我厂工频炉冷却水的水泵房和水池远离操作台,需要专人轮班在水泵房操作和监视。遵照毛主席“自力更生”的教导,我们克服了没有现成的水位继电器的困难,自己动手利用常用的半导体时间继电器稍加改装,成功地制成了一套水位自动控制装置。后来,又对水泵房的电气加以修改,实现了工频炉冷却水在工频炉操作台附近控制的目的,经过了一年多的运行,效果良好,运行可靠,指示明显。现将该系统简述如下: I plant frequency furnace cooling water pump room and pool away from the console, you need someone shift work in the pump room and monitoring. Following Chairman Mao’s “self-reliance” teachings, we overcome the difficulty of not having a ready-made water level relay and made a few modifications to the commonly used semiconductor time relay to successfully manufacture a water level automatic control device. Later, the electric pump room to be modified to achieve the frequency furnace cooling water in the frequency furnace control station near the purpose of control, after more than a year of operation, the effect is good, reliable operation, indicating clear. Now the system is as follows: