CN101634476B - Closed evaporation cooling high-temperature cold water unit - Google Patents

Closed evaporation cooling high-temperature cold water unit Download PDF

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Publication number
CN101634476B
CN101634476B CN2009103059909A CN200910305990A CN101634476B CN 101634476 B CN101634476 B CN 101634476B CN 2009103059909 A CN2009103059909 A CN 2009103059909A CN 200910305990 A CN200910305990 A CN 200910305990A CN 101634476 B CN101634476 B CN 101634476B
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CN
China
Prior art keywords
water
coil pipe
cooling coil
indirect evaporative
temperature
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Application number
CN2009103059909A
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Chinese (zh)
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CN101634476A (en
Inventor
黄翔
汪超
宣永梅
吴生
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西安工程大学
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Priority to CN2009103059909A priority Critical patent/CN101634476B/en
Publication of CN101634476A publication Critical patent/CN101634476A/en
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Abstract

The invention discloses a closed evaporation cooling high-temperature cold water unit which comprises an evaporation cooling coil pipe, a filter I, a water distributing device I, a water blocking plate I and a fan, wherein the filter I, the water distributing device I, the water blocking plate I and the fan are sequentially arranged at the upper part; a group of pipe type indirect evaporative coolers are arranged outside both sides of the bottom of the evaporation cooling coil pipe; the upper part of each pipe type indirect evaporative cooler is sequentially provided with a filler II, a waterdistributing device II and a water blocking plate II; the lower part of each pipe type indirect evaporative cooler is provided with an opening type water tank II; the lower part of the evaporation cooling coil pipe is provided with an opening type water tank I, and the opening type water tank II and the opening type water tank I are separated by a barrier; the opening type water tank II is communicated with the water distributing device II by a pipeline; and the opening type water tank I is communicated with the water distributing device I by a pipeline. The unit can meet the requirement of the water temperature at a dry type or dry working condition sensible heat tail end, prevent a phenomenon of dew formation at the sensible heat tail end and conform to the requirement of the water temperature of an evaporation cooling semi-centralized type air-conditioning system in the northwest district.

Description

A kind of closed evaporation cooling high-temperature handpiece Water Chilling Units

Technical field

The invention belongs to the air conditioner refrigerating technical field, relate to a kind of evaporation cooling high-temperature handpiece Water Chilling Units, be specifically related to a kind of closed evaporation cooling high-temperature handpiece Water Chilling Units of forming by tube type indirect evaporative cooler and evaporative cooling coil pipe.

Background technology

The Evaporative Cooling Air Conditioning technology is to utilize the wet naturally energy regenerative resource of dry air, and is poor by means of dry-bulb temperature in the surrounding air and dew-point temperature, obtains a kind of type of cooling of cold by the wet exchange of the heat between water and the air.Water has evaporability in air, do not having under other thermal source condition, the wet exchange process of heat between water and air is: air feeds water sensible heat transfer, the temperature of air is descended, and because evaporation of water, the water capacity of air is increased, and the steam that enters air also can be taken back some latent heats of vaporization, when the heat of taking back air when the heat and the steam of transfer of air feedwater equated, water temperature reached the wet-bulb temperature of air.As long as air is unsaturated, utilize recirculated water direct (or passing through packing layer) spray air just can obtain cool effect.This type of cooling of obtaining high temperature cold water, only water has been avoided mechanically refrigerated use as cold-producing medium, has reduced operating cost, simultaneously, does not use cold-producing medium CFC SAnd HCFC working medium, can not produce the generation that destroys and cause greenhouse effects to atmospheric ozone layer, environmental protection more meets national energy-saving and emission-reduction fundamental policy.

But existing high temperature cold water unit can not satisfy the water temperature requirement of dry type or dry cooling condition sensible heat end, and the terminal dewfall phenomenon that produces of sensible heat, simultaneously, the recirculated water vulnerable to pollution of this handpiece Water Chilling Units, corrosion of piping is comparatively serious, is unsuitable for air dried the Northwest and uses.

Summary of the invention

The purpose of this invention is to provide a kind of closed evaporation cooling high-temperature handpiece Water Chilling Units, can satisfy the water temperature requirement of dry type or dry cooling condition sensible heat end, do not produce the dewfall phenomenon, be applicable to air dried the Northwest at the sensible heat end.

