CN106871277A - A kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system - Google Patents

A kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system Download PDF

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Publication number
CN106871277A
CN106871277A CN201610836829.4A CN201610836829A CN106871277A CN 106871277 A CN106871277 A CN 106871277A CN 201610836829 A CN201610836829 A CN 201610836829A CN 106871277 A CN106871277 A CN 106871277A
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CN
China
Prior art keywords
air
heat exchanger
conditioning system
plate type
solution
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Pending
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CN201610836829.4A
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Chinese (zh)
Inventor
周亚素
彭泰铭
简燕
冯彬
吴娜
黄永帅
唐肖龙
张盼
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Donghua University
National Dong Hwa University
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Donghua University
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Priority to CN201610836829.4A priority Critical patent/CN106871277A/en
Publication of CN106871277A publication Critical patent/CN106871277A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-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
    • F24F3/12Air-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
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1417Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers

Abstract

The invention provides a kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system, it is characterised in that the function of mechanical steam recompression formula regenerative device of solution including dehumidifier/air-conditioning system and for being regenerated to the dehumidification solution in dehumidifier/air-conditioning system.The invention discloses a kind of function of mechanical steam recompression (Mechanical Vapor Recompression, abbreviation MVR) air processor that is combined with dehumidifier/air-conditioning system of concentration technique passes through the concentrating regenerative dehumidification liquids such as vapour compression machine, evaporative condenser, vavuum pump, realize efficiently, energy-conservation, economic circulation use dehumidification solution, the novel dehumidifying air-conditioning system system COP, effect on moisture extraction and operation stability compared with legacy system further improve, with the obvious advantage.

