| 乙烯裂解炉管中时变应力场和蠕变损伤分数数值模拟 |
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| 引用本文： | 祝美丽,尹友,汪涛,刘书田,张俊善. 乙烯裂解炉管中时变应力场和蠕变损伤分数数值模拟[J]. 大连理工大学学报, 2001, 41(2): 192-196 |
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| 作者姓名： | 祝美丽 尹友 汪涛 刘书田 张俊善 |
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| 作者单位： | 1. 大连理工大学材料工程系, 辽宁大连 116024
2. 大连理工大学工程力学系, 辽宁大连 116024 |
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| 基金项目： | 国家自然科学基金!资助项目 ( 5 0 0 710 16) |
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| 摘 要： | 通过对乙烯裂解炉管典型工况分析，建立了炉管在温度、内压、渗碳和蠕变等交互作用下的有限元计算模型，并对HK40奥氏体耐热钢制成的乙烯裂解炉管在1173K下的应力场和蠕变损伤分数进行了模拟；结果表明渗碳是引起炉管失效的主要原因。通过计算得到的炉管失效方式、位置和炉管寿命均与实际运行结果基本吻合。
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| 关 键 词： | 应力场 乙烯裂解炉管 蠕变损伤分数 炉管寿命 乙烯生产 石油化工工业 奥氏体钢 数值模拟 |
| 文章编号： | 1000-8608(2001)02-0192-05 |
Numerical simulation on stress and creep damage fraction in ethylene cracking tube |
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| ZHU Mei li,YIN You,WANG Tao,LIU Shu tian,ZHANG Jun shan. Numerical simulation on stress and creep damage fraction in ethylene cracking tube[J]. Journal of Dalian University of Technology, 2001, 41(2): 192-196 |
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| Authors: | ZHU Mei li YIN You WANG Tao LIU Shu tian ZHANG Jun shan |
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| Affiliation: | ZHU Mei li1,YIN You1,WANG Tao1,LIU Shu tian2,ZHANG Jun shan1 |
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| Abstract: | After analyzing typical operation conditions of ethylene cracking tubes, a finite element calculation model under interactions of temperature, internal pressure, carburization and creep is founded. Stress distribution and creep damage distribution are simulated for cracking tubes made from HK40 steel at 1 173 K. The calculated results show that carburization is the main cause of the failure of tubes. As for the way and location of the failure of tubes and the life of tubes, the calculated results are in good agreement with the actual results. |
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| Keywords: | finite element method stress field lifetime/ethylene cracking tubes |
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