A Boiler Performance Index Analysis Method Based on Partial Incremental Factor Decomposition

Abstract

The invention discloses a boiler performance index analysis method based on partial incremental factor decomposition, which includes the following steps: (1) determining the small operation index that affects the boiler thermal efficiency according to the reverse equilibrium thermal efficiency calculation method. (2) Use the analytical theory of full increment and partial increment of functions in mathematical analysis, and use the method of factor decomposition to deduce the degree of influence of each factor on the full increment. (3) Establish a calculation model of boiler performance index inverse balance and partial increment, and use this model to analyze the influence degree of each small operating index on the boiler performance index. The method of the present invention is simple and easy to implement, easy to program, can know the process parameters when the boiler deviates from the optimal working condition in real time, quantitatively understand and grasp the influence direction and degree of influence of the change of each small index on the boiler performance index, and help the operating personnel to target the target It can deal with the weak link of boiler operation accurately, so that the boiler can always operate in the best condition.

Description

technical field [0001] The invention belongs to the technical field of energy saving of coal-fired boilers, and in particular relates to a boiler performance index analysis method based on partial incremental factor decomposition. Background technique [0002] As the main thermal equipment of coal-fired power plants, the accurate calculation and analysis of boiler thermal efficiency is the key to guide the operation adjustment of power plants and realize the economical, efficient and stable operation of units. The level of thermal efficiency of the boiler directly affects the economy of the entire thermal power unit. According to statistics, for every 1% increase in the thermal efficiency of the boiler, the efficiency of the entire generating set can be increased by about 0.3-0.4%. [0003] The equipment performance of the boiler needs to be improved through renovation and maintenance, and the controllable loss caused by improper operation can be reduced or eliminated throug...

AI Technical Summary

Problems solved by technology

When the characteristic parameters that affect the thermal efficiency of the boiler are at the optimum value, the boiler operates under the optimum working condition. If one or more characteristic parameters deviate from the optimum value, the thermal efficiency of the boiler will decrease.

Images