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水泵在吸水管底部装有底阀,或者装有抽气装置。底阀在使用过程中经常发生故障,维护不方便。水泵的盘根处漏水、漏气也会引起不能自吸。若使用喷射器抽气,须有0.3MPa以上的压力水,使用也不方便。我们在水泵吸水管处加装了一个三通,较好地解决了上述问题,见图1。 三通的一端接水泵吸水管,一端通过闸阀10接水泵出水端的回水管1(开机后利用管中存水经喷嘴11产生射流水),另一端接水源吸水管7。开机顺序为:①打开排放管闸阀5;②启动电动机;③打开阀门10。压力水
Pump at the bottom of the suction pipe fitted with a bottom valve, or equipped with suction device. At the end of the valve in the process of frequent failure, maintenance inconvenient. Water pump packing leaks, can cause gas leak can not be self-absorption. If you use the ejector suction, there must be more than 0.3MPa pressure water, use is not convenient. We installed a water pipe in the pump tee, a better solution to the above problems, shown in Figure 1. One end of the tee is connected with a water suction pipe of the water pump, one end of the tee is connected with a water return pipe 1 at the water outlet end of the water pump through a gate valve 10 (water is jetted through a nozzle 11 after being turned on), and the other end is connected with a water suction pipe 7. Boot sequence: ① open drain valve 5; ② start the motor; ③ open the valve 10. Pressure water