[특허]Steam cooling apparatus for gas turbine

[미국특허] Steam cooling apparatus for gas turbine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-006/00
출원번호	US-0147724 (1999-04-29)
우선권정보	JP-0297104 (1997-10-29)
국제출원번호	PCT/JP98/02801 (1998-06-24)
§371/§102 date	19990429 (19990429)
국제공개번호	WO-9859158 (1998-12-30)
발명자 / 주소	Takahama Masayuki,JPX Hashimoto Yasuhiro,JPX Kita Yoshinori,JPX Tanaka Tomoka,JPX
출원인 / 주소	Mitsubishi Heavy Industries, Ltd., JPX
대리인 / 주소	Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
인용정보	피인용 횟수 : 12 인용 특허 : 4

초록 ▼

The present invention relates to a steam-cooling system for gas turbine combustors in combined plants possessing a steam-cooled combustor; in order to maintain the combustor outlet steam temperature at planned values even during the starting and during the periods of load fluctuation, a steam valve 12 is opened and steam from a boiler 4 is conducted, and thereby the combustor of the gas turbine 1 is cooled, and steam recovery valve 11 is opened and this steam is returned to steam turbine 5. During the starting, steam is caused to flow from an auxiliary steam source 3, and a warming up is conducted. When the amount of steam at the combustor outlet decreases, the temperature of the temperature sensor 31 increases, and when this exceeds a planned value, a temperature regulating valve 30 is opened and steam from steam turbine 5 is extracted and is let into the cooling steam outlet side flow path 61 of the combustor. Furthermore, when the value of a pressure sensor 24 reaches a predetermined value, a bypass valve 14 is opened and steam is caused to flow to a condenser 6, and thus the necessary amount of steam is maintained within the combustor. This is all controlled by means of the controller 10, which constantly maintains the temperature of the cooling steam at planned values.

대표청구항 ▼

[ What is claimed is:] [1.] A steam-cooling system for gas turbine combustors in combined plants, in which combustion gas exhausted from a gas turbine is directed to a boiler, steam is generated in the boiler, and a steam turbine is driven using this steam while a part of the steam from the boiler is extracted and supplied to the gas turbine combustor to cool the combustor, and after being used for this cooling, the steam is returned to the steam turbine; which comprises:a temperature sensor for detecting the temperature of steam in a cooling steam outlet side flow path of the gas turbine combustor;a steam flow path through which steam is extracted from an exhaust system of the steam turbine and the extracted steam from the steam turbine is let into the cooling steam outlet side flow path of the gas turbine combustor via a temperature regulating valve; anda controller which receives detected temperature signals from the temperature sensor and conducts control such that the valve is opened when the detected temperature is in excess of a predetermined value, and closed when this temperature is equal to or lower than the predetermined value.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Cloyd Scott Thorsten ; Bohinsky Brian Joseph ; Paprotna Hubertus Edward, Coal fuel gas turbine system.
상세보기
Berman Paul A. (Plymouth Meeting PA), Power generating plant employing a reheat pressurized fluidized bed combustor system.
상세보기
Tomlinson Leroy O. (Schenectady NY) Smith Raub W. (Clifton Park NY), Steam cycle for combined cycle with steam cooled gas turbine.
상세보기
Horner Michael W., Steam driven variable speed booster compressor for gas turbine.
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이 특허를 인용한 특허 (12) 인용/피인용 타임라인 분석

Maryamchik, Mikhail; Szmania, Michael J.; Walker, David J.; Wietzke, Donald L., Black plant steam furnace injection.
상세보기
Muyama Akimasa,JPX ; Yasuraoka Jun,JPX, Combined cycle electric power plant.
상세보기
Hattori,Youichi; Inui,Taiji, Combined cycle plant.
상세보기
Hattori,Youichi; Inui,Taiji, Combined cycle plant.
상세보기
Petzen, John, Control of steam temperature in combined cycle power plant.
상세보기
Bilton, Timothy Russell; Erickson, Dean Matthew; Gallagher, Brian Michael; Eluripati, Ravi Praveen; Sivasankaran, Rakesh, Fuel heater system including hot and warm water sources.
상세보기
Kita Yoshiyuki,JPX, Gas turbine combined plant, method of operating the same, and steam-cooling system for gas turbine hot section.
상세보기
Adachi, Shigeto; Narukawa, Yutaka; Fujii, Tetsuro; Arahira, Kazuya; Yamamoto, Masakazu; Kobayashi, Yutaka; Sageshima, Toshio, Heat energy recovery system.
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Taguchi, Jyun; Hyakutake, Yoshinori; Takahama, Masayuki, Operation method for combined plant.
상세보기
Tanaka, Tomoka; Hiramoto, Koji; Kita, Yoshiyuki, Steam cooling apparatus for gas turbine.
상세보기
Hiraga Ichiro JP; Yuichi Iwamoto JP; Youichi Hattori JP; Shinichi Hoizumi JP, Steam-cooled gas turbine combined power plant.
상세보기
Jordan, Jr., Harold Lamar; Lin, TsungPo; Sholes, Jr., John Edward, System and method for warming up a steam turbine.
상세보기

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Steam cooling apparatus for gas turbine 원문보기