CN202881181U - Crude gas waste heat recovery system used for coke oven ascension pipe - Google Patents
Crude gas waste heat recovery system used for coke oven ascension pipe Download PDFInfo
- Publication number
- CN202881181U CN202881181U CN2012206013887U CN201220601388U CN202881181U CN 202881181 U CN202881181 U CN 202881181U CN 2012206013887 U CN2012206013887 U CN 2012206013887U CN 201220601388 U CN201220601388 U CN 201220601388U CN 202881181 U CN202881181 U CN 202881181U
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- China
- Prior art keywords
- coke oven
- gas
- waste heat
- interchanger
- heat exchanger
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- Expired - Fee Related
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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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a crude gas waste heat recovery system used for a coke oven ascension pipe. The waste heat recovery system comprises an ascension pipe heat exchanger, a main gas collecting tube and a water/gas heat exchanger. An air inlet of the ascension pipe heat exchanger is connected with a working medium gas outlet of the coke oven. A hot gas outlet of the ascension pipe heat exchanger is connected with the main gas collecting tube. The main gas collecting tube is connected with the water/gas heat exchanger and is used for generating steam or hot water. On the premise of guaranteeing the safe operation of the coke oven and having no influence on the other technological requirements of the crude gas, more than 50% of waste heat quantity of the crude gas can be effectively recovered by the ascension pipe heat exchanger, and the dosage of ammonia water used for temperature cooling of the crude gas is reduced, and at the same time, toxic and harmful waste water generated in a purification technology process of the crude gas is also reduced.
Description
Technical field
The utility model relates to a kind of for coke oven coke oven uprising tube raw gas residual neat recovering system, and especially a kind of employing nitrogen or (air) are as the coke oven coke oven uprising tube raw gas waste heat recycling system of heat-eliminating medium.
Background technology
The high efficiente callback utilization of the residual heat resources that produce in the coke making process flow process is to set up resources conservation, the energy-conservation main direction in eco-friendly green coke-oven plant, also is one of main path that reduces the coke oven energy consumption.650 ℃～700 ℃ raw gas of wherein, overflowing through upcast from coking chamber are taken heat out of and are accounted for 36% of coke oven output total heat.For the raw gas of cooling down high-temperature must spray a large amount of 70 ℃～75 ℃ cyclic ammonia waters, the high temperature raw gas is cooled to 22 ℃～35 ℃ through primary cooler again because a large amount of evaporations of cyclic ammonia water are cooled to 82 ℃～85 ℃, and raw gas is taken heat out of and is wasted.The at present waste heat recovery of raw gas also is in development, takes heat out of as reclaiming raw gas with technology such as thermal oil jacket pipe, heat pipe, boiler, semiconductor temperature differential generating and jacket pipes.But some method and mode also do not reach industrial production and use.
Summary of the invention
The utility model is the technical problem that will solve the waste heat recovery of the raw gas that existing carbonizing chamber of coke oven overflows by upcast, and provide a kind of coke oven coke oven uprising tube raw gas waste heat recycling system, this system is guaranteeing the coke oven safe operation and is not affecting under the prerequisite of other processing requirements of raw gas, utilize the waste heat amount more than 50% of upcast interchanger energy efficient recovery raw gas, and reduced the ammonia volume that is used for the raw gas desuperheat, also reduced the poisonous and harmful waste water that produces in the raw gas purification process flow process simultaneously.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of for coke oven coke oven uprising tube raw gas waste heat recycling system, formed by upcast interchanger, main effuser, water/vapour interchanger, be characterized in: upcast interchanger inlet mouth connects the Working medium gas outlet of coke oven, the hot gas outlet of upcast interchanger connects main effuser, main effuser connects water/vapour interchanger, for generation of steam or hot water.
Slumpability gas in the return flow line of upcast interchanger.
The inwall bottom of upcast interchanger arranges a tar delivery line, is used for preventing from being back to coke oven coke oven uprising tube bottom and coke oven junction from the tar that raw gas is separated out, and forms graphite so that coke-oven gas is analysed the exit coking.
The beneficial effects of the utility model are:
The utility model is compared with the coke oven coke oven uprising tube raw gas waste heat recycling system (device) of other form, be fit to the heat recovery of coking process raw gas, and safety in operation is high.The scantlings of the structure of upcast interchanger can be identical with original upcast contour structure size, is convenient to repair and replacement; And it is more reasonable that its heating surface area is arranged, in farthest utilizing, the raw gas high temperature section establishes the upcast interchanger heating surface of multiply spiral return flow line, improve the heat transfer effect between raw gas and air or (nitrogen), air or (nitrogen) can obtain the heat of raw gas effectively, can can control by changing air or (nitrogen) flow simultaneously the temperature out of raw gas, avoided raw gas under the state of reduces heat, coal-tar middle oil the separating out of raw gas caused the coking of upcast tube wall, affects the coke oven safe operation.Adopt gas as the medium of heat exchanger, can guarantee the safe operation of coke oven in the state of accident, if adopt nitrogen also to can be used as the additional flue gas of dry coke quenching residual heat boiler as heat-transfer medium, can improve the operational efficiency of dry coke quenching residual heat boiler and exert oneself.
