CN107525166A - A kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled - Google Patents
A kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled Download PDFInfo
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- CN107525166A CN107525166A CN201610453854.4A CN201610453854A CN107525166A CN 107525166 A CN107525166 A CN 107525166A CN 201610453854 A CN201610453854 A CN 201610453854A CN 107525166 A CN107525166 A CN 107525166A
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- solution
- regeneration
- module
- dehumidifying
- internally cooled
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F24F2003/144—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 dehumidification only
-
- 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
- F24F2003/144—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 dehumidification only
- F24F2003/1446—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 dehumidification only by condensing
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Central Air Conditioning (AREA)
Abstract
The present invention relates to HVAC technical field, discloses a kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled, including the solution recycle system and heat pump being made up of internally cooled dehumidification module and interior heat type regeneration module；Solution recycle system is that solution circulation loop between the level formed is connected by solution circulation pump with regeneration spray equipment by dehumidifying spray equipment, and is filled with hygroscopic solution between level in solution circulation loop；Heat pump is included by the refrigerating circuit that reheater condenser and choke valve are in turn connected to form in cold evaporator in dehumidifying, compressor, regeneration, and the solution preheating heat exchanger that the solution precool heat exchanger device of precooling and the import solution to regenerating spray equipment are preheated is carried out to the import solution of the spray equipment that dehumidifies.The liquid desiccant air conditioning unit has the characteristics of heat insulation-type is with interior cold (heat) type solution dehumidification device concurrently, the import solution temperature of (regeneration) spray equipment that dehumidifies can be controlled, beneficial to dehumidifying (regeneration) ability for improving device.
Description
Technical field
The present invention relates to HVAC technical field, more particularly to a kind of solution of heat pump driven pre-cooling type internally cooled to remove
Wet air-conditioner set.
Background technology
The main task of air conditioning in residential buildings system is to meet comfortableness demand of the indoor occupant to humiture at present, wherein
Air dewetting process is one of important step for building Indoor Temperature wet environment.It is in existing Air-Conditioner dehumidification method to use dehumidification by condensation more
Processing mode, air themperature is down to below dew point using refrigeration mechanism standby low temperature chilled water so that the moisture in air coagulates
Tie and realize the dehumidification treatments process to air.But because the condensation temperature of needs is very low (dew-point temperature for being less than air), make
Evaporating temperature into refrigeration machine reduces, so as to have a strong impact on the coefficient of performance of refrigeration machine.In addition, tradition condensation dehumidification mode is also
The problems such as wind pushing temperature is relatively low, needs reheating under partial picture, causes energy waste be present.And solution dehumidification mode can be efficiently
Meet air humidity process demand, it is no longer necessary to reheating, and energy of the multiclass low-temperature heat source as solution concentrating regenerative can be used
Source, it is respectively provided with obvious advantage in the saving energy, raising indoor air quality etc., thus is obtained in recent years in China
More and more extensive application is arrived.
Dehumidifying directly affects entirely with the core component that regenerating unit is solution dehumidifying air-conditioning system, its caloic exchange process
The performance of air-conditioning system.According to whether have the caloic exchange process that extraneous cold (heat) amount participates in solution and air, can be by dehumidifier
(regenerator) is divided into heat insulation-type and interior cold two kinds of forms of (heat) type.Wherein, the dehumidifying in heat insulation-type, in regenerating unit, air with
Solution carries out release or the absorption process that can have latent heat of phase change while heat and mass, makes the temperature of air and solution while sends out
Changing, and this change exactly suppresses and reduced mass transfer force, so as to reduce dehumidifying (regeneration) to a certain extent
The performance of device.Applicant proposes cold in one kind in the patent application that Chinese patent application publication No. is the A of CN 101846367
Type dehydrating unit and interior heat type regenerating unit, it is directly taken away dehumidification process using extraneous low-temperature receiver (cold water, refrigerant etc.) and discharged
Heat, maintain solution be in relatively low temperature levels, so as to maintain the stronger wettability power of solution.But in the program, by
In lack to dehumidify (regeneration) device entrance hygroscopic solution temperature control so that device to hygroscopic solution moisture absorption (concentrate
Regeneration) ability is relatively low.
