南水北调东线工程有多座泵站采用灯泡贯流泵机组,淮阴三站和蔺家坝泵站是先期实施的泵站,均采用了国际合作技术,而且结构型式完全不相同的灯泡贯流泵。根据两座泵站采用的不同结构型式,重点介绍了机组的结构特点和水力性能,分析了不同型式的优势以及在未来泵站建设中的应用前景和需要进一步研究的问题。

The bulb tubular(propeller)pumps will be installed in many pumping stations of East Route Project of South-to-North Water Diversion in China,including Linjiaba Pumping Station and Huaiying 3rd Pumping Station.In these two pumping stations,international cooperation technologies and different structural units have been used.The structural features and hydraulic performances are introduced mainly and the advantages of two bulb tubular pumps are analyzed in the paper.Further,the applicable prospects and some issues needed to be improved in different structural bulb pumps are put forward.