轻工机械2012，Vol.30Issue(5)：48-50,3.DOI:10.3969/j.issn.1005-2895.2012.05.013
新型法兰迷宫式静密封几何结构优化设计
Optimal-Design of Geometric Structure in New Type Flange with Labyrinth Static Sealing
丁佳 1李云2
作者信息
- 1. 液化空气(杭州)有限公司,浙江杭州 311112
- 2. 杭州杭氧低温容器有限公司,浙江杭州311107
- 折叠
摘要
Abstract
Aiming at the new type flange with labyrinth static sealing, the paper set up a thermo-fluid-solid coupling mathematical model; the controlling equation-set for seal temperature and liquid film pressure between seal and flange were solved by finite difference method; and seal's heat, elastic, deformation by finite element method; carried out fluid, solid, thermo coupling analysis of new type flange with labyrinth static sealing; studied the impact of thermo elastic deformation on flange's sealing function, as well as the optimum design of its structure. The results show that the new type labyrinth seal for flange has better seal performance; the labyrinth seal can gradually decrease the pressure of the seal medium, which can improve the seal performance; the thermo elastic deformation of the seal ring can make the seal and flange surface even more close match, thus can prevent seal material from leakage.
关键词
静密封/法兰密封/热弹变形/迷宫密封/热弹性流体动压效应(TEHD)Key words
static sealing/ flange seal/ thermal-elastic deformation/ labyrinth seal/ TEHD ( thermal-elastic-hydro-dynamic )
分类
机械制造引用本文复制引用
丁佳,李云..新型法兰迷宫式静密封几何结构优化设计[J].轻工机械,2012,30(5):48-50,3.