The content of the invention
, can be right it is an object of the invention to provide a kind of heat pump driven pre-cooling type internally-cooled solution dehumidifying air-conditioner set
Dehumidifying, regenerating unit entrance solution temperature control effectively, beneficial to the caloic exchange process for improving solution and air.This hair
Bright purpose, which also resides in, provides a kind of heat pump driven pre-cooling type internally-cooled solution dehumidifying air-conditioner set of multi-stag.
To achieve these goals, the invention provides following technical scheme：
A kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled, including an internally cooled dehumidification module and one
Interior heat type regeneration module, the internally cooled dehumidification module and the interior heat type regeneration module are the liquid desiccant air conditioning unit
The composition module of middle solution recycle system and heat pump；The internally cooled dehumidification module includes dehumidifying spray equipment and dehumidifying
Interior cold evaporator, the interior heat type regeneration module include reheater condenser in regeneration spray equipment and regeneration；The internally cooled dehumidifying
Module is fresh air channel, and the interior heat type regeneration module is regeneration air path；
The solution recycle system is to pass through solution circulation pump by the dehumidifying spray equipment and the regeneration spray equipment
Solution circulation loop between the level that connection is formed, and it is filled with hygroscopic solution in solution circulation loop between the level；
The heat pump is included by reheater condenser and throttling in cold evaporator in the dehumidifying, compressor, the regeneration
The refrigerating circuit that valve is in turn connected to form, include the solution precooling of the import solution progress precooling to the dehumidifying spray equipment
Heat exchanger and the solution preheating heat exchanger preheated to the import solution for regenerating spray equipment.
Above-mentioned liquid desiccant air conditioning unit, the solution precool heat exchanger device are arranged in the compressor and the choke valve
Between and the pre- cold loop in parallel with the internally cooled dehumidification module on, pre- cold side magnetic valve is additionally provided with the pre- cold loop.
Above-mentioned liquid desiccant air conditioning unit, the solution preheating heat exchanger are arranged in the compressor and the choke valve
Between and the preheating circuit in parallel with the interior heat type regeneration module on, pre- hot side magnetic valve is additionally provided with the preheating circuit.
Above-mentioned liquid desiccant air conditioning unit, solution circulation loop, which is provided with, between the level is used for heat exchange between hygroscopic solution
Solution-solution heat exchanger.
Above-mentioned liquid desiccant air conditioning unit, reheater condenser is finned tube in cold evaporator and the regeneration in the dehumidifying
Form.
Above-mentioned liquid desiccant air conditioning unit, the internally cooled dehumidification module and interior heat type regeneration module use cross-exchange
Form.
Above-mentioned liquid desiccant air conditioning unit, the internally cooled dehumidification module and interior heat type regeneration module use countercurrent flow
Form.
A kind of liquid desiccant air conditioning unit of the heat pump driven pre-cooling type internally cooled of multi-stag, including at least two-stage dehumidifies again
Raw unit, every grade of dehumidifying regeneration unit is an above-mentioned liquid desiccant air conditioning unit provided by the invention；And wherein simultaneously
Multigroup internally cooled dehumidification module that row is set is fresh air channel, and the multigroup interior heat type regeneration module being arranged side by side is again
Raw air duct.
The beneficial effects of the present invention are：
A kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled provided by the invention, have following excellent
Gesture：1. combining the characteristics of heat insulation-type solution dehumidification device is with interior cold (heat) type solution dehumidification (regeneration) device, dehumidifying ensure that
The relatively low solution inlet temperature of the spray equipment solution inlet temperature higher with regeneration spray equipment, beneficial to the moisture absorption for improving device
With concentrating regenerative ability；2. using the solution with moisture pick-up properties as working media, using internally cooled dehumidification module and interior heat type again
Raw module, the evaporator of heat pump, which is used to dehumidify, to be exchanged heat, and the condenser of heat pump is used for into regeneration, reduce from
Evaporator/condenser can effectively reduce the operational difference of condenser and evaporator to the heat exchange link between hygroscopic solution, from
And efficiency of energy utilization can be significantly improved；3. solution recycle system, heat pump are combined, make evaporator in heat pump
Cold and the heat of condenser obtained effective utilization, the cold of evaporator is used to reduce solution temperature so as to improve
Dehumidifying effect, the heat of condenser are used for solution concentrating regenerative so as to improve power of regeneration.
