底部进水圆形雨水泵站设计方案研究

Research on the Design Scheme of a Circular Rainwater Pump Station with Bottom Inlet Water

结合北新泾(北)雨水泵站水力模型试验,研究和分析圆形雨水泵站底部进水渠及集水池内的流态,并提出改善底部进水渠及集水池进水流态的措施。试验结果表明,采取纵、横向隔板和三层环形水平压水板的措施后,能有效地改善底部进水渠及集水池内的进水流态,减少不良流态对水泵吸水喇叭口的影响。这也为今后类似工程的建设提供了一定的经验借鉴。

Based on the hydraulic model test of Beixinjing(North)rainwater pump station,the flow patterns in the bottom inlet channel and collection tank of the circular rainwater pump station are studied&analyzed,and measures to improve the flow patterns in the bottom inlet channel&collection tank are proposed.The experimental results show that the measures of adopting longitudinal,transverse partitions&threelayer annular horizontal water pressure plates can effectively improve the inflow pattern in the bottom inlet channel&collection tank,and reduce the impact of adverse flow patterns on the water pump suction bell mouth.It also provides certain experience&reference for the construction of similar projects in the future.