Solvent-resistant water-film-forming fire-fighting foam fire extinguishing agent is mainly used to extinguish fires caused by combustible and flammable liquids. It is currently widely used in underground construction projects, tunnels, gas stations, oil depots, docks, power plants, car depots, aircraft depots, and mine shafts And other places. There are several types of anti-solvent aqueous film-forming fire-fighting foam extinguishing agents on the market, which are mainly divided into chemical foam, air foam, fluoroprotein foam, aqueous film-forming foam, and anti-solvent foam. When you buy, you must choose according to your own needs and refer to the characteristics of different types of anti-solvent aqueous film-forming fire foam extinguishing agents.
Chemical foam fire extinguishing agents Chemical foam fire extinguishing agents commonly used are mainly acidic and alkaline salts mixed with a small amount of foaming agent, a small amount of stabilizers, etc., and the interaction generated foam. Foam extinguishing agents can be used to extinguish fires caused by chemicals and electrical equipment that are resistant to water and acids.
Air foam fire extinguishing agent Air foam is ordinary protein foam foam. It is a film-like foam group formed by mixing a certain proportion of foam liquid, water and air with each other through mechanical action. It is mainly used to extinguish general non-water-soluble flammable and combustible liquid fires. It can also be used to extinguish general fires of combustible solid substances. However, at high temperatures, the bubbles generated by air foam extinguishing agents will be quickly destroyed due to thermal expansion, so it is not suitable to use at high temperatures.
Anti-solvent foam fire extinguishing agent is added with organic acid metal complex salt to protein hydrolysate to make protein-type anti-solubility foam liquid. Anti-solvent foam fire extinguishing agent is produced with new high-tech achievements. Because this kind of fire extinguishing agent belongs to gel type synthetic foam, it has good thixotropic properties, and has the advantages of not affecting the infusion pipeline, large supply strength, fast fire extinguishing, stable storage, low corrosion, etc. It is mainly used to fight alcohol, Fires of flammable polar solvents such as esters, ethers, ketones, aldehydes, amines, and organic acids can also be used to extinguish oil fires.
Fluoroprotein foam fire extinguishing agent When ordinary protein foam passes through the oil layer, it cannot resist oil pollution. After rising to the oil level, the foam itself contains enough oil to cause it to burn, resulting in the destruction of the foam. Fluorocarbon surfactant is added to the air foam liquid to form a fluoroprotein foam. Fluoroprotein foam has good fluidity, and it is not easy to defoam in the case of oil pollution. It can be used in the form of submerged spray, and it is the mainstream fire extinguishing agent for protecting large oil tanks.
Aqueous film-forming foam fire extinguishing agent Aqueous film-forming foam fire extinguishing agent, also known as "light water" foam fire extinguishing agent Performance additives (foam stabilizer, antifreeze, co-solvent and thickener, etc.) and water composition. The foamed fluorosurfactant aqueous solution forms a thin film on the surface of the oil and floats on it. After the fire is extinguished, steam generation is prevented and re-ignition is prevented.