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利用一种真空罐给离心泵灌引水,系由充满水并与水源相联通的密封容器构成.这种容器装设有两根管道2和8,其中管道2装有闸阀3,其一端接在容器的底部,另一端插入进水池中,装有闸阀9的管道8将容器的顶部和离心泵的泵体10相连.关闭闸阀3和9,开启闸阀7,可通过管道6由外部系统(管网或贮水车)给真空罐4充满水,然后关闭闸阀7。
A vacuum tank is used to inject water into the centrifugal pump, which is composed of a sealed container filled with water and communicated with a water source. The container is provided with two pipes 2 and 8, wherein the pipe 2 is provided with a gate valve 3, one end of which is connected to The bottom of the vessel is inserted into the pool at the other end, and a pipe 8 equipped with a gate valve 9 connects the top of the vessel with the pump body 10 of the centrifugal pump. The gate valves 3 and 9 are closed, the gate valve 7 is opened, and the pipeline 6 can be used by an external system (tube The net or tanker fills the vacuum tank 4 with water and closes the gate valve 7 .