The liquid desiccant air conditioning unit of the heat pump driven pre-cooling type internally cooled of multi-stag provided by the invention, including at least two
The above-mentioned liquid desiccant air conditioning unit of level, in addition to above-mentioned advantage, also there is the dehumidifying stronger to air, cooling capacity and more
High efficiency of energy utilization.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, and the specific embodiment of the present invention will be made further specifically with reference to accompanying drawing
It is bright, wherein
Fig. 1 is a kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 is the liquid desiccant air conditioning unit for the heat pump driven pre-cooling type internally cooled that another embodiment of the present invention provides
Schematic diagram；
Fig. 3 is the liquid desiccant air conditioning unit of the heat pump driven pre-cooling type internally cooled of multi-stag provided in an embodiment of the present invention
Schematic diagram.
The label declaration of wherein above-mentioned accompanying drawing is as follows：
1,1', 1 "-internally cooled dehumidification module, 2,2', 2 "-interior heat type regeneration module, 3,3', 3 "-solution circulation pump, 4,
4', 4 "-compressor, 5,5', 5 "-choke valve, 6,6', 6 "-solution precool heat exchanger device, 7,7', 7 "-solution preheating heat exchanger, 8,
8', 8 "-pre- cold side magnetic valve, 9,9', 9 "-pre- hot side magnetic valve, 10,10', 10 "-solution-solution heat exchanger；
11,11', 11 "-dehumidify spray equipment, cold evaporator in 12,12,12 "-dehumidifying；21,21', 21 "-regeneration spray
Device, 22,22', 22 "-regeneration in reheater condenser.
Embodiment
In order that those skilled in the art more fully understand technical scheme, below in conjunction with specific embodiment pair
This programme is further discussed in detail.
If Fig. 1 and Fig. 2 are a kind of solution dehumidification skies of heat pump driven pre-cooling type internally cooled provided in an embodiment of the present invention
The operation principle of unit is adjusted, figure cathetus represents the hygroscopic solution of circulated sprinkling, and chain-dotted line represents the refrigeration working medium of heat pump.
With reference to figure 1 and Fig. 2, the liquid desiccant air conditioning unit of the heat pump driven pre-cooling type internally cooled, including in one it is cold
Heat type regeneration module 2 in type dehumidification module 1 and one, the internally cooled dehumidification module 1 and the interior heat type regeneration module 2 are institute
State the composition module of solution recycle system and heat pump in liquid desiccant air conditioning unit；The internally cooled dehumidification module 1 wraps
Cold evaporator 12 in dehumidifying spray equipment 11 and dehumidifying is included, the interior heat type regeneration module 2 is including regeneration spray equipment 21 and again
Reheater condenser 22 in life；The internally cooled dehumidification module 1 is fresh air channel, and the interior heat type regeneration module 2 leads to for regeneration air
Road；Wherein,
The solution recycle system is to be followed by the dehumidifying spray equipment 11 and the regeneration spray equipment 21 by solution
Solution circulation loop between the level that the connection of ring pump 3 is formed, and hygroscopic solution is filled between the level in solution circulation loop, the suction
The wet preferred salting liquid of solution, salting liquid also have the function that sterilization, purification air, can improved while moisture absorbing is played
Indoor air quality.
The heat pump is included by the and of reheater condenser 22 in cold evaporator 12 in the dehumidifying, compressor 4, the regeneration
The refrigerating circuit that choke valve 5 is in turn connected to form, refrigerant is filled with the refrigerating circuit, such as water or other refrigerants, institute
Stating heat pump also includes carrying out the import solution of the dehumidifying spray equipment 11 the solution precool heat exchanger device 6 of precooling and right
The solution preheating heat exchanger 7 that the import solution of the regeneration spray equipment 21 is preheated.
