1000m Head Segments Impulse Turbine Wheel Optimization And Performance

China is now the impulse turbine energy storage very much, but the development isvery small. impulse turbine runner foreign and early Harbin Electrical Machinery Plant, etc.provided, there is no domestic self-developed impulse turbine wheel. In recent years, themanufacturers either continue to use the old wheel or be some transformation, or the highprices of imports runner. With the development of modern jet theory, erosion theory, fracturemechanics theory, people have been able to more accurately recognize the causes of chippingturbine damage; application of computer technology and new materials, new technology inthe research, design and manufacturing, impulse turbine than speed and reliability achievedgreat development. And combined with the application of finite element stress analysismethod, as well as the site of destruction accurate predictions, which in theory has provided aguarantee to take effective preventive measures.The article focuses on the the1000m water head impulse turbine flow field analysis andoptimization, to optimize the cut hit runner Pelton efficiency, strength, and the first part ofthis article describes the development in the world and the background the necessity andsignificance of the study of this subject,and the current outstanding impulse turbine Pelton beanalyzed. The second part of the article, impulse turbine internal flow field analysistheoretical basis.The impulse turbine jet type since the beginning, with the good determine therunner optimize the target; characteristics of the jet into the bucket leaves. The third part,impulse turbine internal flow field to be digitized. Need to be applied to the optimizationwheel1000m head section of the water distribution loop strength, efficiency, and jet qualityimpact on the efficiency of the entire unit, this article also for strengthening and stiffenerswater distribution loop simulation; addition, a single Pelton and the whole shape of the wheel,the built model mesh. The fourth part of the water jet state and different operating conditionsof the internal flow field analysis and optimization and structural strength analysis.High head impulse turbine power station at home and abroad and the wheel woodenmodel figure, to collate statistical analysis; combination chipping turbine theory, jet theoryimpulse turbine-current and current theory in-depth study. A870impulse turbine runner lineas the main research object, based on the strength theory hydraulic performance optimization,optimized through a multidisciplinary research, comparative study of a variety of programs,select three runner runner optimizedUG three-dimensional modeling, make full use Fluentinternal flow field analysis software on three runner design flow analysis, select a good flowproperties and effective hydraulic wheel, its analysis of the numerical simulation of theperformance of various conditionshydraulic performance of different jet state. Finally, we use the ANSYA structural analysis software in order to ensure the structural strength of the newlydeveloped wheel, the wheel of a newly developed strength stress analysis, to ensure the safeuse of the new runner to be safe to apply to1000m under new head rangeimpulse turbinerunner line.