摘要
乙醇精馏控制系统是将纯度为95%的乙醇经三重精馏生成无水乙醇。本文采用OMRON公司CS1PLC及其内置回路控制板与模拟量单元构建过程控制系统,利用CX-Process Tool软件完成模块流程图组态后下载到回路控制板中运行,实现了对精馏塔温度、液位及流量的自动控制。结果表明:该系统使用方便,具有良好的动态调整性能,极大提高了系统的稳定性、可靠性。
The ethanol rectification control system is the plant in which 95% ethanol is thrice rectified to make it anhydrous ethanol. Process control system consisting of loop control board inserted in OMRON＇s CS1 PLC and analog units is established and used to control ethanol rectification. Furthermore, module flow charts are developed by CX-Process Tool and download to LCB to control temperature,level and flux of rectification tower. The result shows the system is easy to use and has the dynamic adjustment function efficient, its reliability and stability are improved dynamic.
出处
《科学技术与工程》
2009年第6期1628-1632,共5页
Science Technology and Engineering
关键词
乙醇精馏
串级调节
PID控制
LCB模块
ethanol rectification series-wound adjustment PID control LCB module
