Air storage gas turbine power station with fluidized bed firing

Details Air storage gas turbine power station with fluidized bed firing Air storage gas turbine power station with fluidized bed firing

1985-07-11

1986-12-23

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

60 39464, 60727, F02C 326

Patent

active

046304363

ABSTRACT:
The compressor of the coal-fired air storage gas turbine power station is connected by a main air duct to a fluidized bed combustion chamber and an air storage cavern. There is one clutch in each case respectively between the compressor and the electrical machine and between the latter and the turbine. In order to maintain the fluidized bed firing even in the case of pure pumping operations, a low load air duct with a shut-off unit is provided, the low load air duct connecting a pressure stage of the compressor to the main air duct at a position before the fluidized bed combustion chamber. During pumping operations, the fluidized bed continues to be fired at low load by closing a throttle unit in the section of the main air duct leading to the fluidized bed combustion chamber with simultaneously open shutoff units respectively in the section of the main air duct leading to the air storage cavern and in the low load air duct. The combustion gases generated in the fluidized bed combustion chamber drive the turbine which, by means of the clutch designed as an overrunning clutch, supports the electrical machine, operating as a motor, in driving the compressor.

REFERENCES:
patent: 3866058 (1975-02-01), Lenssen
patent: 3869862 (1975-03-01), Dickey
patent: 4306411 (1981-12-01), Zoll
patent: 4441028 (1984-04-01), Lundberg
patent: 4522024 (1985-06-01), Zaugg
patent: 4523432 (1985-06-01), Frutschi
U.S.-ASME Paper 80-GT-160; Mar. 1980.
Tech. Rundschau Sulzer, Bd. 63; Apr. 1981.

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