变刚度弹簧式恒流阀的结构设计与分析  

The Structure Design and Analysis of Variable Stiffness Spring Type Constant Flow Control Valve

作　　者：黎少辉[1] 李建松[1] LI Shaohui;LI Jiansong(Xuzhou College of Industrial Technology,Xuzhou 221140,China)

机构地区：[1]徐州工业职业技术学院,江苏徐州221140

出　　处：《机械》2018年第1期46-49,共4页Machinery

基　　金：江苏省"青蓝工程"资助项目(QLGC-2013-04);江苏省高职院校高级访问学者计划项目(2015FX085)

摘　　要：针对现有机械自力式恒流量控制阀结构多目标优化设计难点,提出基于圆锥环状缝隙为控制流道的变刚度弹簧式恒流阀的设计方案,并采用k-ε标准湍流模型,对不同压差下的出口流量进数值字模拟,结果显示,在压力波动范围(30~150 k Pa)内该恒流阀平均流量理论误差可控制在0.19%左右,精度高,结构简单,通流能力大。Aiming at reducing the difficulty of multi-objective optimization in the design of constant flow control valve,a variable stiffness spring constant flow control valve(VSSCFCV)was designed to be used in conical gap flow.k-εturbulence model was used to calculate the outlet flow in different pressure differential.The average flow rate error can be controlled at around 0.19%when pressure fluctuation ranges from 30 to 150 kPa.The simulated results show that VSSCFCV has high flow controlling precision,simple structure and good flow capacity.

关 键 词：圆锥环状缝隙 变刚度弹簧 恒流阀 

分 类 号：TH138.522[机械工程—机械制造及自动化]