| 高压管式反应器夹套跨管泄漏失效的数值分析 |
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| 引用本文： | 刘伟,冀晓辉.高压管式反应器夹套跨管泄漏失效的数值分析[J].茂名学院学报,2011,21(3):31-34. |
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| 作者姓名： | 刘伟 冀晓辉 |
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| 作者单位： | 广东石油化工学院,机电工程学院,广东,茂名,525000 |
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| 基金项目： | 茂名市重点科技计划项目资助(203635) |
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| 摘 要： | 为了探究高压管式反应器夹套跨管失效机理,在进行表观分析的基础上,采用数值计算的方法,对跨管内脱盐水流动进行了分析。结果表明,由于水流的90°转向,在跨管入口产生严重的偏流效应,而偏流又导致水流的局部增速和集中冲刷,致使跨管入口部分冲刷严重,在弯管入口处内侧产生剪切应力极值区,导致泄漏失效。
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| 关 键 词： | 高压管式反应器 跨管 偏流 失效 |
Numerical Analysis on Leaking Failure Mechanism of Spanning Tube in Jacket of High-Pressure Tube Reactor |
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| LIU Wei,JI Xiao-hui.Numerical Analysis on Leaking Failure Mechanism of Spanning Tube in Jacket of High-Pressure Tube Reactor[J].Journal of Maoming College,2011,21(3):31-34. |
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| Authors: | LIU Wei JI Xiao-hui |
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| Institution: | LIU Wei,JI Xiao-hui(College of Machinery and Electronic Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,China) |
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| Abstract: | In order to study the failure mechanism of the spanning tube in the jacket of high-pressure tube reactor,based on the surface analysis,the method of numerical computation is employed to analyze the flow of desalination water in the spanning tube.The results show that a serious deflection flow action comes into being at the inlet of the spanning tube in which the water changes direction at 90°.This flow results in the condition that the velocity of water increases and erodes seriously in a small area at the inlet of the spanning tube.Finally,the maximum shear stress causes the leaking failure at the inlet of the elbow of spanning tube. |
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| Keywords: | high-pressure tube reactor spanning tube deflection flow failure |
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