核电站除盐水PLC控制系统设计

Design of Desalted Water PLC Control System in Nuclear Power Plant

通过对核电站除盐水生产及分配系统工艺流程的研究,提出了除盐水使用PLC控制的自动控制方案。选用西门子S7-400型PLC,针对国内某在建核电站除盐水生产及分配系统,设计了一套控制系统,实现了工艺上的控制要求。并介绍了其控制系统的硬件选型、组态,控制方案以及一些特殊反馈信号的处理方法,为以后核电站除盐水控制系统的设计打下了基础。

By doing research in process of nuclear power plant desalted water produce and distribute system,this paper draws up an automatic PLC control method for desalted water produce,and selects the SIEMENS S7-400 PLC,designs a whole control system for desalted water system for a building nuclear power plant in state,and the process demand.This paper also introduces the selection of hardware,software configuration control plan and some handling method for special retrieved signal.