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Specifics You Need To Understand About Aerosol Fire Extinguishing






What exactly is Aerosol fire extinguishing
What is aerosol fire extinguisher? Aerosol fire extinguishing technologies is a whole new kind of fireplace extinguishing technological innovation formulated on The idea of armed service pyrotechnics.


The primary technology of aerosol hearth extinguishing technology was born inside our country, also called smoke hearth extinguishing engineering, which commenced inside the early nineteen sixties. It absolutely was accomplished by scientific scientists with the Tianjin Hearth Exploration Institute of Public Security, who independently designed an automated smoke fireplace extinguishing process, which is mainly used to extinguish fires in Class A, B, and C liquid storage tanks.

In the early 1980s, Using the emergence of environmental security problems of “halon fire extinguishing agent”, obtaining solutions to halon became a vital analysis matter.

At the end of the eighties, Russian experts very first succeeded in studying aerosol hearth extinguishing engineering which can extinguish fires within a submerged manner, which opened up a whole new way for halon substitution exploration. Subsequently, aerosol fire extinguishing technological innovation has attracted the eye of the Intercontinental Local community, and international locations which include China, The us, Australia, Malaysia together with other nations have also started exploration on new aerosol hearth extinguishing technologies.

In most cases, aerosol can be a steady state program shaped via the dispersion of fine stable or liquid particles in a fuel. Skillfully, it refers into a colloidal system that takes advantage of gasoline (normally air) as being the dispersion medium and good or liquid particles because the dispersant.Frequent aerosols in mother nature—clouds, smoke, fog, etc.The dimensions with the particles in aerosols is mostly from the get of ten-5 to 10-oneμm, that has fuel fluidity and may diffuse all around obstructions.

The medicament during the aerosol fireplace suppression program gadget is good, plus the part emitted from the medicament throughout the oxidation-reduction reaction is aerosol. The first era of aerosol fireplace extinguishing technological innovation-smoke fire extinguishing technology.

K-variety aerosol hearth extinguisher, also known as potassium salt hearth extinguishing technologies, is the 2nd phase of the event of aerosol hearth extinguishing engineering, which started in the previous Soviet Union during the mid-sixties. Our state started out late in this regard, starting up inside the early 1990s.

In this sort of aerosol making agent, potassium nitrate is principally applied as the principle oxidant. Its sprays have high fireplace extinguishing performance, but simply because they contain a great deal of potassium ions, Quick to soak up dampness, forming a yellow and sticky potent alkaline conductive liquid movie, this substance is quite harming to electronic equipment, so K-form aerosol computerized hearth extinguishing gadget can't be Utilized in electronic devices, precision devices and cultural relics Archive spot. At this time, the use available in the market is little by little lowering.

The third-technology aerosol (S form) is especially crafted from strontium salt as the most crucial oxidant. In contrast to the 2nd-era potassium salt (K-form) aerosol, strontium ions tend not to take up humidity, never sort a conductive Resolution, and will not likely bring about harm to electrical devices. In 2001, China Mobile Communications Company picked the strontium salt aerosol (S-type aerosol automated hearth extinguishing system) produced by the company soon after stringent inspection and verification to safeguard its conversation foundation stations together with other locations Geared up with innovative Digital machines.

At the moment, strontium salt aerosol goods happen to be applied in A huge number of engineering projects, plus the third-technology aerosol happens to be A growing number of approved by users

Aerosol fireplace extinguisher application range
a. Electrical hearth
Communication home, interaction foundation station, electronic Pc place, and so on.;

Electrical fires in spots containing precision instruments and devices, for instance electric power distribution rooms, generator rooms, cable interlayers, cable wells, cable trenches, etc.

b. Good floor fire
Surface fireplace of combustible solid resources in destinations where by combustible stable components are used or stored.

c. Liquid hearth
Liquid fires in spots where diesel oil is manufactured, employed or saved (other than -35 diesel), weighty oil, transformer oil, animal and vegetable oil and also other flammable liquids of Category C; Prior to extinguishing a gas hearth, the gasoline source is usually Lower off.

Aerosol fire suppression program application .

d. The S-kind aerosol fireplace extinguishing unit cannot be utilized to place out the subsequent fires
①Substances which can be oxidized with out air, including nitrocellulose, gunpowder, and so on.; Lively metals, which include potassium, sodium, magnesium, titanium, etcetera.; compounds that will decompose by on their own, like particular peroxides, hydrazine, etc. Metal hydrides, which include potassium fluoride, sodium hydride, and many others. Natural substances, for instance phosphorus. Solid oxidants, like nitrogen oxide, fluorine, and many others.

② Deep fireplace of combustible stable materials.

③ Fire in crowded spots, which include theaters, auditoriums, etcetera.

④ Hearth in places with explosion hazard, for instance workshops with explosive dust.

⑤ Extremely-cleanse surroundings, such as pharmaceutical workshops, chip processing sites, health care rooms, etcetera.

Aerosol fire extinguishing Doing the job basic principle
The 4 aspects of combustion: combustibles, oxidizer, temperature and uninhibited chain response. The fireplace extinguishing system of hearth extinguishing fuel is always to eliminate a person or various with the 4 features of combustion.

The solid fire extinguishing agent in the S-kind aerosol hearth extinguishing gadget is started out by electricity, and it undergoes redox reaction to variety a lot of agglomerated fire extinguishing aerosols, and its composition is principally N2, a small level of CO2, and steel salt good particles.

Aerosol fire extinguishing mechanism is as follows
System of endothermic cooling and fireplace extinguishing
Metallic salt particles take in a large amount of heat at large temperatures, and bear Actual physical endothermic procedures such as thermal melting and gasification. The flame temperature is lowered after which you can radiated for the combustible combustion surface for gasification of combustible molecules and vaporized combustible molecules. The warmth of pyrolysis of combustion molecules into totally free radicals will minimize, along with the combustion response velocity will be suppressed to a certain extent.
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