CN202808703U - Single novel bridge tube waste gas waste heat recovery device for coke oven - Google Patents
Single novel bridge tube waste gas waste heat recovery device for coke oven Download PDFInfo
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- CN202808703U CN202808703U CN2012204406025U CN201220440602U CN202808703U CN 202808703 U CN202808703 U CN 202808703U CN 2012204406025 U CN2012204406025 U CN 2012204406025U CN 201220440602 U CN201220440602 U CN 201220440602U CN 202808703 U CN202808703 U CN 202808703U
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- bridge tube
- raw gas
- downcomer
- heat recovery
- coke oven
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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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Abstract
The utility model relates to a single novel bridge tube waste gas waste heat recovery device for a coke oven, which comprises a bridge tube ascent section and a bridge tube descent section, wherein a bridge tube transition section is arranged between the bridge tube ascent section and the bridge tube descent section; an evaporator is arranged in the bridge tube descent section and is connected with a steam pocket by a pipeline; a multi-layer evaporator capable of enlarging the heating surface is adopted as the evaporator; a superheater is arranged in the bridge tube transition section; and a waste gas channel of the bridge tube descent section is divided into a plurality of independent channels by the evaporator, and waste gas can circulate in the independent channels. The single novel bridge tube waste gas waste heat recovery device not only enlarges the heating surface and improves the waste gas waste heat recovery rate of the coke oven, but also enables a bridge tube to be designed in a deforming way and does not influence the surrounding technology by adopting modular design; and the single novel bridge tube waste gas waste heat recovery device is simple in structural design, easy to maintain and convenient to clean, and is capable of effectively recovering the waste gas waste heat.
Description
Technical field
The utility model relates to industrial afterheat recovery utilization and technical field, the single novel bridge tube raw gas waste-heat recovery device of a kind of waste heat of coke oven crude gas retrieving arrangement, particularly a kind of coke oven.
Background technology
Coking industry receives much concern as the high energy consumption industry.In the coking by coke oven process, raw gas temperature in the coke oven coke oven uprising tube is up to 750 ℃, contain a large amount of sensible heats, be convenient to follow-up coking process processing for reducing the coal oven dithio-gas temperature, traditional technology adopts the technique cooling down high-temperature raw gas of spray ammoniacal liquor chilling, directly contacts with raw gas with effuser spray cycle ammoniacal liquor by bridge tube, gasifies in a large number by cyclic ammonia water, make the raw gas reduces heat to 80-85 ℃, raw gas is cooled to normal temperature with water coolant more indirectly after the cooling in primary cooler.The sensible heat of a large amount of raw gas has not only been wasted in this technical process, and consumes a large amount of ammoniacal liquor, wasted a large amount of water resourcess and electric power again, increases sewage discharge.About 750 ℃ the raw gas that coke oven is discharged is because its complicated component, and separating out of the component such as tar arranged along with the reduction of temperature, do not have so far good scheme that it is reclaimed.Therefore coal oven dithio-gas sensible heat recovery research is one of focus of coking industry energy-saving and emission-reduction always.
At present waste heat of coke oven crude gas recovery mainly contains two kinds of patterns and is studying: the one, adopt the upcast device with function of recovering waste heat, but because its space structure is narrow and small, vaporizer is arranged and is affected, and can't fully reclaim the raw gas residual heat resources, causes being difficult to promoting; The 2nd, employing is concentrated raw gas and is drawn, and concentrated residual neat recovering system is set in addition.This kind structural pattern is owing to its system complex, the combustibility of raw gas, tar are separated out the factors such as coking, and the resistance to air loss of system etc. require very high, and system safety operation is subject to very large challenge.
The utility model content
In order to address the above problem, the utility model provides a kind of coke oven single novel bridge tube raw gas waste-heat recovery device, comprise bridge tube ascent stage and bridge tube downcomer, be provided with the bridge tube transition section between described bridge tube ascent stage and the bridge tube downcomer, be provided with vaporizer in the described bridge tube downcomer, described vaporizer adopts the Multilayer evaporator that increases heating surface, be provided with superheater in the described bridge tube transition section, bridge tube downcomer raw gas passage is divided into some raw gas autonomous channels for the circulation raw gas by described Multilayer evaporator;
Raw gas forms the raw gas circulation passage through the raw gas autonomous channel of bridge tube ascent stage, bridge tube transition section, bridge tube downcomer;
Water forms the steam circulation passage through bridge tube downcomer vaporizer, superheater.
