Environment-friendly water-based fire extinguishing agent for fire protection

Abstract

The invention belongs to the technical field of fire-fighting foam, and discloses a fire-fighting environment-friendly water-based fire extinguishing agent. The fire extinguishing agent is prepared from the following raw materials in percentage by weight: 15 to 40 percent of fatty acid amide, 5 to 10 percent of phosphate, 5 to 10 percent of foaming agent, 3 to 5 percent of fatty alcohol, 1 to 3 percent of pH regulator, 0.5 to 0.8 percent of preservative, 0.2 to 0.5 percent of stabilizer, 10 to 15 percent of organic solvent and the balance of water. According to the invention, fatty acid amide is used as a main surfactant and cooperates with other assistants, so the prepared fire extinguishing agent has the advantages of low interfacial tension, high wettability and high foaming and fire extinguishing speed; phosphate is added into the fire extinguishing agent, so that the flame retardance can be improved, the wettability of the system is improved, and the foaming property and the fire extinguishing property of the system are promoted to a certain extent; the addition of the fatty alcohol can increase the emulsifying property of the system, reduce the interfacial tension of oil and water and reduce the height of an emulsifying layer of mixed oil and water; the emulsifying effect is promoted by controlling the addition amount of the fatty alcohol, but the height of an oil-water mixing layer is not increased, and fire extinguishment and field treatment after fire extinguishment are facilitated.

Description

technical field [0001] The invention belongs to the technical field of fire fighting and relates to an environment-friendly water-based fire extinguishing agent for fire fighting. Background technique [0002] With the rapid development of my country's social economy, petrochemical fire accidents have gradually become more frequent in recent years. Hydrocarbon liquids such as crude oil, gasoline, and diesel oil are flammable and explosive, with high combustion calorific value, fast fire spread, and large storage capacity. Once leaked and flow fire occurs, it will cause great damage to fuel storage tanks and fire-fighting facilities . After the fire of these hydrocarbon liquid storage tanks occurs, once a large area of ​​flowing fire is formed, it will be extremely difficult to extinguish the fire, and its strong thermal radiation will also cause the fire to spread rapidly. [0003] For large-scale flammable liquid flowing fires, the method of blocking first and then applyi...

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Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide an environmentally friendly water-based fire extinguishing agent for fire protection, which has chlorine-free, fluorine-free, low interfacial tension, excellent wettability and foaming properties, and can cooperate with fire extinguishing. , to solve the problems of slow extinguishing speed, low cooling effect and difficult to clean up the scene after fire extinguishing in the prior art

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