CN103953910A - Ammonia water waste heat boiler and technology recycling coke oven flue gas - Google Patents
Ammonia water waste heat boiler and technology recycling coke oven flue gas Download PDFInfo
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- CN103953910A CN103953910A CN201410211612.5A CN201410211612A CN103953910A CN 103953910 A CN103953910 A CN 103953910A CN 201410211612 A CN201410211612 A CN 201410211612A CN 103953910 A CN103953910 A CN 103953910A
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Abstract
The invention provides an ammonia water waste heat boiler and a technology recycling coke oven flue gas. The ammonia water waste heat boiler recycling the coke oven flue gas comprises an ammonia water mixing working medium power circulating system, a boiler main body and a chimney, wherein the boiler main body is a force circulating stand boiler, a horizontal inlet flue is arranged at the top of the boiler main body, a horizontal outlet flue is arranged at the bottom of the boiler main body, the chimney is connected outside the outlet flue, the ammonia water mixing working medium power circulating system is divided into a heat exchanging part and a power part, and the heat exchanging part is arranged inside the boiler main body. Ammonia water is used as a working medium, and the efficiency higher than a normal boiler can be achieved in a low temperature flue gas field. The ammonia water waste heat boiler and the technology can recycle and reuse the waste heat of the coke oven flue gas, the energy is saved, and the environment is protected.
Description
Technical field
The invention belongs to the technical field of recycling flue gases of cock oven, relate in particular to a kind of ammoniacal liquor waste heat boiler and technique that reclaims flue gases of cock oven.
Background technology
In the coke oven course of work, the coke-stove gas of heating use, introduces by external pipe is built on stilts, and coke-stove gas is delivered to coke oven basement after preheating, by lower jet pipe, coal gas is sent into flue bottom, combustion chamber and converges burning with the air being entered by waste gas exchange shutter.Waste gas after burning is crossed over hole through flue bottom and is entered the flue of down current, then through regenerator, after the part sensible heat of waste gas being reclaimed by checker brick, enters atmosphere through bottom flue, waste gas exchange shutter, point flue, main chimney flue, chimney.Enter at present the outer row's of chimney flue gases of cock oven temperature greatly about 300 DEG C, smoke components is close with air, to the corrosivity of waste heat boiler a little less than.But, the temperature of 300 DEG C is for the significant economic benefit of the more difficult acquisition of conventional waste heat boiler, at present, flue gases of cock oven is mainly directly entered in atmosphere and is gone, cause wasting of the energy, also polluted environment, therefore taking measures, it is significant to reducing energy consumption and promoting the strategy of sustainable development that flue gases of cock oven is carried out to heat recovery.
Taking ammoniacal liquor as being subject to the heat transfer process of hot working fluid due to its unfixing solidifying boiling point, can be preferably in heat transfer process and residual heat resources match, and the waste heat boiler of employing taking ammoniacal liquor as working medium, in low-temperature flue gas field, can reach the efficiency higher than conventional boiler, therefore, can, for reclaiming flue gases of cock oven, obtain in proper order good economic benefit.
Summary of the invention
Technical problem to be solved by this invention is the problem for above-mentioned existence, a kind of ammoniacal liquor waste heat boiler and technique that reclaims flue gases of cock oven is provided, this boiler is taking ammoniacal liquor as heat absorption working medium, flue gases of cock oven is thermal source, ammonia-water mixture produces certain density ammonia steam after absorption heat, is sent to acting generating in ammoniacal liquor turbine.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven, comprise power circulation system, boiler body, the chimney of ammoniacal liquor mixed working fluid, described boiler body is forced circulation vertical boiler, boiler body top arranges horizontal access flue, boiler body bottom arranges Horizontal Exit flue, the external chimney of exhaust pass; The power circulation system of described ammoniacal liquor mixed working fluid is divided into heat exchanging part and power section, and two parts are connected by pipeline, and described heat exchanging part is arranged at boiler body inside.
Press such scheme, described heat exchanging part comprises economizer, evaporimeter and superheater, and described superheater, evaporimeter and economizer are connected by pipeline from top to bottom successively in boiler body inside, and the import and export of superheater, evaporimeter and economizer are equipped with header; Described power section comprises fluid reservoir, feed pump and vapour liquid separator, and described economizer import is connected with feed pump outlet by feedwater piping, and feed pump import is connected with fluid reservoir; In described fluid reservoir, store ammoniacal liquor mixed working fluid; Described gas-liquid separator is connected with evaporator outlet header by pipeline, and gas-liquid separator bottom is connected with fluid reservoir top by pipeline.
Press such scheme, described economizer exit is connected with evaporator, and evaporator outlet is connected with vapour liquid separator import by the inlet pipeline that is arranged at vapour liquid separator side, and the outlet conduit at vapour liquid separator top is connected with superheater import.
