甲醇预精馏过程塔釜温度控制系统应用研究  

Research on the Application of Temperature Control System in the Tower Kettle of Methanol Pre-distillation Process

作　　者：鲁先顺 王雪晶[2] 魏庆禹 曹玉波[1] LU Xianshun;WANG Xuejing;WEI Qingyu;CAO Yubo(School of Information and Control Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,China;Synthetic Resin Factory,PetroChina Jilin Petrochemical Company,Jilin City 132021,China)

机构地区：[1]吉林化工学院信息与控制工程学院,吉林吉林132022 [2]吉林石化公司合成树脂厂,吉林吉林132021

出　　处：《吉林化工学院学报》2023年第11期65-68,共4页Journal of Jilin Institute of Chemical Technology

摘　　要：针对甲醇预精馏过程进料量变化经常对塔釜温度造成扰动的问题,设计了串级加前馈控制方案,采用STEP7软件编制了PLC控制程序,测试结果表明,前馈-串级控制方案能够有效解决传统控制方式下的进料干扰问题,对于生产现场实际塔釜温度的平稳控制具有一定的参考意义。Acascade feedforward control scheme was designed to address the disturbance caused by changes in feed rate during methanol pre-distillation process,and a PLC control program was written using STEP7 software.The test results showed that the feedforward cascade control scheme can effectively solve the feed interference problem under traditional control methods,and has certain reference significance for the stable control of actual tower and kettle temperature in production sites.

关 键 词：甲醇预精馏 温度 前馈-串级控制 PID PLC 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]