关键词: 簸箕形进水流道; 泵站; 正交试验; CFD; 扬程; 效率;

Abstract: Based on the orthogonal test analysis method, L(9 )(34) test table was used to design the four important structural parameters of the dustpan-shaped inlet conduit and the nine types of design schemes were numerically simulated based on the commercial simulation software CFD,and then solid model test was used to verify the calculation results.At the same time, the influences of various factors on the hydraulic performance of the channel were analyzed numerically.The results showed that the inflow area of the horn tube had the greatest influence on the head and efficiency of the pump device.Too small horn tube inflow area would cause complicated energy exchange at the inflow position, affecting the uniformity of velocity distribution; while too large horn tube inflow area would cause loss of axial velocity.The research results can provide reference for the optimal design of inlet conduit in similar pumping station projects.

Key words: dustpan-shaped inlet conduit; pumping station; orthogonal test; CFD; head; efficiency;