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我矿于1979年11月份试制成功了光电自动控制风门,它具有体积小、重量轻、结构简单、维修方便等优点,经过一段使用证明效果良好,深受井下作业人员的欢迎。现将其动作原理介绍如下: 风门与通风机联锁,原理见图。开通风机时先合上GK_1,按启动按钮QA,使QC_1交流接触器闭合并自保,通风机开始起动。风门控制电源通过QC_1的常开辅助触点和ZJ_1的常闭触点使QC_2有电,电磁铁JCT吸
I mine in November 1979 trial success photovoltaic photoelectric control damper, it has the advantages of small size, light weight, simple structure, easy maintenance, after a period of use proved good effect, well downhole operators welcome. Now the principle of its movement as follows: Door and fan interlock, the principle shown. Turn on the fan and close the GK_1, press the start button QA, the QC_1 AC contactor closed and self-protection, the fan starts. The damper control power supplies QC_2 through the normally open auxiliary contacts of QC_1 and the normally closed contacts of ZJ_1, the electromagnet JCT suction