水利水电科技进展Issue(2)：55-58,4.DOI:10.3880/j.issn.10067647.2013.02.012
泵站进水池构筑物布置形式对水流的影响
Effect of structural patterns in sump of pumping stations on flows
摘要
Abstract
In order to analyze the effect of the structural layout in the sump of pumping stations, CFD technology was employed to simulate the flow regimes in the sump with different structural patterns. The simulated results show that the pump beams set at both sides of the inlet pipe basically have no effect on the flow regime in the sump and the hydraulic performance in the outlet of the trumpet mouth. When the pump beams at the side of the inlet pipe are changed to a maintenance platform, a horizontal vortex appears below the platform, and the hydraulic performance in the outlet of the trumpet mouth slightly decreases. When the maintenance platform is set behind the inlet pipe, the channel for the water at the sump surface and near-wall regions flowing into the trumpet mouth is cut off, and the hydraulic performance at the outlet decreases. When the maintenance breast wall is set in the sump, the flowing patterns of the surface water are changed, leading to one-way flows into the trumpet mouth, and the hydraulic performance at the outlet obviously decreases. When the maintenance breast wall in the sump and the maintenance platform behind the inlet pipe are simultaneously set, the flows in the sump are turbulent and result in one-way flows into the trumpet mouth, and the hydraulic performance at the outlet is worst. Therefore, except for the pump beams, other structures should not be set in the sump.关键词
泵站/进水池/构筑物/流态/水力性能/数值模拟Key words
pumping station/sump/structure/flow regime/hydraulic performance/numerical simulation分类
建筑与水利引用本文复制引用
颜红勤,陈松山..泵站进水池构筑物布置形式对水流的影响[J].水利水电科技进展,2013,(2):55-58,4.基金项目
江苏省水利科技重点项目(2009014) （2009014）
