CN102230652A - Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply - Google Patents
Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply Download PDFInfo
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- CN102230652A CN102230652A CN2011101558045A CN201110155804A CN102230652A CN 102230652 A CN102230652 A CN 102230652A CN 2011101558045 A CN2011101558045 A CN 2011101558045A CN 201110155804 A CN201110155804 A CN 201110155804A CN 102230652 A CN102230652 A CN 102230652A
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Abstract
The invention discloses a heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply. The device mainly comprises a cold water unit, an air treater, a radiation coil pipe, a water pump, an electromagnetic valve and a pipeline. In a system, chilled water obtained by the cold water unit is used for cooling and dehumidifying air, and is supplied to a ceiling or a floor radiation coil pipe for radiation cold supply to realize segmented treatment of heat and humidity loads in a room. The radiation coil pipe is used for supplying cold and bearing a part of sensible heat load in the room, and dehumidified supply air is used for bearing the other part of sensible heat load in the room and indoor humidity load and preventing a radiation surface from moisture condensation. Chilled water is segmentally applied to dehumidification and radiation cold supply, and the temperature difference between supply water and return water is about 7-10 DEG C. A refrigeration cycle of a water chilling unit is realized with a non-azeotropic refrigerant, and good temperature matching of chilled water and the refrigerant in the heat exchanger is realized by means of the temperature slippage characteristic of the non-azeotropic refrigerant, so that the performance coefficient of the unit is increased.
Description
Technical field
The present invention relates to wet segment processing aircondition of a kind of heat and method, the technical field that belongs to the refrigerated air-conditioning system design and make in conjunction with radiation cooling.
Background technology
Traditional air-conditioning system generally adopts cryogenic freezing water that air is carried out cool-down dehumidification and handles, and in order to reach the purpose of dehumidifying, the temperature of chilled water is lower, and this just needs lower evaporating temperature, so the coefficient of performance of unit is lower, and energy consumption is higher.In addition, water pump and cooling tower power consumption proportion in the air-conditioning system total energy consumption are increasing, common handpiece Water Chilling Units chilled water supply backwater temperature difference is generally 5 ℃, if can adopt the chilled water circulation of the big temperature difference then can reduce pump energy consumption, the flow that has a narrow range of temperature greatly of chilled water circulates and can reduce the heat exchange effect of heat exchanger inner fluid again but then.
Studies show that both at home and abroad in recent years, compare that radiation cooling (mainly comprising furred ceiling radiation cooling and floor radiant cooling) has many outstanding advantages with traditional air-conditioning system.Yet radiation cooling also has the shortcoming of himself, mainly show as if floor surface temperature is lower than air dew point temperature surface meeting dewfall, system applies is in the bigger area of refrigeration duty in addition, the cooling ability of system is weak (particularly floor radiant cooling system), the domestic and international researcher of problem who exists at radiation cooling also proposes many solutions, such as the air humidity that reduces with methods such as replacement aeration or solution dehumidification ventilations in the room, but such system needs two covering devices, complex structure, and investment of equipment and operation and maintenance cost are also bigger.
Summary of the invention
Technical problem: it is lower to the objective of the invention is to solve in the existing air-conditioning system evaporating temperature, pump energy consumption is bigger, system complex and radiation cooling system cooling ability deficiency, problems such as easy dewfall provide a kind of efficiently in conjunction with wet segment processing aircondition of the heat of radiation cooling and method.
Technical scheme: the present invention comprises handpiece Water Chilling Units, air processor, radiant coil, water pump, pipeline and several magnetic valves in conjunction with the wet segment processing air-conditioning system of the heat of radiation cooling.The chilled water output water pump input of handpiece Water Chilling Units, the water pump output connects the input of first magnetic valve and the input of second magnetic valve respectively, the first input end of the output termination air processor of first magnetic valve, first output of air processor connects the input of the 3rd magnetic valve and the input of the 4th magnetic valve respectively, the input of the output termination radiant coil of the output of second magnetic valve and the 3rd magnetic valve, the input of the output termination handpiece Water Chilling Units of radiant coil, the input of the output termination handpiece Water Chilling Units of the 4th magnetic valve, second output of air processor connects the input in room by first pipeline, and the output in room connects second input of air processor by second pipeline.
