CN105222609A - A kind of compound closed cooling tower - Google Patents
A kind of compound closed cooling tower Download PDFInfo
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- CN105222609A CN105222609A CN201510745711.6A CN201510745711A CN105222609A CN 105222609 A CN105222609 A CN 105222609A CN 201510745711 A CN201510745711 A CN 201510745711A CN 105222609 A CN105222609 A CN 105222609A
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- tube bank
- air cooling
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- water
- evaporating cold
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Abstract
The invention belongs to cooling technology field, propose a kind of compound closed cooling tower, in the housing of a kind of compound closed cooling tower of proposition, be respectively arranged with axial flow blower (15), air cooling tube bank (2), spray equipment (5), evaporating cold tube bank (6) and water tank (8) from top to bottom; The two side walls that housing is corresponding is respectively arranged with thinking that air cooling pipe bundle provides the blind window I (3) of air intake; The lower end of air cooling tube bank (2) is connected with shutter II (13), and the inverted trapezoidal that air cooling tube bank (2) and blind window II (13) connect and compose upper end open is restrained; Set spray water system (5) is positioned at air cooling tube bank (2) and evaporating cold is restrained between (6); Evaporating cold tube bank (6) is horizontally disposed; The bottom of evaporating cold tube bank (6) is provided with air-inlet grille.Configuration and the adjustment of air cooling and evaporation flow of cold air are convenient in the present invention, can realize the object that industrial production is saved water and energy very well.
Description
Technical field
The invention belongs to cooling technology field, a kind of compound closed cooling tower of main proposition.
Background technology
Water is the primary condition of human survival, is also the necessary requirement of industrial production and development.China is the country of a water scarcity, and water resource of per capita is only 1/4th of world water resources amount, is fourth from the last position, the world.From China Statistical yearbook, national industrial water consumption in 2014 is 1,420 hundred million m
3, account for 22.83% of total water consumption, and account for 70% ~ 80% of industrial total water consumption as the cooling water of cooling medium.The cyclic utilization rate of China's water for industrial use is very low simultaneously, the comprehensive recycling rate of waterused of water in 2010 is only 67%, developed country generally reaches 85% ~ 90%, so the recycling rate of waterused improving water for industrial use particularly cooling water is great to alleviation shortage of water resources question meaning.
Cooling tower be can reach water recycle effect and one of cooling device be generally used.It utilizes air directly or indirectly to contact with high-temperature-hot-water, reduces water temperature, reaches the object recycling water for industrial use, be widely used in the industry-by-industries such as generating, oil, chemical industry, refrigeration, metallurgy, papermaking, food.According to the way of contact of circulation water and air, cooling tower can be divided into open cooling tower and closed cooling tower two kinds, most of cooling tower in present commercial Application is open cooling tower, and the problem such as ubiquity cycle water is poor, water consumption is large, energy loss is large, operating cost is large.
Relative to open circulation cooling system, the main distinction of closed circuit cooling system is cooling tower equipment, recirculated water heat is distributed in surrounding air by wall-type heat exchange by it, avoid recirculated water to contact with the direct of environment, in longtime running, do not have quantity of circulating water lose (ignoring system leakage reason) and reduce recirculated water pump head, achieve the object of saving water and energy.
Closed circuit cooling system generally adopts Air flow or evaporative cooling.Air flow closed cooling tower does not additionally consume moisture, but Air Heat Transfer Coefficient is low, needs very large heat exchange area, causes once investment large, and is difficult to when environment temperature is higher the technological requirement meeting recirculated water; Although evaporative cooling closed cooling tower can utilize latent heat heat exchange, meet recirculated water technological requirement when environment temperature is higher, but still need to consume part water resource, the requirement of user's water saving index can not be met in areas of serious.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is to propose a kind of compound closed cooling tower.
