引黄工程地下泵站水锤防护设计

Design on water hammer protection for underground pump station of Wanjiazhai Yellow River Diversion Project

引黄工程总干线一、二级泵站串联运行 ,设计布置D =12 0m的进、出水调压井于一级泵站进、出口 ,二级泵站进口 ,在一、二级泵站之间的 4 # 有压隧洞上设置水工建筑物作为水锤防护主要措施 ,通过系统水力过渡过程计算分析 ,验证了建筑物设计的合理性。

The type of operation in series of the No.1 and No.2 pump stations on the main line of Wanjiazhai Yellow River Diversion Project is adopted.As the main measures of water hammer protection,three surge tanks with the diameter of 12 metre each are employed ,of which two are arranged at the inlet and outlet of the pump station No.1,and one at the inlet of the pump station No.2.Besides above mentioned surge tanks,one escape well is constructed on the pressure tunnel between two pump stations for the same purpose.The reasonability of the layout of these hydraulic structures was verified by means of calculation and analysis on the procedure of hydraulic transition of this system.