The chilled water that handpiece Water Chilling Units is produced among the present invention is big temperature difference circulation, supply backwater temperature difference is about 7 ℃-10 ℃, and in order to realize the big temperature difference circulation of chilled water efficiently, unit adopts non-azeotropic refrigerant, utilize the temperature glide characteristic of non-azeotropic refrigerant to realize cold-producing medium and chilled water good temperature coupling in evaporimeter, thereby improve the heat exchange effect of cold-producing medium and chilled water, make kind of refrigeration cycle approach the Lorentz circulation, and then improve unit performance.
Because the big temperature difference of chilled water circulates and the employing of non-azeotropic refrigerant, the evaporating temperature of unit is than the evaporating temperature height of common handpiece Water Chilling Units among the present invention.The flow circulation that has a narrow range of temperature greatly of chilled water also can reduce pump energy consumption in addition.
System flow is among the present invention: the chilled water that handpiece Water Chilling Units is produced enters air processor through after the pressurization of water pump by first magnetic valve, water temperature raises behind the chilled water cooling air, then enter the radiant coil released cold quantity, carry out next one circulation thereby last chilled water backwater enters the handpiece Water Chilling Units cooling through the 3rd magnetic valve.The return air in room and new wind mix in air processor, carry out heat exchange with chilled water then, and the air behind the cool-down dehumidification is sent into humidity load and the part sensible heat load that the room is born in the room.And other a part of sensible heat load in room is born in radiant coil and room heat exchange.
Owing to the refrigeration duty in room can change along with the variation of outdoor environment and indoor thermal source, the present invention designs the air-conditioning system operational mode under different load.Series model: this is the basic model of system's design, closes second magnetic valve and the 4th magnetic valve, opens first magnetic valve and the 3rd magnetic valve, and chilled water enters the final Returning water unit of radiant coil after water pump enters air processor cooling air.Paralleling model: open first magnetic valve, second magnetic valve and the 4th magnetic valve, close the 3rd magnetic valve, one the tunnel enters air processor processing air behind the chilled water process water pump, and one the tunnel enters radiant coil, and heat exchange two-way chilled water later is mixed into handpiece Water Chilling Units again.Full air-treatment pattern: close second magnetic valve and the 3rd magnetic valve, open first magnetic valve and the 4th magnetic valve, chilled water enters after the air processor heat exchange directly Returning water unit.The radiation cooling pattern: close first magnetic valve, the 3rd magnetic valve and the 4th magnetic valve, open second magnetic valve, chilled water directly enters Returning water unit after the radiant coil heat exchange.
Beneficial effect: the invention has the beneficial effects as follows:
1. indoor humidity load and part sensible heat load are born in air-supply in this system, and radiation cooling is born other sensible heat load, has realized hot wet segment processing, system capacity utilization rate height, good energy-conserving effect;
2. utilize the temperature glide characteristic of non-azeotropic refrigerant to realize chilled water and the cold-producing medium good temperature coupling in heat exchanger, thereby improve the heat exchange effect of heat exchanger, approach the Lorentz circulation and further improve the unit performance coefficient;
3. this system has improved the evaporating temperature of handpiece Water Chilling Units, thereby has improved the coefficient of performance of system, and the chilled water circulation of the simultaneously big temperature difference has reduced the water pump power consumption and further reached purpose of energy saving;
4. this device utilization is ventilated and have been solved the problem of radiation cooling system cooling ability deficiency, the easy dewfall of radiating surface;
5. this device can be realized blowing under different loading condictions and the different operational modes of radiation cooling (in parallel, series connection and isolated operation), thereby has improved the Load Regulation rate of system, has strengthened the range of application of system.
Description of drawings
Fig. 1 is that the present invention is in conjunction with the wet segment processing aircondition schematic diagram of the heat of radiation cooling
Have among the figure: handpiece Water Chilling Units 1, air processor 2, air processor first input end 2a, the air processor first output 2b, the air processor second input 2c, the air processor second output 2d, radiant coil 3, water pump 4, first magnetic valve 5, second magnetic valve 6, the 3rd magnetic valve 7, the 4th magnetic valve 8, first pipeline 9, second pipeline 10, room 11.
