Water-based extinguishing agent and preparation method thereof

A technology of fire extinguishing agent and water system, applied in fire protection equipment and other directions, can solve problems such as insufficient fire extinguishing performance, and achieve the effects of inhibiting heat transfer, increasing solution viscosity, and improving fire extinguishing effect.

Active Publication Date: 2020-07-28
北京凌天智能装备集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: although by adjusting the ratio of ammonium sulfate and urea, an en

Method used

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  • Water-based extinguishing agent and preparation method thereof
  • Water-based extinguishing agent and preparation method thereof
  • Water-based extinguishing agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0050] The invention discloses a water-based fire extinguishing agent and a preparation method thereof. The components and the preparation method are as follows:

[0051] S1. Use 30% NaOH solution to adjust the pH value of the aqueous solution to 8, then add sodium lauroyl hydroxymethylethanesulfonate, and stir for 5 minutes; Add it dropwise to sodium lauroyl hydroxymethylethanesulfonate at a speed of 100%. After all the drops are completed, stir fully for 4 minutes; then add lignin, pentaerythritol triallyl ether and polyacrylamide in sequence, and stir fully for 13 minutes between additions. Dissolve the material evenly, keep stirring during the feeding process, and finally stir for 16 minutes to obtain a uniform initial mixture;

[0052] S2. Keep the water temperature of the water bath at 48°C. Under stirring conditions, gradually add hydrocarbon surfactants, fluorocarbon surfactants, ethylene glycol, foaming agents, flame retardants, For preservatives and anti-corrosion a...

Embodiment 2

[0055] The invention discloses a water-based fire extinguishing agent and a preparation method thereof. The components and the preparation method are as follows:

[0056] S1. Use 30% NaOH solution to adjust the pH value of the aqueous solution to 8, then add sodium lauroyl hydroxymethylethanesulfonate, and stir for 3 minutes; Add it dropwise to sodium lauroyl hydroxymethylethanesulfonate at a high speed, and then fully stir for 3 minutes after all the drops are completed; then add lignin, pentaerythritol triallyl ether and polyacrylamide in sequence, and fully stir for 10 minutes between additions. Dissolve the material evenly, keep stirring during the feeding process, and finally stir for 15 minutes to obtain a uniform initial mixture;

[0057] S2. Keep the water temperature of the water bath at 45°C. Under stirring conditions, gradually add hydrocarbon surfactants, fluorocarbon surfactants, ethylene glycol, foaming agents, flame retardants, For preservatives and anti-corros...

Embodiment 3

[0060] The invention discloses a water-based fire extinguishing agent and a preparation method thereof. The components and the preparation method are as follows:

[0061] S1. Use 30% NaOH solution to adjust the pH value of the aqueous solution to 9, then add sodium lauroyl hydroxymethylethanesulfonate, and stir for 5 minutes; Add it dropwise to sodium lauroyl hydroxymethylethanesulfonate at a high speed, and then fully stir for 5 minutes after all the drops are completed; then add lignin, pentaerythritol triallyl ether and polyacrylamide in sequence, and fully stir for 15 minutes between additions. Dissolve the material evenly, keep stirring during the feeding process, and finally stir for 20 minutes to obtain a uniform initial mixture;

[0062] S2. Keep the water temperature of the water bath at 50°C. Under stirring conditions, gradually add hydrocarbon surfactants, fluorocarbon surfactants, ethylene glycol, foaming agents, flame retardants, For preservatives and anti-corros...

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Abstract

The invention relates to the technical field of fire extinguishing agents, and discloses a water-based extinguishing agent, which is prepared from the following components in parts by weight 100 to 120 parts of deionized water, 5 to 10 parts of sodium lauroyl hydroxymethyl ethanesulfonate, 2 to 3 parts of lignin, 1 to 2 parts of a flame retardant, 20 to 30 parts of ethylene glycol, 0.3 to 0.8 partof a foaming agent, 0.3 to 0.6 part of a hydrocarbon surfactant, 0.3 to 0.6 part of a fluorocarbon surfactant, 0.3 to 0.4 part of a preservative and 0.4 to 0.5 part of an anti-corrosion agent. The water-based extinguishing agent has the following advantages and effects that the sodium lauroyl hydroxymethyl ethanesulfonate, the surfactant and the water are mixed to obtain a solution with good foam performances, so heat transfer is effectively inhibited and oxygen is isolated, the compatibility of the lignin with the three-dimensional network structure and the sodium lauroyl hydroxymethyl ethanesulfonate polar group is improved through the interaction between the lignin and the sodium lauroyl hydroxymethyl ethanesulfonate polar group, the surface density of the foam is increased, and the foam is stable and not prone to breakage. By adding ethylene glycol and auxiliary reagents, the comprehensive performance of the water-based extinguishing agent is further improved, and the extinguishing agent with better fire extinguishing performances and a longer service life is obtained.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing agents, in particular to a water-based fire extinguishing agent and a preparation method thereof. Background technique [0002] The fire extinguishing agent can effectively destroy the burning conditions and stop the burning. The fire extinguishing mechanism of the fire extinguishing agent is mainly cooling, suffocation, isolation and chemical suppression; at present, most of the fire extinguishing agents produced in the Chinese market are common fire extinguishing agents such as BC, ABC dry powder, aerosol, ultrafine dry powder, light water foam, protein and fluoroprotein. agent. The fire extinguishing performance of the above products is small, the fire extinguishing target is single, the anti-resurgence performance is weak, and it cannot extinguish several special fires at the same time, and is limited by the use temperature. Water-based fire extinguishing agent is another new type...

Claims

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Application Information

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IPC IPC(8): A62D1/00A62D1/02A62D1/04
CPCA62D1/0042A62D1/0071
Inventor 常善强朱高强常建金常伟
Owner 北京凌天智能装备集团股份有限公司
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