考虑火灾时空演变的海洋平台人员疏散评估方法

Study on the evaluation method of personnel evacuation consequences considering the spatiotemporal evolution of offshore platform fire

考虑海洋平台走廊区域火灾时空演变和人员应急疏散行为,提出一种火灾事故人员疏散后果的动态评估方法,并探索了热释放速率、烟灰产率等因素的变化对疏散人员伤害后果的影响。研究结果表明:热释放速率的增大导致火源附近的温度和辐射值不断升高,直接导致疏散人员伤害值和死亡概率的升高;而烟灰产率的变化则会影响人员的疏散速度,进而影响人员在火灾危害中的暴露时间,间接对人员疏散的伤亡后果造成影响。最后,根据人员的伤亡后果,对人员的疏散危险区域进行识别。

Considering the temporal and spatial evolution of fire in offshore platform corridor and personnel emergency evacuation be-havior,a dynamic evaluation method for personnel evacuation consequences of fire accidents was proposed,and the influence of the changes of heat release rate and soot yield on the injury conse-quences of evacuees was explored.The results show that the in-crease of heat release rate leads to the increasing of temperature and radiation values near the fire source,which directly leads to the increase of injury values and death probability of evacuees.The change of soot yield will affect the evacuation speed of per-sonnel,and then affect the exposure time of personnel in the fire hazard,and indirectly affect the casualties of personnel evacua-tion.Finally,according to the consequences of casualties,the evacuation danger area is identified.