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Experimental Study on the Flow Pattern Modifying in the Fore Bay of large Urban Side Inflow Pumping Stations

机译：大城区流入泵站前湾流动模式改变的实验研究

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The flow pattern in the fore bay and sump of large urban side inflow pumping station is worse which causes machine vibration, lower efficiency and other server problems. According to pumping station features, some engineering measures can improve effectively the intake flow patterns in the fore bay and the inlet conditions of pumps. In this paper, the reasons for the bad flow pattern are analyzed on the basis of model test of the fore bay of Wuhaogou pumping station of Qingcaosha water resource project which is the major security project of Shanghai World Expo 2010. The methods were discussed to the inlet flow patterns and the influence of the inlet flow patterns, and the measures which are multi-water distribution holes and bottom sill and guide piers were put forward to ameliorate the flow pattern in the paper. The model test results showed that the measures were valuable in ameliorating flow patterns and the inlet conditions of pumps. The engineering measures to improve the flow pattern in the fore bay are developed by the consideration of the analysis results and the features of pumping station layout.
机译：Fore Bay和大型城市侧流量泵站的流量模式更糟糕，导致机器振动，效率降低和其他服务器问题。根据泵站的特点，一些工程措施可以有效地改善前湾的进气模式和泵的入口条件。在本文中，基于清刊水资源项目武汉楼泵站前湾的模型试验分析了不良流动模式的原因，该项目是2010年上海世博会主要的安全项目。讨论了该方法入口流动图案和入口流动图案的影响，以及作为多水分配孔和底部门槛和底部门槛和引导墩的测量来改善纸张中的流动模式。模型测试结果表明，这些措施在改善流动模式和泵的入口条件下是有价值的。通过考虑分析结果和泵站布局的特征，开发了改善前海湾流动模式的工程措施。

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