CN1865789A - Whole-thermal reclaiming type thermal-drive solution ventilation processor set by using evaporative cooling of return air - Google Patents
Whole-thermal reclaiming type thermal-drive solution ventilation processor set by using evaporative cooling of return air Download PDFInfo
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- CN1865789A CN1865789A CN 200610012263 CN200610012263A CN1865789A CN 1865789 A CN1865789 A CN 1865789A CN 200610012263 CN200610012263 CN 200610012263 CN 200610012263 A CN200610012263 A CN 200610012263A CN 1865789 A CN1865789 A CN 1865789A
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Abstract
The invention relates to a recycle thermal-driving solution fan, which uses reflux air to vaporize and cool. Wherein, said invention comprises gas-liquid direct-contact modules (A-G), sheet heat exchanger, solution self-circulate pump, fan valve, and water pump; the upper channel is formed by the modules (A, B, C, D); the lower channel is formed the modules (E, F, G); the upper modules (B, C, D) is relative to the lower layer modules (E, F, G) to form three-stage heat recycles; each stage of upper and lower modules are connected by the sheet heat exchanger; the solution is cooled to be sprayed in the lower modules (E, F, G), to directly contact the air to dehumidify the air; and the dense solution enters into the lower modules (E, F, G); the upper module (A) contains the vaporizing cooling process between air and cold water, to generate cold water into the lower air cooler to reduce the temperature of air.
Description
Technical field
What the present invention relates to that a kind of field of heating ventilation air conditioning uses utilizes the full recovery type heat thermal-drive solution ventilation of return air evaporative cooling unit, belongs to energy technology field.
Background technology
Solution dehumidification is handled the mode of air, promptly utilizes the salting liquid of easy moisture absorption directly to contact with air, utilizes the difference of the steam partial pressure of air and salting liquid surface vapor pressure and the air that carries out is dehumidified or the process of humidification.The air-treatment mode of solution dehumidification, compare with the dehumidification by condensation mode of legacy system, do not need the low-temperature receiver of low temperature (7～12 ℃), both eliminated indoor moist surface, thereby improve indoor air quality, created condition for the utilization of multiple natural free low-temperature receiver again.And solution itself has the function of filtration, sterilization, can also purify air.The drive source of solution dehumidification can be the hot water (70～80 ℃) and the legacy system ratio of low temperature, and not electricity consumption drives air-conditioning, but makes the municipal heating systems summer operation, alleviates energy problem, improves the generating efficiency of steam power plant; Also can utilize the used heat of BCHP system to drive, realize the cascade utilization of the energy.
The means of improving indoor air quality are main by the outdoor resh air requirement of increase, but the increase of resh air requirement causes energy consumption to increase simultaneously.Adopting recuperation of heat means efficiently is the keys that solve this contradiction.Common runner recuperation of heat mode owing to can't thoroughly solve the problem of leaking out between new, return air, makes it inevitably have cross pollution.And existing multiple solution recuperation of heat mode, perhaps the mode by direct spray circulates solution between new wind, return air, perhaps make between the solution that contacts with new, return air by the plate type heat exchanger heat exchange, perhaps utilize the transpiration-cooled mode of return air to cool off the solution that contacts with new wind spray, all avoid cross pollution new, return air, guaranteed higher heat recovery efficiency simultaneously.The recuperation of heat of return air in the past all passes to new wind by spray solution basically, according to the air-supply humidity of reality and the requirement of temperature, how to reduce the heat exchange link as far as possible, and the requirement of satisfying air supply parameter becomes the key of the new wind treatment effeciency of further raising.
Summary of the invention
Based on above-mentioned background technology and problem, the purpose of this invention is to provide a kind of full recovery type heat thermal-drive solution ventilation of indoor return air evaporative cooling unit that utilizes, utilize this unit not need external source, after fully reclaiming indoor return air energy, promptly can produce the air-supply of sufficiently dry, temperature near room temperature.
The present invention proposes utilizes the full recovery type heat thermal-drive solution ventilation of return air evaporative cooling unit, it is characterized in that: described unit contains the direct contact modules of gas-liquid (A, B, C, D, E, F, G), plate type heat exchanger (2), solution self-circulating pump (3), air-valve (4), water pump (5); Described unit is divided into upper and lower two-layer passage, and the upper strata passage is the return air treatment channel, and it is made up of the direct contact modules of gas-liquid (A, B, C, D), and lower floor is new wind treatment channel, and it is made up of the direct contact modules of gas-liquid (E, F, G); The direct contact modules of described upper strata gas-liquid (B, C, D) and the three grades of full recuperations of heat of corresponding composition respectively of lower floor (E, F, G) module, every grade of upper and lower intermodule is linked to each other by plate type heat exchanger (2); Described in the direct contact modules of gas-liquid (B, C, D) inside modules, utilize return air evaporative cooling to produce the solution of cold water cooling plate type heat exchanger opposite side, after being cooled, solution in the direct contact modules of lower module gas-liquid (E, F, G), sprays, directly contact the dehumidification process of finishing air with air, concentrated solution enters the direct contact modules of gas-liquid (E, F, the G) module of lower floor successively, guarantee solution concentration suitable in each solution tank, make dehumidification process continue to carry out; The evaporative cooling process of air and cold water is carried out in the direct contact modules of upper strata gas-liquid (A) inside, produces aerial cooler (1) that cold water enters lower floor air-supply such as is carried out at wet cooling.
