CN1971190A - Power generation device by using residual heat and exhaust gas from converter - Google Patents

Power generation device by using residual heat and exhaust gas from converter Download PDF

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Publication number
CN1971190A
CN1971190A CNA200610048232XA CN200610048232A CN1971190A CN 1971190 A CN1971190 A CN 1971190A CN A200610048232X A CNA200610048232X A CN A200610048232XA CN 200610048232 A CN200610048232 A CN 200610048232A CN 1971190 A CN1971190 A CN 1971190A
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steam
unit
stop valve
gas
water
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CNA200610048232XA
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CN100543275C (en
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王更庆
郭玉生
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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Abstract

The invention relates to a power plant of steelmaking converter by waste gas with residual heat, comprising evaporated flue, steam drum, feedwater pump, deaerator, heat accumulator, steam collecting box, steam-water separator unit, water making station, dirty remover, gas collecting cabinet, gas pressurization station, overheat steam boiler unit, combustor, hot water unit, air preheater unit, fan unit, air flow meter, steam turbine, generator, return water machine, return water pump, draught flow units with variable frequency, discharge flue and some stop valve. Its characteristic is that saturated steam is heated to generate electricity. The merit is improving the usage ratio of residual heat. Compared with generating electricity, generating electricity by saturated steam can improve generating electricity amount by 144%. The fuel for reheating is scattered converter gas and the usage ratio of generating electricity by gas can achieve 46%. It improves by more than 90% compared with the 25% of the efficiency of gas boiler-turbine generator unit.

Description

Power generation device by using residual heat and exhaust gas from converter
One, technical field:
The present invention relates to a kind of TRT, particularly a kind of power generation device by using residual heat and exhaust gas from converter.
Two, background technology:
At present, the mode of steelmaking converter waste-heat recovery device utilization has following several: 1, the steam of Hui Shouliyonging is incorporated the low-pressure steam pipe network of enterprise into; 2, recovered steam is used for warming; 3, recovered steam is used for enterprise's production usefulness gas and gas for domestic use.These several modes are extremely low to converter waste-heat recovery device utilization rate, major part is all as emptying process, like this, not only make the water-white whitecap expense that reclaims heat and chemically treated high cost in the high-temperature flue gas, and the purpose of installing waste-heat recovery device is to reclaim the heat of high-temperature flue gas, also waste thereupon of these heats as a result.This is the deficiency of existing converter waste-heat recovery device.
Three, summary of the invention:
The objective of the invention is to design a kind of power generation device by using residual heat and exhaust gas from converter, utilize a kind of reheater that it further is heated into high-octane superheated steam and then generating saturated vapor, in order to utilization rate and its generating efficiency of raising that improves waste heat waste gas.Purpose of the present invention can realize by following embodiment: this device include evaporated flue, drum, feed pump, oxygen-eliminating device, storage heater, steam manifold, steam-water separator unit, water making station, dirt separator, coal gas gas collection gas holder,, coal gas pressurizing point, overhead steam boiler unit, burner, hot water unit, air preheater unit, blower fan unit, mass air flow sensor, steam turbine, generator, steam condenser, rehydration pump, frequency conversion air inducing unit and smokejack, it is characterized in that evaporated flue is connected with drum, drum one tunnel is connected with feed pump, oxygen-eliminating device; Another road of drum is connected with storage heater, storage heater is connected with steam manifold, steam manifold is connected with the steam-water separator unit through the stop valve first, the steam-water separator unit is connected with the overhead steam boiler unit through stop valve second, stop valve third, and the place is connected with dirt separator through the stop valve fourth behind stop valve third, be connected with water pump, dirt separator is connected with water making station through stop valve penta; Water pump through stop valve oneself, stop valve heptan, stop valve is hot is connected with the hot water unit, the hot water unit is connected with the overhead steam boiler unit with the air preheater unit; The air preheater unit is connected with flue through frequency conversion air inducing unit, and the air preheater unit also is connected with the blower fan unit; Another road of evaporated flue is connected with burner through coal gas gas collection cabinet, coal gas pressurizing point, and burner is connected with the air preheater unit with the overhead steam boiler unit; Oxygen-eliminating device is connected with the overhead steam boiler unit through stop valve ninth of the ten Heavenly Stems, hot water unit, the overhead steam boiler unit is connected with steam turbine through hot gas safety valve, steam-flow meter, stop valve last of the ten Heavenly stems, blowoff valve, steam check-valves, stop valve first `, steam turbine is connected with generator, steam turbine also is connected with steam condenser, and steam condenser is connected with the hot water unit through rehydration pump, stop valve the ninth of the ten Heavenly Stems.
The present invention is heated into superheated steam again with saturated vapor, and the temperature of its superheated steam is 300-450 ℃.
The temperature of superheated steam of the present invention is 350 ℃.
Advantage of the present invention is that device is rationally distributed, the utilization device is superior fastidious, select for use again mode of heating proper, adopt the generating of this device to generate electricity to compare and to improve 144% generated energy with saturated vapor, and the coal gas of converter that the fuel that is used for heating again adopts unnecessary quilt to diffuse, its gas to generate electricity utilization ratio can reach 46%, than gas boiler---and 25% of steam turbine generator efficient improves more than 90%.
Four, description of drawings:
Fig. 1 is a total arrangement schematic diagram of the present invention.
Five, the specific embodiment:
As shown in Figure 1, this device includes evaporated flue 1, drum 2, feed pump 3, oxygen-eliminating device 4, storage heater 5, steam manifold 6, steam-water separator unit 9, water making station 7, dirt separator 8, coal gas gas collection gas holder 12, coal gas pressurizing point 13, overhead steam boiler unit 15, burner 14, hot water unit 16, air preheater unit 17, blower fan unit 18, mass air flow sensor 22, steam turbine 23, generator 24, steam condenser 25, rehydration pump 26, frequency conversion air inducing unit 34 and smokejack, it is characterized in that evaporated flue 1 is connected with drum 2, drum 2 one tunnel and feed pump 3, oxygen-eliminating device 4 connects; Drum 2 another roads are connected with storage heater 5, storage heater 5 is connected with steam manifold 6, steam manifold 6 is connected with steam-water separator unit 9 through stop valve first 11, steam-water separator unit 9 is connected with overhead steam boiler unit 15 through stop valve second 11`, stop valve the third 10, and be connected with dirt separator 8 through stop valve fourth 32 at place, stop valve the third 10 back, be connected with water pump 28, dirt separator 8 is connected with water making station 7 through stop valve penta 35; Water pump 28 through stop valve oneself 28, stop valve heptan 30, stop valve hot 31 is connected with hot water unit 16, hot water unit 16 is connected with overhead steam boiler unit 15 with air preheater unit 17; Air preheater unit 17 is connected with flue through frequency conversion air inducing unit 34, and air preheater unit 17 also is connected with blower fan unit 18; Another road of evaporated flue 1 is connected with burner 14 through coal gas gas collection cabinet 12, coal gas pressurizing point 13, and burner 14 is connected with air preheater unit 17 with overhead steam boiler unit 15; Oxygen-eliminating device 4 is connected with overhead steam boiler unit 15 through stop valve 11`` in the ninth of the ten Heavenly Stems, hot water unit 16, overhead steam boiler unit 15 is connected with steam turbine 23 through hot gas safety valve 19, steam-flow meter 22, stop valve last of the ten Heavenly stems 20, blowoff valve 27, steam check-valves 33, stop valve first `21, steam turbine 23 is connected with generator 24, steam turbine 23 also is connected with steam condenser 25, and steam condenser 25 is connected with hot water unit 16 through rehydration pump 26, stop valve 11``` in the ninth of the ten Heavenly Stems.
The present invention is heated into superheated steam again with saturated vapor, and the temperature of its superheated steam is 300-450 ℃.
The temperature of superheated steam of the present invention is 350 ℃.

