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导流器叶片进口安放角是影响潜水泵性能的重要几何参数,在导流器特性曲线理论分析的基础上,运用计算流体动力学理论对同一叶轮与不同进口安放角导流器组合后的潜水泵三维模型进行数值模拟,得到其性能曲线,并就安放角变化对潜水泵性能的影响规律进行分析,同时在水泵试验台上进行实测验证。结果表明:随着导叶片进口安放角的增大,潜水泵最佳工况点向大流量方向偏移。当导叶片进口安放角位于27~30时,潜水泵工作效率为75%~81%,处于较高值,相应工作流量为95~125m3/h,模拟值与实测值吻合较好。通过改变导流器叶片进口安放角,在一定工况范围内,潜水泵同样可以保持较高的效率,为增加其规格并扩大使用范围寻找出了一种新的途径。
The inlet angle of deflector blades is an important geometric parameter that affects the performance of submersible pumps. Based on the theoretical analysis of the flow characteristics of the submersible pump, CFD theory is used to simulate the submersible The three-dimensional model of the pump was numerically simulated to obtain its performance curve. The influence law of the submerged pump on the performance of the submersible pump was analyzed. At the same time, the test was validated on the pump test bench. The results show that with the increase of the inlet angle of the guide vanes, the submersible pump’s optimum working point shifts to the direction of large flow. When the inlet angle of the guide vane is between 27 and 30, the working efficiency of the submersible pump is between 75% and 81%, at a higher value, and the corresponding working flow is between 95 and 125 m 3 / h. The simulated and measured values are in good agreement. By changing the inlet angle of the deflector blade, the submersible pump can also maintain high efficiency under a certain working condition, finding a new way for increasing its specification and expanding the use range.