Method of operating a combined gas and power steam plant

Details Method of operating a combined gas and power steam plant Method of operating a combined gas and power steam plant

1997-11-26

1998-11-24

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 39182, F02C 618

Patent

active

058392696

ABSTRACT:
In a method of operating a power station plant, which consists of a gas-turbine group (I), a steam-generating stage (II) consisting of a waste-heat steam generator (15), and a steam cycle (III), a liquid quantity increased above 100% circulates in a heat-exchange stage (15a), operating in the low temperature range, of the waste-heat steam generator (15). The portion above 100% of this liquid quantity is diverted at the end of said heat-exchange stage (15a) and is evaporated in at least one pressure stage (26). Steam (37) arising herein is then fed to a steam turbine (17) at a suitable point. A still hot liquid quantity (36) from the pressure stage (26) is fed into a feed-water tank and deaerator (22), and steam (33) arising herein is fed to a further steam turbine (18) at a suitable point.

REFERENCES:
patent: 4424668 (1984-01-01), Mukherjee
patent: 4501233 (1985-02-01), Kusaka
patent: 5313782 (1994-05-01), Frutschi et al.
patent: 5369950 (1994-12-01), Bruckner et al.
patent: 5386685 (1995-02-01), Frutschi

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