介绍美国Baker公司对电潜泵叶导轮设计的改进,缩小了离心泵下止推垫片直径,将下止推垫片设置在与腐蚀性流体接触机会更少的位置。由于缩小止推垫片直径、减少其与导轮接触的面积及轴向推力所产生的摩擦,从而降低用来克服摩擦的扭矩,增加了泵效。 Describes the improvements made by American Baker company to the design of electric submersible pump impeller, reduces the diameter of the lower thrust washer of the centrifugal pump and sets the lower thrust washer in the position of less contact with the corrosive fluid. As a result of reducing the diameter of the thrust washer to reduce the area of ​​contact with the guide wheel and the axial thrust generated by the friction, thereby reducing the torque used to overcome friction, an increase of pump efficiency.