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《中国工程科学》 >> 2010年 第12卷 第9期

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

资助项目 :国家自然科学基金面上项目(50676092);上海海事大学校基金项目资助(20100076) 收稿日期: 2009-04-20 发布日期: 2010-09-13 10:41:15.000

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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。

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