摘要
悬空高度是箱涵式进水流道泵站设计中重要的设计参数之一。通过建立泵站水力模型，对箱涵式进水流道水泵喇叭口设计了5种不同的悬空高度，观测了不同喇叭口悬空高度下的进水流态和实测了不同悬空高度下的泵装置性能曲线。研究结果得出了箱涵式进水流道水泵喇叭口悬空高度P取（0.55-0.6）D较适宜，水流从喇叭口四周环向进水，进水均匀、平顺，水泵运行装置效率相对较高。
The suction open height is an important parameter in the design of pumping stations. According to the theses on the hydraulic models of pumping stations, the experiment on pump setting performance with five heights between the suction open and the bottom of the inlet passage has been done. Based on observing the inlet flow conditions and analyzing the data of model tests, the reasonable range P=（0.55-0.60）D about suction open heights is put forward. The conclusions are valuable in ameliorating inlet flow patterns.
出处
《中国农村水利水电》
北大核心
2009年第11期114-115,121,共3页
China Rural Water and Hydropower
关键词
泵站
箱涵式
进水流道
悬空高度
泵装置性能
pumping stations
culvert intake passage
inlet passage
suction open height
pump setting characteristics
