fig. 1: the new blower fan fundamental diagram of heat pump driven two stage dehumidify/regeneration, two groups of evaporimeters and the shared compressor of condenser.
Fig. 2: the new blower fan fundamental diagram of heat pump driven two stage dehumidify/regeneration, every group of evaporimeter and condenser use independent compressor.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Ask for an interview Fig. 1 and Fig. 2.
With two-stage solution dehumidification and the new blower fan group of regeneration is example, the schematic diagram of its summer operation as shown in Figure 1, its critical piece comprises gas-liquid, and directly the full heat exchange module 1 of contact, compressor 2, left condenser 3, right condenser 4, left evaporimeter 5, right evaporimeter 6, left heat exchanger plates change 7, right heat exchanger plates changes 8, solution water circulating pump 9, expansion valve 10, left water compensating valve 11 and right water compensating valve 12.Return air and new wind directly contact full heat exchange module A, B, E, F through gas-liquid respectively and carry out full recuperation of heat, and wherein modules A is corresponding with F, B and E, and the solution priority directly contacts with return air with new wind.Through the return air after the recuperation of heat respectively with upper layer module C, D in the higher weak solution heat exchange of temperature, after be discharged to outdoor; Pretreated new wind then enters among lower module G, the H, with deliver to after the lower concentrated solution heat exchange of temperature indoor.Wherein, dehumidification module G, H correspond to one group with regeneration module D, C respectively.Between the higher concentrated solution of the temperature that flows out from module D and the lower weak solution of the temperature that flows out from module G plate type heat exchanger 7 is set and reclaims heats, the solution that circulates between module C and the H uses plate type heat exchanger 8 recovery heats.After the weak solution of module H outlet and the solution in the module C bottom solution groove are mixed, with the high temperature refrigeration working medium heat exchange of flowing out from compressor 2 in the right condenser 4, solution is heated the back and delivers to the regeneration of module top spray by solution circulation pump 9, concentrated solution after the regeneration flows back to dehumidification module H, with the solution of H bottom solution groove mixed after, again with right evaporimeter in the cryogenic refrigeration working medium heat exchange of flowing out from expansion valve 10, after being cooled, solution delivers to the dehumidifying of module top spray by solution circulation pump 9, solution concentration is thinning after absorbing airborne moisture, deliver to again among the regeneration module C and concentrate so circulation.Operation principle between module G, the D is identical with module H, C.Left side water compensating valve 11 is used for the solution concentration of control module D, and right water compensating valve 12 is used for the solution concentration of control module C.New blower fan utilizes the evaporimeter of heat pump that the dehumidifying concentrated solution is cooled off on the one hand, to strengthen the latent heat that discharges in solution dehumidification ability and the absorption dehumidifying process; The condenser that utilizes heat pump on the other hand heats the regeneration weak solution, again with full recuperation of heat after air draft carry out full heat exchange, solution promptly is concentrated regeneration.
The principle and the summer of new blower fan winter operation are similar, difference is to switch by cross valve and makes that refrigerant flow direction is opposite with summer condition to be moved, make summer as condenser 3,4 as the solution among evaporator cools module D, the C to return air dehumidifying cooling, and carry out warming and humidifying as the solution among condenser heating G, the H to new wind as 5,6 of evaporimeter summer, delivers to indoor through the new wind of the warm and moist behind the warming and humidifying.
At transition season, new blower fan is not opened refrigeration system, only moves A, F and B, E two-stage total heat recovery unit, by solution between the superior and the subordinate with the full heat exchange of air, realize full recuperation of heat operating mode operation, can realize to the new wind of indoor supply.
This use that the present invention proposes is heat pump driven, based on the fresh air processor group of multi-stage solution dehumidifying unit and multi-stage solution regeneration unit, simultaneously, this new blower fan group also comprises full heat recovery units, and return air and new wind are carried out full recuperation of heat, reduces new wind and handles required energy consumption.This new blower fan utilizes the evaporimeter of heat pump that the dehumidifying concentrated solution is cooled off on the one hand, to strengthen the latent heat that discharges in solution dehumidification ability and the absorption dehumidifying process; The condenser that utilizes heat pump on the other hand heats the regeneration weak solution, again with full recuperation of heat after air draft carry out full heat exchange, solution promptly is concentrated regeneration.In order to realize the dehumidification process of multistage different temperatures and concentration, strengthen dehumidifying, the cooling ability of new blower fan to air, evaporimeter and condenser all are provided with a plurality of, each grade dehumidification module and corresponding regeneration module are provided with a cover evaporimeter and a condenser, and plate type heat exchanger are set to reclaim heat in the solution circulation loop between corresponding module.Refrigeration system has two kinds of forms to select: a kind of is that all evaporimeter and condensers use a driven compressor, cold-producing medium enters each condenser through behind the compressor respectively by parallel pipeline, converge with outflow condenser after the solution heat exchange, through behind the expansion valve, entering each evaporimeter respectively cools off solution, the cold-producing medium that flows out from evaporimeter converges and enters compressor and be compressed (as shown in Figure 1, with two stage dehumidify/be regenerated as example); Another is all corresponding compressor of each group evaporimeter and condenser and expansion valve, and promptly dehumidifying of each grade and regeneration unit use independently refrigeration system (as shown in Figure 2, with two stage dehumidify/be regenerated as example).Physical device adopts that a kind of pattern, depends on the capacity of concrete air dewetting, amount of cooling water and refrigeration system.By regulating the cold of each evaporimeter of refrigeration system, can regulate the temperature of dehumidification solutions at different levels, control the concentration of dehumidification solutions at different levels simultaneously by suitable moisturizing, realize progressively dehumidifying and cooling new wind, to reduce the irreversible loss of process, improve the Energy Efficiency Ratio (COP) of unit.