Described Multilayer evaporator comprises the interchanger of upper header, lower collecting box and some vertical settings, those interchanger are located at respectively between upper header and the lower collecting box, and communicate with both respectively, described lower collecting box is connected with water inlet pipe, interchanger and tube wall noncontact, and interchanger is independent of one another, and interchanger each other and/or be provided for respectively the circulating raw gas autonomous channel of raw gas, between interchanger and the bridge tube wall and/or internal layer interchanger center.
Described those interchanger are annular one of them that arranges, be arranged in parallel.
The bridge tube of bridge tube downcomer is provided with successively from outside to inside downcomer steel pipe external insulation layer, downcomer steel pipe, is used for the convenient downcomer steel pipe inner wall ceramic coating that cleans tar.
The top of upper header is provided with spray ammonia point.
The single novel bridge tube raw gas waste-heat recovery device of a kind of coke oven, comprise bridge tube ascent stage and bridge tube downcomer, be provided with the bridge tube transition section between described bridge tube ascent stage and the bridge tube downcomer, be provided with vaporizer in the described bridge tube downcomer, described vaporizer adopts the Multilayer evaporator that increases heating surface, be provided with superheater in the described bridge tube transition section, vaporizer comprises the many pipelines that are set up in parallel, the raw gas autonomous channel of the raw gas that is formed between noncontact and the tube and tube between the described pipeline circulating;
Raw gas forms the raw gas circulation passage through the raw gas autonomous channel of bridge tube ascent stage, bridge tube transition section, bridge tube downcomer;
Water forms the steam circulation passage through bridge tube downcomer vaporizer, drum, superheater.
The utility model purpose is keeping coke oven coke oven uprising tube, under the constant prerequisite of effuser and main technique, the bridge tube that coke oven is connected upcast and effuser carries out deformation design, bridge tube is transformed into the bridge tube ascent stage, bridge tube transition section and bridge tube downcomer, take full advantage of the upper space of coke oven, the design of conjugative bridge tubular construction increases the Multi-layer exchanging heat device in the downcomer of bridge tube, increase the raw gas waste-heat recovery device, with abundant recovery raw gas waste heat, inwall in the bridge tube downcomer is provided with ceramic coating, and interchanger is arranged on the downcomer of bridge tube, the tar that can effectively solve in the waste heat recovery process is separated out problem.Simultaneously, also can reduce the consumption of original system ammoniacal liquor and subsystem power consumption, realize the coke oven energy-saving and emission-reduction.
The utility model has the advantage of:
1. at the bridge tube place waste-heat recovery device is set, takes full advantage of the space on coke oven top;
2. set up main heating surface in downcomer, the cleaning after being convenient to tar and separating out;
3. adopt single novel bridge tube raw gas waste-heat recovery device independent design, be convenient to renewal and the maintenance of equipment, reducing as far as possible affects the coke oven original system
4. adopt the design of Multi-layer exchanging heat device, between downcomer tube wall and the outer heating surface, between the two-layer interchanger, internal layer heating surface inside all forms the raw gas passage, is convenient to abundant heat exchange;
5. the bridge tube inwall adopts Ceramic Art Design, reduces the adhesion of separating out tar;
6. the ammoniacal liquor spray point is set, separates out degree in conjunction with tar and take appropriate frequency to clean.
The utility model brings following beneficial effect:
1. at the bridge tube place space that waste-heat recovery device not only takes full advantage of coke oven top is set, and suitably increases heating surface with abundant as far as possible recovery waste heat in conjunction with upper space;
2. the cleaning after main heating surface is arranged in the bridge tube downcomer and is convenient to tar and separates out, avoid or slow down because of raw gas temperature reduce after tar separate out and cause the heating surface exchange capability of heat to descend even lost efficacy;
3. single novel bridge tube raw gas waste-heat recovery device independent design is convenient to renewal and the maintenance of equipment, and reducing as far as possible affects the coke oven original system;
4. because raw gas temperature descends, to the ammoniacal liquor slump in demand, reduce simultaneously the power consumption of ammoniacal liquor subsystem;
5. can obviously reduce the coke oven process energy consumption by recovery waste heat, save energy reduces discharging, produces good economic and social benefit.
The utility model has not only increased heating surface, improves the waste heat of coke oven crude gas rate of recovery; And by adopting modular design, except bridge tube has been carried out deformation design, peripheral technique is all unaffected, structure design simply, safeguard easily, be convenient to clean, can efficient recovery raw gas waste heat.
Description of drawings
Fig. 1 is the single novel bridge tube raw gas waste-heat recovery device structure design synoptic diagram of the utility model coke oven;
Fig. 2 is the single novel bridge tube raw gas waste-heat recovery device A-A diagrammatic cross-section of the utility model coke oven;
Fig. 3 is the utility model bridge tube downcomer local structure synoptic diagram;
Fig. 4 is another synoptic diagram of the utility model interchanger.
