A non-toxic and non-corrosive physical synthetic chemical curing agent gas fire extinguishing agent and preparation process

Abstract

The present invention provides a gas fire extinguishing agent and a preparation process of a non-toxic and non-corrosive physical synthetic chemical curing agent, and relates to the technical field of gas fire extinguishing agents. A gas fire extinguishing agent of a non-toxic and non-corrosive physical synthetic chemical curing agent comprises the following components by weight: 16-24 parts of citric acid, 21-31 parts of carbonate, 20-30 parts of ferrous sulfate heptahydrate, and the carbonate is one or more combinations of sodium bicarbonate, magnesium carbonate and potassium carbonate. The gas fire extinguishing agent of the present invention is convenient and safe to store when not in use, and there is no risk of explosion, and it is convenient to carry; during use, it can be thrown into the flame pile by throwing, and the operation safety is high. At the same time, a large amount of carbon dioxide gas is generated from the flame, and the effect of isolating oxygen is better, so that the fire can be extinguished faster.

Description

Technical Field

[0001] The invention relates to the technical field of gas fire extinguishing agents, in particular to a non-toxic and non-corrosive physical synthetic chemical curing preparation gas fire extinguishing agent and a preparation process thereof. Background Art

[0002] The development and application of fire extinguishing technology plays an extremely important role in controlling and fighting fires. Different fire extinguishing agents have different fire extinguishing mechanisms and are suitable for different types of fires. Gas fire extinguishing agents are a commonly used firefighting equipment that will not leave residues when used to extinguish fires. They are suitable for protecting valuable items such as electronic equipment and archives.

[0003] Gas fire extinguishing is to compress gases that cannot participate in combustion, such as inert gases, in high-pressure steel cylinders, and release the gas when a fire occurs. By reducing the oxygen concentration in the combustion area to below the minimum oxygen concentration required to maintain combustion, when the oxygen concentration is reduced to a certain level, the flame will be extinguished due to lack of sufficient oxygen. However, the gas fire extinguishing agent is compressed in a high-pressure steel cylinder, and the high-pressure cylinder needs to be stored in a well-ventilated place away from fire sources and high temperatures. If the storage environment is not appropriate, the risk of accidents may increase. If the pressure in the high-pressure cylinder exceeds its design limit, it may cause the bottle to rupture or even explode. This situation is very dangerous and may cause serious casualties and property losses. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a non-toxic and non-corrosive physical synthetic chemical curing agent gas fire extinguishing agent and a preparation process, which solves the problem of possible safety accidents in the traditional storage of gas fire extinguishing agents.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical scheme: a non-toxic and non-corrosive physical synthetic chemical curing preparation gas fire extinguishing agent, comprising the following components in parts by weight: 16-24 parts of citric acid, 21-31 parts of carbonate, and 20-30 parts of ferrous sulfate heptahydrate, wherein the carbonate is one or more combinations of sodium bicarbonate, magnesium carbonate and potassium carbonate.

[0008] Preferably, it is composed of the following ingredients in parts by weight: 17 parts of citric acid, 13 parts of sodium bicarbonate, 10 parts of magnesium carbonate, and 22 parts of ferrous sulfate heptahydrate.

[0009] Preferably, it is composed of the following ingredients in parts by weight: 20 parts of citric acid, 26 parts of sodium bicarbonate, and 24 parts of ferrous sulfate heptahydrate.

[0010] Preferably, it is composed of the following ingredients in parts by weight: 24 parts of citric acid, 15 parts of magnesium carbonate, 15 parts of potassium carbonate, and 30 parts of ferrous sulfate heptahydrate.

[0011] Preferably, it is composed of the following ingredients in parts by weight: 25 parts of citric acid, 15 parts of sodium bicarbonate, 15 parts of potassium carbonate, and 29 parts of ferrous sulfate heptahydrate.

