A low-temperature S-type aerosol fire extinguishing agent

Abstract

The invention discloses a low-temperature S-type aerosol fire extinguishing agent. The low-temperature S-type aerosol fire extinguishing agent is composed of an oxidizing agent, a reducing agent, an adhesive, and a performance conditioning agent, the oxidizing agent employs strontium nitrate as a main mateiral, potassium nitrate as an auxiliary material, dicyandiamide as the reducing agent, and phenolic resin as the adhesive, and the conditioning agent selects potassium oxalate, magnesium powder and hexamethylene tetramine. The fire extinguishing agent can guarantee that corrosivity of the combustion products is reduced, good fire extinguishing usefulness is guaranteed, and fire extinguishing usefulness can reach 35 g / m<3> which is far lower than amount of a national standard. The fire extinguishing agent has excellent insulating properties, and can effectively protect the precision equipment and file in a combustion area. The reaction temperature of the fire extinguishing agent is about 600 DEG C, fire extinguishing time is shortened, at the same time, possibility of secondary combustion of the on-site equipment is greatly reduced, and the fire extinguishing agent is suitable for environment of an automobile engine compartment, an airplane bunker, a power distribution cabinet, electrical equipment and archives.

Description

technical field [0001] The invention relates to a low-temperature S-type aerosol fire extinguishing agent, which belongs to the field of fire fighting. Background technique [0002] Aerosol fire extinguishing agent has the advantages of high fire extinguishing efficiency, low cost, no damage to the atmospheric ozone layer, short retention time in the air, and no pollution, and is widely used. The prior art often uses perchlorate as an oxidizing agent, which is poisonous and has certain damage to the human body and the environment (Charles Ding Gilbert. Solid particle aerosol fire extinguishing agent [J]. International Fire Protection.) . The aerosol with potassium nitrate as the main oxidant has a good fire extinguishing effect, but because the potassium oxide in the product can easily absorb moisture in the air and deliquesce, it will corrode the equipment and documents in the protected area, and in severe cases, the equipment will be scrapped, causing huge damage Economi...

AI Technical Summary

Problems solved by technology

The aerosol with potassium nitrate as the main oxidant has a good fire extinguishing effect, but because the potassium oxide in the product can easily absorb moisture in the air and deliquesce, it will corrode the equipment and documents in the protected area, and in severe cases, the equipment will be scrapped, causing huge damage Economic loss (Ma Jian. Study on the diffusion and secondary damage of potassium salt type aerosol fire extinguishing agent[J]. Fire science and technology.)

In addition, the existing aerosols with potassium nitrate as the main oxidant also have the problem of high combustion temperature, which will cause secondary combustion and have a great impact on the fire extinguishing efficiency (Zhu Jingli. Influence of sol fire extinguishing agent on combustion temperature[J].Fire Science and Technology)

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