Liquid enters the primary impeller through an inlet of the pump casing, foams mixed in the liquid are crushed and separated out under the action of the impeller.
液体通过泵壳体进口进入主叶轮，在叶片的作用下把混合在液里中的泡沫打碎并分离出来。
2
The outer casing superior surface, forms the configuration of the suction inlet, are inclined to the downwards.
形成吸入口外形的外壳上表面为朝前向下倾斜的状态，上表面有反射部分。
3
The experiments of an oil film visualization technique are accomplished on the surfaces of impeller, inlet segment and partial meet face between inlet segment and volute casing.