泵站异型前池进水流态分析与治理措施研究  

Inflow patterns and remedial measures for the irregular forebay of pump stations

作　　者：李磊 刘天顺 孙宝起 LI Lei;LIU Tianshun;SUN Baoqi(Tianjin Municipal Engineering Design&Research Institute Co.,Ltd.,Tianjin 300392,China;Tianjin Beichen Water Affairs Bureau,Tianjin 300499,China)

机构地区：[1]天津市政工程设计研究总院有限公司,天津300392 [2]天津市北辰区水务局,天津300499

出　　处：《水利建设与管理》2024年第12期23-28,共6页Water Conservancy Construction and Management

摘　　要：为解决泵站不良流态导致的水泵振动、运行效率不高的问题,基于几何相似、水流运动相似和动力相似准则建立了水工物理模型,并基于模型分析现状泵站不良流态产生的原因。结合泵站基本情况,提出了改造导流墙、新增导流墩及消涡板的改进措施。经过模型验证,措施实施后,水流条件得到改善,涡流基本消失,流速均匀度提升20%,降低了水泵振动的风险,可为其他同类泵站改造提供参考依据。To address issues of pump vibration and low operational efficiency caused by poor flow patterns in pump stations,a hydraulic physical model was established based on the principles of geometric similarity,flow motion similarity,and dynamic similarity.The model was used to analyze the causes of poor flow patterns in the existing pump station.Considering the pump station’s conditions,improvement measures were proposed,including the modification of guide walls,addition of guide piers,and installation of vortex suppressors.Model validation showed that after implementing these measures,flow conditions improved,vortex formation was nearly eliminated,flow velocity uniformity increased by 20%,and the risk of pump vibration was reduced.These findings can provide a reference for retrofitting similar pump stations.

关 键 词：异型前池 物理模型 泵站 水泵振动 涡流 

分 类 号：TV675[水利工程—水利水电工程]