摘要
介绍了焦炉工艺流程和压力控制系统结构,并基于过程机理推导了集气管压力变化过程的数学模型,研究表明其结构是稳定的,参数是时变的.解耦控制的实现、煤气交换时采用的前馈控制以及模型参数的在线修正对于抑制较大扰动和改善调节品质起到了关键作用.最后介绍了实现该过程的DCS网络结构,控制效果显示其调节性能和稳定性符合现场工艺的要求.
The technical flow of coke furnace and the pressure control system structure are introduced. The mathematical model based on process mechanism of gas-collector pressure is derived. The research shows that the model structure is stable and the value is time-variant. The realization of coincidence dissolving and feed-forward control while in a state of gas-exchange and on line＇s modification of model value play an important role in restraining large disturbance and improving regulating quality. And finally the net work structure of how to realize the process is recommended. The control result indicates that the regulating performance and stability meet the needs of local technical demands.
出处
《煤炭转化》
CAS
CSCD
北大核心
2007年第1期26-30,共5页
Coal Conversion
关键词
焦炉
集气管压力
数学模型
耦合
coke furnace, gas-collector pressure, mathematical mode, coincidence
