理化检验-物理分册2025，Vol.61Issue(5)：62-65,82,5.DOI:10.11973/lhjy-wl240065
天然气净化装置换热器泄漏原因
Leakage reason of heat exchanger in natural gas purification device
马星远 1赵佳琪 2尚用兰 1张进龙 1张建光 1卢雪梅 3陈梦婷3
作者信息
- 1. 中国石油长庆油田分公司第一采气厂,西安 750001
- 2. 中国石油长庆油田分公司第四采气厂,西安 710018
- 3. 机械工业上海蓝亚石化设备检测所有限公司,上海 201613
- 折叠
摘要
Abstract
A perforation leakage accident of heat exchange tube occurred in the heat exchanger of a company's natural gas purification device during service.The causes of heat exchange tube leakage were analyzed by means of macroscopic observation,chemical composition analysis,metallographic examination,scanning electron microscopy and energy spectrum analysis.The results show that the main reason for the leakage of the heat exchange tube was that the solid particles in the shell side medium were attached to the outer surface of the heat exchange tube due to the slow flow rate of the medium.With the continuous thickening of the scale layer,the water gas containing H2S,CO2 and other acidic substances penetrated into the scale layer,forming a closed cell corrosion environment,and the pH of the local area decreased,which caused the corrosion thinning of the wall thickness of the heat exchange tube from the outer surface to the inner surface,and finally led to the perforation and leakage of the heat exchange tube.关键词
天然气净化装置/换热器/穿孔/泄漏/闭塞电池腐蚀/壁厚减薄Key words
natural gas purification device/heat exchanger/perforation/leakage/block battery corrosion/wall thickness thinning分类
通用工业技术引用本文复制引用
马星远,赵佳琪,尚用兰,张进龙,张建光,卢雪梅,陈梦婷..天然气净化装置换热器泄漏原因[J].理化检验-物理分册,2025,61(5):62-65,82,5.
