Water-based solid-microsystem fire extinguishing agent for extinguishing combustion flame of lithium battery and preparation method thereof

A technology of burning flames and lithium batteries, which is applied in the direction of fire prevention equipment, etc., can solve the problems of rapid re-ignition, fire out of control, etc., and achieve the effect of stable physical and chemical properties

Active Publication Date: 2021-06-15
张平 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the above-mentioned fire extinguishing agents such as water, inert gas and halon may extinguish the lithium battery fire but there is a rapid resurgence, which leads to the fire getting out of control again. Agents and their preparation methods

Method used

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  • Water-based solid-microsystem fire extinguishing agent for extinguishing combustion flame of lithium battery and preparation method thereof
  • Water-based solid-microsystem fire extinguishing agent for extinguishing combustion flame of lithium battery and preparation method thereof
  • Water-based solid-microsystem fire extinguishing agent for extinguishing combustion flame of lithium battery and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] The water-based solid-micro system fire extinguishing agent for extinguishing the combustion flame of lithium batteries comprises the following components in parts by weight:

[0028] In order, add 2 parts of dispersant, 0.2 part of dispersing aid, 0.2 part of polyamide wax conditioner, 0.1 part of bentonite conditioner, 0.5 part of thixotropic thickener, and 0.03 part of preservative in deionized water, and stir well After 10-30 minutes, add 10 parts of raw material powder and tris-HCl solution to adjust the pH to 8.0-8.5. Add enough deionized water, 100 parts in total, and continue stirring for 10-30 minutes to obtain a water-based solid-micro system fire extinguishing agent. The raw material powder is composed of magnesium iron aluminum silicate mineral (vermiculite) powder, magnesium aluminum silicate clay mineral (palygorskite) powder, chemically modified graphite powder, potassium sodium calcium magnesium iron alumina silicon Salt (montmorillonite) powder and wra...

Embodiment 2

[0034] The water-based solid-micro system fire extinguishing agent for extinguishing the combustion flame of lithium batteries comprises the following components in parts by weight:

[0035] Take deionized water, add 3 parts of dispersant, 0.3 part of dispersing aid, 0.2 part of polyamide wax regulator, 0.3 part of bentonite regulator, 0.6 part of thixotropic thickener, 0.05 part of preservative, and 18 parts of raw material powder , Tris-HCl solution to adjust the pH to 8.0-8.5, add enough deionized water, a total of 100 parts (by weight). The raw material powder is composed of magnesium iron aluminum silicate mineral (vermiculite) powder, magnesium aluminum silicate clay mineral (palygorskite) powder, chemically modified graphite powder, potassium sodium calcium magnesium iron alumina silicon Salt (montmorillonite) powder and wrapped sodium bicarbonate powder are prepared in a weight ratio of 9:1:0.7:0.2:0.5. The particle size of the raw material powder is 800 mesh.

[003...

Embodiment 3

[0041] The water-based solid-micro system fire extinguishing agent for extinguishing the combustion flame of lithium batteries comprises the following components in parts by weight:

[0042] Take deionized water, add 4 parts of dispersant, 0.5 part of dispersing aid, 0.2 part of polyamide wax regulator, 0.2 part of bentonite regulator, 0.5 part of thixotropic thickener, 30 parts of raw material powder, 0.08 part of preservative, Adjust the pH of the Tris-HCl solution to 8.0-8.5, add a sufficient amount of deionized water, a total of 100 parts; the raw material powder magnesium iron aluminum silicate mineral (vermiculite) powder, magnesium aluminum silicate Salt clay mineral (palygorskite) powder, chemically modified graphite powder, potassium sodium calcium magnesium iron alumina silicate (montmorillonite) powder and wrapped sodium bicarbonate powder in a weight ratio of 9:1 :0.7:0.2:0.5 formulated. Stirring was continued for 30 minutes to obtain a water-based solid microsyst...

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Abstract

The invention discloses a water-based solid-micro system fire extinguishing agent for extinguishing the burning flame of a lithium battery and a preparation method thereof, which belongs to the field of fire protection and comprises the following components in parts by weight: 10-40 parts of raw material powder, 2-5 parts of dispersant, 0.2-0.5 part of dispersing aid, 0.2-0.3 part of polyamide wax conditioner, 0.1-0.3 part of bentonite conditioner, 0.5-1 part of thixotropic thickener, 0.03-0.08 part of preservative, trishydroxymethylaminomethane. The pH of the HCl solution is adjusted to 8.0-8.5, and deionized water is added, totaling 100 parts by weight; the raw material powder is one or more of mineral powder, graphite powder and wrapped bicarbonate powder. The wrapped bicarbonate powder of the present invention is thermally decomposed after encountering a fire, releasing carbon dioxide and promoting fire extinguishing. Raw material powders such as vermiculite and graphite have a stable structure, have the characteristics of high temperature resistance, strong acid and alkali resistance, and can achieve adhesion to the burning surface and isolation of the flame, and avoid re-ignition.

Description

technical field [0001] The invention belongs to the field of fire protection, and in particular relates to a water-based solid-micro system fire extinguishing agent for extinguishing combustion flames of lithium batteries and a preparation method thereof. Background technique [0002] Electric vehicles are a strategic emerging industry that my country focuses on cultivating, but in the process of application and promotion, a series of fire accidents are not uncommon. The survey found that most of the electric vehicle fires are related to the thermal runaway of the on-board power lithium battery, which is caused by the combustion of the electrolyte caused by the thermal runaway. The combustion of lithium batteries has high combustion temperature, fast combustion speed, large differences in combustion of batteries of different systems, large amounts of toxic and harmful smoke, and the risk of explosion. The resulting fire is difficult to extinguish, etc., which brings great ch...

Claims

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Application Information

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IPC IPC(8): A62D1/00A62D1/06
CPCA62D1/005A62D1/06
Inventor 张平张镰斧冯永岭詹志明王学军
Owner 张平
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