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Oil rapid fire extinguishing agent

A fire extinguishing agent and rapid technology, applied in fire protection equipment and other directions, can solve the problems of long-term re-ignition, low solubility, weak hydrophilicity, etc., and achieve fine and uniform foam, good chemical stability, and good re-ignition resistance. Effect

Inactive Publication Date: 2004-09-15
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the fire was extinguished, the foam density on the oil surface was relatively uniform, and the self-sealing property was better, but there were still a few small flames on the foam surface
If it takes too long, there is a possibility of resurgence
[0007] At the same time, fluorocarbon surfactants have large molecular weight, low solubility, and weak hydrophilicity, so they are easy to stratify, making the fire extinguishing agent unstable and corrupt

Method used

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  • Oil rapid fire extinguishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An oil rapid fire extinguishing agent, mainly composed of the following components:

[0025] C 6 f 13 SO 2 NH(CH 2 ) 3 N(CH 3 )CONH 2 3.5%

[0026] F[C(CF 3 )FCF 2 O]nC(CF 3 )FCONH(CH 2 ) 3 NO(C 2 h 5 ) 2 (n=1-2) 3.0%

[0027] Coconut Betaine 15%

[0028] Hydrolyzed Animal Protein 4%

[0029] Sodium 2-Ethylhexyl Sulfate 10%

[0030] Xanthan Gum 0.5%

[0031] Water 63%

Embodiment 2

[0033] An oil rapid fire extinguishing agent, mainly composed of the following components:

[0034] C 6 f 13 SO 2 NH(CH 2 ) 3 N(CH 3 )CONH 2 2.5%

[0035] F[C(CF 3 )FCF 2 O]nC(CF 3 )FCONH(CH 2 ) 3 NO(C 2 h 5 ) 2 (n=1-2) 2.5%

[0036] Coconut Betaine 15%

[0037] Hydrolyzed Animal Protein 5%

[0038] Sodium 2-Ethylhexyl Sulfate 10%

[0039] Lemon Pectin 1%

[0040] Water 64%

Embodiment 3

[0042] The present invention carries out fire extinguishing test comparison with commercially available oily fire extinguishing agent (as strengthened water), all with 6 liters of portable foam fire extinguishers as test samples. Add 35 liters of 90# gasoline into the garden iron basins with a diameter of 1.2 meters respectively, ignite the gasoline, and start to extinguish the fire after burning for 1 minute. The results of the test are shown in the table below.

[0043]

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PUM

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Abstract

The invention relates to an oil fast extinguishant, mainly composed of the following components: C6F13SO2NH(CH2)3N(CH3)CONH2, 1-5%; F[C(CF3)FCF2O]nC(CF3)FCONH(CH2)3NO(C2H5)2 (n=1-2), 1-5%; coconut oil-based betaine, 6-15%; hydrolyzed animal protein, 2-5%; cosolvent, 5-15%; adhesion booster, 0.5-1%; water, 30-65%. These components have cooperating effect. It fast forms sealed foam layer on the oil surface, to isolate oxygen and prevent fuel from evaporating, fast extinguishing oil conflagration.

Description

technical field [0001] The invention relates to a rapid fire extinguishing agent used for fuel oil fires in oil fields, large oil storage yards, gas stations and the like. Background technique [0002] The specific gravity of water is 0.9982 at 20°C, and the specific gravity of crude oil is generally about 0.86 at 20°C. Oil fires cannot be extinguished with water, the water will sink below the oil, and the oil will continue to burn in contact with oxygen on the surface. The surface tension of water is 72.80mN / m at 20°C. The surface tension of dilute solutions of ordinary surfactants can be reduced to about 20mN / m, and the surface tension of dilute solutions of fluorocarbon surfactants can be reduced to 20mN / m or even lower. Therefore, the water film of fluorocarbon surfactant aqueous solution can spread on the oil surface, isolate oxygen, and extinguish the fire, so it is often used as a special fire extinguishing agent for oil. [0003] However, simple fluorocarbon surfa...

Claims

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Application Information

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IPC IPC(8): A62D1/02
Inventor 尹忠
Owner SOUTHWEST PETROLEUM UNIV
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