On hazardous areas of fire and explosion for storage tank in the filling station

The storage tank area of filling station has probability of fire and explosion accidents and the consequences of fire and explosion are very serious.To realize the reasonable layout of filling stations,the pool fire mathematical model was put forward to calculate the consequences of fire accidents in storage tank area,different hazard distances were derived on basis of different thermal radiation damage,explosion energy was calculated by using vapor cloud explosion mathematical model,injury degrees on buildings,personnel and hazard distances were assessed with G.M.likhoff formula.It is important that hazardous distance of fire and explosion is determined for location,construction,layout,risk control of filling stations.Under the same dangerous circumstance,explosion hazardous area is farther than fire hazardous area,and safety distance of explosion is farther than fire's.So,according to the algorithm,the hazardous area of explosion is mainly considered when buildings,structures,equipments and facilities are set around the filling stations.