Process for steam cooling a power turbine

Details Process for steam cooling a power turbine Process for steam cooling a power turbine

1985-01-16

1986-02-25

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 39141, 60 39182, F02C 716, F02C 726, F02C 618

Patent

active

045719357

ABSTRACT:
A reheat gas and double reheat steam turbine combined cycle is provided in which the outer shell confining the blading of the power turbine and the exhaust portion of the power turbine are cooled with steam extracted from the steam cycle. The coolant steam is extracted from a high pressure steam turbine, used to cool the turbine outer shell, readmitted for expansion in the steam turbine, the lower pressure steam is extracted to cool the exhaust portion of the power turbine and readmitted to the steam turbine and condensed.

REFERENCES:
patent: 1708402 (1929-04-01), Schilling
patent: 2447696 (1948-08-01), Forsyth
patent: 2586025 (1952-02-01), Godfrey
patent: 2801821 (1957-08-01), Burger
patent: 3600890 (1971-08-01), White et al.
patent: 3729930 (1973-05-01), Williams
patent: 3860359 (1975-01-01), De Feo
patent: 3966354 (1976-06-01), Patterson
patent: 4117669 (1978-10-01), Heller
patent: 4257222 (1981-03-01), Schwarz
patent: 4333309 (1982-06-01), Coronel

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