The technical solution adopted in the present invention is, a kind of closed evaporation cooling high-temperature handpiece Water Chilling Units, comprise the evaporative cooling coil pipe, the top of evaporative cooling coil pipe, be disposed with filler I from the bottom up, water-locator I, water fender I and blower fan, be respectively arranged with one group of tube type indirect evaporative cooler outside the both sides of evaporative cooling coil pipe bottom, tube type indirect evaporative cooler is made up of the many tube type indirect evaporative cooler heat exchanger tubes that vertically are provided with side by side, the top of every group of tube type indirect evaporative cooler, be disposed with filler II from the bottom up, water-locator II and water fender II, be respectively arranged with open tank II below every group of tube type indirect evaporative cooler, be provided with open tank I below the evaporative cooling coil pipe, open tank II is separated by barrier mutually with open tank I, open tank II is connected with water-locator II by pipeline, this pipeline is provided with water pump I, open tank I is connected with water-locator I by pipeline, and this pipeline is provided with water pump II.

Characteristics of the present invention also are,

Be provided with dividing plate between the filler II of evaporative cooling coil pipe and its both sides, water-locator II and the water fender II.

The top of barrier is elongated to mutually concordant with the bottom of tube type indirect evaporative cooler at least.

Compare with traditional mechanical refrigeration high-temperature handpiece Water Chilling Units and open type evaporation cooling high-temperature handpiece Water Chilling Units, closed evaporation cooling high-temperature handpiece Water Chilling Units of the present invention has following characteristics:

1) adopting the pipe type heat transfer pipe to erect is provided with, walk primary air outside the pipe, spray recirculated water in the pipe, the tube type indirect evaporative cooler of walking auxiliary air carries out first precooling to air, pre-cold efficiency height, avoided because of the Northwest's dust storm, dust are big, adopted surface cooler and the plate fin type indirect evaporative cooler precooling results in blockage or the generation of scale formation.

2) air dry-bulb temperature after the tube type indirect evaporative cooler precooling and corresponding wet-bulb temperature are lower, again through with the evaporative cooling coil pipe outside shower water carry out that water carries out heat exchange in heat wet exchange back and the evaporative cooling coil pipe, the cold water water temperature of producing is between outside air dew-point temperature and wet-bulb temperature, can satisfy the water temperature requirement of dry type or dry cooling condition sensible heat end, and avoided the generation of the terminal dewfall phenomenon of sensible heat, meet the water temperature requirement of NORTHWEST CHINA area evaporative cooling half central air-conditioning system, have better energy saving and practicality.

3) adopt the evaporative cooling coil pipe, shower water carries out with the primary air of precooling outside the evaporative cooling coil pipe that heat is wet to be exchanged, carry out heat exchange by the interior water of tube wall and pipe again, the high temperature cold water that the evaporative cooling coil pipe offers evaporative cooling half central air-conditioning system is a closed Water System, overcome the Northwest's dust storm, characteristics that dust is big, recirculated water is vulnerable to pollution not, and the corrosion of piping degree is light, the geography and climate characteristics that meet the dry area of NORTHWEST CHINA, having stronger is application.

4) adopt closed Water System, evaporative cooling half central air-conditioning system pump head is low, only need overcome the resistance of closed Water System loop, and is irrelevant with depth of building, carries power consumption little, more energy-conservation.And need not establish back pool, the machine room floor space is little.

5) open tank that adopts branch to be arranged, tube type indirect evaporative cooler pre-cooler open tank, circulating water device, water-distributing device and evaporative cooling coil pipe open tank, circulating water device, water-distributing device branch are arranged, and it is separate, avoided because tube type indirect evaporative cooler spray recirculated water is different with evaporative cooling coil pipe spray recirculated water water temperature, the two mixes mutually, influences the water temperature of high temperature cold water.

Description of drawings

Fig. 1 is the structural representation of handpiece Water Chilling Units of the present invention;

Fig. 2 is the structural representation of tube type indirect evaporative cooler in the handpiece Water Chilling Units of the present invention;

Fig. 3 is the vertical view of Fig. 2.

