CN201740129U - Two-stage surface cooler and direct evaporating and cooling compound type fresh air fan unit - Google Patents

Two-stage surface cooler and direct evaporating and cooling compound type fresh air fan unit Download PDF

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Publication number
CN201740129U
CN201740129U CN2010202668490U CN201020266849U CN201740129U CN 201740129 U CN201740129 U CN 201740129U CN 2010202668490 U CN2010202668490 U CN 2010202668490U CN 201020266849 U CN201020266849 U CN 201020266849U CN 201740129 U CN201740129 U CN 201740129U
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China
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surface cooler
stage surface
fresh air
cooler
level surface
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Expired - Fee Related
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CN2010202668490U
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Chinese (zh)
Inventor
黄翔
尧德华
吴志湘
汪超
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Xian Polytechnic University
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Xian Polytechnic University
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  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

The utility model discloses a two-stage surface cooler and direct evaporating and cooling compound type fresh air fan unit which comprises a filter, a first-stage surface cooler, a second-stage surface cooler, a direct evaporating and cooling device and a fan which are sequentially arranged in a unit shell along the air inlet direction; the fresh air fan unit further comprises a high-temperature water cooling unit communicated with the return water at a sensible heat end, wherein the high-temperature water cooling unit is connected with the second-stage surface cooler by a pipeline; the second-stage surface cooler is connected with the first-stage surface cooler by a pipeline; and the first-stage surface cooler is connected with the sensible heat end by a pipeline. The fresh air fan unit is more reasonable in the design of a functional section and wider in the application scope, greatly improves the efficiency, reduces the energy consumption, and meets the demand of an air-conditioning system for fresh air treatment all the year round.

