Impeller pump installed in the Shell 2, 3 and retention in the shaft, the shaft driven directly by the motor.

叶轮安装在泵壳2内，并紧固在泵轴3上，泵轴由电机直接带动。

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Impeller installed in the pump shell 2, and fastening on the shaft 3, shaft driven by the motor directly.

叶轮安装在泵壳2内，并紧固在泵轴3上，泵轴由电机直接带动。

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In consideration of magnetic driven sand washing apparatus, an optimal design plan for axial-flow impeller is put forward for improving the hydraulic performance of blades.

针对一种磁力驱动的循环冲沙装置，提出了轴流式叶轮优化方案以提高叶轮水力性能。

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