CN103344136A - Blast furnace tower cooling mechanism - Google Patents
Blast furnace tower cooling mechanism Download PDFInfo
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- CN103344136A CN103344136A CN201310315701XA CN201310315701A CN103344136A CN 103344136 A CN103344136 A CN 103344136A CN 201310315701X A CN201310315701X A CN 201310315701XA CN 201310315701 A CN201310315701 A CN 201310315701A CN 103344136 A CN103344136 A CN 103344136A
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- cooling medium
- negative pressure
- tower body
- air
- evaporation
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Abstract
The invention discloses a blast furnace tower cooling mechanism. The mode of open evaporative cooling and negative pressure evaporative cooling two-stage combining is used, or the mode of air cooling, open evaporative cooling and negative pressure evaporative cooling three-stage combining is used, so that fluid materials (such as high-temperature flue gas) in a tower are cooled in a staged mode in sequence, heat exchanging efficiency between evaporative media and flue gas is greatly improved, cooling speed is improved, and energy consumption is lowered.
Description
Technical field
The present invention relates to a kind of cooling body, be specifically related to a kind of blast furnace tower cooler mechanism, be mainly used in the processing of lowering the temperature of the flowable materials such as flue gas in the blast furnace tower.Described blast furnace tower includes but not limited to coke-stove gas cold tower just.
Background technology
Existing blast furnace tower generally comprises the water pipe that is arranged in the tower chamber such as the cooling body of the first cold tower of coke-stove gas, the water cooling system that water circulation system and tower are outer.By cooling water constantly tower lower the temperature outward and handle and systemic circulation, reach the high-temperature flue gas in the tower chamber of flowing through from top to bottom implemented the purpose that cooling is handled.Its major defect is, first, the heat exchanger effectiveness between tower chamber inner conduit and the flue gas is lower; The second, need incessantly the cooling water processing of lowering the temperature, energy consumption is very high.
Summary of the invention
Technical problem to be solved by this invention is, a kind of blast furnace tower cooler mechanism is provided, realize the segmented of tower chamber flue gas is cooled with the air-cooled mode that combines by evaporative condenser mode or evaporative condenser, improve heat exchanger effectiveness, cooling velocity to reach, the purpose that cuts down the consumption of energy overcomes the defective that has blast furnace tower cooler mechanism now.
Technical scheme of the present invention is as follows:
A kind of blast furnace tower cooler mechanism comprises that the upper end has the tower body that gas approach, lower end have exhanst gas outlet, is characterized in that: also comprise being installed in the evaporation heat sink in the tower body and being installed in the tower body and being positioned at the air cooling heat exchanger of evaporation heat sink top; Described air cooling heat exchanger comprises several heat exchange units of installation arranged side by side; Described each heat exchange unit all has air inlet and the air outlet that communicates with the tower body space outerpace and be respectively in the relative both sides of tower body; Also comprise second blower fan near described air outlet one side; Described evaporation heat sink comprises several heat exchange units of installation arranged side by side; Described each heat exchange unit all has evaporative cooling medium entrance and the evaporative cooling medium outlet that communicates with the tower body space outerpace and be respectively in the relative both sides of tower body; Also comprise first blower fan that exports a side near described evaporative cooling medium; Described evaporative cooling medium inlet side is provided with the first spray header group.
Also comprise the negative pressure evaporation radiator that is installed in the tower body and is positioned at the evaporation heat sink below; Described negative pressure evaporation radiator comprises several heat exchange units of installation arranged side by side; Described each heat exchange unit all has negative pressure evaporation cooling medium entrance and the outlet of negative pressure evaporation cooling medium that communicates with the tower body space outerpace and be respectively in the relative both sides of tower body; Also comprise the blower unit that exports a side near described negative pressure evaporation cooling medium; Described negative pressure evaporation cooling medium inlet side is provided with the second spray header group; Comprise that also described vacuum cavity offers air door or is connected with air door by pipeline for the vacuum cavity of the described negative pressure evaporation cooling medium entrance of sealing and the second spray header group.
