液控单向阀的气穴旋涡现象和流量分析  

The Cavitation Vortex Phenomenon and Flow Analysis of the Pilot Controlled Check Valve

作　　者：杨国来[1] 靳松 刘圆圆 李新峰 YANG Guo-lai;JIN Song;LIU Yuan-yuan;LI Xin-feng(School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050

出　　处：《液压气动与密封》2019年第2期1-4,共4页Hydraulics Pneumatics & Seals

基　　金：国家火炬计划资助项目(2015GH531401)

摘　　要：应用Fluent软件对液控单向阀内部的流道进行三维模拟仿真,得到其在卸载时的压力分布、速度分布矢量图和带有速度分布矢量的压力分布图,分析了空化旋涡产生和影响,并对液控单向阀的阀芯周围的通油孔的数量进行了优化改进,发现通油孔数目的增加可以使旋涡区域的压强增加,减小了产生空化的可能,并随着通油孔数目的增加减小了阀芯节流口处的最大流速,并且使出口处的流量增加,为液控单向阀的设计提供了理论依据。The application of Fluent software on the inside of the pilot controlled check valve internal 3D simulation,get the unloading pressure distribution,velocity distribution vector diagram and with the pressure of the velocity vector distribution,and analyzes the influence of cavitation vortex phenomenon,quantity of oil hole and valve control valve on the liquid around the optimized,found the number of oil hole can increase the pressure of eddies increases,reduced cavitation is possible,and as the number of oil hole increase to reduce the maximum velocity at the orifice of the valve,and the outlet of the flow increases,provides a theoretical basis for the design of hydraulic control valve.

关 键 词：液控单向阀 气穴旋涡现象 三维模拟仿真 FLUENT 

分 类 号：TH137[机械工程—机械制造及自动化]