The present invention, for completing above-mentioned purpose, adopts following technical scheme:
A kind of compound closed cooling tower, is respectively arranged with axial flow blower, air cooling tube bank, spray equipment, evaporating cold tube bank and water tank from top to bottom in the housing of described compound closed cooling tower; Described air cooling tube bank is tilted from top to bottom, is symmetrical arranged; The import of described air cooling tube bank is all connected with processing medium import; The outlet of described air cooling tube bank is connected with the import that evaporating cold restrain, make processing medium be introduced into air cooled air cooling restrain carry out precooling cooling after enter evaporating cold again and restrain; The wall that described housing is corresponding is respectively arranged with thinking that air cooling pipe bundle provides the blind window I of air intake; The lower end of described air cooling tube bank is connected with shutter II, and described air cooling tube bank is restrained with the inverted trapezoidal that described blind window II connects and composes upper end open; Set spray water system is between air cooling tube bank and evaporating cold are restrained; Described evaporating cold tube bank is horizontally disposed, and the heat exchanger tube of evaporating cold tube bank can design certain angle of inclination as required, is convenient to manage the emptying of interior medium; The bottom of described evaporating cold tube bank is provided with thinking that axial flow blower provides the air-inlet grille of air; When environment temperature cuts off the water temperature lower than design, described shutter I opens, described shutter II and spray water system are closed, in pipe, medium and outside air carry out heat exchange mainly through air cooling section, overwhelming majority heat is by air cooling section discharged to environment, and what evaporating cold heat-exchanging tube bundle was restrained as air cooling supplements; When environment temperature cuts off the water temperature higher than design, described shutter I closedown, described blind window II and spray water system are opened, in pipe, medium heat is restrained discharged to environment primarily of described evaporating cold, the described air-inlet grille that air restrains bottom setting by described evaporating cold enters, carry the water vapour of evaporator section generation through shutter II, by axial flow blower discharged to environment, avoid air cooling tube bank outer cause due to humid air water entrainment fouling, corrosion problem, and SR when reducing compound closed cooling tower water spray operation; In actual motion operating process, the aperture of described shutter I, shutter II and the start and stop of described spray water system can be regulated, regulate the heat radiation load of air cooling tube bank and evaporating cold tube bank, play the object of system water saving, energy-saving run.
Described air cooling tube bank is finned tube.
Described air cooling tube bank and evaporating cold are restrained and are provided with drain tap and draining valve, for getting rid of gas in tube bank and sewage or liquid storage.
Described axial flow blower is induced air type blower fan, is positioned at the top of compound closed cooling tower; Described water tank is positioned at the bottom of compound closed cooling tower, and for collecting the shower water of evaporation and heat-exchange, water tank pattern can be equipment and carries header tank or concrete basin.
The processing medium of described compound closed cooling tower can be Municipal Sewage for Circulating, glycol water or other various medium for technical cooling in industrial production.
Described air cooling tube bank top is provided with cleaning device, regularly cleans air cooling tube bank, thus the dust that after preventing long-play, air cooling tube bank is surperficial and the dirt etc. that other reasons causes affect radiating effect.
The technological process of compound closed cooling tower proposed by the invention is: when environment temperature cuts off the water temperature lower than design, open blind window I, close spray equipment and blind window II, processing medium enters air cooling by processing medium import and restrains, evaporating cold tube bank is entered after air cooling tube bank cooling down, now evaporating cold tube bank supplements as air cooling tube bank, auxiliary air cooling heat exchange is carried out with the air entering closed cooling tower from air-inlet grille, and by controlling the outlet temperature of processing medium after size that blind window I opens or the heat exchange of fan operation FREQUENCY CONTROL, restrain finally by air cooling, processing medium after the heat exchange of evaporating cold tube bank air cooling is along processing medium outlet flow to water equipment,
Along with the rising of environment temperature, when environment temperature cuts off the water temperature higher than design, open spray water system, processing medium is introduced into after auxiliary temperature-reducing cooling is carried out in air cooling tube bank by processing medium import and enters evaporating cold tube bank, in the flow process of processing medium in evaporating cold tube bank, spraying water and air carries out heat exchange outward with pipe, heat is taken out of equipment by humid air, reduce the temperature of pipe Inner eycle water, and the outlet temperature of processing medium after heat exchange is controlled by the running frequency of the aperture and blower fan that control blind window I and shutter II, restrain through air cooling, processing medium after the heat exchange of evaporating cold tube bank air cooling is along processing medium outlet flow to water equipment.
