EXTINGUISHING FIRES OF ALCOHOLS AND THEIR MIXTURES

Abstract

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.