The liquid desiccant air conditioning unit work when, outdoor fresh air enters internally cooled dehydrating unit 1, with spray and under it is denseer
Hygroscopic solution directly contact carry out heat and mass transfer process, be sent directly into interior by cooling, the air after dehumidification treatments, herein
The refrigerant of cold evaporator 12 directly cools down the dehumidification process in the dehumidifying in dehydrating unit.The regeneration air on upper strata enters
Interior heat type regenerating unit 2, with spray and under diluter hygroscopic solution directly contact, air takes away the moisture in solution, regeneration
The heat extraction of reheater condenser 22 provides heat for the concentrating regenerative of hygroscopic solution in regeneration in device.Also, circulated in hygroscopic solution
When, hygroscopic solution carries out precooling so that enter before the dehumidifying spray equipment 11 is entered by the solution precool heat exchanger device 6
The hygroscopic solution temperature entered in the dehumidifying spray equipment 11 is relatively low, has preferably wet-out property；And when hygroscopic solution is entering
Before entering the regeneration spray equipment 21, preheated by the solution preheating heat exchanger 7 so that enter the regeneration spray dress
The hygroscopic solution temperature put in 21 is higher, has the performance of preferably concentrating regenerative.
Above-mentioned liquid desiccant air conditioning unit is using the solution with moisture pick-up properties as working media, by solution dehumidification processing system
System, heat pump are combined, and combine the characteristics of heat insulation-type solution dehumidification device is with interior cold (heat) type solution dehumidification device, are ensured
The solution inlet temperature and the less temperature change of device interior edge journey of dehumidifying (regeneration) device relatively low (height).
In a preferred embodiment, the solution precool heat exchanger device 6 is arranged at the precooling time of the heat pump
Lu Shang, the pre- cold loop is in parallel with the internally cooled dehumidification module 1 between the compressor 4 and the choke valve 5, that is, passes through
Cross the low-temperature low-pressure refrigerant part after choke valve 5 throttles and be directly entered cold evaporator 12, another part stream in the dehumidifying
Enter in the solution precool heat exchanger device 6, precooling treatment is carried out to the import solution of the dehumidifying spray equipment 11.The precooling is returned
Pre- cold side magnetic valve 8 is additionally provided with road, for controlling the distribution condition of refrigerant.
The solution preheating heat exchanger 7 is arranged on the preheating circuit of the heat pump, and the preheating circuit is described
In parallel with the interior heat type regeneration module 2 between compressor 4 and the choke valve 5, i.e., the high temperature after the compression of compressor 4 is high
A compression refrigerant part flows directly into reheater condenser 22 in the regeneration, and another part is flowed into the solution preheating heat exchanger 7,
The pre-heat treatment is carried out to the import solution of the regeneration spray equipment 21.Pre- hot side magnetic valve 9 is additionally provided with the preheating circuit,
For controlling the distribution condition of refrigerant.
The solution precool heat exchanger device 6 and the solution preheating heat exchanger 7 are both preferably double pipe heat exchanger, hygroscopic solution
Be placed in the inside and outside both sides of sleeve pipe with refrigerant, such as be refrigerant in pipe, and it is outside hygroscopic solution to manage, and is entered by tube wall heat conduction
Row indirect heat transfer.
On the basis of above-mentioned technical proposal of the present invention, further, solution circulation loop is provided with and is used between the level
The solution-solution heat exchanger 10 of heat exchange between hygroscopic solution, the solution-solution heat exchanger 10 are arranged on from the interior heat
Relatively low dilute molten of the higher concentrated solution of temperature that type regeneration module 2 flows out and the temperature flowed out from the internally cooled dehumidification module 1
Between liquid, for the energy regenerating of hygroscopic solution, beneficial to the utilization ratio for improving the energy.
The solution-solution heat exchanger 10 is preferably plate type heat exchanger.
