What are the advantages of water-forming foam fire extinguishing agent?

We first understand the mechanism of fire extinguishing agent into water film. Aqueous foam-forming foam extinguishing agents are capable of foaming in an aqueous solution and their aqueous solution is lighter than water so that they float on the surface of the liquid fuel and hence are referred to as “light water foam extinguishing agents.” In addition to having the general effect of a foam extinguishing agent, And when it is flowing on the surface of the combustion liquid, it precipitates the liquid to cool the surface of the fuel liquid and forms a water film on the combustion liquid surface to co-seal the surface of the fuel liquid with the foam layer to isolate the air and form a heat insulation barrier to absorb the heat Liquid vaporizes and dilutes the oxygen content of the air on the surface of the fuel liquid and smokes the combustion liquid to prevent further heating, vaporization and combustion of the fuel liquid. The fundamental difference between it and other fire extinguishing agents is that “water-forming” foam fire extinguishing agents have a double-layer fire extinguishing effect of foam and water film. Water-forming foam fire extinguishing agent fire extinguishing advantages: high fire-fighting efficiency, short time, rapid fire extinguishing, fire extinguishing part of the rapid formation of a layer of film, blocking the source of oxygen supply, and to prevent repeated fire.

firefighting powder

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Post time: Jan-13-2018
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