原子光谱法测量火焰温度  

Flame Temperature Measurement Based on Atomic Spectroscopy

作　　者：林涛[1] 邓宇佳[2] 李凯 蒋小明[2] 侯贤灯[1,2] LIN Tao;DENG Yu-jia;LI Kai;JIANG Xiao-ming;HOU Xian-deng(College of Chemistry,Sichuan University,Chengdu 610064,China;Analytical & Testing Center,Sichuan University,Chengdu 610064,China)

机构地区：[1]四川大学化学学院,四川成都610064 [2]四川大学分析测试中心,四川成都610064

出　　处：《分析测试学报》2021年第6期785-789,共5页Journal of Instrumental Analysis

基　　金：国家自然科学基金资助项目(21427810)。

摘　　要：火焰温度的准确测量一直是重要的研究课题,对于构建燃烧模型、探究原子化机理、燃烧反应机理和减少燃烧过程中污染物的排放等具有重要意义。非接触式测温法因对火焰燃烧状态几乎无干扰受到特别关注,是火焰温度测量的重要技术手段,其中原子光谱法由于其固有的非接触式特性及谱线简单、光谱信号强、操作简便等优点,在高温诊断领域中得到了广泛的关注和应用。原子光谱法测温是根据处于不同能级的原子光谱信号结合热力学平衡状态下的玻尔兹曼能级分布来进行火焰温度的测量。按照采集的原子光谱信号的来源,原子光谱法可分为原子吸收光谱法、原子发射光谱法和原子荧光光谱法3类。该文简述了原子光谱相关测温方法的原理、发展及应用,包括原子吸收光谱双线法、原子发射光谱双线法、多谱线斜率法(玻尔兹曼图解法)与原子荧光光谱双线法等。Accurate measurement of flame temperature is always an important research topic,which is significant for the establishment of combustion models,exploration of atomization mechanisms,combustion reaction mechanisms and reduction of pollutants emissions during combustion processes,etc.Non-contact flame temperature measurement method is a preferred important flame diagnostic technique on account of scarcely any disturb on combustion regime,and atomic spectroscopy-based techniques have drawn wide attention and been widely applied in the field of high temperature diagnosis because of their inherent non-contact characteristics.Atomic spectroscopy methods play an important role in non-contact methods because of the features of single spectrum,strong spectral signal and user-friendly operation.The main principle of atomic spectroscopy methods is that atoms occupy on different energy levels which obey Boltzmann distribution under thermodynamic equilibrium and thus flame temperature could be obtained from corresponding atomic spectrum signals’ratio.According to the distinctions of utilized spectra,atomic spectroscopy methods could be divided into three categories,i.e.,atomic absorption spectroscopy method,atomic emission spectroscopy method,and atomic fluorescence spectroscopy method.The correlative principles,development and application of the atomic spectroscopy methods,including two-line atomic absorption spectroscopy method,two-line atomic emission spectroscopy method,Boltzmann plot method and two-line atomic fluorescence spectroscopy method are simply summarized in this review.

关 键 词：火焰温度测量 非接触式 原子吸收光谱 原子发射光谱 原子荧光光谱 综述 

分 类 号：O657.31[理学—分析化学]