| 关于粉尘云爆炸下限浓度的讨论 |
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| 引用本文： | 周从章,张瑞萍.关于粉尘云爆炸下限浓度的讨论[J].中国安全科学学报,1995,5(3):39-42. |
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| 作者姓名： | 周从章 张瑞萍 |
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| 作者单位： | 兵器工业安全技术研究所 |
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| 摘 要： | 运用Ｓｉｗｅｋ２０升球形粉尘爆炸装置，通过对几种工业粉尘测试研究，发现粉尘最低爆炸下限浓度与燃烧持续时间有关。对于不同的粉尘，从压力一时间曲线中得出的最大持续时间与利用ＩＥＣ标准测定的爆炸下限浓度相接近。依据实验结果，提出了一种新的判据。
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| 关 键 词： | 粉尘爆炸，下限浓度，燃烧时间 |
ON THE CRITERION OF LOWER EXPRESSIBLELIMIT OF DUST CLOUD |
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| Zhou Cong-zhang , Zhang Rut-ping, Yu Yong-fang.ON THE CRITERION OF LOWER EXPRESSIBLELIMIT OF DUST CLOUD[J].China Safety Science Journal,1995,5(3):39-42. |
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| Authors: | Zhou Cong-zhang Zhang Rut-ping Yu Yong-fang |
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| Institution: | Safety Technology Research Institute |
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| Abstract: | By using Siwek-20L sphere apparatus, several industrial dusts have been studied. It isfound that lower expressible limit of dust cloud has been related to the duration of combustion. For different dusts, the maximum duration time of pressure-time curve is coincidedwith the lower expressible limit made by IEC standard. From the experiments a new criterion for LEL of dusts is suggested. |
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| Keywords: | Dust explosion Lower expressible Duration of combustion |
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