Boiler control system

Details Boiler control system Boiler control system

1978-11-24

1980-07-22

Gill, James J.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60667, F01K 322

Patent

active

042133041

ABSTRACT:
A method and means for controlling the throttle pressure of a fuel fired drum type boiler by controlling the fuel input to the boiler so as to equalize the boiler demand, calculated as the product of a quantity proportional to the rate of energy output from the boiler at the existing throttle pressure times the ratio of the desired throttle pressure to the existing throttle pressure, and the heat released to the boiler by the fuel, calculated as the sum of a quantity proportional to boiler output and the measured rate of change of drum pressure.

REFERENCES:
patent: 3802189 (1974-04-01), Jenkins
patent: 4064699 (1977-12-01), Martz
patent: 4174618 (1979-11-01), Jenkins et al.

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