Experimental study on fire extinguishing with a newly prepared multi-component compressed air foam  

作　　者：WANG XiShi LIAO YaoJian LIN Lin 

机构地区：[1]State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China

出　　处：《Chinese Science Bulletin》2009年第3期492-496,共5页

基　　金：Supported by the Natural Science Foundation of China (Grant No. 50774072);National Key Technology R&D Program (No. 2006BAK06B07);Program for New Century Excellent Talents in University (No. NECT-07-0794)

摘　　要：A multi-component compressed air foam system (MCAFS) was developed with newly prepared multi-component foaming agents. Extinguishing of wood crib and oil pool fires was performed under different conditions, such as foam concentration, mixing chamber forepart structure and working pressure. It was found that the foam concentration had sufficient effects on fire extinguishing efficiency, and an optimized concentration value exists. For instance, for diesel oil pool fires, this value is about 2.2% while it is about 4.0% for wood crib fires. The results also show that the system with a coaxial mixing chamber has greater efficiency than a T-shape. The effects of working pressure on fire extin- guishing are evident in experiments, i.e., the higher the working pressure is, the more readily the fire is extinguished.A multi-component compressed air foam system （MCAFS） was developed with newly prepared multi-component foaming agents. Extinguishing of wood crib and oil pool fires was performed under different conditions, such as foam concentration, mixing chamber forepart structure and working pressure. It was found that the foam concentration had sufficient effects on fire extinguishing efficiency, and an optimized concentration value exists. For instance, for diesel oil pool fires, this value is about 2.2% while it is about 4.0% for wood crib fires. The results also show that the system with a coaxial mixing chamber has greater efficiency than a T-shape. The effects of working pressure on fire extin- guishing are evident in experiments, i.e., the higher the working pressure is, the more readily the fire is extinguished.

关 键 词：木材失火 油库失火 灭火方式 泡沫灭火器 

分 类 号：TU998.1[建筑科学—市政工程]