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Title:
GAS TURBINE COMBUSTOR AND OPERATION METHOD OF GAS TURBINE
Document Type and Number:
Japanese Patent JP2013234769
Kind Code:
A
Abstract:

To provide a highly reliable gas turbine combustor for controlling a load change at the fuel switching of the gas turbine combustor, and for detecting the burner temperature rise of a combustor and protecting thereof.

A gas turbine combustor includes a first fuel supply system 121 for supplying a liquid fuel 100 to a liquid fuel nozzle 13, a first flow regulating valve 105 provided there, a second fuel supply system capable of supplying fuel to a combustion chamber, a second flow regulating valve provided there, and a thermometer 250 for measuring a temperature of a fluid that flows in a flow path from the downstream side rather than the first flow regulating valve to a mixing chamber 11a or a member constituting the flow path, wherein the combustor includes a regulator 260 for controlling at least either one of the opening of a first flow regulating valve or a second flow regulating valve by detecting a change of a temperature of the fluid or the member constituting the flow path measured by the thermometer when a liquid fuel feed to the first fuel supply system is started and an operating state is switched.


Inventors:
TAKAHASHI HIROKAZU
HIRATA YOSHITAKA
SEKIGUCHI TATSUYA
YOSHIDA SHOHEI
SASAO TOSHIBUMI
HAYASHI AKINORI
Application Number:
JP2012105592A
Publication Date:
November 21, 2013
Filing Date:
May 07, 2012
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
F23R3/28; F02C7/22; F02C7/228; F02C9/40; F23R3/36
Domestic Patent References:
JP2008106777A2008-05-08
JP2007327338A2007-12-20
JP2007024357A2007-02-01
JP2007315327A2007-12-06
JP2010153227A2010-07-08
JPH04143425A1992-05-18
JP2003262336A2003-09-19
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki