CN100498179C - Antifreezing and fogging water-saving cooling tower - Google Patents

Antifreezing and fogging water-saving cooling tower Download PDF

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Publication number
CN100498179C
CN100498179C CNB2006100888634A CN200610088863A CN100498179C CN 100498179 C CN100498179 C CN 100498179C CN B2006100888634 A CNB2006100888634 A CN B2006100888634A CN 200610088863 A CN200610088863 A CN 200610088863A CN 100498179 C CN100498179 C CN 100498179C
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CN
China
Prior art keywords
water
tower
aerial cooler
cooling
air
Prior art date
Application number
CNB2006100888634A
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Chinese (zh)
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CN1888802A (en
Inventor
吴晓敏
张天敏
姚奇
戴万田
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清华大学
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Application filed by 清华大学 filed Critical 清华大学
Priority to CNB2006100888634A priority Critical patent/CN100498179C/en
Publication of CN1888802A publication Critical patent/CN1888802A/en
Priority claimed from PCT/CN2007/001302 external-priority patent/WO2007121670A1/en
Application granted granted Critical
Publication of CN100498179C publication Critical patent/CN100498179C/en

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Abstract

A kind of preventing frostbite, falling fog and water saving cooling tower relates to cooling equipment using for dropping circulating water in temperature. Set air intake blind on each side of top and bottom of tower and set the first and second air-cooling implements near the blind inside the tower. Water distribution pipe of two types of air cooling implements connects with water intake pipe of circulating water, while the outlet pipe connects with distributor and water return pipe of circulating water with by-pass pipe. Collecting water implement sets between tanks under the first air-cooling implement. The cooling of circulating water carries by air-cooling implement and it reduces the cooling load of packed stage and saves water by reducing the amount of evaporation. The exhaust gas is mixture formed by gas from the first air-cooling implement and collecting water implement, whose dew point temperature is lower than the other existing tower to eliminate or reduce the spray of tower and is benefit for environment. The second air-cooling implement increases the cooling load of circulating water in the air-cooling implement to greatly increase water conservation efficiency and warm up the intake air to prevent freezing in winter.

