CN106010590A - Coke oven ascension pipe waste heat recovery device - Google Patents
Coke oven ascension pipe waste heat recovery device Download PDFInfo
- Publication number
- CN106010590A CN106010590A CN201610423016.2A CN201610423016A CN106010590A CN 106010590 A CN106010590 A CN 106010590A CN 201610423016 A CN201610423016 A CN 201610423016A CN 106010590 A CN106010590 A CN 106010590A
- Authority
- CN
- China
- Prior art keywords
- coke oven
- oven gas
- raw coke
- heat
- tube wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention belongs to the technical field of energy conservation and environmental protection, and particular relates to a coke oven ascension pipe waste heat recovery device. The device comprises multiple distributed ascension pipe raw coke oven gas heat exchanging devices, an external waste heat boiler device, a steam turbine power generation device, a heat medium pump and a water circulating pump; each ascension pipe raw coke oven gas heat exchanging device comprises an inner barrel wall and an outer barrel wall, a heat exchange pipe is installed between the inner barrel wall and the outer barrel wall, the bottom end of the heat exchange pipe is connected with a low temperature heat medium inlet, the other end of the heat exchange pipe is connected with a high temperature heat medium outlet, the interior of the inner barrel wall is provided with a raw coke oven gas heat exchange channel, one end of the raw coke oven gas heat exchange channel is provided with a raw coke oven gas inlet communicated with an external ascension pipe, and the other end of the raw coke oven gas heat exchange channel is provided with a raw coke oven gas outlet. According to the coke oven ascension pipe waste heat recovery device, a heat medium is adopted as a heat exchange medium, indirect heat exchange is conducted between the heat medium and raw coke oven gas, the heat medium and the raw coke oven gas downstream flow in the ascension pipe raw coke oven gas heat exchanging devices, medium and high pressure superheated steam can be produced to finally achieve power generation; effective recycling of heat brought out by the raw coke oven gas is smoothly achieved, and the purpose of producing high-grade energy is achieved.
Description
Technical field
The invention belongs to energy-conserving and environment-protective technical field, especially a kind of Riser waste heat recovery device for coke oven.
Background technology
According to the applicant understood, coal can be done high-temperature retorting and process by coke oven, is efficiently converted to the products such as coke, coke-stove gas, coal tar, crude benzol, is that efficient energy changes kiln.Hankering in coke oven expenditure, the heat of taking out of of 650 DEG C of-700 DEG C of raw coke oven gas accounts for 36%, has high recycling and is worth.At present, generally using cooling to process technique and realize the commercial Application of raw coke oven gas, traditional handicraft is: sprays a large amount of 70 DEG C of-75 DEG C of cyclic ammonia waters to high temperature raw coke oven gas and makes it lower the temperature, it is achieved waste heat recovery, but, this can cause high temperature raw coke oven gas to take heat out of wastes because of a large amount of evaporations of cyclic ammonia water.
In the eighties in 20th century, conduction oil was once used for tedge recovery raw coke oven gas and took heat out of by major part coke-oven plant of Japan: tedge is made jacket pipe by them, conduction oil is by jacket pipe and high temperature raw coke oven gas indirect heat exchange, heated high temperature heat conductive oil can be used for multiple use, such as ammonia still process, Doak Tar Oil, dry as-fired coal etc..Later, the test that China's Ji steel was once similar at five hole tedges；The many enterprises such as China's Wuhan Iron and Steel Plant, Ma Gang, Anshan iron and steel plant, ripples steel, Beijing coke-oven plant, Shenyang coal gas two factory, this steel one ferrum, table mountain coke-oven plant once used water vapor cooling technology to reclaim this partial heat at tedge；Additionally, Ye You enterprise uses with nitrogen as medium and the method for high temperature raw coke oven gas indirect heat exchange.But, any of the above method more or less there is problems in that the structure design of diabatic process is unreasonable, circulation is the most unobstructed, raw coke oven gas side wall surface tar bonding causes blocking raw coke oven gas passage, conduction oil coking and blocking conduction oil passage or can not effectively solving the problem of expanding with heat and contract with cold of start-stop car and running.This makes above method or is difficult to successful implementation, or is difficult to gratifying effect.
Summary of the invention
The technical problem to be solved in the present invention is: overcome deficiency of the prior art, a kind of Riser waste heat recovery device for coke oven is provided, use heating agent as heat transferring medium, can realize raw coke oven gas is taken out of the efficient recovery of heat smoothly, reach generating, the purpose of generation high-grade energy.
