低比转速离心泵大包角叶轮的优化设计

发布时间：2018-01-03 01:15

本文关键词：低比转速离心泵大包角叶轮的优化设计　出处：《水泵技术》2017年02期 　论文类型：期刊论文

【摘要】：为了研究在大包角下低比转速离心泵叶轮的水力性能,本文采用CFD数值模拟并结合试验对大包角下的低比转速离心泵叶轮进行优化设计。在叶轮其他参数相同的条件下,对包角300°的9种方案分别进行数值计算,对试验结果采用极差分析,得到了300°大包角下叶轮的最优参数组合,并对比了该参数组合下泵数值模拟结果与试验结果。研究结果表明:数值模拟预测的泵外特性与试验结果基本符合,验证了数值模拟结果的准确性。研究结果为低比转速离心泵大包角叶轮的设计提供了一定的理论参考。
[Abstract]:In order to study the hydraulic performance of centrifugal pump impellers with low specific speed at large packet angles. In this paper, CFD numerical simulation and test are used to optimize the design of low specific speed centrifugal pump impeller under the condition of the same impeller parameters. Nine schemes with 300 掳envelope angle were numerically calculated, and the optimum parameters combination of impeller with 300 掳large envelope angle was obtained by using range analysis of the test results. The numerical simulation results are compared with the experimental results. The results show that the external characteristics predicted by the numerical simulation are in good agreement with the experimental results. The accuracy of the numerical simulation results is verified, and the results provide a theoretical reference for the design of the large ladle impeller of the centrifugal pump with low specific speed.
【作者单位】：合肥工业大学机械工程学院;中石化北京燕山分公司物资装备中心;
【分类号】：TH311
【正文快照】： 弓|言叶轮作为低比转速离心泵核心过流部件,其参数对低比转速离心泵的扬程和效率具有重要影响。目前,国内学者对低比转速离心泵叶轮的研究已取得一些成果。蔡彬等采用CFD技术研究了不同叶片数对低比转速离心泵的流场分布规律,得到了叶片数对低比转速离心泵流动的影响。葛书

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