Domino Effect and Prevention Strategy of Hazardous Chemical Laboratory Accidents
Taking a laboratory of hazardous chemicals in a university in Guangdong as an example,the Domino effect of accidents involving propane,methanol and ethanol in a laboratory of hazardous chemicals was studied by combining theoretical calculation and numerical simulation.The results show that propaning primary accidents can easily lead to second-level accidents with methanol and ethanol,second-level accidents with methanol can easily lead to third-level accidents with propane and ethanol,and second-level accidents with ethanol will inevitably lead to third-level accidents with methanol.When the accident radiuses are r1 ≤9 m,r2≤6m,r3≤12 m,r4≤15 m,the death probabilities D1,D2,D3 and D4 are 100％.The probability of death at 16.5m away from the third-level accident center decreases rapidly to 17.66％.The prevention and control strategy of hazardous chemical laboratory accidents dominoes is proposed from four aspects,including safety distance and optimal layout,safety barrier,accident escalation threshold and dynamic risk monitoring,to prevent laboratory Domino accidents in advance,which provides theoretical guidance for the prevention of major Domino accidents in university laboratories and petrochemical industry.
laboratory safetyhazardous chemicalsDomino accidentprevention and control strategy
万方数据
维普
