摘要
针对硫磺回收装置中蒸汽过热器与尾气加热器间的膨胀节因自身结构引起腐蚀出现烟气泄漏的情况,通过分析提出采用锥形连接段代替原膨胀节,可消除烟气串入产生露点腐蚀。新锥形连接结构具有改善烟气流型,降低设备造价的优点。
Leakages appeared at the expansion joints between the vapour superheaters and the tail-gas heaters in many sulfur recovery units.According to the study in this paper,it is the construction of the expansion joints which caused the dew point corrosions at the joints.A new tapered connecting is proposed and the expansion joint will be cancelled.The new connecting can improve the flow pattern of the tail-gas and reduce the cost of equipment purchase.
出处
《石油化工设备》
CAS
2015年第2期52-55,共4页
Petro-Chemical Equipment
关键词
硫磺回收装置
蒸汽过热器
加热器
膨胀节
露点腐蚀
泄漏
锥形连接段
sulfur recovery unit
vapour superheater
heater
expansion joint
dew point corrosion
leakage
tapered connecting
