表面油流法显示螺旋离心泵内部流动的研究  

OIL FILM OBSERVATION ON INTERNAL FLOWS IN A SCREW CENTRIFUGAL PUMP

作　　者：郭乃龙[1,2,3] 关醒凡[1,2,3] 高良润 

机构地区：[1]江苏理工大学流体机械研究所 [2]江苏省镇江市关醒凡江苏理工大学流体机械研究所 [3]江苏理工大学农机学院

出　　处：《农业机械学报》1997年第3期29-34,共6页Transactions of the Chinese Society for Agricultural Machinery

摘　　要：对螺旋离心泵叶轮、进水节和进水节与蜗壳交界处的部分端面做了表面油膜、油点试验。通过流谱分析，揭示了表面奇点、分离线与再附着线等流动特征，研究了螺旋离心泵内部流动规律，进而提出了改进螺旋离心泵结构的设想。The experiments of an oil film visualization technique are accomplished on the surfaces of impeller, inlet segment and partial meet face between inlet segment and volute casing. Based on the theory of flow pattern analysis, the flow characteristics of surface singular points, separation lines and re adhesional lines are revealed by analyzing the flow patterns of surface oil film, and the flow laws of internal flows in the screw centrifugal pump are studied. Furthermore the assumptions of improving the structures of screw centrifugal pump are presented.

关 键 词：螺旋离心泵 内部流动 表面油流法 离心泵 

分 类 号：TH311.01[机械工程—机械制造及自动化]