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): 1131-1134.

• • 上一篇    下一篇

水成膜泡沫扑救沸溢性油品火灾试验研究

胡成1,2,3, 包志明1,2,3, 柯鑫1,2,3, 张宪忠1,2,3   

  1. （1. 应急管理部天津消防研究所，天津 300381；2. 工业与公共建筑火灾防控技术应急管理部重点实验室，天津 300381；3. 天津市消防安全技术重点实验室，天津 300381）
  • 出版日期:2023-08-15 发布日期:2023-08-15
  • 作者简介:作者简介：胡 成（1987- ），男，河北保定人，应急管理部天津消防研究所副研究员，主要从事消防技术、灭火系统研究，天津市南开区卫津南路110号，300381。
  • 基金资助:
    基金项目：国家重点研发计划课题（2022YFC3004905）；中央级公益性科研院所基本科研业务费项目（2022SJ14）

Experimental study on aqueous film-forming foam extinguishment of boil-over oil fire

Hu Cheng1,2,3, Bao Zhiming1,2,3, Ke Xin1,2,3, Zhang Xianzhong1,2,3   

  1. (1. Tianjin Fire Science and Technology Research Institute of MEM,Tianjin 300381,China;2. Key Laboratory of Fire Protection Technology for Industry and Public Building,Ministry of Emergency Management,Tianjin 300381,China;3. Tianjin Key Laboratory of Fire Safety Technology,Tianjin 300381,China)
  • Online:2023-08-15 Published:2023-08-15

摘要： 为研究水成膜泡沫（AFFF）扑救沸溢性油品火灾的灭火效果和灭火机理，搭建了小尺度沸溢性油品火灾试验装置，研究不同泡沫供给强度下的灭火效果。结果表明，使用AFFF泡沫灭火剂扑救沸溢性油品火灾时，喷射出的泡沫施加到高温的沸溢性油品表面后，泡沫受蒸发作用快速消失，油面呈现剧烈沸腾状态，火焰高度急剧抬升，热辐射强度大幅提高；AFFF扑救沸溢性油品火灾的灭火机理是冷却作用，一是直接冷却了表层沸溢性油品温度，二是通过油品内部热对流间接冷却了下层油品温度，当表层油品温度被冷却到自燃点以下后火焰熄灭；推算出AFFF泡沫扑救沸溢性油品火灾的最佳泡沫溶液供给强度为25 L/（min·m2）。

关键词: 沸溢性油品, 水成膜泡沫, 灭火机理, 冷却, 泡沫溶液供给强度

Abstract: Abstract: In order to study the fire extinguishing effect and fire extinguishing mechanism of aqueous film?forming foam(AFFF) against boil?over oil fire, a small?scale boil?over oil fire test device was set up to study the fire extinguishing effect under different application rates of foam solution.The results show that when AFFF foam extinguishing agent is used to extinguish boil?over oil fire, after the foam was applied to the boil?over oil surface at high temperature, the foam disappears rapidly via the action of evaporation, the oil surface presents a violent boiling state, the flame height rises sharply, and the heat radiation intensity increases greatly. The fire extinguishing mechanism of AFFF is cooling effect. Firstly, it directly cools the surface boil?over oil temperature; secondly, it indirectly cools the bottom oil temperature through the thermal convection inside the oil. When the surface oil temperature is cooled below the spontaneous combustion point, the flame goes out. The optimum application rate of foam solution for AFFF to quench boil?over oil fire was determined as 25 L/（min·m2）.

Key words: boil?over oil, aqueous film?forming foam, fire fighting mechanism, cooling, application rate of foam solution