CN202810961U - Low-temperature smoke gas afterheat recovery combined heat and power generation system of coke oven - Google Patents
Low-temperature smoke gas afterheat recovery combined heat and power generation system of coke oven Download PDFInfo
- Publication number
- CN202810961U CN202810961U CN2012204406383U CN201220440638U CN202810961U CN 202810961 U CN202810961 U CN 202810961U CN 2012204406383 U CN2012204406383 U CN 2012204406383U CN 201220440638 U CN201220440638 U CN 201220440638U CN 202810961 U CN202810961 U CN 202810961U
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- Prior art keywords
- coke oven
- low
- steam
- flue gas
- smoke gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Coke Industry (AREA)
Abstract
The utility model relates to the technical field of smoke gas afterheat recovery and utilization of a coke oven, in particular to a low-temperature smoke gas afterheat recovery combined heat and power generation system of a coke oven. The low-temperature smoke gas afterheat recovery combined heat and power generation system comprises a coke oven flue, an afterheat recovery system, a condenser, a water pump and a motive power generator set. Compared with the prior art, the low-temperature smoke gas afterheat recovery combined heat and power generation system of the coke oven has the advantages that on the premise of maintaining the coke oven process unchanged, the smoke gas afterheat of the coke furnace is utilized for depth recovery, the recovery steam is used for electricity generation, the energy saving and the emission reduction of the coke oven are realized, meanwhile, dead steam after the electricity generation can also be utilized to form low-temperature and low-pressure steam through a latent heat recoverer, or partial hot water is output to heat users to be used.
Description
Technical field
The utility model relates to a kind of waste heat of coke-oven flue gas recovery and utilization technology field, and particularly a kind of coke oven low-temperature flue gas waste heat reclaims co-generation unit and method.
Technical background
Coking industry receives much concern as the high energy consumption industry.In the coking by coke oven process, produce the discarded flue gas of a large amount of low temperature, about 250 ℃ of these coke oven flue gas temperature-averagings, under different coke-oven, the different running environment, flue-gas temperature has to a certain degree different, and between 210-310 ℃, 50 hole 6m coke ovens per hour discharge about 60,000 standard cubic meters of exhaust gas volumn usually.At present these low-temperature flue gas directly by stack emission in atmosphere, cause energy waste and environmental thermal pollution.Therefore waste heat of coke-oven flue gas recovery research is one of focus of coking industry energy-saving and emission-reduction always.
Reclaim the main heat pipe boiler recovered steam that adopts for production and application for the coke oven flue gas low temperature exhaust heat at present, mainly have following problem: the one, the cryogenic waste heat resource ratio is large, and flue-gas temperature is still higher behind the recovered steam, and residual heat resources are not fully utilized; The 2nd, the multiplex coke-stove gas of coke oven acts as a fuel, and coke-stove gas contains a large amount of moisture content, so moisture is larger in the coke oven flue gas, and latent heat is worth large, does not reclaim at present; The 3rd, recovered steam is for the production of the scene, but because the steam user is few, utilization ratio is not enough after the Steam Recovery.
The model utility content
The utility model purpose is to provide a kind of coke oven low-temperature flue gas waste heat to reclaim co-generation unit and method, large with all kinds of coke oven low-temperature flue gas waste heat reclaiming system cryogenic waste heat resource ratios in the solution prior art, flue-gas temperature is still higher behind the recovered steam, the technical matters that residual heat resources are not fully utilized.
The utility model purpose is achieved through the following technical solutions:
A kind of coke oven low-temperature flue gas waste heat reclaims co-generation unit, comprises coke oven flue, residual neat recovering system, vapour condenser, water pump and dynamic power unit,
Described coke oven flue be connected with chimney again after residual neat recovering system is connected, form the flue gas subtense angle,
Described residual neat recovering system, dynamic power unit, vapour condenser, water pump connect successively, form carbonated drink power generation cycle subtense angle,
Described residual neat recovering system comprises superheater, drum, vaporizer, economizer, latent heat recoverer, and superheater, drum, vaporizer, economizer, latent heat recoverer connect successively.
Described carbonated drink power generation cycle subtense angle further comprises condenser, water pump, vaporizer, superheater, dynamic power unit, economizer, latent heat recoverer and steam-water separator, after coke oven flue gas passes through superheater, vaporizer, economizer and latent heat recoverer successively, will reclaim the flue gas of waste heat by blower fan and discharge by former chimney; Water in the described carbonated drink power generation sub-system is successively through entering drum behind latent heat recoverer, economizer, the vaporizer, steam passes through superheater successively after carbonated drink is separated, generator set, a part of exhaust steam after the generating can directly be supplied with hot user after by latent heat recoverer, and another part is sent into steam/water circulating by the vapour condenser condensation again by water pump.
