超高压卸压阀的非定常流体力学特性数值研究  

Numerical research of unsteady hydrodynamic property of ultrahigh pressure-relief valve

作　　者：陈良军[1] 张程滔[1] 范玉德[1] 鲍延年[1] 

机构地区：[1]中国工程物理研究院化工材料研究所装备技术室,四川绵阳621900

出　　处：《机械设计》2014年第4期90-93,共4页Journal of Machine Design

基　　金："高档数控机床与基础制造装备"科技重大专项"高精度超高压压力曲线控制技术"课题经费资助项目(2011ZX04014-041)

摘　　要：基于超高压卸压阀的结构和工作原理,建立了卸压阀的数值模型。采用混合网格对计算模型进行离散化处理,运用Fluent流体计算软件对超高压卸压阀的流体力学特性进行计算研究,得到卸压阀开启度及油压对卸压阀流场特性的影响,以及阀芯、节流垫的受力变化规律。研究结果对于超高压卸压阀结构的确定及改进具有重要意义。Based on the structure and working theory of ultra- high pressure-relief valve, the numerical model of the valve is es- tablished. The hyper-mesh is adopted to disperse the model. With the help of Fluent software, the research to the hydrodynamic property of ultrahigh pressure-relief valve is taken. The force change rule of valve spool and throttle pad, and the influence of Valve＇s open-degree and oil＇s pressure on valve＇s hydrodynamic property are achieved. The research result gives directive function to the confirmation and improvement of the structure of ultrahigh pressure-relief valve.

关 键 词：超高压卸压阀 非定常 流体力学特性 气穴 

分 类 号：TH137.52[机械工程—机械制造及自动化]