[특허]Combined cycle power plant and cooling steam supply method for gas turbine therein

[미국특허] Combined cycle power plant and cooling steam supply method for gas turbine therein 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-006/00
출원번호	US-0709425 (2000-11-13)
우선권정보	JP-0097284 (1997-04-15); JP-0097285 (1997-04-15); JP-0098933 (1997-04-16); JP-0136600 (1997-05-27); JP-0165914 (1997-06-23)
발명자 / 주소	Kazuo Uematsu JP Kazuharu Hirokawa JP Hidetaka Mori JP Hideaki Sugishita JP
출원인 / 주소	Mitsubishi Heavy Industries, Ltd. JP
대리인 / 주소	Wenderoth, Lind & Ponack, L.L.P.
인용정보	피인용 횟수 : 9 인용 특허 : 5

초록 ▼

A combined cycle power plant includes a combination of a gas turbine plant and steam turbine plant. The gas turbine cooling steam temperature is adjusted appropriately so that the gas turbine can be made of easily obtainable material. Steam supplied from the intermediate pressure evaporator is mixed into the cooling steam supply passage for supplying therethrough exhaust steam from the high pressure steam turbine into the gas turbine high temperature portion as cooling steam. Thus, cooling steam temperature is lowered without lowering of the entire efficiency, and material of less heat resistant ability becomes usable as material forming the gas turbine high temperature portion to be cooled. Thus, design and manufacture of the gas turbine may be satisfied by less expensive and easily obtainable material.

대표청구항 ▼

1. A combined cycle power plant comprising:a gas turbine plant having a high temperature portion, said gas turbine plant including a gas turbine, an air compressor driven by said gas turbine, and a combustor for burning fuel and compressed air from said air compressor; a waste heat recovery boiler for generating steam by using exhaust heat from said gas turbine plant as a heat source, said waste heat recovery boiler including a high pressure steam generating portion; a steam turbine plant including a high pressure turbine communicating with said high pressure steam generating portion of said waste heat recovery boiler so as to receive high pressure steam from said high pressure steam generating portion; and a cooling steam supply passage communicating with said gas turbine plant and with said steam turbine plant so as to supply cooling steam into said high temperature portion of said gas turbine plant, wherein said cooling steam supply passage is adapted to receive and mix only an exhaust steam from said high pressure turbine and a cooling water spray such that a temperature of the cooling steam is adjusted to a temperature appropriate for cooling said high temperature portion of said gas turbine plant.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Uematsu Kazuo,JPX ; Hirokawa Kazuharu,JPX ; Mori Hidetaka,JPX ; Sugishita Hideaki,JPX, Combined cycle power generating plant and method of supplying cooling steam for gas turbine in same.
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Sachio Shibuya JP; Yoichi Sugimori JP, Combined cycle power generation plant and operating method thereof.
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Tomlinson Leroy O. (Schenectady NY), Combined cycle with steam cooled gas turbine.
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Uematsu Kazuo,JPX ; Sugishita Hideaki,JPX, Cooling steam system for steam cooled gas turbine.
상세보기
Tomlinson Leroy O. (Schenectady NY), Steam attemperation circuit for a combined cycle steam cooled gas turbine.
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이 특허를 인용한 특허 (9) 인용/피인용 타임라인 분석

Taguchi, Jun, Boiler, combined cycle plant, and steam cooling method for boiler.
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Uematsu, Kazuo; Hyakutake, Yoshinori; Sugishita, Hideaki, Combined cycle gas turbine system.
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Uematsu, Kazuo; Hyakutake, Yoshinori; Sugishita, Hideaki, Combined cycle gas turbine system.
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Effert, Martin; Thomas, Frank, Fossil-fired steam generator.
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Gudmundson, Chris, Hydrogen based combined steam cycle apparatus.
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Briesch, Michael S.; Mitchell, Robert M., Multi-mode complex cycle power plant.
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Sugishita, Hideaki; Aoki, Sunao; Uematsu, Kazuo; Tsukagoshi, Keizo, Steam cooled gas turbine system with regenerative heat exchange.
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Elwood, David; Steinebronn, Brad A., Steam cooling control for a combined cycle power plant.
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College, John W., System and method for the production of gypsum using heat recovery.
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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] Combined cycle power plant and cooling steam supply method for gas turbine therein 원문보기