Firework type extinguishant and extinguisher thereof

Abstract

The composition of fire-extinguishing agent is made of (wt%) 40-65% of oxidant, 10-20% of fuel, 20-40% of catalyst, 0-5% of additive and 3-7% of combustion speed regulator, in which the oxidant is ammonium nitrate, the fuel is a compound whose molecular formula is CnH2n-2On-1 (n=5-7), and the catalyst is one of nitrates or mixture of more than two kinds of them, and the combustion speed regulatoris chloride, inorganic acid salt and organic acid salt. Said invented fire extinguisher includes exhaust chamber, cooling chamber and charging chamber, said three portions are made into cylindrical form. Said exhaust chamber includes filtering screen and nozzle on the filtering screen, the cooling chamber includes includes at least 6 layers of sieve plates, on the plate the screen for holding cooling agent is laid, and the charging chamber also is equipped with a starter made of chemical initiating agent. Its combustion speed is high, it does not pollute environment, and is extensive in application.

Description

1. Technical field [0001] A pyrotechnic fire extinguishing agent and a fire extinguisher thereof belong to the technical field of fire extinguishing agents and fire extinguishers. 2. Background technology [0002] In the patent CN1146368A, a kind of fire extinguishing composition containing ammonium nitrate, potassium nitrate, hydrocarbon and other additives is introduced. The advantage of this fire extinguishing composition is to release a large amount of inert gas products (such as carbon dioxide, nitrogen, water vapor), which can Effectively extinguish fire, however, this fire extinguishing composition has a slow burning rate of only 0.015g / cm 2 s or so, can not meet the requirements of rapid fire extinguishing. Several kinds of fire extinguishing agents are introduced in US Pat. No. 5,423,385, but these several fire extinguishing agents are all different from the composition, content and purpose of the present invention. 3. Contents of the invention [0003] A pyrote...

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Problems solved by technology

[0002] In the patent CN1146368A, a kind of fire extinguishing composition containing ammonium nitrate, potassium nitrate, hydrocarbon and other additives is introduced. The advantage of this fire extinguishing composition is to release a large amount of inert gas products (such as carbon dioxide, nitrogen, water vapor), which can Effectively extinguish fire, however, this fire extinguishing composition has a slow burning rate of only 0.015g / cm 2 s or so, can not meet the requirements of rapid fire extinguishing

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