Among the figure, 1. tube type indirect evaporative cooler, 2. evaporative cooling coil pipe, 3. filler I, 4. water-locator I, 5. water fender I, 6. blower fan, 7. water pump I, 8. open tank I, 9. water pump II, 10. open tank II, 11. tube type indirect evaporative cooler heat exchanger tubes, 12. tube type indirect evaporative cooler auxiliary air outlet air surfaces, 13. filler II, 14. water-locator II, 15. water fender II, 16. dividing plate, 17. barriers, 18. housings.

The specific embodiment

The present invention is described in detail below in conjunction with the drawings and specific embodiments.

The structure of handpiece Water Chilling Units of the present invention as shown in Figure 1, comprises evaporative cooling coil pipe 2, and the water inlet of evaporative cooling coil pipe 2 and delivery port are connected with the circulating water device of air-conditioning system respectively, is provided with dividing plate 16 around the evaporative cooling coil pipe 2.The top of evaporative cooling coil pipe 2, be disposed with filler I 3 from the bottom up, water-locator I 4 and water fender I 5, filler I 3, water-locator I 4 and water fender I 5 are positioned at dividing plate 16, be respectively arranged with one group of tube type indirect evaporative cooler 1 outside the both sides of evaporative cooling coil pipe 2 bottoms, the top of every group of tube type indirect evaporative cooler 1, be disposed with filler II 13 from the bottom up, water-locator II 14 and water fender II 15, be respectively arranged with open tank II 10 below every group of tube type indirect evaporative cooler 1, be provided with open tank I 8 under the evaporative cooling coil pipe 2, open tank II 10 separates by barrier 17 mutually with open tank I 8, make open tank II10 and open tank I 8 not connected, open tank II 10 is connected with water-locator II 14 by pipeline, this pipeline is provided with water pump I 7, open tank I 8 is connected with water-locator I 4 by pipeline, and this pipeline is provided with water pump II 9.The top of barrier 17 is mutually concordant with the bottom surface of tube type indirect evaporative cooler 1.

The top of tube type indirect evaporative cooler 1 is connected with the housing 18 that does not have the bottom, the top of housing 18 has through hole, be provided with blower fan 6 in this through hole, blower fan 6 is corresponding with evaporative cooling coil pipe 2, the filler II 13 of evaporative cooling coil pipe 2 and its both sides, water-locator II 14 and water fender II 15 are positioned at housing 18, the filler II 13 of evaporative cooling coil pipe 2 and its both sides, be provided with dividing plate 16 between water-locator II 14 and the water fender II 15, leave the space between the inboard at the top of dividing plate 16 and housing 18 tops, filler I 3, water-locator I 4 and water fender I 5 are positioned at dividing plate 16.

The structure of tube type indirect evaporative cooler 1 in the handpiece Water Chilling Units of the present invention, as shown in Figures 2 and 3, tube type indirect evaporative cooler 1 is made of the tube type indirect evaporative cooler heat exchanger tube 11 of a plurality of vertical settings.The end face of these a plurality of tube type indirect evaporative cooler heat exchanger tubes 11 constitutes tube type indirect evaporative cooler auxiliary air outlet air surface 12, and the bottom surface of these a plurality of tube type indirect evaporative cooler heat exchanger tubes 11 constitutes tube type indirect evaporative cooler auxiliary air air intake surface.

The tube type indirect evaporative cooler heat exchanger tube 11 outer primary airs that pass through, the spray recirculated water that sprays by auxiliary air and water-locator II 14 in the tube type indirect evaporative cooler heat exchanger tube 11, this spray recirculated water and auxiliary air carry out the wet exchange of heat in tube type indirect evaporative cooler heat exchanger tube 11 after, form the tubular indirect evaporative chilling spray recirculated water of water temperature convergence primary air wet-bulb temperature, this tubular indirect evaporative chilling spray recirculated water carries out heat exchange by the tube wall and the primary air of tube type indirect evaporative cooler heat exchanger tube 11, and primary air is carried out precooling.

Primary air after the precooling is during by evaporative cooling coil pipe 2, the spray recirculated water of primary air after the precooling and water-locator I 4 ejections carries out the wet exchange of heat outside evaporative cooling coil pipe 2, form the evaporative cooling dish spray recirculated water of water temperature convergence precooled air wet-bulb temperature, this evaporative cooling dish spray recirculated water carries out heat exchange by the tube wall of evaporative cooling coil pipe 2 and the recirculated water of the air-conditioning system in the evaporative cooling coil pipe 2, produces the high temperature cold water between outdoor air dew-point temperature and wet-bulb temperature.

