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 ›› 2026, Vol. 45 ›› Issue (6): 105-111.DOI: 10.20168/j.1009-0029.2026.06.0105.07

• • 上一篇    下一篇

全氟己酮与全氟庚酮局部应用雾滴特性与灭火效能对比研究

赵青松1,2,3, 马建琴1,2,3, 王皓轩1,2,3, 化智超1,2,3, 王赛1,2,3, 杨帆1,2,3   

  1. （1.应急管理部天津消防研究所， 天津 300382； 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300382； 3.天津市消防安全技术重点实验室， 天津 300382）
  • 收稿日期:2026-02-24 修回日期:2026-03-10 出版日期:2026-06-15 发布日期:2026-06-15
  • 作者简介:赵青松，应急管理部天津消防研究所助理研究员，主要从事固定灭火系统技术开发与研究，天津市西青区富兴路 2 号，300382。
  • 基金资助:
    国家重点研发计划项目（2023YFC3010203）

Comparative study on droplet characteristics and fire extinguishing performance of perfluorohexanone and perfluoroheptanone for local application

Zhao Qingsong1,2,3, Ma Jianqin1,2,3, Wang Haoxuan1,2,3, Hua Zhichao1,2,3, Wang Sai1,2,3, Yang Fan1,2,3   

  1. (1. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300382, China; 2. Key Laboratory of Fire Protection Technology for Industrial and Public Building, Ministry of Emergency Management, Tianjin 300382, China; 3. Tianjin Key Laboratory of Fire Safety Technology, Tianjin 300382, China)
  • Received:2026-02-24 Revised:2026-03-10 Online:2026-06-15 Published:2026-06-15

摘要： 以全氟己酮与全氟庚酮为研究对象，在相同喷嘴结构和充装工况条件下，通过雾滴粒径测试及2A木垛火灭火试验，对两种灭火剂在局部应用场景下的雾化特性与灭火效能进行了系统对比。雾滴测试结果表明，在相同喷射压力下，全氟庚酮的特征粒径（D10、D50、D90、D99）显著大于全氟己酮，雾滴中大尺寸液滴的比例更高，射流结构更稳定；全氟己酮雾滴粒径整体较小，分布更集中，具有较好的弥散性。2A木垛火试验结果显示，在20 kg充装条件下，两种灭火剂均能成功灭火，但全氟庚酮的灭火时间更短，喷嘴最大压力及单位时间的流量更高，灭火响应更迅速。综合分析认为，雾滴粒径分布及射流动量特性对局部应用灭火效果具有重要影响。粒径较大的雾滴更有利于穿透火焰羽流及木垛结构，在燃烧核心区域形成局部高浓度灭火环境，从而提高灭火效率。研究结果为含氟酮类灭火剂在局部应用灭火系统中的工程设计与推广应用提供了试验依据。

关键词: 全氟己酮, 全氟庚酮, 局部应用, 雾滴粒径, 灭火性能

Abstract: This study comparatively investigates the droplet characteristics and fire extinguishing performance of perfluorohexanone and perfluoroheptanone under identical local application conditions. A droplet size measurement system and a 2A wood crib fire test were conducted using the same nozzle configuration and charging conditions. The droplet size results indicate that, under the same discharge pressure, perfluoroheptanone exhibits significantly larger characteristic diameters (D10, D50, D90 and D99) than perfluorohexanone, with a higher proportion of large droplets and a more stable jet structure. In contrast, perfluorohexanone produces smaller and more uniformly distributed droplets with better dispersion characteristics. The 2A wood crib fire tests demonstrate that both agents can successfully extinguish the fire under the same 20 kg charging condition; however, perfluoroheptanone achieves a shorter extinguishing time, higher peak nozzle pressure, and greater mass flow rate, resulting in a faster fire suppression response. Comprehensive analysis shows that droplet size distribution and jet momentum characteristics play a crucial role in local application fire suppression. Larger droplets with stronger momentum are more capable of penetrating flame plumes and wood crib structures, facilitating the formation of a locally high-concentration extinguishing zone in the combustion core region and thereby improving suppression efficiency. The results provide experimental support for the engineering application and design optimization of fluorinated ketone agents in local application fire extinguishing systems.

Key words: perfluorohexanone, perfluoroheptanone, local application, droplet size, fire extinguishing performance