Described air door is connected with air dehumidifier.
Good effect of the present invention is: adopt two sections modes that combine of open evaporative cooling and negative pressure evaporation cooling, perhaps adopt air cooling, three sections modes that combine of open evaporative cooling and negative pressure evaporation cooling, successively tower inner fluid material (such as high-temperature flue gas) is implemented segmented cooling cooling, increased substantially the heat exchanger effectiveness between evaporative medium and the flue gas, improve cooling velocity, and reduced energy consumption.Specific as follows:
The first, tower inner fluid material (such as high-temperature flue gas) is when entering evaporation heat sink, shower water forms film at the heat exchange unit inwall, the film absorption evaporation rapidly behind the high-temperature flue gas heat of heat exchange unit outer wall of flowing through, and the mobile steam of taking away after the evaporation that utilizes wind.When evaporation heat sink entered the negative pressure evaporation radiator, by control door opening degree, air formed negative pressure in the vacuum cavity, makes the glassware for drinking water as evaporative medium that lower evaporating temperature be arranged, and the low section of flue-gas temperature still can be evaporated rapidly in the tower chamber.
The second, arrange in the scheme of air cooling heat exchanger in the present invention, under the blower unit effect, cooling air as cooling medium enters and is horizontally through the heat exchange unit internal channel from air inlet, discharge from air outlet, thereby take away the heat as tower chamber flowable materials (such as high-temperature flue gas), before evaporative cooling, implement pre-cooled to high temperature fluid material in the tower.
Three, owing to use normal-temperature water or normal temperature wind as cooling medium, do not need the cooling medium processing of lowering the temperature has been reduced the energy resource consumption of system works significantly, have remarkable energy saving effect.
Four, the present invention adopts the non-contacting dry type type of cooling between cooling medium and the flue gas, with spray wet method cooling raio, do not need follow-up water, gas to separate, further simplified operation, reduced processing cost.
Five, in the scheme of air dehumidifier is set, the air moisture content that enters vapo(u)rization system is lower, more is conducive to improve evaporation and heat-exchange efficient and speed.
Six, owing to compact conformation, succinct, the cost of investment of this cooling body, floor space and maintenance cost all reduce significantly.
Description of drawings
Fig. 1 is structure and the operation principle schematic diagram of the embodiment of the invention.Arrow represents wind direction among the figure.
The specific embodiment
Further specify the present invention below in conjunction with drawings and Examples.
Embodiment one
As Fig. 1, present embodiment comprises the air cooling heat exchanger 12 that is installed in the tower chamber.Described air cooling heat exchanger 12 comprises several heat exchange units of installation arranged side by side.Described each heat exchange unit all has air inlet and the air outlet that communicates with tower body 1 space outerpace and be respectively in tower body about 1 relative both sides.Also comprise second blower fan 13 near described air outlet one side.
During air cooling heat exchanger 12 work, flue gas air cooling heat exchanger 12 outer walls of flowing through from top to bottom enter and are horizontally through the heat exchange unit internal channel in second blower fan, 13 effect leewards from air inlet, take away flue gas heat from the heat exchange unit vias inner walls, discharge from air outlet at last, reach the purpose of cooled flue gas.
Still as Fig. 1, present embodiment also comprises the evaporation heat sink 10 that is installed in the tower body 1 and is positioned at air cooling heat exchanger 12 belows.Described evaporation heat sink 10 comprises several heat exchange units of installation arranged side by side.Described each heat exchange unit all has evaporative cooling medium entrance and the evaporative cooling medium outlet that communicates with tower body 1 space outerpace and be respectively in tower body about 1 relative both sides.Also comprise first blower fan 14 that exports a side near described evaporative cooling medium.
Described evaporative cooling medium inlet side is provided with the first spray header group 9.The described first spray header group 9 is connected water leg by water inlet pipe with water pump.Can also export a side at close evaporative cooling medium water fender is set, and below water fender, return pipe is set.