Claims (3)

1, a kind of power generation device by using residual heat and exhaust gas from converter, include evaporated flue (1), drum (2), feed pump (3), oxygen-eliminating device (4), storage heater (5), steam manifold (6), steam-water separator unit (9), water making station (7), dirt separator (8), coal gas gas collection gas holder (12), coal gas pressurizing point (13), overhead steam boiler unit (15), burner (14), hot water unit (16), air preheater unit (17), blower fan unit (18), mass air flow sensor (22), steam turbine (23), generator (24), steam condenser (25), rehydration pump (26), frequency conversion air inducing unit (34) and smokejack, it is characterized in that evaporated flue (1) is connected with drum (2), drum (2) a tunnel and feed pump (3), oxygen-eliminating device (4) connects; Another road of drum (2) is connected with storage heater (5), storage heater (5) is connected with steam manifold (6), steam manifold (6) is connected with steam-water separator unit (9) through stop valve first (11), steam-water separator unit (9) is connected with overhead steam boiler unit (15) through stop valve second (11`), stop valve third (10), and the place is connected with dirt separator (8) through stop valve fourth (32) behind stop valve third (10), be connected with water pump (28), dirt separator (8) is connected with water making station (7) through stop valve penta (35); Water pump (28) is connected with hot water unit (16) through stop valve own (28), stop valve heptan (30), stop valve suffering (31), and hot water unit (16) is connected with overhead steam boiler unit (15) with air preheater unit (17); Air preheater unit (17) is connected with flue through frequency conversion air inducing unit (34), and air preheater unit (17) also is connected with blower fan unit (18); Another road of evaporated flue (1) is connected with burner (14) through coal gas gas collection cabinet (12), coal gas pressurizing point (13), and burner (14) is connected with air preheater unit (17) with overhead steam boiler unit (15); Oxygen-eliminating device (4) is connected with overhead steam boiler unit (15) through the stop valve ninth of the ten Heavenly Stems (11``), hot water unit (16), overhead steam boiler unit (15) is connected with steam turbine (23) through hot gas safety valve (19), steam-flow meter (22), the stop valve last of the ten Heavenly stems (20), blowoff valve (27), steam check-valves (33), stop valve first ` (21), steam turbine (23) is connected with generator (24), steam turbine (23) also is connected with steam condenser (25), and steam condenser (25) is connected with hot water unit (16) through rehydration pump (26), the stop valve ninth of the ten Heavenly Stems (11```).
2, device according to claim 1 is characterized in that saturated vapor is heated into superheated steam again, and the temperature of its superheated steam is 300-450 ℃.
3, device according to claim 1, the temperature that it is characterized in that superheated steam is 350 ℃.
CNB200610048232XA 2006-08-30 2006-08-30 Power generation device by using residual heat and exhaust gas from converter Expired - Fee Related CN100543275C (en)

