Prediction of leakage rates through sealing connections with nonmetallic gaskets

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Prediction of leakage rates through sealing connections with nonmetallic gaskets

GU Boqin; CHEN Ye; ZHU Dasheng

College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009, China

Received:2007-02-22 Revised:1900-01-01 Online:2007-12-28 Published:2007-12-28
Contact: GU Boqin

非金属平垫片密封连接的泄漏率预测

顾伯勤; 陈晔; 朱大胜

College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009, China

通讯作者: 顾伯勤

Abstract

Abstract: 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 ac-curate predications. Furthermore, the model was applied to a bolted flanged connection in service in order to assess the tightness of the connection.

Key words: gasket, leakage model, leakage rate, tightness

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 ac-curate predications. Furthermore, the model was applied to a bolted flanged connection in service in order to assess the tightness of the connection.

关键词: gasket;leakage model;leakage rate;tightness

GU Boqin, CHEN Ye, ZHU Dasheng. Prediction of leakage rates through sealing connections with nonmetallic gaskets[J]. .

顾伯勤, 陈晔, 朱大胜. 非金属平垫片密封连接的泄漏率预测[J]. CIESC Journal.

References

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