数值模拟研究BLEVE火灾中的火球

Numerical simulation study on fireball in BLEVE fire

在火灾侵袭作用下,低沸点可燃液体储罐可能会发生破裂,形成沸腾液体扩展蒸汽爆炸(BLEVE),喷射的可燃蒸汽遇火源会形成火球,对周围环境和人员造成巨大的损害。文章以LNG爆炸事故为例,采用FDS软件数值模拟研究火球的形态和热辐射强度,并评估火球的危害、得出相应的结论,希望能为大家提供参考。

Under the action of fire,low-boiling flammable liquid storage tanks may rupture,forming a boiling liquid extended vapor explosion(BLEVE).The injected flammable vapor will fbnn a fireball when it encounters a fire source,causing huge damage to the surrounding environment and people.Taking the LNG explosion accident as an example,the paper uses FDS software to numerically simulate the shape and thermal radiation intensity of the fireball,evaluate the hazard of the fireball,and draw corresponding conclusions.Ifs hoping to provide a reference.