| 气体易燃特性受限空间实验测定方法的研究 |
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| 引用本文： | 叶树亮,张晟,王学影. 气体易燃特性受限空间实验测定方法的研究[J]. 传感技术学报, 2010, 23(3): 307-310. DOI: 10.3969/j.issn.1004-1699.2010.03.004 |
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| 作者姓名： | 叶树亮 张晟 王学影 |
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| 作者单位： | 中国计量学院计量测试工程学院,杭州,310018;中国计量学院计量测试工程学院,杭州,310018;中国计量学院计量测试工程学院,杭州,310018 |
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| 摘 要： | 气体易燃特性是化学危险品分类及标记全球协调制度(GHS)中安全数据表制定以及GB 20577-2006中气体危险性分类的重要依据,由易燃气体爆燃浓度上、下极限值描述。目前在化学品性质数据库中仅有部分单元气体的易燃特性信息,对于多元混合气尚无有关易燃性极限的描述,传统多元气体易燃性极限的经验公式估算法存在误差大的特点。本文研制了基于燃爆状态特征信息提取与分析的受限空间内气体易燃性极限自动检测系统。在引入流量修正项的气体浓度增量调节技术的基础上,提出了一种气体易燃性极限的离散逼近搜寻法,运用多传感器联合燃爆状态辨识技术实现火焰精确捕捉。多种典型试样测定结果表明:本系统气体易燃极限的测量不确定度优于2%。
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| 关 键 词： | 易燃浓度极限值 受限空间 离散逼近 燃爆状态辨识 |
Research on Detection Method of Gas Flammability in Confined Space |
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| WANG Xueying,ZHANG Sheng,YE Shuliang. Research on Detection Method of Gas Flammability in Confined Space[J]. Journal of Transduction Technology, 2010, 23(3): 307-310. DOI: 10.3969/j.issn.1004-1699.2010.03.004 |
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| Authors: | WANG Xueying ZHANG Sheng YE Shuliang |
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| Affiliation: | College of Metrological Technology & Engineering;China Jiliang Univ.;Hangzhou 310018;China |
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| Abstract: | Gas flammability is an important basis for establishment of the Safty Data Sheet in the Globally Harmonized System of Classification and Labelling of Chemicals(GHS) and classification of gas hazardous-characteristic according to GB 20577-2006,which is normally described by gas flammability-limits.At present,only the flammability-limits of a few typical gases can be retrieved in chemical nature databases.There is no information about flammability of gas mixtures with traditional method based on empirical for... |
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| Keywords: | flammability limits confined space discrete approximation deflagration characteristic-parameters recognition |
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