PTA氧化反应器泄漏失效分析

摘要

分析氧化反应器泄漏失效的原因，发现由于制造时焊缝内部存在的未焊透、夹渣等缺陷，加上长期含固体颗粒的物料冲刷，造成角焊缝严重减薄，在开车升温升压时，承受载荷时撕裂；提出有效预防措施，避免类似事故的发生。%Failure Analysis of Leaking for the Oxidation Reac⁃tor, it is found that due to the manufacturing of internal defects such as lack of fusion, slag inclusion, combined with long-term material erosion containing solid particles, causing serious thinning fillet weld, when driving heat booster, tear when load; Put forward effec⁃ tive prevention measures, to prevent similar accidents.