[0012] A preparation process of a non-toxic and non-corrosive physical synthetic chemical curing preparation gas fire extinguishing agent comprises the following preparation steps:

[0013] S1. Put citric acid, carbonate, and ferrous sulfate heptahydrate solids into a grinder and grind them into fine powder;

[0014] S2. Use a fine sieve to screen the ground citric acid, carbonate, and ferrous sulfate powders, respectively, to screen out the large particles of the ground citric acid, carbonate, and ferrous sulfate powders, leaving fine citric acid, carbonate, and ferrous sulfate powders;

[0015] S3. According to the formula, the screened citric acid, carbonate, and ferrous sulfate heptahydrate powders were weighed using an electronic scale, and the weighed citric acid, carbonate, and ferrous sulfate heptahydrate powders were placed in separate trays;

[0016] S4. The weighed citric acid, carbonate, and ferrous sulfate heptahydrate powders are separately placed into a plurality of thin plastic bags with small volumes, and the small plastic bags are sealed;

[0017] S5. Evenly mix the sealed small plastic bags containing citric acid, carbonate and ferrous sulfate heptahydrate powder in step 4, put them into an iron box with many small ventilation holes, and then cover the iron box with a lid.

[0018] Working principle: When a small fire occurs, throw an iron box containing a small plastic bag of citric acid, carbonate, and ferrous sulfate heptahydrate powder into the center of the flame. The small plastic bag will melt and burst due to the heat, and the citric acid, carbonate, and ferrous sulfate heptahydrate powder inside it will flow out and mix together. The citric acid and carbonate mixture will react to produce carbon dioxide. At the same time, ferrous sulfate heptahydrate will hydrolyze when heated to produce anhydrous ferrous sulfate and water. Part of the produced water will dissolve the citric acid and carbonate, allowing the citric acid and carbonate to react faster, thereby producing a large amount of carbon dioxide in a short period of time. The large amount of carbon dioxide produced in a short period of time will flow out from the tiny vents of the iron box and expel the external air, thereby rapidly reducing the oxygen content in the air where the flame is located, causing the burning material in the flame to lack oxygen and go out.

[0019] (III) Beneficial effects

[0020] The present invention provides a non-toxic and non-corrosive physical synthetic chemical curing agent and a preparation process for a gas fire extinguishing agent. It has the following beneficial effects:

[0021] 1. The gas fire extinguishing agent of the present invention is convenient and safe to store when not in use, does not cause the risk of explosion, and is convenient to carry.

[0022] 2. During use, it can be thrown into the flame pile, which has high operation safety. At the same time, a large amount of carbon dioxide gas is generated from the flame, which has a better effect of isolating oxygen, so that the fire can be extinguished faster.

[0023] 3. Other solid substances generated in the reaction will remain in the iron box and will not pollute valuable items such as electronic equipment, archival materials, etc. in the flame. DETAILED DESCRIPTION

[0024] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] The embodiment of the present invention provides a non-toxic and non-corrosive physical synthetic chemical curing preparation gas fire extinguishing agent, which is composed of the following components in weight: 17 parts of citric acid, 13 parts of sodium bicarbonate, 10 parts of magnesium carbonate, and 22 parts of ferrous sulfate heptahydrate.

[0027] The method comprises the following preparation steps:

[0028] S1. The citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate heptahydrate solids are placed in a grinder and ground into fine powders;

[0029] S2. Use a fine sieve to screen the ground citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate powders, respectively, and sieve out the large particles of the ground citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate powders, leaving fine citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate powders;

[0030] S3. According to the formula, the screened citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate heptahydrate powders were weighed using an electronic scale, and the weighed citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate heptahydrate powders were placed in separate trays;

[0031] S4. The weighed citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate heptahydrate powders are separately placed into a plurality of thin plastic bags with small volumes, and the small plastic bags are sealed;

[0032] S5. Evenly mix the sealed small plastic bags containing citric acid, sodium bicarbonate, magnesium carbonate and ferrous sulfate heptahydrate powder in step 4, put them into an iron box with many small ventilation holes, and then cover the iron box with a lid.

[0033] After the small plastic bag shrinks and breaks due to heat, citric acid, sodium bicarbonate, magnesium carbonate, and ferrous sulfate heptahydrate powder are mixed together. Citric acid will react with sodium bicarbonate and magnesium carbonate to produce carbon dioxide gas. Ferrous sulfate heptahydrate will decompose into water when heated. With the participation of water, citric acid will react more violently with sodium bicarbonate and magnesium carbonate, producing a large amount of carbon dioxide in a short period of time. A large amount of carbon dioxide will flow out from the tiny vents of the iron box, reducing the oxygen concentration near the fire source, thereby extinguishing the fire.

