CN108590789A - A kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique and system - Google Patents

A kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique and system Download PDF

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Publication number
CN108590789A
CN108590789A CN201810730562.XA CN201810730562A CN108590789A CN 108590789 A CN108590789 A CN 108590789A CN 201810730562 A CN201810730562 A CN 201810730562A CN 108590789 A CN108590789 A CN 108590789A
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China
Prior art keywords
boiler
heat
coke oven
dry quenching
oven gas
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Pending
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CN201810730562.XA
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Chinese (zh)
Inventor
付立欣
许桂瑛
金基浩
李桦
蒋富
何玉涛
肖丽
任众
李旭东
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Acre Coking and Refractory Engineering Consulting Corp MCC
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Acre Coking and Refractory Engineering Consulting Corp MCC
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Priority to CN201810730562.XA priority Critical patent/CN108590789A/en
Publication of CN108590789A publication Critical patent/CN108590789A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10Adaptations for driving, or combinations with, electric generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00General layout or general methods of operation of complete plants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/50Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water

Abstract

The present invention relates to a kind of coal oven dithio-gas sensible heats and red burnt sensible heat cogeneration technique and system, a set of waterworks are used to supply water simultaneously for coke dry quenching boiler and raw coke oven gas waste heat boiler, saturated vapor is generated after exchanging heat all the way with raw coke oven gas in raw coke oven gas waste heat boiler, another way generates saturated vapor in coke dry quenching boiler with after red burnt heat exchange, two-way saturated vapor enters coke dry quenching boiler after converging and overheats, and steam turbine is entered after overheat for generating electricity.The present invention breaches the technology that current coal oven dithio-gas sensible heat is individually recycled with red burnt sensible heat and limits to, the high-pressure saturated steam that raw coke oven gas waste heat boiler recycling crude-gas sensible heat generates is shown into thermogenetic high-pressure saturated steam with the red coke of coke dry quenching boiler recycling and to enter coke dry quenching boiler superheating system all the way, steam turbine power generation is driven after overheat;To achieve the purpose that improve waste heat recovery efficiency, energy saving, uninterrupted steam supply.

Description

A kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique and system
Technical field
The present invention relates to coking technology field more particularly to a kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration works Skill and system.
Background technology
950~1050 DEG C of high-temperature residual heats that heat expenditure in coke production is mainly taken out of from coke oven by red coke, 180~250 DEG C of low temperature exhaust heats and stove that 650~750 DEG C of medium temperature waste heats, the coke oven flue exhaust gas that coal oven dithio-gas is taken out of are taken out of Heat loss four part in body surface face forms.Wherein, the sensible heat that the sensible heat and red coke that coal oven dithio-gas is taken away are taken away accounts for coke oven heat expenditure 73%, this two parts heat of high efficiente callback to coking enterprise energy recycling be of great significance.
Currently, the Dry Quenching Technology of the red burnt sensible heat of recycling has been used widely, but coal oven dithio-gas bring out it is aobvious Heat is still without effective recovering means.And existing Dry Quenching Technology is generally divided into two systems with raw coke oven gas residual-heat utilization technology Independent operating can neither realize that technology complementation causes the waste of waste heat again, and serious shadow the problem of coking after raw coke oven gas heat exchange Ring enterprise safety operation.
Invention content
The present invention provides a kind of coal oven dithio-gas sensible heats and red burnt sensible heat cogeneration technique and system, breach at present The technology that coal oven dithio-gas sensible heat is individually recycled with red burnt sensible heat is limited to, and raw coke oven gas waste heat boiler is recycled crude-gas sensible heat The high-pressure saturated steam of generation is with the red burnt aobvious thermogenetic high-pressure saturated steam of coke dry quenching boiler recycling and to be put out all the way into dry Burnt boiler overheating system drives steam turbine power generation after overheat;To reach improve waste heat recovery efficiency, it is energy saving, not between The purpose of cut-off vapour.
In order to achieve the above object, the present invention is realized using following technical scheme:
A kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique, use a set of waterworks simultaneously for dry coke quenching Boiler and raw coke oven gas waste heat boiler supply water, and generate saturated vapor after exchanging heat all the way with raw coke oven gas in raw coke oven gas waste heat boiler, separately Saturated vapor is generated after exchanging heat all the way with red coke in coke dry quenching boiler, two-way saturated vapor enters coke dry quenching boiler mistake after converging Heat enters steam turbine after overheat for generating electricity.
A kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique, specifically comprise the following steps:
(1) raw coke oven gas is after hot precipitator dedusting derived from coke oven gas collecting tube, and temperature is 650 DEG C or more, into famine It exchanges heat in coal gas waste heat boiler, raw coke oven gas waste heat boiler includes raw coke oven gas waste heat boiler drum, vapor heat exchanger A and steam heat-exchanging Device B;Raw coke oven gas is introduced into one of vapor heat exchanger, and recovery of chemical products workshop section is entered after heat exchange;Using the side of on-line monitoring The raw coke oven gas inlet outlet pressure differential of formula monitoring vapor heat exchanger cuts raw coke oven gas when inlet outlet pressure differential reaches 1.5~2kPa automatically Another vapor heat exchanger is shifted to, while cutting off the connection between previous vapor heat exchanger and raw coke oven gas waste heat boiler drum;
(2) red coke becomes cold coke in coke dry quenching furnace with inert gas heat exchange derived from coke oven;
(3) condensed water from steam turbine is through condensate pump pressurized delivered to sweet-water tank, in sweet-water tank with supplement Water mixes;Through oxygen-eliminating device deoxygenation after mixed system water supply pressurization, 13~14MPa is forced by boiler feed pump, all the way into The economizer heat exchange for entering coke dry quenching boiler, in addition enters in raw coke oven gas waste heat boiler drum, all the way then respectively in dry coke quenching pot Steam/water circulating is carried out in stove and raw coke oven gas waste heat boiler;The high-pressure saturated steam pressure generated in raw coke oven gas waste heat boiler is 12 ~14MPa, temperature are 325~337 DEG C, the high-pressure saturated steam generated with coke dry quenching boiler drum and for all the way, are sequentially entered After superheater, attemperator, a secondary superheater in coke dry quenching boiler are overheated, generation pressure is 9.8MPa or more, temperature Degree is 540 DEG C or more of high pressure superheated steam, and driving steam turbine acting is by electrical power generators;
(4) 880~960 DEG C of inert gas enters coke dry quenching boiler with after red burnt countercurrent flow through disposable dust remover, according to It is secondary to be changed by secondary superheater, a superheater, light pipe evaporator, finned-tube evaporator and economizer and boiler feedwater, steam It is dusted into secondary filter after heat;Inert gas temperature after dedusting is 160~180 DEG C, is pressurizeed by circulating fan, then Enter coke dry quenching furnace after radial heat exchanger cools down to recycle.
For realizing the coal oven dithio-gas sensible heat and red burnt sensible heat combined generating system, including coke oven, high temperature of the technique Deduster, raw coke oven gas waste heat boiler, coke dry quenching furnace, coke dry quenching boiler, disposable dust remover, secondary filter, radial heat exchanger, Circulating fan, steam turbine, generator, condenser, condensate pump, sweet-water tank, deaerated feedwater pump;The tedge of the coke oven passes through Gas collecting tube connects hot precipitator entrance with raw coke oven gas conveyance conduit, and hot precipitator outlet connects in raw coke oven gas waste heat boiler The high temperature raw coke oven gas entrance of vapor heat exchanger A and vapor heat exchanger B, raw coke oven gas waste heat boiler by raw coke oven gas waste heat boiler drum, Vapor heat exchanger A and vapor heat exchanger B compositions;The high-pressure saturated steam outlet of raw coke oven gas waste heat boiler drum is saturated by high pressure Jet chimney connects the high-pressure saturated steam output channel in the coke dry quenching boiler drum downstream in coke dry quenching boiler;Coke dry quenching boiler By coke dry quenching boiler drum, water-cooling wall, a superheater, secondary superheater, light pipe evaporator, finned-tube evaporator, economizer, Attemperator forms;The high pressure superheated steam entrance of the high pressure superheated steam outlet connection steam turbine of secondary superheater, steam turbine drive Dynamic generator, the condensation water out of steam turbine connect the water inlet of sweet-water tank by condenser, condensate pump, and sweet-water tank is set Supplement water inlet;The first heat transferring medium that the water outlet of sweet-water tank pumps connection radial heat exchanger by deaerated feedwater enters Mouthful, the first heat transferring medium outlet connection sweet-water tank of radial heat exchanger;The inert gas outlet of economizer passes through secondary Second heat transferring medium entrance of deduster, circulating fan connection radial heat exchanger, the second heat exchange of radial heat exchanger Media outlet connects the inert gas entrance of coke dry quenching furnace;The high temperature inert gas outlet of coke dry quenching furnace passes through disposable dust remover and inertia Gas transmission pipeline connects the secondary superheater in coke dry quenching boiler.