Press such scheme, on described economizer outer wall, be furnished with fin.
A kind of technique of the ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven, the horizontal access flue that flue gases of cock oven arranges from described boiler body top enters boiler body, turning over 90 ° at gas approach exit flue gas flows downward, first flue gas passes to heat horizontal superheater, then flow through successively evaporimeter and economizer, flue gas turns over 90 °, and along continuous straight runs enters chimney from exhaust pass, enters atmosphere; Ammoniacal liquor mixed working fluid in fluid reservoir pressurizes and delivers to the heat that absorbs flue gas in economizer through feed pump, become saturated liquid, after mixing, header delivers to evaporimeter, after being heated, become saturated vapor in evaporimeter, then deliver in gas-liquid separator and remove the drop being mingled with, through header, deliver to superheater, in superheater, delivered to subsequent processing by after overheated, the liquid of separating in gas-liquid separator is delivered in fluid reservoir, again participates in circulation.
The invention has the beneficial effects as follows: 1, a kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven is provided, recycles flue gases of cock oven, economize on resources, protection of the environment; 2, on economizer outer wall, be furnished with fin, with enhanced heat exchange, reduce boiler size; 3,, taking ammoniacal liquor as working medium, in low-temperature flue gas field, can reach the efficiency higher than conventional boiler.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Wherein: 1. economizer, 2. evaporimeter, 3. superheater, 4. superheater outlet conduit, 5. vapour liquid separator, 6. vapour liquid separator inlet pipeline, 7. vapour liquid separator outlet conduit, 8. fluid reservoir, 9. feed pump, 10. feedwater piping, 11. headers, 12. boiler inlet flues, 13. boiler export flues, 14. boiler bodies.
Detailed description of the invention
For understanding better the present invention, below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of ammoniacal liquor waste heat boiler and technique that reclaims flue gases of cock oven, comprise fluid reservoir 8, feed pump 9, economizer 1, evaporimeter 2, superheater 3, boiler body 14, boiler body is vertical boiler, boiler body top arranges horizontal access flue 12, boiler body bottom arranges Horizontal Exit flue 13, the external chimney of exhaust pass, boiler body inside sets gradually superheater from top to bottom, evaporimeter, economizer, economizer exit is connected with evaporator, evaporator outlet is connected with vapour liquid separator 5 imports by the inlet pipeline that is arranged at vapour liquid separator side, the outlet conduit at vapour liquid separator top is connected with superheater import, import and export are equipped with header 11, to be heated evenly in guarantee pipe, economizer import is connected with feed pump outlet by feedwater piping 10, feed pump import is connected with fluid reservoir, on economizer outer wall, be furnished with fin, with enhanced heat exchange, reduce boiler size, superheater outlet is delivered to subsequent processing by header by overheated ammonia vapor, gas-liquid separator is connected with evaporator outlet header by pipeline, gas-liquid separator bottom is connected with fluid reservoir top by pipeline, in fluid reservoir, store ammoniacal liquor mixed working fluid, taking ammoniacal liquor as working medium, in low-temperature flue gas field, can reach the efficiency higher than conventional boiler.
When the work of ammoniacal liquor waste heat boiler, from technological process flue gases of cock oven out, exhaust gases passes through outside flue and liner brick wall enters boiler inlet flue 12 from boiler upper end level, turn over 90 ° at boiler inlet flue exit flue gas and flow downward, first flue gas passes to heat horizontal superheater 3, then flow through successively evaporimeter 2, economizer 1, temperature is down to 130 DEG C of left and right, flue gas turns over 90 °, and along continuous straight runs enters chimney from exhaust pass 13, enters atmosphere.
Liquid ammoniacal liquor from fluid reservoir 8 pressurizes and delivers to the heat that absorbs flue gas in economizer 1 through feed pump 9, become saturated liquid, after mixing, header 11 delivers to evaporimeter 2, after being heated, become saturated vapor in evaporimeter, deliver in gas-liquid separator 5, in separator, remove the drop being mingled with, through header, deliver to superheater 3, in superheater, delivered to subsequent processing by after overheated.The liquid of separating in gas-liquid separator is delivered in fluid reservoir, again participates in circulation.
Claims (5)
1. one kind is reclaimed the ammoniacal liquor waste heat boiler of flue gases of cock oven, it is characterized in that, comprise power circulation system, boiler body, the chimney of ammoniacal liquor mixed working fluid, described boiler body is forced circulation vertical boiler, boiler body top arranges horizontal access flue, boiler body bottom arranges Horizontal Exit flue, the external chimney of exhaust pass; The power circulation system of described ammoniacal liquor mixed working fluid is divided into heat exchanging part and power section, and two parts are connected by pipeline, and described heat exchanging part is arranged at boiler body inside.
