| 600 MW超临界锅炉汽水分离器内压应力有限元分析 |
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| 引用本文： | 李斌,李建伟,杨冬. 600 MW超临界锅炉汽水分离器内压应力有限元分析[J]. 锅炉技术, 2009, 40(1) |
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| 作者姓名： | 李斌 李建伟 杨冬 |
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| 作者单位： | 华北电力大学,动力系,河北,保定,071003;西安交通大学,陕西,西安,710049 |
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| 基金项目： | 国家科技支撑计划，华北电力大学博士学位教师科研基金 |
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| 摘 要： | 采用有限元方法对600 MW超临界锅炉汽水分离器进行应力计算,得出了汽水分离器进口连接管区域内压引起的机械应力分布规律和应力集中状况.计算结果表明,该区域存在着明显的应力集中现象,最大应力出现在筒体内壁靠近连接管椭圆孔长轴处,应力集中系数为3.48,筒体外壁同样存在应力集中,但应力水平比内壁低.汽水分离器各连接管的应力分布规律基本相同.将6根连接管与1根连接管时筒体的应力分布进行了比较,结果表明,接管数目的增加使汽水分离器应力集中更加明显.
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| 关 键 词： | 超临界锅炉 汽水分离器 内压应力 有限元分析 |
Mechanical Stress Analysis of a 600 MW Supercritical Boiler Water Separator Based on the Finite Element Method |
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| LI Bin,LI Jian-wei,YANG Dong. Mechanical Stress Analysis of a 600 MW Supercritical Boiler Water Separator Based on the Finite Element Method[J]. Boiler Technology, 2009, 40(1) |
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| Authors: | LI Bin LI Jian-wei YANG Dong |
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| Affiliation: | LI Bin1,LI Jian-wei1,YANG Dong21.Department of Power Engineering,North China Electric Power University,Baoding071003,China,2.Xi'an Jiaotong University,Xi'an 710049 |
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| Abstract: | The internal pressure stress distribution and stress concentrations for the water separator of a 600 MW supercritical boiler are analyzed by the finite element method.The results showed that the maximum values of all kinds of stresses were at the inside of the conjunction area between the pipe and the water separator cylinder,and the value of the maximum stress concentration factor is 3.48.The stress concentration is also occur on the outside surface of the conjunction area between the pipe and the water se... |
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| Keywords: | supercritical boiler water separator mechanical stress finite element analysis |
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