Modification and Optimization Design of Blade for Down-hole Turbine Generator
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摘要: 为提高涡轮叶片效率和涡轮发电机的输出功率,提出一种叶片改型与优化设计的方法。分别对导轮型线和涡轮翼型进行改型,通过不同叶型的导轮和涡轮组合的CFD流场分析,研究不同结构的导轮对涡轮性能的影响,从中选择出高效率、大扭矩的叶轮组合,基于BP神经网络和Fmincon函数与遗传算法结合的方法对叶片进行优化分析,并对比试验数据验证了此方法的可行性。优化结果表明单级涡轮的效率增加了4.74%,最大工作效率由初始的64.824%提高至79.4%,提升了约14.6%,理想输出功率增加了274.7 W。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 and turbine groups with different blade profiles. Then, the flow field analysis was conducted to investigate the effects of the different structures of guide rollers 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.
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Key words:
- turbine /
- guide rollers /
- blade modification /
- flow field analysis /
- structure optimization
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[1] 黄晓凡,林恩怀,干昌明.井下涡轮发电机系统特性分析与实验[J].石油钻探技术,2012,40(6):104-109 Huang X F, Lin E H, Gan C M. Performance analysis of downhole turbine alternator system and its experimental verification[J]. Petroleum Drilling Techniques, 2012,40(6):104-109(in Chinese) [2] 黄晓凡,林恩怀.石油钻井用泥浆发电机综述[J].石油仪器,2013,27(1):31-33,36 Huang X F, Lin E H. An overview of mud alternator used in oil drilling[J]. Petroleum Instruments, 2013,27(1):31-33,36(in Chinese) [3] 张先勇,冯进.井下水力涡轮的研究现状及发展[J].机械工程师,2012,(10):26-29 Zhang X Y, Feng J. Present research status and development of downhole hydraulic turbine[J]. Mechanical Engineer, 2012,(10):26-29(in Chinese) [4] 杨勤.井下泥浆涡轮发电系统中涡轮优化设计及匹配研究[D].武汉:华中科技大学,2011 Yang Q. Optimal design and matching research of the turbine for the downhole mud turbine power system[D]. Wuhan:Huazhong University of Science and Technology, 2009(in Chinese) [5] Chin W C, Ritter T E. Turbo siren signal generator for measurement while drilling systems:US, 5586083[P]. 1996-12-17 [6] Ringer M, Johnson A B, Barrett M, et al. Real-time motor and turbine performance monitoring and optimization[R]. SPE 151451, San Diego, California, USA:Society of Petroleum Engineers, 2012 [7] Lerner D, Masak P. Integrated modulator and turbine-generator for a measurement while drilling tool:US, 5517464[P]. 1996-05-14 [8] Hoschek J, Mu··ller R. Turbine blade design by lofted B-spline surfaces[J]. Journal of Computational and Applied Mathematics, 2000,119(1-2):235-248 [9] 杨霞,刘勇.涡轮马达的结构优化[J].机械工程与自动化,2010,(6):181-182 Yang X, Liu Y. Optimization of turbine motor structure[J]. Mechanical Engineering & Automation, 2010,(6):181-182(in Chinese) [10] 胡忠海.钻井液连续波脉冲发生器设计与数值分析[D].广州:华南理工大学,2013 Hu Z H. Design of drilling fluid continuous wave generator and numerical analysis[D]. Guangzhou:South China University of Technology, 2013(in Chinese) [11] 沈玉琴.井下涡轮发电机导轮与涡轮结构优化与分析[D].广州:华南理工大学,2015 Shen Y Q. Optimal design and simulation of stator and rotor for downhole turbine generator[D]. Guangzhou:South China University of Technology, 2015(in Chinese) [12] 冯建军.基于遗传算法的平面叶栅优化设计[D].西安:西安理工大学,2002 Feng J J. Waterpower engineering[D]. Xi'an:Xi'an University of Technology, 2002(in Chinese) [13] 沈阳水泵研究所,中国农业机械化科学研究所.叶片泵设计手册[M].北京:机械工业出版社,1983 Shenyang Water Pump Research Institute, Agricultural Mechanization Research Institute of China. Vane pump design manual[M]. Beijing:Machinery Industry Press, 1983(in Chinese) [14] 刘洋浩.两种不同优化算法在螺旋桨设计中的应用和比较[D].哈尔滨:哈尔滨工程大学,2012 Liu Y H. The application and comparison of two different optimization algorithms in the design of propeller[D]. Harbin:Harbin Engineering University, 2012(in Chinese) [15] Lu H P, Li B, Zhang X D. Optimization design for downhole turbine generator based on response surface method[J]. International Journal of Engineering and Advanced Research Technology, 2016,2(7):16-21 [16] 朱迪,赵国臣,潘光玮,等.基于CFX双向固流耦合的涡轮发电机研究[J].西南石油大学学报(自然科学版),2011,33(6):155-159 Zhu D, Zhao G C, Pan G W, et al. Study of turbine generator based on the fluid-solid coupling interaction of CFX[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2011,33(6):155-159(in Chinese)
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