Self-igniting fire extinguishing agent and use thereof

Abstract

The application provides a self-igniting fire extinguishing agent and application thereof, and has the characteristics that the self-igniting fire extinguishing agent comprises the following raw material components in parts by weight: 50-60 parts of potassium nitrate, 5-10 parts of strontium nitrate, 5-10 parts of 5-amino tetrazole, 5-10 parts of azodicarbonamide, 5-10 parts of dicyandiamide, 5-10 parts of melamine, 5-10 parts of phenolic resin, 5-10 parts of shellac resin, 5-10 parts of potassium bicarbonate, 1-5 parts of nitrocellulose and 1-10 parts of vermiculite powder. The self-igniting fire extinguishing agent is applied to fire extinguishing products such as fire extinguishing ropes and fire extinguishing sheets, and has the characteristics of large fire extinguishing range, fast ignition, low-temperature ignition (about 180 DEG C), complete reaction, low turbidity of fire extinguishing gas, low cost, passive temperature-sensing multiple fire extinguishing and the like.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing materials, specifically to a self-igniting fire extinguishing agent and its application. Background Technology

[0002] Perfluorohexanone microcapsule fire extinguishing patches and aerosol fire extinguishers are common fire extinguishing products on the market. However, these fire extinguishing products all have the drawbacks of short effective distance and limited sensing range.

[0003] In light of this, South Korea's Sfex and Russia's Actok have both launched rope-shaped fire extinguishing products. These products fill the inside of the fire extinguishing rope with perfluorohexanone capsules and other fire extinguishing materials, greatly increasing both the fire detection range and the amount of fire extinguishing material. Furthermore, rope-shaped fire extinguishing products offer the advantages of easy installation and the ability to be arranged in a serpentine pattern within control cabinets.

[0004] However, existing rope-shaped fire extinguishing products have the following problems:

[0005] (1) The reaction starts slowly; when exposed to an open flame, it takes at least 35 seconds to ignite.

[0006] (2) Problem of incomplete reaction: After the reaction, unreacted particles are often found as residue.

[0007] (3) The extinguishing gas is turbid and not environmentally friendly.

[0008] Therefore, there is an urgent need to develop new fire extinguishing agent materials. Summary of the Invention

[0009] This invention was made to solve the above-mentioned problems, and its purpose is to provide a self-igniting fire extinguishing agent and its application.

[0010] This invention provides a self-igniting fire extinguishing agent, characterized by comprising the following raw material components in parts by weight: 50-60 parts potassium nitrate, 5-10 parts strontium nitrate, 5-10 parts 5-aminotetrazole, 5-10 parts azodicarbonamide, 5-10 parts dicyandiamide, 5-10 parts melamine, 5-10 parts phenolic resin, 5-10 parts shellac resin, 5-10 parts potassium bicarbonate, 1-5 parts nitrocellulose, and 1-10 parts vermiculite powder.

[0011] The present invention also provides an application of a self-igniting extinguishing agent in a fire extinguishing rope, characterized in that the fire extinguishing rope comprises a hollow fire extinguishing rope body; and the aforementioned self-igniting extinguishing agent is filled inside the fire extinguishing rope body.

[0012] In the application of the self-igniting fire extinguishing agent provided by the present invention in fire extinguishing ropes, it may also have the following characteristics: wherein the self-igniting fire extinguishing agent is a rapid-ignition type, comprising the following raw material components in parts by weight: 50 parts potassium nitrate, 10 parts strontium nitrate, 5 parts 5-aminotetrazole, 6 parts azodicarbonamide, 5 parts dicyandiamide, 5 parts melamine, 5 parts phenolic resin, 5 parts shellac resin, 10 parts potassium bicarbonate, and 4 parts nitrocellulose.

[0013] In the application of the self-igniting fire extinguishing agent provided by the present invention in fire extinguishing ropes, it may also have the following characteristics: wherein the self-igniting fire extinguishing agent is a slow-ignition type, comprising the following raw material components in parts by weight: 50 parts potassium nitrate, 10 parts strontium nitrate, 5-10 parts 5-aminotetrazole, 5 parts azodicarbonamide, 5 parts dicyandiamide, 9 parts melamine, 5 parts phenolic resin, 5 parts shellac resin, 5-10 parts potassium bicarbonate, and 2 parts nitrocellulose.

