半开式叶轮离心泵的效率优化与分析  

Optimization and analysis of efficiency for centrifugal pump with semi-open impeller

作　　者：陈松松[1] 阮越广[2] 阮晓东[1] 邹俊[1] 付新[1] 

机构地区：[1]浙江大学流体传动与控制国家重点实验室,浙江杭州310027 [2]浙江机电职业技术学院,浙江杭州310053

出　　处：《机电工程》2011年第7期806-808,共3页Journal of Mechanical & Electrical Engineering

基　　金：国家高技术研究发展计划("863"计划)资助项目(2010AA045401);中央高校基本科研业务费专项资金资助项目(2009QNA4001)

摘　　要：为了提高半开式叶轮离心泵的水力效率,应用速度系数法对半开式叶轮离心泵的水力效率进行了优化,并采用k-ε湍流模型和标准壁面函数对离心泵进行了数值模拟,仿真分析了蜗壳和叶轮顶端间不同间隙以及不同叶片数对离心泵水力效率的影响。研究结果表明,当蜗壳与叶轮顶面的间隙为0.5 mm,叶片数为6时,离心泵的效率较好。To improve the hydraulic efficiency of the centrifugal pump with semi-open impeller, the speed coefficient method was used to op- timize the hydraulic efficiency. The k-e turbulence model and standard wall function were applied to simulate the centrifugal pump. The effects of different clearances and numbers of vane on pump hydraulic efficiency were simulated and analyzed. It is showed that the efficiency of centrifugal oumo has satisfactory result, while the clearances between volute and impeller is O. 5 mm. the number of vane is 6.

关 键 词：离心泵 优化设计 速度系数法 计算流体力学 

分 类 号：TH311[机械工程—机械制造及自动化] TH122