超临界循环流化床锅炉在节能减排中的技术特点分析

Analysis of Technical Characteristics of Supercritical Circulating Fluidized Bed Boiler in Energy Saving and Emission Reduction

分析了循环流化床燃烧技术适合于超临界蒸汽参数的特点及CFB机组的负荷调节特性,指出CFB机组由于其自身的特点,在目前的自动控制水平下,其负荷响应速度比较慢,还不能满足电网要求的AGC速率;但是CFB机组也具有适合参与电网调峰的负荷调节范围宽、可以两班制运行的特点。

The characteristics of the circulating fluidized bed（CFB） combustion technology suitable for supercritical steam parameters were analyzed,as well as the load regulation characteristics of CFB.The load response rate of the CFB unit was proposed to be relatively slow as its own characteristics in the current automatic control level,which could not meet the grid requirement of AGC rate;however,the CFB unit still had the wide load regulation range and two shifts operation characteristics,which were suitable for participating in the grid peak load regulation.