主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2023, Vol. 42 ›› Issue (8): 1074-1078.

• • 上一篇    下一篇

穿斗式民居建筑高压细水雾系统控火效果研究

张扬1, 张健2, 高学文2   

  1. （1. 云南省消防救援总队，云南 昆明 650200；2. 昆明理工大学 建筑工程学院，云南 昆明 650500）
  • 出版日期:2023-08-15 发布日期:2023-08-15
  • 作者简介:作者简介：张 扬（1981— ），男，河南许昌人，云南省消防救援总队高级工程师，主要从事消防监督及科技管理工作，云南省昆明市海塘路666号，650200。
  • 基金资助:
    基金项目：云南省重点研发计划项目（202203AC100004）

Research on fire control effect of high pressure water mist system on Chuandou residential buildings

Zhang Yang1, Zhang Jian2, Gao Xuewen2   

  1. (1. Yunnan Fire and Rescue Brigade,Yunnan Kunming 650200, China; 2. Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Yunnan Kunming 650500, China)
  • Online:2023-08-15 Published:2023-08-15

摘要： 高压细水雾良好的冷却降温效果，对建筑初期火灾具有较好的抑制作用，可有效解决木结构建筑防火间距不足的问题，阻止建筑间火灾蔓延的发展。为探究高压细水雾雾化锥角、水压强度、喷雾速度及粒径大小等因素对木结构建筑火灾控火效果的影响，选取典型穿斗式民居建筑为研究对象，采用FDS建立火灾模型，分析上述各因素对细水雾抑制木结构建筑火灾效果的影响。结果表明：上述影响因素均对高压细水雾的控火效果具有较大影响，雾化锥角为120°、喷雾压力为10.00 MPa、喷雾速度为10 m/s、粒径大小为300 μm时的灭火效果最佳，可以产生最高的渗透能力，7.3 s即可完成灭火。

关键词: 木结构建筑, 高压细水雾, 灭火效果, 火灾热释放速率

Abstract: Abstract: The excellent cooling effect of high?pressure water mist has a good inhibitory effect on early fire in buildings, which can effectively solve the problem of insufficient fire separation in wooden structures and prevent the spread of fire between buildings. In order to explore the influence of high?pressure water mist atomization cone angle, water pressure intensity, spray speed and particle size on the smoke resistance and heat insulation performance of wood structure buildings, a typical Chuandou residential building is selected as the research object, and a fire model is established by using FDS to analyze the influence of the above factors on the fire suppression effect of the wooden structure building, and the validity of the simulation results is verified by experiments. The results show that the above factors have a great impact on the fire extinguishing effect of high?pressure water mist. The simulation results show that the best fire extinguishing effect is achieved when the atomization cone angle is 120°, the spray pressure is 10.00 MPa, the spray speed is 10 m/s, and the particle size is 300 μm, which can produce the highest penetration capacity, and the fire extinguishing can be completed in 7.3 s.

Key words: wooden structures, high?pressure water mist, fire extinguishing effect, heat release rate