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[1]谷天平,练章华,陈俊文,等.双金属复合管线应力分析中当量折算模型的建立与应用*[J].中国安全生产科学技术,2022,18(10):123-129.[doi:10.11731/j.issn.1673-193x.2022.10.018]
　GU Tianping,LIAN Zhanghua,CHEN Junwen,et al.Establishment and application of equivalent conversion model in stress analysis of bimetal clad pipeline[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(10):123-129.[doi:10.11731/j.issn.1673-193x.2022.10.018]
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双金属复合管线应力分析中当量折算模型的建立与应用*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年10期
页码:
123-129
栏目:
职业安全卫生管理与技术
出版日期:
2022-10-31

文章信息/Info

Title:
Establishment and application of equivalent conversion model in stress analysis of bimetal clad pipeline
文章编号:
1673-193X(2022)-10-0123-07
作者:
谷天平; 练章华; 陈俊文; 史君林; 成旭堂
（1.西南石油大学 油气藏地质及开发工程国家重点实验室，四川 成都 610500；
2.中国石油工程建设有限公司西南分公司，四川 成都 610041）
Author(s):
GU Tianping;  LIAN Zhanghua;  CHEN Junwen;  SHI Junlin;  CHENG Xutang
(1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu Sichuan 610500,China;
2.China Petroleum Engineering and Construction Corporation Southwest Company,Chengdu Sichuan 610041,China)
关键词:
双金属复合管; 当量折算方法; 有限元; 应力分析; CAESAR Ⅱ
Keywords:
bimetal lined pipe;  equivalent conversion method;  finite element;  stress analysis;  CAESAR Ⅱ
分类号:
X93;TE973
DOI:
10.11731/j.issn.1673-193x.2022.10.018
文献标志码:
A
摘要:
针对目前高腐蚀性气田的集输系统管线应力分析标准中，未给出双金属复合管线的强度校核方法，依据当量折算理论，将双金属复合管的几何与材料特性转化为等效单层管，通过有限元法验证双层管与等效管模型的计算精度。研究结果表明：利用当量折算理论，可以快速将双金属管外径、壁厚、弹性模量、热膨胀系数、密度等参数等效转化为单层管道相关参数。经实际应用检验，该方法在解决工程问题时具备一定的实用性与准确性；双金属复合管系统当量折算模型具备计算方便和精度高等优点，该模型可用于双金属复合管线结构设计和强度校核。研究结果可为双金属复合管线的强度校核提供1种参考方法。
Abstract:
Aiming at the problem that the strength checking method of bimetal clad pipeline is not given in the stress analysis standards at home and abroad for the bimetal lined pipeline used in the gathering system of high corrosive gas field,according to the equivalent conversion theory,the geometric and material characteristics of bimetal clad pipe were transformed into the equivalent single-layer pipe,and the calculation accuracy of bimetal clad pipeline and equivalent pipe model were verified by the finite element method.The results showed that the parameters such as the outer diameter,wall thickness,elastic modulus,thermal expansion coefficient and density of bimetal clad pipe could be equivalently converted into the single-layer pipe quickly by using the equivalent conversion theory.The practical application indicated that this method had both certain practicability and accuracy in solving the engineering problems.The equivalent conversion model of bimetal clad pipeline system had the advantages of convenient calculation and high precision,and can be used for the structural design and strength check of bimetal clad pipeline.The results can provide a reference method for the strength check of bimetal clad pipelines.

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备注/Memo

备注/Memo:
收稿日期： 2022-03-22
* 基金项目： 国家自然科学基金项目（51974271）；中石油资助项目（CPECC2019KJ13）
作者简介： 谷天平，博士研究生，主要研究方向为双金属衬里复合管失效机理与控制。
更新日期/Last Update: 2022-11-13