基于正交试验的轴流泵优化设计  

Axial-flow Pump Optimization Design Based on the Orthogonal Experiment

作　　者：邢树兵 朱荣生[1] 朱冬欣 龙云[1] 贺博[1] 曹梁[1] 

机构地区：[1]江苏大学流体机械工程技术研究中心,镇江212013 [2]南京航空航天大学能源与动力学院,南京211106

出　　处：《中国农村水利水电》2015年第1期167-171,共5页China Rural Water and Hydropower

基　　金：国家自然科学基金(51379091);江苏省自然科学基金科技项目资助(BK20130516);江苏高校优势学科建设工程资助项目(PDPA)

摘　　要：对轴流泵进行正交试验法优化设计,为了研究叶轮、导叶、喇叭管对轴流泵性能的影响,设计了一个三因素二水平的正交方案。对每个方案进行试验测试,通过分析每个试验方案的性能曲线图,得到了对于各个性能的最优方案,对各个方案的试验数据进行极差分析,得到了轴流泵叶轮、导叶、喇叭管影响性能的主次顺序。通过分析与比较得出最优参数组合,即叶片角度ψ=0°的叶轮,加导流锥的导叶体,进口直径与叶轮直径比值为DL/D0=1.56、高度HL/D0=0.82的喇叭管。试验结果表明,最优组合方案在额定流量点扬程高于设计值6.16%,效率比规定值高出5.07%,轴流泵的高效区较宽,性能达到设计要求。The optimization design of Axial-flow pumps is done by using the orthogonal design method.Orthogonal scheme of three factors and two levels are designed,and the influence of the impeller,guide vane and horn tube on the characteristics are studied.Each scheme is tested.Optimal scheme of the characteristics is found by analyzing the contrast of performance curves.The influence orders of the impeller,guide vane and horn tube on the characteristics are obtained by range analysis.The optimization parameter combination is obtained with a comprehensive balance analysis and comparison to the data results.The optimization parameter combination is impeller with blade angleψ=0°,guide vane with diversion cone,and horn tube with the diameter ratio of import and impeller DL/D0=1.56,the ratio of height and the impeller diameter HL/D0=0.82.The optimal combination of scheme result shows that the head of the rated flow point is higher than the designed value by 6.16%,the efficiency of the rated flow point is higher than the prescribed value by 5.07%.The axial-flow pump has an efficient area.It demonstrates that the experimental purpose is reached and the design method is reasonable.

关 键 词：正交试验 轴流泵 优化设计 叶轮 导叶体 喇叭管 导流锥 

分 类 号：TH311[机械工程—机械制造及自动化]