高压自紧式卡箍密封结构强度与密封机制分析  

Strength and Sealing Mechanism Analysis of the High Pressure Self-Sealing Clamp Structure

作　　者：黄贤滨[1] 单广斌[1] 邱枫 徐志 Huang Xianbin;Shan Guangbin;Qiu Feng;Xu Zhi(State Key Laboratory of Safety and Control for Chemicals,SINOPEC Research Institute of Safety Engineering,Shandong,Qingdao,266071;Chengdu Zhiyuan Machine Science Technology Co.,Ltd.,Sichuan,Chengdu,610000)

机构地区：[1]中国石化青岛安全工程研究院化学品安全控制国家重点实验室,山东青岛266071 [2]成都植源机械科技有限公司,四川成都610000

出　　处：《安全、健康和环境》2019年第10期29-33,共5页Safety Health & Environment

摘　　要：为了保障高压自紧式卡箍密封结构安全应用,对高压自紧式卡箍结构的受力进行分析,探讨了高压自紧式卡箍结构的密封机制,采用有限元分析软件ANSYS,以公称直径150 mm高压自紧式卡箍密封结构为例,进行了结构强度仿真。结果表明,高压自紧式卡箍密封结构呈双重密封结构,满足强度要求。密封环和管接头在管道轴向密封以及管道周向密封构成了双重密封结构,其中密封环和管接头接触压力远大于传统法兰结构的密封比压。In order to ensure the safe application of the high pressure self sealing clamp structure,based on the stress analysis,the sealing mechanism was discussed.Taking the 150 mm high pressure self sealing clamp structure as an example,the structural strength simulation was carried out using finite element analysis software ANSYS.The results showed that the double sealing formed between sealing ring and the pipe joints axially and circumferentially met the strength requirements.The contact pressure between the sealing rings and pipe joints was much greater than that of the traditional flange structure.

关 键 词：法兰 应力分析 卡箍 密封 有限元分析 

分 类 号：TE9[石油与天然气工程—石油机械设备]