Description of drawings
Fig. 1: fresh air processor group fundamental diagram.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Referring to Fig. 1, this fresh air processor comprises: the direct contact modules A～G of gas-liquid, parts such as plate type heat exchanger 2, solution self-circulating pump 3, air-valve 4, water pump 5.This new blower fan is divided into upper and lower two-layer passage, and the upper strata passage is the return air treatment channel, and lower floor is new wind treatment channel.The upper strata passage is made up of the direct contact modules A of gas-liquid, B, C, D, and lower floor's passage is made up of the direct contact modules E of gas-liquid, F, G.The direct contact modules B of top gas-liquid, C, D distinguish three grades of full recuperations of heat of corresponding composition with E, F, the G module of bottom, and every grade of upper and lower intermodule is linked to each other by plate type heat exchanger 2.In B, C, D inside modules, utilize return air evaporative cooling to produce the solution of cold water cooling plate type heat exchanger opposite side, after being cooled, solution in lower module E, F, G, sprays, directly contact the dehumidification process of finishing air with air, concentrated solution enters E, F, the G module of bottom successively, guarantee solution concentration suitable in each solution tank, make dehumidification process continue to carry out.Gas-liquid direct contact modules A in top carries out inside the evaporative cooling process of air and cold water, produces 1 pair of air-supply of aerial cooler that cold water enters the bottom and wet cooling such as carries out.Thus, produce sufficiently dry, temperature is near the air-supply of room temperature.
This fresh air processor group is formed (see figure 1) by the level Four full heat recovery device, wherein first three grade full heat recovery device utilizes return air evaporative cooling to produce the low-temperature receiver of cold water as the solution dehumidification process, mainly three air-cold water by top directly contact evaporative cooling module B, C, three air-solution of D and bottom directly contact dehumidification module E, F, in G and the connection, the solution of lower module-cold water plate type heat exchanger 3 is formed, three dehumidification module E of bottom, F, link to each other by solution conduit between the G, concentrated solution is entered from the E module, successively by three grades of dehumidification modules, upper module B, C, D all installs water pump 5, lower module E, F, G all installs solution circulation pump 3, realizes that cold water or solution are in each inside modules circulation; The afterbody full heat recovery device mainly reclaims indoor return air energy and is used for the air-supply cooling, form by the return air evaporative cooling modules A on top and the aerial cooler 1 of bottom, water circulating pump 5 is installed between modules A and the aerial cooler 1, is realized the circulation of cold water between upper module and aerial cooler.Simultaneously, when solving machine startup the return air parameter is relatively poor constantly, air-supply is difficult to reach the problem of claimed condition, adds the bypass air channel between air-supply and air-return duct, and on bypass air channel and air-return duct air-valve 4 is installed.
The course of work of this fresh air processor group is as follows:
In first three grade full heat recovery device, corresponding with the direct contact modules E of the air-solution of bottom, F, the G respectively dehumidification process that constitutes three grades of the direct contact modules B of the air-cold water on top, C, D.Full recuperation of heat for every grade, upper module cold water is under the driving of self-loopa water pump 5, flow into plate type heat exchanger from the module bottom tank, cooling plate type heat exchanger opposite side solution enters the evaporative cooling module afterwards, flows down by liquid distributor and evenly soaks filler, carry out the evaporative cooling process with return air, return air flows out module at the corresponding levels after being heated humidification, flows into the module bottom tank after cold water is cooled, thereby finishes the cold water circulation in the module; Lower module solution is under the driving of self-circulating pump 3, flow into plate type heat exchanger 2 from the module bottom solution tank, enter the spray module afterwards, the process liquid distributor flows down and soaks filler, solution and the air that is evenly distributed on filler conducts heat, mass transfer, after being dehumidified, air flows out module at the corresponding levels, solution flows into the solution circulation of finishing in the bottom solution groove in the module, simultaneously since solution with the wet exchange process of air heat in absorbed moisture, the solution that flows into solution tank is thinning, needs to replenish concentrated solution and makes dehumidification process continue to carry out.For reaching the ventilation state of sufficiently dry, and reduce the loss of solution, the wet exchange process of air heat, uses the dry run of three grades of new wind of above-mentioned full heat recovery module series connection realization.Concentrated solution (under the driving of solution system main circulation pump) at first enters in the bottom solution groove of afterbody dehumidification module E, opposite side from solution tank flows out afterwards, and then enters F, G dehumidification module successively, and the concentration of solution is thinning successively, derive weak solution at last, send into regenerator regeneration.The flow direction of concentrated solution and new wind facies are anti-, the flow direction and the return air of new wind are opposite, thereby cold water heat exchange, the denseest solution of having realized the denseest solution minimum with temperature (B, C, D are relatively) contact the process of the wet exchange of heat with the most dried new wind, make the driving force of air handling process even, improved the treatment effeciency of new wind processing procedure.Thus, the operating condition in summer utilizes return air evaporative cooling to produce cold water, reduces the solution temperature that sprays by plate type heat exchanger, improves the dehumidifying effect of solution to air, has taken away the latent heat that dehumidification process discharges simultaneously.Utilize concentrated solution successively by modules at different levels, guarantee the solution concentration of modules at different levels, finish the dehumidification process of new wind.
