摘要
本文介绍PC用于烧碱车间碱盐分离的控制过程,并给出了控制程序的梯形图。用PC对旧设备的控制系统进行改造,周期短、花费少,可靠性更高。
The application of PC process control to the separation of alkali and salt in caustic soda workshop is investigated, and the step ladder diagram of the control program is given. When PC is used to improve the control system of old equipment, it costs much less time and money, and the system will be of more high-reliability.
关键词
化工过程
过程控制
程序控制器
chemical process
process control
programmable controller
