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khco (3) 粉体与典型气体灭火剂的协同灭火.pdf

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khco (3) 粉体与典型气体灭火剂的协同灭火.pdf

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文档介绍:年 第 卷 第 期 科 学 技 术 与 工 程
2022 22 11     H OH Ar
增加而增加ꎬ具有较为显著的协同效果ꎮ
关键词 杯式燃烧器ꎻ 协同ꎻ 自由基浓度ꎻ 软件
  CHEMKIN
中图法分类号 文献标志码
  X932ꎻ          A
Coordinated Extinguishing of KHCO3 Powder with Typical
Gas Extinguishing Agent
LIANG Tian ̄shuiꎬ ZHANG Jun ̄geꎬ LIN Zheng ̄xiongꎬ MAO Si ̄yuanꎬ ZHANG Hua ̄jie
(School of Mechanics and Safety Engineeringꎬ Zhengzhou Universityꎬ Zhengzhou 450001ꎬ China)
Abstract
[ ]  In order to improve powder fire extinguishing technology and explore the cooperative fire extinguishing mechanism be ̄
tween inert gas and powderꎬ the alkali metal compound KHCO3 ultra ̄fine powder was selected as the research objectꎬ and the gas ̄solid
cooperative fire extinguishing experiment was carried out based on the cup burner device. The experimental results show as follows. The

minimum extinguishing concentration of KHCO3 ultra ̄fine powder is 7􀆰 74 g / m . Under the action of CO2 ꎬ N2 ꎬ He and Arꎬ the fire ̄ex ̄
tinguishing efficiency of KH