After being sprayed, the water mist extinguishing agent becomes water mist, which instantly evaporates a large amount of heat in the fire field, rapidly reduces the temperature of the fire field, and inhibits heat radiation. The surfactant quickly forms a water film on the surface of the combustible, which isolates oxygen, cools and isolates double At the same time, it participates in fire extinguishing, so as to achieve the purpose of rapid fire extinguishing.
Dry powder fire extinguishing agent is a fine particle made by mixing the fire extinguishing base material with an appropriate amount of lubricant and a small amount of moisture-proof agent together and then using carbon dioxide as the jet power. Dry powder fire extinguishing agents are mostly installed in fire extinguishers and are mainly used to extinguish various non-water-soluble and water-soluble combustible and flammable liquid fires, natural gas and liquefied petroleum gas and other combustible gas fires or general live equipment fires. Phosphate dry powder fire extinguishing agents can also extinguish solid fires. The combination of phosphate dry powder and fluoroprotein foam or clean water foam can effectively extinguish fires in water-insoluble liquids.
Carbon dioxide fire extinguishing agent is a kind of fire extinguishing agent with more than one hundred years of history. It is cheap, easy to obtain and prepare, and it mainly relies on suffocation and partial cooling to extinguish fire. Carbon dioxide has a higher density, about 1.5 times that of air. Under normal pressure, liquid carbon dioxide will immediately vaporize, generally 1kg of liquid carbon dioxide can produce about 0.5 cubic meters of gas. When foam extinguishing agent manufacturers extinguish fires, carbon dioxide gas can exclude air and surround the surface of burning objects or distribute them in a more confined space, reducing the oxygen concentration around combustibles or in the protective space, resulting in suffocation and extinguishing. In addition, when carbon dioxide is ejected from the storage container, it will quickly vaporize from the liquid into a gas, and absorb part of the heat from the surroundings to play a cooling role.
Haloalkane fire extinguishing agent is also called fluorobromoalkane fire extinguishing agent. A fast vaporizing liquid fire extinguishing agent in which hydrogen in hydrocarbons is replaced by one or more halogen elements. Commonly used halide fire extinguishing agents are mostly methane and ethane halides, and the halogen atoms in the molecule are fluorine, chlorine, and bromine. The halide fire extinguishing agents have a destructive effect on the atmospheric ozone layer.
Foam fire extinguishing agent is an effective fire extinguishing agent for extinguishing flammable and combustible liquids. It mainly forms a condensed foam floating layer on the surface of the liquid to suffocate and cool. Foam fire extinguishing agents are divided into chemical foam, air foam, fluoroprotein foam, aqueous film-forming foam and alcohol-resistant foam. Foam fire extinguishing agent manufacturers stated that it has a wide range of applications.