涡扇炮在储油罐火灾中的灭火效能研究OA

In order to explore the effectiveness and mechanism of turbofan cannons in extinguishing oil tank fires,a composite combustion system was constructed.Through a multidimensional thermocouple ar-ray and thermal radiation monitoring network,the evolution of temperature field and thermal radiation field during the fire extinguishing process were analyzed.The results show that the synergetic effect of wa-ter mist and fluoroprotein foam,driven by the turbofan cannon,can achieve efficient fire extinguishing,forming a"cooling-asphyxiation-isolation"synergetic mechanism.The water mist produces a rapid cooling of 40℃/s during the phase change and heat absorption stage,and the fluoroprotein foam forms a durable sealing layer,which can completely extinguish the fire within 49 s under the synergetic effect.Therefore,turbofan cannons have significant advantages in extinguishing three-dimensional and flowing fires in oil storage tanks.