The compound closed cooling tower of one that the present invention proposes, adopt the mode of Air flow and evaporative cooling cooperation, give full play to the air cooling heat exchange not few water consumption of water consumption and vaporation-type heat exchange, advantage that cooling water outlet temperature is low, make two kinds of types of cooling organically combine, mutually supplement; Adopt technique scheme to cool industrial recirculated water, meet the flowing law of cold fluid and hot fluid, be convenient to configuration and the adjustment of air cooling and evaporation flow of cold air, the object that industrial production is saved water and energy can be realized well.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, air cooling framework, 2, air cooling tube bank, 3, blind window I, 4, water collection device, 5, spray equipment, 6, evaporating cold tube bank, 7, air-inlet grille, 8, water tank, 9, water-supply apparatus, 10, processing medium outlet, 11, connecting pipe, 12, processing medium import, 13, blind window II, 14, maintenance panel, 15, axial flow blower.
Detailed description of the invention
With specific embodiment, the present invention is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of compound closed cooling tower, is respectively arranged with axial flow blower 15, air cooling tube bank 2, spray equipment 5, evaporating cold tube bank 6 and water tank 8 from top to bottom in the housing of described compound closed cooling tower; Described air cooling tube bank 2 is tilted from top to bottom, is symmetrical arranged; The import of described air cooling tube bank 2 is all connected with processing medium import 12; The outlet of air cooling tube bank 2 described in two groups is connected with the import that evaporating cold restrains 6, makes processing medium enter evaporating cold tube bank 6 higher than temperature of cutting off the water lower than being introduced into during design temperature after enhanced heat exchange, precooling cooling are carried out in air cooled air cooling tube bank 2 in environment temperature again; The two side walls that described housing is corresponding is respectively arranged with thinking that air cooling pipe bundle provides the blind window I 3 of air intake, in order to environment temperature lower than cut off the water temperature time, the size of opening by controlling blind window I 3 controls the air capacity entering closed cooling tower, makes air cooling restrain 2 pairs of processing mediums and carries out air cooling heat exchange; Described blind window I 3 cuts out higher than during design temperature in environment temperature, and described air cooling tube bank 3 is as the auxiliary heat dissipation tube bank of evaporating cold tube bank 6; Set spray equipment 5 is restrained between 6 in air cooling tube bank 3 and evaporating cold, environment temperature higher than cut off the water temperature lower than during design temperature in order to enter the processing medium that evaporating cold restrains lower the temperature to being restrained by air cooling, again evaporation and heat-exchange is carried out to the cold heat exchange of the advanced line space of processing medium; Set spray equipment 5 environment temperature lower than cut off the water temperature time close; Described evaporating cold is restrained 6 lateral inclinations and is arranged, ensureing to shut down coil pipe circulate cooling water inside when running can drain, and avoids shutdown in winter to freeze freezing.
Described evaporating cold tube bank 6 environment temperature lower than cut off the water temperature time restrain as air cooling, carry out direct heat transfer with air; Described air cooling is restrained 2 lower ends and is connected with blind window II 13, and described blind window II 13 is positioned at the top of spray equipment 5; Described blind window II 13 environment temperature lower than cut off the water temperature time close; Arrange with thinking that axial flow blower provides the air-inlet grille 7 of air between described evaporating cold tube bank and water tank; Described blind window II 13 environment temperature higher than cut off the water temperature time open, the size of opening by controlling blind window II 7 controls the air capacity entering closed cooling tower, the air entered in compound closed cooling tower by described air-inlet grille 7 flows from bottom to top, and form adverse current with the shower water of spray equipment, carry out evaporation and heat-exchange to processing medium, air cooling heat exchange is carried out in the air cooling tube bank that the air entered in compound closed cooling tower by described air-inlet grille 7 enters as the tube bank of evaporating cold tube bank auxiliary heat dissipation after spray equipment evaporation and heat-exchange; Described axial flow blower 15 is induced air type blower fan, is positioned at the top of compound closed cooling tower; Described water tank 8 is positioned at the bottom of compound closed cooling tower, and for collecting the shower water of evaporation and heat-exchange, water tank pattern can be and carries header tank or concrete basin.
Described air cooling tube bank 2 is finned tube.
The processing medium of described compound closed cooling tower can be Municipal Sewage for Circulating, glycol water or other various medium for technical cooling in industrial production.
