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在石化生产过程中,危害气体泄漏时有发生,为了快速准确地确定泄漏气体种类,以便及时给事故应急提供指导,提出了基于傅里叶光学红外成像的分析方法,通过远距离遥测识别泄漏气体种类。实验研究了光谱分辨率、气体排放流量对遥测识别的影响,并且在某公司乙烯装置开展了现场泄漏检测与识别应用。识别实验和现场应用结果表明,傅里叶光学红外成像分析方法可以快速定位泄漏气体位置,并且识别气体种类,正确检测并识别目标气体后,进一步减小光谱分辨率和泄漏目标气体流量对气体识别的影响较小,该方法有利于石化生产安全隐患排查与事故应急处置。
In the process of petrochemical production, hazardous gas leaks occur from time to time. In order to quickly and accurately determine the types of gas leaks, in order to provide timely guidance for accident emergency, an analysis method based on Fourier optical infrared imaging is proposed to identify the leakage gas by remote telemetry species. The effects of spectral resolution and gas discharge on telemetry identification were studied experimentally, and on-site leak detection and identification were carried out in a company ethylene plant. The results of identification experiment and field application show that Fourier optical infrared imaging can quickly locate the gas leak and identify the type of gas. After correctly detecting and identifying the target gas, the spectral resolution and target gas flow rate are further reduced. The method is beneficial to the investigation of potential safety hazards in petrochemical production and accident emergency treatment.