PRESENT SITUATION OF BED-TEMPERATURE CONTROLLING FOR CFB BOILERS AND IMPROVING MEASURES THEREOF[J]. Thermal power generation, 2003, (3): 51-52. DOI: 10.19666/j.rlfd.2003.03.016.
循环流化床锅炉床层温度控制现状与解决措施
摘要
对CFB锅炉床层温度控制现状进行了调研
指出现存的控制方式可调幅度过小
不能有效地调节CFB床温。经研究分析
提出建立 2入 2出的多变量控制系统
当床温偏差较小时
只调节一、二次风配比 ;当较大时
可同时调节给煤量和风量
以达到调节床层温度的目的。
Abstract
An investigation and study on the present situation of bed-temperature controlling for CFB boilers have been performed. It is pointed out that the existing controlling mode has too small adjustable amplitude
can’t effectively regulating the bed-temperature of CFB boilers. Through study and analysis
a recommendation of establishing a two-input and two-output multi-variable controlling system has been put forward
then
while the deviation of bed-temperature is comparatively small
only the match ratio of primary and secondary air is adjusted; while the said deviation is comparatively large
the coal-feeding amount and air quantity can simultaneously be adjusted.