人造暖云雾凝结核的微物理性能研究

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• 英文论文题名：The Research of Micro-physical Performance of Coagulate Nucleus of Artificial Warm Fog
• 论文作者：代梦艳 ; 陈春生 ; 刘海峰 ; 刘江海 ; 刘香翠
• 英文论文作者：DAI Meng-yan ; Chen Chun-sheng ; LIU Hai-feng ; LIU Jiang-hai ; Liu Xiang-cui ; Research Institute of Chemical Defence
• 年：2016
• 作者机构：防化研究院第五研究所;
• 论文关键词：暖云雾 ; 凝结核 ; 微物理性能 ; 粒径 ; 数密度
• 英文论文关键词：warm fog ; coagulate nucleus ; microphysical performance ; size distribution ; number density
• 会议召开时间：2016-07-01
• 会议录名称：中国化学会第30届学术年会摘要集-第三十四分会：公共安全化学
• 语种：中文
• 分类号：P48
• 学会代码：ZGHY
• 会议名称：中国化学会第30届学术年会-第三十四分会 ; 公共安全化学
• 会议地点：中国辽宁大连
• 主办单位：中国化学会
• 学会名称：中国化学会
• 页数：1
• 文件大小：235k
• 原文格式：D
• 会议级别：全国

摘要

本文采用高速摄影、低压电子冲击仪(ELPI)、电镜(SEM)、X射线衍射(XRD)等多种分析测试手段对凝结核的粒度分布、化学组成和表观形貌等进行研究,利用实验和数值分析相结合的研究方法,全面分析人造暖云雾凝结核的微物理性能及其变化规律,获得了凝结核的数密度、体积浓度和粒度分布谱、成核率等关键微物理性能参数。凝结核主要成分为氯化物,粒径分布范围是0.261~1.59μm,峰值粒径为0.609~0.942μm,数密度约为3.98×10~5~5.12×10~5个/cm~3,体积浓度为2.02×10~5~2.30×10~5μm~3/cm~3,其最大成核率约为3.07×10~(12)个/g。实验结果表明,由于大粒子对于体积浓度的贡献度较大,因此凝结核粒子的数密度分布特征与体积浓度分布特征并不完全一致。
In this paper, electrical low-pressure impactor(ELPI),scanning electron microscope(SEM), and XRD diffraction instrument(XRD) techniques were used to characterize the particle size distribution, chemical composition and microstructure of coagulate nucleus of warm fog. By means of real-time observation and sampling of coagulate nucleus, the microphysical performance,number density,particle size distribution and nucleation rate of coagulate nucleus of artificial fog were acquired. The coagulate nucleus ware mainly made up of chloridate. The particle size distribution range was 0.261~1.59μm, and the crest value of size distribution was 0.609~0.942μm. The number density of coagulate nucleus was 3.98×10~5~5.12×10~5/cm~3,the volume concentration of coagulate nucleus was 2.02×10~5~2.30×10~5μm~3/cm~3. The maximum nucleation ratio was 3.07×10~(12)/g. These experiment results showed that the big particles of coagulate nucleus play a more important role on the volume concentration, and the number density distribution feature of coagulate nucleus is different from that of the volume concentration feature.

引文

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