一段转化炉对流段混合盘管故障分析与修复措施

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英文篇名：TECHNICAL ANALYSIS AND REPAIR MEASUREMENTS OF MIXING COIL FOR FEED-GAS AND STEAM IN CONVECTION SECTION OF PRIMARY REFORMER 作者：卢荔民 英文作者：Lu Limin;China BlueChemical Ltd.; 关键词：转化炉 ; 对流段 ; 混合盘管 ; 爆管 ; 焊缝 英文关键词：reformer;;convection section;;mixed coil;;tube bursting;;welding seam 中文刊名：大氮肥 英文刊名：Large Scale Nitrogenous Fertilizer Industry 机构：中海石油化学股份有限公司; 出版日期：2019-02-25 出版单位：大氮肥 年：2019 期：01 语种：中文; 页：19-22 页数：4 CN：33-1369/TQ ISSN：1002-5782 分类号：TQ113.254

摘要

介绍合成氨转化炉对流段工艺特点,针对对流段原料气蒸汽混合盘管故障,从管壁温度、盘管材质、管材应力等方面分析爆管原因,最终确定盘管焊接接头的局部应力开裂为爆管故障的主要原因,提出并实施了对流段混合盘管截管更换的修复方案,取得了良好的效果。
        The process characteristics of ammonia convection section were introduced. The causes of bursting and over temperature were analyzed based on factors such as wall temperature, coil material quality and tube stress analysis. The results showed that the local stress cracking of the welded joint was an important source of bursting failure. Finally, a repair plan for mixing coil in convection section was proposed.

引文

[1]郝莉莉,张蓓.合成氨装置综合能耗与产品产量关联性分析的案例实践[J].安徽化工,2018,44(1):98-100.
    [2]曾晓波,符鹏飞,李强.一段炉混合原料气盘管更换小结[J].大氮肥,2012,35(6):380-383.
    [3]姚烨.一段转化炉炉管爆裂原因分析及防止措施[J].天然气化工(C1化学与化工),2014,39(3):69-72.