扑灭酒精及其混合物的火焰

V. Balanyuk, N. Kozyar, Yu. Kopystynskyi, A. Kravchenko
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引用次数: 0

摘要

为了提高灭火效率和灭火速度,提出了采用灭火剂气雾剂进行灭火。与气体、泡沫和水灭火相比,喷雾灭火操作更舒适,价格更便宜。至于痰液浓度,很明显,所有这些物质的痰液浓度值都不同。痰液浓度最低的是用于灭火的气溶胶,由于其表面发达,可以有效地中断连锁反应并发挥爆炸作用。这项工作证实,从效率、成本、速度和酒精-空气混合物爆炸耗尽的可能性的角度来看,用体积灭火剂猝灭酒精是令人感兴趣的,创造新的有效的气体-气溶胶混合物是一个迫切需要解决的问题。研究得出以下主要结论:目前极性液体灭火工艺尚不完善,在几乎所有情况下,极性燃料排放源都存在质量损失。此外,发泡剂的用量远高于醇类所需的用量,这类发泡剂的成本比通用发泡剂的成本高出数倍。此外,体积作用的灭火剂灭火比泡沫灭火更有效,因为体积作用的灭火剂可以扑灭三维火灾。为了进一步提高灭火效率,减少灭火过程中的液体损失,有必要进一步研究气体-气溶胶混合物的各种组合形式。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
EXTINGUISHING FIRES OF ALCOHOLS AND THEIR MIXTURES
In order to increase the efficiency and the rate of extinction, it was proposed to use extinguishant aerosols to extinguish. Extinguishant aerosols are more comfortable in operation and cheap compared to gas, foam and water fire extinguishing. As for the phlegmative concentrations, it is apparent that all of these substances have different values ​​of phlegmative concentration. The lowest levels of phlegmatic concentration are for extinguishing aerosols, which, due to the developed surface, effectively interrupt chain reactions and perform explosive action. The work substantiates that quenching of alcohols with volumetric extinguishants is of interest from the standpoint of efficiency, cost, speed and the possibility of explosive depletion of alcohol-air mixtures, and the creation of new effective gas-aerosol mixtures is an urgent issue to be addressed. The following main results were obtained in the work, namely, the process of extinguishing polar liquids is not perfect at present and in almost all cases, the polar fuel-emitting native suffers quality losses. In addition, the amount of foaming agent is much higher than the amount required for alcohols, and the cost of this type of foaming agent is several times higher than the cost of a general purpose foaming agent. In addition, extinguishing with extinguishants of volumetric action is much more effective than foam quenching as the extinguishing agent of the volume action extinguishes 3 D fires. For further increase of extinguishing efficiency and reduction of liquid losses during extinguishing, it is relevant to further study gas-aerosol mixtures in their various combinations.
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