仪表气源干燥控制系统

The Application of PC in Meter-Used Drying Air Control Systems in a Power Plant

以可编程序控制器（ＰＣ）为核心部件，对火电厂仪表气源干燥控制系统进行了设计。简述了仪表气源干燥控制系统的组成、工作原理及所实现的功能。给出了按步进式控制原理构成的系统的梯形图和程序表。实际运行表明：该系统具有安全、可靠、控制功能完善、容易维护、操作方便、易于推广等特点。

A meter-used drying air control system in a power plant has been designed, which uses PC as its main part. Practical operation shows that the control system is featured with safety,reliability, complete control functions, good extension,easy maintenance,convenient operation and will be widely used.