CN103075767B - Two low-temperature receiver Fresh air handling units - Google Patents

Two low-temperature receiver Fresh air handling units Download PDF

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Publication number
CN103075767B
CN103075767B CN201310013283.9A CN201310013283A CN103075767B CN 103075767 B CN103075767 B CN 103075767B CN 201310013283 A CN201310013283 A CN 201310013283A CN 103075767 B CN103075767 B CN 103075767B
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fresh air
handling units
air handling
condenser
source system
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CN201310013283.9A
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CN103075767A (en
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杨仕超
余鹏
罗运有
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Guangdong Provincial Academy of Building Research Group Co Ltd
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Guangdong Provincial Academy of Building Research Group Co Ltd
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Abstract

A kind of two low-temperature receiver Fresh air handling units, comprises Fresh air handling units housing, is provided with compressor, the first condenser, the second condenser, throttling arrangement, evaporimeter, air inlet, filter, air outlet, chilled water for return pipe and surface cooler in described Fresh air handling units housing; Described compressor, the first condenser, the second condenser, throttling arrangement are connected by copper pipe successively with evaporimeter, self cold source system of composition Fresh air handling units; Described surface cooler connects outside central air conditioning cold source system by chilled water for return pipe.Tool of the present invention has the following advantages: (1) the present invention carries independent cooling source system, quit work at transition season central air conditioning low-temperature receiver, during air conditioning duct system all-fresh air energy-saving run, the low-temperature receiver of self can be used to carry out dehumidification treatments to new wind, avoid occurring that indoor moist, mouldy phenomenon occurs; (2) use Fresh air handling units of the present invention, the new air temperature sent at transition season is moderate, ensures the comfortableness of transition season indoor temperature.

