法兰结构参数对新型双楔角环垫密封性能的影响及显著性分析
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摘要
采用数值模拟方法研究了法兰结构参数对双楔角环垫密封接触压力及有效密封宽度的影响,并通过正交实验法对法兰结构参数进行了显著性分析.结果表明,随法兰各结构尺寸减小,双楔角环垫主、从密封面最大接触压力不同程度增大.法兰结构参数对新型双楔角环垫密封性能影响的显著性顺序为主法兰小端外径>法兰外径>锥颈大端厚度>锥颈高度>法兰有效厚度.主法兰小端外径对双楔角环垫主、从密封面最大接触压力影响最大.
The flange structure parameters which influenced the contact pressure and effective sealing width of ring gasket were analyzed by numerical simulation method. The significance analysis on the flange structure parameters was done by orthogonal test method. The results showed that the maximum contact pressure of the male-female surfaces of the ring gasket increased with the decreasing the flange structure sizes. The significant influence sequence of the flange structure parameters to the key indexes is as follow: male flange outer end diameter>flange outside diameter>neck thickness>neck height>flange effective thickness. And the outer end diameter of the male flange had the greatest influence on the maximum contact pressure of the male-female surface of the ring gasket.
The flange structure parameters which influenced the contact pressure and effective sealing width of ring gasket were analyzed by numerical simulation method. The significance analysis on the flange structure parameters was done by orthogonal test method. The results showed that the maximum contact pressure of the male-female surfaces of the ring gasket increased with the decreasing the flange structure sizes. The significant influence sequence of the flange structure parameters to the key indexes is as follow: male flange outer end diameter>flange outside diameter>neck thickness>neck height>flange effective thickness. And the outer end diameter of the male flange had the greatest influence on the maximum contact pressure of the male-female surface of the ring gasket.
引文
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[2]Gardner C,Madazhy R,Howard E.Analysis of Contact Pressure Distribution on a Pass Partition Gasket in Conjunction with a Double-tapered Seal in High Pressure Heat Exchanger Closure[C]//Proceedings of ASME 2010 Pressure Vessels and Piping Conference,2009:297-303.
[3]刘贞飞,张印桐,严国华.Taper-Lok法兰在南海海管连接中的应用[J].中国水运,2010,(10):223-225.Liu Z F,Zhang Y T,Yan G H.Application of Taper-Lok Flange in Sea-pipe Connection of South China Sea[J].China Water Transport,2010,(10):223-225.
[4]韩宇,栗国浩,袁李峰.Taper-Lok法兰在海底管线上的应用[J].石油矿场机械,2008,37(6):88-89.Han Y,Li G H,Yuan L F.Application of Taper-Lok Flanges on Subsea Pipelines[J].Oil Field Equipment,2008,37(6):88-89.
[5]荣文波,陆晓峰,程可.带八角垫与双楔角环垫的法兰接头密封性能比较[J].润滑与密封,2015,40(8):122-127.Rong W B,Lu X F,Cheng K.Comparison of Sealing Performance of Bolted Flange Joints with Octagonal Gasket and Double Tapered Gasket[J].Lubrication Engineering,2015,40(8):122-127.
[6]徐永杰,陆晓峰.新型双楔角环垫结构参数对密封接触压力的影响[J].固体火箭技术,2013,36(6):805-810.Xu Y J,Lu X F.Effect of Structure Parameters of a New Double Wedge Angle Ring Gasket on Its Seal Contact Pressure[J].Journal of Solid Rocket Technology,2013,36(6):805-810.
[7]陆晓峰,徐永杰.新型双楔角环垫结构参数显著性分析与设计[J].固体火箭技术,2014,37(2):247-252.Lu X F,Xu Y J.Significant Analysis and Design on the Structure Parameters of a New Double Wedge Angle Ring Gasket[J].Journal of Solid Rocket Technology,2014,37(2):247-252.
[8]The American Society of Mechanical Engineers.Pipe Flanges and Flange Fittings[S].New York:The American Society of Mechanical Engineers,2013.
[9]诸士春,陆晓峰,巩建鸣.Al包覆层厚度对Al-Ni Ti复合垫片密封面压紧力影响的有限元分析[J].固体火箭技术,2012,35(5):683-687.Zhu S C,Lu X F,Gong J M.Effect of Al Cover Thickness on Contact Stress of Al-Ni Ti Gasket Using FEM[J].Journal of Solid Rocket Technology,2012,35(5):683-687.
[10]王慧娟,顾伯勤.改良双锥密封结构及其设计方法[J].南京工业大学学报,2015,37(1):65-69.Wang H J,Gu B Q.An Improved Double-cone Sealing Structure and Its Design Method[J].Journal of Nanjing Tech University,2015,37(1):65-69.
[11]国家质量监督检验检疫总局.压力容器:GB 150-2011[S].北京:中国标准出版社.2011-11-21.The State Administration of Quality Supervision,Inspection and Quarantine.Pressure Vessels:GB 150-2011[S].Beijing:Standards Press of China.2011-11-21.
[12]周先军.高温大口径法兰瞬态密封设计方法研究[D].东营:中国石油大学,2008:101-102.Zhou X J.Research on Transient Sealing Design Method of Large Caliber Flange at High Temperature[D].Dongying:China University of Petroleum,2008:101-102.