留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

斯特林制冷机间隙密封泄漏量的影响因素权重分析

徐安波 陈晓屏 李昊岚 孙皓

徐安波, 陈晓屏, 李昊岚, 孙皓. 斯特林制冷机间隙密封泄漏量的影响因素权重分析[J]. 红外技术, 2021, 43(1): 68-72.
引用本文: 徐安波, 陈晓屏, 李昊岚, 孙皓. 斯特林制冷机间隙密封泄漏量的影响因素权重分析[J]. 红外技术, 2021, 43(1): 68-72.
XU Anbo, CHEN Xiaoping, LI Haolan, SUN Hao. Weight Analysis of Influencing Factors of Clearance Seal Leakage in Stirling Cryocoolers[J]. INFRARED TECHNOLOGY, 2021, 43(1): 68-72.
Citation: XU Anbo, CHEN Xiaoping, LI Haolan, SUN Hao. Weight Analysis of Influencing Factors of Clearance Seal Leakage in Stirling Cryocoolers[J]. INFRARED TECHNOLOGY, 2021, 43(1): 68-72.

斯特林制冷机间隙密封泄漏量的影响因素权重分析

详细信息
    作者简介:

    徐安波(1992-),男,云南曲靖人,硕士研究生,研究方向:小型低温制冷机。E-mail:1006514396@qq.com

    通讯作者:

    孙皓(1979-),男,云南通海人,研高工,博士,主要从事小型低温制冷机研究。E-mail:652700@sina.com

  • 中图分类号: TH136

Weight Analysis of Influencing Factors of Clearance Seal Leakage in Stirling Cryocoolers

  • 摘要: 为分析斯特林制冷机间隙密封泄漏量影响因素权重,结合同心环形缝隙流动理论,确定影响因素包括间隙厚度、密封长度、间隙两端压差、转速、间隙内径以及活塞冲程。通过正交试验搭建32组数学模型,基于计算流体CFD数值模拟的方法,研究分析不同密封间隙的泄漏情况。利用方差分析对仿真结果进行处理,结果表明间隙厚度对斯特林制冷机的泄漏量影响最大;压差、密封长度、活塞冲程以及转速对泄漏量影响依次减小;间隙内径对泄漏量影响最小。这对斯特林制冷机间隙密封减小泄漏量的设计提供了参考。
  • 图  1  活塞间隙密封示意图

    Figure  1.  The model of seal clearance

    图  2  环形间隙二维轴对称模型

    Figure  2.  Two dimensional axisymmetric model of annular clearance

    图  3  流体域网格划分

    Figure  3.  Computational gride of fluid domain

    图  4  因素水平效应曲线

    Figure  4.  The effect curves at the factor level

    表  1  影响因素设置

    Table  1.   Factors setting table

    Levels A/mm B/mm C/Pa D/(r/min) E/mm F/mm
    1 4 9.5 200000 1000 12 2
    2 8 13.5 500000 2000 14 2.6
    3 12 17.5 800000 3000 17 3.2
    4 16 21.5 1100000 4000 21 4
    下载: 导出CSV

    表  2  正交试验表

    Table  2.   Orthogonal test table

    Test numbers Clearance thickness Sealing gap length Pressure difference Motor speed Clearance diameter Piston stroke Nullcolumn Leakage Sum of evaluation indexes yi
    1 1 1 1 1 1 1 1 1.27566E-05 0.99825
    2 1 2 2 2 2 2 2 4.06038E-05 0.98505
    3 1 3 3 3 3 3 3 1.78506E-04 0.91969
    4 1 4 4 4 4 4 4 3.01509E-04 0.86139
    5 2 1 1 2 2 3 3 1.25877E-04 0.94463
    6 2 2 2 1 1 4 4 1.39146E-04 0.93834
    7 2 3 3 4 4 1 1 2.89947E-04 0.86687
    8 2 4 4 3 3 2 2 1.01106E-03 0.52507
    9 3 1 2 3 4 1 2 9.60161E-04 0.54920
    10 3 2 1 4 3 2 1 5.26293E-04 0.75484
    11 3 3 4 1 2 3 4 9.09569E-04 0.57318
    12 3 4 3 2 1 4 3 4.62742E-04 0.78497
    13 4 1 2 4 3 3 4 8.76374E-04 0.58891
    14 4 2 1 3 4 4 3 8.34327E-04 0.60884
    15 4 3 4 2 1 1 2 1.31809E-03 0.37955
    16 4 4 3 1 2 2 1 8.93187E-04 0.58094
    17 1 1 4 1 4 2 3 8.39161E-04 0.60655
    18 1 2 3 2 3 1 4 6.59262E-05 0.97305
    19 1 3 2 3 2 4 1 2.42253E-05 0.99281
    20 1 4 1 4 1 3 2 9.06550E-06 1.00000
    21 2 1 4 2 3 4 1 1.86725E-03 0.11925
    22 2 2 3 1 4 3 2 6.24450E-04 0.70832
    23 2 3 2 4 1 2 3 3.42238E-04 0.84208
    24 2 4 1 3 2 1 4 6.29290E-05 0.97447
    25 3 1 3 3 1 2 4 7.04118E-04 0.67056
    26 3 2 4 4 2 1 3 1.02023E-03 0.52073
    27 3 3 1 1 3 4 2 2.47633E-04 0.88692
    28 3 4 2 2 4 3 1 6.38515E-04 0.70165
    29 4 1 3 4 2 4 2 2.11886E-03 0.00000
    30 4 2 4 3 1 3 1 1.82858E-03 0.13758
    31 4 3 1 2 4 2 4 9.14909E-04 0.57065
    32 4 4 2 1 3 1 3 6.08598E-04 0.71583
    下载: 导出CSV

