S Zorb装置反应器分配盘穿透原因分析与处理

CAUSE ANALYSIS AND TREATMENT OF THE PENETRATION OF REACTOR DISTRIBUTOR DISC IN S-ZORB UNIT

中石化济南分公司SZorb装置大检修期间,发现反应器底部分配盘与盖板交界处冲刷穿透,出现两处孔洞.鉴于现场空间较小,施工困难,检修时间短,材料采购困难等原因,采取了加大盖板的补救方案.文章对检修方案和施工过程做了详细记录和总结,分析了可能造成此次分配盘穿透的原因,并从优化设计和操作管理方面提出了改进建议.

During the overhaul of the S-Zorb Unit of Sinopec Jinan Branch, it is found out that two holes caused by scouring penetration occurred at the juncture between the distributor disc in the lower part of the reactor and the cover plate. Due to the limited on-site space, construction difficulty, short period of overhaul, difficulties in material procurement, the remedy of expanding cover plate is adopted. This paper keeps a detailed record and summarizes the overhaul scheme and construction process.It analyzes the possible reasons for the penetration of the distributor disc and puts forward some measures for improvement from the aspects of optimizing design and operation management.