Boiler control system
OwnerJoseph W. Badeaux, Jr.inventor
Life of this patent
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Abstract
Apparati and methods for controlling the distribution of steam to a number of boilers, and for optimizing the performance of a steam boiler. The distribution of steam to the boilers is controlled by a master control system in communication with the boilers, steam subheaders, steam-flow sensors, a comparator module, a summer module, a main steam-supply header, and a pressure sensor in the main steam-supply header. The performance of an individual boiler is optimized by (a) maintaining a constant steam pressure in the boiler, (b) measuring the relative humidity of the air supply for fuel combustion, and (c) supplying and controlling the amount of steam to be mixed with the air supply to optimize the combustion process.
Claims7
A control system for a steam boiler equipped with an air supply and a fuel supply for a combustion process to generate steam for the boiler, the control system comprising:
- (a) a steam back-pressure control system which maintains a constant steam pressure in the boiler;
- (b) means for measuring relative humidity of the air supply and thereby determining contribution of water vapor in the air to total air flow for fuel combustion;
- and
- (c) means for supplying and controlling amount of steam for admixture with the air supply, for opimizing the combustion process;
- the means for measuring the relative humidity of the air supply providing necessary data for determining the amount of steam for admixture with the air supply to optimize the combustion process which generates steam to be maintained at a constant pressure in the boiler by the steam back-pressure controls.
A method for optimizing the performance of a steam boiler equipped with an air supply and a fuel supply for a combustion process to generate steam for the boiler, the method comprising the steps of:
- (a) providing a steam back-pressure control system for maintaining a constant steam pressure in the boiler;
- (b) measuring relative humidity of the air supply and thereby determining contribution of water vapor in the air to total air flow for fuel combustion;
- and
- (c) supplying and controlling amount of steam to be mixed with the air supply to optimize the combustion process.
Dependencies are inferred from the claim text.