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我们都知道,空气(氧气)是人类赖以生存的基本条件之一.但是,若生产车间、实验室或其它一些场所的空气中混入了可燃性气体和氧气,从防火的角度说是极不安全的,可能给人们带来灾难.在这些气体中,有些是无色无嗅的,凭人的感觉很不容易觉察和发现.空气中可燃性气体的浓度过高,遇到明火就可能燃烧;而一旦超过了爆炸极限,就有爆炸的危险.氧气是助燃剂,当空气中氧气的浓度增加到25%时,已能激起活泼的燃烧了;达到27%时,火星将发展到活泼的火焰.那么,空气中的可燃性气体和氧气都是怎样混进去的呢?1.安装、维修、保养、操作不当等原因;贮存、输送可燃性
As we all know, air (oxygen) is one of the basic conditions for the survival of mankind, but if flammable gases and oxygen are mixed into the air of a workshop, a laboratory or other places, it is very fireproof Safe, may bring disaster to people.In some of these gases are colorless and odorless, with people’s feelings is not easy to detect and find the concentration of flammable gases in the air is too high, in the face of open fire may burn ; And once it exceeds the explosion limit, there is a danger of explosion. Oxygen is a combustion improver that ignites lively combustion when the concentration of oxygen in the air increases to 25%; at 27%, Mars will develop into a lively Then the flammable gases and oxygen in the air are mixed into what? 1, installation, maintenance, maintenance, improper operation and other reasons; storage, transport flammability