超(超)临界迷宫式调节阀结构安全性分析  

Structural Safety Analysis of Ultra Supercritical Labyrinth Control Valve

作　　者：王宇峰 何庆中[1] 陈雪峰[2] 赵献丹[1] 刘惺 董学莲 WANG Yufeng;HE Qingzhong;CHEN Xuefeng;ZHAO Xiandan;LIU Xing;DONG Xuelian(School of Mechanical Engineering,Sichuan University of Science & Engineering,Zigong Sichuan643000,China;China Valve Co.,Ltd.,Zigong Sichuan 643000,China)

机构地区：[1]四川理工学院机械工程学院,四川自贡643000 [2]华夏阀门有限公司,四川自贡643000

出　　处：《机床与液压》2019年第5期121-124,179,共5页Machine Tool & Hydraulics

基　　金：四川省教育厅创新团队项目(17TD0026);自贡市科技支撑项目(2016J216);四川理工学院研究生创新基金项目(y2017030)

摘　　要：针对超(超)临界迷宫式调节阀在使用中可能产生的结构安全性问题,通过ANSYS软件对阀门进行热力耦合分析,揭示了阀门的温度分布以及阀门在热应力和介质压力共同作用下的应力分布情况。选取等效应力较大的阀体、碟片组件以及阀座零件进行应力分析评价。分析结果表明:与介质直接接触的腔面温度较高并向壁面厚度方向形成温度梯度,阀门的边缘以及上方温度相对较低。应力强度评定结果显示除阀座以外其余各零件均符合使用规范且安全余量较大。In the actual use of ultra supercritical labyrinth control valve, some structural safety problems may occur. To solve these problems, a thermal coupling analysis for the valve was made through ANSYS software. The temperature distribution and stress distribution of the valve under thermal stress and medium pressure were revealed. The stress analysis and evaluation of the valve body, disc components and seat parts with higher stress were discussed. The results show that the temperature of the inner surface of the valve directly contacted with the medium is higher, and the temperature of the valve forms a temperature gradient along the direction of the wall thickness. The temperature at the edge of the valve and on the top is low. The stress intensity evaluation results show that all the parts except the valve seat meet the specifications and have a larger margin of safety.

关 键 词：超(超)临界 迷宫式调节阀 温度分析 应力分析 

分 类 号：TH138.52[机械工程—机械制造及自动化]