Description

A kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system
Technical field
The invention belongs to heating, divulging information and air-conditioning technique field, more particularly to function of mechanical steam recompression (MVR) is high Effect concentration technique actified solution combines the air-conditioning system device of dehumidifying.
Background technology
The dehumidifier/air-conditioning system with environmental protection and energy saving feature has become the hot subject of domestic and foreign scholars research at present.It is molten Liquid dehumidifying need not consume the energy for being warmed up to ventilation state point after freeze drying again.Research shows, the air-conditioning system of dehumidifying Operation energy consumption more than 30% is saved than traditional air-conditioning system.
The dehumidification solution overwhelming majority in the market is the salting liquids such as lithium-bromide solution (LiBr) solution, is due to dense Solution has strong water imbibition.The air qualities such as the too high easy breed bacteria of air humidity, moldy metamorphism can be solved the problems, such as. The weak solution after absorption air moisture be condensed into concentrated solution recycle adjusting air humidity have very big economic worth and Applying value.
Current exercisable solution regeneration, from regeneration principle angle, mainly there is thermal regeneration, embrane method regeneration and ultrasound Ripple regeneration etc., the research of wherein thermal regeneration mode is in the majority, and technology is also more ripe.From thermal source angle, thermal regeneration can divide again It is solar energy heating regeneration, the reclaiming of waste heat energy, electrical heating regeneration etc..But these methods are under some special environment Effect on moisture extraction and operation stability be not good, such as larger in overcast and rainy moisture removal and solar energy heating that solar energy deficiency is caused Regenerator regeneration efficiency is not high or residual heat regenerating mode is in two season of summer in the winter uneven caused fluctuation of service dehumidifying effect of heat The problems such as fruit is not good.
In addition, the development of current liquid dehumidifying technology is also faced with many urgent problems.Solution regenerator performance Coefficient is not high, and the physical property of dehumidification solution limits further raising of system COP etc..It is domestic for the various problems for occurring Outer scholar has made substantial amounts of research work:Stand in the breach is to carry out the new exploitation of humidity processing unit, regenerator and grind Study carefully.Because the regeneration of dehumidification solution is the important step of liquid dehumidifying air-conditioning system, the effect on moisture extraction of whole system is influenceed And operation stability, so, solution regeneration is also one of focus of domestic and foreign scholars research.
The research of different regenerations its essence is, in order to improve regeneration efficiency, to reduce energy ezpenditure.And mechanical vapour is again Compression (MVR) technology is based on the operation principle of heat pump, by the input of a small amount of electric energy, the Lowlevel thermal energy of indirect steam is converted to Heat the high level heat of steam, with without condenser, low feed liquid requirement, operation, simple, energy consumption it is low, without condensed water, cost Low advantage.Under vacuum conditions, dehumidification solution solution boiling point will be reduced, improve evaporation efficiency simultaneously.Machinery is used in theory Steam recompression technology can save more than 80% energy than traditional evaporation equipment, and its operating cost is significantly reduced.The skill Art is widely used in the evaporation such as industry, food, desalinization, liquid waste processing field.
In view of MVR evaporation techniques have good energy saving and economy, can well adapt to what environmental change brought The problems such as fluctuation of service and concentrating regenerative effect on driving birds is not good.Therefore its liquid dehumidifying field also should have wide application and Promotion prospect.It is also simultaneously a kind of innovation, the abundant and development to liquid dehumidifying air-conditioning system.
The content of the invention
It is empty with dehumidifying it is an object of the invention to provide the thermal regeneration mode that mistake mentioned above is substituted using MVR regeneration techniqueses The air processor that adjusting system is combined, it is not good with regeneration effect to overcome conventional solution regeneration operation stability poor The problems such as.
In order to achieve the above object, the invention provides a kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system, its feature It is, including dehumidifier/air-conditioning system and the function of mechanical steam recompression for being regenerated to the dehumidification solution in dehumidifier/air-conditioning system Formula regenerative device of solution.
Preferably, described dehumidifier/air-conditioning system includes humidity processing unit, is provided with described humidity processing unit and removed Wet solution spraying pipe, described function of mechanical steam recompression formula regenerative device of solution includes that the first plate type heat exchanger, second board-like are changed Hot device, circulating pump, evaporative condenser, demister and vapour compression machine, are provided with heat exchanger tube in described evaporative condenser, described The first medium entrance and second plate type heat exchanger of dehumidification solution outlet first plate type heat exchanger of connection of humidity processing unit First medium entrance, the first medium outlet of the first plate type heat exchanger and the first medium outlet connection of the second plate type heat exchanger are steamed Feel cold the dehumidification solution entrance of condenser, and the second medium that the concentrated solution discharging opening of evaporative condenser connects the first plate type heat exchanger enters Mouthful, the dehumidification solution shower in the second medium outlet connection humidity processing unit of the first plate type heat exchanger, evaporative condenser Condensation-water drain connect the second medium entrance of the second plate type heat exchanger, the heat exchanger tube outlet connection of described evaporative condenser Demister, demister connection vapour compression machine, vapour compression machine connects the heat exchange tube inlet of evaporative condenser.
It is highly preferred that described dehumidifier/air-conditioning system also includes adiabatic humidiflcation device and Other heat exchange devices, described is exhausted Hot humidification device, Other heat exchange devices and humidity processing unit are sequentially connected.
It is highly preferred that the dehumidification solution outlet of described humidity processing unit enters with the first medium of the first plate type heat exchanger Connecting line between mouth and the first medium entrance of the second plate type heat exchanger is provided with weak solution feed pump.
It is highly preferred that the first medium outlet of the first described plate type heat exchanger and the first medium of the second plate type heat exchanger Outlet is provided with circulating pump with the connecting line of the dehumidification solution entrance of evaporative condenser.
It is highly preferred that the vavuum pump that described evaporative condenser connection can extract evaporative condenser inner air out.
It is highly preferred that the dehumidification solution in the second medium outlet and humidity processing unit of the first described plate type heat exchanger Connecting line between shower is provided with concentrated solution discharging pump.
It is highly preferred that the second medium outlet connection condensate pump of the second described plate type heat exchanger.
Compared with prior art, the beneficial effects of the invention are as follows:
1st, the invention discloses a kind of function of mechanical steam recompression (Mechanical Vapor Recompression, abbreviation MVR) concentration technique passes through vapour compression machine, evaporative condenser, vacuum with the air processor that dehumidifier/air-conditioning system is combined The concentrating regenerative dehumidification liquid such as pump, realize efficiently, energy-conservation, economic circulation use dehumidification solution, the novel dehumidifying air-conditioning system with pass System system further improves compared to system COP, effect on moisture extraction and operation stability, with the obvious advantage.
