多路换向阀节流槽流场的CFD解析  

CFD Simulation of Flow Field in Throttle Groove of Multiway Directional Valve

作　　者：乔治 熊瑞平[1] 赵亚文 刁燕[1] QIAO Zhi;XIONG Rui-ping;ZHAO Ya-wen;DIAO Yian(School of Manufacturing Science and Engineering,Sichuan University,Sichuan Chengdu 610065,China)

机构地区：[1]四川大学制造科学与工程学院,四川成都610065

出　　处：《机械设计与制造》2020年第10期239-242,共4页Machinery Design & Manufacture

基　　金：川大-泸州LG15/10高压微型油缸的关键技术及制造(2015CDLZ-G24)。

摘　　要：针对整体式多路换向阀在换向过程中存在较大液力冲击及能耗的问题,在阀芯处开节流槽以减小其对液压系统的影响,基于FLUENT对阀体内的复杂流场进行仿真及分析。完成多路换向阀内部流场的三维建模,通过对其不同开口度进行数值仿真计算,得到油液速度场中高速射流区域的变化趋势;并对三角形、矩形、半圆形节流槽对应的流场进行可视化对比分析,结果表明矩形节流槽缓解冲击力和降低噪音的效果最好。对多路阀节流槽形状设计具有一定参考价值。Aimed at the issue of the large hydraulic impact and energy consumption in the reversing process of the integral multiway directional valve,open throttle groove at the spool is used to reduce the effect on hydraulic system,and the simulation of complex flow field in the valve is based on fluent.The three-dimensional modeling of the flow field inside the multiway directional valve have completed.Through numerical simulation of the different openings,obtained the change trend of the velocity field in the oil liquid.And the flow field corresponding to the triangle,rectangle and semicircular throttle groove is comparison analyzed,the results show that the rectangular throttle groove can reduce the impact and noise effectively.It has some reference value to the design of the throttle groove of the multiway valve.

关 键 词：多路换向阀 FLUENT 三维建模 节流槽 流场 

分 类 号：TH16[机械工程—机械制造及自动化] TH137.52