The portable mechanical foam fire extinguisher produces a large amount of carbon dioxide and foam by mixing the acidic solution with the alkaline solution in the cylinder. These foams can adhere to combustible materials to form a covering layer that separates combustible materials from air, thus achieving the purpose of fire suppression. The fire extinguishing principle of foam fire extinguishers is mainly the principle of cooling asphyxiation, that is, the surface of the burning substance is cooled by the foam itself and the separated mixture, and at the same time, it is isolated from oxygen to achieve fire suppression.
Product characteristics
High efficiency: Foam can quickly cover the surface of the combustion, isolate the air, and effectively extinguish the fire.
Environmental protection: The foam emitted by the foam fire extinguisher contains a lot of water, does not produce pollutants, and is friendly to the environment.
Portability: Portable design for easy carrying and rapid deployment to the scene of a fire.
Usage method
Extract the fire extinguisher: carry the ring on the upper part of the cylinder, and quickly go to the fire. Be careful not to tilt the fire extinguisher too much, not to hold it horizontally or upside down.
Prepare to spray: about 10 meters from the ignition point, turn the cylinder upside down, hold the lifting ring with one hand, and hold the bottom ring with the other hand.
Aligned injection: the jet is aligned with the combustion material, for the flammable liquid fire, if it has a flowing combustion, the foam is sprayed from far to near, so that the foam is completely covered in the burning liquid surface; If burning in the container, the foam should be shot to the inner wall of the container, so that the foam flows along the inner wall and gradually covers the burning liquid level. For solid fire, the jet should be directed at the most intense burning.
Continuous spraying: When extinguishing the fire, with the shortening of the effective spraying distance, the user should gradually move closer to the burning area, and always spray the foam on the combustion until it is extinguished. When used, the fire extinguisher should always be kept upside down, otherwise it will interrupt the injection.
Storage and maintenance
Storage environment: should choose a dry, cool, ventilated and convenient place, not close to high temperature or may be exposed to the sun, in order to prevent carbonic acid decomposition and failure. In winter, anti-freezing measures should be taken to prevent freezing.
Daily maintenance: Dust should be wiped frequently and the nozzle should be dredged to keep it smooth.
