Pyrotechnical hot-gas sol fire extinguishing agent and preparation method thereof

A technology of fire extinguishing agent and hot gas, which is applied in the direction of fire prevention equipment, etc., can solve the problems of fire and combustion instability, increase the risk of fire extinguishing agent, harsh operating environment, etc., and achieve the effect of simplified composition, low pressure and low operating environment

Inactive Publication Date: 2010-09-08
NANJING UNIV OF SCI & TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, most aerosol fire extinguishing agents were pressed by hot pressing, and there were obvious defects: First, the pressure required for the fire extinguishing agent to form a product was relatively high, ranging from 1000 to 1500kg/cm 2 (100 ~ 150Mpa), which inc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Each composition is weighed according to the following weight percentages:

[0045] Strontium nitrate 41~56,

[0046] Potassium nitrate 8-15,

[0047] Charcoal powder 14~22,

[0048] Magnesium powder 1~4,

[0049] Nitrocellulose 4~17,

[0050] Magnesium carbonate 2-22, spare;

[0051] Pour strontium nitrate, potassium nitrate, charcoal powder, magnesium powder and magnesium carbonate into a ball mill and mix for 2 to 4 hours to make a mixed medicine; then, pass the mixed medicine through a standard sieve with an aperture of 0.250mm×0.250mm; Then the mixed medicine after sieving is evenly stirred with nitrocellulose, and then mixed with anhydrous acetone (the consumption ratio of anhydrous acetone is roughly: when the total weight of each component is 1160 grams, add anhydrous acetone 500ml) to carry out drug mixing treatment After 10 minutes, at a pressure of 50-100kg / cm 2 Next, carry out compression molding, and put it into a drying room for drying after pressing...

Embodiment 2

[0053] Each composition is weighed according to the following weight percentages:

[0054] Strontium oxide 12-25,

[0055] Strontium peroxide 29-31,

[0056] Potassium perchlorate 8-15,

[0057] Magnesium powder 15~26,

[0058] Polyester resin 4~17,

[0059] White carbon black 2-22, spare;

[0060] Pour strontium oxide, strontium peroxide, potassium perchlorate, magnesium powder and white carbon black into a ball mill and mix for 2 to 4 hours to make a mixed medicine; then, pass the mixed medicine through a standard sieve with an aperture of 0.250mm×0.250mm Sieve; then the mixed medicine after sieving and polyester resin are evenly stirred, and then the anhydrous acetone (the consumption ratio of anhydrous acetone is roughly: when the total weight of each component is 1160 grams, add anhydrous acetone 500ml) After mixing the medicine for 10 minutes, at a pressure of 50-100kg / cm 2 Next, carry out compression molding, and put it into a drying room for drying after pressing...

Embodiment 3

[0062] Each composition is weighed according to the following weight percentages:

[0063] Strontium permanganate 41~56,

[0064] Potassium chloride 3~7,

[0065] Potassium perchlorate 4-10,

[0066] Charcoal powder 15~26,

[0067] Polyester resin 4~17,

[0068] Strontium carbonate 2-22, spare;

[0069] Pour strontium permanganate, potassium chloride, potassium perchlorate, charcoal powder and strontium carbonate into a ball mill and mix for 2 to 4 hours to make a mixed medicine; then, pass the mixed medicine through a standard sieve with an aperture of 0.250mm×0.250mm Sieve; then the mixed medicine after sieving is evenly stirred with polyester resin, and then use anhydrous acetone (the consumption ratio of anhydrous acetone is roughly: when the total weight of each component is 1160 grams, add anhydrous acetone 500ml) After 10 minutes of drug mixing treatment, at a pressure of 50-100kg / cm 2 Next, carry out compression molding, and put it into a drying room for drying a...

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PUM

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Abstract

The invention discloses a pyrotechnical hot-gas sol fire extinguishing agent and a preparation method thereof, and relates to the field of fire extinguishers. The pyrotechnical hot-gas sol fire extinguishing agent is prepared from 41 to 56 weight percent of first oxidant, 8 to 15 weight percent of second oxidant, 15 to 26 weight percent of burnable agent, 4 to 17 weight percent of adhesive and 2 to 22 weight percent of functional additive. The preparation method comprises the following steps of: mixing the oxidants, the burnable agent and the functional additive, then screening the mixture, stirring the mixture and the adhesive, mixing and stirring the mixture and organic solution, pressing the mixture and drying the mixture. The pyrotechnical hot-gas sol fire extinguishing agent has the characteristics of high fire extinguishing efficiency, simplified fire extinguishing composition, no influence of combustion reaction on external oxygen concentration change, no harm substance production to human bodies, animals and natural environments, safer operating mode, simpler and more convenient preparation method and the like, and is suitable for extinguishing fire of fuel and electrical equipment of automobile engine cabins, airplane fuel cabins, power distribution cabinets and the like.

Description

technical field [0001] The invention relates to fire-fighting equipment, in particular to a pyrotechnic hot aerosol fire extinguishing agent suitable for fuel and electrical equipment fires such as automobile engine compartments, aircraft fuel compartments, and power distribution cabinets, and a preparation method thereof. Background technique [0002] Since the advent of aerosol fire extinguishing technology, it has been favored by the world because of its non-toxic, harmless, high efficiency, total submersion, and all-round fire extinguishing characteristics, and related patents have emerged in an endless stream. At present, the aerosol fire extinguishing agents used for fuel oil and electrical equipment in relatively closed spaces such as automobile engine compartments mainly include hot aerosol fire extinguishing agents and cold aerosol fire extinguishing agents. Hot aerosol fire extinguishing agents mainly include potassium salts represented by Russian patent groups as o...

Claims

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Application Information

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IPC IPC(8): A62D1/06
Inventor 潘功配艾刚强曾大乔
Owner NANJING UNIV OF SCI & TECH
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