Foam extingusher with covering function

A foam fire extinguishing agent and functional technology, applied in the field of foam fire extinguishing agents, can solve the problems of not covering oil to prevent evaporation, preventing the leakage of toxic, harmful, inflammable and explosive chemicals, short retention time, and foam failure. Product evaporation, good fire-extinguishing performance, good re-ignition performance

Inactive Publication Date: 2003-04-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantage is that the foam generated during use has a short retention time on the oil, and the foam will fail due to a large amount of water precipitation, and cannot cover the oil to prevent evaporation, prevent poisonous, harmful, flammable, explosive, and chemical dangerous goods from leaking
As a foam fire extinguishing agent that can be used for fire extinguishing and has a covering function, there has been no report at home and abroad so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Example 1: Weigh F1157N 3.0Kg, ethylene glycol butyl ether 6.0Kg, F3 0.2Kg, CAB 16.0Kg to form mixture A, then weigh 1.0Kg sodium alginate, ethylene glycol 5.0kg, urea 3.0Kg, water 65.0Kg to form mixture B, add A to B, stir evenly, finally add preservative formaldehyde 0.2Kg, stir until it is a transparent solution, adjust the pH to 8.2 with 10% sodium hydroxide, which is the product of the present invention.

[0009] F in this example 3 OBS or FC-4 can be used instead, CAB can be changed to LAB or MZL or K12 or APG, sodium alginate can be changed to JR-400 or CMC or HEC or cationic starch or chitosan or xanthan gum, ethylene glycol can be Use diethylene glycol or glycerin instead.

Embodiment 2

[0010] Example 2: Weigh F1203 5.0Kg, propylene glycol butyl ether 3.0Kg, OBS 0.4Kg, LAB 10.0Kg to form A, then weigh JR-400 0.7Kg, glycerol 8.0Kg, urea 5.0Kg, water 46.0Kg to form B, add A to B, stir evenly, finally add preservative sodium benzoate 0.6Kg, stir until it becomes a transparent solution, adjust the pH to 8.5 with 10% sodium hydroxide, add buffer

[0011] project

[0012] Nouns used in the present invention: F1157N is perfluoroalkyl betaine, F1203 is a compound of fluorocarbon surfactant and hydrocarbon surfactant, F3 is perfluorooctylsulfonyl quaternary ammonium salt, OBS is perfluoroalkoxy Sodium phenyl sulfonate, FC-4 is perfluoropolyoxypropylene quaternary ammonium iodide, CAB is cocamidopropyl betaine, LAB is lauryl amidopropyl betaine, MZL is 1-hydroxyethyl-1- Carboxymethyl-alkyl imidazoline, APG is alkyl polyglucoside, K12 is sodium lauryl sulfate, JR-400 is cationic cellulose ether, CMC is sodium carboxymethyl cellulose, HEC is hydroxyethyl cel...

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PUM

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Abstract

A fire-extinguishing foaming chemical with covering function features that it contains F1157N or F1203, F3 or OBS or FC-4, JR-400 or sodium algate or CMC or HEC or cationic starch or chitosan or xanthan gum, CAB or LAB or MZL or K12 or APG, ethanediol butylether or propanediol butylether, glycol or diglycol or propanetriol, urea, anticorrosion agent and water through proportioning and compounding. Its advantages are high fire-extinguishing power, strong covering function and high effect on preventing evaporation of oil.

Description

technical field [0001] The invention relates to a foam fire extinguishing agent, in particular to a foam fire extinguishing agent with covering function. technical background [0002] The use of foam fire extinguishing agents in fire fighting has been reported at home and abroad, and aqueous film-forming foam fire extinguishing agents (AFFF for short) are representative. In the 1960s, the U.S. Navy first successfully developed this fire extinguishing agent, and it has been widely used in some industrially developed countries by the end of the 1970s. Domestic development of this type of fire extinguishing agent is relatively late, and the first generation of aqueous film-forming foam fire extinguishing agent was successfully developed by Tianjin Fire Station in the 1980s. Through the continuous improvement and improvement of scientific research personnel, the current domestic water film-forming foam fire extinguishing agent technology has basically matured. When this fire ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/02
Inventor 俞雪兴吴京峰谈龙妹姜素霞
Owner CHINA PETROLEUM & CHEM CORP
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