[1]王定标,杨国新,尹华杰..非标法兰连接系统结构设计及应力分析[J].郑州大学学报(工学版),2007,28(02):60-63.[doi:10.3969/j.issn.1671-6833.2007.02.016]
　Wang Dingping,Yang Guoxin,Yin Huajie.Structural design and stress analysis of non-standard flange connection system[J].Journal of Zhengzhou University (Engineering Science),2007,28(02):60-63.[doi:10.3969/j.issn.1671-6833.2007.02.016]

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非标法兰连接系统结构设计及应力分析()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

28卷

期数:

2007年02期

页码:

60-63

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Structural design and stress analysis of non-standard flange connection system

作者:

王定标; 杨国新; 尹华杰.

郑州大学,化工学院,河南,郑州,450001, 开封兴化精细化工厂,河南,开封,475002

Author(s):

Wang Dingping; Yang Guoxin; Yin Huajie

关键词:

法兰;  垫片;  螺栓连接;  结构设计;  有限元;  应力

Keywords:

Flange;  gaskets;  bolted connections;  structural design;  finite elements;  Stress

DOI:

10.3969/j.issn.1671-6833.2007.02.016

文献标志码:

A

摘要:

法兰、垫片、螺栓连接系统是压力容器及管道设计中的重要内容,同时也是工程设计及使用过程中容易出现问题的关键部位.由于工程应用需要,对公称直径为450 mm的非标管道法兰、垫片、螺栓以及阀门连接系统进行了设计,开发出膨胀石墨和0Cr18Ni10Ti两种材料覆合的新型垫片.同时,将该系统作为一个整体,考虑到法兰旋转、内压对法兰、垫片、螺栓以及阀门的受力与变形的影响,应用三维有限元技术,分析在螺栓预紧过程和加压过程中法兰连接系统的整体应力分布.结果表明,法兰、螺栓等的应力强度满足要求,垫片应力及残余压紧压力满足密

Abstract:

Flange, gasket and bolted connection system are important contents in the design of pressure vessels and pipelines, and are also the key parts that are prone to problems in the process of engineering design and use. Due to the engineering application needs, the non-standard pipe flange, gasket, bolt and valve connection system with a nominal diameter of 450 mm were designed, and a new gasket covered by expanded graphite and 0Cr18Ni10Ti was developed. At the same time, considering the influence of flange rotation and internal pressure on the force and deformation of flange, gasket, bolt and valve, the three-dimensional finite element technology is applied to analyze the overall stress distribution of the flange connection system in the bolt pretensioning process and the pressurization process. The results show that the stress strength of flanges, bolts, etc. meets the requirements, and the gasket stress and residual compression pressure meet the density

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