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摘要本文以激波管实验为主要研究手段，研究了网状铝合金和球形非金属材料在丙烷/空气预混气中的阻火防爆能力以及在 60℃空气中氧化一个月对它们抑爆能力的影响。分别对未经氧化以及经 60℃空气氧化一个月的网状铝合金和球形非金属四种材料进行了力学性能及抑爆性能实验研究和比较。实验结果表明，网状铝合金和球形非金属材料都具有很好的抑爆能力，对火焰速度的遏制有着很好的线性规律；经高温空气氧化使两类材料的力学强度和抑爆能力都有所下降，但球形非金属下降幅度更小。研究还表明，跟网状铝合金相比，球形非金属材料具有更好抗氧化能力和抑爆性能。 59965
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毕业论文关键词 阻火防爆 抑爆材料 球形非金属 抑爆性能
Title Research on explosion suppression mechanism of non-metallic explosion suppression material
Abstract With shock tube experiments as the main research tool, the present paper study the performance of mesh aluminum alloy and spherical non-metallic materials in propane gas pipeline preventing fire and suppressing explosion as well as in 60℃ air oxidation a month to their effects on explosion suppression ability. The report make the experimental study and comparing about the mechanics performance and explosion suppression performance of four material which separately are the mesh aluminum alloy and spherical non-metallic without oxidation and the mesh aluminum alloy and spherical non-metallic via 60℃ air oxidation. Experimental results show that the mesh aluminum alloy and spherical non-metallic materials also have well explosion suppression capability, well linear regularity on suppressing flame speed; Oxidized by high temperature air make the two kind of material mechanical strength and explosion suppression ability is declined, but less falling range on spherical non-metallic. Research also show that, compared with mesh aluminum alloy, the spherical non-metallic materials has better oxidation resistance and explosion suppression performance.
Keywords fire prevention and explosion suppression explosion suppression material spherical non-metallic explosion suppression performance
目录
1 引言 .. 1
1.1 研究意义和应用前景 . 1
1.2 管道内预混可燃气体的燃爆特性研究 ... 1
1.3 抑爆材料对燃爆过程抑制作用研究 .. 3
1.4 本文工作 . 4
2 抑爆材料的技术特性 .... 5
2.1 网状铝合金材料的特性 .. 5
2.2 球形非金属材料的特性 .. 5
3 抑爆材料的力学性能实验 . 7
3.1 实验目的 . 7
3.2 实验手段 . 7
3.3 抗压抗拉强度测试结果及分析 ... 10
3.3.1 铝合金的抗拉性能试验 .. 10
3.3.2 球形非金属材料抗压性能试验 10
4 不同装填条件的激波管实验 12
4.1 实验装置系统 . 12
4.1.1 供气系统 . 12
4.1.2 激波管主体 .. 12
4.1.3 点火系统 . 12
4.1.4 数据采集及分析系统 . 12
4.2 预混气和进气装置的设计、安装及调试 .. 13
4.3 实验条件 .... 13
4.4 实验过程 .... 14
4.4.1 丙烷、空气混合 .... 14