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气体爆炸有两类,即爆燃与爆轰。两者的区别,主要在于其火焰速度和结构及其破坏力。爆燃火焰在燃烧介质中的传播,低于同介质中常温常压下的声速;而爆轰,与燃烧波同时并发了冲击波,是以常温常压下同介质中声速的好多倍而传开来。但压力是以其介质中的固有声速而传播,因而对爆轰的作用,就不可能籍洩压来保护厂房。故本文只限于对爆燃的讨论。
There are two types of gas explosions, namely deflagration and detonation. The difference between the two lies mainly in its flame speed and structure and its destructive power. The propagation of the deflagration flame in the combustion medium is lower than the sound velocity at normal temperature and pressure in the same medium. However, the detonation and the simultaneous occurrence of the shock wave with the combustion wave are spread out at the same temperature and pressure as the sound velocity in the medium . However, the pressure is transmitted by the inherent sound velocity in its medium, and thus the effect of detonation can not be relieved to protect the plant. This article is therefore limited to discussion of deflagration.