新型细水雾添加剂的制备及其灭火性能评价
1. 上海海事大学海洋环境与工程学院,上海 201306;
2. 中国科学技术大学火灾科学国家重点实验室,合肥 230026
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摘要
在研究传统细水雾添加剂的基础上,取长补短,采用物理工艺制备出新型复合添加剂,针对典型火源(酒精池火、煤油池火与木垛火),改变添加剂浓度开展了一系列灭火实验。结果表明:新型复合添加剂显著增强了细水雾的灭火性能,可提高灭火时间5~8倍。随着细水雾中添加剂含量的不断增加,油池火的灭火时间呈现出先快速下降,而后略微增长的趋势;而木垛火的灭火时间表现为平缓下降,并趋于稳定。含新型复合添加剂的细水雾灭火是物理化学复合作用机制,但主导灭火机理是燃料表面的冷却与隔离作用。
参考文献
[ 1 ] 刘江虹.细水雾抑制熄灭固体火焰的模拟实验研究[D].合肥:中国科学技术大学,2002
[ 2 ] Grant G, Brenton J, Drysdale D.Fire suppression by water sprays [ J] .Progress in Energy and Combustion Science,2000 , 26 :79 - 130 链接1
[ 3 ] Liu Zhigang, Andrew K K.Review of water mist fire suppression technology: part one -fundamental studies [ J ] .Journal of Fire Protection Engineering,2000 ,10 :32 -50
[ 4 ] Liu Zhigang, Andrew K K.Review of water mist fire suppression technology: part two -application studies [ J ] .Journal of Fire Protection Engineering,2001 ,11 :16 -43 链接1
[ 5 ] Gerard G Back, Craig L Beyler, Rich Hansen.The capabilities and limitations of total flooding, water mist fire suppression sys- tems in machinery space applications[ J] .Fire Technology,2000 , 36 :8 -23 链接1
[ 6 ] Richard G G.FY2002 Annual Report: Next Generation Fire Sup- pression Technology Program[ R] .National Institute of Standards and Technology, NGP TN -1451 , 2002
[ 7 ] Finnerty A E.Water -based fire -extinguishing agents[ A] .Pro- ceedings of Halon Option Technical Working Conference [ C] .Al- buquerque, NM, 1995.461 -471
[ 8 ] Shilling H, Dlugogorski B Z, Kennedy E M.Extinction of diffu- sion flames by ultrafine water mist doped with metal chlorides [ A] .Proc 6 th Australasian Heat and Mass Transfer Conf Sydney [ C] .New York,1998
[ 9 ] Edwards M, Watkins S, Glockling J.Low pressure water mist,fine water spray, water source and additives: evaluation for the royal navy[ A] .Proceedings of the 8 th International Fire Science and Engineering Conference [ C ] . Interflam ’ 99 , Edinburgh, Scot- land, 1999 ,1 :639 -650
[10] Kim A K.Fire suppression performance of water mist systems with Additives[ A] .Proceedings of Safety Science and Technolo- gy International Symposium[ C] .Beijing, 2000.561 -566
[11] Yang Jiancheng.Technical Support for the Study of Droplet Inter- actions with Hot Surfaces -Final Technical Report [ R] .Build- ing and Fire Research Laboratory.National Institute of Standards and Technology, 2003 :102 -115
[12] NFPA 18.Standard on Water Additives for Fire Control and Va- por Mitigation[ S] .
[13] Friedman R.Principles of Fire Protection Chemistry, 2 nd Edition [ M] .Quincy, MA: National Fire Protection Association, 1989
[14] Cong Beihua, Mao Tao, Liao Guangxuan.Experimental investi- gation on fire suppression effectiveness for pool fires by water mist containing NaCl additive [ J ] .Journal of Thermal Science and Technology, 2004 ,3 ( 1 ) : 65 -70
[15] 郑忠,胡纪华.表面活性剂的物理化学原理[M]:广州:华南理工大学出版社,1995