通用循环水冷却器延时关闭控制联动电路设计

Design of the universal time-delay circuit correlated with mainbody of power supply to close the circulating water cooler

目前许多大型仪器的循环冷却水系统 ,都没有提供相应的自动化延时关闭装置 ,给工作带来不便。经过分析 ,将主机供电系统与循环冷却水供电系统进行关联 ,设计了联动电路。实现了正常关机 ,循环冷却水系统自动延时 2 0min后关闭。既节约了工作时间 。

At present,many circulating cooling water system of scientific instruments don't have automatic time delay closing system to close the circulating water cooler. A kind of universal time delay circuit,correlated with mainbody power supply,is designed. It can delay 20～30 minutes to shut off the power supply of the cooling water system automatically after the mainbody power is off. This improvement saves the working time and increases the working efficiency.