关键词: 石油化工企业, 建筑物, 抗爆评估, 危险源辨识, 基于后果, 基于风险, 爆炸冲击波

Abstract: In order to determine whether the petrochemical buildings need blast resistance design, two methods based on consequence and risk are proposed to carry out blast resistance assessment. PHAST&SAFETI series software of DNV is used to calculate the overpressure value of buildings subjected to the blast wave of a refinery project. According to the result based evaluation method, the leakage scene with a leakage aperture of 25 mm is selected for calculation. It is concluded that the cabinet room, control room and other buildings with overpressure value greater than 6.9 kPa should adopt blast resistance design, and the building with overpressure value greater than 48 kPa should optimize the layout. Based on the risk assessment method, it is calculated that the blast resistance design should be adopted for buildings with frequency greater than 1×10^-4 and overpressure value greater than 6.9 kPa blast wave. Two methods of blast resistance evaluation of buildings are put forward, which provide basis for buildings blast resistance design and general plane optimization design in petrochemical enterprises.

Key words: petrochemical, buildings, blast resistance assessment, hazard identification, based on the consequences, based on the risk, blast wave