CN1862121A - Temp and moisture independent control type air-conditioning system using solution as auxiliary working substance - Google Patents

Temp and moisture independent control type air-conditioning system using solution as auxiliary working substance Download PDF

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Publication number
CN1862121A
CN1862121A CN 200610012267 CN200610012267A CN1862121A CN 1862121 A CN1862121 A CN 1862121A CN 200610012267 CN200610012267 CN 200610012267 CN 200610012267 A CN200610012267 A CN 200610012267A CN 1862121 A CN1862121 A CN 1862121A
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CN
China
Prior art keywords
solution
air
conditioning
liquid reservoir
evaporimeter
Prior art date
Application number
CN 200610012267
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Chinese (zh)
Inventor
陈晓阳
刘晓华
刘拴强
谢晓云
江亿
Original Assignee
清华大学
北京华创瑞风空调科技有限公司
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Application filed by 清华大学, 北京华创瑞风空调科技有限公司 filed Critical 清华大学
Priority to CN 200610012267 priority Critical patent/CN1862121A/en
Publication of CN1862121A publication Critical patent/CN1862121A/en

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Abstract

The inventive air-conditioning system comprises refrigeration and solution cycle systems. The refrigeration cycle system has a compressor, an evaporator, an expansion valve and a condenser. The solution cycle system has a dehumidifier, a regenerating unit, a solution reservoir, a solution pump, a mixed solution valve and a control valve. Because of adding a solution cycle system, the invention can realize the accuracy independent control of temperature and humidity.

Description

Utilize temperature, the moisture independent control type air-conditioning system of solution for auxiliary working substance

Technical field

The present invention relates to the solution that utilizes that a kind of field of heating ventilation air conditioning uses is temperature, the moisture independent control type air-conditioner of auxiliary working substance, belongs to energy technology field.

Background technology

Air-conditioner generally adopts the humidity that the method for dehumidification by condensation is regulated air at present, this way need be cooled to air could realize below the dew-point temperature task of dehumidifying, under many circumstances, though air humidity (water capacity) meets the requirements but temperature is low excessively, also needing further again, heat could make that air supply parameter reaches requirement, though this mode can be controlled temperature, the humidity of air-supply more accurately, processing procedure exists sub-cooled and the double energy waste of heat again.And in a lot of buildings, reheat machine is not set in the air-conditioning system, and the Cryogenic air behind the process dehumidification by condensation is directly sent into indoor, causes the indoor situation that presents low temperature and high relative humidity, personnel's thermal comfort is relatively poor, and promptly this conventional air-conditioning system can't satisfy the control requirement of indoor temperature and humidity simultaneously.Dehumidification by condensation needs the low-temperature receiver of lower temperature, and from thermodynamic principles, the kind of refrigeration cycle evaporating temperature is low more, causes the efficient of system low more.In addition, on the surface of condensed water that dehumidification by condensation produces, grow various moulds easily, worsen indoor air quality, cause multiple because the disease that air-conditioning causes attached to coil pipe.The basic reason that these problems occur is that the cooling of air and dehumidifying are handled simultaneously, because cooling and dehumidification process is essential different, occurs a lot of contradictions and problem easily.

At present also have patent to relate to the air-conditioner of solution dehumidification aspect, use evaporator cools solution, then spray solution in filler, utilize the moisture pick-up properties of solution air is lowered the temperature and to dehumidify.Because solution carries out the wet exchange of adiabatic heat with air in filler, the flow of solution is very big usually, causes system's conveying energy consumption big.And solution is cooled earlier and sprays in filler, causes the air-conditioning equipment complexity, and volume is big.

Summary of the invention

The object of the present invention is to provide a kind of can realize that accurate temperature, humidity independently controls to adjust utilize temperature, the moisture independent control type air-conditioning system of solution for auxiliary working substance.

