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只听“轰”的一声巨响,人们震呆了,一切都凝固了。等人们清醒过来时,才发现修理点上正在补焊的汽油桶已飞出13米外,打断了路旁的一棵小杨树,幸好没有伤着人!——这事发生在陕西南郑县石拱乡的一个修理点。那么,补焊汽油桶为什么会爆炸呢? 装过汽油的油桶内,充满了汽油和空气的混合气,这种混合气遇到明火就会爆炸。据测定,在一个空的200升的油桶内,当有0.016～0.024千克汽油,而这些汽油全部蒸发成气体充满在桶内时,遇到火星就会爆炸。在一般情况下,油桶内的残存汽油约为
Just listen to a loud noise “boom”, people were shocked, everything is frozen. When people wake up, only to find repair point is refueling barrels of gasoline have been flying 13 meters, interrupted by a poplar on the roadside, but fortunately no harm! - This happened in Shaanxi South Zheng County Stone Arch Township, a repair point. Then, why refueling barrels explode it? Installed over the barrel of gasoline, filled with a mixture of gasoline and air, this mixture will encounter an open flame will explode. It is determined that in an empty 200-liter oil drum, when there is 0.016 ~ 0.024 kg of gasoline, and all of these gasoline evaporated into gas filled in the barrel, the encounter Mars will explode. Under normal circumstances, the remaining oil in the drum is about