Description

A kind of antifreezing and fogging water-saving cooling tower
Technical field
The present invention relates to a kind of cooling tower that is used for circulating water cooling, can be widely used in a plurality of technical fields such as oil, chemical industry, weaving and thermal power generation.
Background technology
The effect of cooling tower is that the recirculated water that will carry waste heat carries out heat exchange at Ta Nei and air, and the heat of water is transferred to air and spills into atmosphere, and recirculated water is lowered the temperature.Cooling tower is divided into wet cooling tower and two kinds of forms of dry cooling tower by the way of contact of recirculated water and air.
In wet cooling tower, the recirculated water of being sowed at filling surface directly contacts with air, by transmission of heat by contact and evaporative heat loss, the heat of water is transferred to air.The heat exchanger effectiveness height of wet tower, the limiting temperature that water is cooled is the wet-bulb temperature of air.But water causes loss because of evaporation; And evaporation makes the cooling water salinity of circulation increase again, for stabilizing water quality, normal other filter method of dosing and the blowdown method of adopting, wherein blowdown method is because of investment and operating cost is low widely uses, and its processing method higher water of a part of salinity of promptly draining relies on supplementing water to reduce salinity, promptly there is the blowdown loss, must have new water to replenish, in addition, the water that wafts also can cause the loss of water.Simultaneously, damp-heat air can condense into water smoke in the cooling tower exit, causes ambient light contamination and influences the local climate environment.In addition, in the winter of cold, the phenomenon of freezing can appear in the top of air inlet.
In dry cooling tower, the heat exchange of recirculated water and air is to conduct heat by the radiator wall, and the heat of managing interior water is transferred to the outer flow air of radiator.Because water does not directly contact with air, so dried tower does not have evaporation of water, so there is not the evaporation of water loss, the cooling tower outlet does not have water smoke yet.But because the cooling limit temperature of dried tower is the dry-bulb temperature of air, and the specific heat of air is little, and the heat-exchange capacity of dried tower is far below wet tower, so dried tower needs a large amount of materials such as metal, so its cost is more than wanting high with the wet type tower of cooling load.
Summary of the invention
The purpose of this invention is to provide a kind of antifreezing and fogging water-saving cooling tower, be intended to solve the wet cooling tower water loss big, go out the icing phenomenon that Ta Kou has water smoke and winter, and the low problem of dry cooling tower heat exchanger effectiveness, with advantage comprehensive wet, dry cooling tower, make it have anti-freeze preferably, environmental protection and water-saving result.
The objective of the invention is to be achieved through the following technical solutions:
A kind of antifreezing and fogging water-saving cooling tower, contain tower body, be arranged on the water collection device in the tower body, water-locator, be arranged on the packing layer at tower body middle part, be arranged on the storage cistern of tower body bottom, be arranged on the filler air inlet shutter on the tower body sidewall of packing layer below, circulating water inlet, recirculated water return pipe and corresponding valve, it is characterized in that: on tower body sidewall above the water-locator, be furnished with aerial cooler air inlet shutter, be close to two first aerial coolers of aerial cooler air inlet shutter symmetric arrangement in the tower body inboard, described water collection device is arranged between two first aerial coolers; Being close to filler air inlet shutter symmetric arrangement in the tower body inboard has two second aerial coolers, and the aperture of above-mentioned air inlet shutter is all adjustable, can realize variable load operation and satisfy anti-dust storm requirement.The sparge pipe of first aerial cooler and the second aerial cooler inboard is connected with circulating water inlet respectively, the outlet pipe of aerial cooler is connected with water-locator, the lower condensate sump of the lower condensate sump of first aerial cooler and second aerial cooler links to each other with the recirculated water return pipe by bypass pipe respectively, be arranged on the circulating water flow that by-passing valve on the bypass pipe can be used for controlling packing layer, realize water saving and anti-freeze to greatest extent.
Technical characterictic of the present invention also is: be respectively equipped with valve between the sparge pipe of first aerial cooler and second aerial cooler and circulating water inlet.
Aerial cooler of the present invention adopts plate wing fin tube type, helical fin tubular type or suit fin tube type structure, and parent tube is pipe, elliptical tube or porous flat pipe, and described fin is straight wing, screw thread wing, ripple wing or venetian blind type wing.Described water-locator adopts to be gone up spray or sprays the cloth water-bound down.Air all is the heat exchange of intersection reflux type with recirculated water in described first aerial cooler and second aerial cooler.Top at described tower body is provided with blower fan.Aerial cooler inflow control valve can be used for regulating the flow of each aerial cooler, to optimize cooling tower runnability and variable load operation.First, second aerial cooler can realize that surface clean and sewage reclaim requirement.
The present invention compared with prior art, has following beneficial effect by changing the version of cooling tower: 1. owing to be provided with aerial cooler recirculated water is carried out precooling, reduced the cooling load of packing section, reduced evaporated water, can economize on water.2. because outside the next nearly saturated moist air of water collection device will mix discharge tower in back with the hot dry air that first aerial cooler comes out, the water capacity and the dew-point temperature of the existing conventional cooling tower outlet air of its water capacity and dew-point temperature are much smaller, can eliminate or reduce the water smoke at tower mouth place, help environmental protection.3. from air glide path, second aerial cooler is connected with packing section, and is in parallel with first aerial cooler more afterwards, can increase the ratio of recirculated water cooling amount in aerial cooler and filler like this, improves water-saving rate.4. because second aerial cooler has the effect of preheating to advancing the tower air, can prevent freezing of cold winter.
Description of drawings
Fig. 1 is an antifreezing and fogging water-saving cooling tower provided by the invention structural representation when adopting force ventilation.
Fig. 2 is an antifreezing and fogging water-saving cooling tower provided by the invention structural representation when adopting gravity-flow ventilation.
The fin-tube type aerial cooler contour structures schematic diagram that Fig. 3 adopts for the present invention.
Among the figure: 1-circulating water inlet, 2-bypass pipe, 3-recirculated water return pipe, 4-return pipe control valve, 5-storage cistern, 6-filler air inlet shutter, 7-packing layer, 8-water-locator control valve, 9-water-locator, 10-water collection device, 11-lower condensate sump, 12-aerial cooler air inlet shutter, 13-the first aerial cooler, 14-upper condensate sump, 15-blower fan, 16-sparge pipe, 17-tower body, 18-by-passing valve, 19-fixed support, 20-aerial cooler outlet pipe, the 21-finned tube, 22-fin, 23-lower condensate sump baffle plate, 24-upper condensate sump baffle plate, 25-the second aerial cooler, 26-aerial cooler inflow control valve.
