WO1999037902A1 - Centrale electrique a cycle mixte - Google Patents

Centrale electrique a cycle mixte Download PDF

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Publication number
WO1999037902A1
WO1999037902A1 PCT/JP1998/000263 JP9800263W WO9937902A1 WO 1999037902 A1 WO1999037902 A1 WO 1999037902A1 JP 9800263 W JP9800263 W JP 9800263W WO 9937902 A1 WO9937902 A1 WO 9937902A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam
gas turbine
warming
combined cycle
plant
Prior art date
Application number
PCT/JP1998/000263
Other languages
English (en)
Japanese (ja)
Inventor
Hiroyuki Yamamoto
Jun Yasuraoka
Original Assignee
Mitsubishi Heavy Industries, Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP19460496A priority Critical patent/JP3825092B2/ja
Application filed by Mitsubishi Heavy Industries, Ltd. filed Critical Mitsubishi Heavy Industries, Ltd.
Priority to DE19882241T priority patent/DE19882241B4/de
Priority to US09/381,612 priority patent/US6164056A/en
Priority to CA002284493A priority patent/CA2284493C/fr
Priority to PCT/JP1998/000263 priority patent/WO1999037902A1/fr
Publication of WO1999037902A1 publication Critical patent/WO1999037902A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F01K23/106—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle with water evaporated or preheated at different pressures in exhaust boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12—Cooling of plants
    • F02C7/16—Cooling of plants characterised by cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/232—Heat transfer, e.g. cooling characterized by the cooling medium
    • F05D2260/2322—Heat transfer, e.g. cooling characterized by the cooling medium steam
    • 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
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Definitions

