全氟己酮物理和化学作用灭火效果研究

doi:10.11949/0438-1157.20250746

化工学报 ›› 2025, Vol. 76 ›› Issue (12): 6761-6767.DOI: 10.11949/0438-1157.20250746

• 过程安全 • 上一篇

全氟己酮物理和化学作用灭火效果研究

梁天水¹(), 赵森¹, 张文彬², 钟委¹, 高晓蕾¹(), 傅慧明³, 王家帮³

^1.郑州大学力学与安全工程学院，河南郑州 450001
^2.应急管理部天津消防研究所，天津 300382
^3.河南省锅炉压力容器检验技术科学研究院，河南郑州 450001

收稿日期:2025-09-02 修回日期:2025-09-12 出版日期:2025-12-31 发布日期:2026-01-23
通讯作者: 高晓蕾
作者简介:梁天水（1981—），男，博士，教授，liangtsh@zzu.edu.cn
基金资助:
国家自然科学基金项目(52376130);河南省自然科学基金项目(242300421226);河南省基本科研业务费项目(2023KY22);天津市应用基础研究多元投入-城市消防项目(22JCZDJC00860);国家自然科学基金面上项目(52376137)

Research on fire extinguishing effect of perfluorohexanone through physical and chemical actions

Tianshui LIANG¹(), Sen ZHAO¹, Wenbin ZHANG², Wei ZHONG¹, Xiaolei GAO¹(), Huiming FU³, Jiabang WHANG³

^1.School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
^2.Tianjin Fire Research Institute, Ministry of Emergency Management, Tianjin 300382, China
^3.Henan Boiler and Pressure Vessel Inspection Technology and Science Institute, Zhengzhou 450001, Henan, China

Received:2025-09-02 Revised:2025-09-12 Online:2025-12-31 Published:2026-01-23
Contact: Xiaolei GAO

摘要/Abstract

摘要：

作为哈龙替代灭火剂，全氟己酮在火灾防治中备受关注。为定量评估其物理和化学灭火作用进而优化系统设计，通过对比PSR（完全搅拌反应器）模型结果与改进后杯式燃烧器实验数据定量评价了全氟己酮的物理和化学灭火作用。PSR模拟发现，全氟己酮在燃烧核心区的吸热量不足其潜热吸热量的20%时化学抑制占主导，处于其潜热吸热量的20%~30%时物理作用和化学作用相当，大于其潜热吸热量的30%后物理效应占主导且临界灭火浓度降低超过50%。杯型燃烧器实验对比了全氟己酮气体和粒径约为2 μm的全氟己酮液雾，结果表明全氟己酮液雾能够有效减弱其气体的助燃效应，使其对乙醇和正庚烷燃料的临界灭火浓度分别从 6.06% 降至 5.06%（降幅 16.5%）和从 4.51% 降至 3.79%（降幅 16.0%）。与PSR模拟结果对比，估算实验工况下全氟己酮在核心燃烧区的吸热量发挥了其潜热的5%，改变全氟己酮液滴粒径可以提高其物理作用。

关键词: 全氟己酮, 理化作用, 化学反应器, 灭火, 数值模拟

Abstract:

As a clean and efficient halon-alternative fire extinguishing agent, perfluorohexanone has garnered significant attention in fire prevention. To quantitatively evaluate its physicochemical fire suppression mechanisms for optimized system design, this study assessed the physical and chemical extinguishing effects by comparing perfectly stirred reactor (PSR) model results with enhanced cup-burner experimental data. PSR simulations revealed that chemical inhibition dominates when heat absorption in the combustion core zone is below 20% of its latent heat absorption capacity; physical and chemical effects become comparable between 20% and 30%; and physical effects prevail when exceeding 30% of latent heat absorption, reducing the critical extinguishing concentration by over 50%. Cup-burner tests comparing gaseous perfluorohexanone with its liquid mist (about 2 μm droplet size) demonstrated that the mist effectively mitigates the gas-phase combustion-promoting effect, lowering critical extinguishing concentrations for ethanol from 6.06% to 5.06% (16.5% reduction) and for n-heptane from 4.51% to 3.79% (16.0% reduction). Compared with the PSR simulation results, it is estimated that under experimental conditions, the heat absorption of perfluorohexanone in the core combustion zone utilized only 5% of its latent heat. Changing the perfluorohexanone droplet size can enhance its physical effect.

Key words: perfluorohexanone, physicochemical effects, chemical reactor, extinguish fire, numerical simulation

中图分类号:

TQ 028.8

梁天水, 赵森, 张文彬, 钟委, 高晓蕾, 傅慧明, 王家帮. 全氟己酮物理和化学作用灭火效果研究[J]. 化工学报, 2025, 76(12): 6761-6767.

Tianshui LIANG, Sen ZHAO, Wenbin ZHANG, Wei ZHONG, Xiaolei GAO, Huiming FU, Jiabang WHANG. Research on fire extinguishing effect of perfluorohexanone through physical and chemical actions[J]. CIESC Journal, 2025, 76(12): 6761-6767.

图/表 4

图1 实验装置示意图

Fig.1 Schematic diagram of experimental setup

图2 PSR反应器示意图

Fig.2 Schematic diagram of PSR reactor

图3 不同吸热量百分比下全氟己酮的最小灭火浓度和物理作用占比

Fig.3 Minimum extinguishing concentration of perfluorohexanone and proportion of physical contribution under different heat absorption ratios

图4 全氟己酮液雾及气体作用下乙醇和正庚烷火焰高度和宽度

Fig.4 Flame height and width of ethanol and n-heptane under action of perfluorohexane liquid mist and gas

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全氟己酮物理和化学作用灭火效果研究

Research on fire extinguishing effect of perfluorohexanone through physical and chemical actions

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