[0014] In the application of the self-igniting fire extinguishing agent provided by the present invention in fire extinguishing ropes, it may also have the following characteristics: the main body of the fire extinguishing rope is made of glass fiber through longitudinal and transverse weaving, and is formed after being impregnated with glue and air-dried and cured.

[0015] The present invention also provides an application of a self-igniting fire extinguishing agent in fire extinguishing discs, characterized by comprising the above-mentioned self-igniting fire extinguishing agent.

[0016] In the application of the self-igniting fire extinguishing agent provided by the present invention in fire extinguishing discs, it may also have the following characteristics: wherein, after mixing the various raw material components of the self-igniting fire extinguishing agent, it is pressed into a disc shape, and a double-sided adhesive is attached to one side to obtain a fire extinguishing disc; or after mixing the various raw material components of the self-igniting fire extinguishing agent, it is pressed into a tin box coated with pressure-sensitive adhesive to obtain a fire extinguishing disc; or after mixing the various raw material components of the self-igniting fire extinguishing agent, it is wrapped with fiberglass cloth, the edges are edged with silicone rubber, and the surface is coated with polyurea to obtain a fire extinguishing disc.

[0017] In the application of the self-igniting fire extinguishing agent provided by the present invention in fire extinguishing pads, it may also have the following characteristics: wherein the fire extinguishing pad is a fire extinguishing patch, and the self-igniting fire extinguishing agent comprises the following raw material components in parts by weight: 50 parts potassium nitrate, 10 parts strontium nitrate, 5 parts 5-aminotetrazole, 6 parts azodicarbonamide, 5 parts dicyandiamide, 5 parts melamine, 5 parts phenolic resin, 5 parts shellac resin, 10 parts potassium bicarbonate, 5 parts nitrocellulose, 20 parts polyurethane urea, and 5 parts vermiculite powder.

[0018] In the application of the self-igniting fire extinguishing agent provided by the present invention in fire extinguishing discs, it may also have the following characteristics: wherein the fire extinguishing disc is a fire extinguishing cover, and the self-igniting fire extinguishing agent comprises the following raw material components in parts by weight: 25 parts potassium nitrate, 5 parts strontium nitrate, 3 parts 5-aminotetrazole, 2 parts azodicarbonamide, 2 parts dicyandiamide, 2 parts melamine, 2 parts phenolic resin, 3 parts shellac resin, 10 parts potassium bicarbonate, 5 parts nitrocellulose, 10 parts aluminum dihydrogen phosphate, 10 parts ammonium bicarbonate, and 7 parts heat-sensitive adhesive.

[0019] In the application of the self-igniting fire extinguishing agent provided by the present invention in fire extinguishing pads, it may also have the following characteristics: wherein the self-igniting fire extinguishing agent further includes: 1 to 5 parts by weight of colorant.

[0020] The role and effect of invention

[0021] According to the self-igniting fire extinguishing agent and its application as described in this invention, since the self-igniting fire extinguishing agent comprises the following raw material components in parts by weight: 50-60 parts potassium nitrate, 5-10 parts strontium nitrate, 5-10 parts 5-aminotetrazole, 5-10 parts azodicarbonamide, 5-10 parts dicyandiamide, 5-10 parts melamine, 5-10 parts phenolic resin, 5-10 parts shellac resin, 5-10 parts potassium bicarbonate, 1-5 parts nitrocellulose, and 1-10 parts vermiculite powder, its application in fire extinguishing products, such as fire extinguishing ropes and fire extinguishing discs, provides advantages such as a wide fire extinguishing range, rapid activation, low-temperature activation (approximately 180°C), thorough reaction, low turbidity of the extinguishing gas, low cost, and the ability to achieve passive temperature-sensing multiple fire extinguishing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the fire extinguishing rope in Embodiment 1 of the present invention;

[0023] Figure 2 This is a cross-sectional schematic diagram of the main body of the fire extinguishing rope in Embodiment 1 of the present invention. Detailed Implementation

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] To make the technical means, creative features, objectives and effects of this invention easy to understand, the following embodiments, in conjunction with the accompanying drawings, specifically illustrate the self-igniting fire extinguishing agent of this invention and its applications.

