CN102564159B - Tubular device and method for producing cold water by means of indirect evaporation and direct evaporation - Google Patents
Tubular device and method for producing cold water by means of indirect evaporation and direct evaporation Download PDFInfo
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- CN102564159B CN102564159B CN 201010599038 CN201010599038A CN102564159B CN 102564159 B CN102564159 B CN 102564159B CN 201010599038 CN201010599038 CN 201010599038 CN 201010599038 A CN201010599038 A CN 201010599038A CN 102564159 B CN102564159 B CN 102564159B
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Abstract
The invention provides a tubular device and a method for producing cold water by means of indirect evaporation and direct evaporation. The tubular device is characterized in that the air which enters from a wind inlet (16) is firstly cooled by an air cooler (8) by means of constant wetness, the air enters a tubular indirect heat exchanger (7) to be secondly cooled by means of constant wetness, the air which is secondly cooled by means of constant wetness enters from the bottom of a lower direct evaporator cooler (10) through a wind return chamber (9), sequentially passes through the space between the lower direct evaporator cooler (10) and the tubular indirect heat exchanger (7) and an upper direct evaporator cooler (6) from down to top to exchange the heat with spray water by convective transfer mass to produce the cold water for a user, the return water used by the user is used for cooling the air which firstly enters from a wind inlet (16) through the air cooler (8) by means of constant wetness, and the nearly-saturated or saturated wet air is discharged by an exhaust fan (3) through a wind outlet (2), so that the circulatory refrigeration is realized. The water is taken as a refrigerant, a mass of refrigerants can be saved, the use cost of the user can be lowered, and the environment can not be polluted, so that the tubular device is low-carbon and energy-saving.
Description
Technical field
The present invention relates to a kind of water evaporation for cooling equipment and energy technology field, method and the device of cold water produced in specifically a kind of tubular indirect evaporative and direct evaporation.
Background technology
In prior art, the method for utilizing evaporation cooling technique to produce cold water is to utilize water to contact with unsaturated air, makes air or water for cooling by evaporation of water.It is to utilize " dry air energy " that atmosphere itself has as driving gesture, is a kind of Passive cooling mode, is direct transpiration-cooled simple application, therefore low to the utilization rate of air, effect that waste energy, produce cold water is relatively relatively poor.
Summary of the invention
The objective of the invention is to solve the deficiency that prior art exists, provide a kind of utilize tubular indirect evaporative and directly the evaporation double technique realize producing cold water and use to the user, air utilization ratio is high, good refrigeration effect, the consumption energy are few, free of contamination tubular indirect evaporative and directly evaporation produce method and the device of cold water.
Technical program of the present invention lies in:
Tubular indirect evaporative of the present invention and directly the evaporation method of producing cold water that to be the air that entered by air inlet carry out through surface cooler is one inferior but clammy, and then enter the tubular type indirect heat exchanger carry out two inferior but clammy, two inferior clammy air after but through the return air chamber from lower direct evaporative cooler bottom enter to down and on successively between the outer tube wall by lower direct evaporative cooler, tubular type indirect heat exchanger, upper direct evaporative cooler and shower water carry out convection current, mass transfer heat exchange generation cold water for the user; Backwater after the user uses carries out etc. again but clammy again to the air that is newly entered by air inlet through surface cooler, improve the shower water temperature, and nearly saturated or saturated air is discharged from air outlet by ventilating fan, realizes circularly cooling.
The device that cold water is produced in tubular indirect evaporative of the present invention and direct evaporation comprises shower, ventilating fan is located at the air outlet place on housing top, it is mainly to be provided with surface cooler at the air inlet place, face the air intake direction and be arranged with the tubular type indirect heat exchanger in parallel, said tubular type indirect heat exchanger is between upper direct evaporative cooler and lower direct evaporative cooler, be provided with baffle plate and form the return air chamber outside tubular type indirect heat exchanger air outlet, shower is located at the top of direct evaporative cooler; The top of surface cooler communicates with shower by pipeline, and the bottom of surface cooler communicates with the user by return pipe.
Technical program of the present invention also lies in:
Be connected with water receiving tank below said lower direct evaporative cooler, be connected a water circulating pump between water receiving tank and user.
Also be provided with water fender between shower and ventilating fan.
Said surface cooler is that the radiating fin outside the U-shaped pipe consists of by U-shaped pipe and cross-under.