After the full heat recovery module dehumidifying of first three level, can access the ventilation state of comparison drying, but wind pushing temperature is low inadequately, for obtaining the enough low air-supply of temperature (near room temperature), top increases one-level return air evaporative cooling modules A, aerial cooler 1 of lower disposed.The air-supply of cold water after entering aerial cooler 1 cooling and dehumidifying under the driving of water circulating pump 5 through the modules A generation, flow out afterwards, and then inflow modules A, this moment, cold water temperature raise, soak filler by evenly flowing down behind the liquid distributor at module top, return air and cold water carry out the evaporative cooling process in filler, and the cold water temperature step-down flows back in the tank of bottom, and return air flows out modules A after being heated humidification.Through the new wind sufficiently dry behind the aerial cooler, temperature satisfies the requirement of air-supply near room temperature.The heat recovery module of utilizing modules A and aerial cooler 1 to form is further utilized the energy of return air, and makes unit possess the enough low function of control wind pushing temperature.
Claims (1)
1, utilizes the full recovery type heat thermal-drive solution ventilation of return air evaporative cooling unit, it is characterized in that: described unit contains the direct contact modules of gas-liquid (A, B, C, D, E, F, G), plate type heat exchanger (2), solution self-circulating pump (3), air-valve (4), water pump (5); Described unit is divided into upper and lower two-layer passage, and the upper strata passage is the return air treatment channel, and it is made up of the direct contact modules of gas-liquid (A, B, C, D), and lower floor is new wind treatment channel, and it is made up of the direct contact modules of gas-liquid (E, F, G); The direct contact modules of described upper strata gas-liquid (B, C, D) and the three grades of full recuperations of heat of corresponding composition respectively of lower floor (E, F, G) module, every grade of upper and lower intermodule is linked to each other by plate type heat exchanger (2); Described in the direct contact modules of gas-liquid (B, C, D) inside modules, utilize return air evaporative cooling to produce the solution of cold water cooling plate type heat exchanger opposite side, after being cooled, solution in the direct contact modules of lower module gas-liquid (E, F, G), sprays, directly contact the dehumidification process of finishing air with air, concentrated solution enters the direct contact modules of gas-liquid (E, F, the G) module of lower floor successively, guarantee solution concentration suitable in each solution tank, make dehumidification process continue to carry out; The evaporative cooling process of air and cold water is carried out in the direct contact modules of upper strata gas-liquid (A) inside, produces aerial cooler (1) that cold water enters lower floor air-supply such as is carried out at wet cooling.
