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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.:

US 10082090 B1

PDFFull Text
Date of Patent:
Sep. 25, 2018

Filed:

Aug. 25, 2016

Systems and methods to improve shut-down purge flow in a gas turbine system

Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

David August Snider, Simpsonville, SC (US);

Lewis Berkley Davis, Jr., Niskayuna, NY (US);

Michael Joseph Alexander, Simpsonville, SC (US);

Assignee:

GENERAL ELECTRIC COMPANY, Schenectady, NY (US);

Attorney:

Fletcher Yoder, P.C.

Primary Examiner:

Kenneth M Lo

Assistant Examiner:

David J Wynne

Int. Cl.
CPC ...
F02C 9/50 (2006.01); F01D 21/00 (2006.01); F01D 25/12 (2006.01); F01K 13/00 (2006.01); F01K 23/10 (2006.01); F02C 6/18 (2006.01); F02C 7/04 (2006.01); G05B 15/02 (2006.01); F01D 25/00 (2006.01); F02C 7/232 (2006.01); F02C 9/00 (2006.01); F16T 1/00 (2006.01); F01D 25/32 (2006.01);
U.S. Cl.
CPC ...
F02C 9/50 (2013.01); F01D 21/00 (2013.01); F01D 21/003 (2013.01); F01D 25/002 (2013.01); F01D 25/12 (2013.01); F01K 13/003 (2013.01); F01K 23/10 (2013.01); F02C 6/18 (2013.01); F02C 7/04 (2013.01); F02C 7/232 (2013.01); F02C 9/00 (2013.01); F16T 1/00 (2013.01); G05B 15/02 (2013.01); F01D 25/32 (2013.01); F05D 2220/32 (2013.01); F05D 2220/72 (2013.01); F05D 2270/303 (2013.01); F05D 2270/304 (2013.01); F05D 2270/306 (2013.01); F05D 2270/54 (2013.01);
Abstract

A system includes a controller including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to control a steam turbine system coupled to a power generation system to release steam during deceleration of a gas turbine. The instructions cause the controller to receive a first temperature of the gas turbine and a rotational speed of the gas turbine. The instructions cause the controller to calculate an exhaust flow rate of the power generation system based on at least the first input signal and the second input signal. The instructions cause the controller to control the power generation system to isolate a fuel source from the gas turbine at a portion of normal operating speed of the gas turbine sufficient to achieve a predetermined purging volume during coast down of air flow through the power generation system based on the exhaust flow rate.

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