Progress in infrared imaging detection technology and domestic equipment for industrial gas leakage in chemical industry parks

doi:10.11949/0438-1157.20230835

Abstract

Abstract:

The prevention and early warning of industrial gas leakage in chemical parks is an important part of the current production process, which is not only a matter of life and property safety, but also a project of vital and lasting importance for dual-carbon compliance and environmental protection. On the basis of introducing the basic principles and typical products of advanced technologies such as conventional single-point detection, laser detection and infrared imaging detection of industrial gas leakage, this paper analyzes the infrared imaging detection technology of gas cloud suitable for on-site leakage and its characteristics of localized equipment, and analyzes the key technologies that need to be solved to further realize engineering application after breakthroughs in laboratory theory and key technologies, which is of significance for promoting the development of gas leakage prevention technology and equipment promotion in domestic chemical parks.

Key words: industrial gas leakage, infrared imaging detection, laser detection, spectral detection, field application

摘要：

化工园区工业气体泄漏防范预警是当前生产过程的重要环节，关系到安全、双碳达标、环境保护问题。本文在介绍工业气体泄漏常规单点检测、激光检测、红外成像检测等先进技术的基本原理和典型产品的基础上，分析了适合现场泄漏气云红外成像检测技术及其国产化装备特点，对实验室理论和关键技术突破后进一步实现工程化应用需要解决的关键技术进行了分析，对促进国内化工园区气体泄漏防范技术发展和装备推广具有意义。

关键词: 工业气体泄漏, 红外成像检测, 激光检测, 光谱检测, 外场应用

CLC Number:

TN 247

Weiqi JIN, Yuerong WU, Xia WANG, Li LI, Su QIU, Pan YUAN, Minghe WANG. Progress in infrared imaging detection technology and domestic equipment for industrial gas leakage in chemical industry parks[J]. CIESC Journal, 2023, 74(S1): 32-44.

金伟其, 吴月荣, 王霞, 李力, 裘溯, 袁盼, 王铭赫. 化工园区工业气体泄漏气云红外成像检测技术与国产化装备进展[J]. 化工学报, 2023, 74(S1): 32-44.

Figures/Tables 21

Fig.1 Several gas single point detectors[7]

Fig.2 Realization mode of laser detection technology for leakage gas[8]

Fig.3 Two kinds of methane gas leakage laser detector products[7]

Fig.4 Principle of infrared imaging detection for dangerous gas leakage[9]

Fig.5 Molecular absorption lines of typical industrial gases (101325 Pa, 296 K) [12]

Fig.6 Common photodetectors and their spectral responses[13]

Table 1 The main thermal imaging detector of the Gas FindIR™ series

型号	工作波段/µm	制冷	探测器	典型可探测气体
GF304	8.0~8.6	制冷	QWIP	制冷剂
GF306	10.3~10.7	制冷	QWIP	六氟化硫等
GF300	3.2~3.4	制冷	InSb	甲烷等
GF320	3.2~3.4	制冷	InSb	甲烷等
GF346	4.52~4.76	制冷	InSb	一氧化碳等
G300a	3.2~3.4	制冷	InSb	甲烷等
G300pt	3.2~3.4	制冷	InSb	甲烷等
A6604	3.2~3.4	制冷	InSb	甲烷等

Fig.7 IRnova320ER-330 component and MW filter transmittance[18]

Fig.8 Refer to filter and active filter application[21]

Fig.9 Broadband gas imaging prototype[23]

Fig.10 Broadband gas imaging prototype and its field imaging[11]

Fig.11 GF77 gas imager and its methane imaging[26]

Fig.12 Infrared imaging detection system for gas leakage based on differential spectral filtering and its imaging [6]

Fig.13 GCI gas cloud imaging detector[28]

Fig.14 Principles of imaging spectral mapping[30-31]

Fig.15 SR-7000 long wave hyperspectral thermal imager[4]

Fig.16 TelopsHyper-Cam Infrared hyperspectral imager[36]

Fig.17 Telops MS-IR Infrared hyperspectral imager[37]

Fig.18 Schematic diagram of infrared spectral imaging system and its principle[38]

Fig.19 Industrial gas leakage cloud infrared imaging detector developed by Wisdom Sharing

Fig.20 Typical application examples of industrial gas leakage gas cloud infrared imaging detector

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