德士古水煤浆气化工艺烧嘴外氧喷头端盖失效原因分析
Failure analysis of Texaco coal water slurry gasification feed injector outer tip cap
杨勃 1张东东2
作者信息
- 1. 中国中煤能源集团有限公司,北京 100120
- 2. 中煤陕西能源化工集团有限公司,陕西榆林 719000
- 折叠
摘要
工艺烧嘴是德士古水煤浆气化装置的关键部件,其运行周期直接决定了气化炉的长周期安全稳定运行.从宏观检查、微观金相分析、硬度检测、能谱分析等多角度对气化炉烧嘴外氧喷头端盖因Cl、S腐蚀导致失效的原因进行了分析,研究出材料组成元素及优化夹套结构设计等针对性措施,以延长工艺烧嘴使用寿命.
Abstract
Feed injector is the key equipment of Texaco coal water slurry gasification process,and its operation status directly determines the operation cycle,safety and stability of a gasifier.Based on macroscopic inspection,microscopic metallographic analysis,hardness detection and energy spectrum analysis,the failure mechanism of a feed injector outer tip cap is analyzed,which caused by Cl and S corrosion.The service life of the feed injector is prolonged by studying the material composition elements and optimizing the design of jacket cooling structure.
关键词
水煤浆/德士古气化炉/工艺烧嘴/外氧头端盖/Cl腐蚀/S腐蚀Key words
coal-water slurry/Texaco gasifier/feed injector/outer tip cap/Cl corrosion/S corrosion引用本文复制引用
出版年
2024
NETL
NSTL
万方数据