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What's Aerosol hearth extinguishing What on earth is aerosol fireplace extinguisher? Aerosol fire extinguishing technologies is a different type of hearth extinguishing technologies formulated on The idea of armed forces pyrotechnics.

The initial technology of aerosol fire extinguishing technologies was born in our nation, also called smoke fire extinguishing technologies, which started from the early nineteen sixties. It had been finished by scientific scientists from your Tianjin Fire Analysis Institute of Community Stability, who independently created an automatic smoke fire extinguishing procedure, which is mainly used to extinguish fires in school A, B, and C liquid storage tanks. In the early nineteen eighties, Using the emergence of environmental security complications of “halon fireplace extinguishing agent”, obtaining options to halon became an important exploration topic. At the end of the eighties, Russian experts 1st succeeded in studying aerosol fire extinguishing engineering that can extinguish fires inside a submerged fashion, which opened up a new way for halon substitution analysis. Subsequently, aerosol fireplace extinguishing technologies has attracted the eye with the Intercontinental Local community, and nations around the world which include China, The usa, Australia, Malaysia together with other international locations have also begun research on new aerosol fireplace extinguishing technologies. Generally speaking, aerosol is really a steady point out process formed by the dispersion of great stable or liquid particles in a gas. Professionally, it refers to some colloidal technique that utilizes fuel (normally air) given that the dispersion medium and solid or liquid particles as the dispersant.Widespread aerosols in character—clouds, smoke, fog, and many others.The dimensions with the particles in aerosols is mostly within the buy of 10-five to ten-oneμm, which has gasoline fluidity and will diffuse around hurdles. The medicament during the aerosol fire suppression procedure unit is solid, as well as element emitted by the medicament through the oxidation-reduction response is aerosol. The main generation of aerosol fire extinguishing technologies-smoke fireplace extinguishing technological know-how. K-style aerosol fire extinguisher, also known as potassium salt fireplace extinguishing technological know-how, is the next phase of the event of aerosol fire extinguishing technologies, which started in the previous Soviet Union during the mid-sixties. Our place started late During this regard, beginning inside the early 1990s. In such a aerosol generating agent, potassium nitrate is principally utilised as the main oxidant. Its sprays have superior fireplace extinguishing effectiveness, but as they contain a large amount of potassium ions, Simple to soak up humidity, forming a yellow and sticky potent alkaline conductive liquid movie, this substance is extremely harming to electronic tools, so K-style aerosol automated fire extinguishing machine can not be Utilized in electronic gear, precision instruments and cultural relics Archive put. At this time, the use out there is slowly lowering. The third-technology aerosol (S variety) is especially product of strontium salt as the principle oxidant. In contrast to the next-era potassium salt (K-type) aerosol, strontium ions usually do not take in moisture, don't type a conductive Answer, and will likely not cause damage to electrical equipment. In 2001, China Cellular Communications Company picked the strontium salt aerosol (S-type aerosol computerized hearth extinguishing unit) made by the organization just after strict inspection and verification to guard its communication base stations as well as other sites Geared up with advanced electronic products. At the moment, strontium salt aerosol merchandise are already used in thousands of engineering projects, as well as the third-era aerosol has grown to be Increasingly more acknowledged by buyers Aerosol hearth extinguisher application variety a. Electrical fire Conversation place, conversation foundation station, electronic Laptop place, and so forth.; Electrical fires in areas containing precision instruments and machines, including ability distribution rooms, generator rooms, cable interlayers, cable wells, cable trenches, and so forth. b. Sound surface area hearth Surface area fire of combustible good materials in locations where by combustible good materials are applied or saved. c. Liquid fireplace Liquid fires in spots exactly where diesel oil is generated, used or stored (except -35 diesel), significant oil, transformer oil, animal and vegetable oil and various flammable liquids of Group C; In advance of extinguishing a gasoline fire, the fuel supply could be cut off. Aerosol hearth suppression method application . d. The S-kind aerosol fire extinguishing unit can not be accustomed to place out the subsequent fires ①Substances that could be oxidized with no air, for example nitrocellulose, gunpowder, and so on.; Energetic metals, such as potassium, sodium, magnesium, titanium, and many others.; compounds which will decompose by on their own, for example certain peroxides, hydrazine, and so forth. Steel hydrides, which include potassium fluoride, sodium hydride, and so forth. Organic substances, like phosphorus. Robust oxidants, like nitrogen oxide, fluorine, etc. ② Deep fire of combustible solid components. ③ Fireplace in crowded places, for instance theaters, auditoriums, and so forth. ④ Fireplace in destinations with explosion hazard, which include workshops with explosive dust. ⑤ Extremely-clean atmosphere, for instance pharmaceutical workshops, chip processing areas, health-related rooms, and so on. Aerosol fire extinguishing Functioning basic principle The 4 features of combustion: combustibles, oxidizer, temperature and uninhibited chain reaction. The fireplace extinguishing system of hearth extinguishing gasoline is to get rid of one or a number of in the four features of combustion. The good hearth extinguishing agent inside the S-type aerosol hearth extinguishing product is started off by electrical energy, and it undergoes redox reaction to variety a large number of agglomerated hearth extinguishing aerosols, and its composition is principally N2, a little quantity of CO2, and metal salt solid particles. Aerosol fireplace extinguishing mechanism is as follows Mechanism of endothermic cooling and fire extinguishing Metallic salt particles take up a large amount of heat at significant temperatures, and endure Bodily endothermic procedures like thermal melting and gasification. The flame temperature is decreased after which you can radiated to your combustible combustion surface area for gasification of combustible molecules and vaporized combustible molecules. The heat of pyrolysis of combustion molecules into absolutely free radicals will minimize, as well as combustion response velocity will likely be suppressed to a certain extent. 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