城市燃气管道内检测技术

Internal Detection Technologies of City Gas Pipeline

分析了管道内检测的必要性,介绍了基于无损检测理论的漏磁检测、超声波检测、射线检测、涡流检测以及红外热成像检测等管道内检测技术,探讨了漏磁检测技术在城市燃气管道中的应用,提出了加强管道完整性管理的建议。

The necessity for pipeline internal detection is analyzed. The pipeline internal detection technologies based on nondestructive detection theory including leakage flux detection, ultrasonic detection, radiography detection, eddy current detection and infrared thermal imaging detection are intro- duced. The application of leakage flux detection in city gas pipeline is discussed. Suggestions on strengthening pipeline integrity management are presented.