第45卷，增刊1 2016年8月
石油化工设备
PETRO-CHEMICAL EQUIPMENT
文章编号：1000-7466(2016)增刊1-0053-07
D
Vol.45
Supplement1
Aug.2016
煤制氢装置变换管道开裂失效分析和改进措施
胡庆斌
（中国神华煤制油化工有限公司鄂尔多斯煤制油分公司，内蒙古鄂尔多斯017209）
摘要：某煤制氢装置变换系统一条管道在使用过程中发生开裂失效，通过对失效部分取样、检测和试验，包括宏观检查、硬度测定、金相分析、扫描电镜观察和能谱分析等，对失效原因进行了详细分析。结果表明，该管道共发生的两处开裂，一处是热冲击引起的开裂，另一处是热疲劳引起的开裂。
为防止失效再次发生，设计了一种导流结构，并在实际使用中进行了验证。关键词：管道；煤制氢装置；开裂；失效；改进措施
中图分类号：TQ055.8；TE973
文献标志码：Bdoi：10.3969/i.issn.1000-7466.2016.S1.013
Cracking Analysis and Prevention Measures for Converting Pipeline of
Hydrogen Generation Plant from Coal in Service
HU Qing-bin
(China Shenhua Coal to Liquid and Chemical Co . Ltd., Ordos Coal Liquefaction
Company, Ordos 017209, China)
Abstract: Cracking was found on the tee of an in-service converting pipeline used in a hydrogen generation plant from coal. By way of failure analysis , including macroscopic inspection , hard-ness testing, metallographic examination , SEM observation and energy spectrum analysis , the research was made for the cracking mechanism . The results show that there are two concerned damage modes . One is thermal shock , and the other is thermal fatigue . In order to prevent failure in future, a diversion structure is designed and effectiveness of this structure is satisfying -
Key words: pipeline; hydrogen generation plant from coal; cracking; failure; prevention
measures
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（许编）
作者简介：胡庆斌(1969-），男，辽宁辽阳人，高级工程师，学士，长期从事石油化工和煤化工企业设备管理工作。