The good effect that the present invention produces is:
The hot-air that enters unit is cooled in surface cooler, simultaneously two direct evaporative coolers and a tubular type indirect heat exchanger are together in series, these three devaporizers are all brought into play different effects: the upper direct evaporative cooler Air of the superiors and the preliminary heat exchange of water, existing heatcooling effect has again the heat convection effect; The centre is to have consisted of secondary air channel between tube outer wall by the tubular type indirect heat exchanger, when water temperature is lowered, the high temperature air in pipe is carried out cooling, evaporative cooling and heat convection acting in conjunction; Lower direct evaporative cooler is the key link of producing cold water, and in this lower direct evaporative cooler, the living constant enthalpy of dry air and steeping in water for reconstitution is cooling, and water temperature is reduced to the wet-bulb temperature near air, is transpiration-cooled efficient calorific value exchange layer.This novel structure is at home and abroad for proposing first.
Upper and lower direct evaporative cooler and tubular type indirect heat exchanger in this device share a spray system, and equipment is simplified greatly.Device can be realized single design and symmetric design, makes equipment more elegant in appearance, modularized design.Adopted more reasonably structural design, improved the performance of air utilization ratio and equipment, made the refrigeration performance of device improve more than 20%.The cold water of producing is directly for user's air-conditioning or other heat-exchanger rig or industrial cold water, to reduce user's cost of use.As refrigerant, both can save a large amount of cold-producing mediums with water, free from environmental pollution again, low-carbon energy-saving.
Whole device adopts the wallboard of aluminum alloy frame and good heat insulating, makes equipment more attractive in appearance, and has adopted advanced PLC control able to programme, optimal control mechanism, the reliability service of assurance device.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of tubular indirect evaporative device.
Fig. 3 is the structural representation of surface cooler.
The specific embodiment
As shown in Figure 1, the said device of the present invention be mainly by surface cooler 8, tubular type indirect heat exchanger 7, two of up and down direct evaporative cooler 6,10 and shower 5, return pipe 12, water circulating pump 13 consist of.Wherein, surface cooler 8 is arranged on the air inlet place 16 in housing 11 outsides, tubular type indirect heat exchanger 7 arranges with axially the facing air inlet 16 of pipe, and on tubular type indirect heat exchanger 7 and below be respectively equipped with direct evaporative cooler 6, lower direct evaporative cooler 10, the top of upper direct evaporative cooler 6 to lower and on be disposed with shower 5, water fender 4 and ventilating fan 3.The top of surface cooler 8 communicates with shower 5 by pipeline, and the bottom of surface cooler 8 communicates with user 14 by return pipe 12.The following water receiving tank 15 that also is provided with of lower direct evaporative cooler 10, water receiving tank 15 communicates with the user by water circulating pump 13 again.Also designed baffle plate 1 and formed a return air chamber 9 outside the air outlet of tubular type indirect heat exchanger 7.Ventilating fan 3 is located at the uppermost air outlet of housing 11 2 places.Also be provided with the grid-like water fender in inclined-plane 4 between ventilating fan 3 and shower 5.
The structure of tubular type indirect heat exchanger 7 as shown in Figure 2, many pipe interval parallel to each other settings, the two ends of every pipe all wear on the side plate that is fixed on both sides, all leave the space between adjacent two tubes, in order to shower water is fallen and passed through by the two inferior clammy air after but that lower direct evaporative cooler 10 makes progress.Water by shower 5 directly sprays the surface of tubular type indirect heat exchanger 7 every pipes, carries out heat exchange with the air that passes through in every pipe, realizes that two is inferior but clammy.
The structure of described surface cooler 8 at a plurality of fins 17 of the outer cross-under of U-shaped pipe 18, is carried out heat exchange with the water of realizing better and U-shaped pipe 18 is interior as shown in Figure 3.One end of U-shaped pipe 18 is connected with shower 5, and the other end is connected with return pipe 12.
Described water receiving tank 15, water circulating pump 13, user 14, surface cooler 8 are connected in series successively by return pipe 12.Wherein, an end of return pipe 12 is connected with surface cooler 8 bottoms, and the other end of return pipe 12 is connected with water receiving tank 15.
Described ventilating fan 3, water fender 4, shower 5, upper direct evaporative cooler 6, lower direct evaporative cooler 10, tubular type indirect heat exchanger 7 all are enclosed in housing 11, add the air inlet 16 of upper side and surface cooler 8 consists of a unit, tubular indirect evaporative device 7 air outlets arrange a closed return air chamber that is made of and can makes Air Flow baffle plate 1 and water receiving tank 15 9 outward.