The present invention proposes utilizes temperature, the moisture independent control type air-conditioning system of solution for auxiliary working substance, and it is characterized in that: described air-conditioning system comprises cooling cycle system and solution recycle system; Described cooling cycle system contains: compressor (1), evaporimeter (2), expansion valve (3) and condenser (4); Described solution recycle system contains: dehydrating unit (A), regenerating unit (B), solution liquid reservoir (5) and solution liquid reservoir (6), solution pump (7) and solution pump (8), liquid mixing valve (9), control valve (10) and water storing tank (11);

Described compressor (1) respectively with dehydrating unit (A) in evaporimeter (2), the condenser (4) in the regenerating unit (B) link to each other by pipeline;

The bottom of described dehydrating unit (A) links to each other with solution liquid reservoir (5) by pipeline, and the bottom of described regenerating unit (B) links to each other with solution liquid reservoir (6) by pipeline;

Described new wind directly contacts with concentrated solution, by cool-down dehumidification in dehydrating unit (A); The heat that dehumidification process discharges is taken away by evaporimeter in the kind of refrigeration cycle (2); Enter solution liquid reservoir (5) through the weak solution after the dehumidifying, be delivered to regenerating unit (B) by solution pump (7) and concentrate regeneration; The heat of regenerative process is provided by the heat exhaust of condenser in the kind of refrigeration cycle; Concentrated solution after concentrating enters concentrated solution liquid reservoir (6), is delivered to the liquid distributor of dehydrating unit (A) by solution pump (8), carries out the wet exchange of heat with new wind, finishes whole solution and circulates.

In above-mentioned air-conditioning system, described in dehydrating unit (A), by the concentration of adjusting spray solution and the evaporating temperature of evaporimeter (2), obtain suitable air supply parameter; The concentration of described spray solution is regulated ratio dense, weak solution by liquid mixing valve (9) and is realized.

This novel air-conditioner that the present invention proposes, comparing with general air-conditioner has increased solution recycle system, and refrigeration system and solution recycle system are combined, and can realize that accurate temperature, humidity independently control to adjust.Here the solution that is adopted is a kind of solution (as lithium bromide, lithium chloride solution etc.) with moisture pick-up properties, under lower temperature, the solution surface steam partial pressure is lower, can absorb airborne steam, under higher temperature, the solution surface steam partial pressure is higher, can discharge steam to air; Thereby realize adjusting to humidity in the air.Because adopt the mode of solution dehumidification in the air-conditioner, evaporimeter is not born humidity load, the comparable conventional air-conditioning of evaporating temperature system improves about 10 ℃, and the refrigerating efficiency of system improves 10~30%.This air-conditioner can not produce condensate water, has eliminated big pollution sources, and adopts the solution-treated air, and the effect that salting liquid has sterilization and purifies air helps improving indoor air quality.In addition, some area needs air-conditioning system that air is added wet process in the winter time, generally also needs other humidification apparatus.The air-conditioner that this patent relates to can be easy to realize the humidification requirement in winter by the adjusting control to solution concentration.

Description of drawings

Fig. 1 is the operation principle schematic diagram of air-conditioner of the present invention.

The specific embodiment

Referring to Fig. 1, solid line is represented refrigeration working medium among the figure, and dotted line is represented solution.Whole air-conditioning system is made up of a kind of refrigeration cycle (compressor 1, evaporimeter 2, expansion valve 3, condenser 4) and a solution circulation.

This air-conditioner system comprises: cooling cycle system and solution recycle system.Cooling cycle system comprises: compressor 1, evaporimeter 2, expansion valve 3 and condenser 4, solution recycle system comprises: dehydrating unit A, regenerating unit B, solution liquid reservoir 5 and 6, solution pump 7 and 8 and control valve etc.The refrigerating capacity of kind of refrigeration cycle is used for cooling solution, strengthens its dehumidifying effect, and the heat exhaust of condenser is used for thermal regeneration solution.New wind (or indoor return air) is in device A, and are heated humidification summer in cool-down dehumidification, winter.This air-conditioner can be by control evaporating temperature and spray solution concentration, with air-treatment to the ventilation state that requires.

