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["Tubo de combustibleilioa con amón"

2020-01-03View Original

Thread Content

"Normalmente, utilizamos la con封封方式对可燃气进行密封,以防止回火现象的发生,如下图,氮气分子量为28,一般放空气里面含有H2、CH4、CO等等的可燃气体,比氮气分子量都小,比氮气还轻,放空气在放空过程中折流往回返把大量的氮气都带跑了,虽然在不断的补充氮气,但是氮封罩里个人认为是氮气与可燃气的混合物,也存在安全隐患,????????????希望各位海友指导,是上面的这样工作过程吗?"
Reply #22020-01-04
"¿难道是氮气主要存在与管线中,隔绝回火中大气中氧气进入火炬管线吗?" ""
Reply #32020-01-20
"Primero debes entender qué es una retorilación为什么回火?只有当放空气的流速小于回火燃烧的速度,这样才会发生回火。充入氮气是为了保证微正压,出口有一定的流速,这样就不容易发生回火爆炸的事故你所说的被带走,最终还是流向出口也就意味着系统是安全的。回火爆炸一般都发生在排放快结束的时候这样出口流速太小回火燃烧的速度大于流速就往管道里面烧回来如果有氮气的补充可以保证最小流速那么这个系统是安全的。"

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