介绍了在高噪声背景下，对某台气化炉改造部位进行声发射检测分析的情况，并采用常规无损检测方法对声发射检测结果进行了复验。结果表明，声发射检测技术与常规无损检测方法发现的缺陷有良好的对应关系，证明声发射检测技术在高噪声背景下的可行性和有效性，为类似大型石化设备声发射检测提供了参考。

This article describes the acoustic emission (AE) detection technology in high background noise environments. The AE technique was used for on-line detection and analysis of the reformed parts of a gasifier and the acoustic emission test results were re-inspected by conventional NDT methods. The results showed that acoustic emission testing technology could have good correspondence with conventional NDT methods in detecting the defects, which proved the feasibility and effectiveness of acoustic emission in high background noise. The results could provide reference for AE test of similar large-scale petrochemical equipment.