CN202109601U - Heat and moisture sectional process air-conditioner device combining radiant cooling - Google Patents

Heat and moisture sectional process air-conditioner device combining radiant cooling Download PDF

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Publication number
CN202109601U
CN202109601U CN2011201948380U CN201120194838U CN202109601U CN 202109601 U CN202109601 U CN 202109601U CN 2011201948380 U CN2011201948380 U CN 2011201948380U CN 201120194838 U CN201120194838 U CN 201120194838U CN 202109601 U CN202109601 U CN 202109601U
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China
Prior art keywords
magnetic valve
water
cooling
air
input
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Expired - Fee Related
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CN2011201948380U
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Chinese (zh)
Inventor
张小松
金星
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Southeast University
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Southeast University
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Abstract

The utility model discloses a heat and moisture sectional process air-conditioner device combining radiant cooling. The device mainly comprises a water cooling unit, an air processer, a radiation coiler, a water pump, electromagnetic valves and pipelines. The system uses chilled water prepared by the water cooling unit for air cooling and dehumidification, and then sends into the radiation coiler of a suspended ceiling or a floor for radiant cooling, so as to realize the heat and moisture load sectional process in a room. The radiation coiler cooling undertakes partial sensible heat load in the room, and the wind supply after dehumidification undertakes the rest sensible heat load in the room and the indoor moisture load, and prevents moisture condensation on a radiation surface. Because the chilled water is used for dehumidification and radiant cooling in the sectional manner, the supplied and returned water temperature difference is about 7 DEG C to 10 DEG C. The cooling circulation of the water cooling unit adopts a non-azeotropic refrigerant, and enables the chilled water and the refrigerant to be matched well on temperature in a heat exchange through utilizing the temperature glide characteristic of the non-azeotropic refrigerant, thereby improving unit performance factors.

Description

In conjunction with the wet segment processing aircondition of the heat of radiation cooling
Technical field
The utility model relates to a kind of wet segment processing aircondition of heat and method that combines radiation cooling, the technical field that belongs to the refrigerated air-conditioning system design and make.
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.
Research shows that compare with traditional air-conditioning system, radiation cooling (mainly comprising furred ceiling radiation cooling and floor radiant cooling) has many outstanding advantages both at home and abroad in recent years.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, and the cooling ability of system is weak (particularly floor radiant cooling system), and the domestic and international researcher of problem who exists to radiation cooling also proposes many solutions; Such as reducing the air humidity in the room with methods such as replacement aeration or solution dehumidification ventilations; 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: the purpose of the utility model is that evaporating temperature is lower in the existing air-conditioning system of solution; Pump energy consumption is bigger; System complex and radiation cooling system cooling ability are not enough, are prone to problems such as dewfall, and a kind of wet segment processing aircondition of heat that combines radiation cooling efficiently is provided.
Technical scheme: the utility model combines the wet segment processing air-conditioning system of the heat of radiation cooling to comprise handpiece Water Chilling Units, air processor, radiant coil, water pump, pipeline and several magnetic valves.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 through first pipeline, and the output in room connects second input of air processor through second pipeline.
System flow is in the utility model: the chilled water that handpiece Water Chilling Units is produced is through getting into air processor through first magnetic valve after the pressurization of water pump; Water temperature raises behind the chilled water cooling air; Then get into the radiant coil released cold quantity, carry out next one circulation thereby last chilled water backwater gets into the handpiece Water Chilling Units cooling through the 3rd magnetic valve.The return air in room mixes in air processor with new wind, carries 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 utility model is designed 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 gets into the final Returning water unit of radiant coil after water pump gets into air processor cooling air.Paralleling model: open first magnetic valve, second magnetic valve and the 4th magnetic valve; Close the 3rd magnetic valve; Chilled water is handled air through one tunnel entering air processor behind the water pump, and one the tunnel gets into 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, direct Returning water unit after the heat exchange of chilled water entering air processor.The radiation cooling pattern: close first magnetic valve, the 3rd magnetic valve and the 4th magnetic valve, open second magnetic valve, chilled water directly gets into Returning water unit after the radiant coil heat exchange.
Beneficial effect: the beneficial effect of the utility model is:
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, and the system capacity utilization rate is high, 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 has been solved the problem that radiation cooling system cooling ability is not enough, radiating surface is prone to dewfall;
5. this device different operational modes (parallel connection, series connection and isolated operation) with radiation cooling that under different loading condictions, can realize blowing, thus the Load Regulation rate of system improved, strengthened the range of application of system.
Description of drawings
Fig. 1 is the wet segment processing aircondition sketch map of heat that the utility model combines 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
Further specify the specific embodiment of the utility model in conjunction with accompanying drawing 1: 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 through first pipeline 9, and the output in room 11 meets the second input 2c of air processor through second pipeline 10.
The basic model of system's operation is: the chilled water that handpiece Water Chilling Units 1 is produced at first gets into air processor 2 and carries out heat exchange with air; 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 through floor or furred ceiling to the room released cold quantity, and in evaporimeter, carries out heat exchange from the last Returning water unit 1 of chilled water that radiant coil flows out with cold-producing medium.
System's chilled water is owing to will at first cool off air and flow into radiant coil subsequently and to the room cold is provided; 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, utilizes 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 utility model is designed 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 gets into radiant coil 3 final Returning water units 1 after water pump 4 gets into 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 gets into air processor 2 through water pump 4 backs one tunnel and handles air, and one the tunnel gets into 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, direct Returning water unit 1 after 2 heat exchange of chilled water entering air processor.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 gets into Returning water unit 1 after radiant coil 3 heat exchange.

Claims (1)

1. wet segment processing aircondition of the heat that combines 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) through first pipeline (9), and the air output of room (11) connects second input (2c) of air processor (2) through second pipeline (10).
CN2011201948380U 2011-06-10 2011-06-10 Heat and moisture sectional process air-conditioner device combining radiant cooling Expired - Fee Related CN202109601U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201948380U CN202109601U (en) 2011-06-10 2011-06-10 Heat and moisture sectional process air-conditioner device combining radiant cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201948380U CN202109601U (en) 2011-06-10 2011-06-10 Heat and moisture sectional process air-conditioner device combining radiant cooling

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CN202109601U true CN202109601U (en) 2012-01-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102230652A (en) * 2011-06-10 2011-11-02 东南大学 Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply
CN103105015A (en) * 2013-03-07 2013-05-15 西南科技大学 Energy-saving type double-evaporator two-stage compression refrigerating equipment used for floor radiant cooling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102230652A (en) * 2011-06-10 2011-11-02 东南大学 Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply
CN103105015A (en) * 2013-03-07 2013-05-15 西南科技大学 Energy-saving type double-evaporator two-stage compression refrigerating equipment used for floor radiant cooling

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120111

Termination date: 20150610

EXPY Termination of patent right or utility model