港口航道与近海工程2026，Vol.63Issue(3)：6-10,5.DOI:10.16403/j.cnki.ggjs20260302
取水泵水流流态整体物理模型试验与局部防涡装置优化研究
Study on Overall Physical Model Experiments of Flow State of Water Intake Pump and Optimization of Local Anti-Vortex Device
许云飞 1王晓东 1倪子皓1
作者信息
- 1. 中交四航局第二工程有限公司,广东 广州 510300
- 折叠
摘要
Abstract
In order to ensure stable and efficient supply of cooling water to the surrounding industrial infrastructures through a large-scale cold seawater intake pump station in Gizan,Saudi Arabia,a physical model experiments were conducted for the complex water flow state inside the pump station.The analysis results showed that the model experiment based on Froude Similarity Criterion,with a geometric scale of 1:15 being taken.It was verified that Reynolds number was greater than 30 000 and Weber number was greater than 120 at the inlet.The data could meet ANSI/HI9.8 standard that didn't take into account the impact of viscosity effect and surface tension on the experiments.The deviation of pump room P1 and P6 resulted in a relatively high swirl angle of the corresponding water pumps.Unstable ARL3 surface vortices and ARL2 underwater vortices around the inlet approached the accepted ultimate state.An anti-vortex device was proposed,including a triangular chamfer filling step,a low-level side wall plus rear wall rounded step,a triangular cross-section horizontal bottom plate separator,a trapezoidal cross-section vertical rear wall separator,and a submerged horizontal baffle.The results showed that the level of surface vortices at the inlet of the water pump was lowered from originally short-term stable ARL3 to unstable ARL3,and the level of underwater vortices was lowered from originally unstable ARL2 to stable ARL1.关键词
取水泵站/物理模型试验/水流流态/防涡装置Key words
water intake pump station/physical model test/water flow state/anti-vortex device分类
建筑与水利引用本文复制引用
许云飞,王晓东,倪子皓..取水泵水流流态整体物理模型试验与局部防涡装置优化研究[J].港口航道与近海工程,2026,63(3):6-10,5.