For solving above-mentioned technical problem, the technical solution used in the present invention is as follows:
A kind of Riser waste heat recovery device for coke oven, thermal is taken including some distributed ascending tube crude-gas, external waste heat boiler device, steam turbine generating device, heat medium pump and water circulating pump, each ascending tube crude-gas takes thermal and includes inner tube wall and outer tube wall, between described inner tube wall and outer tube wall, heat exchanger tube is installed, the bottom of described heat exchanger tube connects low temperature Heating medium, the other end connects the outlet of high temperature heating agent, described inner tube wall is internal is raw coke oven gas heat exchanger channels, one end of raw coke oven gas heat exchanger channels is the raw coke oven gas import connected with outside tedge, the other end is raw coke oven gas outlet；Described low temperature Heating medium is connected with external waste heat boiler by low temperature heating agent pipeline, and described low temperature heating agent pipeline is provided with heat medium pump, and the outlet of described high temperature heating agent is connected with external waste heat boiler by high temperature heating agent pipeline；
Soft water import and superheated steam outlet is had on described external waste heat boiler, soft water import is connected with steam turbine generating device by condensate line, superheated steam outlet is connected with steam turbine generating device by superheated steam pipeline, and described condensate line is provided with water circulating pump；
Described inner tube wall is coated with one layer of high temperature resistant black matrix anti-stick coating near the side of raw coke oven gas heat exchanger channels, and inner tube wall is coated with one layer of nano-particle thermal conducting agent near the side of heat exchanger tube.
Further, there is inner core expansion joint on the top of described inner tube wall.
Further, there is urceolus expansion joint in the stage casing of described outer tube wall.
Further, described outer tube wall has one layer of heat preservation layer near a side surface of heat exchanger tube.
Further, the lower end of described outer tube wall has the aperture of some inside and outside connections.
Technical scheme is used to provide the benefit that:
The present invention uses heating agent as heat transferring medium, and carrying out indirect heat exchange between raw coke oven gas, both are co-current flow in rising pore raw coke oven gas takes thermal, can produce middle high-pressure superheated steam and finally realize generating, if other cold flow bodies (such as air) are heated, corresponding hot fluid can be produced.Realize raw coke oven gas is taken out of the efficient recovery of heat smoothly, reach to produce the purpose of high-grade energy.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation that the ascending tube crude-gas of the present invention takes thermal；
Fig. 3 is that the ascending tube crude-gas of the present invention takes the structure enlarged diagram of I part in thermal.
In figure: 1-ascending tube crude-gas takes thermal, 2-external waste heat boiler, 3-steam turbine generating device, 4-heat medium pump, 5-water circulating pump, 6-inner tube wall, 7-outer tube wall, 8-heat exchanger tube, 9-low temperature Heating medium, 10-high temperature heating agent exports, 11-raw coke oven gas import, 12-raw coke oven gas exports, 13-low temperature heating agent pipeline, 14-condensate line, 15-superheated steam pipeline, 16-is high temperature resistant black matrix anti-stick coating, 17-nano-particle thermal conducting agent, 18-inner core expansion joint, 19-urceolus expansion joint, 20-heat-insulation layer, 21-aperture, 22-high temperature heating agent pipeline.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
Such as Fig. 1, shown in Fig. 2 and Fig. 3, a kind of Riser waste heat recovery device for coke oven, thermal 1 is taken including some distributed ascending tube crude-gas, external waste heat boiler 2, steam turbine generating device 3, heat medium pump 4 and water circulating pump 5, each ascending tube crude-gas takes thermal 1 and includes inner tube wall 6 and outer tube wall 7, heat exchanger tube 8 is installed between inner tube wall 6 and outer tube wall 7, the bottom of heat exchanger tube 8 connects low temperature Heating medium 9, the other end connects high temperature heating agent outlet 10, inner tube wall 6 is internal is raw coke oven gas heat exchanger channels, one end of raw coke oven gas heat exchanger channels is the raw coke oven gas import 11 connected with outside tedge, the other end is raw coke oven gas outlet 12；Low temperature Heating medium 11 is connected with external waste heat boiler 2 by low temperature heating agent pipeline 13, and low temperature heating agent pipeline 13 is provided with heat medium pump 4, and described high temperature heating agent outlet 10 is connected with external waste heat boiler 2 by high temperature heating agent pipeline 22；Soft water import and superheated steam outlet is had on external waste heat boiler 2, soft water import is connected with steam turbine generating device 3 by condensate line 14, superheated steam outlet is connected with steam turbine generating device 3 by superheated steam pipeline 15, and condensate line 14 is provided with water circulating pump 5.
