不同水喷淋强度条件下医院病房火灾特性数值模拟研究  

Numerical simulation of hospital ward fire characteristics under different water spray intensity

作　　者：陆时正 徐培哲 姚磊 李明龙 Lu Shizheng;Xu Peizhe;Yao Lei;Li Minglong(Wuhan Caidian District Fire and Rescue Brigade;China Shipbuilding and Marine Engineering Design and Research Institute;China University Wuhan)

机构地区：[1]武汉市蔡甸区消防救援大队 [2]中国船舶及海洋工程设计研究院 [3]中国地质大学

出　　处：《工程建设标准化》2024年第2期78-83,共6页Standardization of Engineering Construction

基　　金：中央高校基本科研业务费专项资金资助项目(1623601212668)。

摘　　要：为了给医院病房火灾水喷淋灭火降温设计提供参考,本文基于北京长峰医院火灾事故案例及水喷淋系统未及时启动的现状分析,使用CFD(Computational Fluid Dynamics)数值模拟方法对不同水喷淋强度下的医院病房火灾特性开展研究。结果表明,水喷淋对病房火灾产生的火焰有一定的抑制效果,且随着水喷淋强度的增大对火焰的抑制作用越强。水喷淋对病房火灾降温效果较为明显,随着水喷淋强度提高对病房的降温效果越好。在当前火灾场景和喷淋强度范围内,水喷淋对火灾烟气的抑制效果并不明显,病房内的能见度没有改善。In order to provide a reference for the design of fire sprinkler fire extinguishing and cooling in hospital wards,this paper uses CFD(Computational Fluid Dynamics)numerical simulation method to study the fire characteristics of hospital wards under different water sprinkler intensities based on the fire accident case of Beijing Changfeng Hospital and the analysis of the current situation that the water sprinkler system was not started in time.The results show that the water spray has a certain inhibitory effect on the flame generated by the ward fire,and the inhibition effect on the flame becomes stronger with the increase of the water spray intensity.The cooling effect of water spray on the ward fire is more obvious,and the cooling effect of the ward is better with the increase of water spray intensity.In the current fire scene and the range of sprinkler intensity,the suppression effect of water sprinkler on fire smoke is not obvious,and the visibility in the ward has not improved.

关 键 词：医院火灾 水喷淋 降温灭火 能见度 数值模拟 

分 类 号：TU892[建筑科学]