利用高速摄影对杂质泵离心叶轮内固体颗粒的运动规律进行了试验研究。试 验中采用多种方案进行了比较，分析得出：颗粒的密度和粒径越大，颗粒运动会越趋于 叶片工作面。试验数据的统计结果为叶轮叶片设计参数的选择提供了基础。 Experiments were carried out to study the motion of solid particles in the centrifugal impeller of impurity pump by high-speed photography. Tests using a variety of programs were compared, analysis shows that: the greater the density and particle size of particles, the particle movement will tend to the blade face. The statistical results of the test data provide the basis for the selection of the design parameters of the impeller blades.