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Water-based extinguishing agent with solidification and foaming characteristics and preparation method

A technology for solidifying foaming and fire extinguishing agents, which can be used in fire prevention equipment, etc. It can solve the problems of low burning resistance, limited liquid analysis time, and high price, and achieve the effects of long burning resistance, good application prospects, and stable storage

Inactive Publication Date: 2014-01-15
CHINESE PEOPLES ARMED POLICE FORCE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most commonly used water-based fire extinguishing agent for fighting fires in large oil tanks is aqueous film-forming foam fire extinguishing agent, which is a foam liquid based on hydrocarbon surfactants and fluorocarbon surfactants. A layer of water film is formed on the surface, which has the characteristics of high efficiency, environmental protection, and long shelf life, but is expensive and has low anti-burning performance
The national standard GB15308-2006 "Foam Fire Extinguishing Agent" stipulates that the anti-burning time of low-expansion foam liquid to non-water-soluble liquid fuels is grade A (the highest level), and the anti-burning time is greater than 10 minutes. For some super large fires, the duration of the fire It may be as long as several hours or even several days, and the anti-burning time of aqueous film-forming foam fire extinguishing agent cannot meet the requirements
The anti-burning time of aqueous film-forming foam fire extinguishing agent is determined by the liquid analysis time of the foam, and the improvement of its liquid analysis time based on the existing technology is limited, so it is necessary to continuously develop new fire extinguishing agents to meet the actual needs

Method used

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  • Water-based extinguishing agent with solidification and foaming characteristics and preparation method
  • Water-based extinguishing agent with solidification and foaming characteristics and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1 (all are parts by mass in the formula)

[0013] Expandable graphite 10, mica 10;

[0014] Sodium lauryl sulfate 0.95, perfluoroalkyl benzyl quaternary ammonium salt fluorocarbon surfactant 0.05;

[0015] Methyl hydroxypropyl cellulose 0.7;

[0016] Water: 78.3.

[0017] Grind 10 parts of expandable graphite and 10 parts of mica to 1250 mesh in a pulverizer, and grind 10 parts of expandable graphite, 10 parts of mica and 0.95 parts of sodium lauryl sulfate in a high-speed disperser, 0.05 Parts of perfluoroalkylbenzyl quaternary ammonium salt fluorocarbon surfactants were mixed and dispersed for 10 minutes to obtain a mixture, dissolved in 78.3 parts of water in a stirring tank, and 0.7 parts of methyl hydroxypropyl cellulose was added to the mixture obtained above, stirred and mixed evenly Get fire extinguisher. According to the national standard GB15308-2006 "foam fire extinguishing agent", the fire extinguishing experiment was carried out. The fire ex...

Embodiment 2

[0018] Embodiment 2 (all are parts by mass in the formula)

[0019] Expandable graphite 10, boron modified phenolic resin 15, zinc borate 10;

[0020] Alkyl glycoside APG12161.75, perfluorobetaine fluorocarbon surfactant 0.05;

[0021] Sodium polyacrylate 0.5;

[0022] Water: 62.7.

[0023] Grind 10 parts of expandable graphite, 15 parts of boron-modified phenolic resin, and 10 parts of zinc borate to 1250 mesh in a pulverizer, and grind 10 parts of expandable graphite, 15 parts of boron-modified Phenolic resin, 10 parts of zinc borate, 1.75 parts of alkyl glycoside APG1216, and 0.05 parts of perfluorobetaine fluorocarbon surfactant were mixed and dispersed for 10 minutes to obtain a mixture, and 0.5 parts of sodium polyacrylate was dissolved in 62.7 parts of water in a stirring tank and then added to the above-mentioned In the mixture, stir and mix evenly to obtain the fire extinguishing agent. According to the national standard GB15308-2006 "foam fire extinguishing agent...

Embodiment 3

[0024] Embodiment 3 (all are parts by mass in the formula)

[0025] Boric acid 10, boron modified phenolic resin 10, ammonium polyphosphate 10;

[0026] Polyether modified silicone oil 0.1, perfluoroalcohol polyoxyethylene ether 0.1;

[0027] Xanthan gum 0.3;

[0028] Water: 69.5

[0029] Grind 10 parts of boric acid, 10 parts of boron-modified phenolic resin, and 10 parts of ammonium polyphosphate to 1250 mesh in a pulverizer, and grind 10 parts of boric acid and 10 parts of boron-modified phenolic resin in a high-speed disperser, 10 parts of ammonium polyphosphate, 0.1 part of polyether modified silicone oil, and 0.1 part of perfluoroalcohol polyoxyethylene ether were mixed and dispersed for 10 minutes to obtain a mixture. Dissolve 0.3 part of xanthan gum in a stirring tank with 69.5 parts of water and add the mixture obtained above , stir and mix evenly to obtain a fire extinguishing agent. According to the national standard GB15308-2006 "foam fire extinguishing agent",...

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Abstract

The invention relates to a water-based extinguishing agent with solidification and foaming characteristics and a preparation method of the water-based extinguishing agent. The water-based extinguishing agent with the solidification and foaming characteristics comprises the following substances by mass: 5-40 parts of organic or inorganic burning-resistant material which can be solidified and foamed after being heated, 0.1-2 parts of surfactant, 0.1-1 parts of water-soluble thickener, and 57-94 parts of water. The preparation method of the water-based extinguishing agent comprises the following steps: levigating the organic or inorganic burning-resistant material which can be solidified and foamed after being heated in a pulverizer to be 1250 meshes above, sufficiently dispersing, wetting and mixing the powder with the surfactant in a high-speed dispersing homogenizer, and then uniformly mixing with a water solution of the water-soluble thickener in a mixing tank. The water-based extinguishing agent can be uniformly dispersed in water and stably stored, quickly laid on the oil surface, stably suspended, and foamed to be films after being heated and accumulatively cover the surface. The water-based extinguishing agent has the advantage of special long anti-burning time, so that the water-based extinguishing agent is especially suitable for extinguishment and rescue for ultra-large type oil tanks.

Description

technical field [0001] The invention relates to a fire extinguishing agent and a preparation method thereof, in particular to a water-based fire extinguishing agent with solidification and foaming properties and a preparation method thereof. Background technique [0002] Water-based fire extinguishing agent is the most widely used fire extinguishing agent because of its low production cost and convenient use. The most commonly used water-based fire extinguishing agent for fighting fires in large oil tanks is aqueous film-forming foam fire extinguishing agent, which is a foam liquid based on hydrocarbon surfactants and fluorocarbon surfactants. A layer of water film is formed on the surface, which has the characteristics of high efficiency, environmental protection, and long shelf life, but it is expensive and has low fire resistance. The national standard GB15308-2006 "Foam Fire Extinguishing Agent" stipulates that the anti-burning time of low-expansion foam liquid to non-w...

Claims

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Application Information

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IPC IPC(8): A62D1/02
Inventor 赵敏王鹏孙均利高维英
Owner CHINESE PEOPLES ARMED POLICE FORCE ACAD
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