2nd, dehumidification solution regenerating unit of the invention uses MVR technologies, and effect on moisture extraction is not under solving some particular surroundings The good and not good problem of operational effect.
3rd, outdoor air process of the present invention will also be logical respectively through humidity processing unit spray process, indoor exhaust Cross Other heat exchange devices and do waste heat recovery processing, to reach the purpose of energy-conservation.
4th, vapour compression machine of the invention effectively can switch to the Lowlevel thermal energy of secondary steam through the input of a small amount of electricity Heat the high level heat of steam, the effectively save energy.
Brief description of the drawings
Fig. 1 is function of mechanical steam recompression formula dehumidifier/air-conditioning system schematic diagram
In figure:1- adiabatic humidiflcations device, 2- Other heat exchange devices, 3- humidity processing unit, 4- weak solutions feed pump, 5- One plate type heat exchanger, the plate type heat exchangers of 6- second, 7- circulating pumps, 8- evaporative condensers, 9- demisters, 10- vapour compression machines, 11- vavuum pumps, 12- evaporative condensers inner air, 13- condensate pumps, 14- condensed waters, 15- concentrated solutions discharging pump, outside 16- rooms Air, 17- room airs, 18- rooms.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited Scope.
Embodiment
As shown in figure 1, a kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system, including dehumidifier/air-conditioning system and for removing The function of mechanical steam recompression formula regenerative device of solution that dehumidification solution in wet air-conditioning system is regenerated.
Described dehumidifier/air-conditioning system includes adiabatic humidiflcation device 1, Other heat exchange devices 2 and humidity processing unit 3, described Adiabatic humidiflcation device 1, Other heat exchange devices 2 and humidity processing unit 3 be sequentially connected.Set in described humidity processing unit 3 There is dehumidification solution shower, for spraying dehumidification solution to outdoor air, the bottom of humidity processing unit 3 is provided with dehumidification solution and goes out Mouthful.Described dehumidification solution can be lithium chloride solution, the calcium chloride solution of 40%-50%, the 45%- of 30%-40% concentration 65% lithium-bromide solution etc..When using, outdoor air 16 enters humidity processing unit 3, will after dehumidification solution spray process Air is sent to Other heat exchange devices 2 and adiabatic humidiflcation device 1 successively, is finally then sent through indoor room 18, and room air 17 is discharged Behind room 18, carry out being discharged after waste heat is exchanged through Other heat exchange devices 2 and the outdoor air 16 after dehumidification solution spray process.
Described function of mechanical steam recompression formula regenerative device of solution includes the first plate type heat exchanger 5, the second plate type heat exchanger 6th, circulating pump 7, evaporative condenser 8, demister 9 and vapour compression machine 10.
Heat exchanger tube is provided with described evaporative condenser 8, the top of evaporative condenser 8 is provided with heat exchanger tube outlet and dehumidifies molten Liquid entrance, the bottom of evaporative condenser 8 is provided with heat exchange tube inlet, concentrated solution discharging opening and condensation-water drain.The first described plate Formula heat exchanger 5 is provided with first medium entrance, first medium outlet, second medium entrance and second medium outlet, at humidity Manage device 3 dilute dehumidification solution as first medium, the dense dehumidification solution from evaporative condenser 8 as second medium, the two Heat exchange is carried out in the first plate type heat exchanger 5.The second described plate type heat exchanger 6 is provided with first medium entrance, first medium Outlet, second medium entrance and second medium outlet, the dilute dehumidification solution from humidity processing unit 3 come as first medium Used as second medium, the two carries out heat exchange to the condensed water of spontaneous evaporation condenser 8 in the second plate type heat exchanger 6.
Described humidity processing unit 3 dehumidification solution outlet connection the first plate type heat exchanger 5 first medium entrance and The first medium entrance of the second plate type heat exchanger 6, the dehumidification solution of described humidity processing unit 3 is exported and the first plate-type heat-exchange Connecting line between the first medium entrance of the first medium entrance of device 5 and the second plate type heat exchanger 6 is provided with weak solution and enters Material pump 4.The first medium outlet of the first plate type heat exchanger 5 and the first medium outlet connection evaporation of the second plate type heat exchanger 6 are cold The of the dehumidification solution entrance of condenser 8, the first medium outlet of described the first plate type heat exchanger 5 and the second plate type heat exchanger 6 One media outlet is provided with circulating pump 7 with the connecting line of the dehumidification solution entrance of evaporative condenser 8.Evaporative condenser 8 it is dense Solution discharging opening connects the second medium entrance of the first plate type heat exchanger 5, the second medium outlet connection of the first plate type heat exchanger 5 Dehumidification solution shower in humidity processing unit 3, the second medium outlet of the first described plate type heat exchanger 5 is processed with humidity The connecting line between dehumidification solution shower in device 3 is provided with concentrated solution discharging pump 15.The condensed water of evaporative condenser 8 The second medium entrance of outlet the second plate type heat exchanger 6 of connection, the second medium outlet of the second described plate type heat exchanger 6 is connected Condensate pump 13.
The heat exchanger tube outlet connection demister 9 of described evaporative condenser 8, the connection vapour compression machine 10 of demister 9, steam Compressor 10 connects the heat exchange tube inlet of evaporative condenser 8.The described connection of evaporative condenser 8 can be by evaporative condenser 8 The vavuum pump 11 that portion's air is extracted out.
Each pipeline periphery in described function of mechanical steam recompression formula regenerative device of solution adds insulation material, evaporative condenser Condensed water discharges outdoor through the second plate type heat exchanger 6 by condensate pump 13 in device 8, without adding insulation material.All devices are equal Air Conditioning Facilities are installed on, vapour compression machine 10 and all kinds of pumps need to add glissando.Evaporative condenser 8 plus heat-insulating heat-preserving material, remove The spray head of wet solution spraying pipe selects rotary nozzle.Vacuumized by vavuum pump 11 in evaporative condenser 8, keep certain vacuum Degree, improves evaporation efficiency.
Dilute dehumidification solution from humidity processing unit 3 by feed pump 4, by the first plate type heat exchanger 5 and the second plate Formula heat exchanger 6 is exchanged heat, and squeezing into evaporative condenser 8 through circulating pump 7 is concentrated.Wherein, secondary steam after demister 9 by being steamed Vapour compressor 10 is sucked, and is compressed into high temperature and high pressure steam, lifts the heat exchanger tube passed through in evaporative condenser 8 after its enthalpy to circulation Spray dehumidification solution is evaporated concentration, after solution concentration reaches requirement, by concentrated solution discharging pump 15, board-like is changed through first Hot device 5 is sprayed to humidity processing unit 3 is interior, with this circular treatment dehumidification solution.Condensed water passes through the second plate type heat exchanger 6 Discharged into condensate pump 13.Vavuum pump 11 arrives outdoor, the present invention after the vacuumize process of 8 inner air of evaporative condenser 12 is arranged Air adjustment is completed by above procedure.

