What is condensed aerosol fire suppression and how does it woks
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What is condensed aerosol fire suppression and how does it woks
September 22, 2021
Condensed aerosol fire suppression systems have been innovative creations in the fire protection industry in recent years, till now many people still do not know what is condensed aerosol fire suppression, how it works, and where it can be applied.
Today this article is going to talk about these topics and make a deep discussion about them.
First, What is condensed aerosol fire suppression and how does it work?
It takes potassium nitrate and strontium nitrate as the main oxidant, phenol-formaldehyde resin as the main adhesive, dicyandiamide as a combustible agent, etc, we can count out that the above tens of chemicals are mixed to form the condensed aerosol fire extinguishing agent.
When the aerosol generator starts to work, the condensed aerosol compound runs out from the nozzle location, and fills the protection area with millions of micro airborne particles to surround the flame, then the fire is suppressed by interrupting the chemical chain reactions, to cool the flame, to absorb the heat and without depleting the oxygen.
Its main working steps are:
a. Reduce the fuel.
b. Remove the oxygen.
c. Remove the heat, and hinder a chain reaction.
Finally, the fire is off, with only little chemicals of Sr(OH)2, SrCO3, and K+.
it is to show how aerosol fire extinguishing compound works to suppress fire.
Second, Where it is being used.
In other words, where are the main applications, it has a wide range of applications in a variety of industries and closed spaces, we list out some but not limits to them below:
Third, What are the advantages of aerosol fire extinguishers?
there are some main advantages of aerosol fire extinguishers:
It works without a piping network, in which some other gas fire suppression systems must have piping systems, for example, a Carbon Dioxide fire suppression system.
It works without any pressure, in which others should have pressure.
It suppresses fire without any damage to end equipment and high-value equipment.
It is compact and small in size and can be installed in narrow spaces for fire protection.
Fourth, What are the disadvantages of aerosol fire extinguishing systems?
it not be able to apply in the following fields:
Those substances that can be oxidized without air, are active metal, spontaneous combustible substances, and metallic oxide.
Deep fire department of combustible solid materials.
Public places were full of people, and places of explosion hazards, and those places require a clean environment.
Fifth, How effective the aerosol fire extinguishing systems are?
Aerosol fire extinguishing agents can be used to suppress class A fire, B fire, C fire, E fire, and F fire.
In countries of Russia, America, Cyprus, Malaysia, etc, the aerosol concentration is from 50 grams to 100 grams per cubic meter, but in China, as the main oxidant of aerosol is made by strontium nitrate aerosol, the concentration has to be 100 gram per cubic meters, but this is good because the Strontium nitrate based aerosol is cause little residue, cleaner and environmentally friendly.
After you know more about aerosol, aerosol working principle, aerosol application fields, and aerosol characteristics, then it will more better to service you and your job.