The specific embodiment
Below in conjunction with accompanying drawing patent of the present invention is further described.
Fig. 1 is an antifreezing and fogging water-saving cooling tower provided by the invention structural representation when adopting force ventilation.This cooling tower contains tower body 17, be arranged on water collection device 10, water-locator 9, packing layer 7, storage cistern 5 in the tower body, be arranged on filler air inlet shutter 6, circulating water inlet 1, recirculated water return pipe 3 and corresponding valve on the tower body sidewall of packing layer below.Symmetric arrangement has aerial cooler air inlet shutter 12 on the tower body sidewall of cooling tower, being close to aerial cooler air inlet shutter symmetric arrangement in the tower body inboard has the first aerial cooler 13a and the first aerial cooler 13b, and being close to filler air inlet shutter 6 symmetric arrangement in the tower body inboard has the second aerial cooler 25a and the second aerial cooler 25b.First aerial cooler and second aerial cooler all adopt plate wing fin tube type, helical fin tubular type or suit fin tube type structure; Parent tube is pipe, elliptical tube or porous flat pipe; Described fin 22 is straight wing, screw thread wing, ripple wing or venetian blind type wing.Described first aerial cooler is arranged on the top of water-locator, and first aerial cooler is installed on the fixed support 19, and support is fixed on the load-bearing supporter of cooling tower, and water collection device 10 is arranged between two first aerial coolers.The sparge pipe 16a of described first aerial cooler and the second aerial cooler inboard, 16b be connected with circulating water inlet 1, recirculated water is assigned in the aerial cooler, the air cooling that the water of first aerial cooler is introduced by aerial cooler air inlet shutter 12, the air cooling that the water of second aerial cooler is introduced by filler air inlet shutter 6, first, recirculated water in second aerial cooler and air are and intersect countercurrent flow, recirculated water through cooling confluxes in the lower condensate sump 11a of aerial cooler, 11b, recirculated water is by aerial cooler outlet pipe 20a, 20b enters water-locator 9 through water-locator control valve 8, sowed on the cooling tower heat exchange packing layer 7, after the air heat exchange cooling, fall into storage cistern 5.Lower condensate sump 11a, the 11b of aerial cooler links to each other with recirculated water return pipe 3 by bypass pipe 2, according to the difference regulation and control by-passing valve 18 and the return pipe control valve 4 of air conditions, with water saving to greatest extent.The aperture of aerial cooler air inlet shutter 12 and packing layer 7 below filler air inlet shutters 6 is all adjustable, to mate the intake of the two.Discharge by the tower mouth under blower fan 15 swabbing actions through the heated dry air behind first aerial cooler with through the mixing of the damp-heat air after packing layer heat exchange back.
Fig. 2 is an antifreezing and fogging water-saving cooling tower provided by the invention structural representation when adopting gravity-flow ventilation.This cooling tower contains tower body 17, be arranged on water collection device 10, water-locator 9, packing layer 7, storage cistern 5 in the tower body, be arranged on filler air inlet shutter 6, circulating water inlet 1, recirculated water return pipe 3 and corresponding valve on the tower body sidewall of packing layer below.Symmetric arrangement has aerial cooler air inlet shutter 12 on the tower body sidewall of cooling tower, being close to aerial cooler air inlet shutter symmetric arrangement in the tower body inboard has the first aerial cooler 13a and the first aerial cooler 13b, and being close to filler air inlet shutter 6 symmetric arrangement in the tower body inboard has the second aerial cooler 25a and the second aerial cooler 25b.First aerial cooler and second aerial cooler all adopt plate wing fin tube type, helical fin tubular type or suit fin tube type structure; Parent tube is pipe, elliptical tube or porous flat pipe; Described fin 22 is straight wing, screw thread wing, ripple wing or venetian blind type wing.Described first aerial cooler is arranged on the top of water-locator, and first aerial cooler is installed on the fixed support 19, and support is fixed on the load-bearing supporter of cooling tower, and water collection device 10 is arranged between two first aerial coolers.The sparge pipe 16a of described first aerial cooler and the second aerial cooler inboard, 16b be connected with circulating water inlet 1, recirculated water is assigned in the aerial cooler, the air cooling that the water of first aerial cooler is introduced by aerial cooler air inlet shutter 12, the air cooling that the water of second aerial cooler is introduced by filler air inlet shutter 6, first, recirculated water in second aerial cooler and air are and intersect countercurrent flow, recirculated water through cooling confluxes in the lower condensate sump 11a of aerial cooler, 11b, recirculated water is by aerial cooler outlet pipe 20a, 20b enters water-locator 9 through water-locator control valve 8, sowed on the cooling tower heat exchange packing layer 7, after the air heat exchange cooling, fall into storage cistern 5.Lower condensate sump 11a, the 11b of aerial cooler links to each other with recirculated water return pipe 3 by bypass pipe 2, according to the difference regulation and control by-passing valve 18 and the return pipe control valve 4 of air conditions, with water saving to greatest extent.The aperture of aerial cooler air inlet shutter 12 and packing layer 7 below filler air inlet shutters 6 is all adjustable, to mate the intake of the two.Discharge by the tower mouth through the heated dry air behind first aerial cooler with through the mixing of the damp-heat air after packing layer heat exchange back.
The fin-tube type aerial cooler contour structures schematic diagram that Fig. 3 adopts for the present invention.Recirculated water is entered the upper condensate sump 14 of aerial cooler by the sparge pipe 16 of aerial cooler, recirculated water is assigned to by upper condensate sump baffle plate 24 to go downstream in the finned tube 21 of aerial cooler and is cooled, conflux in lower condensate sump 5, recirculated water is assigned to sail against the current in the finned tube of aerial cooler by lower condensate sump baffle plate 23 again and is cooled.Cold air enters first from aerial cooler air intake shutter 12 and the filler air inlet shutter 6 that is opened in cooling tower tower body sidewall respectively, second aerial cooler and recirculated water in the finned tube are and intersect countercurrent flow, heated dry air after being heated in first aerial cooler mixes the back at the first aerial cooler air outlet and discharges from the tower mouth with hot humid air after the packing layer heat exchange, dried warm air after being heated in second aerial cooler enters filler and recirculated water carries out evaporative heat loss, the aerial cooler fixed support adopts metal or macromolecule organic composite material to make, and fixed support is fixed on the load-bearing supporter of cooling tower.Aerial cooler can be fixed on the fixed support or put on fixed support, also can be fixed by key bolt fastening assembly.The aerial cooler layout design should be convenient to change, safeguard, overhaul.