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CN100543275C CN100543275C (en) 2009-09-23

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871369A (en) * 2010-05-28 2010-10-27 河北理工大学 Overheating turbine generating system for recovering sensible heat of converter gas
CN101768652B (en) * 2009-12-18 2011-05-18 南京凯盛开能环保能源有限公司 Revolving furnace flue gas waste heat power generation system and method based on high-temperature heat carrier overheating
CN102630271A (en) * 2009-11-30 2012-08-08 Ntn株式会社 Gas supply device and exhaust gas power generation system
CN102767817A (en) * 2012-06-27 2012-11-07 华北电力大学 Sedimentation tower type utility boiler system
CN103471408A (en) * 2013-09-06 2013-12-25 鞍钢股份有限公司 High-temperature flue gas waste-heat utilization system and method for heating furnace
CN103601350A (en) * 2013-10-29 2014-02-26 大连环资科技有限公司 Oily sludge resourceful treatment complete equipment
CN104153832A (en) * 2014-08-13 2014-11-19 昆明钢铁集团有限责任公司 Comprehensive efficient power generation method and system by utilization of iron and steel enterprise waste energy
CN106871105A (en) * 2017-03-01 2017-06-20 北京福生智源科技有限公司 Technological equipment for improving cogeneration power generator turbine acting ability
CN106948891A (en) * 2017-04-07 2017-07-14 力博重工科技股份有限公司 A kind of energy-efficient cement power plant joint waste heat recovery generating system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102630271A (en) * 2009-11-30 2012-08-08 Ntn株式会社 Gas supply device and exhaust gas power generation system
CN101768652B (en) * 2009-12-18 2011-05-18 南京凯盛开能环保能源有限公司 Revolving furnace flue gas waste heat power generation system and method based on high-temperature heat carrier overheating
CN101871369B (en) * 2010-05-28 2013-06-19 河北理工大学 Overheating turbine generating system for recovering sensible heat of converter gas
CN101871369A (en) * 2010-05-28 2010-10-27 河北理工大学 Overheating turbine generating system for recovering sensible heat of converter gas
CN102767817B (en) * 2012-06-27 2015-04-15 华北电力大学 Sedimentation tower type utility boiler system
CN102767817A (en) * 2012-06-27 2012-11-07 华北电力大学 Sedimentation tower type utility boiler system
CN103471408A (en) * 2013-09-06 2013-12-25 鞍钢股份有限公司 High-temperature flue gas waste-heat utilization system and method for heating furnace
CN103471408B (en) * 2013-09-06 2015-08-05 鞍钢股份有限公司 A kind of heating furnace high-temperature smoke waste heat utilization system and method
CN103601350A (en) * 2013-10-29 2014-02-26 大连环资科技有限公司 Oily sludge resourceful treatment complete equipment
CN103601350B (en) * 2013-10-29 2015-07-22 大连环资科技有限公司 Oily sludge resourceful treatment complete equipment
CN104153832A (en) * 2014-08-13 2014-11-19 昆明钢铁集团有限责任公司 Comprehensive efficient power generation method and system by utilization of iron and steel enterprise waste energy
CN104153832B (en) * 2014-08-13 2016-06-01 昆明钢铁集团有限责任公司 A kind of iron and steel enterprise's complementary energy synthesis efficient electric power generation method and power generation system thereof
CN106871105A (en) * 2017-03-01 2017-06-20 北京福生智源科技有限公司 Technological equipment for improving cogeneration power generator turbine acting ability
CN106948891A (en) * 2017-04-07 2017-07-14 力博重工科技股份有限公司 A kind of energy-efficient cement power plant joint waste heat recovery generating system

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C06 Publication
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SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Hebei Dongshan Metallurgical Industry Co., Ltd.

Assignor: Wang Gengqing|Guo Yusheng

Contract fulfillment period: 2009.9.8 to 2029.9.8 contract change

Contract record no.: 2009130000177

Denomination of invention: Power generation device by using residual heat and exhaust gas from converter

Granted publication date: 20090923

License type: Exclusive license

Record date: 2009.10.9

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.8 TO 2029.9.8; CHANGE OF CONTRACT

Name of requester: HEBEI DONGSHAN METALLURGY INDUSTRIAL CO., LTD.

Effective date: 20091009

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090923

Termination date: 20100830