重催装置YL型烟机轮盘榫齿裂纹的技术分析  

TECHNICAL ANALYSIS OF TOOTH CRACKS IN DISK OF YL TYPE EXPANDER AT RFCC UNIT

作　　者：钟伟明[1] 

机构地区：[1]中国石油化工股份有限公司广州分公司机械动力部

出　　处：《广石化科技》2007年第1期31-36,共6页

摘　　要：重油催化裂化装置烟机转子由于叶片冲刷进行修复，在修复前的检查中发现轮盘榫齿有多处裂纹和冲刷沟槽，通过对轮盘材质、外观、断口及显微组织的技术分析，发现这些裂纹是原材料制造中遗留的原始缺陷造成的，并不是在轮盘使用过程中产生的。通过激光熔敷的方法进行修复，避免了该转子的过早报废。Several cracks and erosion grooves in joggle teeth of disk of the expander at RFCC unit were found. The technical analyses over the material, over the appearance, over the fracture and over the microstructure of disk were carried out. It is found that these cracks were not generated during operation of disk instead they had long been existing in the material provided by manufacturer. Now, rehabilitation by laser deposition is possible to avoid its out of service too early.

关 键 词：重油催化裂化装置 烟气膨胀机 轮盘 裂纹 激光熔敷 

分 类 号：TE965[石油与天然气工程—石油机械设备]