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Low-temperature working condition fire extinguishing block

A working condition, low temperature technology, applied in the field of low temperature working condition fire extinguishing block, to achieve the effect of good fire extinguishing performance, excellent insulation, and reducing the possibility of secondary combustion

Inactive Publication Date: 2021-07-20
陕西华数云智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the fire extinguishing agent in the prior art cannot simultaneously meet the conditions of good insulation, low temperature working conditions, non-corrosiveness, and space saving

Method used

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  • Low-temperature working condition fire extinguishing block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The fire extinguishing block weighs each component according to the following parts by mass:

[0039]70 parts of calcium perchlorate, 15 parts of dipolycyanamide, 3 parts of hexamethylenetetramine, 4 parts of magnesium oxalate, 1 part of magnesium powder, 3 parts of sodium bicarbonate, 1 part of sodium citrate, 4 parts of polyurethane resin .

[0040] Weigh 15g of the formula described in Example 1, and carry out a fire extinguishing experiment in a test box with a volume of 0.35m3. The fire extinguishing time is 29s, and the fire extinguishing efficiency is 42.86g / m3. Corrosion test was carried out on the combustion products, the weight loss rate of copper sheet was 0.052%, the weight loss rate of aluminum sheet was 0.085%, and the insulation test result was 126MΩ

Embodiment 2

[0042] The fire extinguishing block weighs each component according to the following parts by mass:

[0043] 64 parts of calcium perchlorate, 25 parts of dicyandiamide, 1 part of hexamethylenetetramine, 1 part of magnesium oxalate, 1 part of magnesium powder, 4 parts of sodium bicarbonate, 1 part of sodium citrate, 3 parts of polyurethane resin.

[0044] Take by weighing 15g of the formulation described in Example 2, and carry out a fire extinguishing experiment in a test box with a volume of 0.35m3. The fire extinguishing time is 26s, and the fire extinguishing efficiency is 42.86g / m3. The corrosion test was carried out on the combustion products, the weight loss rate of the copper sheet was 0.013%, the weight loss rate of the aluminum sheet was 0.062%, and the insulation test result was 129MΩ.

Embodiment 3

[0046] The fire extinguishing block weighs each component according to the following parts by mass:

[0047] Calcium perchlorate 65 parts, dipolycyanamide 20 parts, hexamethylenetetramine 4 parts, magnesium oxalate 2 parts, magnesium powder 2 parts, sodium bicarbonate 3 parts, sodium citrate 1 part, polyurethane resin 3 parts.

[0048] Take by weighing 15g of the formulation described in Example 3, and carry out a fire extinguishing experiment in a test box with a volume of 0.35m3. The fire extinguishing time is 33s, and the fire extinguishing efficiency is 42.86g / m3. Corrosion test was carried out on the combustion products, the weight loss rate of copper sheet was 0.076%, the weight loss rate of aluminum sheet was 0.173%, and the insulation test result was 130MΩ

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Abstract

The invention discloses a low-temperature working condition fire extinguishing block, and relates to the field of fire fighting. The fire extinguishing block comprises the following fire extinguishing components by mass: 60-75 parts of an oxidizing agent, 15-25 parts of a reducing agent, 6-16 parts of an adjusting auxiliary agent, and 3-5 parts of an adhesive, wherein the oxidizing agent comprises calcium perchlorate, the reducing agent comprises dicyandiamide, and the adjusting auxiliary agent comprises magnesium oxalate and magnesium powder. The fire extinguishing block provided by the invention has the advantages of high insulativity, cleanliness, low-temperature working condition, no corrosion and space saving, and can be used for long-term loaded electrical equipment cabinets such as power distribution cabinets, electrical equipment control cabinets, network communication cabinets and charging piles and other relatively closed spaces with fire danger hidden dangers.

Description

technical field [0001] The invention relates to the field of fire extinguishing and fire fighting, in particular to a fire extinguishing block under low temperature working conditions. Background technique [0002] The prior art discloses a variety of fire extinguishing agents, which typically include the following three: [0003] The first is perfluorohexanone fire extinguishing agent, perfluorohexanone is liquid at normal temperature, because its vaporization heat is only 1 / 25 of that of water, and its vapor pressure is 25 times that of water, these properties make it easy to vaporize and use It exists in a gaseous state, and it mainly relies on heat absorption to achieve the effect of fire extinguishing. Perfluorohexanone is a liquid at normal temperature and is not a dangerous substance. It can be safely stored and transported (including air transport) in a wide temperature range using ordinary containers under normal pressure, unlike other halon substitutes It needs a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00A62D1/06
CPCA62D1/0007A62D1/06
Inventor 奚巍原杜慧丽奚也珣
Owner 陕西华数云智能科技有限公司
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