量子电子学报 ›› 2018, Vol. 35 ›› Issue (4): 486-492.

• 激光应用 • 上一篇    下一篇

轧钢炉中高温CO气体红外被动遥测模拟与分析

高乾坤 刘文清 张玉钧 高闽光 李相贤   

  1. 1中国科学院安徽光机所环境光学技术重点实验室,安徽 合肥 230031; 2 中国科学技术大学, 安徽 合肥 230026
  • 收稿日期:2016-09-20 修回日期:2018-04-28 出版日期:2018-07-28 发布日期:2018-07-12
  • 通讯作者: 张玉钧(1964-),博士,研究员,安徽人,主要从事红外光谱监测技术方面的研究。 E-mail:yjzhang@aiofm.ac.cn
  • 作者简介:高乾坤 (1985-), 安徽人,博士生,主要从事FTIR被动遥测方面的研究。Email:94362018@qq.com
  • 基金资助:

    Supported by National Key Scientific Instrument and Equipment Development Projects(国家重大仪器开发专项,2012YQ22011902),863 National High Technology Research and Development Program of China(国家863计划,2014AA06A503),Science and technology major projects of Anhui province (安徽省科技重大专项,15czz04124)

Simulation and analysis of infrared passive remote detection of high temperature CO gas in rolling furnace of steel

GAO Qiankun, LIU Wenqing, ZHANG Yujun, GAO Minguang,LI Xiangxian   

  1. 1 Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; 2 University of Science and Technology of China, Hefei 230026, China
  • Received:2016-09-20 Revised:2018-04-28 Published:2018-07-28 Online:2018-07-12

摘要:

被动傅里叶变换红外(FTIR)光谱技术具有远程操作、在线分析和不需要红外光源等优点。基于此技术分析了被动遥测轧钢加热炉内燃烧过程中高温一氧化碳(CO)气体浓度计算的相关理论与方法。针对加热炉辐射光谱测量包含两层均质红外辐射传输介质的情况,提出了采用炉膛外壁控温改变遥测背景红外辐射,从而获得炉内CO特征光谱的方法。基于轧钢过程中的燃烧工况进行了CO浓度模拟计算与分析,讨论了CO温度测量误差对测量浓度反演精度的影响,为该技术的实际应用提供了参考数据及技术方案。

关键词: 被动遥测, 傅里叶变换红外光谱, 一氧化碳, 高温

Abstract:

Passive Fourier transform infrared (FTIR) technology has the advantages of remote operation, on-line analysis and no need for infrared light source etc. Based on the technology, the theory and method of calculating the concentration of carbon monoxide (CO) gas at high temperature during combustion in rolling furnace of steel are analyzed. Aiming at the situation that the radiation spectral measurement of heating furnace consists of two-layers homogeneous Infrared radiation transfer medium, a method of changing the infrared radiation of remote sensing background by temperature control on the outside wall of furnace is proposed to obtain the characteristic spectrum of CO in furnace. Based on the combustion condition in rolling process, CO concentration simulation and analysis are carried out, and the effects of CO temperature measurement error on accuracy of measurement concentration inversion are discussed. The reference data and technical scheme are provided for the practical application of this technology.

Key words: remote detection, Fourier transform infrared, carbon monoxide, high temperature