Claims (8)

1. a kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system, it is characterised in that including dehumidifier/air-conditioning system and for removing The function of mechanical steam recompression formula regenerative device of solution that dehumidification solution in wet air-conditioning system is regenerated.
2. function of mechanical steam recompression formula dehumidifier/air-conditioning system as claimed in claim 1, it is characterised in that described dehumidification air conditioner System includes humidity processing unit (3), and dehumidification solution shower, described machinery are provided with described humidity processing unit (3) Vapor recompression formula regenerative device of solution includes the first plate type heat exchanger (5), the second plate type heat exchanger (6), circulating pump (7), steaming Felt cold condenser (8), demister (9) and vapour compression machine (10), and heat exchanger tube is provided with described evaporative condenser (8), described The first medium entrance and second of dehumidification solution outlet the first plate type heat exchanger of connection (5) of humidity processing unit (3) board-like is changed The first medium entrance of hot device (6), the first medium outlet of the first plate type heat exchanger (5) and the of the second plate type heat exchanger (6) The dehumidification solution entrance of one media outlet connection evaporative condenser (8), the concentrated solution discharging opening connection first of evaporative condenser (8) The second medium entrance of plate type heat exchanger (5), the second medium outlet connection humidity processing unit of the first plate type heat exchanger (5) (3) the dehumidification solution shower in, the condensation-water drain of evaporative condenser (8) connects second Jie of the second plate type heat exchanger (6) Matter entrance, the heat exchanger tube outlet of described evaporative condenser (8) connects demister (9), demister (9) connection vapour compression machine (10), the heat exchange tube inlet of vapour compression machine (10) connection evaporative condenser (8).
3. function of mechanical steam recompression formula dehumidifier/air-conditioning system as claimed in claim 2, it is characterised in that described dehumidification air conditioner System also includes adiabatic humidiflcation device (1) and Other heat exchange devices (2), described adiabatic humidiflcation device (1), Other heat exchange devices (2) it is sequentially connected with humidity processing unit (3).
4. function of mechanical steam recompression formula dehumidifier/air-conditioning system as claimed in claim 2, it is characterised in that described humidity treatment The of the dehumidification solution outlet of device (3) and the first medium entrance of the first plate type heat exchanger (5) and the second plate type heat exchanger (6) Connecting line between one medium inlet is provided with weak solution feed pump (4).
5. function of mechanical steam recompression formula dehumidifier/air-conditioning system as claimed in claim 2, it is characterised in that described first is board-like The first medium outlet of heat exchanger (5) and the first medium outlet of the second plate type heat exchanger (6) and the dehumidifying of evaporative condenser (8) The connecting line of solution inlet is provided with circulating pump (7).
6. function of mechanical steam recompression formula dehumidifier/air-conditioning system as claimed in claim 2, it is characterised in that described evaporative condenser The vavuum pump (11) that device (8) connection can extract evaporative condenser (8) inner air out.
7. function of mechanical steam recompression formula dehumidifier/air-conditioning system as claimed in claim 2, it is characterised in that described first is board-like Set on the connecting line between dehumidification solution shower in the second medium outlet of heat exchanger (5) and humidity processing unit (3) There is concentrated solution discharging pump (15).
8. function of mechanical steam recompression formula dehumidifier/air-conditioning system as claimed in claim 2, it is characterised in that described second is board-like Second medium outlet connection condensate pump (13) of heat exchanger (6).
CN201610836829.4A 2016-09-21 2016-09-21 A kind of function of mechanical steam recompression formula dehumidifier/air-conditioning system Pending CN106871277A (en)

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