The specific embodiment
1 further specify the specific embodiment of the present invention in conjunction with the accompanying drawings: chilled water output water pump 4 inputs of handpiece Water Chilling Units 1, water pump 4 outputs connect the input of first magnetic valve 5 and the input of second magnetic valve 6 respectively, the first input end 2a of the output termination air processor 2 of first magnetic valve 5, the first output 2b of air processor 2 connects the input of the 3rd magnetic valve 7 and the input of the 4th magnetic valve 8 respectively, the input of the output termination radiant coil 3 of the output of second magnetic valve 6 and the 3rd magnetic valve 7, the input of the output termination handpiece Water Chilling Units 1 of radiant coil 3, the input of the output termination handpiece Water Chilling Units 1 of the 4th magnetic valve 8, the second output 2d of air processor 2 connects the input in room 11 by first pipeline 9, and the output in room 11 meets the second input 2c of air processor by second pipeline 10.
The basic model of system's operation is: the chilled water that handpiece Water Chilling Units 1 is produced at first enters air processor 2 and air carries out heat exchange, cool-down dehumidification air later is admitted to room 11 and bears space moisture load and part sensible heat load, and the chilled water later that heats up is sent in the radiant coil 3 by floor or furred ceiling to the room released cold quantity, and carries out heat exchange from the last Returning water unit 1 of chilled water that radiant coil flows out with cold-producing medium in evaporimeter.
System's chilled water is owing to will at first cool off air and flow into radiant coil subsequently and provide cold to the room, the circulation temperature difference of chilled water is bigger than the common handpiece Water Chilling Units chilled water circulation temperature difference, and in order to realize the big temperature difference circulation of chilled water, and do not reduce the heat exchange effect of medium in the evaporimeter, handpiece Water Chilling Units adopts non-azeotropic refrigerant, utilize the temperature glide characteristic of non-azeotropic refrigerant to realize chilled water and the cold-producing medium good temperature coupling in heat exchanger, thereby strengthen the heat exchange effect, improve unit performance.
Owing to the refrigeration duty in room can change along with the variation of outdoor environment and indoor thermal source, the present invention designs the operational mode of this air-conditioning system under different load.Series model: close second magnetic valve 6 and the 4th magnetic valve 8, open first magnetic valve 5 and the 3rd magnetic valve 7, chilled water enters radiant coil 3 final Returning water units 1 after water pump 4 enters air processor 2 cooling air.Paralleling model: open first magnetic valve 5, second magnetic valve 6 and the 4th magnetic valve 8, close the 3rd magnetic valve 7, chilled water enters air processor 2 through water pump 4 backs one tunnel and handles air, and one the tunnel enters radiant coil 3, and heat exchange two-way chilled water later is mixed into handpiece Water Chilling Units 1 again.Full air-treatment pattern: close second magnetic valve 6 and the 3rd magnetic valve 7, open first magnetic valve 5 and the 4th magnetic valve 8, chilled water enters after air processor 2 heat exchange directly Returning water unit 1.The radiation cooling pattern: close first magnetic valve 5, the 3rd magnetic valve 7 and the 4th magnetic valve 8, open second magnetic valve 6, chilled water directly enters Returning water unit 1 after radiant coil 3 heat exchange.
Claims (4)
1. one kind in conjunction with the wet segment processing aircondition of the heat of radiation cooling, chilled water output water pump (4) input that it is characterized in that handpiece Water Chilling Units (1), water pump (4) output connects the input of first magnetic valve (5) and the input of second magnetic valve (6) respectively, the first input end (2a) of the output termination air processor (2) of first magnetic valve (5), first output (2b) of air processor (2) connects the input of the 3rd magnetic valve (7) and the input of the 4th magnetic valve (8) respectively, the output of the output of second magnetic valve (6) and the 3rd magnetic valve (7) connects the input of radiant coil (3) respectively, and the output of the output of radiant coil (3) and the 4th magnetic valve (8) connects the input of handpiece Water Chilling Units (1) respectively; Second output (2d) of air processor (2) connects the air input in room (11) by first pipeline (9), and the air output of room (11) connects second input (2c) of air processor (2) by second pipeline (10).
2. wet segment processing method of heat of device according to claim 1, it is characterized in that chilled water that handpiece Water Chilling Units (1) produces at first enters air processor (2) via first magnetic valve (5) again and air is carried out cool-down dehumidification handles after water pump (4) pressurization, air after the processing is sent into humidity load and the part sensible heat load that the room is born in room (11), and enter radiant coil (3) to room (11) released cold quantity via the 3rd magnetic valve (7) again through the chilled water after the heat exchange for the first time, radiant coil (3) is born room (11) remainder sensible heat load, the chilled water Returning water unit (1) after last and radiant coil (3) heat exchange thereby and the cold-producing medium heat exchange carry out the circulation of next round.
