南水北调二级坝泵站泵型研究

Research on the Pump Type of Two-stage dam Pump-station for South-to-North Water Transfer Project

针对南水北调东线二级坝泵站运行水位低、站上和站下水面辽阔的特点,分别对水泵装置型式、水泵传动方式、机组调节运行型式进行了分析比较,通过计算机流道数值模拟计算,对贯流泵灯泡体前置与后置进行对比分析、对出水流道圆变方段位置进行了优化设计。

Due to the characteristics of the two-stage dam pumping station for the Eastern Route of South-to-North Water Transfer Project, which works under low water level and wide water surface of its up and down stream, the pump system type, pump transmission style and unit regulation form are compared and analyzed respectively. Numerical simulation on flow passage is presented in order to determine where to put the bulb unit of tubular pump, and the situation where the outlet flow passage transifer from roundness to squareness is also designed with high grade.