车用CNG气瓶物理性爆炸能量及其危害研究

Study on Physical Explosion Energy and Hazards of CNG Cylinders for Vehicles

采用不同的方法计算气瓶物理性爆炸产生的能量,分析爆炸前气瓶容积、储气压力与爆炸能量的关系,研究自由场空气中气瓶爆炸产生的冲击波超压峰值与测点到爆炸点的距离的关系,得到气瓶物理性爆炸对人体产生不同程度损伤的作用范围,以及对汽车的危害程度。

Different methods are used to calcu- late the physical explosion energy of CNG cylinder. The relationship of cylinder volume and gas storage pressure before explosion to explosion energy is ana- lyzed, and the relationship between shockwave over- pressure peak from cylinder explosion in free air field and the distance from the measuring point to the explo- sion point is studied. The scope of different degrees of damage to the human body and the hazard degree to the vehicle caused by physical explosion of CNG cylinder are obtained.