PACIFIC S24HNNA-RNVC-00,PACIFIC S24HNNA-RNVC-00
煤矿行业有毒有害气体的危害主要来源于瓦斯气体,所以瓦斯爆炸是煤矿行业发生最多,伤害也最大的矿难之一,但除了瓦斯以外,还有很多有毒有害气体的存在,对工人的安全造成严重的威胁,其中威胁最大的就是一氧化碳。
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厦门仲鑫达自动化设备有限公司
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瓦斯本身就是一种混合气体,它是煤层开采过程中自发形成的,以甲烷为主,另外还有一氧化碳、二氧化碳、硫化氢等。而且瓦斯爆炸后,由于气体的不完全燃烧等等,会产生大量的CO气体。其次,当井下开采执行爆破工作后,也会有CO气体的形成,还有高炉煤气等等,都会有CO,极易造成工作人员的中毒。
CO是一种无色、无味、有剧毒的气体,而且它可以燃烧,当含量在13%~75%时,遇火能引起爆炸。一氧化碳的毒性极强,而且是在不知不觉中让人中毒,并让人毫无抵抗能力,当其含量达0.4%时,人在短时间内就可中毒死亡。
所以,为了能够避免一氧化碳中毒事故的发生,工人只有时刻了解当前的CO浓度情况,来保证自身的安全,而一氧化碳检测仪就是用来实时检测CO浓度并报警的仪器,《规程》规定CO气体最高容许浓度为0.0024%,所以,一氧化碳检测仪的报警点可设置为24ppm,在仪器发出报警提示时,一定要尽快离开现场并采取措施。 A6X30046918 INV,DC,460V,3PH,45KW,92A,MC+OPTIONS Siemens
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