Compared with prior art, the beneficial effects of the invention are as follows:
1) it breaches the technology that current coal oven dithio-gas sensible heat is individually recycled with red burnt sensible heat to limit to, more than raw coke oven gas Heat boiler recycles the high-pressure saturated steam that crude-gas sensible heat generates and is saturated with the red burnt aobvious thermogenetic high pressure of coke dry quenching boiler recycling Steam simultaneously drives steam turbine power generation to enter coke dry quenching boiler superheating system all the way, after overheat, with individual exhaust heat recovery power generation System is compared, and waste heat recovery efficiency can be improved, and creates the economic value of bigger;
2) from angle of reducing investment outlay, it is that raw coke oven gas residual neat recovering system carries that the present invention, which takes full advantage of dry coke quenching water supply system, Boiler of feeding water supply saves the construction investment of raw coke oven gas waste heat recovery water supply system;
3) from energy saving angle, compared with conventional dry quenching system steam production, high pressure superheated steam yield of the present invention is 1.2~1.4 times of conventional dry quenching system steam production;System thermal efficiency is substantially improved, and 70% or so waste heat of coke oven resource obtains It is applied widely, good in economic efficiency with high efficiente callback;
4) raw coke oven gas residual neat recovering system and dry quenching system are organically combined, utilizes the demineralized water in dry quenching system Case, boiler feed pump, deaerated feedwater pump, oxygen-eliminating device and economizer etc. supply water for raw coke oven gas residual neat recovering system;It is put out with independently dry Burnt system is compared, and water cycle efficieny is substantially improved and has saved the deaerated feedwater needed for traditional waste heat boiler recycling crude-gas sensible heat The investment of the equipment such as pump, boiler feed pump, sweet-water tank;Coke dry quenching boiler furnace structure revamping workload is small, easy to implement.
Description of the drawings
Fig. 1 is the structural schematic diagram of a kind of coal oven dithio-gas sensible heat of the present invention and red burnt sensible heat combined generating system.
In figure:1. 2. hot precipitator of coke oven, 3. sweet-water tank, 4. deaerated feedwater pumps 5. oxygen-eliminating device, 6. boiler feedwater Pump 7. tedge, 8. gas collecting tube, 9. periodical blowdown expander, 10. sewage well, 11. ash cellar, 12. raw coke oven gas waste heat boiler 121. 13. decompressors of raw coke oven gas waste heat boiler drum 122. vapor heat exchanger A, 123. steam heat-exchanging B, 14. coke dry quenching furnace 15. 151. coke dry quenching boiler drum of coke dry quenching boiler, 152. water-cooling wall No. 154. superheaters of 153. secondary superheater 155. light pipe evaporator, 156. finned-tube evaporator, 157. economizer, 158. attemperator, 16. steam turbine, 17. condenser 18. 22. generator of condensate pump 19. disposable dust remover, 20. secondary filter, 21. radial heat exchanger, 23. circulating fan
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings:
A kind of coal oven dithio-gas sensible heat of the present invention and red burnt sensible heat cogeneration technique, it is same using a set of waterworks When supply water for coke dry quenching boiler 15 and raw coke oven gas waste heat boiler 12, all the way in raw coke oven gas waste heat boiler 12 with after raw coke oven gas heat exchange Saturated vapor is generated, another way generates saturated vapor in coke dry quenching boiler 15 with after red burnt heat exchange, and two-way saturated vapor converges Enter coke dry quenching boiler 15 afterwards to overheat, steam turbine 16 is entered after overheat for generating electricity.
A kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique, specifically comprise the following steps:
(1) for raw coke oven gas derived from the gas collecting tube 8 from coke oven 1 after 2 dedusting of hot precipitator, temperature is 650 DEG C or more, into Enter and exchange heat in raw coke oven gas waste heat boiler 12, raw coke oven gas waste heat boiler 12 includes raw coke oven gas waste heat boiler drum 121, vapor heat exchanger A 122 and vapor heat exchanger B 123;Raw coke oven gas is introduced into one of vapor heat exchanger 123/123, enters after heat exchange and changes production Recycle section;The raw coke oven gas inlet outlet pressure differential that vapor heat exchanger 122/123 is monitored by the way of on-line monitoring, when inlet and outlet are pressed When difference reaches 1.5~2kPa, raw coke oven gas is automatically switched into another vapor heat exchanger 123/122, while cutting off previous steam and changing Connection between hot device 122/123 and raw coke oven gas waste heat boiler drum 121;
(2) red burnt exchange heat with inert gas in coke dry quenching furnace 14 becomes cold coke derived from coke oven;
(3) condensed water from steam turbine 16 is through 18 pressurized delivered of condensate pump to sweet-water tank 3, in sweet-water tank 3 It is mixed with supplement water;Through 5 deoxygenation of oxygen-eliminating device after mixed system water supply pressurization, 13 are forced by boiler feed pump 6~ 14MPa, the economizer 157 for entering coke dry quenching boiler 15 all the way exchange heat, and in addition enter raw coke oven gas waste heat boiler drum 121 all the way In, steam/water circulating is then carried out in coke dry quenching boiler 15 and raw coke oven gas waste heat boiler 12 respectively;In raw coke oven gas waste heat boiler 12 The high-pressure saturated steam pressure of middle generation is 12~14MPa, and temperature is 325~337 DEG C, is generated with coke dry quenching boiler drum 151 High-pressure saturated steam and for all the way, sequentially enter a superheater 154 in coke dry quenching boiler 15, attemperator 158, secondary mistake After hot device 153 is overheated, generation pressure is 9.8MPa or more, and the high pressure superheated steam that temperature is 540 DEG C or more drives steamer The acting of machine 16 is generated electricity by generator 22;
(4) 880~960 DEG C of inert gas enters coke dry quenching boiler with after red burnt countercurrent flow through disposable dust remover 19 15, pass through 153, superheaters 154 of secondary superheater, light pipe evaporator 155, finned-tube evaporator 156 and economizer successively 157 are dusted with after boiler feedwater, steam heat-exchanging into secondary filter 20;Inert gas temperature after dedusting is 160~ It 180 DEG C, is pressurizeed by circulating fan 23, then enters coke dry quenching furnace 14 after the cooling of radial heat exchanger 21 and recycle.
For realizing the coal oven dithio-gas sensible heat and red burnt sensible heat combined generating system, including coke oven 1, high temperature of the technique Deduster 2, raw coke oven gas waste heat boiler 12, coke dry quenching furnace 14, coke dry quenching boiler 15, disposable dust remover 19, secondary filter 20, radial direction Heat exchange of heat pipe 21, circulating fan 23, steam turbine 16, generator 22, condenser 17, condensate pump 18, sweet-water tank 3, deoxygenation Feed pump 4;The tedge 7 of the coke oven 1 connects 2 entrance of hot precipitator with raw coke oven gas conveyance conduit through gas collecting tube 8, and high temperature removes The high temperature raw coke oven gas of vapor heat exchanger A 122 and vapor heat exchanger B 123 in the outlet of dirt device 2 connection raw coke oven gas waste heat boiler 12 Entrance, raw coke oven gas waste heat boiler 12 is by raw coke oven gas waste heat boiler drum 121, vapor heat exchanger A 122 and vapor heat exchanger B 123 Composition;The high-pressure saturated steam outlet of raw coke oven gas waste heat boiler drum 121 connects dry coke quenching pot by high-pressure saturated steam pipeline The high-pressure saturated steam output channel in 151 downstream of coke dry quenching boiler drum in stove 15;Coke dry quenching boiler 15 is by coke dry quenching boiler Drum 151,152, superheaters 153 of water-cooling wall, secondary superheater 154, light pipe evaporator 155, finned-tube evaporator 156, Economizer 157, attemperator 158 form;The high pressure superheater of the high pressure superheated steam outlet connection steam turbine 16 of secondary superheater 154 Steam inlet, steam turbine 16 drive generator 22, the condensation water out of steam turbine 16 to be connected by condenser 17, condensate pump 18 The water inlet of sweet-water tank 3, sweet-water tank 3 set supplement water inlet;The water outlet of sweet-water tank 3 passes through 4 connection of deaerated feedwater pump First heat transferring medium entrance of radial heat exchanger 21, the first heat transferring medium outlet connection desalination of radial heat exchanger 21 Water tank 3;The inert gas outlet of economizer 157 connects radial heat exchanger 21 by secondary filter 20, circulating fan 23 The second heat transferring medium entrance, radial heat exchanger 21 the second heat transferring medium outlet connection coke dry quenching furnace 14 inert gas enter Mouthful;The high temperature inert gas of coke dry quenching furnace 14 is exported connects coke dry quenching boiler by disposable dust remover 19 with inert gas conveyance conduit Secondary superheater 153 in 15.
