流体机械Issue(6)：11-15,21,6.DOI:10.3969/j.issn.1005-0329.2013.06.003
带分流叶片低比转速无过载离心泵优化设计
Non-overload Optimization Design on Low Specific Speed Centrifugal Pump with Splitter Blades
摘要
Abstract
Aiming at the problems of easily overload and having humps of the TS 65-40-250 centrifugal pumps.Non-overload design method and added splitter blades were adopted for parameters selection of impellers and three optimization schemes were put forward.The 3-D models and the 1.5 million structure grids were generated by Pro /E and ICEM respectively.After the boundary conditions of mass -flow rate at the inlet, pressure outlet and no-slip wall were specified and the flow model was comple -mented with the standard k-ε model in the commercial software CFX 12.1.The flow field distributions of pressure, streamlines, turbulence kinetic energy and velocity as well as hydraulic performances in three impellers are predicted throngh simulation .Im-peller1 with good hydraulic characteristics and excellent inner flow patterns were produced for experiments after prototyping rapid -ly.The test results are in accordance with the simulating results .The head of impeller1 is 15% higher than the design parameter at most and the efficiencies are 2% ~6% higher than the designed efficiencies .The test results also show a good non-overload performances.The results prove that it is an effective and reliable method to design a non -overload pump with low specific speed .关键词
离心泵/低比转速/无过载设计/分流叶片/优化设计Key words
centrifugal pump/low specific speed/non-overload design/splitter blade/optimization design分类
机械制造引用本文复制引用
..带分流叶片低比转速无过载离心泵优化设计[J].流体机械,2013,(6):11-15,21,6.基金项目
国家自然科学基金重点项目水力机械空化特性及对策（51239005）；江苏高校优势学科建设工程资助项目 （）
