干气密封环端面结构参数正交优化及热变形研究

王延忠; 蒲天新; 黄荣瑛; 宁克焱; 韩明

doi:10.3879/j.issn.1000-0887.2015.06.007

干气密封环端面结构参数正交优化及热变形研究

doi: 10.3879/j.issn.1000-0887.2015.06.007

¹北京航空航天大学机械工程及自动化学院, 北京 100191;²中国北方车辆研究所, 北京 100072

基金项目: 国家自然科学基金（51275020）；国家科技支撑计划（2014BAF08B01）

详细信息

作者简介:
王延忠（1963—），男，辽宁人，教授，博士生导师（E-mail: yanzhongwang63@126.com）；蒲天新（1990—），男，陕西人，硕士生（E-mail: ptx_520@163.com）；黄荣瑛（1955—），女，甘肃人，副教授（通讯作者. E-mail: buaahry@buaa.edu.cn）.

中图分类号: TB42;O351.2
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出版历程
- 收稿日期: 2015-01-27
- 修回日期: 2015-05-06
- 刊出日期: 2015-06-15

Thermal Analysis and Optimization of Structural Parameters for Dry Gas Seal Rings

¹School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, P.R.China;²China North Vehicle Reserch Institute, Beijing 100072, P.R.China

Funds: The National Natural Science Foundation of China(51275020)

摘要

摘要: 泄漏是干气密封失效的主要形式，而密封环端面又是主要的泄漏通道.针对特定工况，利用密封环的结构参数对密封气膜性能的影响程度，通过有限元正交仿真，来优选密封环的端面结构参数；另外，利用稳态热分布的有限元仿真，通过热-结构耦合，获得密封动环的热变形及动环材料属性对密封特性的影响关系.研究结果显示，除弹性模量之外，导热系数、Poisson(泊松)比和热膨胀系数均与密封动环的热变形成拟线性关系.研究结果对干气密封环的优化设计具有指导和参考价值.
- 干气密封 /
- 气膜性能 /
- 有限元 /
- 热变形
Abstract: Leakage is the primary failure form of the dry gas seal, while the end face of the seal ring makes the main leaking channel. For some specific conditions, based on the relationships between the structural parameters and the gas film properties of the seal ring, the methods of finite element simulation and orthogonal optimization were used to select a better combination of the seal ring end face structural parameters. In addition, the steady-state heat distribution of the seal ring was simulated. On the basis of that, the thermal deformation of the seal ring was computed to explore the relationships between the material parameters and the sealing properties of the seal ring. The research results show that, except the elastic modulus, the thermal conductivity, Poisson's ratio and thermal expansion coefficient are all in a quasi-linear relationship with the thermal deformation of the seal ring. The work has guiding significance and reference value for the design and optimization of dry gas seal rings.
- dry gas seal /
- gas film property /
- finite element /
- thermal deformation

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参考文献(18)

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