Best scheme is to arrange by two same unit intervals are parallel, sealing is realized by a baffle plate 1 in the top, space that forms between two tubular type indirect heat exchangers 7, this baffle plate 1 and water receiving tank 15 be common consists of a return air chamber 9, a two common water receiving tank 15 and water circulating pumps 13 (referring to Fig. 1) of using in unit, the cold water that produces is supplied with together user 14 and is recycled.
Said upper and lower direct evaporative cooler 6,10 uses existing wet curtains or of the same type other to have the device of direct evaporative cooling effect.
The course of work of this device:
1, outdoor high temperature drying air enter after air inlet 16 through surface cooler 8 and water in surface cooler 8 carry out heat exchange and by etc. clammy, the dry-bulb temperature of air and wet-bulb temperature all are lowered; The shower water temperature is enhanced.
2, then entered in the pipe of tubular type indirect heat exchanger 7 by preliminary cooling air, the shower water outer with tube wall carries out heat exchange again, air further by etc. but clammy, dry-bulb temperature and the wet-bulb temperature of air further are lowered.
3,9 flowed downward along the return air chamber by tubular type indirect heat exchanger 7 cold dry air out, enter and upwards flowed by ventilating fan 3 effects from the bottom of lower direct evaporative cooler 10, directly contact at lower direct evaporative cooler 10 hollow G﹠Ws, the temperature that the wet exchange of air of heat occurs is reduced again, and air is by humidification simultaneously.
4, be cooled and the air of humidification enters between the tube wall of tubular type indirect heat exchanger 6 after going out lower direct evaporative cooler 10, the air of moistening low temperature carry out in this secondary air channel constant enthalpy cooling in, carry out heat exchange with the air in pipe, the result of heat exchange is raised the temperature of humid air.
5, the upborne humid air of temperature enters direct evaporative cooler 6, and it is cooling that constant enthalpy occurs in upper direct evaporative cooler 6 air, with water, the part heat convection occurs also simultaneously.The result of heat exchange is that the temperature of humid air is lowered.
6, the air that goes out upper direct evaporative cooler 6 passes shower water, passes water fender 4 again, and water fender 4 stops separation with the water droplet that carries in air, and humid air drains into atmosphere via ventilating fan 3.
The course of work of water:
1, cold water is sent into cold water user 14 through water circulating pump 13, and water is heated intensification in user 14 air-conditioning or heat exchanger;
2, the water that is heated intensification enters surface cooler 8 by return pipe 12 after going out user 14, with the heated dry air heat exchange that just enters from air inlet 16, water temperature is raise;
3, water outflow surface cooler 8 enters shower 5, and the uniform sprinkle of water quilt is on upper direct evaporative cooler 6.Water carries out heat, matter exchange at upper direct evaporative cooler 6 and air, and water temperature is tentatively reduced;
4, water enters between the tube wall of tubular type indirect heat exchanger 7 after leaving direct evaporative cooler 6, with the air heat exchange in pipe.
5, tubular type indirect heat exchanger 7 air out enters from lower direct evaporative cooler 10 bottoms through return air chamber 9 again, and with the reduction temperature that is cooled of water after the shower water countercurrent heat exchange, water temperature is near the wet-bulb temperature of air.
6, the cold water of being produced from top to down by shower 5, upper direct evaporative cooler 6, tubular type indirect heat exchanger 7 and lower direct evaporative cooler 10 leaves lower direct evaporative cooler 6 and falls into water receiving tank 15, send into user 14 through water circulating pump 13, circulate for going round and beginning again again after user 14 air-conditioning or other heat-exchanger rig.
Claims (5)
1. the method for cold water is produced in a tubular indirect evaporative and direct evaporation, it is characterized in that the air that entered by air inlet (16) carries out through surface cooler (8) one inferior but clammy, and then enter tubular type indirect heat exchanger (7) and carry out two inferior but clammy, two inferior clammy air after but enter from lower direct evaporative cooler (10) bottom through return air chamber (9), pass through successively lower direct evaporator cooler (10) on to descending, between the tube wall of tubular type indirect heat exchanger (7) is outer, upper direct evaporative cooler (6) carries out convection current with shower water, the mass transfer heat exchange produces cold water for the user, backwater after the user uses passes through surface cooler (8) again and again the air that is newly entered by air inlet (16) is carried out etc. but clammy, improve the shower water temperature, nearly saturated or saturated humid air is discharged from air outlet (2) by ventilating fan (3), realize circularly cooling.
