CN204283520U - Waste heat of coke oven crude gas power generation system - Google Patents
Waste heat of coke oven crude gas power generation system Download PDFInfo
- Publication number
- CN204283520U CN204283520U CN201420482869.XU CN201420482869U CN204283520U CN 204283520 U CN204283520 U CN 204283520U CN 201420482869 U CN201420482869 U CN 201420482869U CN 204283520 U CN204283520 U CN 204283520U
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- China
- Prior art keywords
- heat
- gas
- coke oven
- pipe
- heat exchanger
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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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- Air Supply (AREA)
- Coke Industry (AREA)
Abstract
The utility model provides a kind of waste heat of coke oven crude gas power generation system, and described small-sized afterheat generating system is made up of blower, overall nest plate type high-temperature heat pipe gas-gas heat exchanger, airduct, superheater, exhaust heat boiler, air preheater, economizer, steam-turbine unit, generator set, water pump.Described overall nest plate type high-temperature heat pipe gas-gas heat exchanger heat absorbing end is arranged in coke oven coke oven uprising tube road, and release end of heat is arranged on outside increase in pipeline.Described system by air channel flow process is: after cool air is blasted air preheater heat exchange by blower, enters overall nest plate type high-temperature heat pipe gas-gas heat exchanger, enters superheater, enter exhaust heat boiler, enter air preheater, economizer.The utility model utilizes waste heat of coke oven crude gas to heat high temperature air, and high temperature air heating steam presses through hot steam in producing, and then drives small steam turbine generating.
Description
[technical field]
The utility model relates to a kind of waste heat of coke oven crude gas power generation system.
[background technique]
In coking by coke oven process, from carbonizing chamber through asending pipe raw gas temperature out up to 650 ~ 700 DEG C.Its heat accounts for 32% ~ 35% of coking heat dissipation total amount.Common process is: raw coke oven gas enters gas collecting tube through asending pipe, sprays a large amount of ammoniacal liquor, be cooled to about 80 ~ 85 DEG C at the pipe bridge place of asending pipe and gas collecting tube.Its sensible heat is wasted, and takes with regard to heat that it is in second with regard to coke oven product out of.
Current asending pipe residual-heat utilization technology has: Ascension Pipe Gasification cooling technology; Conduction oil chuck technology; Heat pipe heat exchanging technology.But such technology produces the low-quality energy, without too many purposes.How utilizing a large amount of residual heat resources of crude-gas sensible heat and not relating to other operations to produce the high-quality energy is the key point promoting raw coke oven gas residual-heat utilization technology at present.
[summary of the invention]
The utility model provides a kind of coal oven dithio-gas small-sized afterheat generating system, system solves the problem and only utilize raw coke oven gas residual heat resources to produce the bottleneck of the high-quality energy, both realized the cascade utilization of residual heat resources, and prevented again a large amount of precipitations of tar, thus the normal safe affecting coke oven runs.
To achieve these goals, design a kind of waste heat of coke oven crude gas power generation system, comprise the asending pipe of coal oven dithio-gas, in described asending pipe, introduce the heat absorbing end of heat pipe heat exchanger, described asending pipe outer installment has airduct, in the described airduct described in release end of heat introducing;
The cold dielectric layer of blower, air preheater, airduct, superheater, exhaust heat boiler thermal medium layer, described air preheater thermal medium layer are connected by pipeline successively with each inlet/outlet of economizer heat dielectric layer;
The cold dielectric layer of water pump, economizer, the cold dielectric layer of exhaust heat boiler, the cold dielectric layer of superheater are connected by pipeline successively with steam turbine set.
This device also has following optimized project:
Described heat pipe heat exchanger adopts overall nest plate type high-temperature heat pipe gas-gas heat exchanger.
