远离式清污机墩对走马塘泵站进水流态的改善研究  

Study on the improvement of inflow regime in the Zoumatang Pumping Station by remote cleaning machine piers

作　　者：李明 张舒羽 孙大勇 LI Ming;ZHANG Shuyu;SUN Dayong(Shanghai Investigation,Design&Research Institute Co.,Ltd.,Shanghai 200434,China)

机构地区：[1]上海勘测设计研究院有限公司,上海200434

出　　处：《水利建设与管理》2024年第6期37-41,23,共6页Water Conservancy Construction and Management

摘　　要：受周边环境条件限制,走马塘江边泵站进水侧内引河直线段偏短,工程规划利用远离式清污机桥墩进行整流。为探讨远离式清污机墩布置对工程区水流流态的影响及效果,基于MIKE21 FM建立泵站工程二维水动力数学模型,开展水流数值模拟研究。结果表明:远离式清污机墩对水流改善效果明显,且泵站运行水位越低,水流改善效果越明显。泵站排水时,引水河弧段及直线段流速流场分布均匀,墩前流速较未布置时整体平缓,过栅流速较高,利于污物附着清理,水流经机墩整流后,进入进水池后方向与泵站垂直,无有害水流。Due to limitations imposed by surrounding environmental conditions,the straight section of the intake canal at the Zoumatang riverside pumping station is relatively short.To address this,the project plan involves using remote cleaning machine bridge piers for rectification.To investigate the impact and effectiveness of the arrangement of these remote cleaning machine piers on the flow regime within the project area,a two-dimensional hydrodynamic mathematical model of the pumping station project is established based on MIKE 21 FM,and numerical simulations of the flow are conducted.The results show that the remote cleaning machine piers have a significant improvement effect on the flow,and the lower the operating water level of the pumping station,the more pronounced the improvement effect.During drainage at the pumping station,the flow velocity field distribution in both the curved and straight sections of the intake canal is uniform,with a smoother overall flow velocity in front of the piers compared to when they are not installed,and higher velocities across the grid,facilitating the adhesion and removal of pollutants.After passing through the rectifying machine piers,the flow enters the intake pool perpendicular to the pumping station,with no harmful flow patterns.

关 键 词：流态分析 数值模拟 走马塘泵站 短引河 清污机墩 

分 类 号：TV212[水利工程—水文学及水资源]