一种新型森林灭火技术原理的试验探索  

EXPERIMENTAL STUDY Of A NEW TECHNIQUE ABOUT FIGHTING FOREST FIRE

作　　者：常熹钰[1] 周勇为[1] 张艳[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《林业科学》2002年第1期168-172,共5页Scientia Silvae Sinicae

基　　金：国家自然科学基金资助 项目编号 3 9770 62 3 0。

摘　　要：Using shock tube and coherent experimental technique, the sweeping process of shock wave in ground, forest belt and flame field is photographed, the sudden extinguish time of flame and the overpressure of shock wave was measured. The research showed that it was obvious for shock wave extinguishing forest fire, the high dynamic pressure induced by shock wave may be the immediate cause of extinguishing flame. Moreover the overpressure, negative pressure and temperature rise of air causing by shock wave would make the combustible pyrolysis gas of forest tree mix with atmosphere then ignite and burn out, which probably is an important effect in restraining forest fire.Using shock tube and coherent experimental technique, the sweeping process of shock wave in ground, forest belt and flame field is photographed, the sudden extinguish time of flame and the overpressure of shock wave was measured. The research showed that it was obvious for shock wave extinguishing forest fire, the high dynamic pressure induced by shock wave may be the immediate cause of extinguishing flame. Moreover the overpressure, negative pressure and temperature rise of air causing by shock wave would make the combustible pyrolysis gas of forest tree mix with atmosphere then ignite and burn out, which probably is an important effect in restraining forest fire.

关 键 词：激波 森林火灾 防火技术 森林灭火技术 技术原理 

分 类 号：S762.3[农业科学—森林保护学]