    表  3  极差分析表

    Table  3.   Range analysis table

    Clearance thickness/μm Sealing gap length/mm Pressure difference/Pa Motor speed/(r/min) Clearance diameter/mm Piston stroke/mm
    T1 7.3368 4.4774 6.7386 6.0083 5.7513 5.9779
    T2 5.919 5.6268 6.3139 5.4588 5.5718 5.5358
    T3 5.4421 6.0318 5.5044 5.3782 5.4836 5.574
    T4 3.5823 6.1443 3.7233 5.4348 5.4735 5.1925
    Range R 3.7545 1.667 3.0153 0.63011 0.27787 0.78542
    下载: 导出CSV

    表  4  方差分析表

    Table  4.   Variance analysis table

    Sources of variation Sum of quadratic Degree of freedom Mean squared F value F Critical value Significant test
    A 0.9013 3 0.3004 18.222 (2.9912;4.6755) Highly significant
    B 0.2175 3 0.0725 4.3975 (2.9912;4.6755) Significant
    C 0.6667 3 0.2222 13.4785 (2.9912;4.6755) Highly significant
    D 0.0324 3 0.0108 0.6559 (2.9912;4.6755) Non-significant
    E 0.0062 3 0.0021 0.1255 (2.9912;4.6755) Non-significant
    F 0.0388 3 0.0129 0.7836 (2.9912;4.6755) Non-significant
    Null column 0.1173 3 0.0391 2.3707 (2.9912;4.6755) Non-significant
    Error 0.4122 25 0.0165 - - -
    Sum 1.9802 31 - - - -
    下载: 导出CSV
  • [1] Margaret M, Asantha C, David T, et al. Overview of the Origins Space telescope: science drivers to observatory requirements (Conference Presentation)[C]//Space Telescopes and Instrumentation, 2018: 1-8.
    [2] Timothy P M, Rishi N P, Jeremy D W, et al. Cryogenic packaging of an optomechanical crystal[J]. Optics Express, 2019, 35: 28782-2871.
    [3] ZHOUWJ, GAN Z H, ZHANG X, et al. Clearance loss analysis in linear compressor with CFD Method[C]//International Cryocooler Conference, 2010: 353-359.
    [4] Reed J, Bailey P B, Dadd M W, et al. Motor and thermodynamic losses in linear cryocooler compressors[J]. Aip Conference Proceedings, 2005, 823: 361-368.
    [5] Bailey P, Dadd M, Stone C, et al. Gas spring losses in linear clearance-seal compressors[C]//International Cryocooler Conference, 2007: 345-353.
    [6] 陈曦, 武卫东, 周志刚, 等.自由活塞式斯特林制冷机间隙密封技术研究[J].低温与超导, 2008, 36(5): 5-8. https://www.cnki.com.cn/Article/CJFDTOTAL-DWYC200805001.htm

    CHEN Xi, WU Weidong, ZHOU Zhigang, et al. Study on the clearance seal in free-piston Stirling cooler[J]. Cryogenic & Superconductivity, 2008, 36(5): 5-8. https://www.cnki.com.cn/Article/CJFDTOTAL-DWYC200805001.htm
    [7] 卢明.间隙密封式伺服液压缸密封特性研究及仿真[D].武汉: 武汉科技大学, 2010.

    LU Ming. Research and Simulation on The Gap Type Servo Hydraulic Cylinder Seals[D]. Wuhan: Wuhan University of Science and Technology, 2010.
    [8] 马诗曼, 陈曦, 李静.自由活塞式斯特林制冷机压缩活塞间隙密封泄漏的数值模拟[J].低温工程, 2011, 181(3): 24-28. https://www.cnki.com.cn/Article/CJFDTOTAL-DWGC201103008.htm

    MA Shiman, CHEN Xi, LI Jing. Numerical simulations of seal leakage of compression piston in free piston Stirling cooler[J]. Cryogenics, 2011, 181(3): 24-28. https://www.cnki.com.cn/Article/CJFDTOTAL-DWGC201103008.htm
    [9] QI Y X, MENG X Q, MU D F, et al. Study on mechanism and factors affecting the gas leakage through clearance seal at nano-level by molecular dynamics method[J]. Energy, 2016, 102: 252-259. doi:  10.1016/j.energy.2016.02.087
  • 加载中
图(4) / 表(4)
计量
  • 文章访问数:  30
  • HTML全文浏览量:  10
  • PDF下载量:  8
  • 被引次数: 0
出版历程
  • 收稿日期:  2020-10-22
  • 修回日期:  2020-12-31
  • 刊出日期:  2021-01-20

目录

    /

    返回文章
    返回