In order to improve the desulfurization efficiency and reduce bed temperature fluctuations in circulating fluidized bed furnaces,this paper first adopts a feedback controlled desulfurization combustion system.In response to the problems of large bed temperature fluctuations,the bed temperature change rate and CaO content in the furnace are added to optimize it,and a feedforward feedback based optimization control system is obtained.After comparative simulation,compared with the measured data,the optimized control system can quickly reduce the SO2 content and its fluctuation at the furnace outlet,and effectively control the bed temperature change,improve the bed temperature fluctuation,and verify the good desulfurization effect and low cost of the optimized control system.
关键词
循环流化床锅炉/脱硫效率/PID控制器/反馈脱硫控制
Key words
circulating fluidized bed boiler/desulfurization efficiency/PID controller/feedback desulfurization control
维普
万方数据