Claims (7)

1, a kind of antifreezing and fogging water-saving cooling tower, contain tower body (17), be arranged on the water collection device (10) in the tower body, water-locator (9), be arranged on the packing layer (7) at tower body middle part, be arranged on the storage cistern (5) of tower body bottom, be arranged on the filler air inlet shutter (6) on the tower body sidewall of packing layer below, circulating water inlet (1), recirculated water return pipe (3) and corresponding valve, it is characterized in that: symmetric arrangement has aerial cooler air inlet shutter (12) on tower body sidewall above the water-locator, be close to two first aerial cooler (13a of aerial cooler air inlet shutter symmetric arrangement in the tower body inboard, 13b), described water collection device is arranged between two first aerial coolers; Be close to two second aerial coolers of filler air inlet shutter symmetric arrangement (25a, 25b) in the tower inboard; The sparge pipe of first aerial cooler and the second aerial cooler inboard (16a, 16b) is connected with circulating water inlet (1) respectively, the outlet pipe of first aerial cooler and second aerial cooler (20a, 20b) is connected with water-locator, and the lower condensate sump (11b) of the lower condensate sump of first aerial cooler (11a) and second aerial cooler links to each other with recirculated water return pipe (3) by bypass pipe (2) respectively.
2, according to claims 1 described antifreezing and fogging water-saving cooling tower, it is characterized in that: be respectively equipped with valve (26a, 26b) between the sparge pipe of first aerial cooler and second aerial cooler and circulating water inlet.
3, according to claim 1 or 2 described antifreezing and fogging water-saving cooling towers, it is characterized in that: the control valve (18) that on described bypass pipe (2), is provided with the flow that is used to control packing layer.
4, according to the described antifreezing and fogging water-saving cooling tower of claim 1, it is characterized in that: be provided with blower fan (15) at the top of described tower body.
5, according to the described antifreezing and fogging water-saving cooling tower of claim 1, it is characterized in that: air all intersects the reflux type heat exchange to be with recirculated water in described first aerial cooler and second aerial cooler.
6, according to the described antifreezing and fogging water-saving cooling tower of claim 1, it is characterized in that: described first aerial cooler and second aerial cooler adopt plate wing fin tube type, helical fin tubular type or suit fin tube type structure, described finned tube is pipe, elliptical tube or porous flat pipe, and described fin is straight wing, screw thread wing, ripple wing or venetian blind type wing.
7, according to the described antifreezing and fogging water-saving cooling tower of claim 1, it is characterized in that: described water-locator adopts to be gone up spray or sprays the cloth water-bound down.
CNB2006100888634A 2006-07-21 2006-07-21 Antifreezing and fogging water-saving cooling tower CN100498179C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100888634A CN100498179C (en) 2006-07-21 2006-07-21 Antifreezing and fogging water-saving cooling tower

