为了迅速安全地排除井下炮烟,我们试制了一种简易冲击波局扇启动器,它具有成本低廉、经久耐用、搬运安装方便等优点,自1973年9月投产以来运行正常。本启动器可手动,亦可自动。动作原理见图1。炮响后冲击波开关动作,微型开关常开接点闭合,中间继电器 J_2得电并自保,时间继电器 J_s 得电,经 In order to quickly and safely eliminate underground smoke, we made a simple shock wave fan fan starter, which has the advantages of low cost, durability, easy handling and installation, since September 1973 has been operating normally. The starter can be manual, automatic. Action principle shown in Figure 1. Shock wave after the gun switch, micro-switch normally open contacts closed, the middle relay J_2 and take care of themselves, the time relay J_s have electricity, the