A water-based fire extinguishing agent

A fire-extinguishing agent and water-based technology, which is applied in fire prevention equipment and other directions, can solve the problems of high freezing point, low fire-extinguishing efficiency, and limit the use range of water-based fire-extinguishing agents, and achieve the effect of reducing corrosion, high fire-extinguishing efficiency and improving cooling effect.

Active Publication Date: 2021-07-13
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the fire extinguishing efficiency of the water system fire extinguishing agent produced in the prior art is generally on the low side, and the freezing point is relatively high, which is not suitable for use in the cold northern regions, which limits the scope of use of the water system fire extinguishing agent

Method used

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  • A water-based fire extinguishing agent
  • A water-based fire extinguishing agent
  • A water-based fire extinguishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]Compounding of water-based fire extinguishing agent: Mix 20g of water-in-water polyacrylamide emulsion (its solid content is 20%); 100g of carbonamide; 50g of ammonium dihydrogen phosphate and diammonium hydrogen phosphate (the mass ratio is 2 :1); 1g of sodium gluconate; 829g of water-based medium (that is, a self-made water-based fire extinguishing agent, the specific components are as follows: sodium lauryl sulfate is 20g / L, betaine DSB is 20g / L, AF4018-Z is 4ml / L, polyvinyl alcohol 0.25g / L, ammonium oxalate 20g / L, melamine 20g / L, foam glass 0.10g / L, ammonium oxide 0.12g / L, magnesium hydroxide 0.1g / L, tetrahydrofuran 0.15ml / L, the balance is water) and mix evenly.

[0038] Among them, the preparation of water-in-water polyacrylamide emulsion: 350g of ammonium sulfate, 100ml of dodecyl mercaptan and 900ml of deionized water were successively added into a three-necked flask as a reaction medium, 100g of acrylamide monomer, 80g of 2 -Acrylamide-2-methylpropanesulfonic ...

Embodiment 2～6

[0040] The following table is the concrete charging amount of embodiment 1~6:

[0041]

[0042] The following table is the used material of embodiment 1~6:

[0043]

[0044] Among them, the self-made fire extinguishing agent is a class A water-based fire extinguishing agent made by Nanjing University of Science and Technology. Polyvinyl alcohol is 0.25g / L, ammonium oxalate is 20g / L, melamine is 20g / L, foam glass is 0.10g / L, ammonium oxide is 0.12g / L, magnesium hydroxide is 0.1g / L, tetrahydrofuran is 0.15ml / L, the balance is water; the water-in-water polyacrylamide emulsion is prepared in Example 1, and its solid content is 20%, and the rest of the medicines are commercially available.

[0045] Concrete compounding process is with embodiment 1.

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Abstract

The invention discloses a water system fire extinguishing agent and belongs to the technical field of fire extinguishing agent preparation. It includes: drag reducer, coolant, antifreeze, anti-corrosion agent, and water-based medium, and the above-mentioned components are compounded according to a certain proportion to obtain a water-based fire extinguishing agent. When the water system fire extinguishing agent of the present invention flows in the pipeline, the flow resistance of the water system fire extinguishing agent can be reduced, and the fire can be released faster. When the water system fire extinguishing agent is used for fire extinguishing, the cooling effect of the water system fire extinguishing agent can be improved, the temperature of the fire site can be reduced, and the fire extinguishing efficiency of the fire extinguishing agent can be higher. The water-based fire extinguishing agent has a certain anti-corrosion performance, so as to reduce the corrosion effect of the water-based fire extinguishing agent on the water tank. It has certain antifreeze performance and is suitable for use in northern cold regions.

Description

technical field [0001] The invention belongs to the technical field of fire extinguishing agent preparation, in particular to a water-based fire extinguishing agent. Background technique [0002] Water-based fire extinguishing agent is one of the most commonly used fire extinguishing agents in the field of fire protection. It is a kind of liquid fire extinguishing agent made of water and various additives. It is generally used to extinguish fire in the form of liquid water or foam. It can be used to extinguish Class A fires (solid substance fires) and Class B fires (liquid substance fires). With the emergence of various fires, water-based fire extinguishers are also constantly improving. Water-based fire extinguishing agents and supporting equipment that can be used to extinguish various fires have been developed to effectively control fires and reduce losses. [0003] When the water-based fire extinguishing agent is stored in the fire extinguishing water tank for fire prev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/00
CPCA62D1/0035A62D1/0042
Inventor 王俊潘仁明蔺向阳颜明强潘葆
Owner NANJING UNIV OF SCI & TECH
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