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爆炸事故的种类 | 2012-11-11 9:01:00

爆炸可分为物理性爆炸和化学性爆炸两种。
    (1)物理性爆炸
    这种爆炸是由物理变化引起的,物质因状态或压力发生突变而形成爆炸的现象称为物理性爆炸。例如,容器内液体过热气化引起的爆炸,锅炉的爆炸,压缩气体、液化气体超压引起的爆炸等。物理性爆炸前后物质的性质及化学成分均不改变。
    (2)化学性爆炸
    由于物质发生极迅速的化学反应,产生高温、高压而引起的爆炸称为化学性爆炸。化学爆炸前后物质的性质和成分均发生了根本的变化。化学爆炸按爆炸时所产生的化学变化,可分成三类。
    ①简单分解爆炸
    引起简单分解爆炸的爆炸物,在爆炸时并不一定发生燃烧反应,爆炸所需的热量,是由于爆炸物质本身分解时产生的。属于这一类的有叠氮铅、乙炔银、乙炔酮、碘化氮、氯化氮等。这类物质是非常危险的,受轻微振动即引起爆炸。
    ②复杂分解爆炸
    这类爆炸性物质的危险性较简单分解爆炸物低,所有炸药均属之。这类物质爆炸时伴有燃烧现象。燃烧所需的氧由本身分解时供给。各种氮及氯的氧化物、苦味酸等都属于这一类。
    ③爆炸性混合物爆炸
    所有可燃气体、蒸气及粉尘与空气混合而形成的混合物的爆炸均属于此类。这类物质爆炸需要一定条件,如爆炸性物质的含量、氧气含量及激发能源等。因此,其危险性虽较前两类低,但极普遍,造成的危害性也较大。

  • 标签:爆炸 事故 种类 
  • Re:爆炸事故的种类 | 2012-11-11 9:02:58
    章仁根了解爆炸事故的种类,落实安全措施,确保生产使用安全.
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    原创 | 2016-9-6 21:24:13
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    Re:在漫画中识别身边的违章 | 2016-10-8 19:27:58
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    Re:在漫画中识别身边的违章 | 2016-10-16 21:53:51
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    Re:在漫画中识别身边的违章 | 2016-10-17 13:03:38
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    Re:在漫画中识别身边的违章 | 2016-10-20 7:45:52
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    Re:在漫画中识别身边的违章 | 2016-10-20 17:24:44
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    Re:在漫画中识别身边的违章 | 2016-10-21 15:40:13
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    Re:在漫画中识别身边的违章 | 2016-10-21 21:22:49
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    Re:在漫画中识别身边的违章 | 2016-10-23 4:10:30
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    Re:在漫画中识别身边的违章 | 2017-2-18 15:22:11
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