Experimental Research on the Gasket Parameters of Flange Sealing Structure Based on Leakage Rate

被引：0
|
作者：
Liu Y. [1 ,2 ,3 ]
Chen X. [2 ]
Fan Z. [2 ]
Wang L. [2 ]
Xue J. [2 ]
机构：
[1] College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou
[2] National Technical Research Center on Safety Engineering of Pressure Vessel, Hefei General Machinery Research Institute, Hefei
[3] Engineering Research Center of Process Equipment and Remanufacturing, Ministry of Education, Zhejiang University of Technology, Hangzhou
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2020年 / 56卷 / 21期
关键词：
Flange sealing structure; Gasket parameters; Graphite spiral wound gasket; Leakage rate;
D O I：
10.3901/JME.2020.21.168
中图分类号：
学科分类号：
摘要：
In respect of the pressure vessels, yield factor y and maintenance factor m are two significant gasket parameters for flange design. The values of y and m given in the current ASME VIII code are empirical values and not related to the leakage rate. The shortages of current standard test methods for gasket parameters of flange sealing structure based on leakage rate are analyzed. The sealing performance test of graphite spiral wound gasket under different medium pressure and different loading/unloading cycles is carried out, a more reasonable and practical test method for gasket parameters y and m is proposed. By fitting the relationship between the leakage rate of different initial gasket surface pressure and gasket maintenance factor m, the values of y and m that meet the requirements of different tightness class are obtained, and the values of y and m are optimized to make it more convenient for engineering application. The new gasket parameters test method considers the correlation between y and m, which can reflect the gasket characteristics more accurately and comprehensively, providing support for the design of flange sealing structure based on leakage rate and reducing the leakage rate of petrochemical plant. © 2020 Journal of Mechanical Engineering.
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页码：168 / 176
页数：8
相关论文
共 14 条
  • [1] CHWN Xuedong, CAI Jun, LU Yunrong, Et al., Structural design, manufacturing and maintenance technology of flange seal for pressure equipment based on leak rate control, ASME Pressure Vessels & Piping Conference, pp. 1-7, (2015)
  • [2] F3149-15 Standard practice for determining the maintenance factor(m)and Yield factor(y)loading constants applicable to gasket materials and designs, (2015)
  • [3] RICE D A, WATERLAND A F, BAUSMAN A R., Exploring M&Y gasket factors and their degree of correlation with proposed PVRC gasket factors, Proceedings of the ASME 2017 Pressure Vessels and Piping Conference, 2, pp. 1-10, (2017)
  • [4] F2836-2018 Standard practice for gasket constants for bolted joint design, (2018)
  • [5] EN1591(1)-2013 flange and their joints-design rules for gasketed circular flange connections-part 1: Calculation method, (2013)
  • [6] EN1591(2)-2008 Flange and their joints-design rules for gasketed circular flange connections-part 2: Gasket parameters, (2008)
  • [7] EN13555-2014 Flange and their joints gasket parameters and test procedures relevant to the design rules to gasketed circular flange connections, (2014)
  • [8] HUBERT L, CEDRIC B., Update of the 《M and Y》values in the new previsions of french codes CODAP and CODETI-development of a testing procedure to determine 《M and Y》values for several tightness classes, Proceedings of the ASME 2009 Pressure Vessels and Piping Conference, 2, pp. 1-5, (2009)
  • [9] SUN Zhaofeng, Research on the test method of the gasket parameters m and y based on the leakage rate, (2015)
  • [10] JI Yidan, ZHANG Lanzhu, Test and analysis of gasket factors based on leakage rate, Lubrication Engineering, 44, 8, pp. 99-103, (2019)
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