Novel water mist additive and its preparation method

A technology of additives and fine water mist, applied in fire protection equipment and other directions, can solve the problems of pollution and low fire extinguishing efficiency of fire extinguishing agents, and achieve the effect of reducing the composition of additives, enhancing the effect of oxygen and temperature insulation, and stabilizing the additives.

Inactive Publication Date: 2012-09-12
SUZHOU INST FOR ADVANCED STUDY USTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of fine water mist additive and its preparation method which can overcome the shortcomings of low fire extinguishing efficiency and serious pollution of existing fire extinguishing agents

Method used

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  • Novel water mist additive and its preparation method
  • Novel water mist additive and its preparation method
  • Novel water mist additive and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The multi-component additive in the invention is configured according to the following formula:

[0022]

[0023] The preparation process is as follows: add FC-4 accounting for 2% of the additive composition into water accounting for 88.0% of the total mass of the solution, and slowly stir at 40°C for 10 minutes; under the condition of slow stirring, sequentially add sodium lactate, Potassium carbonate accounting for 5.0% of the total mass of the solution and urea accounting for 4.0% of the total mass of the solution. After the above solution is completely dissolved and clarified. The solution obtained by filtering is the multi-component fine water mist additive of the present invention.

[0024] Add the additive to pure water for dilution so that the concentration of the alkali metal salt therein becomes 1.0%. Then add it to the fine water mist storage tank for fire extinguishing performance test.

[0025] Through the fire extinguishing test of diesel fire and ga...

Embodiment 2

[0029] The multi-component additive in the invention is configured according to the following formula:

[0030]

[0031] The configuration process is the same as example 1

[0032] In the fire extinguishing process, the test method is the same as that of Example 1

[0033] Relationship between additives and extinguishing time of diesel and gasoline fires under different pressures

[0034]

[0035] Find out from example result, under different pressure, adopt this water mist fire extinguishing efficiency of the formula of the present invention to be 2~5 times of pure fine water mist, the effect is more obvious with the smaller pressure. Water mist containing additives is more effective in extinguishing diesel fires than gasoline fires.

[0036] The following table shows the influence of the fine water mist containing additives on the extinguishing time of diesel fire when sodium ions and potassium ions are added separately to the additives at different concentrations. ...

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PUM

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Abstract

The invention discloses a novel water mist additive and is characterized in that the water mist additive is composed of a fluorinated surfactant, alkali metal salt, a heat-sensitive material and water according to additive mechanism. The novel water mist additive has excellent fire extinguishing performance and causes no pollution to the scene. In addition, each component used is harmless to human body. In comparison with present preparation methods, the preparation method provided by the invention has the following advantages: the preparation can be completed through physical mixing of each component and the additive is stable; there is no special requirement on preparation, transportation and production of the additive; and the cost is low.

Description

technical field [0001] The invention relates to the technical field of fine water mist fire extinguishing, and relates to a novel fine water mist additive and a preparation method thereof. Background technique [0002] As a "clean, efficient, and environmentally friendly" new generation of "halon" substitute products, water mist fire extinguishing technology has gradually entered the application stage. However, the fire extinguishing mechanism of fine water mist mainly extinguishes fire through the physical action of oxygen isolation and cooling on the fuel surface, so the fire extinguishing performance is lower than that of "halon" and other chemical fire extinguishing media. Adding additives to fine water mist can greatly improve the fire extinguishing efficiency, and domestic and foreign fire science circles have regarded additive-containing fine water mist as a new content of fire extinguishing research technology. According to the different functions of water mist addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/08
Inventor 纪欢乐肖修昆张青松周晓猛廖光煊
Owner SUZHOU INST FOR ADVANCED STUDY USTC
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