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泵站进水池作为泵站的重要进水建筑物,后壁平面形状对水泵的进水流态和水泵的工作效率都有一定的影响。此文应用CFD技术,将流速均匀度和流量作为水泵性能评估的依据,设定了多个设计工况,对矩形后壁、蜗形后壁以及水面加设隔板后水流的流态进行了数值计算,系统地分析了各工况下的进水池内的流动特性,揭示了矩形和蜗形进水池水流流动的水力性能差异,对类似进水池的设计和改造具有一定的参考意义。
Pumping station into the pool as an important water pumping station buildings, the shape of the rear wall of the pump inlet flow and pump efficiency have a certain impact. In this paper, CFD technology is used to determine the flow rate uniformity and flow rate as the basis of pump performance evaluation. Several design conditions are set up. The flow pattern of the rectangular rear wall, the spiral back wall and the water surface after the diaphragm is added Numerical analysis is made to systematically analyze the flow characteristics of the inflow pool under various operating conditions and to reveal the difference in hydraulic performance between the rectangular and snail-shaped inflow pools. This is of some reference significance for the design and reconstruction of similar influent pools.