Title:
GAS TURBINE AND METHOD OF OPERATING GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2017/038371
Kind Code:
A1
Abstract:
This gas turbine is provided with an exhaust diffuser (5) in which is formed an exhaust passage (Pe) for channeling exhaust gas from a turbine, and a cooling device (6) for cooling a structure in the exhaust diffuser (5) that faces the exhaust passage (Pe). The cooling device (6) has: a guiding part (7) for guiding a cooling medium to the structure, a guiding passage (Pg) for channeling the cooling medium being formed inside the guiding part (7); and a switching part (8) that can switch between a first state in which the flow rate of the cooling medium flowing through the guiding passage (Pg) is brought to a first flow rate corresponding to a rated operation, and a second state in which the flow rate is brought to a second flow rate greater than the first flow rate.
Inventors:
IJIMA TAKAYOSHI (JP)
HASHIMOTO SHINYA (JP)
HASHIMOTO SHINYA (JP)
Application Number:
PCT/JP2016/072934
Publication Date:
March 09, 2017
Filing Date:
August 04, 2016
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D25/30; F01D17/14; F01D25/00; F01D25/12; F01D25/24; F02C7/00; F02C9/00
Domestic Patent References:
| WO2009087847A1 | 2009-07-16 |
Foreign References:
| JPS59173527A | 1984-10-01 | |||
| JPS55137319A | 1980-10-27 | |||
| US8756911B1 | 2014-06-24 | |||
| US8641362B1 | 2014-02-04 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
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