Description

Two low-temperature receiver Fresh air handling units
Technical field
The invention belongs to refrigeration air-conditioner field, be specifically related to a kind ofly to cool to building conveying new wind carrying out, the equipment of the process such as dehumidifying.
Background technology
Along with the increase of construction scope, the application of central air-conditioning system is also more general, but at transition season, the operational efficiency of central air-conditioning system is lower, is economize energy, the normal mode adopted in the operation of transition season all-fresh air.When all-fresh air runs, air conditioning water system is out of service, does not carry out cooling to air-conditioner set, and air-conditioner set can not carry out heat and wet treatment to the new wind in outdoor, and new for outdoor wind is directly sent into indoor by air-conditioner set.
Due to transition season, particularly southern area " going back to Nan Tian " season at the end of spring and the beginning of summer and " yellow plum sky " season of the Yangtze river basin, outside air humidity is larger, when air-conditioning system all-fresh air runs, owing to there is no chilled water supply, cannot dehumidification treatments be carried out, the outdoor air of humidity directly be sent into the indoor wet environment that will indoor formation made severe, have a strong impact on the life of indoor occupant, work quality, and may cause that indoor article is mouldy to degenerate.In addition, chilled water is provided to carry out dehumidification treatments even if open handpiece Water Chilling Units at transition season to air-conditioner set, but the air-conditioner set in southern area does not generally possess reheating function, air-conditioning temperature after dehumidifying is lower, but natively on the low side in transition season outdoor temperature, indoor refrigeration duty is little, the cold wind after dehumidifying is sent into indoor, indoor temperature will be made too low, the thermal comfort that impact is indoor.
Summary of the invention
The object of the present invention is to provide a kind of two low-temperature receiver Fresh air handling units, this Fresh air handling units carries cold source system, can as common Fresh air handling units, adopt the low-temperature receiver of central air conditioning cold source system to carry out air-conditioning process to air season at air-conditioning; At the transition season of humidity, the cold source system that Fresh air handling units can be utilized to carry carries out dehumidification treatments to air, without the need to outside central air conditioning low-temperature receiver.
The object of the invention is to take following technical scheme to realize:
A kind of two low-temperature receiver Fresh air handling units, comprise Fresh air handling units housing, it is characterized in that: be provided with compressor, the first condenser, the second condenser, throttling arrangement, evaporimeter, air inlet, filter, air outlet, chilled water in described Fresh air handling units housing for return pipe and surface cooler; Described compressor, the first condenser, the second condenser, throttling arrangement are connected by copper pipe successively with evaporimeter, self cold source system of composition Fresh air handling units; Described surface cooler connects outside central air conditioning cold source system by chilled water for return pipe; Described filter is located at air inlet.
As improvement of the present invention, described air outlet is provided with pressure fan; Self cold source system of described Fresh air handling units also comprises cooling fan, and described cooling fan is located on the first condenser, outwards dispels the heat for strengthening the first condenser.
The refrigerant flow direction of self cold source system of described Fresh air handling units is: cold-producing medium enters the first condenser then to the second condenser after compressor compression, evaporimeter is flow to after throttling arrangement throttling, return compressor low-pressure end, complete a circulation, self cold source system of composition Fresh air handling units, for carrying out dehumidification treatments without during outside central air conditioning low-temperature receiver to new wind, its processing procedure is that outdoor new wind carries out cooling and dehumidifying through evaporimeter, again through wet intensifications such as the second condenser carry out, unnecessary heat is discharged by the first condenser, realize sending into the new air-dry dry of indoor at transition season, temperature is suitable,
The central air conditioning cold source system of described surface cooler connecting building, uses the cold of central air conditioning cold source system season at air-conditioning, carry out cooling process to new wind.
Compared with common Fresh air handling units, tool of the present invention has the following advantages:
(1) the present invention carries independent cooling source system, quit work at transition season central air conditioning low-temperature receiver, during air conditioning duct system all-fresh air energy-saving run, the low-temperature receiver of self can be used to carry out dehumidification treatments to new wind, while realizing air conditioner system energy saving operation, ensure to send into indoor fresh air dry, avoid occurring that indoor moist, mouldy phenomenon occurs.
(2) use Fresh air handling units of the present invention, the new air temperature sent at transition season is moderate, ensures the comfortableness of transition season indoor temperature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that cold-producing medium of the present invention runs schematic diagram.
Detailed description of the invention
Two low-temperature receiver Fresh air handling units as shown in Figure 1, comprise Fresh air handling units housing 6, be provided with compressor 1, first condenser 2, second condenser 3, throttling arrangement 4, evaporimeter 5, air inlet 7, filter 8, air outlet 10, chilled water in Fresh air handling units housing 6 for return pipe 11 and surface cooler 12.Compressor 1, first condenser 2, second condenser 3, throttling arrangement 4 are connected by copper pipe successively with evaporimeter 5, self cold source system of composition Fresh air handling units; Surface cooler 12 connects outside central air conditioning cold source system by chilled water for return pipe 11; Filter 8 is located at air inlet 7 place; Air outlet 10 is provided with pressure fan 9; Self cold source system of parent's blower fan group also comprises cooling fan 13, and cooling fan 13 is located on the first condenser 2.
The refrigerant flow direction of self cold source system of the present embodiment Fresh air handling units as shown in Figure 2, cold-producing medium enters the first condenser 2 then to the second condenser 3 after compressor compression, after throttling arrangement 4 throttling, flow to evaporimeter 5, return the low-pressure end of compressor 1, complete a circulation.
Second condenser 3 of the present embodiment is for the new wind after heating and dehumidification, and the first condenser 2 is for discharging unnecessary heat.
Operation principle of the present invention is:
In air-conditioning season, self cold source system of Fresh air handling units does not work, surface cooler 12 uses the low-temperature receiver of external central air conditioning cold source system, outdoor new wind enters Fresh air handling units from air inlet 7, dust removal and filtration is carried out through filter 8, then carry out cooling down process through surface cooler 12, do not process when flowing through evaporimeter 5 and the second condenser 3, finally send into indoor by pressure fan 9.
At the transition season of humidity, as " going back to Nan Tian " season of southern area and " yellow plum sky " season of Yangtze-Huaihe River Valley, surface cooler 12 is supplied without outside central air conditioning low-temperature receiver, quits work.Self cold source system work of Fresh air handling units, carries out dehumidification treatments to new wind.Its course of work is: outdoor new wind enters Fresh air handling units from air inlet 7, carries out dust removal and filtration, by out-of-work surface cooler 12, through evaporimeter 5 cooling and dehumidifying, after the second condenser 3 heat temperature raising, finally send into indoor by pressure fan 9 through filter 8.The unnecessary heat of refrigeration system is discharged by the first condenser 2.
At the transition season of drying, as autumn, outdoor air is dry, and temperature is moderate, without the need to carrying out heat and wet treatment to new wind.Now, the surface cooler 12 of Fresh air handling units all quits work with self cold source system.Outdoor new wind enters Fresh air handling units from air inlet 7, carries out dust removal and filtration, then through out-of-work surface cooler 12, evaporimeter 5 and the second condenser 3, send into indoor by pressure fan 9 through filter 8.

