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Efficient composite fire extinguishing agent and preparation method thereof

A kind of fire extinguishing agent and high-efficiency technology, applied in the direction of fire prevention equipment, etc., can solve the problems of danger, failure to solve heptafluoropropane, loss of consciousness, etc., reduce the harm of human body and environment, improve the potential value of greenhouse effect and reduce the effect of corrosion

Active Publication Date: 2020-01-03
JIUJIANG CSSC CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent combines the physical and chemical fire extinguishing advantages of heptafluoropropane and dry ice, but this patent does not solve the problem that heptafluoropropane will produce HF during the fire extinguishing process; and it uses dry ice, which vaporizes into carbon dioxide, which will not only produce a greenhouse effect; Moreover, carbon dioxide is a moderately toxic substance. When the concentration of carbon dioxide in the air reaches 2%, it will make people feel unpleasant; if the concentration reaches 7-9%, it will cause dyspnea, vomiting, numbness, and confusion; When it reaches 10%, people will lose consciousness if they stay in this environment for one minute, so there is a certain danger when using it

Method used

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  • Efficient composite fire extinguishing agent and preparation method thereof
  • Efficient composite fire extinguishing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The fire extinguishing agent in this embodiment is made of the raw materials of following weight: 28kg of heptafluoropropane, 40kg of 1,1,2,2,3,3,4-heptafluorocyclopentane, 8kg of liquid nitrogen, 12kg of ammonium bicarbonate, calcium carbonate 5kg, potassium sulfate 3kg, talcum powder 6kg, diatomaceous earth 5kg.

[0044] The preparation method is as follows:

[0045] (1) Take the raw materials of the above weight;

[0046] (2) Grind ammonium bicarbonate, calcium carbonate, potassium sulfate, talcum powder, and diatomaceous earth into fine powder respectively, and sieve to obtain ammonium bicarbonate with a particle size of 3-5 μm and carbonic acid with a particle size of 0.3-0.6 mm. Calcium, potassium sulfate with a particle size of 0.1-0.5 mm, talcum powder with a particle size of 0.3-0.5 mm, diatomite with a particle size of 0.3-0.5 mm;

[0047] (3) Mix talcum powder, diatomaceous earth and calcium carbonate uniformly; Mix ammonium bicarbonate and potassium sulfat...

Embodiment 2

[0051] The fire extinguishing agent in this embodiment is made of the raw materials of following weight: 30kg of heptafluoropropane, 42kg of 1,1,2,2,3,3,4-heptafluorocyclopentane, 7kg of liquid nitrogen, 10kg of ammonium bicarbonate, calcium carbonate 4kg, potassium sulfate 2.5kg, talcum powder 5kg, diatomaceous earth 4kg.

[0052] The preparation method is the same as in Example 1.

Embodiment 3

[0054] The fire extinguishing agent in this embodiment is made of the raw materials of following weight: 32kg of heptafluoropropane, 44kg of 1,1,2,2,3,3,4-heptafluorocyclopentane, 6kg of liquid nitrogen, 9kg of ammonium bicarbonate, calcium carbonate 3kg, potassium sulfate 2kg, talcum powder 4kg, diatomaceous earth 3kg.

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Abstract

The invention discloses an efficient composite fire extinguishing agent and a preparation method thereof, and relates to the technical field of firefighting. The fire extinguishing agent comprises, byweight, 28-36 parts of heptafluoropropane, 40-48 parts of 1,1,2,2,3,3,4-heptafluorocyclopentane, 4-8 parts of liquid nitrogen, 6-12 parts of ammonium bicarbonate, 1-5 parts of calcium carbonate, 1-3parts of potassium sulfate, 2-6 parts of talcum powder and 1-5 parts of diatomite. The fire extinguishing agent has the advantages of combination of the fire extinguishing advantages of several physical and chemical fire extinguishing agents, improved fire extinguishing efficiency, low corrosivity, long atmospheric survival time and low greenhouse effect potential value.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a high-efficiency composite fire extinguishing agent and a preparation method thereof. Background technique [0002] "Halon" fire extinguishing agent (such as Halon1301, Halon1211) used to occupy a dominant position in the fire extinguishing medium market due to its low toxicity, high fire extinguishing efficiency, and excellent performance such as non-conductivity. However, since the 1980s, scientists studying the environment have gradually discovered that the "halon" fire extinguishing medium has a serious destructive effect on the atmospheric ozone layer, so the United Nations has imposed strict restrictions on its production and use through a series of treaties. As an influential big country, my country has completely eliminated the use of Halon1211 in the civilian field in 2005, and completely eliminated the use of Halon1301 in the civilian field in 2010. [0003] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/06
CPCA62D1/005A62D1/06
Inventor 韩亚军黄志翔张兰兰马伟伟黄彩刘贤林
Owner JIUJIANG CSSC CHEM TECH
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