摘要
对某石化公司合成氨装置重要换热器合成回路蒸汽发生器在工厂内出现管头裂纹情况进行系统性分析和检测。结果表明,保护管与换热管点焊部位不同程度的未熔合焊接缺陷以及保护管结构原因是导致焊接裂纹的主因,并针对裂纹成因提出对应的防止措施。
This paper systematically analyzed and test the cracks of tubesheets-tube of the synthesis loop steam generator in a shopwork. The results show that the incomplete fusion of protection tube to tube and the structure defects of protection tube are the main cause of welding cracks,and put forward the corresponding prevention measures.
出处
《压力容器》
2017年第8期70-74,65,共6页
Pressure Vessel Technology
关键词
换热管
未熔合
裂纹
heat exchange tube
incomplete fusion
crack
