| 返修换热器的安全评定 |
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| 引用本文： | 贺小华,尹侠,董金善. 返修换热器的安全评定[J]. 石油化工设备技术, 1998, 0(1) |
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| 作者姓名： | 贺小华 尹侠 董金善 |
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| 作者单位： | 南京化工大学化工设备设计研究所 |
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| 摘 要： | 某化工厂一台进口换热器，由于制造偏差，在封头直边段与筒体相接处产生错边。故采用有限元方法对其进行了应力分析，并对错边部位进行了强度评定。同时，对补焊过的设备也进行了有限元分析。分析结果表明，补焊后错边部位的应力状态得到了明显改善，从而提高了设备的安全性和可靠性
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| 关 键 词： | 换热器 有限元方法 应力分析 安全评定 |
SAFE EVALUATION OF REPAIRED HEAT EXCHANGER |
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| He Xiaohua,Yin Xia,etc.Nanjing university of chemial engineering chemical equipment design and research institute,P.C. SAFE EVALUATION OF REPAIRED HEAT EXCHANGER[J]. Petro-Chemical Equipment Technology, 1998, 0(1) |
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| Authors: | He Xiaohua Yin Xia etc.Nanjing university of chemial engineering chemical equipment design research institute P.C |
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| Affiliation: | He Xiaohua,Yin Xia,etc.Nanjing university of chemial engineering chemical equipment design and research institute,P.C 210009 |
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| Abstract: | On an imported heat exchanger in some chemical plant,an offset caused by fabricating deviation is presented on the joint between shell and straight part of head.By means of finit element method.The stress analysis is carried out.And the strength of offset part is evaluated.The repair welded equipment is also analyzed by finit element method.The result of analysis denotes that the stress status of repair welded parts is distinctly improved.So that,the safety and reliability of equipment are incrased. |
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| Keywords: | Heat exchanger Finite element method Stress analysis Safe evaluation |
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