3. according to the wet segment processing method of the heat of the described device of claim 2, it is characterized in that the chilled water supply backwater temperature difference is bigger than common handpiece Water Chilling Units chilled water supply backwater temperature difference, this device chilled water supply backwater temperature difference is 7 ℃-10 ℃, and in order to realize the big temperature difference circulation of chilled water efficiently, handpiece Water Chilling Units (1) adopts non-azeotropic refrigerant.
4. according to the wet segment processing method of the heat of the described device of claim 2, it is characterized in that the wet segment processing aircondition of heat passes through to regulate the different operational modes that magnetic valve is realized system;
Series model: close second magnetic valve (6) and the 4th magnetic valve (8), open first magnetic valve (5) and the 3rd magnetic valve (7), chilled water enters radiant coil (3) again after water pump (4) enters air processor (2) cooling air, last Returning water unit (1);
Paralleling model: open first magnetic valve (5), second magnetic valve (6) and the 4th magnetic valve (8), close the 3rd magnetic valve (7), chilled water enters air processor (2) through water pump (4) Hou Yilu and handles air, one the tunnel enters radiant coil (3), and heat exchange two-way chilled water later mixes Returning water unit (1) again; Full air-treatment pattern: close second magnetic valve (6) and the 3rd magnetic valve (7), open first magnetic valve (5) and the 4th magnetic valve (8), chilled water enters direct Returning water unit (1) after air processor (2) heat exchange; The radiation cooling pattern: close first magnetic valve (5), the 3rd magnetic valve (7) and the 4th magnetic valve (8), open second magnetic valve (6), chilled water directly enters radiant coil (3) cooling, then Returning water unit (1).
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| CN2011101558045A CN102230652A (en) | 2011-06-10 | 2011-06-10 | Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply |
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| CN2011101558045A CN102230652A (en) | 2011-06-10 | 2011-06-10 | Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384553A (en) * | 2011-11-07 | 2012-03-21 | 上海克络蒂新能源科技有限公司 | Improved structure of air source heat pump unit for temperature and humidity independent control air-conditioning system |
| CN102434923A (en) * | 2011-12-30 | 2012-05-02 | 泰豪科技股份有限公司 | Air conditioner cooling device with refrigerant serving as intermediate cooling medium |
| CN102538112A (en) * | 2012-03-20 | 2012-07-04 | 上海理工大学 | Household heat and humidity separate control radiation air conditioning system and control method thereof |
| CN102946706A (en) * | 2012-10-23 | 2013-02-27 | 东南大学常州研究院 | Novel air conditioning system in machine room based on underfloor air distribution and air distribution method thereof |
| CN104214869A (en) * | 2014-09-17 | 2014-12-17 | 中山市蓝水能源科技发展有限公司 | Highly-efficient chilled water storage device |
| CN104329759A (en) * | 2014-11-10 | 2015-02-04 | 上海理工大学 | Temperature control dehumidification system and temperature control dehumidification method for fresh air of radiation air conditioner |
| CN104534578A (en) * | 2014-12-26 | 2015-04-22 | 东南大学 | Induced draught and radiation integrated air conditioning device with single water chilling unit |
| CN105042725A (en) * | 2015-09-23 | 2015-11-11 | 深圳市海吉源科技有限公司 | Overhigh temperature difference energy storage central air conditioning system and overhigh temperature difference energy storage control method |
| CN105841358A (en) * | 2016-03-25 | 2016-08-10 | 西安工程大学 | Evaporative cooling air-conditioning system usable in summer and winter in combination with roof surface water storage |
| CN105928102A (en) * | 2016-04-22 | 2016-09-07 | 浙江大学 | Air conditioning system with combination of radiation top plate and displacement ventilation |
| CN106468465A (en) * | 2015-08-25 | 2017-03-01 | 沈阳乐金空调净化工程有限公司 | Winter energy reclaims refrigeration system and its refrigerating method |
| CN107917490A (en) * | 2017-12-21 | 2018-04-17 | 柏瑞德（昆山）环境设备有限公司 | Intelligent fresh air radiation air-conditioner suspended ceiling integration system |
