Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1998-07-29
2000-03-21
Kamen, Noah P.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
F02C 600
Patent
active
06038851&
ABSTRACT:
An exhaust re-combustion type combined cycle power generation plant comprises a gas turbine plant, a boiler connected to the gas turbine plant, in which an exhaust gas from the gas turbine plant is heated, a steam turbine plant connected to the boiler and provided with a condensate and feed water system and a low temperature reheat system, in which the heated exhaust gas from the boiler is supplied to the condensate and feed water system as a heat source, a cooling steam supply system connected to the low temperature reheat system and adapted to supply a cooling steam to the high temperature section of the gas turbine plant, and a cooling steam recovery system connected to the high temperature section for recovering the cooling steam after cooling the high temperature section to an intermediate stage of an intermediate turbine of the steam turbine plant. The power generation plant further includes a bypass system connected to the cooling steam recovery system for bypassing the cooling steam from the cooling steam recovery system to a condenser of the condensate and feed water system and includes a secondary cooling steam recovery system for joining the cooling steam after the cooling together with a turbine extraction steam supplied from a steam turbine section of the steam turbine plant to the condensate and feed water system.
REFERENCES:
patent: 4507914 (1985-04-01), Rice
patent: 5471832 (1995-12-01), Sugita et al.
Kabushiki Kaisha Toshiba
Kamen Noah P.
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