In the present invention, in addition connection ash cellar 11, high-pressure saturated steam conveyance conduit are defeated additionally by steam for hot precipitator 2 Branch line connection plant area steam pipe network is sent, decompressor 13 is set respectively on high-pressure saturated steam conveyance conduit and steam conveying branch line; Vapor heat exchanger A 122 in raw coke oven gas waste heat boiler 12 connected with the sewage draining exit of vapor heat exchanger B 123 after by periodically arranging Dirty expander 9 connects sewage well 10.
In the present invention, the raw coke oven gas waste heat boiler 12, dry coke quenching residual heat boiler 15 are all made of conventional structure;As this hair A kind of bright improvement need to only improve the heating surface area of a superheater 154 of coke dry quenching boiler 15, secondary superheater 153 To 1.2~1.4 times of existing equipment heating surface area, 158 adjustable range of attemperator is extended to 1.2~1.4 times of existing equipment, It can be realized as using 15 superheating system of coke dry quenching boiler being 12 saturated vapor of raw coke oven gas waste heat boiler and dry coke quenching saturated vapor It overheats simultaneously, it is minimal that 15 furnace structure of coke dry quenching boiler has been transformed.After transformation, raw coke oven gas waste heat boiler 12 can be realized not Interruption production, and when 15 stop production to overhaul of coke dry quenching boiler, still high-pressure saturated steam can be generated by raw coke oven gas waste heat boiler 12 It is used for plant area.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (3)

1. a kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique, which is characterized in that same using a set of waterworks When supply water for coke dry quenching boiler and raw coke oven gas waste heat boiler, generated after exchanging heat all the way with raw coke oven gas in raw coke oven gas waste heat boiler full And steam, another way generate saturated vapor after exchanging heat with red coke in coke dry quenching boiler, two-way saturated vapor enters dry after converging Quenching boiler overheating enters steam turbine after overheat for generating electricity.
