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 (10): 1403-1407.

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高压细水雾灭火系统抑制古建筑轰燃的试验研究

余平伟1,2, 王奕鑫2, 田雅婷2, 乔艺强3   

  1. （1. 河南省交通规划设计研究院股份有限公司，河南 郑州 451460；2. 郑州大学 水利与土木工程学院，河南 郑州 450001；3. 合肥科大立安安全技术有限责任公司，安徽 合肥 230088）
  • 出版日期:2023-10-15 发布日期:2023-10-15
  • 作者简介:余平伟(1981- )，男，河南三门峡人，河南省交通规划设计研究院教授级高级工程师，郑州大学水利科学与工程学院硕士生导师，注册公用设备师（给水排水）,一级注册消防工程师，主要从事建筑给排水、消防、海绵城市、绿色建筑设计与研究，河南省郑州市郑东新区泽雨街9号，451460。

Experimental study of high⁃pressure fine water mist fire extinguishing system to suppress flashover ignition in ancient buildings

Yu Pingwei1,2, Wang Yixin2, Tian Yating2, Qiao Yiqiang3   

  1. (1. Henan Communications Planning & Design institute Co.,Ltd. , Henan Zhengzhou 451460, China; 2. School of Water Conservancy and Civil Engineering, Zhengzhou University, Henan Zhengzhou 450001,China; 3. Hefei Kdlian Safety Technology Co.,Ltd., Anhui Hefei 230088, China)
  • Online:2023-10-15 Published:2023-10-15

摘要： 为探明高压细水雾对古建筑火灾轰燃的抑制效果，通过Pyrosim软件模拟与搭建试验平台的方式进行试验，测定了火灾联动报警下细水雾的自启动时间，以及不同喷雾强度下古建筑火灾烟气层温度、火场热释放速率，并结合综合轰燃预测法分析了开启细水雾时古建筑内轰燃发生状况。结果表明，当火灾发生后103 s时开启细水雾，喷雾强度1.3 L/（min.m2）的高压细水雾能抑制古建筑火灾轰燃，喷雾强度2.0 L/（min.m2）的高压细水雾能熄灭古建筑火灾；试验证明了高压细水雾能够有效地抑制古建筑火灾轰燃，为高压细水雾灭火系统应用于古建筑消防设计提供参考。

关键词: 古建筑, 轰燃, 高压细水雾灭火系统, Pyrosim软件模拟, 实体火灾试验

Abstract: In order to investigate the effect of high-pressure fine water mist on the suppression of ancient building fires, this paper simulates and builds an experimental platform through Pyrosim software to determine the the self starting time of fire water mist under fire linkage alarm,temperature of the smoke layer of ancient building flashover under different spray intensities, the rate of heat release from the fire, combined with a comprehensive fire prediction method to analyse the occurrence of flashover in ancient buildings when the fine water mist is turned on. The results show that the fine water mist turned on 103 s after the fire occurred; the high-pressure water mist with a spray intensity of 1.3 L/（min·m2） can suppress the ancient building flashover, and the high-pressure water mist with a spray intensity of 2.0 L/（min·m2） can extinguish the ancient building flashover. High-pressure fine water mist can effectively inhibit the ancient building flashover, the study can provide reference for high-pressure fine water mist fire extinguishing system applied to the ancient building fire design.

Key words: historic building, flashover, high-pressure fine water mist fire extinguishing system, Pyrosim software simulation, physical fire experiment