Prediction of Leakage Rates Through Sealing Connections with Nonmetallic Gaskets  

作　　者：顾伯勤 陈晔 朱大胜 

机构地区：[1]College of Mechanical and Power Engineering,Nanjing University of Technology,Nanjing 210009,China

出　　处：《Chinese Journal of Chemical Engineering》2007年第6期837-841,共5页中国化学工程学报（英文版）

基　　金：Supported by the Funds for Outstanding Scientists of Jiangsu Province of China (No.2005-6).

摘　　要：In this work, a model of gas leakage through nonmetallic gaskets was developed in order to predict leakage rate of gasket sealing connections. The model was verified by the leakage experiments on two types of gaskets： compressed non-asbestos fiber gasket and flexible graphite gasket reinforced with tanged metal sheet. The coefficients in the leakage rate formula were obtained by regression of experimental data for each type of gasket, The model was also validated against the experimental leakage data by other researchers and shown to produce accurate predications. Furthermore, the model was applied to a bolted flanged connection in service in order to assess the tightness of the connection.在这个工作，通过非金属的垫板的煤气的漏的一个模型被开发以便预言封上连接的垫板的漏率。模型被垫板的二种类型的漏实验验证：压缩非石棉纤维垫板和与 tanged 金属表增强的灵活石墨垫板。在漏率公式的系数被试验性的数据的回归为垫板的每种类型获得。模型被另外的研究人员也对试验性的漏数据验证并且出现生产精确断言。而且，模型在服务被用于一个固定 flanged 连接以便估计连接的紧密。

关 键 词：GASKET leakage model leakage rate TIGHTNESS 

分 类 号：O35[理学—流体力学] TH136[理学—力学]