基于超声检测技术的管道气腔测量方法探讨

Disscussion on Measurement Technology of Pipeline Bubble Volume Based on Ultrasonic Testing Technology

管道内气腔液位的存在,对核电系统EAS/RIS水压试验及射线检验有严重影响。本文结合超声检测技术,对管道内液位测量原理、液位计算方法以及管道气腔测量及体积计算方法进行介绍。根据钢-水及水-钢界面回波位置对管道内液位存在高度进行判断,通过数学计算,推导出气腔体积。

The presence of bubble volume in the pipeline has a serious impact on nuclear power system EAS/RIS hydraulic pressure test and radiographic inspection. Combined with ultrasonic testing technology, this paper introduces the principle of measuring the liquid level in the pipeline, the calculation method of the liquid level and the method of measuring the pipeline bubble volume and volume calculation of the pipeline. According to the echo position of the steel-water and water-steel interface, the height of the liquid level in the pipeline is judged, and the bubble volume is deduced by mathematical calculation.