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A kind of S-type aerosol fire extinguishing agent and preparation method thereof

A technology of fire extinguishing agent and aerosol, which is applied in the direction of fire prevention equipment, etc., can solve the problems of large aerosol buoyancy, high aerosol temperature, and unstable combustion of fire extinguishing agent, and achieve low reaction temperature, reduced reaction temperature fluctuation range, and insulation Good results

Inactive Publication Date: 2015-09-16
四川齐盛消防设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides an S-type aerosol fire extinguishing agent and its preparation method, which can solve the problems of unstable combustion of the fire extinguishing agent, excessively high temperature of the released aerosol, and large buoyancy of the aerosol.

Method used

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  • A kind of S-type aerosol fire extinguishing agent and preparation method thereof
  • A kind of S-type aerosol fire extinguishing agent and preparation method thereof
  • A kind of S-type aerosol fire extinguishing agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0038] like figure 1 As shown, it shows that the specific process of the S-type aerosol fire extinguishing agent is:

[0039] S101 preparing phenolic resin solution: take phenolic resin by weighing 7 parts by weight of phenolic resin, dissolve in ethanol, make the phenolic resin solution that mass concentration is 45%;

[0040] S102 Preparation of mixed raw materials: 35 parts of strontium nitrate, 10 parts of potassium nitrate, 6 parts of magnesium nitrate, 12 parts of potassium oxalate, 5 parts of aluminum powder, 7 parts of magnesium powder, 5 parts of sucrose, 5 parts of urea, 2 parts of charcoal powder, 2 parts of basic magnesium carbonate, 2 parts of hexamethylenetetramine, and 2 parts of azodicarbonamide were dried, mixed uniformly, pulverized, and filtered through a 200-mesh sieve to obtain mixed raw materials;

[0041] S103 Granulation: Add the phenolic resin solution to the mixed raw materials, stir evenly, and then use a 40-mesh screen to granulate.

[0042] S104 ...

Embodiment 2

[0045] Prepare the phenolic resin solution: take the phenolic resin by weighing 5 parts by weight of the phenolic resin, dissolve it in ethanol, and make a phenolic resin solution with a mass concentration of 40%;

[0046] Preparation of mixed raw materials: Take 25 parts of strontium nitrate, 15 parts of potassium nitrate, 8 parts of magnesium nitrate, 10 parts of potassium oxalate, 8 parts of aluminum powder, 10 parts of magnesium powder, 6 parts of sucrose, 5 parts of urea, 2 parts of charcoal powder, alkali 2 parts of formula magnesium carbonate, 2 parts of hexamethylenetetramine, 2 parts of azodicarbonamide, dry, mix uniformly, pulverize, then filter with a particle diameter of 200 mesh sieves to obtain mixed raw materials;

[0047] Granulation: Add the phenolic resin solution to the mixed raw materials, stir evenly, and then use a 40-mesh screen to granulate.

[0048] Drying: Place the granulated material in an electric blast drying oven at 60°C and a relative humidity o...

Embodiment 3

[0051] Prepare the phenolic resin solution: take the phenolic resin by weighing 6 parts by weight of the phenolic resin, dissolve it in ethanol, and make a phenolic resin solution with a mass concentration of 45%;

[0052]Preparation of mixed raw materials: 30 parts of strontium nitrate, 8 parts of potassium nitrate, 8 parts of magnesium nitrate, 10 parts of potassium oxalate, 6 parts of aluminum powder, 10 parts of magnesium powder, 12 parts of sucrose, 2 parts of charcoal powder, 4 parts of basic magnesium carbonate 2 parts, 2 parts of hexamethylenetetramine, 2 parts of azodicarbonamide, dry, mix uniformly, pulverize, then filter with a particle diameter of 200 mesh sieves to obtain mixed raw materials;

[0053] Granulation: Add the phenolic resin solution to the mixed raw materials, stir evenly, and then use a 40-mesh screen to granulate.

[0054] Drying: Place the granulated material in an electric blast drying oven at 60°C and a relative humidity of not more than 30%, and...

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Abstract

The invention discloses an S-shaped aerosol extinguishing agent and a preparation method thereof. The S-shaped aerosol extinguishing agent comprises the following components by weight: 45 to 65 parts of oxidant, 30 to 55 parts of reductant, 6 to 15 parts of property modifier, and 5 to 10 parts of adhesive, wherein the reductant comprises components such as potassium oxalate, aluminium powder, magnesium powder urea and the like. Through the adjustment of the components and the match, the reductant component and the proportion of the reductant in the extinguishing agent are changed; the reductant can have strong oxidation-reduction reaction with the oxidant by being added with potassium oxalate; meanwhile dissociated K and Sr can have frequent chain reactions with an active group H, OH and O during the burning in a moment; and the exothermic reaction among the active group H, OH and O can be consumed and inhibited, thereby playing a restraining effect on the burning reaction. Thorough the addition of potassium oxalate, magnesium, aluminium, functional additive magnesium carbonate and the like, the burning and ignition property can be improved; and the reaction temperature of the extinguishing agent can be reduced.

Description

technical field [0001] The invention relates to the technical field of an aerosol fire extinguishing agent used in fire fighting, in particular to an S-type aerosol fire extinguishing agent and a device. Background technique [0002] In the aerosol generated by the aerosol fire extinguishing agent, the ratio of gas to solid product is about 6:4, and the solid particles are mainly metal oxides, carbonates or bicarbonates, carbon particles and a small amount of metal carbide; the gas products are mainly is N 2 , a small amount of CO 2 and CO. Solid particle aerosol, like dry powder fire extinguishing agent, exerts its fire extinguishing effect through several mechanisms, such as the cooling effect of endothermic decomposition, the chemical inhibition of gas phase and solid phase, and the reduction of local oxygen content by inert gas. [0003] The development of aerosol has experienced the first generation of smoke fire extinguishing technology; the second generation of fir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/06
Inventor 张毅谢平刘海燕
Owner 四川齐盛消防设备制造有限公司
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