齿形对类迷宫密封性能的影响研究Research of the Effects of Tooth Shape on Similar Labyrinth Seal Properties
焦圳,盖永庆,王晓冬,王智勇,李强,高飞,刘琳琳
JIAO Zhen,GAI Yong-qing,WANG Xiao-dong,WANG Zhi-yong,LI Qiang,GAO Fei,LIU Lin-lin
摘要(Abstract)：
针对类迷宫密封结构形式与往复式压缩机气缸与活塞之间密封性能的问题,深入讨论了不同齿形对类迷宫密封的密封性能影响。采用CFD方法对4组不同的齿形结构进行数值模拟,并把数值模拟结果与理论计算结果进行对比。对比结果表明:当齿形深宽比一定时,齿形结构对密封性能影响较大,其中梯形齿比圆弧形齿的泄漏量多21%;圆弧形齿最容易使流体形成能量耗散的涡旋,密封效果最好。
For the similar labyrinth seal structure have an impact on the reciprocating compressor sealing performance between the cylinder and the piston,in-depth discussion of the effect of tooth shape on similar labyrinth seal properties,using four different CFD methods to simulate the tooth structure,and the numerical results are compared with theoretical calculations. The results showed that when the aspect ratio of tooth shape is constant,tooth shape has a large impact on the sealing performance,and the leakage of the trapezoidal tooth is 21% more than the number of circular arc tooth; especially the circular arc tooth,which makes fluid more easily form a vortex with energy dissipation,and good sealing effect.
关键词(KeyWords)：
类迷宫密封;压缩机;密封齿形;泄漏量
similar labyrinth seal;compressor;sealing tooth shape;leakage
基金项目(Foundation): 辽宁省教育厅资助项目(LT2012006)
作者(Author):
焦圳,盖永庆,王晓冬,王智勇,李强,高飞,刘琳琳
JIAO Zhen,GAI Yong-qing,WANG Xiao-dong,WANG Zhi-yong,LI Qiang,GAO Fei,LIU Lin-lin
参考文献(References)：
- [1]高远,王凡,焦圳,等.类迷宫螺旋密封与迷宫密封的性能对比研究[J].润滑与密封,2014,39(2):71-75.
- [2]林丽,刘卫华.齿型夹角对迷宫性能影响的数值研究[J].润滑与密封,2007,32(3):47-50.
- [3]K.塔鲁达纳夫斯基,著,李均卿,刁元康,译.非接触密封[M].北京:机械工业出版社,1986:162-184.
- [4]Rhode D L,Demko J A,Traegner U K,et al.Predicion of incompressible flow in a labyrinth seal[J].ASME Journal of Fluids Engineering,1986,108(1):19-25.
- [5]许立,杨笑瑾,施志辉,等.螺旋管局部损失的数值模拟[J].机床与液压,2009,37(10):114-116.
- [6]巴鹏,林茂,陈道亮,等.密封间隙对迷宫密封性能影响的三维数值分析[J].润滑与密封,2012,37(10):83-86.
- [7]刘有军.迷宫密封湍流增阻的数值研究[J].计算力学学报,2005,22(3):331-334.
- [8]丁学俊,肖国俊,杨彦磊,等.迷宫密封齿型对密封流场与泄漏量的影响[J].华中科技大学学报,2006,34(7):9-10.
- [9]赵光耀.设备泄漏的防治[M].北京:冶金工业出版社,1986:11-13.
- [10]Ernst P.利用无油润滑迷宫式活塞压缩机解决特殊气体的压缩问题[J].压缩机技术,1994,(6):3-14.
- [11]肖芳,王亚洲,刁安娜,等.基于FLUENT技术迷宫密封的结构优化[J].流体机械,2013,41(9):36-39.
- [12]巴鹏,黄建峰,张秀珩.多变量双侧齿迷宫密封泄漏量模拟分析研究[J].流体机械,2014,42(12):25,48-51.
- [13]许志倩,闫相祯,杨秀娟,等.非API套管接头主密封结构气密性能试验分析[J].压力容器,2014,31(4):11-16.
- [14]杨绮云,高靖宇.食品超高压设备金属密封圈失效机理及有限元分析[J].包装与食品机械,2013,31(3):34-37.
- [15]潘华辰,祝佳乐.填料密封阻塞下气体螺旋密封的数值模拟研究[J].机电工程,2014,31(3):306-310.
- [16]朱高涛,刘卫华.迷宫密封泄漏量计算方法的分析[J].润滑与密封,2004,(4):123-126.