文献类型：期刊文献

中文题名：基于泄漏率的垫片系数试验及分析

英文题名：Test and Analysis of Gasket Factors Based on Leakage Rate

作者：纪一丹[1];章兰珠[1]

机构：[1]华东理工大学机械与动力工程学院

年份：2019

卷号：44

期号：8

起止页码：99

中文期刊名：润滑与密封

外文期刊名：Lubrication Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：国家自然科学基金面上项目(51675183);国家重点研发计划专项(2017YFF0210400)

语种：中文

中文关键词：垫片系数;泄漏率;螺栓法兰接头

外文关键词：gasket factors;leakage;bolted flanged joint

摘要：在ASME标准中,采用了基于强度的满足泄漏率等级的垫片系数m和垫片预紧应力y,而没有考虑到接头的泄漏率要求。研究基于泄漏率的垫片系数m(L)、垫片预紧应力y(L),以及EN1591-1中提出的基于泄漏率的安装条件下垫片最小应力和服役条件下垫片最小应力;采用金属缠绕垫片进行基于泄漏率的垫片系数试验,推荐一种基于泄漏率的m(L)、y(L)的测试方法。根据该试验方法和EN13555提出的方法进行垫片系数的试验,并对2种体系下基于泄漏率的垫片系数进行比较。结果表明:基于泄漏率方法得到的m(L)、y(L)值,在低泄漏率要求等级下是可靠的,可供工程实际参考使用。
In ASME standard,strength-based gasket factor M and gasket prestressing stress y satisfying the leak rate grade are adopted,however,the leak rate requirement of joints is not taken into account.The leakage rate based gasket coefficient m( L),gasket prestressing stress y( L),and the minimum stress of the gasket at installation and service conditions based on leakage rate proposed in EN1591-1 were studied.The test of gasket coefficient based on leakage rate was carried out with metal wound gaskets,and a test method of m( L) and y( L) based on leakage rate was recommended.According to the test method and the method in EN13555,the gasket coefficient was tested and compared.The result show that the values of m( L) and y( L) obtained by the test method based on leakage rate are reliable under the low leakage rate requirement level,which is available for practical engineering.