What kinds of portable fire extinguishers are commonly used in fire protection in my country

Portable fire extinguishers can put out fires or control fires in emergencies. In order to avoid accidents, fire agencies usually require everyone to be equipped with a certain number of fire extinguishers in places with high traffic. In addition, we can also prepare one or two fire extinguishers at home or in the car Spare. Like in the car, we can choose a smaller portable fire extinguisher, which can be placed on the trunk and the driver's seat.

Portable fire extinguishers can be divided into many types. According to the power source of driving the fire extinguishing agent, they can be divided into: gas storage cylinder type, pressure storage type, and chemical reaction type; according to their moving methods, they can be divided into: portable type and cart type; The fire extinguishing agent can be divided into: foam, dry powder, haloalkane, carbon 2 oxide, water, etc.

So what kinds of portable fire extinguishers are there?

1.2 Carbon oxide fire extinguisher (due to the evaporation of liquid 2 carbon oxide, the endothermic effect condenses into a solid snowflake shape), also known as dry ice.

2. Dry powder fire extinguisher (with high fire extinguishing effect, fast speed, non-toxic, non-conductive, long-term storage without deterioration, low price)

3.1211 fire extinguisher (professional name 2 fluoro-chloro-bromomethane fire extinguisher)

4. Foam fire extinguisher (with certain conductivity, it can put out oil or other flammable liquid fires. It cannot put out fires that avoid water and charged objects) Portable light water foam fire extinguisher is a new type of high-efficiency fire extinguisher, suitable for extinguishing solid, Oil, especially the initial fire of petroleum products. But not suitable for extinguishing water-soluble flammable, flammable liquid, electrical and light metal fires.

Light water foam fire extinguisher is a fire extinguisher stored together with light water foam fire extinguisher (ie, water film-forming foam fire extinguisher) and compressed gas (hydrogen or compressed air), which drives the fire extinguishing agent to be ejected by the pressure of the compressed gas to extinguish the fire.

Aqueous film-forming foam fire extinguishers are composed of fluorocarbon surfactants and other additives. Because fluorocarbon surfactants sharply reduce the surface tension of the aqueous solution, a water film can be formed on the surface of the oil, which can effectively inhibit the evaporation of fuel, accelerate the flow of foam, and quickly extinguish the fire. fire.