[0026] <Example 1>

[0027] Figure 1 This is a schematic diagram of the fire extinguishing rope in Embodiment 1 of the present invention; Figure 2 This is a cross-sectional schematic diagram of the main body of the fire extinguishing rope in Embodiment 1 of the present invention.

[0028] like Figure 1 As shown, Embodiment 1 provides a fire extinguishing rope 100, which includes a fire extinguishing rope body 10, a sealing component 20, and a self-igniting fire extinguishing agent.

[0029] The fire extinguishing rope body 10 has a hollow structure with a cavity 11 extending to both ends of the fire extinguishing rope body. A self-igniting extinguishing agent can be injected into the cavity 11 from either end. The fire extinguishing rope body 10 is made of fiberglass woven in both directions, impregnated with adhesive, and then air-dried and cured to form its shape.

[0030] The sealing element 20 is detachably installed on the end of the fire extinguishing rope body 10 by means of screwing or plugging, thereby sealing the end and preventing the self-igniting extinguishing agent from leaking from the end. The sealing element 20 is cone-shaped. Specifically, the sealing element 20 can be directly inserted into the end of the fire extinguishing rope body 10, for example; or a plug-in or threaded interface adapted to the sealing element 20 can be provided in advance at the end of the fire extinguishing rope body 10, and then the sealing element 20 is connected to the corresponding structure.

[0031] The self-igniting fire extinguishing agent is a rapid-ignition type, comprising the following raw material components in parts by weight:

[0032] Potassium nitrate 50 parts, strontium nitrate 10 parts, 5-aminotetrazole 5 parts, azodicarbonamide 6 parts, dicyandiamide 5 parts, melamine 5 parts, phenolic resin 5 parts, shellac resin 5 parts, potassium bicarbonate 10 parts, nitrocellulose 4 parts.

[0033] The process of making a 100mm fire extinguishing rope is as follows:

[0034] Step 1: Use fiberglass to weave in both directions, then impregnate and apply adhesive, and finally air dry and cure to form the main body 10 of the fire extinguishing rope.

[0035] Step 2: Mix the self-igniting fire extinguishing agent according to the above ratio.

[0036] Step 3: Insert the sealing piece 20 into one end of the fire extinguishing rope body 10, and pour the mixture into the cavity 11 of the fire extinguishing rope body 10 through the other end of the fire extinguishing rope body 10. During the pouring process, a plug can be inserted at intervals to prevent uneven material distribution caused by excessive rope length (especially at bends). As a variation, the plugs may not be required.

[0037] Step 4: After the filling is completed, insert the other end of the fire extinguishing rope body 10 into the sealing piece 20.

[0038] The fire extinguishing performance of the 100mm fire extinguishing rope is tested as follows:

[0039] The n-heptane inside the fire pit is placed 20cm below the fire extinguishing rope 100 and ignited. The fire extinguishing rope 100 activates within 5 seconds. Due to the rapid gas generation, a rope bursting sound may be produced. The reaction is thorough, and the extinguishing gas has low turbidity.

[0040] <Example 2>

[0041] Example 2 provides another type of fire extinguishing rope, which differs from the fire extinguishing rope of Example 1 only in that the formula of the self-igniting fire extinguishing agent is different. The other structures and manufacturing methods are the same as those of Example 1, and will not be described again here.

[0042] The self-igniting extinguishing agent in Example 2 is a slow-ignition type, comprising the following raw material components in parts by weight:

[0043] Potassium nitrate 50 parts, strontium nitrate 10 parts, 5-10 parts 5-aminotetrazole, azodicarbonamide 5 parts, dicyandiamide 5 parts, melamine 9 parts, phenolic resin 5 parts, shellac resin 5 parts, potassium bicarbonate 5-10 parts, nitrocellulose 2 parts.

[0044] The fire extinguishing performance test of the fire extinguishing rope in Example 2 is as follows:

[0045] The n-heptane inside the fire pit is placed 20cm below the extinguishing rope 100 and ignited. The extinguishing rope starts to activate within 10 seconds. The gas generation speed is slow, there is no rope bursting sound, the reaction is complete, and the extinguishing gas has low turbidity.

