Foam extinguisher can not be used for fighting what fire?
MP type portable foam fire extinguisher is mainly composed of a tube body and a cover, bottle and nozzle etc.. The cylinder body is arranged in an alkaline solution, Pingdan acid solution, with the cap on the bottle, to prevent evaporation due to shock or acidic solution and alkaline solution and mixed with. The use of fire extinguishers, a hand ring, a hand map, a fire extinguisher upside down, gently shake, spray foam, fire.
The flame extinguisher is chemically mixed with an alkaline solution through the acid solution in the cylinder, and the foam is extruded out of the nozzle and ejected for fire extinguishing. In addition to being used for fighting general solid matter fires, it can also fight the fire of flammable liquids such as oils, but it can not put out the fire of live equipment and organic solvents such as alcohols, ketones, esters and ethers. Foam extinguishers are MP type, MPZ type portable hand-held zhouche type and MPT type trolley type three types. Here, take MP portable as an example to explain its usage and precautions.
Fire extinguishing principle: when extinguishing, it can spray out a large amount of carbon dioxide and foam, they can adhere to the fuel, insulate the fuel from the air, and achieve the purpose of extinguishing the fireScope of application: it can be used to extinguish fire caused by burning wood, cotton and so on. Foam extinguisher
1, can not save appliances fire;2, can not fight, avoid water products fire;3, valuables, instrument fire.Because of containing ninety-seven percent bubble water, therefore can not save the electrical fire (water conductivity) and avoid water (hydrophobic material fire and can even touch the goods and valuables, burning), fire instrument (leave stains).
