该文对目前研究较少的长距离浆体输送管道串联泵系统的停泵水锤进行了较详细的计算研究。基于工程实际情况,采用特征线法描述了这种瞬变过程,并结合串联泵系统的边界条件分别对实际工程中的无阀、普通阀和缓闭阀管路进行了计算和比较分析。得出了缓闭阀管路比无阀和普通阀管路更有利的结论,并给出对停泵水锤综合防护的相关建议。 In this paper, a more detailed calculation and study on the pump-stopping water hammer of the tandem pumping system for the long-distance slurry pipeline in the present study is carried out. Based on the actual engineering conditions, this transient process is described by the characteristic line method, and the valve-free, normal valve and slow-closing valve pipelines in the actual project are calculated and compared respectively with the boundary conditions of the tandem pump system. The conclusion is drawn that the slow-closing valve pipeline is more favorable than the valve-less and ordinary valve pipeline, and gives some suggestions about the comprehensive protection of the water hammer of the stopping pump.