[0046] <Example 3>

[0047] Example 3 provides a fire extinguishing patch, which is a fire extinguishing adhesive patch. This fire extinguishing adhesive patch is suitable for fire extinguishing scenarios in small spaces.

[0048] The fire extinguishing patch includes a self-igniting fire extinguishing agent, which comprises the following raw material components in parts by weight:

[0049] Potassium nitrate 50 parts, strontium nitrate 10 parts, 5-aminotetrazole 5 parts, azodicarbonamide 6 parts, dicyandiamide 5 parts, melamine 5 parts, phenolic resin 5 parts, shellac resin 5 parts, potassium bicarbonate 10 parts, nitrocellulose 5 parts, polyurethane urea 20 parts, vermiculite powder 5 parts, colorant 2 parts. The colorant can be a colored metallic mineral, such as ferric oxide, ferric oxide, basic copper carbonate, etc.

[0050] The manufacturing process of fire extinguishing patches is as follows:

[0051] The raw material components of the self-igniting fire extinguishing agent are mixed according to the above proportions, then pressed into a sheet shape, and double-sided tape is attached to one side to obtain a fire extinguishing disc; or the raw material components of the self-igniting fire extinguishing agent are mixed according to the above proportions, and then pressed into a tin box coated with pressure-sensitive adhesive to obtain a fire extinguishing disc.

[0052] Fire extinguishing discs can be manufactured to any size, for example, 100mm in length, 100mm in width, and 3.5mm in height. In this size configuration, the extinguishing agent in the disc must weigh at least 20g.

[0053] The fire extinguishing performance of the fire extinguishing patch in Example 3 was tested as follows:

[0054] The square fire pit contains n-heptane. When placed 20cm below the fire extinguishing patch, it is ignited. The fire extinguishing patch activates within 10 seconds and can completely submerge and extinguish a 250-liter cabinet. The fire extinguishing patch reacts thoroughly, and the extinguishing gas has low turbidity.

[0055] <Example 4>

[0056] Example 4 provides a fire extinguishing disc, which is a fire extinguishing cover. The fire extinguishing cover is suitable for large-area fire extinguishing scenarios.

[0057] The fire extinguishing cover includes a self-igniting extinguishing agent, which comprises the following raw material components in parts by weight:

[0058] Potassium nitrate 25 parts, strontium nitrate 5 parts, 5-aminotetrazole 3 parts, azodicarbonamide 2 parts, dicyandiamide 2 parts, melamine 2 parts, phenolic resin 2 parts, shellac resin 3 parts, potassium bicarbonate 10 parts, nitrocellulose 5 parts, aluminum dihydrogen phosphate 10 parts, ammonium bicarbonate 10 parts, and heat-sensitive adhesive 7 parts.

[0059] The manufacturing process of a fire extinguisher cover is as follows:

[0060] The raw material components of the self-igniting fire extinguishing agent are mixed according to the above proportions, then wrapped with fiberglass cloth, the edges are edged with silicone rubber, and the surface is coated with polyurea to obtain a fire extinguishing cover.

[0061] The size of the fire extinguishing cover can be customized as needed. For example, a fire extinguishing cover with a unit area of ​​1 square meter can be made for use on cable trays and other similar locations.

[0062] The fire extinguishing cover of this embodiment costs only one-quarter of the cost of the commercially available perfluorohexanone microcapsule fire extinguishing cover from SFEX, a South Korean company, and can also achieve passive temperature-sensing multiple fire extinguishing.

[0063] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A self-igniting fire extinguishing agent, characterized in that, The raw material components include the following parts by weight: Potassium nitrate 50-60 parts, strontium nitrate 5-10 parts, 5-aminotetrazole 5-10 parts, azodicarbonamide 5-10 parts, dicyandiamide 5-10 parts, melamine 5-10 parts, phenolic resin 5-10 parts, shellac resin 5-10 parts, potassium bicarbonate 5-10 parts, nitrocellulose 1-5 parts, vermiculite powder 1-10 parts The self-igniting fire extinguishing agent can be activated at 180°C.

