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法兰密封系统螺栓加载方式试验研究
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Indexed by:期刊论文

Date of Publication:2012-11-30

Journal:压力容器

Included Journals:ISTIC

Volume:29

Issue:11

Page Number:7-12

ISSN No.:1001-4837

Key Words:ASME PCC-1;JIS B 2251;螺栓;加载方法;均匀螺栓载荷

Abstract:均匀的螺栓载荷对法兰密封性能有极为重要的意义,由于螺栓间存在弹性交互作用,采用扭矩增量控制法按一定加载顺序加载才能降低螺栓载荷离散程度.试验研究了ASME PCC-1传统的加载方法(LEGACY方法)和JIS B 2251加载方法在DN100法兰8螺栓结构中的加载规律,以及载荷渐增顺次螺栓加载方法.采用应变片和应变仪实时监测螺栓载荷,采用力矩扳手加载.结果表明,ASME传统加载方法较为繁琐,JIS B 2251加载方法效率高且不易出错;以扭矩增量控制法顺次加载也能获得均匀的螺栓载荷;在保证充足预紧轮次的情况下,加载方式对最终螺栓载荷的离散程度影响不大,最后以目标载荷顺次加载几轮非常有必要.

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Gender:Male

Alma Mater:大连理工大学

Degree:Doctoral Degree

School/Department:化工学院

Discipline:Chemical Process Equipment. Safety Science and Engineering

Business Address:大连理工大学西校区H509

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