机械科学与技术2018，Vol.37Issue(5)：663-668,6.DOI:10.13433/j.cnki.1003-8728.2018.0502
井下涡轮发电机叶片改型与优化设计
Modification and Optimization Design of Blade for Down-hole Turbine Generator
摘要
Abstract
To improve the efficiency of turbine blades and output power of turbine generators,a method for modifying blade and optimizing design was put forward.Firstly,the blade modification was in progress by remodeling the guide roller type lines and turbine airfoil profiles respectively,and matching guide rollers andturbine groups with different blade profiles.Then,the flow field analysis was conducted to investigate the effects of the different structures of guide roilers on the turbine performance.In this way,the high efficiency and large torque impeller combinations would be selected.Moreover,the combination of BP neural network and Fmincon function and genetic algorithm method was adopted to conduct optimized analysis.Specifically,the optimized results indicated that the efficiency of single stage turbine increased by 4.74％.The maximum work efficiency increased from 64.824％ to 79.4％,which improved about 14.6％.The ideal output power had improved by 274.7 W.关键词
涡轮/导轮/叶片改型/流场分析/结构优化Key words
turbine/guide rollers/blade modification/flow field analysis/structure optimization分类
矿业与冶金引用本文复制引用
张晓东,欧松,龚彦,鲁慧萍..井下涡轮发电机叶片改型与优化设计[J].机械科学与技术,2018,37(5):663-668,6.基金项目
西南石油大学研究生创新基金项目(CXJJ2015017)与四川省应用基础研究计划基金项目(2014JY0229)资助 （CXJJ2015017）
