Title:
GAS TURBINE AND METHOD FOR OPERATING GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2018/012100
Kind Code:
A1
Abstract:
A gas turbine equipped with: a low-pressure bleed passage (41), a medium-pressure bleed passage (42), and a high-pressure bleed-passage (43) for supplying compressed air bled from respective bleed chambers (25a, 25b, and 25c) to a turbine (13); a low-pressure exhaust passage (44), a medium-pressure exhaust passage (45), and a high-pressure exhaust passage (46) for exhausting the compressed air in the respective bleed passages (41, 42, and 43) to an exhaust chamber (30); a low-pressure exhaust valve (47), a medium-pressure exhaust valve (48), and a high-pressure exhaust valve (49) provided respectively in the exhaust passages (44, 45, and 46); a low-pressure ejector (51) and a medium-pressure ejector (52) provided in the respective exhaust passages (44, 45); a driving air supply passage (53) for supplying the compressed air to the ejectors (51, 52); and a control device (60) that opens the exhaust valves (47, 48, and 49) and supplies compressed air from the driving air supply passage (53) to the ejectors (51, 52) when the operating state of a gas turbine (10) is in a region in which rotation stall is generated.
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Inventors:
KITAGUCHI YOSHINORI (JP)
Application Number:
PCT/JP2017/018108
Publication Date:
January 18, 2018
Filing Date:
May 12, 2017
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F02C9/28; F02C6/08; F02C7/26; F02C9/18; F04D27/02
Foreign References:
| JP2014020373A | 2014-02-03 | |||
| JP2007182785A | 2007-07-19 | |||
| JP2000291449A | 2000-10-17 | |||
| JP2014181700A | 2014-09-29 | |||
| JPS61142335A | 1986-06-30 | |||
| US4711084A | 1987-12-08 | |||
| JP2015214978A | 2015-12-03 | |||
| JP2013127247A | 2013-06-27 | |||
| US20090317242A1 | 2009-12-24 | |||
| US20100000219A1 | 2010-01-07 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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