机械科学与技术2017，Vol.36Issue(8)：1180-1186,7.DOI:10.13433/j.cnki.1003-8728.2017.0806
孔板前后倾角对高速离心泵流场特性的影响
Effect of Dip Angle of Orifice Plate in the Flow Field of High-speed Centrifugal Pump
摘要
Abstract
The method of changing the dip angle of orifice plate is proposed in order to study the effect of orifice plate type on the inlet vortex backflow of high speed centrifugal pump.25 different kinds of dip angle of orifice plate are designed and the flow field of a high-speed centrifugal pump is simulated based on ANSYS-CFX software.Three dip angle schemes that can improve the hydraulic performance of high-speed centrifugal pump are selected.The overall flow field of high-speed centrifugal pump,the changing of velocity vector,pressure and internal flow field are analyzed,and the performance curves of orifice plate with different dip angles are studied.The results show that orifice plates with-20°/10° dip angle can improve the backflow whirlpool of the inlet vortex backflow and control the swirling flow inside the idler,thus the hydraulic performance of high speed pump is improved.关键词
高速离心泵/回流漩涡/孔板/倾角Key words
high-speed centrifugal pump/vortex backflow/orifice plate/dip angle分类
航空航天引用本文复制引用
魏立超,宋文武,石建伟,杨秀鑫,许倩语..孔板前后倾角对高速离心泵流场特性的影响[J].机械科学与技术,2017,36(8):1180-1186,7.基金项目
西华大学流体及动力机械教育部重点实验室开放基金资助(szjj2015-037)、西华大学流体及动力机械教育部重点实验室(重点研究基地)开放课题(szjj2015-039)及西华大学研究生创新基金项目(ycjj2015044)资助 （szjj2015-037）
