烟气脱硝控制系统研究分析

Study on the control system of Flue Gas Desulfurization

随着社会的发展,国家对环境保护要求日益严格,燃煤电厂烟气脱硫及脱硝系统也在不断增加。在日益发展的脱硝技术中,控制系统的重要性越来越突出,其优越性直接关系到脱硝效率和脱硝质量。针对目前较流行的前馈环控制系统、控制反应器出口NOX排放的控制系统以及基于人工智能和自适应神经网络的先进控制系统进行对比分析,讨论了他们的优缺点及其发展趋势,并对今后燃煤电厂进行脱硝系统建设时控制方案选型提出一些建议。

With the development of the society,researches on the system of flue gas desulfurization and denitration has also been made in the coal-fired power plant.The importance of the control system is becoming more and more important with the development of denitration technology,and its advantages are directly related to the denitration efficiency and denitration quality.Several control systems included feed-forward loop control system,control the outlet of reactor NOX emissions control system,and the advanced control system based on artificial intelligence and adaptive neural network were analyzed and discussed.Besides,the advantages and disadvantages of their development trend were also discussed.In the last,some suggestions for the selection of control system for the of flue gas desulfurization were made.