Claims (3)

1. a two low-temperature receiver Fresh air handling units, comprise Fresh air handling units housing (6), it is characterized in that: be provided with compressor (1), the first condenser (2), the second condenser (3), throttling arrangement (4), evaporimeter (5), air inlet (7), filter (8), air outlet (10), chilled water in described Fresh air handling units housing (6) for return pipe (11) and surface cooler (12); Described compressor (1), the first condenser (2), the second condenser (3), throttling arrangement (4) are connected by copper pipe successively with evaporimeter (5), self cold source system of composition Fresh air handling units; Described surface cooler (12) connects outside central air conditioning cold source system by chilled water for return pipe (11); Described filter (8) is located at air inlet (7) place; Described pair of low-temperature receiver Fresh air handling units is when air-conditioning season, and self cold source system does not work, and surface cooler (12) uses the cold of central air conditioning cold source system, carries out cooling down process to new wind; Described pair of low-temperature receiver Fresh air handling units is when the transition season of humidity, and surface cooler (12) quits work, and adopts self cold source system to carry out dehumidification treatments to new wind; Described pair of low-temperature receiver Fresh air handling units is when the transition season of drying, and surface cooler (12) and self cold source system all do not work, and the new wind processed through filter (8) is directly sent into indoor by pressure fan (9).
2. according to claim 1 pair of low-temperature receiver Fresh air handling units, is characterized in that: described air outlet (10) is provided with pressure fan (9).
3. according to claim 1 pair of low-temperature receiver Fresh air handling units, is characterized in that: self cold source system of described Fresh air handling units also comprises cooling fan (13), and described cooling fan (13) is located on the first condenser (2).
CN201310013283.9A 2013-01-15 2013-01-15 Two low-temperature receiver Fresh air handling units Active CN103075767B (en)

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CN103075767B true CN103075767B (en) 2015-10-28

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061630B (en) * 2014-07-07 2016-08-24 叶立英 Modular fresh air processor
CN104482614B (en) * 2014-11-17 2017-07-25 广东申菱环境系统股份有限公司 A kind of pair of low-temperature receiver sensible heat processing high-temperature air conditioner unit and its control method
CN104764126A (en) * 2015-03-30 2015-07-08 广东申菱空调设备有限公司 Double-cold-source variable frequency precise air conditioning unit
CN111854007A (en) * 2019-04-28 2020-10-30 上海科力玛数据科技有限公司 High-water-temperature and large-temperature-difference air conditioner terminal equipment
CN110617567A (en) * 2019-08-30 2019-12-27 江苏致远高科能源科技有限公司 Method for designing double-cold-source fresh air dehumidifier according to cold quantity division ratio
CN110631232B (en) * 2019-10-12 2021-01-08 广州市华德工业有限公司 Control method of cooling unit and storage medium
CN112432282A (en) * 2020-12-01 2021-03-02 江苏知民通风设备有限公司 New fan of two cold sources dehumidification

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN101509712A (en) * 2009-03-06 2009-08-19 广东美的电器股份有限公司 Steam compression type air conditioner dehumidification dual-purpose integration machine and control method thereof
CN201875825U (en) * 2010-11-04 2011-06-22 珠海格力电器股份有限公司 Split type fresh air dehumidifier unit
CN202149548U (en) * 2011-07-06 2012-02-22 珠海格力电器股份有限公司 Integral horizontal type fresh air dehumidifier
CN203083044U (en) * 2013-01-15 2013-07-24 广东省建筑科学研究院 Double-cold-resource fresh air handling unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101509712A (en) * 2009-03-06 2009-08-19 广东美的电器股份有限公司 Steam compression type air conditioner dehumidification dual-purpose integration machine and control method thereof
CN201875825U (en) * 2010-11-04 2011-06-22 珠海格力电器股份有限公司 Split type fresh air dehumidifier unit
CN202149548U (en) * 2011-07-06 2012-02-22 珠海格力电器股份有限公司 Integral horizontal type fresh air dehumidifier
CN203083044U (en) * 2013-01-15 2013-07-24 广东省建筑科学研究院 Double-cold-resource fresh air handling unit

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