Description of drawings
Fig. 1 is structure principle chart of the present utility model;
Fig. 2 is upcast heat exchanger structure front view;
Fig. 3 is along the sectional view of A-A among Fig. 2;
Fig. 4 is along the sectional view of B-B among Fig. 2.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, of the present utility model for coke oven coke oven uprising tube raw gas waste heat recycling system, comprise upcast interchanger 1, main effuser 2, water/vapour interchanger 3 etc.
Upcast interchanger 1 inlet mouth connects the Working medium gas outlet of coke oven, and the hot gas outlet of upcast interchanger 1 connects main effuser 2, and main effuser 2 connects water/vapour interchanger 3, for generation of steam or hot water.
Such as Fig. 2, shown in 3,4, upcast interchanger 1 is made of inside and outside sleeve pipe 5,4, establishes multiply spiral return flow line 6 between the inside and outside sleeve pipe 5,4, and the header of confluxing is respectively established at inside and outside sleeve pipe 5,4 two ends.Slumpability gas in the multiply spiral return flow line 6 of the inside and outside sleeve pipe of upcast interchanger.The inner sleeve 5 inwalls bottom of upcast interchanger arranges a tar delivery line 7, is used for preventing from being back to coke oven coke oven uprising tube bottom and coke oven junction from the tar that raw gas is separated out, and forms graphite so that coke-oven gas is analysed the exit coking.
The utility model utilizes raw gas in the coke oven by the upcast interchanger of oven top of coke oven, the heat transferred of raw gas is established fluidizing air or rare gas element (nitrogen) in the multiply spiral return flow line in the upcast heat exchange jackets, the air after being heated (nitrogen) confluxes by the top of upcast interchanger and flow into main effuser after the header.Main effuser pools together the warm air (or nitrogen) that a plurality of upcast interchanger of coke oven produce, and produces little overheated saturation water or superheated vapour by fin pipe type water/vapour interchanger, and for the production of technique or life, perhaps superheated vapour is used for generating.
Claims (3)
1. one kind is used for coke oven coke oven uprising tube raw gas waste heat recycling system, formed by upcast interchanger (1), main effuser (2), water/vapour interchanger (3), it is characterized in that: described upcast interchanger (1) inlet mouth connects the Working medium gas outlet of coke oven, the hot gas outlet of upcast interchanger (1) connects main effuser (2), main effuser (2) connects water/vapour interchanger (3), for generation of steam or hot water.
2. according to claim 1ly it is characterized in that slumpability gas in the return flow line (6) of described upcast interchanger (1) for coke oven coke oven uprising tube raw gas waste heat recycling system.
3. according to claim 1 for coke oven coke oven uprising tube raw gas waste heat recycling system, it is characterized in that, described upcast interchanger (1) inwall bottom arranges a tar delivery line (7), be used for preventing from being back to coke oven coke oven uprising tube bottom and coke oven junction from the tar that raw gas is separated out, form graphite so that coke-oven gas is analysed the exit coking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206013887U CN202881181U (en) | 2012-11-15 | 2012-11-15 | Crude gas waste heat recovery system used for coke oven ascension pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206013887U CN202881181U (en) | 2012-11-15 | 2012-11-15 | Crude gas waste heat recovery system used for coke oven ascension pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202881181U true CN202881181U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206013887U Expired - Fee Related CN202881181U (en) | 2012-11-15 | 2012-11-15 | Crude gas waste heat recovery system used for coke oven ascension pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN202881181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925165A (en) * | 2012-11-15 | 2013-02-13 | 上海理工大学 | Afterheat recovery system for raw coke oven gas of coke oven ascension pipe |
| CN111849564A (en) * | 2019-04-25 | 2020-10-30 | 北京凯德恒源科技发展有限公司 | Deep recovery method of coke oven crude gas heat energy |
-
2012
- 2012-11-15 CN CN2012206013887U patent/CN202881181U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925165A (en) * | 2012-11-15 | 2013-02-13 | 上海理工大学 | Afterheat recovery system for raw coke oven gas of coke oven ascension pipe |
| CN111849564A (en) * | 2019-04-25 | 2020-10-30 | 北京凯德恒源科技发展有限公司 | Deep recovery method of coke oven crude gas heat energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20131115 |