国产热媒炉低温腐蚀的研究  

Study on the Low Temperature Corrosion of Home made Heat Medium Heater

作　　者：吴红刚[1] 

机构地区：[1]中国石化管道储运公司潍坊输油处

出　　处：《油气储运》2002年第4期40-41,共2页Oil & Gas Storage and Transportation

摘　　要：阐述了国产热媒炉低温腐蚀对输油管道运行造成的危害。通过对国产热媒炉低温腐蚀机理的研究,提出了金属管壁的温度是造成酸露点腐蚀的主要因素,而酸露点又严重地制约着排烟温度的降低。因此,可采用抗低温腐蚀材料缓解腐蚀,并提高空气入口温度、降低水蒸气、改变对流换热系数和采用热管空气预热器等措施预防低温腐蚀,从而控制金属管壁的温度,以保证热媒炉的高效运行。Through analyzing the mechanism of low temperature corrosion of home-made heat medium heater and its harm to the in-line oil pipeline, it is pointed out that the temperature of heater tube is important factor to form acid dew point corrosion,which constrains seriously the gas discharge temperature in a low temperature way. Therefore, anti -low temperature corrosion material can be adopted to inhibit the corrosion,and other corrosion control measures include increasing the air inlet temperature decreasing the dew point of water vapour,varying convective heat-transfer coefficient,using hot-tube air preheater.

关 键 词：热媒炉 低温腐蚀 研究 空气/烟气预热器 预防措施 输油设备 

分 类 号：TE988[石油与天然气工程—石油机械设备]