[특허]Combined generating plant and its start-up control device and start-up control method

[미국특허] Combined generating plant and its start-up control device and start-up control method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-006/00
출원번호	US-0779093 (1991-10-18)
우선권정보	JP-0280244 (1990-10-18)
발명자 / 주소	Ozono Jiro (Kanagawa JPX)
출원인 / 주소	Kabushiki Kaisha Toshiba (Kawasaki JPX 03)
인용정보	피인용 횟수 : 17 인용 특허 : 0

초록 ▼

A combined cycle generating plant wherein a gas turbine, a generator and a steam turbine are arranged on the same shaft, equipped with steam generating means that provides a source of high pressure steam and low pressure steam produced by the waste heat from the gas turbine, a high pressure steam regulating valve that controls the high pressure steam flowing into the high pressure turbine and a low pressure steam regulating valve that controls the low pressure steam, and provided with an auxiliary steam system for start-up purposes within the low pressure steam system. The plant also provides a start-up control device for start-up of the low pressure turbine using auxiliary steam from the auxiliary steam system when the combined cycle generating plant is in cold start condition and provides a start-up control device that controls start-up of the high pressure turbine when the combined cycle generating plant is in warm start condition.

대표청구항 ▼

A method for effecting start-up of a combined generating plant when in a cold start condition, said plant having a gas turbine, a steam turbine and a generator coupled to a single shaft, said steam turbine having a low-pressure steam turbine and a high-pressure steam turbine driven by introducing high-pressure steam from a high-pressure drum and low-pressure steam from a low-pressure drum thereto, respectively, an auxiliary steam system for supplying auxiliary low-pressure steam to said low-pressure turbine, and high- and low-pressure steam regulating valves for regulating flow rates of the high- and low-pressure steam, respectively, using said low-pressure turbine, comprising the following steps: determining whether said combined generating plant is in a cold start condition; actuating said auxiliary steam system when the cold start condition is recognized; controlling a speed of rotation of said low-pressure steam turbine to coincide with a set value of start-up speed of said low-pressure steam turbine, whose speed of rotation is set beforehand, by regulating a degree of opening of said low-pressure steam regulating valve; compensating for a change of rotational speed of said low-pressure steam turbine corresponding to an amount of rotational torque applied to said low-pressure steam turbine by said gas turbine when fuel is introduced into said gas turbine, by further regulating said degree of opening of said low-pressure steam regulating valve; supplying to said low-pressure steam turbine a predetermined minimum flow rate of steam of said low-pressure steam when the rotational speed of said low-pressure turbine reaches a predetermined value; and fully opening said low-pressure steam regulating valve when start-up of said combined generating plant is completed.

이 특허를 인용한 특허 (17) 인용/피인용 타임라인 분석

Hattori,Youichi; Inui,Taiji, Combined cycle plant.
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Hattori,Youichi; Inui,Taiji, Combined cycle plant.
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Frutschi Hans Ulrich,CHX, Combined cycle power plant.
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Sommer, Steven Trent; Trevino, Jr., John; Iancu, Florin; Chervil, Rudy; Smyder, Eric John, Compressor control system using a variable geometry diffuser.
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Fuller, Jason Dean; Allen, Justin Aaron; Minto, Karl Dean, Control apparatus for angling guide vanes of a torque converter.
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Watanabe, Hironori; Tobo, Masayuki; Yamasaki, Takuji; Juangsa, Firman Bagja, Control valve control method and control device, and power generating plant utilizing same.
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Berendt, Oliver; Hampel, Jens; Schmidt, Olaf, Generator-stream turbine-turbocompressor string regulated by variation of a mains power supplied and by a live steam feed and method for operating the same.
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Hays, Lance G., Heat recovery system.
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Tong, Leslie Yung-Min; Rancruel, Diego Fernando; Hu, Tailai; Holt, Joel Donnell, Method and apparatus for combined cycle power plant startup.
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Liebig, Erhard; Rickli, Jean-Pierre, Method for operating a combined cycle power plant, and combined cycle power plant.
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Krakowitzer Wilhelm,CHX, Method for starting gas turbine in combined cycle power station.
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Blatter, Richard; Mueller, Peter; Hepner, Stephan, Method for starting up and loading a combined power plant.
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Bescherer, Helmut; Diegel, Dieter; Frank, Reinhard; Gottfried, Peter; Henning, Michael; Zaviska, Oldrich, Method for the primary control in a combined gas/steam turbine installation.
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Vernet, Valerie S.; Alexander, Michael J.; Maters, John C.; Graf, Kelly M.; Fuller, Jason D., Method of starting a turbomachine by testing operational support systems during the purging process.
상세보기
Gericke Bernd,DEX ; Faustmann Norbert,DEX ; Jeske Hans-O.,DEX ; Hansen Ole,DEX, Power generation in a combination power plant with a gas turbine and a steam turbine.
상세보기
Asanaka, Toshitada; Tateishi, Manabu; Tobou, Masayuki; Kitaguchi, Kouichi; Ito, Masao; Matsushita, Takehiko, Single shaft combined cycle power plant start-up method and single shaft combined cycle power plant.
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Helbig, Klaus; Kuehne, Christian; Mohr, Wolfgang Franz Dietrich, Warming arrangement for a power plant.
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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 generating plant and its start-up control device and start-up control method 원문보기