Experimental Study of LNG Transportation Tank Leakage, Pool Fire Suppression

摘要

As an efficient clean energy, LNG (Liquefied Natural Gas) has been widely applied in many fields. Large-scale LNG vehicle transportation is becoming more and more frequent, and due to accidents involving LNG transportation tanks, tank leakage, pool fire and explosion accidents are also increasing. Large-scale LNG tanker leaks, as well as pool fire and explosion experiments are carried out in a 5 m x 3 m x 1.5 m deep experimental pool. LNG tanker leakage, LNG discharge and gasification due to different conditions of loading pressure, and LNG pool combustion, gas cloud explosion accident evolution and chain disaster accident probability and its influencing factors are analysed in the paper. The fire fighting suppression effectiveness are also analysed by using the powder gun and high foam in the large scale LNG pool fire. On the basis of the experiments, the LNG leakage, explosion and pool fire disasters accident evolution mechanism, including fire emergency disposal tactics and LNG tank fire effective suppression strategy are proposed. The results of the experiments are also of great significance and value to improve the efficiency of LNG tanker accident emergency disposal.