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Microcapsule fire extinguishing agent

A technology of microcapsules and fire extinguishing agent, applied in the field of fire extinguishing, to achieve the effect of improving fire extinguishing effect, reducing dosage, and wide application range

Active Publication Date: 2019-09-03
北京安科控源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each of these fire extinguishing agents has its specific use occasions, and its fire extinguishing efficiency needs to be improved. The existing fire extinguishing agents cannot fully meet the needs of industry and public safety.

Method used

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  • Microcapsule fire extinguishing agent

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The preparation process of microcapsule fire extinguishing agent is as follows:

[0033] (1) Weighing 82-95 g of potassium salt solution with a concentration of 0.5%-50%, 2-15 g of capsule shell material, and 0-5 g of additives;

[0034] (2) Heating the aqueous potassium salt solution to 60-95°C, adding 0-5g of the additive, and stirring until completely dissolved;

[0035] (3) Put the mixed liquid that has been stirred until completely dissolved in a high-speed stirring container, add the capsule shell material, set the rotation speed at 17000-28000r / min, and stir for 15-35s;

[0036] (4) Cool the stirred product at room temperature for 60-150 minutes to obtain the microcapsule fire extinguishing agent.

[0037] The microcapsule fire extinguishing agent of the present invention can also be prepared by a high-speed shearing method, other conventional soft capsule preparation methods, and hollow microsphere preparation methods.

Embodiment 1

[0039] The microcapsule fire extinguishing agent of this embodiment is formed by mixing water, potassium acetate, hydrogen-containing methyl silicone oil, gellan gum / carrageenan, and granular silicon dioxide. Calculated by total weight, the weight percentage of each part is:

[0040]

[0041]

[0042] Preparation method: First, weigh 31g of potassium acetate and dissolve it in 63ml of hot water at 60°C. After the potassium acetate is completely dissolved, add 1g of hydrogen-containing methyl silicone oil and 0.5g of gellan gum / carrageenan, mix well, and place under high-speed stirring Add 4.5g of granular silicon dioxide to the container, stir at a high speed of 22000r / min for 25s, and cool the stirred product at room temperature for 60min to obtain a microcapsule fire extinguishing agent.

[0043] The fire extinguishing efficiency of the fire extinguishing agent of this embodiment is 10 times of the fire extinguishing efficiency of "GB4066.1--2004 dry powder fire extingu...

Embodiment 2

[0045] The microcapsule fire extinguishing agent of this embodiment is mixed by the mixture of water, potassium oxalate and potassium sorbate, additive phenolic resin, gelatin, granular silicon dioxide, calculated by total weight, the weight percentage of each part is:

[0046]

[0047] The preparation method is similar to that of Example 1, and the temperature of the hot water is raised to 80°C.

[0048] The fire extinguishing efficiency of the fire extinguishing agent of this embodiment is 10 times of the fire extinguishing efficiency of "GB4066.1--2004 dry powder fire extinguishing agent, the first part BC dry powder fire extinguishing agent".

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Abstract

The invention discloses a microcapsule fire-extinguishing agent. The microcapsule fire-extinguishing agent is composed of, by weight percentage, 82%-95% of a capsule inner core main material, 0%-5% of an additive and 2%-15% of a capsule shell, wherein the capsule inner core main material is an aqueous solution of water-soluble inorganic alkali metal potassium salt and / or water-soluble organic potassium salt; the additive is a mixture including one or more of epoxy resin, phenolic resin, sodium alkyl benzene sulfonate, sodium acrylate, silicone oil, fatty alcohol polyoxyethylene ether sodium sulfate, fatty alcohol polyoxyethylene ether ammonium sulfate, sodium lauryl sulfate and fatty alcohol polyoxyethylene ether; and the capsule shell is made of a colloid shell material. The microcapsule fire-extinguishing agent is safe to use, clean, environmentally-friendly, high in fire-extinguishing efficiency and wide in application range.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing, in particular to a microcapsule fire extinguishing agent for liquid gas fire extinguishing. Background technique [0002] Common fire extinguishing materials include dry powder fire extinguishing agents: such as ammonium phosphate dry powder, sodium bicarbonate dry powder, Class D dry powder, and ultrafine dry powder with smaller particle size, etc.; liquid fire extinguishing agents with water or other liquids as the main body: such as water, aqueous solution , foam, biological protein fire extinguishing agent and ultra-fine water mist fire extinguishing agent, etc.; gas fire extinguishing agent: such as CO 2 , N 2 , IG541 and other inert gas fire extinguishing agents, heptafluoropropane fire extinguishing agents and hot aerosol fire extinguishing agents that have developed rapidly in recent years. These fire extinguishing agents each have their specific use occasions, and their fire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/00
Inventor 杜志明刘玲徐方荣段会强
Owner 北京安科控源科技有限公司
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