红外热像技术在线评估高温炉管剩余寿命  

INFRARED IMAGE ON-LINE INSPECTION AND REMAINING LIFE PREDICTION FOR ATMOSPHERIC HEATER TUBES

作　　者：李明[1] 林翠[1] 李晓刚[1] 肖佐华[2] 黄梓友[2] 

机构地区：[1]北京科技大学腐蚀与防护中心,北京100083 [2]中国石化集团洛阳石油化工总厂,洛阳471012

出　　处：《机械工程学报》2004年第12期139-144,共6页Journal of Mechanical Engineering

基　　金：国家973资助项目(19990650)。

摘　　要：在红外热像技术检测、剩余寿命预测理论和自行研制的炉管在线剩余寿命评估系统的基础上,通过对常压加热炉管表面温度场的连续红外热像检测,快速、准确地在线测量了炉管工作温度。结合炉管运行史数据,利用拉森-米勒和腐蚀损伤的剩余寿命估算模型,对加热炉炉管的工作状态进行了在线评估和诊断,提供了判断炉管检修与更换的科学依据,具有广泛的工程实用性。The work focuses on the life prediction of atmos-pheric heater tubes. Temperature information of tubes had been acquired by infrared inspection method online measurement with speediness and accuracy, and the temperature values was obtained from these images by using software of infrared image, which was programmed by our research group. On the basis of infrared image technology, remaining life prediction theory and a software system predicting remaining life of heater tubers online, with the temperature and other operation data of heater tubers, the state and remaining life of the tubes is assessed and analyzed by accumulated tube damage method using Larson-miller creep model. The results showed that the temperature of tubes in current operating condition is normal. The research provided scientific data for deciding repair or replacement of tubes. The kind of life prediction technique had wide engineering practicality.

关 键 词：红外热像 高温炉管 在线 剩余寿命预测 

分 类 号：TN219[电子电信—物理电子学] TE973.7[石油与天然气工程—石油机械设备]