水与K_2CO_3的协同灭火作用  

Synergistic Effect of Fire Extinguishing by Water and K_2CO_3

作　　者：刘皓[1] 张天巍[1,2] 夏登友 郭子东[1] Liu Hao;Zhang Tianwei;Xia Dengyou;Guo Zidong(Department of Fire Commanding,The Chinese People’s Armed Police Forces Academy,Langfang 065000,China;State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]中国人民武装警察部队学院消防指挥系,廊坊065000 [2]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《燃烧科学与技术》2018年第1期9-14,共6页Journal of Combustion Science and Technology

基　　金：河北省重点研发计划自筹资金资助项目(15215605);灭火救援技术公安部重点实验室开放课题资助项目(kf;201604)

摘　　要：实验研究了惰性灭火介质水与化学灭火介质的协同灭火作用.通过测定纯水、含K_2CO_3添加剂细水雾及K_2CO_3干粉的最小灭火浓度,分析了水与K_2CO_3的结合对两者单独使用时灭火有效性的影响.结果表明:含K_2CO_3添加剂细水雾可以分别提升纯水与K_2CO_3干粉的灭火效能,并且灭火效能随着溶液中K_2CO_3含量的增加而增强.水与K_2CO_3在火焰温度下发挥协同灭火作用的实质是水蒸气的存在对K_2CO_3有一定的活化作用,使其更容易在平衡产物中生成大量的灭火活性物质KOH.The work experimentally studied the synergistic effect of fire extinguishing by inert extinguishing medium water and chemical fire extinguishing media K2CO3.By measuring the minimum extinguishing concentration(MEC)of pure water mist,water mist with K2CO3 additive and K2CO3 dry powder,the effect of the combination of water and K2CO3 on the effectiveness of fire suppression by water and K2CO3 used individually was analyzed.The results show that water mist containing K2CO3 can enhance the fire extinguishing efficiency of pure water and K2CO3 dry powder,respectively,and the fire extinguishing efficiency was enhanced with the increase of K2CO3 content in the solution.The essence of synergistic role of water and K2CO3 under flame temperature lies in the existence of water vapor,which could activate K2CO3,making it easier to generate a large amount of gaseous KOH,an active substance for fire extinguishing,in the equilibrium products.

关 键 词：细水雾 K2CO3 灭火 协同作用 杯式燃烧器 

分 类 号：X932[环境科学与工程—安全科学]