In the liquid desiccant air conditioning unit that the above embodiment of the present invention provides, the cold of cold evaporator 12 in the dehumidifying
Being directly used in reduces hygroscopic solution temperature, and so as to improve its dehumidifying effect, the heat of reheater condenser 22 is directly used in the regeneration
In hygroscopic solution concentrating regenerative, so as to improve its power of regeneration, in order to improve operating efficiency, it is preferable that cold in the dehumidifying
Reheater condenser 22 is finned tube form in evaporator 12 and the regeneration.
In addition, the internally cooled dehumidification module 1 and interior heat type regeneration module 2 can use cross-exchange form, such as Fig. 1 institutes
Show.The internally cooled dehumidification module 1 and interior heat type regeneration module 2 also can use countercurrent flow form, as shown in Fig. 2 in Fig. 2
In shown liquid desiccant air conditioning unit, the internally cooled dehumidification module 1 for adverse current dehumidifying tower, the interior heat type regeneration module 2
For counter-current regeneration tower.
Present invention also offers a kind of liquid desiccant air conditioning unit of the heat pump driven pre-cooling type internally cooled of multi-stag, including
At least two-stage dehumidifying regeneration unit, every grade of dehumidifying regeneration unit is one provided by the invention above-mentioned heat pump driven pre-
The liquid desiccant air conditioning unit of cold type internally cooled；And the multigroup internally cooled dehumidification module 1 being wherein arranged side by side leads to for fresh air
Road, the multigroup interior heat type regeneration module 2 being arranged side by side is regeneration air path.The liquid desiccant air conditioning unit is multi-stag
Solution dehumidifying and regenerating device, in addition to the advantage with above-mentioned single-stage liquid desiccant air conditioning unit, also there is stronger to air remove
Wet, cooling capacity and higher efficiency of energy utilization.
Fig. 3 shows a kind of operation principle of two-stage type liquid desiccant air conditioning unit provided in an embodiment of the present invention, in figure
Straight line represents the hygroscopic solution of circulated sprinkling, and chain-dotted line represents the refrigeration working medium of heat pump.Driven with reference to Fig. 3 and above-mentioned heat pump
Pre-cooling type internally cooled liquid desiccant air conditioning unit structure, it is possible to understand that ground, the two-stage type liquid desiccant air conditioning unit bag
Include internally cooled dehumidification module 1'(1 "), interior heat type regeneration module 2'(2 "), solution circulation pump 3'(3 "), compressor 4'(4 "), section
Flow valve 5'(5 "), solution precool heat exchanger device 6'(6 "), solution preheating heat exchanger 7'(7 "), pre- cold side magnetic valve 8'(8 "), preheating
Side magnetic valve 9'(9 "), solution-solution heat exchanger 10', (10 "), the cold mould dehumidification module 1'(1 ") include dehumidifying spray
Device 11'(11 ") and dehumidifying in cold evaporator 12'(12 "), the interior heat type regeneration module 2' includes regeneration spray equipment 21'
Reheater condenser 22'(22 " in (21 ") and regeneration), member connection structure and the above-mentioned list of the present invention in dehumidifying regeneration units at different levels
Content is identical described in the liquid desiccant air conditioning unit of level, and here is omitted.
Hygroscopic solution is two independent circulations in the air-conditioner set shown in Fig. 3, respectively with two independent heat pump systems
System is corresponding, the course of work of each solution recycle system and each heat pump also liquid desiccant air conditioning unit with above-mentioned single-stage
Described in content it is identical, here is omitted.
The liquid desiccant air conditioning unit of the heat pump driven pre-cooling type internally cooled of the multi-stag provided by the invention has more
Level dehumidifying, regenerating unit, can obtain the performance more excellent than single-stage system
Construction, feature and the action effect of the present invention, above institute is described in detail according to the embodiment shown in schema above
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention
Want made change, or be revised as the equivalent embodiment of equivalent variations, when still without departing from specification and illustrating covered spirit,
All should be in protection scope of the present invention.
Claims (8)
1. a kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled, it is characterised in that removed including an internally cooled
Heat type regeneration module in wet module and one, the internally cooled dehumidification module and the interior heat type regeneration module are that the solution removes
The composition module of solution recycle system and heat pump in wet air-conditioner set；The internally cooled dehumidification module includes dehumidifying and sprayed
Cold evaporator in device and dehumidifying, the interior heat type regeneration module include reheater condenser in regeneration spray equipment and regeneration；It is described
Internally cooled dehumidification module is fresh air channel, and the interior heat type regeneration module is regeneration air path；
The solution recycle system is to be connected by the dehumidifying spray equipment with the regeneration spray equipment by solution circulation pump
Solution circulation loop between the level of formation, and it is filled with hygroscopic solution in solution circulation loop between the level；
The heat pump include by reheater condenser in cold evaporator in the dehumidifying, compressor, the regeneration and choke valve according to
The refrigerating circuit that secondary connection is formed, include the solution precool heat exchanger of the import solution progress precooling to the dehumidifying spray equipment
Device and the solution preheating heat exchanger preheated to the import solution for regenerating spray equipment.
2. liquid desiccant air conditioning unit according to claim 1, it is characterised in that the solution precool heat exchanger device is arranged at
Between the compressor and the choke valve and on the pre- cold loop in parallel with the internally cooled dehumidification module, the precooling is returned
Pre- cold side magnetic valve is additionally provided with road.
3. liquid desiccant air conditioning unit according to claim 1, it is characterised in that the solution preheating heat exchanger is arranged at
It is described to preheat back between the compressor and the choke valve and on the preheating circuit in parallel with the interior heat type regeneration module
Pre- hot side magnetic valve is additionally provided with road.
4. liquid desiccant air conditioning unit according to claim 1, it is characterised in that set between the level in solution circulation loop
There is the solution-solution heat exchanger for heat exchange between hygroscopic solution.
5. liquid desiccant air conditioning unit according to claim 1, it is characterised in that cold evaporator and described in the dehumidifying
Reheater condenser is finned tube form in regeneration.
6. according to liquid desiccant air conditioning unit according to any one of claims 1 to 5, it is characterised in that the internally cooled removes
Wet module and interior heat type regeneration module use cross-exchange form.
7. according to liquid desiccant air conditioning unit according to any one of claims 1 to 5, it is characterised in that the internally cooled removes
Wet module and interior heat type regeneration module use countercurrent flow form.
8. a kind of liquid desiccant air conditioning unit of the heat pump driven pre-cooling type internally cooled of multi-stag, it is characterised in that including at least
Two-stage dehumidifying regeneration unit, every grade of dehumidifying regeneration unit is one such as solution according to any one of claims 1 to 7
Dehumidification air conditioner unit；And the multigroup internally cooled dehumidification module being wherein arranged side by side is fresh air channel, what is be arranged side by side is multigroup
The interior heat type regeneration module is regeneration air path.
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| CN201610453854.4A CN107525166A (en) | 2016-06-21 | 2016-06-21 | A kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled |
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| CN108224636A (en) * | 2018-01-03 | 2018-06-29 | 清华大学 | A kind of heat pump driven vacuum regeneration type solution dehumidifying fresh air handling group |
| CN108361869A (en) * | 2018-02-12 | 2018-08-03 | 清华大学 | A kind of heat pump driven solution dehumidification-regeneration air processing system |
| CN110274314A (en) * | 2018-03-13 | 2019-09-24 | 艾森曼欧洲公司 | Conditioning equipment, the treatment facility with conditioning equipment and the method for running conditioning equipment |
| CN110595106A (en) * | 2019-09-24 | 2019-12-20 | 清华大学 | Heat pump system |
| CN111031753A (en) * | 2019-12-12 | 2020-04-17 | 优刻得科技股份有限公司 | Fresh air unit and air conditioning system |
| 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 |
| CN111947444A (en) * | 2020-07-24 | 2020-11-17 | 浙江工业大学 | Closed cycle drying system based on open absorption heat pump |
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Application publication date: 20171229 |