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Preparation method of lithium battery fire gel dry water fire extinguishing agent

A fire extinguishing agent, lithium battery technology, applied in fire protection equipment and other directions, can solve the problem of unable to prevent the re-ignition of lithium battery fire

Inactive Publication Date: 2021-07-06
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As lithium battery fires create a chain reaction due to thermal runaway, as each battery cell in turn ruptures and releases its contents, a recurring flame is created, accompanied by a continuous release of heat and combustible gases, traditional Extinguishing agents are currently unable to prevent the resurgence of lithium battery fires

Method used

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  • Preparation method of lithium battery fire gel dry water fire extinguishing agent
  • Preparation method of lithium battery fire gel dry water fire extinguishing agent
  • Preparation method of lithium battery fire gel dry water fire extinguishing agent

Examples

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Effect test

Embodiment 1

[0026] A kind of lithium battery fire gel dry water fire extinguishing agent and preparation method thereof, wherein each raw material composition is measured by weight: gellan gum, gelatin, carrageenan, agar, polyvinyl alcohol, water glass solution (modulus 2.8, concentration 35wt %), hydrophobic silica (specific surface area is 300m 2 / g) and water in parts by weight: 3 parts of gellan gum, 3 parts of gelatin, 3 parts of carrageenan, 6 parts of agar, 25 parts of polyvinyl alcohol, 1500 parts of water glass solution, 1000 parts of hydrophobic silica and deionized 7460 parts of water, the total weight part is 10000.

[0027] A kind of lithium battery fire gel dry water fire extinguishing agent and preparation method thereof, its preparation method comprises the following steps, each raw material composition used in the following steps is by weight:

[0028] (1) 3 parts of gellan gum (Yuan Ye Biology, S24793), 3 parts of gelatin (Aladdin, C108396), 3 parts of carrageenan (Alad...

Embodiment 2

[0034] A kind of lithium battery fire gel dry water fire extinguishing agent and preparation method thereof, wherein each raw material composition is measured by weight: gellan gum, gelatin, carrageenan, agar, polyvinyl alcohol, water glass solution (modulus 2.5, concentration 40wt %), hydrophobic silica (specific surface area is 200m 2 / g) and deionized water in parts by weight: 1 part of gellan gum, 3 parts of gelatin, 1 part of carrageenan, 5 parts of agar, 30 parts of polyvinyl alcohol, 1200 parts of water glass solution, 1000 parts of hydrophobic silica and 7760 parts of deionized water, the total weight part is 10000.

[0035] A kind of lithium battery fire gel dry water fire extinguishing agent and preparation method thereof, its preparation method comprises the following steps, each raw material composition used in the following steps is by weight:

[0036] (1) Mix 1 part of gellan gum (Yuan Ye Biological, S24793), 3 parts of gelatin (Aladdin, C108396), 1 part of carr...

Embodiment 3

[0042] A lithium battery fire gel dry water fire extinguishing agent and a preparation method thereof, wherein the raw material components are in parts by weight: gellan gum, gelatin, carrageenan, agar, polyvinyl alcohol, water glass solution, hydrophobic silicon dioxide and Ionized water in parts by weight: 2 parts of gellan gum, 1 part of gelatin, 5 parts of carrageenan, 2 parts of agar, 30 parts of polyvinyl alcohol, 1000 parts of water glass solution (modulus 2.5, concentration 40wt%), hydrophobic dioxide (Specific surface area is 200m 2 / g) 1000 parts of silicon and 7960 parts of deionized water, the total weight part is 10000.

[0043] A lithium battery fire gel dry water fire extinguishing agent and a preparation method thereof, the preparation method comprising the following steps, each raw material used in the following steps is calculated in parts by weight:

[0044] (1) 2 parts of gellan gum (Yuan Ye Biological, S24793), 1 part of gelatin (Aladdin, C108396), 5 part...

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Abstract

The invention provides a preparation method of a lithium battery fire gel dry water fire extinguishing agent. The preparation method comprises the steps of adding gellan gum, gelatin, carrageenan, agar and polyvinyl alcohol into deionized water, and stirring to obtain a mixed sol solution; uniformly mixing the mixed sol solution with a water glass solution; slowly dropwise adding a concentrated strong acid solution into the uniformly-mixed mixed solution until the pH value reaches 7 to 9 to form hydrogel; and crushing the hydrogel, adding the hydrophobic silicon dioxide and the crushed hydrogel into a stirrer to be stirred to obtain the gel dry water fire extinguishing agent. The gel dry water fire extinguishing agent is good in stability and convenient to store and transport; the flowability, dispersity and cooling performance are good, and rapid fire extinguishing and continuous cooling are facilitated; and the fire extinguishing agent is non-toxic, harmless, free of secondary pollution, non-conductive, easy to clean after fire extinguishing, and beneficial for inhibiting reburning of a lithium battery fire.

Description

technical field [0001] The invention belongs to the technical field of fire materials, and in particular relates to a preparation method of a lithium battery fire gel dry water fire extinguishing agent. Background technique [0002] With the global warming of the earth and the application and promotion of new clean energy, lithium batteries have attracted more and more attention due to their advantages such as long life, high energy density, and stable performance. Lithium batteries are widely used in energy storage systems such as water power, fire power, wind power, and solar power, as well as power tools, electric vehicles, military equipment, and other fields. However, with the extensive use of lithium batteries, related fire and explosion accidents also follow. [0003] The fire extinguishing principle of the existing fire extinguishing agent is mainly one or a combination of lowering the temperature, diluting oxygen, and inhibiting the chemical reaction in the combust...

Claims

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Application Information

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IPC IPC(8): A62D1/00
CPCA62D1/0064
Inventor 张和平张忠心付阳阳薛峰闫明远
Owner UNIV OF SCI & TECH OF CHINA
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