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液化石油是一种重要的能源,广泛用作城市煤气和工业染料,在上个世纪七十年代的世界能源消耗中,天然气约占18%～19%,天然气也是重要的化工原料。天然气的特点是易燃、易爆、受热膨胀、带电、腐蚀等特性,比空气重,外泄的气体会汽化成比原体积大约二百五十倍的可燃气体,沿着地面漂浮,迅速向低洼处扩散,不易受风的影响而吹散,极大地提高了与火源接触的机会,一旦遇到明火就会燃烧或爆炸。随着液化石油气走进寻常百姓的日常生活中,液化石油气火宅的爆炸事故也频繁发生,对人民生命财产安全造成了重大的损失。因此加强对这一类火灾爆炸事故的研究和预防,可以最大程度上减少事故的发生和降低事故造成的危害。
Liquefied petroleum gas is an important energy source and widely used as city gas and industrial dye. Natural gas accounted for about 18-19% of the world’s energy consumption in the 1970s. Natural gas is also an important chemical raw material. Natural gas is characterized by flammable, explosive, thermal expansion, charging, corrosion and other characteristics than the air, the leakage of gas will be vaporized into about two hundred and fifty times the original volume of combustible gas, floating along the ground, quickly Diffusion in low-lying areas, less susceptible to the impact of the wind blew, greatly improving the chance of contact with the source of fire, in the event of an open flame will burn or explode. With the liquefied petroleum gas into the everyday life of ordinary people, explosions of liquefied petroleum gas fire houses also occur frequently, causing significant losses to people’s lives and property. Therefore, strengthening the research and prevention of such fire and explosion accidents can minimize the occurrence of accidents and reduce the harm caused by accidents.