The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Jul. 20, 2016
Mitsubishi Hitachi Power Systems, Ltd., Nishi-ku, Yokohama, JP;
Tatsuro Yashiki, Tokyo, JP;
Yasuhiro Yoshida, Tokyo, JP;
Takuya Yoshida, Tokyo, JP;
Miyuki Kawata, Tokyo, JP;
Eunkyeong Kim, Tokyo, JP;
Kazunori Yamanaka, Yokohama, JP;
Norihiro Iyanaga, Yokohama, JP;
Fumiyuki Suzuki, Yokohama, JP;
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Abstract
There is provided a combined cycle power plant in which a high-pressure steam turbine and an intermediate-pressure steam turbine can operate in a state where amounts of thermal effect thereof are close to a limit value, and capable of reducing start-up time. A combined cycle power plant includes: an exhaust heat recovery boiler that includes a high-pressure superheater which superheats steam for a high-pressure steam turbine, and a reheater which reheats steam for an intermediate-pressure steam turbine; bypass pipes through which steam bypasses the high-pressure superheater and the reheater; bypass valves that regulate flow rates of steam which flows through the bypass pipes; and a bypass controller that controls the bypass valves such that a difference between thermal effect-amount margins of the turbines is decreased.