Title:
複合発電システムにおけるガスタービン出力増加方法
Document Type and Number:
Japanese Patent JP3621809
Kind Code:
B2
Abstract:
A pressurized fluidized-bed combined cycle electric power generation system intended to increase the output of the gas turbine and improve the prevention of surging, comprising a steam turbine, a pressurized fluidized-bed boiler for burning air from an air supply system and fuel from a fuel supply system to generate steam to be supplied to the steam turbine, a gas turbine driven by exhaust gas consisting of combustion gas of the pressurized fluidized-bed boiler and the air and a compressor directly coupled to the gas turbine; the system being further provided with a first bypass passage having a valve and communicating with both of the outlet side of the compressor and the exhaust side of the gas turbine, a second bypass passage having a valve and communicating with both of the outlet side of the compressor and the inlet side of the gas turbine, and a control system to which pressure values detected by a pressure sensor for detecting the outlet pressure of the compressor are inputted for controlling the valves of the first and the second bypass passages according to the relationship between a predetermined opening of a variable stator blade of the compressor inlet and surging limit pressure; wherein steam generated by the pressurized fluidized-bed boiler is partly bled and mixed into the exhaust or the air to be supplied to the gas turbine, and air from the compressor is supplied as combustion air for the pressurized fluidized-bed boiler.
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Inventors:
Katsuhiko Abe
Hyaktake Shintoku
Makoto Kato
Satoshi Uchida
Hyaktake Shintoku
Makoto Kato
Satoshi Uchida
Application Number:
JP17191797A
Publication Date:
February 16, 2005
Filing Date:
June 27, 1997
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F01K17/04; F01K21/04; F01K23/02; F01K23/06; F02C3/30; F02C6/18; (IPC1-7): F01K23/02; F01K17/04; F02C3/30; F02C6/18
Domestic Patent References:
| JP9256815A | ||||
| JP9088519A | ||||
| JP9088514A | ||||
| JP8270459A | ||||
| JP8270408A | ||||
| JP7119413A | ||||
| JP6323162A | ||||
| JP6264763A | ||||
| JP5163961A | ||||
| JP5163960A | ||||
| JP4246244A | ||||
| JP4148035A |
Attorney, Agent or Firm:
Shin Ishikawa
Akira Ishikawa
Akira Ishikawa