基于弹性波监测的油气管道管跨定位研究
Research on Pipeline Span Locating Based on Elastic Wave Detection
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- DOI:
- 作者:
- 郑贤斌1,2, 陈国明2, 袁超红2
ZHENG Xian-bin1,2, Cheng Guoming2, Yuan Caohong2
- 作者单位:
- 1. 中国石油规划总院环保与安全研究所, 北京 100083;
2. 中国石油大学机电工程学院, 山东东营 257061
School of Environmental Protection and Safety, PetroChina Planning and Engineering Institute, Beijing 100083, China
- 关键词:
- 油气管道;管跨;弹性波;监测;定位
oil and gas;pipelines pipeline;span elastic wave;detection locating;SPECIAL TOPICS
- 摘要:
- 针对油气管道中存在的管跨现象,为实现管跨破坏的早期预警,文章提出一种基于弹性波监测管跨的新思路。鉴于油气管道中的弹性波传播问题,应用有限元分析方法,将管道结构简化为一维弹性直杆模型。采用ADINA软件对弹性波在管道中的传播过程进行有限元分析,得到了典型节点的位移—时间历程和典型单元的应力云图,计算结果表明该方法可行。开展基于弹性波监测的油气管道管跨定位研究,可为油气管道安全预警技术研究提供参考,工程实用价值较大。
Regarding the pipeline span phenomena existed in oil and gas pipelines, this paper proposes a new thought of pipeline span locating based on the elastic wave detection in order to implement an early alert for pipeline span destruction. Aimed at the problem of elastic wave propagation in oil and gas pipelines, the finite element method is applied to the simplified model of one-dimension elastic straight bars for modeling pipeline structure. By using ADINA software, the FEM analysis on elastic wave propagation in oil and gas pipelines was carried out. The displacement-time history relation for typical nodes and the stress nephogram for typical elements are obtained. The calculated results show that the method is viable.2007,1(1): 5-7 收稿日期:2006-10-23分类号:TE973.4基金项目:高等学校博士学科点专项科研基金项目(20030425014);中国石油大学优秀博士学位论文培育资助项目(B2005-9)作者简介:郑贤斌(1978- ),男,四川遂宁人,工程师,毕业于中国石油大学(华东),博士,现主要从事油气管道安全运行保障技术、石油装备安全可靠性工程、危险源辨识与安全控制工作。参考文献:
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