Title:
GAS TURBINE, DEVICE FOR CONTROLLING GAS TURBINE, AND METHOD FOR COOLING GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2015/115625
Kind Code:
A1
Abstract:
A gas turbine, a device for controlling the gas turbine, and a method for cooling the gas turbine, wherein the gas turbine has a cooling air supply channel (41) for supplying compressed air bled from a compressor (11) to a disc cavity (31) of a turbine (13), a cooler-side valve (44) provided to the cooling air supply channel (41), a thermometer (48) for measuring the temperature of the environment in the disc cavity (31), and a control device (49) for adjusting the opening degree of the cooler-side valve (44) on the basis of the temperature of the environment measured by the thermometer (48), the control device (49) having a first valve opening degree set value (A1) in the cooler-side valve (44) and a second valve opening degree set value (A2) greater than the first valve opening degree set value (A1), the first valve opening degree set value (A1) being applied when the temperature of the environment is lower than a preset switching temperature, and the second valve opening degree set value (A2) being applied when the temperature of the environment is higher than the switching temperature.
Inventors:
MORIMOTO KAZUKI (JP)
TANAKA KATSUNORI (JP)
TANAKA KATSUNORI (JP)
Application Number:
PCT/JP2015/052770
Publication Date:
August 06, 2015
Filing Date:
January 30, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F02C7/18; F01D5/08; F01D25/12; F02C6/08; F02C9/18
Foreign References:
| JP2013057278A | 2013-03-28 | |||
| JP2012102648A | 2012-05-31 | |||
| JPH11513772A | 1999-11-24 | |||
| JP2013036357A | 2013-02-21 |
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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