This handpiece Water Chilling Units adopts 1 pair of air of tube type indirect evaporative cooler to carry out first precooling, air after the precooling carries out the wet exchange of heat with spray recirculated water outside evaporative cooling coil pipe 2, the recirculated water of air-conditioning system carries out heat exchange by tube wall in spray recirculated water outside the coil pipe of evaporative cooling simultaneously 2 after the wet exchange of heat and the evaporative cooling coil pipe 2, water temperature in the evaporative cooling coil pipe 2 is reduced, deliver to again in half central air-conditioning system, satisfy the water requirement of sensible heat end, the water that the evaporative cooling coil pipe offers evaporative cooling half central air-conditioning system is closed Water System.

The course of work of handpiece Water Chilling Units of the present invention:

Summer, enter the outdoor auxiliary air in the tube type indirect evaporative cooler heat exchanger tube 11, carry out the wet exchange of heat with the spray recirculated water in the tube type indirect evaporative cooler heat exchanger tube 11, make the wet-bulb temperature of tubular indirect evaporative chilling spray recirculated water water temperature convergence outdoor air.

Summer, enter the outdoor primary air between each tube type indirect evaporative cooler heat exchanger tube 11, carry out heat exchange by the tube wall of tube type indirect evaporative cooler heat exchanger tube 11 and the tubular indirect evaporative chilling spray recirculated water in the tube type indirect evaporative cooler heat exchanger tube 11, precooling, primary air after the precooling, outside the pipe of evaporative cooling coil pipe 2, carry out the wet exchange of heat, make the wet-bulb temperature of the outer spray recirculated water water temperature convergence precooled air of evaporative cooling coil pipe 2 pipes with spray recirculated water.

Air-conditioning system recirculated water in evaporative cooling coil pipe 2 pipes carries out heat exchange by the evaporative cooling coil pipe spray recirculated water outside tube wall and the evaporative cooling coil pipe 2, produce the high temperature cold water of water temperature between outdoor air dew-point temperature and wet-bulb temperature, and this high temperature cold water supplied water to air-conditioning system, the backwater of air-conditioning system feeds evaporative cooling coil pipe 2 again and carries out the heat exchange circulation.

Characteristics of the present invention are to utilize tube type indirect evaporative cooler 1 and evaporative cooling coil pipe 2 to form the closed evaporation cooling high-temperature handpiece Water Chilling Units, make full use of the dry-bulb temperature of dry air and the temperature difference of dew-point temperature, carry out precooling by 1 pair of primary air of tube type indirect evaporative cooler, make by the air themperature of evaporative cooling coil pipe 2 lower, corresponding wet-bulb temperature is also lower, carry out wet exchange of evaporative cooling heat and heat exchange through evaporative cooling coil pipe 2 again, produce the high temperature cold water of water temperature between outdoor air dew-point temperature and wet-bulb temperature, can satisfy the water temperature requirement of dry type or dry cooling condition sensible heat end, and avoided the generation of the terminal dewfall phenomenon of sensible heat, met the water temperature requirement of NORTHWEST CHINA area evaporative cooling half central air-conditioning system.And the employing closed circle water system has overcome the Northwest's dust storm, dust is big, and recirculated water is vulnerable to pollution not, and the corrosion of piping degree is light, more meets the geography and climate characteristics in the dry area of NORTHWEST CHINA, has stronger energy saving, applicability and application.

Claims (3)

