典型可燃物燃烧烟尘物化特性差异性研究

发布时间：2018-10-13 16:55

【摘要】：开展对典型可燃物燃烧烟尘的物化特性差异性研究,是全面了解烟尘信息的基础。基于可控条件下的燃烧试验,对典型可燃物燃烧烟尘物理特性和化学组分进行了分析。通过对比分析汽油燃烧烟尘、聚苯乙烯燃烧烟尘、ABS燃烧烟尘及柴油烟尘和正庚烷烟尘的透射电镜图片,对透射电镜图的紧凑性、复杂性及灰度值进行了深入分析,探讨了燃烧烟尘的物理差异性。利用固相微萃取-气质联用技术(SPME-GC-MS),对汽油燃烧烟尘、聚苯乙烯燃烧烟尘、ABS燃烧烟尘化学组分进行了分析和对比。通过燃烧烟尘的特征物质组分的分析,得到3种燃烧烟尘在特征物质的分布和出峰时间等方面的差异性。这些差异性可作为对烟尘来源及燃烧条件等因素判别的依据。
[Abstract]:The research on the difference of physicochemical characteristics of typical combustible combustion dust is the basis of comprehensive understanding of smoke and dust information. Based on the combustion test under controllable conditions, the physical characteristics and chemical components of typical combustible combustion dust were analyzed. The compactness, complexity and gray value of the transmission electron microscope (TEM) images of gasoline smoke, polystyrene smoke, ABS smoke, diesel smoke and n-heptane smoke were compared and analyzed. The physical differences of burning smoke and dust were discussed. The chemical components of gasoline, polystyrene and ABS combustion dust were analyzed and compared by solid phase microextraction (SPME-GC-MS). Through the analysis of the composition of the characteristic substances of the burning dust, the differences of the distribution of the characteristic substances and the peak time of the three kinds of burning soot dust were obtained. These differences can be used as the basis for the identification of smoke and dust sources and combustion conditions.
【作者单位】：中国科学技术大学火灾科学国家重点实验室;中国科学技术大学苏州研究院苏州市城市公共安全重点实验室;南京锅炉压力容器检验研究院;
【基金】：国家十二五科技支撑计划项目(2012BAK03B02) 江苏省科技支撑计划项目(BE2012671) 安徽省科技计划项目(1201b0403014) 中央高校基本科研业务费专项(WK2320000034)
【分类号】：X932

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