Embodiment
Further specify with reference to the accompanying drawings the utility model.
The single novel bridge tube raw gas waste-heat recovery device of a kind of coke oven, comprise bridge tube ascent stage 2 and bridge tube downcomer 4, be provided with bridge tube transition section 3 between described bridge tube ascent stage 2 and the bridge tube downcomer 4, the two ends of described bridge tube downcomer 4 are respectively equipped with upper header 5 and lower collecting box 6, vertically can be provided with some interchanger 7 between described upper header 5 and the lower collecting box 6, described lower collecting box 6 is connected with water inlet pipe 61, upper header 5 is connected with drum 8 by pipeline 51, be provided with superheater 9 in the described bridge tube transition section 3, superheater entrance 91 is connected with drum 8, and superheater outlet 92 connects user side.
From the crosscut section, described bridge tube downcomer 4 is provided with downcomer steel pipe external insulation layer 41, downcomer steel pipe 42, downcomer steel pipe inner wall ceramic coating 43 from outside to inside successively.
The top of described upper header is provided with spray ammonia point 52.
Consult accompanying drawing 3, the interchanger 7 of present embodiment is that double-deck annular arranges, interchanger 7 is respectively equipped with internal layer interchanger 71 and outer interchanger 72, internal layer interchanger 71 and outer interchanger 72 are communicated with upper header 5 and lower collecting box 6 respectively, internal layer interchanger 71 and outer interchanger 72 are located at the middle part of bridge tube downcomer 4, do not contact with tube wall, therefore, form three annular raw gas autonomous channels 44 between tube wall, internal layer interchanger 71 and outer interchanger 72 threes.
De-mineralized water enters lower collecting box by water inlet pipe 61, rise in the upper header 5 from internal layer interchanger 71 and outer interchanger 72 respectively from lower collecting box 6, de-mineralized water enters the process of upper header 5 from lower collecting box 6, because in vaporizer is provided with, outer two-layer interchanger, form three annular raw gas autonomous channels 44 between internal layer interchanger 71 and outer interchanger 72 and the tube wall, raw gas passes through from three annular raw gas autonomous channels 44, de-mineralized water fills a part heat exchange with raw gas in the bridge tube downcomer, form steam water interface after the de-mineralized water heat exchange, steam water interface enters drum 8 by pipeline 51, steam water interface carries out carbonated drink separation in drum 8, saturation steam after the separation enters in the superheater 9 from superheater entrance 91, because the raw gas temperature in the bridge tube transition section 3 is higher, saturation steam in high temperature raw gas and the superheater 9 carries out heat exchange again, become high-quality superheated vapour after the saturation steam heat exchange, superheated vapour is passed to user side from superheater outlet 92, de-mineralized water is by twice heat exchange of bridge tube downcomer and bridge tube transition section, and, vaporizer is provided with internal layer interchanger and outer interchanger, raw gas and internal layer interchanger and the abundant heat exchange of outer interchanger in the bridge tube downcomer, the absorption of filling part the heat of raw gas, and raw gas enters the bridge tube ascent stage 2 from upcast 1, carry out heat exchange with saturation steam and de-mineralized water respectively during then by bridge tube transition section 3 and bridge tube downcomer 4, the temperature of raw gas also progressively reduces, raw gas after the cooling enters effuser from bridge tube raw gas outlet 11, the raw gas waste heat is absorbed and used, the top of the upper header 5 spray ammonia point 52 that also distributing, be convenient to clean the tar on tube wall and the interchanger, the tar after the cleaning flows into effuser and carries out conventional processing.
Consult accompanying drawing 4, the interchanger 7 of present embodiment is the many pipelines that are set up in parallel, the 4 row superheater tubes 73 of interchanger 7 for be arrangeding in parallel, superheater tube 73 is communicated with lower collecting box 6 with upper header 5 respectively and does not contact with tube wall, therefore, every adjacent two row's superheater tubes 73, just formed raw gas passage 45 between between superheater tube 73 and the tube wall, after raw gas enters bridge tube downcomer 4 from bridge tube transition section 3, raw gas enters bridge tube raw gas outlet 11 from raw gas passage 45, the de-mineralized water of raw gas in raw gas passage 45 and in the superheater tube 73 fills a part heat exchange, other steps and embodiment 1 identical just no longer narration.
Above-mentioned disclosed only be specific embodiment of the utility model, this embodiment only is that clearer explanation the utility model is used, and is not to restriction of the present utility model, the changes that any person skilled in the art can think of all should drop in the protection domain.
