Steam turbine pressure rate limiter

Details Steam turbine pressure rate limiter Steam turbine pressure rate limiter

1983-07-13

1984-10-02

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60646, F01K 1302

Patent

active

044740123

ABSTRACT:
A steam pressure rate limiter for a steam turbine system reduces the setting of a steam control valve when a rate of decrease in steam pressure is detected which exceeds a threshold value of rate of decrease. A floor on control of the steam control valve is enforced in order to maintain a predetermined amount of steam flow to the turbine thereby to provide for cooling of the turbine.

REFERENCES:
patent: 4203297 (1980-05-01), Sakai et al.
patent: 4297848 (1981-11-01), Silvestri, Jr.
patent: 4412780 (1983-11-01), Collins et al.

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