Combustion online optimizing method of boiler

Abstract

The invention discloses a combustion online optimizing method of a boiler. The combustion online optimizing method comprises the following steps of: monitoring real-time operation parameters of the boiler through a unit, recording and determining the real-time operation parameters; then comparing the real-time operation parameters, providing an optimal value curve guidance; then establishing a combustion characteristic optimization mathematical model of the boiler by adopting an artificial intelligent neutral network technology; optimizing the combustion characteristic of the boiler by using a genetic algorithm or simulated annealing method; and finally, storing the combustion optimization parameter as a long-term trend data, and carrying out accumulated monitoring and storing on a parameter with an accumulation effect. Through the mode, according to the invention, the economy of the operation of the boiler can be improved, the NOx discharge can be reduced by 20-30 percent after the combustion optimization technology is adopted, the exhaust gas temperature is reduced, the unburned carbon in flue dust is lowered, the efficiency of the boiler is increased, various kinds of loss are reduced, and the efficiency of the whole unit is increased.

Description

technical field [0001] The invention relates to the field of boiler information control, in particular to an online optimization method for boiler combustion. Background technique [0002] Most of the power plants in my country use coal as the main fuel. In recent years, due to the tight supply of coal and the frequent changes in boiler coal combustion, the actual coal type often deviates from the design value, which will directly affect the economy and safety of boiler operation. . [0003] There are many imperfections in the existing coal supply and coal blending system. In addition, it is difficult to guarantee the quality of coal used in power stations. At the same time, with the commissioning of supercritical and ultra-supercritical units, higher requirements are put forward for boiler combustion operation. [0004] The combustion plan of the boiler is an important technical means for energy saving and emission reduction, which can ensure the safe, stable and economical...

AI Technical Summary

Problems solved by technology

[0002] Most of the power plants in my country use coal as the main fuel. In recent years, due to the tight supply of coal and the frequent changes in boiler coal combustion, the actual coal type often deviates from the design value, which will directly affect the economy and safety of boiler operation.

[0003] There are many imperfections in the existing coal supply and coal blending system. In addition, it is difficult to guarantee the quality of coal used in power stations. At the same time, with the commissioning of supercritical and ultra-supercritical units, higher requirements are put forward for boiler combustion operation.