油气水分离器声发射检测的初步实践

本文简单介绍了声发射的工作原理和技术特征。结合声发射技术特点,针对油气水分离器的结构特征,提出了用声发射检测的平面定位方案。讲述了检测前的准备工作;通过采用两次加载,对比两次实验中的采集数据,结合凯塞尔效应的原理,综合分析了检测中的噪声来源,指出从保压阶段的采集数据中提取有效信号,并根据有效信号判断缺陷的性质。最后给出检测结果和提出目前在油气水分离器检测中急需解决的问题和工作方向。

The paper briefly introduces the working principle and technical features of acoustic emission. A scheme of planar location of AE test is proposed to the structural characteristics of an oil and gas separators. It de- scribes the preparation work before a test. Using two loading, contrasting the data collected in the two tests, com- bining the principle of Kaiser effect, and comprehensively analyzing noise sources in the tests, it points out that the effective signals should be pickcd up from the data acquired at the pressure holding stage, and the nature of defect should be determined on the basis of them. Finally, it gives the results of test and puts forward the problems which urgently need to be solved in present and the direction of work.