| CN109682036A (en) * | 2018-12-29 | 2019-04-26 | 天津商业大学 | A method of it adjusting coolant-temperature gage and determines the radiation air-conditioner anti-condensation best safety temperature difference |
| CN109682037A (en) * | 2018-12-29 | 2019-04-26 | 天津商业大学 | Adjust the method that water supply flow determines the radiation air-conditioner anti-condensation best safety temperature difference |
| CN109945355A (en) * | 2019-01-30 | 2019-06-28 | 东南大学 | Air-supply end and capillary network radiation tail end combined control system |
| CN112228983A (en) * | 2020-10-15 | 2021-01-15 | 东南大学 | Heat-humidity ratio adjustable radiation cooling and fresh air integrated system and operation method |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384553A (en) * | 2011-11-07 | 2012-03-21 | 上海克络蒂新能源科技有限公司 | Improved structure of air source heat pump unit for temperature and humidity independent control air-conditioning system |
| CN102434923A (en) * | 2011-12-30 | 2012-05-02 | 泰豪科技股份有限公司 | Air conditioner cooling device with refrigerant serving as intermediate cooling medium |
| CN102538112A (en) * | 2012-03-20 | 2012-07-04 | 上海理工大学 | Household heat and humidity separate control radiation air conditioning system and control method thereof |
| CN102946706A (en) * | 2012-10-23 | 2013-02-27 | 东南大学常州研究院 | Novel air conditioning system in machine room based on underfloor air distribution and air distribution method thereof |
| CN104214869A (en) * | 2014-09-17 | 2014-12-17 | 中山市蓝水能源科技发展有限公司 | Highly-efficient chilled water storage device |
| CN104329759A (en) * | 2014-11-10 | 2015-02-04 | 上海理工大学 | Temperature control dehumidification system and temperature control dehumidification method for fresh air of radiation air conditioner |
| CN104329759B (en) * | 2014-11-10 | 2017-05-10 | 上海理工大学 | Temperature control dehumidification system and temperature control dehumidification method for fresh air of radiation air conditioner |
| CN104534578A (en) * | 2014-12-26 | 2015-04-22 | 东南大学 | Induced draught and radiation integrated air conditioning device with single water chilling unit |
| CN104534578B (en) * | 2014-12-26 | 2017-07-07 | 东南大学 | A kind of single handpiece Water Chilling Units induced draught and radiation integrated air-conditioning device |
| CN106468465A (en) * | 2015-08-25 | 2017-03-01 | 沈阳乐金空调净化工程有限公司 | Winter energy reclaims refrigeration system and its refrigerating method |
| CN106468465B (en) * | 2015-08-25 | 2022-05-10 | 沈阳乐金空调净化工程有限公司 | Winter energy recovery refrigerating system and refrigerating method thereof |
| CN105042725A (en) * | 2015-09-23 | 2015-11-11 | 深圳市海吉源科技有限公司 | Overhigh temperature difference energy storage central air conditioning system and overhigh temperature difference energy storage control method |
| CN105841358A (en) * | 2016-03-25 | 2016-08-10 | 西安工程大学 | Evaporative cooling air-conditioning system usable in summer and winter in combination with roof surface water storage |
| CN105841358B (en) * | 2016-03-25 | 2018-05-15 | 西安工程大学 | With reference to the Winter-summer dual purpose Evaporative Cooling Air-conditioning System of roofing water storage |
| CN105928102A (en) * | 2016-04-22 | 2016-09-07 | 浙江大学 | Air conditioning system with combination of radiation top plate and displacement ventilation |
| CN107917490A (en) * | 2017-12-21 | 2018-04-17 | 柏瑞德（昆山）环境设备有限公司 | Intelligent fresh air radiation air-conditioner suspended ceiling integration system |
| CN109682036A (en) * | 2018-12-29 | 2019-04-26 | 天津商业大学 | A method of it adjusting coolant-temperature gage and determines the radiation air-conditioner anti-condensation best safety temperature difference |
| CN109682037A (en) * | 2018-12-29 | 2019-04-26 | 天津商业大学 | Adjust the method that water supply flow determines the radiation air-conditioner anti-condensation best safety temperature difference |
| CN109945355A (en) * | 2019-01-30 | 2019-06-28 | 东南大学 | Air-supply end and capillary network radiation tail end combined control system |
| CN112228983A (en) * | 2020-10-15 | 2021-01-15 | 东南大学 | Heat-humidity ratio adjustable radiation cooling and fresh air integrated system and operation method |
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Application publication date: 20111102 |