A method and device for quantitatively calculating a furnace biasing direction and degree of a coal-fired unit

Abstract

The application discloses a kind of coal-fired unit furnace partial burning direction and degree quantitative calculation method and device, it is related to coal-fired unit boiler combustion control technical field, the method of the present application includes: acquisition coal-fired unit furnace multi-source operation data;After the pre-processing of multi-source data, construct furnace three-dimensional temperature-flue gas concentration coupling field model;Based on the feature parameters of each monitoring partition of coupling field model extraction furnace, partial burning direction is determined by vector composition method;Dynamic correction coefficient is introduced to construct partial burning degree quantitative model, and the partial burning degree quantitative value is calculated;Combining unit operating parameter, partial burning direction and degree result are dynamically corrected, and accurate quantitative result is output.The present application realizes the three-dimensional accurate determination of furnace partial burning direction and the multidimensional dynamic quantization of degree, adapts unit variable operating condition, effectively improves the combustion efficiency of coal-fired unit, reduces NO x Emission and furnace local overheating risk, meet the demand of green and low-carbon development, can be widely applied to coal-fired unit boiler operation optimization.

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