2. a kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven according to claim 1, it is characterized in that, described heat exchanging part comprises economizer, evaporimeter and superheater, described superheater, evaporimeter and economizer are connected by pipeline from top to bottom successively in boiler body inside, and the import and export of superheater, evaporimeter and economizer are equipped with header; Described power section comprises fluid reservoir, feed pump and vapour liquid separator, and described economizer import is connected with feed pump outlet by feedwater piping, and feed pump import is connected with fluid reservoir; In described fluid reservoir, store ammoniacal liquor mixed working fluid; Described gas-liquid separator is connected with evaporator outlet header by pipeline, and gas-liquid separator bottom is connected with fluid reservoir top by pipeline.
3. a kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven according to claim 2, it is characterized in that, described economizer exit is connected with evaporator, evaporator outlet is connected with vapour liquid separator import by the inlet pipeline that is arranged at vapour liquid separator side, and the outlet conduit at vapour liquid separator top is connected with superheater import.
4. a kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven according to claim 3, is characterized in that, on described economizer outer wall, is furnished with fin.
5. adopt the technique of one of the claims described a kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven, it is characterized in that: the horizontal access flue that flue gases of cock oven arranges from described boiler body top enters boiler body, turning over 90 ° at gas approach exit flue gas flows downward, first flue gas passes to heat horizontal superheater, then flow through successively evaporimeter and economizer, flue gas turns over 90 °, and along continuous straight runs enters chimney from exhaust pass, enters atmosphere; Ammoniacal liquor mixed working fluid in fluid reservoir pressurizes and delivers to the heat that absorbs flue gas in economizer through feed pump, become saturated liquid, after mixing, header delivers to evaporimeter, after being heated, become saturated vapor in evaporimeter, then deliver in gas-liquid separator and remove the drop being mingled with, through header, deliver to superheater, in superheater, delivered to subsequent processing by after overheated, the liquid of separating in gas-liquid separator is delivered in fluid reservoir, again participates in circulation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211612.5A CN103953910B (en) | 2014-05-16 | 2014-05-16 | A kind of ammoniacal liquor waste heat boiler and technique reclaiming flue gases of cock oven |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410211612.5A CN103953910B (en) | 2014-05-16 | 2014-05-16 | A kind of ammoniacal liquor waste heat boiler and technique reclaiming flue gases of cock oven |
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| Publication Number | Publication Date |
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| CN103953910A true CN103953910A (en) | 2014-07-30 |
| CN103953910B CN103953910B (en) | 2016-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548930A (en) * | 2014-12-29 | 2015-04-29 | 大连贝斯特环境工程设备有限公司 | Selective catalytic reduction (SCR) denitration method and device for ammonia water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4875436A (en) * | 1988-02-09 | 1989-10-24 | W. R. Grace & Co.-Conn. | Waste heat recovery system |
| CN201772424U (en) * | 2009-12-21 | 2011-03-23 | 中国船舶重工集团公司第七�三研究所 | Coke oven gas primary-cooling waste-heat boiler |
| CN102287800A (en) * | 2011-06-10 | 2011-12-21 | 邢同春 | System for producing steam by utilizing coke oven to heat waste gas and waste heat |
| CN202220628U (en) * | 2011-09-13 | 2012-05-16 | 上海盛合新能源科技有限公司 | Combined cycle power generation system for increasing use efficiency of heat source |
| CN203927866U (en) * | 2014-05-16 | 2014-11-05 | 中冶南方工程技术有限公司 | A kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven |
-
2014
- 2014-05-16 CN CN201410211612.5A patent/CN103953910B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4875436A (en) * | 1988-02-09 | 1989-10-24 | W. R. Grace & Co.-Conn. | Waste heat recovery system |
| CN201772424U (en) * | 2009-12-21 | 2011-03-23 | 中国船舶重工集团公司第七�三研究所 | Coke oven gas primary-cooling waste-heat boiler |
| CN102287800A (en) * | 2011-06-10 | 2011-12-21 | 邢同春 | System for producing steam by utilizing coke oven to heat waste gas and waste heat |
| CN202220628U (en) * | 2011-09-13 | 2012-05-16 | 上海盛合新能源科技有限公司 | Combined cycle power generation system for increasing use efficiency of heat source |
| CN203927866U (en) * | 2014-05-16 | 2014-11-05 | 中冶南方工程技术有限公司 | A kind of ammoniacal liquor waste heat boiler that reclaims flue gases of cock oven |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548930A (en) * | 2014-12-29 | 2015-04-29 | 大连贝斯特环境工程设备有限公司 | Selective catalytic reduction (SCR) denitration method and device for ammonia water |
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| CN103953910B (en) | 2016-03-02 |
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