New wind (or return air) directly contacts with concentrated solution, by cool-down dehumidification in dehydrating unit A; The heat that dehumidification process discharges is taken away by evaporimeter in the kind of refrigeration cycle 2.Because the solution moisture absorption process carries out under cooling condition, moisture sorption effect is than good a lot of under the adiabatic condition, and solution concentration changes greatly.Enter weak solution liquid reservoir 5 through the weak solution after the dehumidifying, be delivered to regenerating unit B by solution pump 7 and concentrate regeneration.The heat of regenerative process is provided by the heat exhaust of condenser in the kind of refrigeration cycle.Concentrated solution after concentrating enters concentrated solution liquid reservoir 6, is delivered to the liquid distributor of dehydrating unit A by solution pump 8, carries out the wet exchange of heat with new wind, circulates thereby finish whole solution.

In dehydrating unit A, can pass through to regulate the concentration of spray solution and the evaporating temperature of evaporimeter 2, thus the air supply parameter that obtains suiting.The concentration of spray solution can be regulated ratio dense, weak solution by liquid mixing valve 9 and be realized.

During summer operation, the evaporimeter 2 and the condenser 4 of refrigeration system are seen Fig. 1 in the position of air-conditioner.During winter operation, can adopt cross valve to realize the mutual conversion of evaporimeter and condenser, cold machine is operated under the heat pump operating mode.Because winter, outdoor temperature was very low, for preventing solution crystallization, the solution cyclic part only carries out the circulation in the chain-dotted line frame among Fig. 1.Open valve 9, valve-off 10,11 is water storing tanks, can be from 5 moisturizings of trend liquid reservoir, with the concentration of control spray solution.The concentration by regulator solution and the temperature of condenser surface just can realize the warming and humidifying processing procedure to air-supply.

Claims (2)