During evaporation heat sink 10 work, flow through the from top to bottom heat exchange unit outer wall of evaporation heat sink 10 of flue gas, shower water as evaporative medium enters and is horizontally through the heat exchange unit internal channel from the evaporative cooling medium entrance under 14 effects of first blower fan, thereby take away flue gas heat in the even membrane of heat exchange unit vias inner walls, evaporation, reach the purpose of cooled flue gas.Steam after the evaporation is discharged from the evaporative cooling medium outlet.In the mechanism of water fender is set, fully the evaporated liquid medium to be back to water leg through return pipe recycling.
Embodiment two
Still as Fig. 1, present embodiment is said to comprise the negative pressure evaporation radiator 4 that is installed in the tower body 1 and is positioned at evaporation heat sink 10 belows on the basis of embodiment one further.Described negative pressure evaporation radiator 4 comprises several heat exchange units of installation arranged side by side.Described each heat exchange unit all has negative pressure evaporation cooling medium entrance and the outlet of negative pressure evaporation cooling medium that communicates with tower body 1 space outerpace and be respectively in tower body about 1 relative both sides.Also comprise the blower unit 2 that exports a side near described negative pressure evaporation cooling medium.Blower unit 2 can be vavuum pump, also can be air-introduced machine.
The negative pressure evaporation cooling medium inlet side of described negative pressure evaporation radiator 4 is provided with the second spray header group 6.The described second spray header group 6 is connected water leg by water inlet pipe with water pump.Can also export a side at close negative pressure evaporation cooling medium water fender is set, and below water fender, return pipe is set.Comprise that also described vacuum cavity 5 offers air door 7 or is connected with air door 7 by pipeline for the vacuum cavity 5 of the described negative pressure evaporation cooling medium entrance of sealing and the second spray header group 6.Can also export a side at close negative pressure evaporation cooling medium water fender is set, and below water fender, return pipe is set.
By control air door 7 opening degrees, air forms negative pressure in the vacuum cavity 5, makes the glassware for drinking water as evaporative medium that lower evaporating temperature be arranged, and still can evaporate rapidly when flue-gas temperature is low in the tower chamber.Other operation principle is with evaporation heat sink 10.
Embodiment three
Still as Fig. 1, on the basis of embodiment two, described air door 7 is connected with air dehumidifier 8 further.
Heat exchange unit of the present invention comprises forms such as tube sheet bundle, elliptical tube.The position of flue gas import and export also can exchange up and down, if gas approach is descending, exporting last, then in embodiment one, evaporation heat sink 10 is positioned at air cooling heat exchanger 12 tops, in embodiment two, negative pressure evaporation radiator 4, evaporation heat sink 10 and air cooling heat exchanger 12 are arranged from top to bottom.
Claims (3)
1. blast furnace tower cooler mechanism, comprise that the upper end has the tower body (1) that gas approach (11), lower end have exhanst gas outlet (3), is characterized in that: also comprise being installed in the evaporation heat sink (10) in the tower body (1) and being installed in the tower body (1) and being positioned at the air cooling heat exchanger (12) of evaporation heat sink (10) top; Described air cooling heat exchanger (12) comprises several heat exchange units of installation arranged side by side; Described each heat exchange unit all has air inlet and the air outlet that communicates with tower body (1) space outerpace and be respectively in the relative both sides of tower body (1); Also comprise second blower fan (13) near described air outlet one side; Described evaporation heat sink (10) comprises several heat exchange units of installation arranged side by side; Described each heat exchange unit all has evaporative cooling medium entrance and the evaporative cooling medium outlet that communicates with tower body (1) space outerpace and be respectively in the relative both sides of tower body (1); Also comprise first blower fan (14) that exports a side near described evaporative cooling medium; Described evaporative cooling medium inlet side is provided with the first spray header group (9).
