可编程序控制器在离子膜制碱rn工艺联锁中的应用

摘要

综述了AB可编程序控制器在离子膜制碱工艺联锁控制中的应用，实现了工艺联锁的最优控制，该系统在大庆油田氯碱厂投运两年多，运行良好，响应时间快，动作准确，免于维护，取得了较好的经济效益。%Summarized the application of PLC to ion exchange membrane alkali manufacturing technlogy interlock control and realizing optimum control of technology interlock.This system running many 2 years in Daqing oil field chlorine alkali factory.The result shows that it is quick to respond time,the action is accurate and exempting repair,and having gained the better economic benefits.