Description

A kind of twin-stage surface cooler and the direct compound new blower fan group of evaporative cooling
Technical field
The utility model belongs to air conditioner technical field, relates to a kind of twin-stage surface cooler and the direct compound new blower fan group of evaporative cooling.
Background technology
New blower fan group is mainly used to new wind is carried out preliminary treatment, to satisfy the requirement of high accuracy purification air-conditioning to new wind, also can be used for handling in half central air-conditioning system such as public building fan-coil unit with fresh air the equipment of new wind simultaneously.In half central system, new blower fan group is an indispensable part.At present, processed air in the common new blower fan group and surface cooler only carry out once the wet exchange of heat, and air-treatment is limited in one's ability and temperature drop low-temperature receiver water is also little.The new blower fan group of existing evaporative cooling is widely used, but is subjected to the restriction of meteorological condition, only is applicable to dry area, inapplicable middle and high humidity area, and also it is big to exist volume, the shortcoming that temperature drop is limited.
Summary of the invention
The purpose of this utility model provides a kind of twin-stage surface cooler and the direct compound new blower fan group of evaporative cooling, not only can use in dry area, and can be used for middle and high humidity area, is not subjected to the restriction of meteorological condition.
The technical scheme that the utility model adopted is, a kind of twin-stage surface cooler and the direct compound new blower fan group of evaporative cooling, the filter, I level surface cooler, II level surface cooler, direct evaporative cooler and the blower fan that are included in the machine unit shell, set gradually by the air intake direction, also comprise the high temperature cold water unit that communicates with the terminal backwater of sensible heat, the high temperature cold water unit is connected with II level surface cooler by pipeline, II level surface cooler is connected by pipeline with I level surface cooler, and I level surface cooler is connected with the sensible heat end by pipeline.
Characteristics of the present utility model also are,
The high temperature cold water unit is provided with water pump with the pipeline that II level surface cooler is connected.
II level surface cooler is provided with water pump with the pipeline that I level surface cooler is connected.
The characteristics of the compound new blower fan group of the utility model are:
(1) adopt the twin-stage surface cooler, two surface coolers are in the use that is together in series aspect wind path and the water route two, and I level surface cooler mainly plays the cooling effect, and II level surface cooler mainly plays exsiccation.
(2) low-temperature receiver adopts 12 ℃ the cold water that the high temperature cold water unit provides, and provides 7 ℃ cold water to compare with traditional handpiece Water Chilling Units, has improved the COP value of handpiece Water Chilling Units greatly.
(3) summer, twin-stage surface cooler work, direct evaporative cooler dry cooling condition operation (on the filler not shower water), the direct evaporative cooler of this moment plays water fender; Not water flowing of transition season twin-stage surface cooler in spring and autumn, just direct evaporative cooler work; Winter, I level surface cooler used as heater, and direct evaporative cooler uses as humidifier.
(4) processed new wind and chilled water adopt the countercurrent heat-transfer mode, and the heat transfer temperature difference of water is increased, and the temperature eventually of water improves, and has saved the output of high temperature cold water unit greatly.
Description of drawings
Fig. 1 is the structural representation of the compound new blower fan group of the utility model;
Fig. 2 is the compound new blower fan unit in winter operation schematic diagram of the utility model.
Among the figure, 1. filter, 2. I level surface cooler, 3. II level surface cooler, 4. direct evaporative cooler, 5. blower fan, 6. water pump, 7. high temperature cold water unit, 8. thermal source.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The utility model twin-stage surface cooler and the direct compound new blower fan group of evaporative cooling, structure as shown in Figure 1, the filter 1, I level surface cooler 2, II level surface cooler 3, direct evaporative cooler 4 and the blower fan 5 that are included in the machine unit shell, set gradually by the air intake direction, also comprise the high temperature cold water unit 7 that communicates with the terminal backwater of sensible heat, high temperature cold water unit 7 is connected with II level surface cooler 3 by pipeline, II level surface cooler 3 is connected by pipeline with I level surface cooler 2, and I level surface cooler 2 is connected with the sensible heat end by pipeline.On high temperature cold water unit 7 and the pipeline that II level surface cooler 3 is connected, be provided with water pump 6 on II level surface cooler 3 and the pipeline that I level surface cooler 2 is connected.
The compound new blower fan group of the utility model is integrated in twin-stage surface cooler and direct evaporative cooler in the air conditioner fresh air unit, outdoor new wind enters in this unit, earlier through I level surface cooler, then through II level surface cooler, pass through direct evaporative cooler at last, the temperature drop of processed like this air, bigger than enthalpy drop; The cold water elder generation water that the high temperature cold water unit is produced is pumped into II level surface cooler, then delivering to the cold-working of I level table through the cold backwater that has heated up of II level table for supplying water, then being used for the sensible heat end through the backwater behind the I level surface cooler, processed new wind of this employing and chilled water countercurrent heat-transfer mode, the heat transfer temperature difference of water is increased, the temperature eventually of water improves, and has saved the output of high temperature cold water unit greatly.And the also more traditional handpiece Water Chilling Units of COP value of high temperature cold water unit greatly improves.
The course of work of the compound new blower fan group of the utility model:
Various Seasonal realizes by opening different functional sections.
During summer operation, when the outdoor air conditions point drops on the left side of room air state point, open I level surface cooler 2, II level surface cooler 3 and direct evaporative cooler 4, make outdoor air reach the ventilation state point.High temperature cold water unit 7 provides 12 ℃ water at this moment, this water at low temperature is delivered to II level surface cooler 3 with water pump 6 earlier, then the backwater after II level surface cooler 3 heats up is delivered to I level surface cooler 2 as water supply, I level surface cooler 2 is the water supply of 18 ℃ of left and right sides backwater as the sensible heat end then, and the backwater that last sensible heat is terminal about 21 ℃ is got back to high temperature cold water unit 7.The twin-stage surface cooler mainly plays the cooling effect, and the main effect of direct evaporative cooler 4 is cooling humidifications.
When the outdoor air conditions point drops on the right side of room air state point, open I level surface cooler 2 and II level surface cooler 3, make outdoor air reach the ventilation state point.High temperature cold water unit 7 provides 12 ℃ water at this moment, this water at low temperature is delivered to II level surface cooler 3 with water pump 6 earlier, then the backwater after II level surface cooler 3 heats up is delivered to I level surface cooler 2 as water supply, I level surface cooler 2 is the water supply of 18 ℃ of left and right sides backwater as the sensible heat end then, and the backwater that last sensible heat is terminal about 21 ℃ is got back to high temperature cold water unit 7.The effect of wet coolings such as I level surface cooler 2 plays, the effect of II level surface cooler 3 are effects of dehumidifying, and direct evaporative cooler 4 plays the effect of water fender, stops the condensing drip that II level surface cooler 3 flies out.
During winter operation, open I level surface cooler 2 and direct evaporative cooler 4, make outdoor air reach the ventilation state point.The hot water that this moment, I level surface cooler 2 feeding thermals source 8 provided, again the water supply of the backwater of I level surface cooler 2 as the sensible heat end, the backwater of last sensible heat end is got back to thermal source 8 places.Running as shown in Figure 2.Here I level surface cooler 2 uses as heater; Direct evaporative cooler 4 uses as humidifier, and main effect is a humidification.
During the transition season operation, the outdoor air conditions point drops on the left side of room air state point, opens direct evaporative cooler 4, makes outdoor air reach the ventilation state point.Direct evaporative cooler 4 plays the cooling humidification.
When the outdoor air conditions point drops on the right side of room air state point, open I level surface cooler 2 and II level surface cooler 3, make outdoor air reach the ventilation state point.The effect of wet coolings such as I level surface cooler 2 plays; The effect of II level surface cooler 3 is effects of dehumidifying; Direct evaporative cooler 4 plays the effect of water fender, stops the condensing drip that II level surface cooler 3 flies out.
The compound new blower fan group of the utility model, volume and common new blower fan group are similar, but functional section is more reasonable, the scope of application is wider, and can improve the efficient of new blower fan group greatly, reduce the energy consumption of new blower fan group, satisfy the needs that air-conditioning system was handled new wind in the whole year.