The described water supply that supplies water out to provide from water pump is heated through latent heat recoverer and economizer successively, supply water after the heating and generate steam water interface by vaporizer, steam water interface is isolated steam by the overheated rear generation superheated vapor of superheater by steam-water separator, superheated vapor send the generating of dynamic power unit, an exhaust steam part is used by flowing to the user after generating, and another part recycles for supplying water by condenser condenses; Coke oven flue gas flows to chimney after further giving the heating of supplying water through vaporizer, economizer and latent heat recoverer successively behind superheater and the steam heat-exchanging.
Described coke oven and chimney be provided with pipeline, pipeline is provided with stop valve.
Preferably, described superheater, vaporizer, economizer, latent heat recoverer and steam-water separator are that flue gas subtense angle and carbonated drink power generation sub-system share.
Compared with prior art, the utility model has following beneficial effect:
1, a kind of coke oven low-temperature flue gas waste heat recovery co-generation unit of the present utility model and method are keeping under the constant prerequisite of coke oven technique, utilize waste heat of coke-oven flue gas to carry out the degree of depth and reclaim, and recovered steam is used for generating, the energy-saving and emission-reduction of realization coke oven;
2, a kind of coke oven low-temperature flue gas waste heat of the present utility model reclaims co-generation unit and method and also can utilize exhaust steam after the generating to form low temperature and low pressure steam by latent heat recoverer or hot water is exported to hot user's use.
Description of drawings
Fig. 1 is the process flow diagram that a kind of coke oven low-temperature flue gas waste heat of the present utility model reclaims co-generation unit and method.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model in detail.
Please refer to Fig. 1, a kind of coke oven low-temperature flue gas waste heat of the present utility model reclaims co-generation unit, comprise flue gas subtense angle and carbonated drink power generation sub-system, described flue gas subtense angle comprises coke oven flue 1, superheater 2 and vaporizer 3, described carbonated drink power generation cycle subtense angle further comprises condenser 4, water pump 5, vaporizer 3, superheater 2 and dynamic power unit 6, described superheater 2 and vaporizer 3 economizers 7, latent heat recoverer 8 and drum 9 are that flue gas subtense angle and carbonated drink power generation sub-system share, the flue gas of coke oven flue 1 passes through superheater 2 successively, vaporizer 3, behind economizer 7 and the latent heat recoverer 8, to reclaim the flue gas of waste heat discharges by chimney 10 by blower fan 12, water in the described carbonated drink power generation sub-system passes through latent heat recoverer 8 successively, economizer 7, enter drum 9 behind the vaporizer 3, steam passed through superheater 2 successively after carbonated drink in drum 9 was separated, generator set 6, a part of exhaust steam after the generating can directly be supplied with hot user after by latent heat recoverer 11, and another part is sent into steam/water circulating by vapour condenser 4 condensations again by water pump 5.
Heat through latent heat recoverer 8 and economizer 7 successively for the water supply that water out provides from water pump 5, supply water after the heating and generate steam water interface by vaporizer 3, steam water interface is isolated steam by superheater 2 overheated rear generation superheated vapors by the steam-water separator in the drum 9, superheated vapor send the dynamic power unit 6 generatings, an exhaust steam part is used to the user by latent heat recoverer 11 formation delivery after generating, and another part is condensed into to supply water by condenser 4 and recycles; Flue gas in the coke oven flue 1 is discharged by original chimney 10 after heating further for water supply through vaporizer 3, economizer 7 with latent heat recoverer 8 successively behind superheater 3 and the steam heat-exchanging.System also comprises blower fan 12, and blower fan 12 is connected between latent heat recoverer 8 and the chimney 10, and flue gas is discharged from chimney 10 through blower fan 12.
Coke oven 1 and chimney 10 be provided with pipeline, pipeline is provided with stop valve 13, if equipment needs repairing and can open stop valve flue gas is directly entered chimney; Stop valve 13 is closed, and coke oven flue gas out enters the flue gas subtense angle and carries out heat recovery.
The electric heating co-producing method is characterized in that, is comprised of following steps:
(1) feedwater is sent into latent heat recoverer 8, economizer 7, vaporizer 3 rear formation steam water interfaces by feed water pump 5 and is sent into drum 9;
(2) produce saturated vapour behind steam-water separator and send into superheater 2 generation superheated vapors, superheated vapor is sent into dynamic power unit 6 and is produced electric power, exports to electric user and uses;
(3) superheated vapor forms exhaust steam after 6 actings of dynamic power unit, the part exhaust steam forms low temperature and low pressure steam by latent heat recoverer 11 or part hot water is exported to hot user's use, all the other exhaust steam are condensed into water through condenser 4, send into feed water pump 5 and continue pressurization, form and continue circulation.