2. realize tubular indirect evaporative and the direct device of producing cold water that evaporates of method as claimed in claim 1 for one kind, comprise shower (5), ventilating fan (3) is located at the air outlet (2) on housing (11) top and locates, it is characterized in that locating to be provided with surface cooler (8) at air inlet (16), tubular type indirect heat exchanger (7) arranges with axially the facing air inlet (16) of pipe, said tubular type indirect heat exchanger (7) is positioned between direct evaporative cooler (6) and lower direct evaporative cooler (10), be provided with baffle plate (1) and form return air chamber (9) outside tubular type indirect heat exchanger (7) air outlet, shower (5) is located at the top of direct evaporative cooler (6), the top of surface cooler (8) communicates with shower (5) by pipeline, and the bottom of surface cooler (8) communicates with user (14) by return pipe (12).
3. the device of cold water is produced in tubular indirect evaporative as claimed in claim 2 and direct evaporation, it is characterized in that said lower direct evaporative cooler (10) below be connected with water receiving tank (15), be connected a water circulating pump (13) between water receiving tank (15) and user (14).
4. the device of cold water is produced in tubular indirect evaporative as claimed in claim 2 and direct evaporation, it is characterized in that also being provided with water fender (4) between shower (5) and ventilating fan (3).
5. the device of cold water is produced in tubular indirect evaporative as claimed in claim 2 and direct evaporation, it is characterized in that said surface cooler (8) is that the radiating fin (17) outside U-shaped pipe (18) consists of with cross-under by U-shaped pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010599038 CN102564159B (en) | 2010-12-16 | 2010-12-16 | Tubular device and method for producing cold water by means of indirect evaporation and direct evaporation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010599038 CN102564159B (en) | 2010-12-16 | 2010-12-16 | Tubular device and method for producing cold water by means of indirect evaporation and direct evaporation |
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| CN102564159A CN102564159A (en) | 2012-07-11 |
| CN102564159B true CN102564159B (en) | 2013-11-06 |
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| CN105072797B (en) * | 2015-08-31 | 2018-03-06 | 中广核达胜加速器技术有限公司 | A kind of electron accelerator refrigerating device inside |
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| JPS58200945A (en) * | 1982-05-17 | 1983-11-22 | Toshiba Corp | Heat source device for water heat-source heat pump type air-conditioning unit |
| CN201129808Y (en) * | 2007-11-15 | 2008-10-08 | 西安工程大学 | Vapor cooling and mechanical refrigeration compositing air-conditioning unit |
| CN100567834C (en) * | 2008-03-03 | 2009-12-09 | 西安工程大学 | A kind of indirect transpiration-cooling type cold-wind/cold-water composite type air-conditioning unit |
| CN101251285B (en) * | 2008-04-03 | 2010-09-01 | 清华大学 | Indirect evaporation refrigerating method and device capable of generating cold water and cold wind meanwhile |
| CN201203217Y (en) * | 2008-04-14 | 2009-03-04 | 西安工程大学 | Four-level evaporative cooling combined air conditioner machine unit |
| CN201615560U (en) * | 2010-03-23 | 2010-10-27 | 王明星 | Multi-stage evaporative refrigerating air conditioner with surface cooler |
| CN201909557U (en) * | 2010-12-16 | 2011-07-27 | 西安井上人工环境有限公司 | Tubular device for producing cold water by means of indirect evaporation and direct evaporation |
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Owner name: SHAANXI URSTAR ENVIRONMENTAL SCIENCE AND TECHNOLOG Free format text: FORMER OWNER: XI AN JINGSHANG ARTIFICIAL ENTIRONMENT CO., LTD. Effective date: 20150513 |
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Free format text: CORRECT: ADDRESS; FROM: 710119 XI AN, SHAANXI PROVINCE TO: 721006 BAOJI, SHAANXI PROVINCE |
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Effective date of registration: 20150513 Address after: 721006 No. six, Fenghuang Road 1, hi tech Zone, Shaanxi, Baoji Patentee after: SHAANXI URSTAR ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD. Address before: 710119, No. 32, foreign exchange Road, Xi'an hi tech Zone, Shaanxi Patentee before: Xian Jingshang Artificial Environment Co., Ltd. |