  • the present invention relates to a combined cycle power generation plant in which a gas evening bin plant and a steam turbine plant are combined.
  • a combined cycle power plant is a power generation system that combines a gas turbine plant and a steam bin bin plant.
  • the high-temperature region of heat energy is shared by the gas turbine, and the low-temperature region is shared by the steam turbine.
  • This is a power generation system that has been effectively collected and used, and has recently been particularly spotlighted.
  • a cooling system must be provided for the formation of the high-temperature region in view of the heat resistance of the turbine structure, and air has been conventionally used as a cooling medium in this cooling system.
  • this technology of steam cooling is still a trial and error stage, and the conventional technology of purging the drain from the steam cooling system when starting the gas turbine and subsequently warming it up is still incomplete. The situation is that they have not gone out.
  • the present invention has been made in view of such a problem, and an object of the present invention is to provide a device capable of effectively processing noise generated due to steam release such as warm-up.
  • the present invention has been made to achieve the above-mentioned object, and combines a gas turbine bin plant and a steam turbine plant to utilize steam exhausted from the gas turbine bin to produce steam.
  • a steam cooling system for cooling the high-temperature portion to be cooled of the gas bin is provided with steam, and a superheated steam from the steam cooling system is provided to the steam bin.
  • a combined cycle power plant configured to be recovered, a combined cycle power plant was provided, which was provided with piping for guiding the steam warmed up by the steam cooling system to a gas turbine exhaust duct at the time of startup, and was used for warming.
  • the steam is guided to the gas exhaust bin through a separately installed pipe, and the noise caused by the discharge of the warming steam is absorbed and processed by the gas turbine exhaust duct.
  • noise that has been ignored or overlooked during warming or the like can be utilized by using existing equipment without adding new equipment and without generating additional costs. It could be easily processed, and the stability and reliability of the plant could be further improved.
  • FIG. 1 is a system diagram showing one embodiment of a combined cycle power generation plant according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
  • the combustor 103 is configured as main equipment.
  • Reference numeral 200 denotes an exhaust heat recovery boiler, which uses the exhaust gas of the gas turbine 101 as a heating source and mainly includes a high-pressure steam generator 201, a medium-pressure steam generator 202, and a low-pressure steam generator 203. It is configured as a unit.
  • Reference numeral 300 denotes a steam evening bin plant in which high-pressure turbine 301 is supplied with high-pressure steam from the exhaust heat recovery poirer 200, and steam is supplied from a steam recovery system 405, which will be described later.
  • the low-pressure steam is supplied from the pressurized water bin 302 and the heat recovery boiler 200 described above.
  • the supplied low-pressure turbine 303 is configured as main equipment.
  • Reference numeral 400 denotes a steam cooling system, which is a cooling steam supply system 401 connected to the exhaust part 304 of the high-pressure turbine 301, and which branches off from the cooling steam supply system 401 and the combustor 103.
  • a first steam cooling system 402 that cools the gas turbine 101 and a high-temperature cooled part of the gas turbine 101 branched from the cooling steam supply system 401 similarly to the first steam cooling system 402.
  • the second and third steam cooling systems 403 and 404 are configured as main equipment.
  • Reference numeral 800 denotes an exhaust system for warming steam, which is configured by connecting a pipe 801 from a steam recovery system 405 to a gas turbine exhaust duct 802. Therefore, when warming the steam cooling system 400 now, auxiliary steam for warming is supplied from the auxiliary steam source 807 schematically shown in the figure to the steam cooling system 400 via the pipe 803, and The warming steam that has warmed up the steam cooling system 400 is discharged to a gas exhaust bin exhaust duct 800 through a pipe 81.
  • the noise generated by the warming steam discharged from the pipe 801 can be sufficiently suppressed.
  • control valves 804, 805, and 806 interposed in the cooling steam supply system 401, the steam recovery system 405, and the piping 81 are not shown when performing this warming. It is needless to say that the opening and closing of the warming steam are controlled by the control device to form an exhaust system 800 for warming steam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Une centrale électrique à cycle mixte, qui élimine efficacement les bruits produits avant la sortie de vapeur au moment de la mise en température ou autre, comprend une canalisation (801) qui transporte jusqu'à un tuyau (802) d'évacuation des gaz de turbine, de la vapeur qui a servi à réchauffer un système (400) de refroidissement de vapeur utilisé pour refroidir une partie à haute température d'une turbine (100) à gaz au moment de la mise en marche; la vapeur ayant été utilisée pour chauffer étant envoyée dans le tuyau (802) d'évacuation des gaz de turbine, par la canalisation (801) qui est installée séparément pour que le tuyau (802) d'évacuation des gaz de turbine absorbe les bruits produits avant le rejet de la vapeur de réchauffement.
PCT/JP1998/000263 1996-07-24 1998-01-23 Centrale electrique a cycle mixte WO1999037902A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP19460496A JP3825092B2 (ja) 1996-07-24 1996-07-24 コンバインドサイクル発電プラント
DE19882241T DE19882241B4 (de) 1998-01-23 1998-01-23 Gas- und Dampfturbinen-Kraftwerk zum Erzeugen elektrischer Energie
US09/381,612 US6164056A (en) 1996-07-24 1998-01-23 Combined cycle electric power plant
CA002284493A CA2284493C (fr) 1998-01-23 1998-01-23 Centrale d'energie electrique a cycle combine
PCT/JP1998/000263 WO1999037902A1 (fr) 1996-07-24 1998-01-23 Centrale electrique a cycle mixte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19460496A JP3825092B2 (ja) 1996-07-24 1996-07-24 コンバインドサイクル発電プラント
PCT/JP1998/000263 WO1999037902A1 (fr) 1996-07-24 1998-01-23 Centrale electrique a cycle mixte

Publications (1)

Publication Number Publication Date
WO1999037902A1 true WO1999037902A1 (fr) 1999-07-29

Family

ID=26439128

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/000263 WO1999037902A1 (fr) 1996-07-24 1998-01-23 Centrale electrique a cycle mixte

Country Status (2)

Country Link
JP (1) JP3825092B2 (fr)
WO (1) WO1999037902A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04148035A (ja) * 1990-10-11 1992-05-21 Toshiba Corp 蒸気冷却ガスタービンシステム
JPH05163960A (ja) * 1991-12-16 1993-06-29 Tohoku Electric Power Co Inc コンバインドサイクル発電プラント
JPH0693879A (ja) * 1992-09-11 1994-04-05 Hitachi Ltd コンバインドプラント及びその運転方法
JPH09112215A (ja) * 1995-10-16 1997-04-28 Toshiba Corp ガスタービンプラントおよびその運転方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04148035A (ja) * 1990-10-11 1992-05-21 Toshiba Corp 蒸気冷却ガスタービンシステム
JPH05163960A (ja) * 1991-12-16 1993-06-29 Tohoku Electric Power Co Inc コンバインドサイクル発電プラント
JPH0693879A (ja) * 1992-09-11 1994-04-05 Hitachi Ltd コンバインドプラント及びその運転方法
JPH09112215A (ja) * 1995-10-16 1997-04-28 Toshiba Corp ガスタービンプラントおよびその運転方法

Also Published As

Publication number Publication date
JPH1037715A (ja) 1998-02-10
JP3825092B2 (ja) 2006-09-20

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