2. The application of the self-igniting extinguishing agent as described in claim 1 in fire extinguishing ropes, characterized in that: The fire extinguishing rope includes a hollow fire extinguishing rope body; and A self-igniting extinguishing agent is filled inside the main body of the fire extinguishing rope. The self-igniting fire extinguishing agent is the self-igniting fire extinguishing agent as described in claim 1.

3. The application of the self-igniting extinguishing agent according to claim 2 in fire extinguishing ropes, characterized in that: in, The self-igniting fire extinguishing agent is a rapid-ignition type, comprising the following raw material components in parts by weight: Potassium nitrate 50 parts, strontium nitrate 10 parts, 5-aminotetrazole 5 parts, azodicarbonamide 6 parts, dicyandiamide 5 parts, melamine 5 parts, phenolic resin 5 parts, shellac resin 5 parts, potassium bicarbonate 10 parts, nitrocellulose 4 parts.

4. The application of the self-igniting extinguishing agent according to claim 2 in fire extinguishing ropes, characterized in that: in, The self-igniting fire extinguishing agent is a slow-ignition type, comprising the following raw material components in parts by weight: Potassium nitrate 50 parts, strontium nitrate 10 parts, 5-10 parts 5-aminotetrazole, azodicarbonamide 5 parts, dicyandiamide 5 parts, melamine 9 parts, phenolic resin 5 parts, shellac resin 5 parts, potassium bicarbonate 5-10 parts, nitrocellulose 2 parts.

5. The application of the self-igniting extinguishing agent according to claim 2 in fire extinguishing ropes, characterized in that: in, The main body of the fire extinguishing rope is made of fiberglass woven in both directions, and is formed after being impregnated with adhesive and air-dried and cured.

6. The application of the self-igniting extinguishing agent as described in claim 1 in fire extinguishing discs, characterized in that, Includes the self-igniting fire extinguishing agent as described in claim 1.

7. The application of the self-igniting fire extinguishing agent according to claim 6 in fire extinguishing discs, characterized in that: in, The self-igniting fire extinguishing agent is mixed with its raw material components, pressed into a sheet shape, and then coated with double-sided adhesive tape on one side to obtain the fire extinguishing sheet; or The self-igniting fire extinguishing agent is mixed and then pressed into a tin box coated with pressure-sensitive adhesive to obtain the fire extinguishing disc; or After mixing the various raw material components of the self-igniting fire extinguishing agent, the mixture is wrapped with fiberglass cloth, the edges are edged with silicone rubber, and the surface is coated with polyurea to obtain the fire extinguishing disc.

8. The application of the self-igniting extinguishing agent according to claim 6 in fire extinguishing discs, characterized in that: in, The fire extinguishing pad is a fire extinguishing patch, and the self-igniting fire extinguishing agent comprises the following raw material components in parts by weight: Potassium nitrate 50 parts, strontium nitrate 10 parts, 5-aminotetrazole 5 parts, azodicarbonamide 6 parts, dicyandiamide 5 parts, melamine 5 parts, phenolic resin 5 parts, shellac resin 5 parts, potassium bicarbonate 10 parts, nitrocellulose 5 parts, polyurethane urea 20 parts, vermiculite powder 5 parts.

9. The application of the self-igniting fire extinguishing agent according to claim 6 in fire extinguishing discs, characterized in that: in, The fire extinguishing disc is a fire extinguishing cover, and the self-igniting fire extinguishing agent comprises the following raw material components in parts by weight: Potassium nitrate 25 parts, strontium nitrate 5 parts, 5-aminotetrazole 3 parts, azodicarbonamide 2 parts, dicyandiamide 2 parts, melamine 2 parts, phenolic resin 2 parts, shellac resin 3 parts, potassium bicarbonate 10 parts, nitrocellulose 5 parts, aluminum dihydrogen phosphate 10 parts, ammonium bicarbonate 10 parts, and heat-sensitive adhesive 7 parts.

10. The application of the self-igniting fire extinguishing agent according to claim 8 or 9 in fire extinguishing discs, characterized in that: in, The self-igniting fire extinguishing agent also includes: Colorant 1-5 parts by weight.

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