纯水锥阀的结构优化及其流场仿真  

Structural Optimization of Hydraulic Poppet Valve and Flow Field Simulation

作　　者：黄宇[1] 高霞[1] 周禾清[1] 吴晓磊[1] 王传礼[1] 

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001

出　　处：《煤矿机械》2012年第12期44-45,共2页Coal Mine Machinery

基　　金：安徽省教育厅自然科学基金重点项目(KJ2009A020)

摘　　要：介绍了纯水液压锥阀产生气穴的原因和危害,针对阀口附近易发生气穴的特点,设计了一种纯水锥阀的新结构,采用半切模型,与常规锥阀结构进行对比,并使用Fluent软件对改进前后2种锥阀阀口进行了流场仿真与分析。结果表明:在阀口锐缘处采用曲线连接以及分级降压的方式,可有效减小进出口压差,降低阀口处介质流速与气穴的产生,减少能量损失。This paper described reasons which cause cavitation in hydraulic poppet valves, based on characteristic which cavitation were easy to occur in area of valve port, design a new structure of poppet valve. Fluent were used to simulate flow field in valve port,simulation results show： use a decompression trough in valve port and some curve connection at sharp location can reduce pressure between import and export, lower possibility of cavitation occurs and energy loss.

关 键 词：纯水液压 锥阀 流场 仿真 

分 类 号：TH137.5[机械工程—机械制造及自动化]