超声导波技术在压力管道缺陷检测中应用的局限性

超声导波检测技术是一种新型的长距离、快速检测手段。对影响超声导波检测结果的诸多因素进行了分析。在管线运行的状态下,利用MsS导波技术可以进行长距离管壁腐蚀等缺陷的检测。但该技术无法定量给出缺陷的形状、大小和性质,且具有诸多局限性,因而该技术的应用宜结合其他无损检测方法进行复验确认。

Application Limitation of Ultrasonic Guided Wave Technology in Defects Inspection of Pressure Pipeline

Ultrasonic guided wave testing technique is a new, rapid and long range detection method. The paper analyzes the factors affecting the test results. In the state of pipeline running, MsS guided wave technology can be used for long distance pipe wall defects inspection such as corrosion inspection. However, the technology can not quantify the shape, size and nature of the defects, and has many limitations. Therefore, the application of this technology should be combined with other non-destructive inspection methods for re-inspecting and validation.