High-efficiency and environment-friendly foam fire extinguishing agent is suitable for fighting general Class B fires, such as oil, grease and other fires, and can also be applied to Class A fires, but cannot fight water-soluble flammable and combustible liquid fires of Class B fires, such as alcohol, ester, ether, ketone and other substance fires; Nor can live equipment and Class C and D fires be extinguished. The advantage of efficient and environmentally friendly foam fire extinguishing agent is clean and environmentally friendly: due to the use of clean water, adding environmentally friendly foam fire extinguishing agent, tasteless, dust-free and other residues, it will not cause secondary pollution to the environment, nor will it destroy the atmospheric ozone layer.

Maintenance of efficient and environmentally friendly foam fire extinguishing agent

(1) Store in a convenient, ventilated and dry place, and cannot be placed next to high-temperature stoves. Otherwise it is easy to fail.

(2) In the severe winter season, heat preservation measures should be taken to prevent freezing.

(3) Keep the nozzle unobstructed, often dredge.

The Use Principle of Efficient and Environmentally Friendly Foam Fire Extinguishing Agent

Fire extinguishing principle equation: Al2(SO4)36 nah co 3 = = 3 na 2 so 4 2Al(OH)36 CO2.

According to the nature that carbon dioxide can neither burn nor support combustion, various carbon dioxide fire extinguishers have been developed, including foam fire extinguishers, dry powder fire extinguishers and liquid carbon dioxide fire extinguishers. Here is a brief introduction to the principle and use of chemical foam fire extinguishers:

Efficient environment-friendly foam fire extinguishing agent has two containers, which are respectively filled with aluminum sulfate and sodium bicarbonate solution, and are respectively placed in the inner cylinder and the outer cylinder. The inner cylinder contains Al2(SO4)3 and the outer cylinder contains NaHCO3. The two solutions do not contact each other, so no chemical reaction occurs. (Don't knock down the foam fire extinguisher at ordinary times) When you need a foam fire extinguisher, turn the fire extinguisher upside down and mix the two solutions together, which will produce a lot of carbon dioxide gas:

In addition to these two reactants, the fire extinguisher also added some foaming agent. The foaming agent can make the foam fire extinguisher spray a large amount of carbon dioxide and foam when the switch is turned on, and can be attached to the burning material, so that the burning material is isolated from the air, the temperature is reduced, and the purpose of fire extinguishing is achieved. Because the sprayed foam contains a lot of water, it is not as good as carbon dioxide liquid fire extinguisher, which does not pollute the substance and leaves no trace after extinguishing the fire.

The proportion of foam currently used is between 0.1 and 9.9 per cent. However, except for type A foam (the mixing ratio is adjusted within a certain range), each foam has a specific mixing ratio, such as 1%, 3%, 6%, etc. The operator is unaware of the foam carried by the vehicle. For Class A foam fire extinguishing agent, the mixing ratio is usually adjusted within a certain range, such as 0.1-1%, 0.6-1%, etc. Choose different mixing ratios according to the type of fire extinguishing (Class A fire, Class water insoluble fire) or heat insulation protection, and need to be adjusted according to the fire extinguishing object and use conditions, rather than a fixed mixing ratio.