[0034] Embodiment 2:

[0035] The embodiment of the present invention provides a non-toxic and non-corrosive physical synthetic chemical curing preparation gas fire extinguishing agent, which is composed of the following components in parts by weight: 20 parts of citric acid, 26 parts of sodium bicarbonate, and 24 parts of ferrous sulfate heptahydrate.

[0036] The method comprises the following preparation steps:

[0037] S1. Put citric acid, sodium bicarbonate and ferrous sulfate heptahydrate solids into a grinder and grind them into fine powder;

[0038] S2. Use a fine sieve to screen the ground citric acid, sodium bicarbonate, and ferrous sulfate powders, respectively, and sieve out the large particles of the ground citric acid, sodium bicarbonate, and ferrous sulfate powders, leaving fine citric acid, sodium bicarbonate, and ferrous sulfate powders;

[0039] S3. According to the formula, the screened citric acid, sodium bicarbonate, and ferrous sulfate heptahydrate powders were weighed using an electronic scale, and the weighed citric acid, sodium bicarbonate, and ferrous sulfate heptahydrate powders were placed in separate trays;

[0040] S4. The weighed citric acid, sodium bicarbonate, and ferrous sulfate heptahydrate powders are separately placed into a plurality of thin plastic bags with small volumes, and the small plastic bags are sealed;

[0041] S5. Evenly mix the sealed small plastic bags containing citric acid, sodium bicarbonate and ferrous sulfate heptahydrate powder in step 4, put them into an iron box with many small ventilation holes, and then cover the iron box with a lid.

[0042] When the small plastic bag shrinks and breaks due to heat, the citric acid will come into contact with the sodium bicarbonate and react to produce carbon dioxide gas.

[0043] Embodiment three:

[0044] The embodiment of the present invention provides a non-toxic and non-corrosive physical synthetic chemical curing preparation gas fire extinguishing agent, which is composed of the following components in weight: 24 parts of citric acid, 15 parts of magnesium carbonate, 15 parts of potassium carbonate, and 30 parts of ferrous sulfate heptahydrate.

[0045] The method comprises the following preparation steps:

[0046] S1. Put citric acid, magnesium carbonate, potassium carbonate and ferrous sulfate heptahydrate solids into a grinder and grind them into fine powder;

[0047] S2. Use a fine sieve to screen the ground citric acid, magnesium carbonate, potassium carbonate, and ferrous sulfate powders, respectively, and sieve out the large particles of the ground citric acid, magnesium carbonate, potassium carbonate, and ferrous sulfate powders, leaving fine citric acid, magnesium carbonate, potassium carbonate, and ferrous sulfate powders;

[0048] S3. According to the formula, the screened citric acid, magnesium carbonate, potassium carbonate, and ferrous sulfate heptahydrate powders were weighed using an electronic scale, and the weighed citric acid, magnesium carbonate, potassium carbonate, and ferrous sulfate heptahydrate powders were placed in separate trays;

[0049] S4. The weighed citric acid, magnesium carbonate, potassium carbonate, and ferrous sulfate heptahydrate powders are separately placed into a plurality of thin plastic bags with small volumes, and the small plastic bags are sealed;

[0050] S5. Evenly mix the sealed small plastic bags containing citric acid, magnesium carbonate, potassium carbonate and ferrous sulfate heptahydrate powder in step 4, put them into an iron box with many small ventilation holes, and then cover the iron box with a lid.

[0051] When the small plastic bag shrinks and breaks due to heat, citric acid will come into contact with magnesium carbonate and potassium carbonate and react to produce carbon dioxide gas.

[0052] Embodiment 4:

[0053] The embodiment of the present invention provides a non-toxic and non-corrosive physical synthetic chemical curing preparation gas fire extinguishing agent, which is composed of the following components in weight: 25 parts of citric acid, 15 parts of sodium bicarbonate, 15 parts of potassium carbonate, and 29 parts of ferrous sulfate heptahydrate.