1, utilize temperature, the moisture independent control type air-conditioning system of solution for auxiliary working substance, it is characterized in that: described air-conditioning system comprises cooling cycle system and solution recycle system; Described cooling cycle system contains: compressor (1), evaporimeter (2), expansion valve (3) and condenser (4); Described solution recycle system contains: dehydrating unit (A), regenerating unit (B), solution liquid reservoir (5) and solution liquid reservoir (6), solution pump (7) and solution pump (8), liquid mixing valve (9), control valve (10) and water storing tank (11);
Described compressor (1) respectively with dehydrating unit (A) in evaporimeter (2), the condenser (4) in the regenerating unit (B) link to each other by pipeline;
The bottom of described dehydrating unit (A) links to each other with solution liquid reservoir (5) by pipeline, and the bottom of described regenerating unit (B) links to each other with solution liquid reservoir (6) by pipeline;
Described new wind directly contacts with concentrated solution, by cool-down dehumidification in dehydrating unit (A); The heat that dehumidification process discharges is taken away by evaporimeter in the kind of refrigeration cycle (2); Enter solution liquid reservoir (5) through the weak solution after the dehumidifying, be delivered to regenerating unit (B) by solution pump (7) and concentrate regeneration; The heat of regenerative process is provided by the heat exhaust of condenser in the kind of refrigeration cycle; Concentrated solution after concentrating enters concentrated solution liquid reservoir (6), is delivered to the liquid distributor of dehydrating unit (A) by solution pump (8), carries out the wet exchange of heat with new wind, finishes whole solution and circulates.
2, according to the described air-conditioning system of claim 1, it is characterized in that: described in dehydrating unit (A), by the concentration of adjusting spray solution and the evaporating temperature of evaporimeter (2), obtain suitable air supply parameter; The concentration of described spray solution is regulated ratio dense, weak solution by liquid mixing valve (9) and is realized.
CN 200610012267 2006-06-15 2006-06-15 Temp and moisture independent control type air-conditioning system using solution as auxiliary working substance CN1862121A (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101806477A (en) * 2010-04-01 2010-08-18 万建红 Fresh air atomization temperature and humidity regulating split air conditioner
CN102353110A (en) * 2011-09-17 2012-02-15 林勇 Self-spray dehumidifying air conditioner
CN102353103A (en) * 2011-09-17 2012-02-15 林勇 Solution dehumidifying air-conditioner
CN102519098A (en) * 2011-12-19 2012-06-27 清华大学 Variable-pressure sealed type evaporative cooling refrigeration system
CN102563786A (en) * 2012-01-12 2012-07-11 西安交通大学 Refrigeration and heat pump composite energy system with independently controlled temperature and independently controlled humidity
WO2012139248A1 (en) * 2011-04-12 2012-10-18 Tsinghua University Heat and cold sources of temperature and humidity independent control air conditioning system
CN102798183A (en) * 2012-08-10 2012-11-28 南京韩威南冷制冷集团有限公司 Solution air-conditioning unit
CN102901159A (en) * 2012-11-06 2013-01-30 刘拴强 Solution heating and humidifying air-conditioning unit
CN102997343A (en) * 2012-12-13 2013-03-27 澳蓝(福建)实业有限公司 Solution type constant-temperature dehumidifier and control method thereof
CN103104957A (en) * 2013-03-04 2013-05-15 北京华创瑞风空调科技有限公司 Reverse-flow solution desiccant fresh air handling unit driven by heat pump
CN104075393A (en) * 2014-06-20 2014-10-01 邓桂林 Solution damp and heat adjusting pump type fresh air handling unit
CN104566719A (en) * 2014-12-29 2015-04-29 北京格瑞力德空调科技有限公司 Anti-freezing air conditioner
CN104728957A (en) * 2015-03-26 2015-06-24 苏州惠林节能材料有限公司 Dehumidifying/humidifying device and method
CN104728956A (en) * 2015-03-26 2015-06-24 苏州惠林节能材料有限公司 High-efficiency dehumidifier/humidifier
CN105299785A (en) * 2015-11-19 2016-02-03 青岛微恒工程有限公司 Humidity control device
CN105299786A (en) * 2015-11-26 2016-02-03 南京迪泽尔空调设备有限公司 Solution thermal recovery unit structure
CN106895518A (en) * 2017-01-11 2017-06-27 广东美的制冷设备有限公司 A kind of air-conditioner and its humidity control method
CN107062444A (en) * 2016-12-31 2017-08-18 安徽工业大学 A kind of self-regulating heat balance solution damping Fresh air handling units and its operation method
CN107255336A (en) * 2017-06-09 2017-10-17 东南大学 A kind of heat pump driven solution dehumidification Fresh air handing unit of single air channel compact
CN107388616A (en) * 2017-06-07 2017-11-24 东南大学 The absorption refrigeration dehumidifying integrated air conditioning system of low grade heat energy driving
CN107525166A (en) * 2016-06-21 2017-12-29 清华大学 A kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled
CN108507047A (en) * 2017-02-28 2018-09-07 青岛海尔智能技术研发有限公司 Air-conditioning system and its control method
CN109708330A (en) * 2018-11-30 2019-05-03 安徽欧瑞达电器科技有限公司 A kind of cell liquid recycling unit

