| 重油催化再生器应力腐蚀裂纹分布规律分析 |
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| 引用本文： | 程连谱,傅向民,韩立清,汪洋,罗杰英,罗俊英,郭健.重油催化再生器应力腐蚀裂纹分布规律分析[J].石油化工设备技术,2009,30(6). |
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| 作者姓名： | 程连谱 傅向民 韩立清 汪洋 罗杰英 罗俊英 郭健 |
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| 作者单位： | 中国石油天然气股份有限公司大庆石化分公司,黑龙江,大庆,163714 |
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| 摘 要： | 文章针对重油催化裂化装置再生器露点应力腐蚀裂纹问题,归纳了裂纹分布规律(裂纹主要分布在环焊缝上;一种为纵裂纹,数量少,长度长;一种为横裂纹,数量多,长度短),并简要分析了焊接残余拉应力对裂纹分布规律的影响。
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| 关 键 词： | 催化裂化装置 工艺设备 应力腐蚀 焊接残余应力 裂纹分布 |
ANALYSIS ON THE REGULATION OF STRESS CRACK DISTRIBUTION OF RFCC REGENERATOR |
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| Cheng Lianpu,Fu Xiangmin,Han Liqing,Wang Yang,Luo Jieying,Luo Junying,Guo Jian.ANALYSIS ON THE REGULATION OF STRESS CRACK DISTRIBUTION OF RFCC REGENERATOR[J].Petro-Chemical Equipment Technology,2009,30(6). |
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| Authors: | Cheng Lianpu Fu Xiangmin Han Liqing Wang Yang Luo Jieying Luo Junying Guo Jian |
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| Affiliation: | Cheng Lianpu; Fu Xiangmin; Han Liqing; Wang Yang; Luo Jieying; Guo Jian Daqing Subsidiary Company; CNPC; P.C. 163714.; |
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| Abstract: | This article presents the regulation of stress crack distribution(the cracks mainly distribute on round weld joints,one crack is a vertical crack which has less quantity but long crack; one is horizontal crack which has more quantity and short crack.) against the dew point stress corrosion crack problems of the national residue catalytic cracking regenerator;and analyzes the influence of remaining tensile stress on the regulation of crack distribution. |
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| Keywords: | Stress corrosion Remaining welded stress Elastic stress Film stress Stress field intensity factor Stress concentration Corrosion pit |
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