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Additive for water-mist fire suppression system

A technology of additives and fine water mist, which is applied in the direction of fire prevention equipment, etc., can solve the problems of low fire extinguishing efficiency, pollution, corrosion, etc., and achieve the effect of low production cost, low cost, and prevention of recombustion

Inactive Publication Date: 2005-07-06
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of this invention is to propose a kind of additive for fine water mist fire extinguishing, to overcome the defects of corrosion, pollution and low fire extinguishing efficiency respectively existing in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The fine water mist additive in the present embodiment adopts the formula listed in the table below:

[0037] Component mass percent concentration%

[0038] C 8 f 17 SO 2 F 6.0

[0039] Alkylphenol Ethoxylates 3.0

[0040] Urea 6.5

[0041] Triethanolamine 0.5

[0042] N-N-dimethylformamide 15.0

[0043] Sodium Lactate 1.5

[0044] water 67.5

[0045] The preparation steps are:

[0046] 1. The mass is 6.0% of the total mass of the solution C 8 f 17 SO 2 F is added to N-N-dimethylformamide whose mass is 15.0% of the total mass of the solution under slow stirring conditions, and stirred until completely dissolved;

[0047] 2. Waiting for C 8 f 17 SO 2 After F is completely dissolved, adding water with a quality of 67.5% of the total mass of the solution is diluted;

[0048] 3. Add triethanolamine with a mass of 0.5% of the total mass of the solution, urea with a mass of 6.5% of the total mass of the solution, and sodiu...

Embodiment 2

[0081] The fine water mist additive in the present embodiment adopts the formula listed in the table below:

[0082] Component Mass content%

[0083] (C 2 f 5 ) 2 C(CF 3 )=C(CF 3 )-OC 6 h 4 SO 3 Na 3.0

[0084] Alkylphenol polyoxyethylene ether 1.5

[0085] Urea 4.0

[0086]Triethanolamine 0.3

[0087] N-N-dimethylformamide 10.0

[0088] Sodium Lactate 1.0

[0089] water 80.2

[0090] Preparation process is with embodiment 1.

[0091] The effect that each component plays in the fire extinguishing process is the same as embodiment 1.

[0092] Experiment testing method is the same as embodiment 1.

[0093] C mentioned below 2 f 5 ) 2 C(CF 3 )=C(CF 3 )-OC 6 h 4 SO 3 Na% refers to diluting with water on the basis of the above formula, C 2 f 5 ) 2 C(CF 3 )=C(CF 3 )-OC 6 h 4 SO 3 The mass percentage of Na in the total mass of the concentrated solution and the diluted water added.

[0094] The surface tension...

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PUM

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Abstract

The invention relates to a water mist fire extinguishing addictive. It characterizes in that 3.0%-6.0%(by weight) fluorine surfactant, 67.45%-80.25%(by weight) water, 0.25%-0.5%(by weight) triethanal amine ,4.0%-6.5%(by weight) urea, 1.0%-1.5%(by weight) sodium lactate, 1.5%-3.0%(by weight) alkylphenol polyoxyethylene are added to 10.0% to 15.0%(by weight) N-N-dimethylformamide, then PH of which be regulated between 7.5 to 8.5 by acetic acid or sodium hydroxide after it dissolved completely. Filtering the solution to get the concentrated solution of the water mist fire extinguishing addictive of the present invention. Water should be added to dilute the solution to lower the fluorine surfactant content down to 0.2% to 0.8% in use.

Description

Technical field: [0001] The invention belongs to the technical field of fine water mist fire extinguishing, and in particular relates to the composition and preparation method of fine water mist additives. Background technique: [0002] TECHNICALSUPPORT FOR THE STUDY OF DROPLET INTERACTIONS WITH HOTSURFACES, 2000.6.12, see http: / / www.bfrl.nist.gov / 866 / NGP / publications / 2B3 Final Report.pdf ), according to the physical and chemical properties of additives, water mist additives are roughly divided into two categories: [0003] The first category is inorganic salt additives, which mainly contain the following formulations (mass percentage): [0004] (1), 24% LiCl and 76% H 2 o [0005] (2), 5% LiCl; 26% CaCl 2 ;69%H 2 o [0006] (3), 10% Ca(NO 3 ) 2 ; 27% CaCl 2 ;63%H 2 o [0007] (4), 5% FeCl 3 , 29% CaCl 2 , 66%H 2 o [0008] Although such additives can effectively improve the fire extinguishing efficiency of fine water mist, since the inorganic metal salts in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/04
Inventor 廖光煊周晓猛秦俊刘江虹王喜世范维澄陆强厉培德蔡波
Owner UNIV OF SCI & TECH OF CHINA
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