针对东湖泵站水泵叶轮淹深不足、排涝标准降低的主要问题，在分析兴建外排泵站、增建潜水电泵站和加装导轮3种改造方案的基础上，着重研究了在轮流泵叶轮前加装导轮的可行性，以使水泵在较低的内湖水位下也能运行。加装导轮后，增大了内湖调蓄容积，提高了泵站排涝标准。 In view of the main problems that the impeller of the Donghu Pumping Station is not fully submerged and the standard of drainage is reduced, on the basis of the analysis of three kinds of reconstruction schemes of constructing the efflux pump station, the submersible pump station and the installation of the guide pulley, Feasibility of the guide wheel before the impeller, so that the pump in the lower lake water level can also run. After the installation of guide wheel, increased storage capacity within the lake, raising the drainage standards for pumping stations.