[0054] The method comprises the following preparation steps:

[0055] S1. Put citric acid, sodium bicarbonate, potassium carbonate, and ferrous sulfate heptahydrate solids into a grinder and grind them into fine powder;

[0056] S2. Use a fine sieve to screen the ground citric acid, sodium bicarbonate, potassium carbonate, and ferrous sulfate powders, respectively, and sieve out the large particles of the ground citric acid, sodium bicarbonate, potassium carbonate, and ferrous sulfate powders, leaving fine citric acid, sodium bicarbonate, potassium carbonate, and ferrous sulfate powders;

[0057] S3. According to the formula, the screened citric acid, sodium bicarbonate, potassium carbonate, and ferrous sulfate heptahydrate powders were weighed using an electronic scale, and the weighed citric acid, sodium bicarbonate, potassium carbonate, and ferrous sulfate heptahydrate powders were placed in separate trays;

[0058] S4. The weighed citric acid, sodium bicarbonate, potassium carbonate, and ferrous sulfate heptahydrate powders are separately placed into a plurality of thin plastic bags with small volumes, and the small plastic bags are sealed;

[0059] S5. Evenly mix the sealed small plastic bags containing citric acid, sodium bicarbonate, potassium carbonate and ferrous sulfate heptahydrate powder in step 4, put them into an iron box with many small ventilation holes, and then cover the iron box with a lid.

[0060] When the small plastic bag shrinks and breaks due to heat, the citric acid will come into contact with sodium bicarbonate and potassium carbonate and react to produce carbon dioxide gas.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-toxic, non-corrosive, physically synthesized, chemically solidified gas fire extinguishing agent, characterized in that: The invention comprises the following components in parts by weight: 16-24 parts of citric acid, 21-31 parts of carbonate and 20-30 parts of ferrous sulfate heptahydrate, wherein the carbonate is one or more combinations of sodium bicarbonate, magnesium carbonate and potassium carbonate.

2. The non-toxic and non-corrosive physical synthetic chemical curing agent of claim 1, characterized in that: The invention is composed of the following components in parts by weight: 17 parts of citric acid, 13 parts of sodium bicarbonate, 10 parts of magnesium carbonate and 22 parts of ferrous sulfate heptahydrate.

3. The non-toxic and non-corrosive physical synthetic chemical curing agent of claim 1 is characterized by: The invention is composed of the following components in parts by weight: 20 parts of citric acid, 26 parts of sodium bicarbonate and 24 parts of ferrous sulfate heptahydrate.

4. The non-toxic and non-corrosive physical synthetic chemical curing agent of claim 1 is characterized by: The invention is composed of the following components in parts by weight: 24 parts of citric acid, 15 parts of magnesium carbonate, 15 parts of potassium carbonate and 30 parts of ferrous sulfate heptahydrate.

5. The non-toxic and non-corrosive physical synthetic chemical curing agent of claim 1 is characterized by: The invention is composed of the following components in parts by weight: 25 parts of citric acid, 15 parts of sodium bicarbonate, 15 parts of potassium carbonate and 29 parts of ferrous sulfate heptahydrate.

6. A process for preparing a non-toxic and non-corrosive physical synthetic chemical curing agent gas fire extinguishing agent according to any one of claims 1 to 5, characterized in that: The method comprises the following preparation steps: S1. Put citric acid, carbonate, and ferrous sulfate heptahydrate solids into a grinder and grind them into fine powder; S2. Use a fine sieve to screen the ground citric acid, carbonate, and ferrous sulfate powders, respectively, to screen out the large particles of the ground citric acid, carbonate, and ferrous sulfate powders, leaving fine citric acid, carbonate, and ferrous sulfate powders; S3. According to the formula, the screened citric acid, carbonate, and ferrous sulfate heptahydrate powders were weighed using an electronic scale, and the weighed citric acid, carbonate, and ferrous sulfate heptahydrate powders were placed in separate trays; S4. The weighed citric acid, carbonate, and ferrous sulfate heptahydrate powders are separately placed into a plurality of thin plastic bags with small volumes, and the small plastic bags are sealed; S5. Evenly mix the sealed small plastic bags containing citric acid, carbonate and ferrous sulfate heptahydrate powder in step 4, put them into an iron box with many small ventilation holes, and then cover the iron box with a lid.