Described air cooling tube bank 2 and evaporating cold tube bank 6 are provided with drain tap and draining valve, for getting rid of gas in tube bank and sewage or liquid storage.
Described air cooling tube bank top is provided with cleaning device, regularly cleans air cooling tube bank, thus the dust that after preventing long-play, air cooling tube bank is surperficial and the dirt etc. that other reasons causes affect radiating effect.
The technological process of compound closed cooling tower proposed by the invention is: when environment temperature lower than cut off the water temperature, open blind window I 3, close spray equipment 5 and blind window II 13, the evaporating cold tube bank of bottom stops evaporation operation to enter dry air cooling operational mode together with the air cooling tube bank on top, namely, processing medium enters air cooling by processing medium import and restrains 2, restrain after 2 cooling downs through air cooling and enter evaporating cold tube bank 6, now evaporating cold tube bank 6 is restrained as air cooling, air cooling heat exchange is carried out with the air entering closed cooling tower from air-inlet grille 7, along with the change of environment temperature, intake is regulated by the size or VFC axial flow blower 15 that control blind window I unlatching, thus the outlet temperature of processing medium after control heat exchange, restrain finally by air cooling, processing medium after the heat exchange of evaporating cold tube bank air cooling is along processing medium outlet flow to water equipment,
Along with the rising of environment temperature, when environment temperature higher than temperature of cutting off the water lower than design temperature time, open spray equipment 5, processing medium is introduced into after cooling down is carried out in air cooling tube bank 2 by processing medium import and enters evaporating cold tube bank 6, in the flow process of processing medium in air cooling tube bank 2 and evaporating cold tube bank 6, heat exchange is carried out with from the air of axial flow blower 15 and the outer shower water of the pipe of spray equipment 5, heat is taken out of equipment by air, reduce the temperature of pipe Inner eycle water, and the size of opening by controlling blind window I 3 controls the outlet temperature of processing medium after heat exchange, restrain through air cooling, processing medium after the heat exchange of evaporating cold tube bank air cooling is along processing medium outlet flow to water equipment,
Along with the rising of environment temperature, blind window I 3 progressively cuts out, and when environment temperature is higher than design temperature, blind window I 3 cuts out completely, opens blind window II 13 simultaneously; Processing medium enters air cooling tube bank 2 by processing medium import, evaporating cold is restrained 6 and carried out evaporation and heat-exchange, and the size of opening by controlling blind window II 13 controls the outlet temperature of processing medium after heat exchange, now air cooling tube bank 2 is restrained as the auxiliary heat dissipation of evaporating cold section, restrains the processing medium after 3 air cooling heat exchange along processing medium outlet flow to water equipment through air cooling tube bank 2, evaporating cold; When blind window II 13 is opened completely, closed cooling tower is in full load running status to meet processing medium outlet temperature.
The water quality of described evaporating cold section shower water meets " industrial circulating water cold water process design specification " (GB50050-2007).
Claims (4)
1. a compound closed cooling tower, is respectively arranged with axial flow blower (15), air cooling tube bank (2), spray equipment (5), evaporating cold tube bank (6) and water tank (8) from top to bottom in the housing of described compound closed cooling tower; It is characterized in that: described air cooling tube bank (2) tilts from top to bottom, is symmetrical arranged; The import of described air cooling tube bank is all connected with processing medium import; The outlet of described air cooling tube bank is connected with the import that evaporating cold restrain, make processing medium be introduced into air cooled air cooling restrain carry out precooling cooling after enter evaporating cold again and restrain (6); The two side walls that described housing is corresponding is respectively arranged with thinking that air cooling pipe bundle provides the blind window I (3) of air intake; The lower end of described air cooling tube bank (2) is connected with shutter II (13), and described air cooling tube bank (2) is restrained with the inverted trapezoidal that described blind window II (13) connects and composes upper end open; Set spray water system (5) is positioned at air cooling tube bank (2) and evaporating cold is restrained between (6); Described evaporating cold tube bank (6) is horizontally disposed, and the heat exchanger tube of evaporating cold tube bank (6) can design certain angle of inclination as required, is convenient to manage the emptying of interior medium; The bottom of described evaporating cold tube bank (6) is provided with thinking that axial flow blower provides the air-inlet grille of air; When environment temperature cuts off the water temperature lower than design, described shutter I opens, described shutter II and spray water system are closed, in pipe, medium and outside air carry out heat exchange mainly through air cooling section, overwhelming majority heat is by air cooling section discharged to environment, and what evaporating cold heat-exchanging tube bundle was restrained as air cooling supplements; When environment temperature cuts off the water temperature higher than design, described shutter I closedown, described blind window II and spray water system are opened, in pipe, medium heat is restrained discharged to environment primarily of described evaporating cold, the described air-inlet grille that air restrains bottom setting by described evaporating cold enters, carry the water vapour of evaporator section generation through shutter II, by axial flow blower discharged to environment, avoid air cooling tube bank outer cause due to humid air water entrainment fouling, corrosion problem, and SR when reducing compound closed cooling tower water spray operation; In actual motion operating process, the aperture of described shutter I, shutter II and the start and stop of described spray water system can be regulated, regulate the heat radiation load of air cooling tube bank and evaporating cold tube bank, play the object of system water saving, energy-saving run.
