氢氟烃洁净气体灭火剂的灭火性能及机理研究进展  

Research progress on the performance and mechanism of clean hydro-fluoro-carbonic gas fire extinguishing agents

作　　者：李勤华[1] 谈玲华[1,2,3] 冒爱琴[1] 高飞[1] 潘仁明[1] 

机构地区：[1]南京理工大学化工学院,南京210094 [2]南京理工大学国家特种超细粉体工程技术研究中心,南京210094 [3]南京工程学院材料工程学院,南京211167

出　　处：《安全与环境学报》2010年第2期138-143,共6页Journal of Safety and Environment

基　　金：国家"十一五"科技支撑计划项目(2008BAK40B02);江苏省2009年度普通高校研究生科研创新计划项目(CX09B_095Z)

摘　　要：氢氟烃(HFCs)灭火剂已成为目前最常用的洁净气体灭火剂。介绍了氢氟烃洁净气体灭火剂的灭火性能和使用特点,阐述了其物理灭火机理,从氢氟烃气体热分解和与火焰作用研究等方面综述了氢氟烃洁净气体灭火剂化学灭火机理研究进展,并展望了氢氟烃洁净气体灭火剂的研究趋势。This paper intends to make a general review over the ad- vances of the fire extinguishing performance and application features of HFC （Hydre-Fluoro-Carbenic） gas fire extinguishing agents. For our purpose, we have introduced mainly the HFC fire-extinguishing agent from the physical as well as chemical point of view. In the meantime, we have also studied the working principle and their physical fire extinguishing performance, including cooling and smothering. As to their chemical features, it can be said that it is the high temperatures of production and reaction with H, O and OH radicals that mainly contribute to the fluorinated radicals achieved. Mention has been given to their chemical mechanism mainly based on the discussion of the thermal decomposition of hydrofluorocarbons and the reaction of hydrofluoroearbons with the flame. In addition, we have also made a wide review over the trends of the developments of the clean agents..The process can be traced to the making and application of Halon fire extinguishing agents. Montreal protocol, which was signed by the United Nations Environment Program （UNEP） in 1987, requires that halon fire extinguishing agents be phased out, for it tends to reduce and even destroy the ozone layer in the atmosphere. Hence comes the need to develop and produce the clean HFC fire extinguishing agents, which are environment-friendly and do not bring any harm to the atmospheric ozone layer but enjoy similar physical properties with halon. Furthermore, they possess the properties of high firefighting efficiency, reliable performance, with no residue after finishing their duty. Needless to say, relatively reasonable price and easy maintenance also contribute to their preference coming from their users.

关 键 词：安全工程 洁净气体灭火剂 氢氟烃 灭火性能 灭火机理 化学灭火 

分 类 号：X932[环境科学与工程—安全科学]