Claims (3)
1, a kind of heat pump driven multi-stage solution dehumidifying and the new blower fan group of regenerating is characterized in that: described unit mainly contains gas-liquid directly contact full heat exchange module (A), (B), (C), (D), (E), (F), (G), (H), compressor (2), left condenser (3), right condenser (4), left evaporimeter (5), right evaporimeter (6), left plate type heat exchanger (7), right panel formula heat exchanger (8), solution water circulating pump (9), expansion valve (10), left water compensating valve (11) and right water compensating valve (12); From indoor return air with directly contact full heat exchange module (A), (B), (E), (F) from outdoor new wind by gas-liquid and carry out full recuperation of heat, wherein return air directly contacts full heat exchange module (A), (B) through gas-liquid, and new wind directly contacts full heat exchange module (E), (F) through gas-liquid.Directly contact the higher weak solution of full heat exchange module (C), (D) middle temperature with gas-liquid respectively through the return air after the recuperation of heat and carry out heat exchange, after be discharged to outdoor; Then entering gas-liquid through the new wind after the recuperation of heat directly contacts among full heat exchange module (G), (H), carry out delivering to after caloic exchanges indoor with the concentrated solution that temperature is lower, wherein, module (G), (D) are corresponding one group, module (H), (C) are corresponding one group, reclaim heat by left plate type heat exchanger (7) between the higher concentrated solution of the temperature that flows out from module (D) and the lower weak solution of the temperature that flows out from module (G), module (C) with (H) between the solution of circulation pass through right panel formula heat exchanger (8) recovery heat; After the weak solution of module (H) outlet and the solution in module (C) the bottom solution groove are mixed, with the high temperature refrigeration working medium heat exchange of flowing out from compressor (2) in the right condenser (4), solution is heated the back and delivers to the regeneration of module top spray by solution circulation pump (9), concentrated solution after the regeneration flows back to dehumidification module (H), with the solution of (H) bottom solution groove mixed after, again with right evaporimeter (6) in the cryogenic refrigeration working medium heat exchange of flowing out from expansion valve (10), after being cooled, solution delivers to the dehumidifying of module top spray by solution circulation pump (9), solution concentration is thinning after absorbing airborne moisture, deliver to again in the regeneration module (C) and concentrate so circulation; Described gas-liquid directly contacts full heat exchange module (G), (D) operation principle between and module (H), (C) operation principle between is identical, that is: after the weak solution of module (G) outlet and the solution in module (D) the bottom solution groove mix, with the high temperature refrigeration working medium heat exchange of flowing out from compressor (2) in the left condenser (3), solution is heated the back and delivers to the regeneration of module top spray by solution circulation pump (9), concentrated solution after the regeneration flows back to dehumidification module (G), with the solution of (G) bottom solution groove mixed after, again with left evaporimeter (5) in the cryogenic refrigeration working medium heat exchange of flowing out from expansion valve (10), after being cooled, solution delivers to the dehumidifying of module top spray by solution circulation pump (9), solution concentration is thinning after absorbing airborne moisture, deliver to again in the regeneration module (D) and concentrate so circulation.
2, according to the described new blower fan group of claim 1, it is characterized in that: make refrigerant flow direction opposite by the cross valve switching that is arranged at heat pump, left condenser (3), right condenser (4) dehumidify to return air as the solution among evaporator cools module (D), (C) and cool off, left side evaporimeter (5), right evaporimeter (6) carry out warming and humidifying as the solution among condenser heating module (G), (H) to new wind, deliver to indoor through the new wind of the warm and moist behind the warming and humidifying.
3, according to the described new blower fan group of claim 1, it is characterized in that: new blower fan can move full recuperation of heat operating mode, to the new wind of indoor supply, promptly do not open refrigeration system, only move gas-liquid directly contact full heat exchange module (A), (F) and (B), (E) two-stage total heat recovery unit, can realize fresh air supply.
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| CNB2006100122593A CN100451468C (en) | 2006-06-15 | 2006-06-15 | Multi-stage solution dehumidifying and regenerating fresh air set driven by heat pump |
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| CN100451468C true CN100451468C (en) | 2009-01-14 |
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