Control system for fluid heated steam generator

Details Control system for fluid heated steam generator Control system for fluid heated steam generator

1984-05-29

1985-07-02

Favors, Edward G.

Liquid heaters and vaporizers

Feeders

Automatic

122451S, F22D 526

Patent

active

045261369

ABSTRACT:
A control system for controlling the location of the nucleate-boiling region in a fluid heated steam generator comprises means for measuring the temperature gradient (change in temperature per unit length) of the heating fluid along the steam generator; means for determining a control variable in accordance with a predetermined function of temperature gradients and for generating a control signal in response thereto; and means for adjusting the feedwater flow rate in accordance with the control signal.

REFERENCES:
patent: 2800887 (1957-07-01), Profos
patent: 3004529 (1961-10-01), Argersinger et al.
patent: 3029197 (1962-08-01), Untermyer
patent: 3126053 (1964-03-01), Brunner
patent: 3275524 (1966-09-01), Williams
patent: 3287229 (1966-11-01), Peters
patent: 3296083 (1967-01-01), Haake et al.
patent: 3561406 (1971-02-01), Rupprecht

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