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.

Date of Patent:
Aug. 23, 2016

Filed:

Jun. 25, 2014
Applicant:

Mitsubishi Hitachi Power Systems, Ltd., Yokohama-shi, Kanagawa, JP;

Inventors:

Eunkyeong Kim, Tokyo, JP;

Yasuhiro Yoshida, Tokyo, JP;

Takuya Yoshida, Tokyo, JP;

Tatsuro Yashiki, Tokyo, JP;

Nobuyuki Hokari, Yokohama, JP;

Kenichiro Nomura, Yokohama, JP;

Kazunori Yamanaka, Yokohama, JP;

Fumiyuki Suzuki, Yokohama, JP;

Masaaki Tomizawa, Yokohama, JP;

Yuichi Takahashi, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 19/02 (2006.01); F01K 13/02 (2006.01); F01D 17/08 (2006.01); F01D 17/00 (2006.01); F01K 23/10 (2006.01);
U.S. Cl.
CPC ...
F01D 19/02 (2013.01); F01D 17/00 (2013.01); F01D 17/085 (2013.01); F01K 13/02 (2013.01); F01K 23/101 (2013.01); Y02E 20/16 (2013.01);
Abstract

A start control unit for a steam turbine plant, wherein inputting a measured value of a steam temperature fed to a steam turbine, a measured value or an estimated value of a rotor temperature of the steam turbine, and a measured value of a casing temperature of the steam turbine, and controlling a steam flow rate so as to increase the steam flow rate fed to the steam turbine when a difference between the steam temperature and the rotor temperature is smaller than a first regulated value and a difference between the rotor temperature and the casing temperature is a second regulated value or larger.


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