F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
60/48
F01D 17/06 (2006.01)
Patent
CA 1086511
GOVERNING SYSTEM FOR USE IN SLIDING-PRESSURE TYPE TURBINE POWER PLANT ABSTRACT OF THE DISCLOSURE A governing system for use in a sliding-pressure type turbine power plant, in which a target level for a main steam pressure is automatically set in response to a load demand, while two or more regulating valves are controlled according to a valve-positioning signal so as to eliminate a deviation of an actual load from a load demand, whereupon a target level for the main steam pressure is corrected, based on the diviation of the actual opening from the target opening of each regulating valve, whereby the main pressure generated in a boiler is regulated to a corrected target level. This governing system includes a valve driving mechanism functioning such that all regulating valves be opened at a time in a range up to a given opening, and thereafter the regulating valves be opened one after another, commensurate to the magnitude of a control signal, after entering a range beyond the aforenoted given opening.
304363
Matsumura Jube
Sakai Akira
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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