Steam cycle for combined cycle with steam cooled gas turbine

In a combined cycle system including a gas turbine (12), a steam turbine (20) and a heat recovery steam generator (32), wherein gas turbine exhaust is used in the heat recovery steam generator (32) for reheating steam for the steam turbine (20), an improvement wherein steam is extracted from the hea...

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Bibliographic Details
Main Authors TOMLINSON; LEROY O, SMITH; RAUB W
Format Patent
LanguageEnglish
Published 09.05.1995
Edition6
Subjects
AIR INTAKES FOR JET-PROPULSION PLANTS
BLASTING
COMBUSTION ENGINES
CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
ENGINE PLANTS IN GENERAL
ENGINE PLANTS NOT OTHERWISE PROVIDED FOR
ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
GAS-TURBINE PLANTS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ACCUMULATORS
STEAM ENGINE PLANTS
STEAM ENGINES
WEAPONS
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Summary:In a combined cycle system including a gas turbine (12), a steam turbine (20) and a heat recovery steam generator (32), wherein gas turbine exhaust is used in the heat recovery steam generator (32) for reheating steam for the steam turbine (20), an improvement wherein steam is extracted from the heat recovery steam generator (32) at a location where steam pressure is highest, conducted to the gas turbine (12) for cooling hot gas turbine parts, and returned to the steam turbine (20) at the point of highest pressure admission.
Bibliography:Application Number: US19930145633