Claims (8)
1. single novel bridge tube raw gas waste-heat recovery device of coke oven, it is characterized in that, comprise bridge tube ascent stage and bridge tube downcomer, be provided with the bridge tube transition section between described bridge tube ascent stage and the bridge tube downcomer, be provided with vaporizer in the described bridge tube downcomer, described vaporizer adopts the Multilayer evaporator that increases heating surface, and described bridge tube downcomer raw gas passage is divided into some raw gas autonomous channels for the circulation raw gas by described Multilayer evaporator.
2. the single novel bridge tube raw gas waste-heat recovery device of coke oven as claimed in claim 1 is characterized in that, is provided with superheater in the described bridge tube transition section.
3. the single novel bridge tube raw gas waste-heat recovery device of coke oven as claimed in claim 1, it is characterized in that, described Multilayer evaporator comprises the interchanger of upper header, lower collecting box and some vertical settings, those interchanger are located at respectively between upper header and the lower collecting box, and communicate with both respectively, described lower collecting box is connected with water inlet pipe, interchanger and tube wall noncontact, and interchanger is independent of one another, and interchanger each other and/or be provided for respectively the circulating raw gas autonomous channel of raw gas, between interchanger and the bridge tube wall and/or internal layer interchanger center.
4. the single novel bridge tube raw gas waste-heat recovery device of coke oven as claimed in claim 3 is characterized in that, described those interchanger are annular one of them that arranges, be arranged in parallel.
5. the single novel bridge tube raw gas waste-heat recovery device of coke oven as claimed in claim 3, it is characterized in that the bridge tube of bridge tube downcomer is provided with successively from outside to inside downcomer steel pipe external insulation layer, downcomer steel pipe, is used for the convenient downcomer steel pipe inner wall ceramic coating that cleans tar.
6. the single novel bridge tube raw gas waste-heat recovery device of coke oven as claimed in claim 1 is characterized in that, the top of upper header is provided with spray ammonia point.
7. the single novel bridge tube raw gas waste-heat recovery device of coke oven as claimed in claim 1 is characterized in that also comprise drum, described drum links to each other with described superheater, and described vaporizer is connected with described drum by pipeline.
8. single novel bridge tube raw gas waste-heat recovery device of coke oven, it is characterized in that, comprise bridge tube ascent stage and bridge tube downcomer, be provided with the bridge tube transition section between described bridge tube ascent stage and the bridge tube downcomer, be provided with vaporizer in the described bridge tube downcomer, described vaporizer adopts the Multilayer evaporator that increases heating surface, be provided with superheater in the described bridge tube transition section, vaporizer comprises the many pipelines that are set up in parallel, the raw gas autonomous channel of the raw gas that is formed between noncontact and the tube and tube between the described pipeline circulating;
Raw gas forms the raw gas circulation passage through the raw gas autonomous channel of bridge tube ascent stage, bridge tube transition section, bridge tube downcomer;
Water forms the steam circulation passage through bridge tube downcomer vaporizer, superheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204406025U CN202808703U (en) | 2012-08-31 | 2012-08-31 | Single novel bridge tube waste gas waste heat recovery device for coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204406025U CN202808703U (en) | 2012-08-31 | 2012-08-31 | Single novel bridge tube waste gas waste heat recovery device for coke oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808703U true CN202808703U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204406025U Expired - Fee Related CN202808703U (en) | 2012-08-31 | 2012-08-31 | Single novel bridge tube waste gas waste heat recovery device for coke oven |
Country Status (1)
| Country | Link |
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| CN (1) | CN202808703U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816573A (en) * | 2012-08-31 | 2012-12-12 | 上海宝钢节能技术有限公司 | Coke-oven single novel bridge pipe raw gas waste-heat recovery device |
| CN107014225A (en) * | 2017-03-28 | 2017-08-04 | 江阴德尔热能机械有限公司 | A kind of annular multi-airway formula tedge absorbing and cooling temperature device |
-
2012
- 2012-08-31 CN CN2012204406025U patent/CN202808703U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816573A (en) * | 2012-08-31 | 2012-12-12 | 上海宝钢节能技术有限公司 | Coke-oven single novel bridge pipe raw gas waste-heat recovery device |
| CN102816573B (en) * | 2012-08-31 | 2014-04-30 | 上海宝钢节能环保技术有限公司 | Coke-oven single novel bridge pipe raw gas waste-heat recovery device |
| CN107014225A (en) * | 2017-03-28 | 2017-08-04 | 江阴德尔热能机械有限公司 | A kind of annular multi-airway formula tedge absorbing and cooling temperature device |
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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 | ||
| 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-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 201999, room 1813, No. 3245, Mudanjiang Road, Baoshan District, Shanghai, Baoshan District Patentee before: Shanghai Baosteel Energy Tech Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |