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齿形结构对迷宫密封性能影响的动网格技术分析
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辽宁省教育厅项目(LT2012006)


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    摘要:

    采用动网格技术对4种不同齿形迷宫结构进行数值模拟,研究齿形对直通型迷宫压缩机密封性能的影响。结果表明:当迷宫间隙、迷宫齿齿高和齿距一定时,齿形变化对迷宫密封的密封性能影响较大,其中梯形齿形成的迷宫空腔对气体的能量耗散效果最为理想,因而阻漏效果最明显,其次是矩形齿、圆形齿和三角形齿;动网格分析技术能够更加真实、准确地体现出活塞连续运动时气体在迷宫空腔内能量耗散的过程,计算结果更加真实准确。

    Abstract:

    By using dynamic meshes technique,four different mazes tooth structure were numerically simulated to study on the effects on the straightthrough labyrinth compressor sealing performance by tooth.The results show that,when the gap,labyrinth tooth height and pitch are constants,the changes of tooth profile have greater effects on sealing performance of the labyrinth seal,among which the labyrinth cavity formed by trapezia tooth has optimal effects on energy consumption,so its Leak proof effect is the best,followed of which is the tooth profiles of rectangle,round,and triangular tooth.The dynamic meshes analysis technique can even more truly and accurately show the energy consumption process of air in the labyrinth cavity during continuous motion of the piston,therefore the calculation result is more true and accurate.

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巴鹏,张书天,张秀珩.齿形结构对迷宫密封性能影响的动网格技术分析[J].润滑与密封,2015,40(10):55-60.
.[J]. Lubrication Engineering,2015,40(10):55-60.

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  • 在线发布日期: 2016-01-08
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