1. closed evaporation cooling high-temperature handpiece Water Chilling Units, it is characterized in that, comprise evaporative cooling coil pipe (2), the top of evaporative cooling coil pipe (2), be disposed with filler I (3) from the bottom up, water-locator I (4), water fender I (5) and blower fan (6), be respectively arranged with one group of tube type indirect evaporative cooler (1) outside the both sides of evaporative cooling coil pipe (2) bottom, described tube type indirect evaporative cooler (1) is made up of the many tube type indirect evaporative cooler heat exchanger tubes (11) that vertically are provided with side by side, the top of every group of tube type indirect evaporative cooler (1), be disposed with filler II (13) from the bottom up, water-locator II (14) and water fender II (15), be respectively arranged with open tank II (10) below every group of tube type indirect evaporative cooler (1), be provided with open tank I (8) below the evaporative cooling coil pipe (2), described open tank II (10) is separated by barrier (17) mutually with open tank I (8), described open tank II (10) is connected with water-locator II (14) by pipeline, this pipeline is provided with water pump I (7), described open tank I (8) is connected with water-locator I (4) by pipeline, and this pipeline is provided with water pump II (9).
2. according to the described closed evaporation cooling high-temperature handpiece Water Chilling Units of claim 1, it is characterized in that, be provided with dividing plate (16) between the filler II (13) of described evaporative cooling coil pipe (2) and its both sides, water-locator II (14) and the water fender II (15).
3. according to the described closed evaporation cooling high-temperature handpiece Water Chilling Units of claim 1, it is characterized in that the top of described barrier (17) is elongated to mutually concordant with the bottom of tube type indirect evaporative cooler (1) at least.
CN2009103059909A 2009-08-24 2009-08-24 Closed evaporation cooling high-temperature cold water unit CN101634476B (en)

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Application Number Priority Date Filing Date Title
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CN101634476B true CN101634476B (en) 2011-09-07

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Publication number Priority date Publication date Assignee Title
CN102230654B (en) * 2011-06-08 2013-09-18 于向阳 Closed indirect evaporation water chiller
CN102242958A (en) * 2011-06-08 2011-11-16 于向阳 Closed type evaporating refrigeration cold water unit
CN102353108B (en) * 2011-09-08 2013-08-07 西安工程大学 Evaporative cooling water chiller unit based on split heat pipe
CN102759285A (en) * 2012-08-08 2012-10-31 福建立信换热设备制造股份公司 Combined type evaporation air cooler
CN102967014B (en) * 2012-11-02 2016-05-11 伟盈技术研发(无锡)有限公司 Environment-friendly type constant temperature and humidity water exchange VMC
CN103075896A (en) * 2013-01-22 2013-05-01 西安工程大学 Hydrodynamic fan cooling tower capable of generating sub wet bulb temperature water
CN103062857B (en) * 2013-01-29 2015-05-20 西安工程大学 Closed-type evaporative cooling-water chilling unit utilizing capillary tubes
US20160054070A1 (en) * 2013-04-04 2016-02-25 E-Polytech Mfg. Sys, Llc Heat exchange system adapted to selectively operate in wet and/or or dry mode
CN103574996B (en) * 2013-11-13 2015-11-18 西安工程大学 Enclosed standpipe indirect evaporating-cooling high temperature cold water unit
CN103591815A (en) * 2013-11-19 2014-02-19 西安工程大学 Modular tube type direct and indirect evaporating air conditioner
CN103759357B (en) * 2014-01-08 2016-05-25 西安工程大学 The cold-wind/cold-water unit that power plant combines with mechanical refrigeration with evaporative cooling
CN105928106B (en) * 2016-04-29 2018-09-07 西安工程大学 The cooling handpiece Water Chilling Units of capillary type enclosed evaporation
CN109945358B (en) * 2019-02-26 2020-03-27 珠海格力电器股份有限公司 Water chilling unit and air conditioner

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CN2250511Y (en) * 1995-04-21 1997-03-26 江苏申海股份有限公司 Closed cooling tower
JP2006177591A (en) * 2004-12-21 2006-07-06 Kuken Kogyo Co Ltd Cooling tower
CN200996801Y (en) * 2007-01-05 2007-12-26 西安工程大学 Indirect-elliptical piping evaporating cooler
CN201497108U (en) * 2009-08-24 2010-06-02 西安工程大学 Closed air conditioner set composed of tubular evaporation cooler and evaporation cooling coil pipe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2250511Y (en) * 1995-04-21 1997-03-26 江苏申海股份有限公司 Closed cooling tower
JP2006177591A (en) * 2004-12-21 2006-07-06 Kuken Kogyo Co Ltd Cooling tower
CN200996801Y (en) * 2007-01-05 2007-12-26 西安工程大学 Indirect-elliptical piping evaporating cooler
CN201497108U (en) * 2009-08-24 2010-06-02 西安工程大学 Closed air conditioner set composed of tubular evaporation cooler and evaporation cooling coil pipe

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