Claims (3)

1.一种双级表冷器与直接蒸发冷却复合型新风机组,其特征在于,包括在机组壳体内、按进风方向依次设置的过滤器(1)、第Ⅰ级表冷器(2)、第Ⅱ级表冷器(3)、直接蒸发冷却器(4)和风机(5),还包括与显热末端回水相通的高温冷水机组(7),高温冷水机组(7)通过管道与第Ⅱ级表冷器(3)相连接,第Ⅱ级表冷器(3)与第Ⅰ级表冷器(2)通过管道相连接,第Ⅰ级表冷器(2)通过管道与显热末端相连接。1. A double-stage surface cooler and direct evaporative cooling composite fresh air unit, characterized in that it includes a filter (1) and a first-stage surface cooler (2) arranged in the unit casing in sequence according to the air inlet direction , second-stage surface cooler (3), direct evaporative cooler (4) and fan (5), also includes a high-temperature chiller (7) connected to the return water at the end of the sensible heat, and the high-temperature chiller (7) is connected to the The second-stage surface cooler (3) is connected, the second-stage surface cooler (3) is connected to the first-stage surface cooler (2) through pipes, and the first-stage surface cooler (2) is connected to the sensible heat through pipes The ends are connected. 2.按照权利要求1所述的复合型新风机组,其特征在于,高温冷水机组(7)与第Ⅱ级表冷器(3)相连接的管道上设置有水泵。2. The composite fresh air unit according to claim 1, characterized in that a water pump is provided on the pipe connecting the high-temperature water chiller (7) and the second-stage surface cooler (3). 3.按照权利要求1所述的复合型新风机组,其特征在于,第Ⅱ级表冷器(3)与第Ⅰ级表冷器(2)相连接的管道上设置有水泵。3. The composite fresh air unit according to claim 1, characterized in that a water pump is provided on the pipe connecting the second-stage surface cooler (3) and the first-stage surface cooler (2).
CN2010202668490U 2010-07-22 2010-07-22 Two-stage surface cooler and direct evaporating and cooling compound type fresh air fan unit Expired - Fee Related CN201740129U (en)

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Application Number Priority Date Filing Date Title
CN2010202668490U CN201740129U (en) 2010-07-22 2010-07-22 Two-stage surface cooler and direct evaporating and cooling compound type fresh air fan unit

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102175476A (en) * 2011-03-17 2011-09-07 上海理工大学 Fresh air heat recovery experimental system
CN103398435A (en) * 2013-07-23 2013-11-20 于向阳 Fresh air unit with terminal device, and passive cooling air conditioner comprising same
CN103398431A (en) * 2013-07-23 2013-11-20 于向阳 Distributed fresh air supply air-conditioning method and air conditioner
CN103398422A (en) * 2013-07-23 2013-11-20 于向阳 Fresh air unit with surface heat exchanger, and passive cooling air conditioner comprising same
CN112283820A (en) * 2020-11-26 2021-01-29 能邦(苏州)换热器有限公司 Two-stage surface cooler for fresh air dehumidifying equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102175476A (en) * 2011-03-17 2011-09-07 上海理工大学 Fresh air heat recovery experimental system
CN103398435A (en) * 2013-07-23 2013-11-20 于向阳 Fresh air unit with terminal device, and passive cooling air conditioner comprising same
CN103398431A (en) * 2013-07-23 2013-11-20 于向阳 Distributed fresh air supply air-conditioning method and air conditioner
CN103398422A (en) * 2013-07-23 2013-11-20 于向阳 Fresh air unit with surface heat exchanger, and passive cooling air conditioner comprising same
CN103398435B (en) * 2013-07-23 2016-08-10 于向阳 The new wind unit of end of tape device and passive type cooling air-conditioning device thereof
CN112283820A (en) * 2020-11-26 2021-01-29 能邦(苏州)换热器有限公司 Two-stage surface cooler for fresh air dehumidifying equipment

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C17 Cessation of patent right
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Granted publication date: 20110209

Termination date: 20130722