2. a kind of compound closed cooling tower as claimed in claim 1, is characterized in that: described air cooling tube bank (2) is finned tube.
3. a kind of compound closed cooling tower as claimed in claim 1, is characterized in that: described air cooling tube bank (2) and evaporating cold are restrained (6) and be provided with drain tap and draining valve, for getting rid of gas in tube bank and sewage or liquid storage.
4. a kind of compound closed cooling tower as claimed in claim 1, is characterized in that: the processing medium of described compound closed cooling tower can be Municipal Sewage for Circulating, glycol water or other various medium for technical cooling in industrial production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510745711.6A CN105222609A (en) | 2015-11-06 | 2015-11-06 | A kind of compound closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510745711.6A CN105222609A (en) | 2015-11-06 | 2015-11-06 | A kind of compound closed cooling tower |
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| Publication Number | Publication Date |
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| CN105222609A true CN105222609A (en) | 2016-01-06 |
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| CN201510745711.6A Pending CN105222609A (en) | 2015-11-06 | 2015-11-06 | A kind of compound closed cooling tower |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201697489U (en) * | 2010-06-17 | 2011-01-05 | 无锡市全发化工有限公司 | Cooling tower |
| CN203893696U (en) * | 2014-05-17 | 2014-10-22 | 赵旸 | Drawable tube bundle type evaporation air cooler |
| CN204100846U (en) * | 2014-09-12 | 2015-01-14 | 武汉中圣节能技术工程有限公司 | A kind of novel combination air cooler |
| CN204214299U (en) * | 2014-10-21 | 2015-03-18 | 北京朗博科科技发展有限公司 | Be provided with the water-saving closed type cooling tower of wet type air cooling system |
| CN104864741A (en) * | 2015-06-10 | 2015-08-26 | 黄荣锋 | Dry-wet combined water-saving cooling tower |
| CN204612525U (en) * | 2015-04-10 | 2015-09-02 | 洛阳隆华传热节能股份有限公司 | The compound closed cooling tower of operation can be done a kind of winter |
-
2015
- 2015-11-06 CN CN201510745711.6A patent/CN105222609A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201697489U (en) * | 2010-06-17 | 2011-01-05 | 无锡市全发化工有限公司 | Cooling tower |
| CN203893696U (en) * | 2014-05-17 | 2014-10-22 | 赵旸 | Drawable tube bundle type evaporation air cooler |
| CN204100846U (en) * | 2014-09-12 | 2015-01-14 | 武汉中圣节能技术工程有限公司 | A kind of novel combination air cooler |
| CN204214299U (en) * | 2014-10-21 | 2015-03-18 | 北京朗博科科技发展有限公司 | Be provided with the water-saving closed type cooling tower of wet type air cooling system |
| CN204612525U (en) * | 2015-04-10 | 2015-09-02 | 洛阳隆华传热节能股份有限公司 | The compound closed cooling tower of operation can be done a kind of winter |
| CN104864741A (en) * | 2015-06-10 | 2015-08-26 | 黄荣锋 | Dry-wet combined water-saving cooling tower |
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Application publication date: 20160106 |