Method for controlling steam turbine and device therefor in comp

Details Method for controlling steam turbine and device therefor in comp Method for controlling steam turbine and device therefor in comp

1974-11-15

1976-11-09

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

60 3903, 415 17, F02C 702

Patent

active

039902307

ABSTRACT:
In a plant of a composite cycle which includes a steam turbine having a high pressure portion and a low pressure portion, a gas turbine, and a waste heat boiler having heat exchangers producing high pressure steam and low pressure steam to be fed to the steam turbine, by the use of exhaust gas from the gas turbine as a heat source; there are provided steam valves on steam passages through which steam is fed from the heat exchangers of waste heat boiler to the steam turbine; a detecting device for detecting the condition of steam flowing into the steam valve; and another detecting device for detecting the r.p.m. of the steam turbine; whereby the opening and closing of the steam valves are controlled by means of a selecting device which preferentially selects either of signals from the aforesaid detecting devices to adjust the quantity of steam to be fed to the steam turbine for controlling the steam turbine.

REFERENCES:
patent: 2095860 (1937-10-01), Ericson
patent: 2098803 (1937-11-01), Harris
patent: 2111420 (1938-03-01), Ericson
patent: 3325992 (1967-06-01), Sheldon
patent: 3342195 (1967-09-01), Wagner
patent: 3603695 (1971-09-01), Yokota
patent: 3669559 (1972-06-01), Sakamoto

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