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| CNB200610012263XA CN100427841C (en) | 2006-06-15 | 2006-06-15 | Whole-thermal reclaiming type thermal-drive solution ventilation processor set by using evaporative cooling of return air |
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| CNB200610012263XA CN100427841C (en) | 2006-06-15 | 2006-06-15 | Whole-thermal reclaiming type thermal-drive solution ventilation processor set by using evaporative cooling of return air |
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| CN100427841C CN100427841C (en) | 2008-10-22 |
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Cited By (10)
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| CN101893298A (en) * | 2010-08-06 | 2010-11-24 | 于向阳 | Air-conditioning method with function of passive cooling of indoor air through water circulation and device |
| CN101995067A (en) * | 2010-12-05 | 2011-03-30 | 于向阳 | Air conditioning system combined by indirect evaporation chiller plant and traditional mechanical refrigerating unit |
| CN102052714A (en) * | 2010-12-24 | 2011-05-11 | 浙江盾安人工环境股份有限公司 | Wind-exhaust and heat-recycle air-conditioning system of multi-stage and all-condition continuous heat pump |
| CN102128477A (en) * | 2011-04-20 | 2011-07-20 | 北京华创瑞风空调科技有限公司 | Solution-desiccant air handling unit |
| CN102914000A (en) * | 2012-11-07 | 2013-02-06 | 刘拴强 | Fresh air humidification air-conditioning unit |
| CN104456875A (en) * | 2014-11-18 | 2015-03-25 | 东南大学 | Fresh air treatment device for indirect evaporative cooling return air total heat recovery |
| CN104807116A (en) * | 2015-04-17 | 2015-07-29 | 东南大学 | Solution total heat recovery and condensation dehumidification compound fresh air processing device |
| CN104864525A (en) * | 2015-04-17 | 2015-08-26 | 东南大学 | Fresh air treatment device capable of indirect evaporative cooling |
| CN105299784A (en) * | 2015-11-02 | 2016-02-03 | 西安交通大学 | Heat and mass recovery type solution membrane dehumidification system based on membrane distillation and dehumidification method |
| CN106627619A (en) * | 2016-11-25 | 2017-05-10 | 深圳沃海森科技有限公司 | Ventilation system with allover heat-exchanger on the bottom of high speed railway seat |
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| JP2002054838A (en) * | 2000-08-10 | 2002-02-20 | Seibu Giken Co Ltd | Dehumidifying air conditioning apparatus |
| JP4015351B2 (en) * | 2000-08-25 | 2007-11-28 | 三機工業株式会社 | Total heat exchanger |
| CN100439805C (en) * | 2005-05-31 | 2008-12-03 | 清华大学 | Heat recovery type fresh air treatment system of using hygroscopic solution as circulating working medium |
| CN2896100Y (en) * | 2006-06-15 | 2007-05-02 | 清华大学 | All-heat-recovering type heat-driven solution fresh-air fan group using return-air steaming to cool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101893298A (en) * | 2010-08-06 | 2010-11-24 | 于向阳 | Air-conditioning method with function of passive cooling of indoor air through water circulation and device |
| WO2012016543A1 (en) * | 2010-08-06 | 2012-02-09 | Yu Xiangyang | Air conditioning method with internal air-water cycle passive cooling and device for same |
| CN101995067A (en) * | 2010-12-05 | 2011-03-30 | 于向阳 | Air conditioning system combined by indirect evaporation chiller plant and traditional mechanical refrigerating unit |
| CN101995067B (en) * | 2010-12-05 | 2012-06-27 | 于向阳 | Air conditioning system combined by indirect evaporation chiller plant and traditional mechanical refrigerating unit |
| CN102052714A (en) * | 2010-12-24 | 2011-05-11 | 浙江盾安人工环境股份有限公司 | Wind-exhaust and heat-recycle air-conditioning system of multi-stage and all-condition continuous heat pump |
| CN102052714B (en) * | 2010-12-24 | 2013-06-12 | 浙江盾安人工环境股份有限公司 | Wind-exhaust and heat-recycle air-conditioning system of multi-stage and all-condition continuous heat pump |
| CN102128477A (en) * | 2011-04-20 | 2011-07-20 | 北京华创瑞风空调科技有限公司 | Solution-desiccant air handling unit |
| CN102914000A (en) * | 2012-11-07 | 2013-02-06 | 刘拴强 | Fresh air humidification air-conditioning unit |
| CN104456875A (en) * | 2014-11-18 | 2015-03-25 | 东南大学 | Fresh air treatment device for indirect evaporative cooling return air total heat recovery |
| CN104456875B (en) * | 2014-11-18 | 2017-05-31 | 东南大学 | A kind of Fresh air handing device of indirect evaporating-cooling return air total heat recovery |
| CN104807116A (en) * | 2015-04-17 | 2015-07-29 | 东南大学 | Solution total heat recovery and condensation dehumidification compound fresh air processing device |
| CN104864525A (en) * | 2015-04-17 | 2015-08-26 | 东南大学 | Fresh air treatment device capable of indirect evaporative cooling |
| CN104807116B (en) * | 2015-04-17 | 2017-11-03 | 东南大学 | A kind of solution total heat recovery and dehumidification by condensation are combined Fresh air handing device |
| CN105299784A (en) * | 2015-11-02 | 2016-02-03 | 西安交通大学 | Heat and mass recovery type solution membrane dehumidification system based on membrane distillation and dehumidification method |
| CN105299784B (en) * | 2015-11-02 | 2018-10-30 | 西安交通大学 | A kind of backheat based on membrane distillation time matter type solution film dehumidification system and dehumanization method |
| CN106627619A (en) * | 2016-11-25 | 2017-05-10 | 深圳沃海森科技有限公司 | Ventilation system with allover heat-exchanger on the bottom of high speed railway seat |
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