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2006100888634A CN100498179C (en) 2006-07-21 2006-07-21 Antifreezing and fogging water-saving cooling tower
PCT/CN2007/001302 WO2007121670A1 (en) 2006-04-21 2007-04-20 An environment protecting and water saving cooling tower

Publications (2)

Publication Number Publication Date
CN1888802A CN1888802A (en) 2007-01-03
CN100498179C true CN100498179C (en) 2009-06-10

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CN101592445A (en) * 2009-04-22 2009-12-02 林义雄 Cooler
CN102003913A (en) * 2010-11-08 2011-04-06 Bac大连有限公司 Method for saving water and preventing fog and icing of evaporative heat-exchange device and filler assembly
CN102538503B (en) * 2011-12-30 2015-03-25 江苏海鸥冷却塔股份有限公司 Water-saving environment-friendly cooling tower
CN103277807A (en) * 2013-05-08 2013-09-04 黄胜建 Composite flowing layer heat exchanger
CN103776276B (en) * 2013-07-03 2015-11-18 烟台荏原空调设备有限公司 Reverse-flow closed cooling tower
CN103712477B (en) * 2013-12-18 2016-02-24 清华大学 Heat pump heat supply demist water-saving cooling tower
CN104006678A (en) * 2014-06-23 2014-08-27 苏州塔可盛电子科技有限公司 Cooling tower with agitating vanes
CN104034182A (en) * 2014-07-09 2014-09-10 常州市科慧制冷设备有限公司 Energy-saving environment-friendly fog-dispersal type cooling tower
CN104501618A (en) * 2014-12-22 2015-04-08 江苏海鸥冷却塔股份有限公司 Water-saving and antifreezing cooling tower
CN104697354A (en) * 2015-03-13 2015-06-10 芜湖凯博实业股份有限公司 Novel cooling column
CN105277010B (en) * 2015-05-08 2017-08-29 江苏海鸥冷却塔股份有限公司 Dry-and wet-type energy-saving cooling tower
CN105066734B (en) * 2015-07-16 2018-08-03 东华大学 A kind of Complex-cooling tower
CN106685186B (en) * 2015-11-06 2019-11-08 国网智能电网研究院 A kind of converter valve cooling component heat-insulation system and its height acquisition methods
CN105403068B (en) * 2015-11-20 2017-11-28 华北电力大学 Cooling tower and its application are combined using the dry and wet of gravity-flow ventilation and combined running pattern
CN106610232B (en) * 2016-12-28 2019-02-26 山东大学 Dry and wet mixing large cooling column, cooling system and the method for continuous filler arrangement
CN106871661A (en) * 2017-02-17 2017-06-20 灵谷化工有限公司 A kind of method for increasing cooling tower thermic load and demisting
CN109029006A (en) * 2018-10-25 2018-12-18 单东海 A kind of empty quick-fried cooling tower of enclosed
CN111397394B (en) * 2020-03-20 2020-10-27 中国人民解放军火箭军工程设计研究院 Cooling tower system with white smoke removing function

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