2. blast furnace tower cooler as claimed in claim 1 mechanism is characterized in that: also comprise the negative pressure evaporation radiator (4) that is installed in the tower body (1) and is positioned at evaporation heat sink (10) below; Described negative pressure evaporation radiator (4) comprises several heat exchange units of installation arranged side by side; Described each heat exchange unit all has negative pressure evaporation cooling medium entrance and the outlet of negative pressure evaporation cooling medium that communicates with tower body (1) space outerpace and be respectively in the relative both sides of tower body (1); Also comprise the blower unit (2) that exports a side near described negative pressure evaporation cooling medium; Described negative pressure evaporation cooling medium inlet side is provided with the second spray header group (6); Comprise that also described vacuum cavity (5) offers air door (7) or is connected with air door (7) by pipeline for the vacuum cavity (5) of the described negative pressure evaporation cooling medium entrance of sealing and the second spray header group (6).
3. blast furnace tower cooler as claimed in claim 2 mechanism, it is characterized in that: described air door (7) is connected with air dehumidifier (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310315701XA CN103344136A (en) | 2013-07-25 | 2013-07-25 | Blast furnace tower cooling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310315701XA CN103344136A (en) | 2013-07-25 | 2013-07-25 | Blast furnace tower cooling mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN103344136A true CN103344136A (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310315701XA Pending CN103344136A (en) | 2013-07-25 | 2013-07-25 | Blast furnace tower cooling mechanism |
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| CN (1) | CN103344136A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440879A (en) * | 2016-10-13 | 2017-02-22 | 张增光 | Dry material cooling box for mineral powder impurity removing equipment |
| CN108392974A (en) * | 2018-05-03 | 2018-08-14 | 烟台龙源电力技术股份有限公司 | A kind of system reducing thermal power plant's white cigarette plumage steam discharge capacity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026352A (en) * | 1974-09-04 | 1977-05-31 | Sergei Mikhailovich Andoniev | Device for evaporative cooling of metallurgical units |
| US5178210A (en) * | 1989-10-24 | 1993-01-12 | Gaz De France | Vapor pump employing counterflow exchange between air and combustion products without an intermediate fluid |
| CN101398263A (en) * | 2008-07-02 | 2009-04-01 | 石家庄新世纪煤化实业集团有限公司 | Coke oven raw gas three-segment cooling method for supply hot water for heating and bathing |
| CN201764761U (en) * | 2010-09-10 | 2011-03-16 | 姜鉴明 | Negative pressure vaporizing condenser |
| CN103063057A (en) * | 2013-01-30 | 2013-04-24 | 张周卫 | Three-flow low-temperature coiling tubular heat exchanger for feed gas cooler |
-
2013
- 2013-07-25 CN CN201310315701XA patent/CN103344136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026352A (en) * | 1974-09-04 | 1977-05-31 | Sergei Mikhailovich Andoniev | Device for evaporative cooling of metallurgical units |
| US5178210A (en) * | 1989-10-24 | 1993-01-12 | Gaz De France | Vapor pump employing counterflow exchange between air and combustion products without an intermediate fluid |
| CN101398263A (en) * | 2008-07-02 | 2009-04-01 | 石家庄新世纪煤化实业集团有限公司 | Coke oven raw gas three-segment cooling method for supply hot water for heating and bathing |
| CN201764761U (en) * | 2010-09-10 | 2011-03-16 | 姜鉴明 | Negative pressure vaporizing condenser |
| CN103063057A (en) * | 2013-01-30 | 2013-04-24 | 张周卫 | Three-flow low-temperature coiling tubular heat exchanger for feed gas cooler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440879A (en) * | 2016-10-13 | 2017-02-22 | 张增光 | Dry material cooling box for mineral powder impurity removing equipment |
| CN108392974A (en) * | 2018-05-03 | 2018-08-14 | 烟台龙源电力技术股份有限公司 | A kind of system reducing thermal power plant's white cigarette plumage steam discharge capacity |
| CN108392974B (en) * | 2018-05-03 | 2024-05-14 | 烟台龙源电力技术股份有限公司 | System for reducing emission of white smoke plume water vapor of thermal power plant |
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| PB01 | Publication | ||
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Application publication date: 20131009 |