船舶典型舱室内细水雾灭火降温性能仿真研究

细水雾灭火系统在船舶消防领域得到广泛应用,但是针对船舶舱室细水雾灭火性能的研究相对有限。为探究细水雾对船舶火灾灭火的有效性,采用FDS软件,针对细水雾在两类典型的船舶舱室（大空间的储存舱室和小空间的起居舱室）发生火灾后的灭火效果进行了仿真模拟研究。分析了粒径、雾化角度和流量系数对灭火降温性能的影响。仿真结果表明,大空间的储存舱室内细水雾灭火性能不佳,不能进行灭火降温;小空间的起居舱室内细水雾灭火降温性能相对良好。揭示了细水雾在起居舱室内的灭火性能随粒径减小而增强、随雾化角度减小而增强、随流量系数增大而增强的演化特性。

Simulation Research on fire-fighting and cooling performance of water mist in typical cabins of ships

At present, the application of water mist fire extinguishing system in the field of ships has attracted extensive attention, but there are few studies on the fire extinguishing performance of water mist in specific compartments. In order to explore the effectiveness of water mist in extinguishing ship fires, FDS software is used to simulate the fire extinguishing effect of water mist on two typical ship compartments (large space storage compartment and small space living compartment). The effects of particle size, atomization angle and flow coefficient on fire extinguishing and cooling performance were analyzed. The simulation results show that the fire extinguishing performance of water mist in the large space storage cabin is poor, and the fire extinguishing and cooling can not be carried out; The water mist fire extinguishing and cooling performance in the small living room is relatively good. It is revealed that the fire extinguishing performance of water mist in the living room increases with the decrease of particle size, the decrease of atomization angle and the increase of flow coefficient.