压力容器2017，Vol.34Issue(11)：41-46,54,7.DOI:10.3969/j.issn.1001-4837.2017.11.006
核级石墨密封垫片应力补偿机理研究
Study on Stress Compensation Mechanism of Nuclear Graphite Gasket
吴延泽 1周先军 1吉日木图 1刁晓勇 1程增康 1黄志强2
作者信息
- 1. 中国石油大学(华东)机电工程学院,山东青岛266580
- 2. 滨州双峰石墨密封材料有限公司,山东东营256615
- 折叠
摘要
Abstract
Taking the nuclear graphite gasket as the research object,the performance of gasket compression resilience and sealing properties were studied by experiments and the finite element software ANSYS was used to simulate the flange connection.The stress distribution law of gasket at normal temperature and high temperature conditions were analyzed,and the stress compensation mechanism was studied.The results showed that:In the case of preloading,the bolt preloading force was undertaken by the graphite ring and the outer ring of the metal.The excess load was undertaken by the outer ring of the metal and the load is released in the process of internal pressure rise to compensate stress and the gasket stress is basically unchanged in a certain range of load bearing.Under the condition of high temperature,the pressure fluctu ate in a certain range,and the gasket is maintained a steady state of stress.The effectiveness of the gasket stress compensation mechanism is confirmed.关键词
核级石墨密封垫片/压缩回弹性能/密封性能/有限元分析/应力补偿机理Key words
nuclear grade graphite gasket/compression resilience performance/sealing performance/finite element analysis/mechanism of stress compensation分类
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吴延泽,周先军,吉日木图,刁晓勇,程增康,黄志强..核级石墨密封垫片应力补偿机理研究[J].压力容器,2017,34(11):41-46,54,7.
