Weight Calculation and Operation Adjustment of Factors that Influence Boiler Efficiency

摘要

For the problem that factors influencing boiler efficiency are complex and have strong coupling, Firstly, artificial neural network was used to establish the model of boiler efficiency, sensitivity analysis based on the model was introduced to calculate the sensitivity coefficient, which reflecting the weights of input parameters on output indicators. According to the orders of weights, the main factors were chosen to be paid more attention and adjusted. Secondly, considering the effects of power and ambient temperature, the target-value of parameters in various conditions were obtained based on fuzzy c-means clustering algorithm, and were introduced as accordance for operation adjustment. The boiler efficiency of 600MW coal-fired boiler in Tashan plant was studied, the results indicate that the method can improve the economy of boiler effectively, guide operators to improve the pertinence of operation adjustment and have a certain significance in making the direction of operation adjustment clear.