A new high-efficiency and general-purpose composite foam fire extinguishing agent

Abstract

The invention relates to the technical field of fire control and extinguishment and specifically relates to a novel high-efficiency general type compound foam fire extinguishing agent. The novel high-efficiency general type compound foam fire extinguishing agent is prepared from the preparation raw materials in parts by weight: 20 to 30 parts of a foaming agent, 1 to 5 parts of a stabilizer, 20 to30 parts of a thickening agent, 0.5 to 3 parts of a fluorocarbon surface active agent, 2 to 8 parts of urea, 10 to 20 parts of an antifreeze agent, 2 to 8 parts of a cosolvent and 0.5 to 5 parts of an aid.

Description

technical field [0001] The invention relates to the technical field of fire fighting and fire extinguishing, in particular to a novel high-efficiency and general-purpose composite foam fire extinguishing agent. Background technique [0002] In today's society, fire is a common disaster, which poses a huge threat to people's lives and properties. More and more fire extinguishing products have been continuously developed. Common fire extinguishing agents include water fire extinguishing agent, dry powder fire extinguishing agent, foam fire extinguishing agent and other products. Among them, foam fire extinguishing agent is mainly used in laboratories, chemical companies, oil fields, oil depots, refineries and other occasions. Because the specific gravity of foam is smaller than that of general flammable liquids, it floats on the surface of flammable liquids to form a foam layer. Relying on the covering effect of the foam layer to isolate the surface of the burning material fr...

AI Technical Summary

Problems solved by technology

The foam fire extinguishing agent of above-mentioned kind all is designed for different fire environments, factors such as different fire causes, and it can play an effective role and the type of the fire that can put out is single, and the fire in real life is often caused by many Due to these factors, firefighters may not always be able to accurately judge the cause of the fire and take targeted measures when they predict the cause of the fire, and even if their judgment is correct, they may need to use multiple fire extinguishing agents Only by using it together can we prevent the further growth of the fire from multiple angles and different causes. The fire extinguishing performance of a single foam fire extinguishing agent may not meet the firefighting needs of firefighters

In addition, the existing foam fire extinguishing agents have insufficient foaming ability, insufficient foam concentration during the fire extinguishing process, and insufficient foam surface area, resulting in weak foam adhesion, low durability, radiation resistance, heat insulation, and wettability. Waiting is not good enough to effectively control the re-ignition of solids, which increases the difficulty of operation and results in low efficiency of on-site fire extinguishing

Moreover, since many existing anti-alcohol foam fire extinguishing agents are realized by introducing polysaccharide-containing water-soluble polymers, wherein the polysaccharide-type water-soluble polymers come from the mixed solution produced when they contact with polar solvent flammable liquids, However, the fire extinguishing agent obtained by this method has a strong dependence on factors such as temperature and shear force. In many cases, when firefighters use this type of fire extinguishing agent, they will find that the fire extinguishing agent becomes thick and viscous, which will cause Blockage and proportioning problems, and the stability of this type of fire extinguishing agent is poor, especially at higher or lower temperatures. It is easy to flocculate or precipitate under extreme conditions, and it is not easy to store for a long time

Images