论文部分内容阅读
我们试制一种水泵自控装置,它既能达到水塔水位自动控制,又能在水井有水,水泵或电机发生故障不上水时,自动切断电源,并发出警报,又根据我矿水井与水塔较远和有时缺水等情况,如装一种水井缺水时,不等底阀露出水面就自动停泵,等水井有水时与水塔缺水时,泵又能自动上水,既能保证安全,又能在各种情况下完全自动控制。减去司泵工后,经几个月试验,运行良好,该控制原理如图所示:(1)水塔水位控制:在水塔内分别引入三根电极(17.18.19)如水位低于18时,17.19不通,T_1得不到偏流而截止,继电器停,1ZJ释放,电源2通过1SJ常闭或2ZJ常开与1ZJ常闭,CZJ吸合,又经过CZJ常开接点、线路5进入水井控制部分,如果水井有水3ZJ吸合,经过3ZJ常开接点电磁开关XC通电,水泵开始打水,同时17.18中间的常闭接点CZJ断开,水位升至18时,继电器1J仍处于释放状态,电机继续运转,当水位
We trial a water pump automatic control device, it can achieve the automatic control of water tower water level, but also in the water wells, pumps or motor failure does not water, automatically cut off the power and alarm, and according to mine pit and water tower more Far and sometimes water shortages, such as installed a well water shortage, the end of the valve does not wait for the water to automatically stop the pump, and other well water and water tower water, the pump can automatically Sheung Shui, both to ensure safety , But also in all circumstances fully automatic control. Subtract the Division pump workers, after a few months of testing, running well, the control principle shown in Figure: (1) water tower water level control: the introduction of three electrodes in the water tower (17.18.19), such as water level below 18, 17.19 barrier, T_1 can not get bias current and the deadline, the relay stops, 1ZJ release, power 2 through 1SJ normally closed or 2ZJ normally open and 1ZJ normally closed, CZJ pull together, and after CZJ normally open contacts, line 5 into the well control section, If the wells have water 3ZJ pull together, after 3ZJ normally open contact solenoid switch XC energized, the pump began to fetch water, while the middle of the 17.18 normally closed contacts CZJ disconnected, the water level rose to 18, the relay 1J is still in the release state, the motor continues to run When the water level