摘要
介绍了受热面管内壁氧化膜超声波检测技术的基本原理和仪器设备,该技术可对受热面管内壁氧化膜厚度进行快速、准确测量,适用于批量检测。在此基础上,进一步对该项技术在管壁金属层厚度测量、内壁氧化膜动态监测、当量温度计算以及炉管寿命预测方面的具体应用进行了较为详细地阐述和分析。通过检测内壁氧化膜厚度,对高温受热面管的安全状况进行评价、预测其剩余寿命,对于电站锅炉的安全经济运行、指导检验检修方面具有重要作用,在火力发电行业具有良好的应用前景。
The basic principle and equipment performance of heating surface tube inner wall oxide layer ultrasonic detection technology is introduced. This technique can be used as a rapid and accurate measurement of inner wall oxide layer thickness, which is suitable for batch testing. In addition, the specific application of this technology in furnace tube metal layer thickness measurement, the inner wall oxide layer dynamic monitoring, equivalent temperature calculation and furnace tube life prediction is discussed and analyzed in detail. This technology can provide support for furnace tube security assessment and life prediction that could play an important role in guaranteeing the safe and economical operation of power plant boiler and inspection guidance, and has good application prospect ill thermal power industry.
出处
《中国特种设备安全》
2015年第1期28-33,共6页
China Special Equipment Safety
关键词
锅炉
受热面管
内壁氧化膜
寿命预测
Boiler Heating surface tube Inner wall oxide layer Life prediction
