摘要
通过分析高炉炼铁采用干法布袋除尘工艺的特点,在不同的工况下,炉顶压力的控制权需要在TRT静叶、净煤气减压阀组、粗煤气减压阀组三套执行器之间相互转换,提出三套执行器之间的六种切换过程,可以实现自动/半自动切换,并给出了自动切换的动作流程框图;介绍了单个减压阀组控制顶压的方法;在切换过程中,为了保证炉顶压力的稳定,指出在合适的时机前提下,通过改变三套执行器的调节器的顶压设定值,就可以改变炉顶顶压的控制权,实现转换过程中炉顶压力的稳定。
This paper demonstrates six automatic/semi-automatic switch-over processes among these three actuators with the process flow block diagram and introduces the top pressure control mode by single pressure reducing valve stand.In addition,it explains appropriate time to alter the control mode of the top pressure by selection of the top pressure set points of the regulators of the actuators in order to guarantee the stability of the top pressure during switch-over process.
出处
《工业控制计算机》
2011年第4期31-33,共3页
Industrial Control Computer
关键词
炉顶压力
TRT静叶
净煤气减压阀组
粗煤气减压阀组
BF top pressure
stationary vanes of TRT
pressure reducing valve stand of clean gas
pressure reducing stand of coarse gas
