本文提出了一种新型泵结构，即在叶轮进口增设导轮，以减轻固液两相流对离心泵叶片的磨损， 达到延长叶轮使用寿命、提高泵效率的目的；并通过试验，初步验证了其可行性。 （*导轮——是本文作者自己命名的一个安装于叶轮吸入口，与叶轮一直运动的“微形开式叶轮”，其作用是引导固体 颗粒从叶轮叶片非工作面侧进人叶轮，以减轻固体颗粒对叶片工作面的磨损。） In this paper, a new type of pump structure is proposed, that is, a guide wheel is added at the inlet of the impeller to reduce the wear of the centrifugal pump blades by the solid-liquid two-phase flow so as to prolong the service life of the impeller and improve the pump efficiency. Through experiments, Its feasibility. (* Guide wheel - is named after the author himself installed in the impeller suction port, and the impeller has been moving the “micro-open impeller”, its role is to guide the solid particles from the impeller blades non-working side into the impeller to Reduce the solid particles on the blade face wear.)