Steam generator control systems

Details Steam generator control systems Steam generator control systems

F - Mech Eng,Light,Heat,Weapons

22

B

341/12

F22B 35/00 (2006.01) F01K 23/10 (2006.01)

Patent

CA 1221754

-25- Abstract of the Disclosure Steam Generator Control Systems Control systems (or controllers) for once through, unfired stream generators (or boilers) which control a single parameter -- the feedwater flow to the boiler -- in accord with an energy or enthalpy balance between the hot gases supplied to the boiler and the steam generated in it. These control systems have a predictive mode of feedwater control and, optionally, an operator selectable, feedback mode to compensate for drifts in the predictive mode. Other corrections may also be made, and predictive and corrective flow splits can be provided to obtain maximum efficiency when the control system is utilized to regulate the operation of a dual pressure boiler.

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