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101806477A (en) * 2010-04-01 2010-08-18 万建红 Fresh air atomization temperature and humidity regulating split air conditioner
CN101806477B (en) * 2010-04-01 2012-09-05 万建红 Fresh air atomization temperature and humidity regulating split air conditioner
WO2012139248A1 (en) * 2011-04-12 2012-10-18 Tsinghua University Heat and cold sources of temperature and humidity independent control air conditioning system
CN103562657A (en) * 2011-04-12 2014-02-05 清华大学 Heat and cold sources of temperature and humidity independent control air conditioning system
CN102353110A (en) * 2011-09-17 2012-02-15 林勇 Self-spray dehumidifying air conditioner
CN102353103A (en) * 2011-09-17 2012-02-15 林勇 Solution dehumidifying air-conditioner
CN102519098A (en) * 2011-12-19 2012-06-27 清华大学 Variable-pressure sealed type evaporative cooling refrigeration system
CN102519098B (en) * 2011-12-19 2013-12-11 清华大学 Variable-pressure sealed type evaporative cooling refrigeration system
CN102563786A (en) * 2012-01-12 2012-07-11 西安交通大学 Refrigeration and heat pump composite energy system with independently controlled temperature and independently controlled humidity
CN102798183A (en) * 2012-08-10 2012-11-28 南京韩威南冷制冷集团有限公司 Solution air-conditioning unit
CN102901159B (en) * 2012-11-06 2015-03-11 刘拴强 Solution heating and humidifying air-conditioning unit
CN102901159A (en) * 2012-11-06 2013-01-30 刘拴强 Solution heating and humidifying air-conditioning unit
CN102997343A (en) * 2012-12-13 2013-03-27 澳蓝(福建)实业有限公司 Solution type constant-temperature dehumidifier and control method thereof
CN102997343B (en) * 2012-12-13 2015-07-15 澳蓝(福建)实业有限公司 Solution type constant-temperature dehumidifier and control method thereof
CN103104957A (en) * 2013-03-04 2013-05-15 北京华创瑞风空调科技有限公司 Reverse-flow solution desiccant fresh air handling unit driven by heat pump
CN104075393A (en) * 2014-06-20 2014-10-01 邓桂林 Solution damp and heat adjusting pump type fresh air handling unit
CN104566719A (en) * 2014-12-29 2015-04-29 北京格瑞力德空调科技有限公司 Anti-freezing air conditioner
CN104728956B (en) * 2015-03-26 2018-01-02 苏州惠林节能材料有限公司 High efficiency dehumidifying/humidifying device
CN104728956A (en) * 2015-03-26 2015-06-24 苏州惠林节能材料有限公司 High-efficiency dehumidifier/humidifier
CN104728957B (en) * 2015-03-26 2018-01-02 苏州惠林节能材料有限公司 A kind of dehumidifying/humidifying device and method
CN104728957A (en) * 2015-03-26 2015-06-24 苏州惠林节能材料有限公司 Dehumidifying/humidifying device and method
CN105299785A (en) * 2015-11-19 2016-02-03 青岛微恒工程有限公司 Humidity control device
CN105299786A (en) * 2015-11-26 2016-02-03 南京迪泽尔空调设备有限公司 Solution thermal recovery unit structure
CN107525166A (en) * 2016-06-21 2017-12-29 清华大学 A kind of liquid desiccant air conditioning unit of heat pump driven pre-cooling type internally cooled
CN107062444A (en) * 2016-12-31 2017-08-18 安徽工业大学 A kind of self-regulating heat balance solution damping Fresh air handling units and its operation method
CN107062444B (en) * 2016-12-31 2019-05-07 安徽工业大学 A kind of self-regulating heat balance solution damping Fresh air handling units and its operation method
CN106895518A (en) * 2017-01-11 2017-06-27 广东美的制冷设备有限公司 A kind of air-conditioner and its humidity control method
CN108507047A (en) * 2017-02-28 2018-09-07 青岛海尔智能技术研发有限公司 Air-conditioning system and its control method
CN108507047B (en) * 2017-02-28 2020-10-02 青岛海尔智能技术研发有限公司 Air conditioning system and control method thereof
CN107388616A (en) * 2017-06-07 2017-11-24 东南大学 The absorption refrigeration dehumidifying integrated air conditioning system of low grade heat energy driving
CN107388616B (en) * 2017-06-07 2019-08-20 东南大学 The absorption refrigeration dehumidifying integrated air conditioning system of low grade heat energy driving
CN107255336A (en) * 2017-06-09 2017-10-17 东南大学 A kind of heat pump driven solution dehumidification Fresh air handing unit of single air channel compact
CN109708330A (en) * 2018-11-30 2019-05-03 安徽欧瑞达电器科技有限公司 A kind of cell liquid recycling unit

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