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Portable dry powder fire extinguisher fighting

Release time:2014-03-12 viewed:0

Portable dry powder fire extinguisher fighting range and method of use

At the beginning of the fire dry powder fire extinguisher is applicable to flammable, flammable liquids, gases and charged equipment; dry powder fire extinguishers in addition to the above categories of fire, but also at the beginning of the fire fighting of solid substances.

Portable fire extinguisher, shoulder or fast to the scene, at a distance of about 5 meters down the point of combustion, fire extinguisher. As in the outdoor, should be chosen in the upwind direction of injection. The use of dry powder fire extinguisher if external storage type, the operator should be a hand gun, the other hand raised gas bottle opening ring.

If you open the gas bottle is hand wheel type, the anti clockwise rotation to open, and is screwed to the highest position, then pick up the fire extinguisher. When the powder after spraying, rapid alignment of the root of the flame. The use of dry powder fire extinguisher if built-in gas cylinders or pressure storage type, the operator should first be open to pin on the front end, and then hold the spray hose nozzle, on the other hand will pressure the pressure, open fire extinguishers. A jet hose fire extinguishers or fire extinguisher storage when in use, the hand should always put down pressure, can't let go, otherwise it will interrupt injection. Dry powder fire extinguisher fighting combustible, flammable liquid fire, fire department fire to deal with the subject, if the liquid fire fighting is flowing combustion, align the flame root from near and far, and about fire, and the flames are put out. If the flammable liquid combustion in the container, the user response to the quasi flame sloshing around the fire, so that the jet of powder flow across the opening of the container surface; when the flame is out of the container, the user should continue to spray, until the flames are put out. In fighting the container flammable liquid fires, should pay attention to can not be directly aligned liquid jet nozzle, to prevent the impact of the jet to flammable liquid spills and expand the fire, causing fire fighting difficult. If the flammable liquid combustion time is too long in a metal container, the container wall temperature has been higher than the autoignition fighting flammable liquids, this extremely easy to cause the phenomenon and reignition after the fire, and if the foam fire extinguisher combined, then fire extinguishing effect is better. The use of dry powder fire extinguisher extinguishing solid combustible fire, deal with the quasi burning most violent ejection, and upper and lower, left and right. If conditions permit, the user can put a fire extinguisher spray combustion walking along the four surrounding, the dry powder fire extinguishing agent is uniformly sprayed on the surface of burning material, until the flames are put out.

 

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