Superheater outlet steam temperature control

Details Superheater outlet steam temperature control Superheater outlet steam temperature control

1989-04-05

1989-12-19

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60653, 122479R, F01K 1302

Patent

active

048874310

ABSTRACT:
A method and apparatus for controlling superheater outlet temperature of a steam generator utilizes a feed-forward control signal to control a spray attemperator. The feed-forward control signal is developed as a difference between a selected flow rate for steam required by a turbine operated by the steam generator, and a measured flow rate of steam from a steam drum above the steam generator.

REFERENCES:
patent: 3169374 (1965-02-01), Powell et al.
patent: 3388553 (1968-06-01), Anderson
patent: 3515102 (1970-06-01), Hamilton, Jr.
patent: 4372125 (1983-02-01), Dickenson
patent: 4418539 (1983-12-01), Wakamatsu
patent: 4776301 (1988-10-01), Dziubakowski

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