http://www.esafety.cn/blog/wll/66030/index.html

安全生产事故案例分析习题(26)

作者[孙锡云] 发表于[2011-7-29 11:19:00]

安全生产事故案例分析习题(26)

  某年5月,某化肥厂卸油站工人,在使用临时泵与胶管卸轻油作业时,引发大火,在场4名工人31伤。其主要原因:

  (1)由于是临时设施,工作不细,存在几处漏油点。当时气温为36℃,导致大量漏油挥发,较高浓度、比空气重的可燃气聚集于地面;

  (2)使用临时泵与胶管不配套,使胶管内轻油流速大大超过规定的容许流速;

  (3)未在临时泵与胶管上安装接地装置。

  一、单项选择题

  1.引发火灾的三要素是可燃物、氧化剂和点火源。下列选项中,_不可能成为点火源。

  A.木块在木板上摩擦  B.用钻头在钢板上打孔  C.雷电  D.烟头

  二、多项选择题

  2.从广义的角度看,防火防爆技术可以分为_等几方面的措施。

  A.消防措施  B.限制性措施  C.教育培训措施  D.疏散性措施

  3.一般将点火源分为机械火源、电火源、化学火源和热火源等4大类。以下选项中,属于机械火源。

  A.电气开关时打火  B.穿带铁钉鞋底在水泥地面行走产生的火花

  C.摩擦时产生的静电火花  D.高压气体高速从管道破裂处喷出引发着火

  三、简答题

  4.试述通过管道输送可燃液体时,预防静电起火最基本的措施是什么?

  5.简述本次火灾的发生原因。

  参考答案  1.A  2.ABD  3.BD

  4.(1)严格控制管道中液体流速,使其低于限制流速(可查有关国家标准、行业标准或有关资料);(2)设置符合标准的接地装置。

  5.(1)漏油蒸发的油气在空气中浓度超过爆炸下限或处于爆炸极限范围内;(2)由于胶管内轻油流速大大超过规定的容许流速,致使胶管内产生静电,而且没有安装接地装置,使静电得以积聚。当静电压达到一定程度时,对地放电,导致火灾。

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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原创

作者[原创(游客)] 发表于[2016-9-30 13:41:34]
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原创

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Re:在漫画中识别身边的违章

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原创

作者[原创(游客)] 发表于[2016-9-6 19:26:13]
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