Valve control system for power generating plants

Details Valve control system for power generating plants Valve control system for power generating plants

1987-11-10

1989-06-27

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 3001, 251 62, 60431, 91454, F16K 31124, F16K 506

Patent

active

048422444

ABSTRACT:
In a steam generating plant having a main steam line and a pivotally actuated valve movable between open and closed positions for controlling the flow of steam in the main steam line, a system for operating the main steam line valve comprising a spring assembly for biasing the valve pivotally into the closed position, fluid actuated means for urging the valve pivotally into the open position against the biasing action of the spring assembly and means for supplying fluid under pressure for the fluid actuated means, the fluid supply means including a pump operatively connected to the fluid actuated means and at least one exhaust valve operatively connected to the pressure end of the pump.

REFERENCES:
patent: 4500066 (1985-02-01), Trassl
patent: 4553731 (1985-11-01), Carpenter

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