Quantitative analysis on fire and explosion accident of LNG tank

In this paper the basic situation of a gas station was introduced.One 3000 m3 spherical tank of natural gas tank area was analyzed by American DOW chemical index evaluation method.The evaluation result showed that the danger index for fire explosion was 149.1 and its risk level was larger.During the storage process,if the gas in storage tank fired and exploded,the equipments,facilities and personnel within the radius 38.17m and area 4574.82 m2 would be destroyed and damaged.This case would cause great economic losses,and the maximum property damage was 0.66A million yuan.Because some security measures had been taken to this unit for safety compensation,the loss of accidents was effectively reduced.It provided reference for opreating managers to completely understand the risk status of the tank field.The indicators provided a basis for natural gas tank area planning management,accident prevention and emergency rescue.