| 丙烷扩散火焰燃烧光谱特性研究* |
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| 引用本文： | 胡亮子,马国鹭,赵涌,宋子军,刘囿辰.丙烷扩散火焰燃烧光谱特性研究*[J].中国安全生产科学技术,2022,18(5):85-89. |
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| 作者姓名： | 胡亮子 马国鹭 赵涌 宋子军 刘囿辰 |
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| 作者单位： | （1.西南科技大学 制造过程测试技术教育部重点实验室，四川 绵阳 621010；2.中国航发四川燃气涡轮研究院，四川 绵阳 621000；3.航空发动机高空模拟技术重点实验室，四川 绵阳 621000） |
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| 基金项目： | * 基金项目: 国家自然科学基金项目（61505169） |
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| 摘 要： | 为实现烃类火灾事故的光谱辨识，对丙烷火焰燃烧初期过程中的光谱特性进行实验研究，利用拉曼光谱仪等设备采集、提取丙烷扩散火焰光谱数据。分析燃烧初期OH*,C2*,CH*,H2O分子谱带范围及特征峰值分布特性，揭示谱带光谱特征强弱的主要原因，阐述沿火焰轴向与径向C2*,CH*以及H2O分子光谱峰值强度的分布特性。研究结果表明:丙烷火焰特征光谱主要分布在可见光与近红外波段，250~380 nm的近紫外波段光谱强度较弱。C2*的509.4，512.8，810.5 nm特征谱带，CH*的431.4 nm谱带以及H2O分子的586.2，652.2 nm处振动-转动谱带可作为丙烷火焰燃烧的关键特征光谱，为烃类火灾的早期识别与防控提供光谱实验依据。
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| 关 键 词： | 丙烷燃烧 扩散火焰 燃烧光谱 自由基 特征谱带 |
Study on combustion spectrum characteristics of propane diffusion flame |
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| HU Liangzi,MA Guolu,ZHAO Yong,SONG Zijun,LIU Youchen.Study on combustion spectrum characteristics of propane diffusion flame[J].Journal of Safety Science and Technology,2022,18(5):85-89. |
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| Authors: | HU Liangzi MA Guolu ZHAO Yong SONG Zijun LIU Youchen |
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| Affiliation: | (1.Key Laboratory of Testing Technology for Manufacturing Process of Ministry of Education,Southwest University of Science and Technology,Mianyang Sichuan 621010,China;2.AECC Sichuan Gas Turbine Establishment,Mianyang Sichuan 621000,China;3.Key |
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| Abstract: | In order to realize the spectral identification of hydrocarbon fire accidents,the spectral characteristics of propane flame in the initial stage of combustion were experimentally studied,and the spectral data of propane diffusion flame were collected and extracted by Raman spectrometer.The spectral band range and characteristic peak distribution characteristics of OH*,C2*,CH* and H2O in the initial stage of combustion were analyzed,then the main reasons for the strength of spectral band spectral characteristics were revealed,and the distribution characteristics of the peak intensity of C2*,CH* and H2O along the axial and radial direction of the flame were described.The results showed that the characteristic spectrum of propane flame was mainly distributed in the visible and near infrared bands,and the intensity of near ultraviolet band at 250~380 nm was relatively weak.The characteristic band of C2* at 509.4 nm,512.8 nm and 810.5 nm,the band of CH* at 431.4 nm and the vibration-rotation band of H2O molecule at 586.2 nm and 652.2 nm could be used as the key characteristic spectrum of propane flame combustion,which provides spectral experimental basis for the early identification,prevention and control of hydrocarbon fire. |
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| Keywords: | propane combustion diffusion flame combustion spectrum free radical characteristic band |
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