农业机械学报2012，Vol.43Issue(11)：142-146,5.DOI:10.6041/j.issn.1000-1298.2012.11.027
基于CFD技术的多级潜水泵优化设计
Optimization Design of Multi-stage Submersible Pump Based on CFD
摘要
Abstract
Combined with the characteristics of multi-stage submersible pump, the pump with sloping impeller and space guide vane was optimized using efficiency as optimization object. To improve the accuracy of numerical simulation, parametric fitting for sloping impeller and space guide vane was carried out. In the process of optimization, the blade inlet and outlet angle of the impeller and guide vane were considered as the control parameters. The range of angle was increased ±20°compared with the original model. Based on the successive flow field check, the optimal impeller model was obtained in the variation range of control parameters searching the optimum value of objective function based on genetic algorithm. The optimal model was obtained when inlet angle at the bottom of the blade was 35. 53° and the outlet angle was 27. 32°, the inlet angle of the guide vane was 15.48° and outlet angle was 61.75°. The pump efficiency increased by 4. 12% , and the single stage head increased 1. 449 m. The range of high efficiency has been extended, the stability of pump operation is improved, and the performance of the pump is optimized.关键词
多级潜水泵/CFD/优化设计/遗传算法/效率Key words
Multi-stage submersible pump/ CFD/ Optimization design/ Genetic algorithm/ Efficiency分类
机械制造引用本文复制引用
崔宝玲,孟嘉嘉,贾晓奇..基于CFD技术的多级潜水泵优化设计[J].农业机械学报,2012,43(11):142-146,5.基金项目
浙江省重大科技专项重大工业项目(2010C01032) （2010C01032）