Comprehensive the above the utility model structure and implementation methods are as can be known, a kind of coke oven low-temperature flue gas waste heat of the present utility model reclaims co-generation unit and method is keeping under the constant prerequisite of coke oven technique, utilizing waste heat of coke-oven flue gas to carry out the degree of depth reclaims, recovered steam is used for generating, realizes the coke oven energy-saving and emission-reduction; Simultaneously, also can utilize exhaust steam after the generating to form low temperature and low pressure steam or part hot water by latent heat recoverer exports to hot user and uses.
More than disclosed only be several specific embodiments of the application, but the application is not limited thereto, the changes that any person skilled in the art can think of all should drop in the application's the protection domain.
Claims (2)
1. a coke oven low-temperature flue gas waste heat reclaims co-generation unit, it is characterized in that, comprises coke oven flue, residual neat recovering system, vapour condenser, water pump and dynamic power unit,
Described coke oven flue be connected with chimney again after residual neat recovering system is connected, form the flue gas subtense angle,
Described residual neat recovering system, dynamic power unit, vapour condenser, water pump connect successively, form carbonated drink power generation cycle subtense angle,
Described residual neat recovering system comprises superheater, drum, vaporizer, economizer, latent heat recoverer, and superheater, drum, vaporizer, economizer, latent heat recoverer connect successively.
2. coke oven low-temperature flue gas waste heat as claimed in claim 1 reclaims co-generation unit, it is characterized in that, coke oven and chimney be provided with pipeline, pipeline is provided with stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204406383U CN202810961U (en) | 2012-08-31 | 2012-08-31 | Low-temperature smoke gas afterheat recovery combined heat and power generation system of coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204406383U CN202810961U (en) | 2012-08-31 | 2012-08-31 | Low-temperature smoke gas afterheat recovery combined heat and power generation system of coke oven |
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| Publication Number | Publication Date |
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| CN202810961U true CN202810961U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204406383U Expired - Lifetime CN202810961U (en) | 2012-08-31 | 2012-08-31 | Low-temperature smoke gas afterheat recovery combined heat and power generation system of coke oven |
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| CN (1) | CN202810961U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787869A (en) * | 2012-08-31 | 2012-11-21 | 上海宝钢节能技术有限公司 | Cogeneration system utilizing recycled waste heat of low-temperature flue gas of coke oven |
| CN105114971A (en) * | 2015-09-11 | 2015-12-02 | 武汉凯比思电力设备有限公司 | Alkali recovery flue gas waste heat recovery system and method |
| US11299925B2 (en) | 2017-10-11 | 2022-04-12 | Tps Ip, Llc | Oven with split doors |
| US11346560B2 (en) | 2017-12-29 | 2022-05-31 | Tps Ip, Llc | Oven wall compositions and/or structures |
| US11493275B2 (en) * | 2017-10-10 | 2022-11-08 | Tps Ip, Llc | Oven with renewable energy capacities |
| US11585701B2 (en) | 2017-10-27 | 2023-02-21 | Tps Ip, Llc | Intelligent oven |
-
2012
- 2012-08-31 CN CN2012204406383U patent/CN202810961U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787869A (en) * | 2012-08-31 | 2012-11-21 | 上海宝钢节能技术有限公司 | Cogeneration system utilizing recycled waste heat of low-temperature flue gas of coke oven |
| CN105114971A (en) * | 2015-09-11 | 2015-12-02 | 武汉凯比思电力设备有限公司 | Alkali recovery flue gas waste heat recovery system and method |
| US11493275B2 (en) * | 2017-10-10 | 2022-11-08 | Tps Ip, Llc | Oven with renewable energy capacities |
| US11953266B2 (en) | 2017-10-10 | 2024-04-09 | Tps Ip, Llc | Oven with renewable energy capacities |
| US11953267B2 (en) | 2017-10-10 | 2024-04-09 | Tps Ip, Llc | Oven with renewable energy capacities |
| US11299925B2 (en) | 2017-10-11 | 2022-04-12 | Tps Ip, Llc | Oven with split doors |
| US12031370B2 (en) | 2017-10-11 | 2024-07-09 | Tps Ip, Llc | Oven with split doors |
| US11585701B2 (en) | 2017-10-27 | 2023-02-21 | Tps Ip, Llc | Intelligent oven |
| US11346560B2 (en) | 2017-12-29 | 2022-05-31 | Tps Ip, Llc | Oven wall compositions and/or structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BAOSTEEL ENERGY-SAVING + ENVIRONMENTAL-PR Free format text: FORMER NAME: SHANGHAI BAOSTEEL ENERGY TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201999 Baoshan District, G Road, Lane No. 550, No. 7, business building, floor 2, level 3, level Patentee after: SHANGHAI BAOSTEEL ENERGY TECH Co.,Ltd. Address before: 201999, room 1813, No. 3245, Mudanjiang Road, Baoshan District, Shanghai, Baoshan District Patentee before: Baosteel Energy Technology Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
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| CX01 | Expiry of patent term |