The utility model is compared with the existing technology:
Air after the small-sized afterheat generating system of the coal oven dithio-gas that the utility model provides adopts coal oven dithio-gas heating preheating becomes high temperature air.High temperature air is first used for heating water and produces saturated vapour and superheated vapor, rear preheating cool air and softened water.Achieve the cascade utilization of waste heat of coke oven crude gas resource, the steam of generation has higher quality, thus can produce the high-quality energy-electric energy expeditiously.Air after preheating enters overall nest plate type high-temperature heat pipe gas-gas heat exchanger, ensures that the wall temperature of heat absorbing side is in higher temperature, greatly reduces the precipitation of tar.Adopt overall nest plate type high temperature heat pipe heat exchanger to guarantee that the air after raw coke oven gas and preheating is completely isolated, when high-temperature heat pipe heat absorbing side wall temperature is lower than 400 DEG C, heat pipe quits work, thus the normal safe not affecting coke oven runs.The heat absorbing end of overall nest plate type high temperature heat pipe heat exchanger is contact-type heat exchange, and its heat transfer type is radiation and convection current two kinds and deposits, and nest plate increases the heat exchange area of heat absorbing side, substantially increases the heat exchange efficiency of heat exchanger, reduces heat exchange area and takes up an area space.Set up the normal operation that air preheater not only ensures heat pipe heat exchanger, the reasonable cascade utilization avoiding a large amount of tar to separate out but also embody residual heat resources, guarantee to produce high-quality steam, ensure that this small-sized afterheat generating system generating efficiency reaches as high as 15%.
[accompanying drawing explanation]
Fig. 1 structure principle chart of the present utility model;
Fig. 2 overall nest plate type high-temperature heat pipe gas-gas heat exchanger scheme of installation;
1. blower 2. air preheater 3. airduct 4. heat exchanger 5. asending pipe 6. superheater 7. exhaust heat boiler 8. province's coal gas 9. steam turbine set and generator set 10. water pump 11. release end of heat 12. heat absorbing end in figure.
[embodiment]
Below by way of accompanying drawing and embodiment to the small-sized residual heat system of coal oven dithio-gas of the present utility model.Further describe better to understand the content of the utility model creation, but the content of embodiment does not limit the protection domain that the utility model is created.
The small-sized afterheat generating system of coal oven dithio-gas is made up of blower, overall nest plate type high-temperature heat pipe gas-gas heat exchanger, airduct, superheater, exhaust heat boiler, air preheater, economizer, steam-turbine unit, generator set, water pump.
This small-sized afterheat generating system according to air flow process is: normal temperature air is blasted air preheater 2 release end of heat by blower 1, preheating reaches 200 ~ 300 DEG C of hot airs and enters airduct 3, after overall nest plate type high-temperature heat pipe gas-gas heat exchanger 4 release end of heat 11 heat absorption, reach 400 ~ 500 DEG C.High temperature air enters after being cooled to 350 ~ 450 DEG C after entering superheater 6 after exhaust heat boiler 7 is lowered the temperature further and enters air preheater 2 endotherm section.Air is entered after finally entering economizer 8.
This small-sized afterheat generating system by carbonated drink flow process is: the softened water after deoxygenation pumps into after economizer 8 is preheated to 50 ~ 80 DEG C through water pump 10 and enters exhaust heat boiler 7.Exhaust heat boiler 7 presses saturated vapour in producing, and this saturated vapour enters superheater 6 becomes high temperature super heated steam after heat exchange.High temperature super heated steam enters steam turbine set and generator set 9 drives generator set generating through expansion work.
Overall nest plate type high-temperature heat pipe gas-gas heat exchanger 4 heat absorbing end 12 is positioned in coke oven coke oven uprising tube 5.Its release end of heat 11 is positioned over outside coke oven coke oven uprising tube 5, in airduct 3.High temperature raw coke oven gas and overall nest plate type high temperature heat pipe heat exchanger gas-gas heat exchanger 4 heat absorbing end 12 contact heat-exchanging also heat heat absorbing end 12, and heat pipe is started working and heated the air entered in airduct 3 after preheating.
