核电站更衣室通风系统异常报警分析

Analysis on the Alarm of the Abnormal Ventilation System in Changing Room of Nuclear Power Plant

更衣间通风系统温度控制是通过一组可编程控制器(PLC)实现的,PLC通过调控加热器启停及冷却水阀门开度调节温度,控制系统中温度开关或冷却水阀门的异常将导致温度控制异常,影响房间舒适度,产生温度报警。

The temperature control of ventilation system in changing room is realized by a set of programmable logic controller（PLC）. PLC adjusts the temperature by regulating start and stop of the heater and opening of the cooling water valve.The abnormal temperature switch or cooling water valve of the control system will cause abnormal temperature control, thus affect the comfort of the room, and produce temperature alarm.