Low temperature heating agent is distributed into absorption heat in each ascending tube crude-gas takes thermal 1 by low temperature heating agent house steward under the effect of heat medium pump 4 and becomes high temperature heating agent, high temperature heating agent after heat absorption collects entrance high temperature heating agent house steward, enter back into external waste heat boiler 2, in external waste heat boiler 2, release heat become low temperature heating agent；Cold water enters external waste heat boiler 2 under water circulating pump 5 drives, heating agent liberated heat is absorbed in external waste heat boiler 2, ultimately become superheated steam, enter turbine expansion acting heat release, drive electrical power generators, become condensed water after superheated steam acting heat release, under water circulating pump 5 acts on, again enter external waste heat boiler 2.So work, has finally reclaimed the heat of raw coke oven gas in coke oven coke oven uprising tube, has been converted to electric energy and externally exports.
Inner tube wall 6 is coated with one layer of high temperature resistant black matrix anti-stick coating 16 near the side of raw coke oven gas heat exchanger channels, and inner tube wall 6 is coated with one layer of nano-particle thermal conducting agent 17 near the side of heat exchanger tube 8；The inner wall surface of raw coke oven gas channel wall is coated with antiseized, the nanometer black matrix coating of high-absorbility, low-launch-rate, condensation and the adhesion of the tar steam therein that raw coke oven gas causes during waste heat recovery can be prevented due to cooling, radiant heat transfer to high temperature raw coke oven gas has the black body characteristics of high absorbance, and self there is the characteristic of extremely low radiation thermal discharge to external world, nanoparticle structure；The thermal conducting agent of nano-particle, has high capacity of heat transmission, the incoming heat transfer space of raw coke oven gas thermal discharge absorbed by raw coke oven gas conduit wall；
Preferably, there is inner core expansion joint 18 on the top of inner tube wall 6；Raw coke oven gas channel wall this as having high temperature resistant, anticorrosion, the metal material of high heat conduction, top has expansion joint, can expanding with heat and contract with cold in automatic absorption work process.
Preferably, there is urceolus expansion joint 19 in the stage casing of outer tube wall 7；The temperature of outer tube wall and inner tube wall is different, has expansion joint, in energy automatic absorption work process and inconsistent the expanding with heat and contract with cold of inner tube wall.
Preferably, outer tube wall 7 has one layer of heat preservation layer 20 near a side surface of heat exchanger tube 8；The most external taking thermal is outer tube wall 7, metal wall, and inner surface has heat-insulation layer 20, is the thermal-protective coating taking thermal, prevents thermal loss, and outer tube wall 7 is combined into buffer structure, makes device internal layer object to extraneous impact.
Preferably, the lower end of outer tube wall 7 has the aperture 21 of some inside and outside connections；Bottom has the technique aperture of some inside and outside connections, and the air pressure inside and outside wall can be kept consistent.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this invention technological thought.The content that the technical scope of this invention is not limited in description, it is necessary to determine its technical scope according to right.
Claims (5)
1. a Riser waste heat recovery device for coke oven, it is characterized in that: include that some distributed ascending tube crude-gas take thermal, external waste heat boiler, steam turbine generating device, heat medium pump and water circulating pump, each ascending tube crude-gas takes thermal and includes inner tube wall and outer tube wall, between described inner tube wall and outer tube wall, heat exchanger tube is installed, the bottom of described heat exchanger tube connects low temperature Heating medium, the other end connects the outlet of high temperature heating agent, described inner tube wall is internal is raw coke oven gas heat exchanger channels, one end of raw coke oven gas heat exchanger channels is the raw coke oven gas import connected with outside tedge, the other end is raw coke oven gas outlet；Described low temperature Heating medium is connected with external waste heat boiler by low temperature heating agent pipeline, and described low temperature heating agent pipeline is provided with heat medium pump, and the outlet of described high temperature heating agent is connected with external waste heat boiler by high temperature heating agent pipeline；
Soft water import and superheated steam outlet is had on described external waste heat boiler, soft water import is connected with steam turbine generating device by condensate line, superheated steam outlet is connected with steam turbine generating device by superheated steam pipeline, and described condensate line is provided with water circulating pump；
Described inner tube wall is coated with one layer of high temperature resistant black matrix anti-stick coating near raw coke oven gas heat exchanger channels side, and inner tube wall is coated with one layer of nano-particle thermal conducting agent near the side of heat exchanger tube.
Riser waste heat recovery device for coke oven the most according to claim 1, it is characterised in that: there is inner core expansion joint on the top of described inner tube wall.
Riser waste heat recovery device for coke oven the most according to claim 1, it is characterised in that: there is urceolus expansion joint in the stage casing of described outer tube wall.
Riser waste heat recovery device for coke oven the most according to claim 1, it is characterised in that: described outer tube wall has one layer of heat preservation layer near a side surface of heat exchanger tube.
Riser waste heat recovery device for coke oven the most according to claim 1, it is characterised in that: the lower end of described outer tube wall has the aperture of some inside and outside connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610423016.2A CN106010590A (en) | 2016-06-16 | 2016-06-16 | Coke oven ascension pipe waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610423016.2A CN106010590A (en) | 2016-06-16 | 2016-06-16 | Coke oven ascension pipe waste heat recovery device |
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| Publication Number | Publication Date |
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| CN106010590A true CN106010590A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610423016.2A Pending CN106010590A (en) | 2016-06-16 | 2016-06-16 | Coke oven ascension pipe waste heat recovery device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091711A (en) * | 2016-07-19 | 2016-11-09 | 南京华电节能环保设备有限公司 | A kind of multi-point gap type high-temperature flue Exposure degree generating equipment |
| CN107267163A (en) * | 2017-07-11 | 2017-10-20 | 南京华电节能环保设备有限公司 | A kind of coke oven flue waste gas afterheat recovery unit of integration desulfurization denitration |
| CN109282260A (en) * | 2018-10-30 | 2019-01-29 | 江苏中圣压力容器装备制造有限公司 | A kind of waste heat of coke oven crude gas recyclable device and system |
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| JPS60170690A (en) * | 1984-02-16 | 1985-09-04 | Nippon Steel Corp | Regulator of recovered amount of heat of device for recovering sensible heat of producer gas of coke oven |
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| 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 |
| CN103756692A (en) * | 2014-02-14 | 2014-04-30 | 南京华电节能环保设备有限公司 | Riser waste heat recovery device for coke oven |
| CN104152157A (en) * | 2014-08-25 | 2014-11-19 | 常州江南环境工程有限公司 | Coke oven rising pipe heat exchanger |
| CN104726110A (en) * | 2015-03-26 | 2015-06-24 | 常州江南冶金科技有限公司 | Coke oven three-way bridge pipeline heat exchanger device |
| CN204661602U (en) * | 2015-05-19 | 2015-09-23 | 白金 | The spiral Riser waste heat recovery device for coke oven of a kind of close muscle |
| CN205024154U (en) * | 2015-09-30 | 2016-02-10 | 上海宝钢节能环保技术有限公司 | Telescopic coke oven crude gas sensible heat recovery device of spiral coil |
-
2016
- 2016-06-16 CN CN201610423016.2A patent/CN106010590A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60170690A (en) * | 1984-02-16 | 1985-09-04 | Nippon Steel Corp | Regulator of recovered amount of heat of device for recovering sensible heat of producer gas of coke oven |
| JP2007051181A (en) * | 2005-08-16 | 2007-03-01 | Jfe R & D Corp | Method for recovering sensible heat of coke oven gas |
| CN102434237A (en) * | 2011-11-29 | 2012-05-02 | 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 |
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| CN104152157A (en) * | 2014-08-25 | 2014-11-19 | 常州江南环境工程有限公司 | Coke oven rising pipe heat exchanger |
| CN104726110A (en) * | 2015-03-26 | 2015-06-24 | 常州江南冶金科技有限公司 | Coke oven three-way bridge pipeline heat exchanger device |
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| CN205024154U (en) * | 2015-09-30 | 2016-02-10 | 上海宝钢节能环保技术有限公司 | Telescopic coke oven crude gas sensible heat recovery device of spiral coil |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091711A (en) * | 2016-07-19 | 2016-11-09 | 南京华电节能环保设备有限公司 | A kind of multi-point gap type high-temperature flue Exposure degree generating equipment |
| CN107267163A (en) * | 2017-07-11 | 2017-10-20 | 南京华电节能环保设备有限公司 | A kind of coke oven flue waste gas afterheat recovery unit of integration desulfurization denitration |
| CN107267163B (en) * | 2017-07-11 | 2023-11-03 | 南京华电节能环保股份有限公司 | Coke oven flue waste gas waste heat recovery device of integrated desulfurization denitration |
| CN109282260A (en) * | 2018-10-30 | 2019-01-29 | 江苏中圣压力容器装备制造有限公司 | A kind of waste heat of coke oven crude gas recyclable device and system |
| CN109282260B (en) * | 2018-10-30 | 2023-12-08 | 江苏中圣压力容器装备制造有限公司 | Raw coke oven gas waste heat recovery device and system |
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Application publication date: 20161012 |
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