Be described in detail specific embodiment of the utility model above, but it is as example, the utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that this model utility is carried out and substituting also all among category of the present utility model.Therefore, not departing from the equalization conversion and amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (2)
1. a waste heat of coke oven crude gas power generation system, comprises the asending pipe of coal oven dithio-gas, it is characterized in that the heat absorbing end introducing heat pipe heat exchanger in described asending pipe, and described asending pipe outer installment has airduct, in the airduct described in release end of heat introducing;
The cold dielectric layer of blower, air preheater, airduct, superheater, exhaust heat boiler thermal medium layer, described air preheater thermal medium layer are connected by pipeline successively with each inlet/outlet of economizer heat dielectric layer;
The cold dielectric layer of water pump, economizer, the cold dielectric layer of exhaust heat boiler, the cold dielectric layer of superheater are connected by pipeline successively with steam turbine set.
2. waste heat of coke oven crude gas power generation system as claimed in claim 1, is characterized in that described heat pipe heat exchanger adopts overall nest plate type high-temperature heat pipe gas-gas heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420482869.XU CN204283520U (en) | 2013-09-12 | 2014-08-25 | Waste heat of coke oven crude gas power generation system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104158683 | 2013-09-12 | ||
| CN2013104158683A CN103468275A (en) | 2013-09-12 | 2013-09-12 | Power generation system and method by waste heat of raw coke oven gases of coke oven |
| CN201420482869.XU CN204283520U (en) | 2013-09-12 | 2014-08-25 | Waste heat of coke oven crude gas power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283520U true CN204283520U (en) | 2015-04-22 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104158683A Pending CN103468275A (en) | 2013-09-12 | 2013-09-12 | Power generation system and method by waste heat of raw coke oven gases of coke oven |
| CN201420482869.XU Expired - Fee Related CN204283520U (en) | 2013-09-12 | 2014-08-25 | Waste heat of coke oven crude gas power generation system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104158683A Pending CN103468275A (en) | 2013-09-12 | 2013-09-12 | Power generation system and method by waste heat of raw coke oven gases of coke oven |
Country Status (1)
| Country | Link |
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| CN (2) | CN103468275A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061561A (en) * | 2014-06-20 | 2014-09-24 | 陕西龙门煤化工有限责任公司 | System for recovering waste heat of flue gas of coke oven |
| CN104810975A (en) * | 2015-05-14 | 2015-07-29 | 成都中冶节能环保工程有限公司 | Eliminating type coke oven afterheat recovery power generating system based on voltage stabilizing power supply circuit |
| CN114410871B (en) * | 2022-01-21 | 2022-12-06 | 南京华电节能环保股份有限公司 | System for double preheating of coal gas or air of blast furnace hot blast stove by using waste heat of ascending pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52123799A (en) * | 1976-04-09 | 1977-10-18 | Kajimoto Kikai Kogyo | Reversible tape feeding mechanism for packer |
| CN101614498B (en) * | 2008-06-26 | 2011-11-30 | 上海梅山钢铁股份有限公司 | Raw coke over gas riser residual heat recovery device |
| CN102329627B (en) * | 2011-09-01 | 2013-11-27 | 唐山市天元化工设备有限公司 | Coke oven crude gas waste heat recycling method |
| CN102434237B (en) * | 2011-11-29 | 2015-03-18 | 北京佰能电气技术有限公司 | Power generation system capable of jointly using sensible heat of raw gas of coke oven and waste heat of waste smoke |
| CN103047637B (en) * | 2013-01-25 | 2014-06-25 | 中冶赛迪工程技术股份有限公司 | Coke furnace flue gas waste heat and ascending pipe coal gas waste heat combined recycling system |
-
2013
- 2013-09-12 CN CN2013104158683A patent/CN103468275A/en active Pending
-
2014
- 2014-08-25 CN CN201420482869.XU patent/CN204283520U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103468275A (en) | 2013-12-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20180825 |