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[1]杜明俊,张振庭,张朝阳,等.多相混输管道90°弯管冲蚀破坏应力分析[J].油气储运,2011,30(06):427-430.[doi:10.6047/j.issn.1000-8241.2011.06.006]
　Du Mingjun,Chao Ling,Fu Xiaodong,et al.Analysis of erosion fracture stress of 90° elbow in multi-phase mixed transmission pipeline[J].Oil & Gas Storage and Transportation,2011,30(06):427-430.[doi:10.6047/j.issn.1000-8241.2011.06.006]
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多相混输管道90°弯管冲蚀破坏应力分析

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 30 期数: 2011年06期 页码: 427-430 栏目: 出版日期: 2011-06-25
Title:
Analysis of erosion fracture stress of 90° elbow in multi-phase mixed transmission pipeline
文章编号:
1000-8241(2011)06-0427-04
作者:
杜明俊; 张振庭; 张朝阳; 熊新强; 郭慧军; 王海峰
中国石油集团工程设计有限责任公司华北分公司，河北任丘062552
Author(s):
Du Mingjun; Chao Ling; Fu Xiaodong; et. al??
Du Mingjun ：North China Company，China Petroleum Engineering Co. Limited，Renqiu，Hebei，062552.
关键词:
管道; 弯头; 多相流; 热流固耦合; 冲蚀; 数值模拟; 应力分析
Keywords:
pipeline; elbow; multi-phase flow; fluid-solid-heat coupling; erosion; numerical simulation; stress analysis
分类号:
TE832
DOI:
10.6047/j.issn.1000-8241.2011.06.006
文献标志码:
A
摘要:
建立了热流固耦合控制方程，借助Fluent 和Ansys 软件对多相介质流经管道弯头进行了流场和应力、应变分析，探讨了不同入口速度、管径、弯径比、流体温度对弯头冲蚀失效的影响。研究表明：弯管内壁面剪切应力的大小和分布受多重因素的影响；最大壁面切向应力分布在弯头两颊或下游外拱壁面处，且受流体温度的影响；热应变最大位置出现在弯头两颊和内拱壁面。弯管两颊和下游外拱壁面冲蚀破坏最为严重，为失效高发区。适当降低流速、增大管径和弯径比、升高流体温度均可以有效缓解管道的冲蚀破坏。研究结论可为进一步研究多相混输管道冲刷腐蚀机理提供理论依据。
Abstract:
The fluid-solid-heat coupling equation established is used to analyze the flow field，stress and strain of multiphase medium ?
flowing throughout the pipeline elbow via the Fluent and Ansys software，and further research on the influence of different ?
inlet velocity，pipe diameter，R/D-ratio and liquid temperature on elbow erosion failure is carried out. As the study shown，the ?
magnitude and distribution of shear force acted on the inner surface of elbow are affected by many factors the distribution of the ?
biggest tangential stress is in the two sides or the downstream of outer buttress surface and is affected by liquid temperature. ?
The largest heat strain is in the two sides and inner buttress surface of elbow，in which the most severe erosion is found， ?
that is，it is a highly possible failure part. Appropriately reducing flow speed，enlarging pipe diameter，R/D-ratio and enhancing ?
liquid temperature may efficiently minimize erosion fracture stress to the pipeline. The research outcome can be a theoretical ?
foundation for the further study on erosion mechanisms of multiphase mixed transmission pipeline.??


参考文献/References:

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备注/Memo

作者简介：杜明俊，助理工程师，1983 年生，2011 年毕业于辽宁石油化工大学油气储运工程专业，现主要从事油气田地面工程设计与流体仿真技术的研究工作。电话：15841344152 ；Email：dmj260750009@163.com?? （收稿日期：2010-11-04）

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