2. a kind of coal oven dithio-gas sensible heat according to claim 1 and red burnt sensible heat cogeneration technique, which is characterized in that Specifically comprise the following steps:
(1) raw coke oven gas is after hot precipitator dedusting derived from coke oven gas collecting tube, and temperature is 650 DEG C or more, into raw coke oven gas It exchanges heat in waste heat boiler, raw coke oven gas waste heat boiler includes raw coke oven gas waste heat boiler drum, vapor heat exchanger A and vapor heat exchanger B; Raw coke oven gas is introduced into one of vapor heat exchanger, and recovery of chemical products workshop section is entered after heat exchange;It is supervised by the way of on-line monitoring The raw coke oven gas inlet outlet pressure differential for surveying vapor heat exchanger automatically switches to raw coke oven gas when inlet outlet pressure differential reaches 1.5~2kPa Another vapor heat exchanger, while cutting off the connection between previous vapor heat exchanger and raw coke oven gas waste heat boiler drum;
(2) red coke becomes cold coke in coke dry quenching furnace with inert gas heat exchange derived from coke oven;
(3) condensed water from steam turbine is mixed with supplement water in sweet-water tank through condensate pump pressurized delivered to sweet-water tank It closes;Through oxygen-eliminating device deoxygenation after mixed system water supply pressurization, 13~14MPa is forced by boiler feed pump, is entered all the way dry The economizer of quenching boiler exchanges heat, and in addition enters in raw coke oven gas waste heat boiler drum all the way, then respectively in coke dry quenching boiler and Steam/water circulating is carried out in raw coke oven gas waste heat boiler;The high-pressure saturated steam pressure generated in raw coke oven gas waste heat boiler be 12~ 14MPa, temperature are 325~337 DEG C, the high-pressure saturated steam generated with coke dry quenching boiler drum and for all the way, are sequentially entered dry After superheater, attemperator, a secondary superheater in quenching boiler are overheated, generation pressure is 9.8MPa or more, temperature For 540 DEG C or more of high pressure superheated steam, driving steam turbine does work by electrical power generators;
(4) 880~960 DEG C of inert gas enters coke dry quenching boiler through disposable dust remover, passes through successively with after red burnt countercurrent flow After crossing secondary superheater, a superheater, light pipe evaporator, finned-tube evaporator and economizer and boiler feedwater, steam heat-exchanging It is dusted into secondary filter;Inert gas temperature after dedusting is 160~180 DEG C, is pressurizeed by circulating fan, then through diameter Enter coke dry quenching furnace after cooling down to heat exchange of heat pipe to recycle.
3. for realizing the coal oven dithio-gas sensible heat and red burnt sensible heat combined generating system, feature of technique described in claim 1 It is, including coke oven, hot precipitator, raw coke oven gas waste heat boiler, coke dry quenching furnace, coke dry quenching boiler, disposable dust remover, final dusting Device, radial heat exchanger, circulating fan, steam turbine, generator, condenser, condensate pump, sweet-water tank, deaerated feedwater pump; The tedge of the coke oven connects hot precipitator entrance, hot precipitator outlet connection with raw coke oven gas conveyance conduit through gas collecting tube The high temperature raw coke oven gas entrance of vapor heat exchanger A and vapor heat exchanger B in raw coke oven gas waste heat boiler, raw coke oven gas waste heat boiler is by famine Coal gas waste heat boiler drum, vapor heat exchanger A and vapor heat exchanger B compositions;The high pressure saturation of raw coke oven gas waste heat boiler drum is steamed Vapor outlet connects the high-pressure saturated steam in the coke dry quenching boiler drum downstream in coke dry quenching boiler by high-pressure saturated steam pipeline Output channel;Coke dry quenching boiler by coke dry quenching boiler drum, water-cooling wall, a superheater, secondary superheater, light pipe evaporator, Finned-tube evaporator, economizer, attemperator composition;The height of the high pressure superheated steam outlet connection steam turbine of secondary superheater presses through The condensation water out of hot steam entrance, Steam Turbine Driven generator, steam turbine connects sweet-water tank by condenser, condensate pump Water inlet, sweet-water tank sets supplement water inlet;The water outlet of sweet-water tank pumps connection radial heat pipe heat exchange by deaerated feedwater First heat transferring medium entrance of device, the first heat transferring medium outlet connection sweet-water tank of radial heat exchanger;Economizer it is lazy Property gas vent passes through secondary filter, circulating fan connects the second heat transferring medium entrance of radial heat exchanger, radial heat The inert gas entrance of the second heat transferring medium outlet connection coke dry quenching furnace of heat exchange of heat pipe;The high temperature inert gas outlet of coke dry quenching furnace is logical It crosses disposable dust remover and connects secondary superheater in coke dry quenching boiler with inert gas conveyance conduit.
CN201810730562.XA 2018-07-05 2018-07-05 A kind of coal oven dithio-gas sensible heat and red burnt sensible heat cogeneration technique and system Pending CN108590789A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323226A (en) * 2018-10-19 2019-02-12 上海宝钢节能环保技术有限公司 The more energy coupling optimizations in coke oven region and distributed energy resource system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323226A (en) * 2018-10-19 2019-02-12 上海宝钢节能环保技术有限公司 The more energy coupling optimizations in coke oven region and distributed energy resource system

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