Title:
GAS TURBINE STARTUP METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/077921
Kind Code:
A1
Abstract:
A gas turbine startup method and device wherein 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 a low-pressure bleed chamber (25a), a medium-pressure bleed chamber (25b), and a high-pressure bleed chamber (25c) of a compressor (11) as cooling air to a turbine (13) are provided, a low-pressure exhaust passage (44), a medium-pressure exhaust passage (45), and a high-pressure exhaust passage (46) for discharging the compressed air in the low-pressure bleed passage (41), the medium-pressure bleed passage (42), and the high-pressure bleed passage (43) to the turbine exhaust system are provided, and the low-pressure exhaust passage (44), the medium-pressure exhaust passage (45), and the high-pressure exhaust passage (46) are provided respectively with a low-pressure exhaust valve (47), a medium-pressure exhaust valve (48), and a high-pressure exhaust valve (49). When the gas turbine (10) starts up, the high-pressure exhaust valve (49) is opened before the startup state of the gas turbine (10) reaches a region in which rotation stall is generated.
Inventors:
OKUI HIDETAKA (JP)
SUZUKI KENTARO (JP)
AI TOSHISHIGE (JP)
IWASAKI TATSUYA (JP)
OKAJIMA YOSHIFUMI (JP)
SUZUKI KENTARO (JP)
AI TOSHISHIGE (JP)
IWASAKI TATSUYA (JP)
OKAJIMA YOSHIFUMI (JP)
Application Number:
PCT/JP2016/081759
Publication Date:
May 11, 2017
Filing Date:
October 26, 2016
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F02C9/18; F01D17/00; F01D19/00; F02C7/26
Foreign References:
| JPS61142335A | 1986-06-30 | |||
| JP2000291449A | 2000-10-17 | |||
| JP2010281224A | 2010-12-16 | |||
| JP2008196399A | 2008-08-28 | |||
| JPS56109630U | 1981-08-25 | |||
| JP2001090555A | 2001-04-03 | |||
| JPS62126296A | 1987-06-08 | |||
| US4060979A | 1977-12-06 | |||
| US20140271113A1 | 2014-09-18 | |||
| JP2012102648A | 2012-05-31 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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