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Patent Searching and Data


Title:
POWER PLANT
Document Type and Number:
WIPO Patent Application WO/2020/255719
Kind Code:
A1
Abstract:
According to the present invention, an FCB operation is efficiently performed, and a subsequent in-house single load operation is also smoothly performed. This power plant comprises: a boiler (110); steam turbines (121, 122, 123); a water supply line (130) that supplies exhaust steam from the steam turbines to the boiler via a steam condenser (131) that returns the exhaust steam to water; a makeup water line (221) that supplies makeup water onto a flow path through which heated steam generated by the boiler returns to the boiler via a water supply line and a makeup water opening/closing valve (231) that opens and closes the makeup water line; and a control device (150) that controls the opening degrees of a pressure control valve and the makeup water opening/closing valve (231), wherein in an initial step from the start of a fast cutback operation performed when the power plant is shut off from the power plant to an in-house single load operation that generates in-house auxiliary power of the power plant in a state in which the power plant is shut off from the power transmission system, the pressure control valve and the makeup water opening/closing valve are controlled to an open state.

Inventors:
YAMAMOTO KENJIRO (JP)
KANEKO SHOZO (JP)
NAMEKI YUJI (JP)
NASU SHUNICHI (JP)
SASAKI KENJI (JP)
HIRASAKI DAIJIRO (JP)
KOSAKA KENICHIRO (JP)
NAKAMURA SHINJI (JP)
KAN RYOSUKE (JP)
KOBAYASHI YUTA (JP)
Application Number:
JP2020/021961
Publication Date:
December 24, 2020
Filing Date:
June 03, 2020
Export Citation:
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Assignee:
MITSUBISHI POWER LTD (JP)
International Classes:
F01K13/02; F01D21/14; F22B35/00; F22D11/00
Foreign References:
JP2003148111A2003-05-21
JPS57104004A1982-06-28
JPS59203812A1984-11-19
JPS5419803A1979-02-14
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)
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