气瓶内附油脂充氧过程爆炸实际油脂量计算  

Analysis and Calculation of Oil in Oxygen Cylinder Filling Explosion

作　　者：李冬[1] 陶刚[1] 张礼敬[1] 许丹枫[1] 

机构地区：[1]南京工业大学城市建设与安全工程学院,南京210009

出　　处：《工业安全与环保》2012年第5期36-38,51,共4页Industrial Safety and Environmental Protection

基　　金：国家863项目(2007AA06A402)

摘　　要：通过热力学计算，充氧12MPa时，导致氧气瓶爆炸需要的最小油脂量为66．4－79．6g。同一气瓶在不同的充装压力下发生爆炸，所需要的最小油脂放热量不同，即所需要的油脂量不同。同一气瓶充装压力越高，瓶内的气体压缩能越高，导致气瓶爆炸所需要的最小油脂量就越少。实际求解碎片运动的动力学方程，得到碎片的初动能仇，并推断气瓶实际爆炸能量。Pressure gauge shows that cylinder explosion occurs while oxygen cylinder is charged with 12.0 MPa and the minimum explosion pressure of oxygen cylinder is 37.6 MPa; oxygen pressure increases from 12.0 MPa to 37.6 MPa by oil oxidation combustion. Moreover, inverse calculation shows that the minimum oil amount leading to burst of cylinder is be- tween 66.4 g and 79.6 g; minimum oil amount leading to burst of cylinder decreases with the increase of filling pressure. Initial kinetic energy Ek of fragments is obtained by studying dynamic equations of fragments motion.

关 键 词：气瓶 爆炸 充氧过程 油脂 

分 类 号：X928.7[环境科学与工程—安全科学]