Title:
VALVE CONTROL DEVICE, GAS TURBINE, AND VALVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2013/080894
Kind Code:
A1
Abstract:
A valve control device (50) controls the degree of opening of a pressure adjustment valve (44), and is provided in a gas turbine (12), which is equipped with: a combustor (22) that generates combustion gas by burning a fuel; a turbine (24) driven by the combustion gas generated by the combustor (22); a flow volume adjustment valve (42) that adjusts the flow volume of the fuel supplied to the combustor (22); and the pressure adjustment valve (44) that adjusts the fuel pressure and is arranged upstream from the flow volume adjustment valve (42) in a fuel flow path (40) that supplies fuel to the combustor (22). The valve control device (50) is equipped with a load reduction detection unit (52), which detects a reduction in the load of the gas turbine (12), and a pressure control unit (56) which, when a load reduction has been detected by the load reduction detection unit (52), controls the degree of opening of the pressure adjustment valve (44) in response to the output of the gas turbine (12) after the load reduction. Thus, the valve control device (50) prevents unstable output from the gas turbine even when the load decreases sharply.
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Inventors:
SAITO AKIHIKO (JP)
SONODA TAKASHI (JP)
UDA TAKAFUMI (JP)
FUJII FUMINORI (JP)
SONODA TAKASHI (JP)
UDA TAKAFUMI (JP)
FUJII FUMINORI (JP)
Application Number:
PCT/JP2012/080388
Publication Date:
June 06, 2013
Filing Date:
November 22, 2012
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F02C9/28; F02C7/22; F02C9/50
Foreign References:
| JPH03267528A | 1991-11-28 | |||
| JP2007205224A | 2007-08-16 | |||
| JP2006090287A | 2006-04-06 | |||
| JP2010121598A | 2010-06-03 | |||
| JP3828738B2 | 2006-10-04 |
Other References:
See also references of EP 2752568A4
Attorney, Agent or Firm:
FUJITA, Takaharu et al. (JP)
Takaharu Fujita (JP)
Takaharu Fujita (JP)
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Claims: