Self-triggering cooling and heat-insulating fire extinguisher and application thereof

Abstract

The invention belongs to the technical field of fire-fighting product manufacturing, and particularly relates to a self-triggering cooling and heat-insulating fire extinguisher and application thereof. The self-triggering cooling and heat-insulating fire extinguisher comprises a vesicle structure and a cooling and heat-insulating base material surrounding the periphery of a vesicle, the vesicle structure is composed of a vesicle base material and a sealing base material covering the outer portion of the vesicle base material, a fire extinguishing agent is packaged in the vesicle structure, and pressure relief nicks are formed in the bottom of the vesicle structure. According to the self-triggering cooling and heat-insulating fire extinguisher, the single capsule is large in capacity and can be accurately selected and adjusted according to needs, the fire extinguishing effect is better, the preparation method is simpler and more efficient, and the fire extinguisher is suitable for large-scale production.

Description

Technical Field

[0001] The invention belongs to the technical field of fire protection product manufacturing, and in particular relates to a self-triggered cooling and heat-insulating fire extinguisher and application thereof. Background Art

[0002] Traditional fire extinguishers generally include auxiliary devices such as high-pressure storage tanks, valves, pipelines, pressure gauges, and usually require the use of fire detectors for linked fire extinguishing. However, in many small spaces that are sensitive to volume (such as power battery boxes, small substation cabinets, small electrical cabinets, etc.), traditional fire extinguishers cannot be installed and used due to their large size, heavy weight, and complex structure. In recent years, microcapsule fire extinguishers / patch products have appeared on the market. This product does not use auxiliary devices such as high-pressure storage tanks, valves, pipelines, pressure gauges, etc., and can be placed directly at the fire extinguishing site. It can automatically release fire extinguishing agents when a fire occurs. However, microcapsule fire extinguishing agents have problems such as complex preparation process, high production cost, low fire extinguishing agent load, and poor stability. Therefore, it is urgent to develop a new type of fire extinguisher with a simpler preparation method, more efficient agent load, and better stability. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a self-triggering cooling and heat insulation fire extinguisher and its application in view of the problems existing in the prior art. The present invention selects a vesicle-shaped fire extinguisher with a self-triggering function, and combines it with a self-sensing cooling and heat insulation flame retardant material to achieve efficient cooling, heat insulation and flame retardant effects on the protection area.

[0004] In order to achieve the above objectives, the first objective of the present invention is to provide a self-triggered cooling and heat insulation fire extinguisher, which adopts the following technical solutions:

[0005] A self-triggered cooling and heat-insulating fire extinguisher comprises a vesicle structure and a cooling and heat-insulating substrate surrounding the vesicle, wherein the vesicle structure is composed of a vesicle substrate and a sealing substrate covering the outside of the vesicle substrate, and a fire extinguishing agent is sealed in the vesicle structure, and a pressure relief notch is provided at the bottom of the vesicle substrate.

[0006] It is worth noting that the fire extinguisher prepared by the present invention does not require additional detection and triggering devices. The release of the fire extinguishing agent of the vesicle fire extinguisher can be triggered by the flame temperature. At the same time, the cooling and heat-insulating substrate around the vesicle can realize a phase change process at a specific temperature, thereby achieving the effects of heat absorption, cooling and heat insulation, and the directional injection of the fire extinguishing agent is achieved by pressing the pressure relief notch at the bottom of the vesicle structure, thereby improving the injection performance of the fire extinguisher and improving the fire extinguishing efficiency.

[0007] In the present invention, the connection relationship between the vesicle structure and the cooling and heat-insulating substrate in the "vesicle structure and the cooling and heat-insulating substrate surrounding the vesicle" includes but is not limited to the cooling and heat-insulating substrate covering the periphery of the vesicle structure, wherein the bottom of the vesicle structure is exposed to the surface of the cooling and heat-insulating substrate; or, the vesicle structure penetrates and is embedded in the cooling and heat-insulating substrate, wherein the top and bottom of the vesicle structure are exposed to the surface of the cooling and heat-insulating substrate. And the cooling and heat-insulating substrate per unit area may include one to multiple vesicle structures, and when the cooling and heat-insulating substrate per unit area includes multiple vesicle structures, the size and content of the vesicle structure may be a combination of one or more.

[0008] Furthermore, the sealing substrate comprises an outer layer of protective material, a middle layer of supporting material and an inner layer of adhesive sealing material, and the adhesive sealing material is connected to the vesicle substrate.

[0009] It is worth noting that the inner layer of adhesive sealing material can achieve effective connection with the vesicle substrate, the middle layer of supporting material can achieve effective support for the entire vesicle substrate, and the outer layer of fireproof material can achieve waterproof and anti-corrosion effects on the middle layer of supporting material.

[0010] Furthermore, the protective material is selected from one of amino resin, fluorine-containing resin, silicone polymer, acrylic polymer; the supporting material is selected from one of polyvinyl chloride, polypropylene, polyethylene terephthalate, polyethylene, chlorinated polyethylene, polyimide, aluminum foil, tin foil, copper foil and one or more combinations thereof; the adhesive sealing material is selected from one of epoxy resin glue, cyanoacrylate glue, hot melt glue, and acrylate copolymer glue.

[0011] It is worth noting that the protective materials are all non-flammable materials with good waterproof and anti-corrosion functions; the supporting materials are common engineering plastics or metal materials, which are easy to obtain and have good strength; the adhesive sealing materials have good bonding properties with the vesicle substrate, which is conducive to industrial preparation.

[0012] Furthermore, the vesicle substrate is selected from one or more combinations of polyvinyl chloride, polypropylene, polyethylene terephthalate, polyethylene, chlorinated polyethylene, polyimide, polycarbonate, ABS plastic, aluminum foil, tin foil, and copper foil.

[0013] It is worth noting that the vesicle substrate has good compatibility with the fire extinguishing agent, which is conducive to long-term storage.

[0014] Furthermore, the temperature-reducing and heat-insulating substrate is selected from one or more of inorganic hydrated salts, hydrogel materials, epoxy resins and silica gel.

[0015] Furthermore, the inorganic hydrated salt is selected from one or more combinations of barium hydroxide octahydrate, sodium acetate trihydrate, magnesium chloride hexahydrate, potassium aluminum sulfate dodecahydrate, trisodium phosphate dodecahydrate, magnesium sulfate heptahydrate, calcium chloride hexahydrate, disodium hydrogen phosphate dodecahydrate, sodium metasilicate nonahydrate, sodium metasilicate pentahydrate, sodium sulfate decahydrate, ferric chloride hexahydrate, sodium carbonate decahydrate, potassium ferric sulfate dodecahydrate, calcium bromide hexahydrate, magnesium iodide octahydrate, calcium iodide hexahydrate, dipotassium hydrogen phosphate heptahydrate, sodium aluminum sulfate decahydrate, sodium metasilicate tetrahydrate, magnesium ammonium phosphate hexahydrate, magnesium chloride tetrahydrate, sodium borate decahydrate, ammonium aluminum sulfate dodecahydrate and hydrated alumina.

[0016] It is worth noting that, considering that inorganic hydrated salts have high phase change heat absorption capacity and are all non-combustible materials, they can play a good role in cooling, heat insulation and flame retardancy. The present invention prefers inorganic hydrated salts as cooling, heat insulation and flame retardancy materials.

[0017] Furthermore, the fire extinguishing agent is selected from a combination of one or more of dry powder fire extinguishing agent, dry water fire extinguishing agent, perfluorohexanone, 2-bromo-3,3,3-trifluoropropene, halogenated alkane fire extinguishing agent, and thermal aerosol fire extinguishing agent.

[0018] In order to fully realize the technology of the present invention, a preparation method suitable for the self-triggered cooling and heat-insulating fire extinguisher of the present invention is now disclosed. However, it should be understood that all preparation methods suitable for the self-triggered cooling and heat-insulating fire extinguisher of the present invention obtained based on the prior art without creative work can be used to prepare the self-triggered cooling and heat-insulating fire extinguisher disclosed in the present invention.

[0019] A method for preparing a self-triggered cooling and heat-insulating fire extinguisher comprises the following steps: firstly, adding a fire extinguishing agent into a vesicle of a vesicle-shaped substrate, then covering the sealing substrate and sealing the vesicle, then covering the cooling and heat-insulating substrate on the periphery of the vesicle, and finally packaging and fixing the entire vesicle-shaped fire extinguisher.

[0020] The preparation method disclosed in the present invention is simple and efficient, and is suitable for large-scale production. Compared with microcapsule technology, the preparation process does not involve chemical reactions, and the preparation process is more stable and controllable; and no solvent is required, and the production environment is safe and environmentally friendly. The preparation of a complete capsule fire extinguisher can be achieved only through simple filling and packaging, without the need for polymerization reaction equipment, with higher production efficiency and lower process threshold, and is more suitable for industrial production.

[0021] The second object of the present invention is to provide an application of the self-triggered cooling and heat-insulating fire extinguisher as described above.

[0022] Application of a self-triggered cooling and heat-insulating fire extinguisher in battery fire prevention and control.

[0023] Furthermore, the self-triggered cooling and heat-insulating fire extinguisher is used in fire prevention and control of electrical boxes / cabinets, distribution boxes / cabinets, and transformer boxes / cabinets.

[0024] When used, the self-triggered cooling and heat-insulating fire extinguisher is placed between single cells or near the pressure relief port of single cells, or above flammable materials. When the flame temperature reaches a certain temperature, the fire extinguishing agent in the vesicle substrate can automatically achieve directional, long-distance, and large-dose spraying. After the fire extinguishing agent is used up, the cooling and heat-insulating function of the cooling and heat-insulating substrate itself can effectively ensure the fire safety of the protected area.

[0025] Compared with the prior art, the present invention.

[0026] (1) The number and size of the vesicles in the self-triggered cooling and thermal insulation fire extinguisher of the present invention can be adjusted according to the fire extinguishing requirements. Compared with the microcapsule fire extinguisher, the self-triggered cooling and thermal insulation fire extinguisher of the present invention has a higher fire extinguishing agent content and can be precisely quantitatively controlled.

[0027] (2) The preparation method of the self-triggered cooling and heat-insulating fire extinguisher of the present invention is simpler and more efficient, and is suitable for large-scale production. The entire preparation process does not require solvents and does not involve chemical reactions, and can be achieved only through simple filling and packaging; while the microcapsule fire extinguishing agent not only requires the use of a large amount of solvent, but also the packaging material needs to undergo a heating polymerization reaction or a photochemical polymerization reaction during the preparation process.

[0028] (3) The method of using the self-triggered cooling and heat-insulating fire extinguisher of the present invention is simpler. The size of the cooling and heat-insulating substrate encapsulated with the vesicle structure can be cut according to the needs, and then directly fixed for use; while the microcapsule fire extinguisher requires a large amount of microcapsule powder fire extinguishing agent to be firstly embedded with glue and then fixed on the fixing device.

[0029] (4) The self-triggered cooling and heat-insulating fire extinguisher of the present invention has a better fire extinguishing effect. Since the fire extinguishing agent content of a single vesicle is higher, and by pressing a pressure relief notch on the bottom substrate of the vesicle and controlling the residual thickness of the notch, the fire extinguishing agent can be sprayed in a directional, long-distance, and large-dose manner during fire extinguishing. However, the size of a single microcapsule of a microcapsule fire extinguisher is micron-level, the fire extinguishing agent content is extremely limited, the released fire extinguishing agent has a short spray distance, and the release direction of the microcapsule rupture is not fixed, making it difficult to achieve the fire extinguishing effect of the present invention.

[0030] (5) The self-triggered cooling and heat-insulating fire extinguisher of the present invention not only realizes fire extinguishing, but also has the functions of cooling and heat insulation. After the fire extinguishing agent is used up, it can effectively ensure the fire safety of the protected area. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0032] The word "embodiment" used here as an "exemplary" does not necessarily mean that any embodiment described is superior to or better than other embodiments. Unless otherwise specified, the performance index tests in the embodiments of this application are performed using conventional test methods in the art. It should be understood that the terms described in this application are only used to describe specific implementation methods and are not used to limit the content disclosed in this application.

[0033] Unless otherwise specified, the technical and scientific terms used in this document have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs; other experimental methods and technical means not specifically specified in this application refer to experimental methods and technical means commonly used by ordinary technicians in this field.

[0034] In order to better illustrate the content of the present application, numerous specific details are provided in the specific examples below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In the embodiments, some methods, means, instruments, equipment, etc. well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0035] Under the premise of no conflict, the technical features disclosed in the embodiments of the present application can be combined arbitrarily, and the resulting technical solutions belong to the contents disclosed in the embodiments of the present application.

[0036] The present invention discloses a self-triggered cooling and heat-insulating fire extinguisher and its application, and belongs to the technical field of fire-fighting product manufacturing. The self-triggered cooling and heat-insulating fire extinguisher disclosed in the present invention comprises a vesicle structure and a cooling and heat-insulating substrate surrounding the vesicle, wherein the vesicle structure is composed of a vesicle substrate and a sealing substrate covering the outside of the vesicle substrate, and a fire-extinguishing agent is packaged in the vesicle structure, and a pressure relief notch is provided at the bottom of the vesicle structure. The single capsule of the self-triggered cooling and heat-insulating fire extinguisher disclosed in the present invention has a large capacity and can be accurately selected and adjusted according to needs, has a better fire-extinguishing effect, and a simpler and more efficient preparation method, which is suitable for large-scale production.

[0037] In order to better understand the present invention, the present invention is further specifically described below through the following examples, but it should not be understood as a limitation of the present invention. Some non-essential improvements and adjustments made by technicians in this field based on the above invention content are also considered to fall within the protection scope of the present invention.

[0038] Example 1

[0039] A polyvinyl chloride substrate with a hemispherical vesicle structure was selected, the substrate thickness was 1mm, the overall dimensions of the substrate were 75mm long and 32mm wide, the vesicle size was 9mm in diameter, the number of vesicles was 21, a circular notch with a diameter of 2mm was engraved on the bottom of each vesicle, and the residual thickness of the notch was 0.5mm; all vesicles were filled with perfluorohexanone fire extinguishing agent, and the three-layer structure of the sealing substrate was fluorine-containing resin (outer layer), aluminum foil (middle layer), and hot melt adhesive (inner layer). The sealing vesicle containing the fire extinguishing agent was obtained by hot pressing and sealing with a hot press; the hydrogel cooling and heat-insulating substrate was covered on the periphery of the vesicle, and finally the entire vesicle-shaped fire extinguisher was packaged and fixed. According to the weighing measurement, the content of perfluorohexanone fire extinguishing agent accounted for 92% of the weight of the entire vesicle-shaped fire extinguisher.

[0040] Example 2

[0041] A cylindrical aluminum-plastic film substrate is selected, the substrate thickness is 150 μm, the overall dimensions of the substrate are 75 mm long and 32 mm wide, the length, width and height of the vesicle are 70 mm * 28 mm * 9 mm, the number of vesicles is 1, and a circular notch with a diameter of 2 mm is engraved in the center of the bottom of the vesicle, and the residual thickness of the notch is 80 μm; 2-bromo-3,3,3-trifluoropropylene fire extinguishing agent is filled into all vesicles, and a sealing substrate with a three-layer structure of amino resin (outer layer), chlorinated polyethylene (middle layer) and epoxy resin glue (inner layer) is covered, and a press is used to perform a press-sealed treatment to obtain a sealed vesicle containing a fire extinguishing agent; a cooling and heat-insulating substrate composited with ammonium aluminum sulfate dodecahydrate and silica gel (containing 2% curing agent) in a mass ratio of 50:50 is covered on the periphery of the vesicle, and after curing, the entire vesicle-shaped fire extinguisher is packaged and fixed. After weighing and measurement, the content of 2-bromo-3,3,3-trifluoropropene fire extinguishing agent accounts for 96% of the weight of the entire vesicular fire extinguisher.

[0042] Example 3

[0043] A polypropylene substrate with a square vesicle structure was selected, the thickness of the substrate was 1mm, the overall dimensions of the substrate were 75mm long*32mm wide, the length, width and height of the vesicle were 9mm*9mm*9mm, the number of vesicles was 21, and a circular notch with a diameter of 2mm was engraved on the bottom of each vesicle, and the residual thickness of the notch was 0.5mm; the dry powder fire extinguishing agent was filled in all vesicles, and the three-layer sealing substrate with a structure of silicone polymer (outer layer), aluminum foil (middle layer), and hot melt adhesive (inner layer) was covered, and the sealed vesicle containing the fire extinguishing agent was obtained by hot pressing and sealing with a hot press; the cooling and heat-insulating substrate composited with sodium borate hydrate and epoxy resin in a mass ratio of 60:40 was covered on the periphery of the vesicle, and after light curing, the entire vesicle-shaped fire extinguisher was encapsulated and fixed. According to weighing and measurement, the dry powder fire extinguishing agent content accounted for 87% of the weight of the entire vesicle-shaped fire extinguisher.

[0044] Example 4

[0045] A polypropylene substrate with a square vesicle structure was selected, the thickness of the substrate was 1mm, the overall dimensions of the substrate were 75mm long * 32mm wide, the length, width and height of the vesicle were 9mm * 9mm * 9mm, the number of vesicles was 21, and a circular notch with a diameter of 2mm was engraved on the bottom of each vesicle, and the residual thickness of the notch was 0.mm; the hot aerosol fire extinguishing agent was filled in all vesicles, and the three-layer structure of the sealing substrate was covered with a silicone polymer (outer layer), aluminum foil (middle layer), and hot melt adhesive (inner layer), and the sealed vesicle containing the fire extinguishing agent was obtained by hot pressing and sealing with a hot press; the cooling and heat insulation block pressed by trisodium phosphate dodecahydrate (outer dimensions: 75mm long * 32mm wide * 9mm high, 21 through holes were opened according to the size and position of the vesicle) was nested on the periphery of the vesicle, and the entire vesicle-shaped fire extinguisher was encapsulated and fixed. According to the weighing measurement, the content of the hot aerosol fire extinguishing agent accounted for 90% of the weight of the entire vesicle-shaped fire extinguisher.

[0046] Example 5

[0047] A polyvinyl chloride substrate with a hemispherical vesicle structure was selected, the substrate thickness was 1mm, the overall dimensions of the substrate were 75mm long and 32mm wide, the vesicle size was 9mm in diameter, the number of vesicles was 21, a circular notch with a diameter of 2mm was engraved on the bottom of each vesicle, and the residual thickness of the notch was 0.5mm; all vesicles were filled with perfluorohexanone fire extinguishing agent, and the three-layer structure of the sealing substrate, which was fluorine-containing resin (outer layer), aluminum foil (middle layer), and hot melt adhesive (inner layer), was covered with a hot press to perform hot pressing and sealing treatment to obtain a sealed vesicle containing a fire extinguishing agent. According to weighing and measurement, the content of perfluorohexanone fire extinguishing agent accounted for 98% of the weight of the entire vesicle-shaped fire extinguisher.

[0048] In order to further demonstrate the beneficial effects of the present invention and to better understand the present invention, the properties and application performance of the self-triggered cooling and heat-insulating fire extinguisher disclosed in the present invention are further illustrated through the following performance tests, but it should not be understood as a limitation of the present invention. The method properties obtained by other measurement experiments conducted by technicians in this field based on the above-mentioned invention content and the applications based on the above-mentioned properties are also regarded as falling within the protection scope of the present invention.

[0049] Experimental Example 1

[0050] In 1m 3 Two high-altitude fire extinguishing tests were carried out in a combustion box of a certain volume, namely, the self-triggered cooling and heat-insulating fire extinguisher was placed 5 cm and 20 cm above the cotton soaked in n-heptane fuel respectively, the cotton below was ignited, and it was observed whether the flame could be extinguished and the extinguishing time; then, the box door was opened, the fire was ignited several times until the fire extinguishing agent in the vesicular fire extinguisher was completely released, and finally the cotton was ignited again and burned for 5 minutes, and the temperature on the back of the vesicular fire extinguisher was tested.

[0051] For comparison, under the same test conditions, a microcapsule fire extinguisher having the same perfluorohexanone content as the fire extinguisher in Example 1 was subjected to the above test.

[0052] The results are shown in Table 1. It can be seen from the fire extinguishing tests of Examples 1-4 that the self-triggered cooling and heat-insulating fire extinguisher of the present invention has a good fire extinguishing effect, while it can be seen from the fire extinguishing test of the microcapsule fire extinguisher that the microcapsule fire extinguisher cannot extinguish a fire at a long distance; it can be seen from the tests of Examples 1, 2, 4 and 5 that the liquid fire extinguishing agent and the hot aerosol fire extinguishing agent placed in the vesicle are faster than the dry powder fire extinguishing agent in extinguishing the fire. The main reason is that the liquid fire extinguishing agent and the hot aerosol fire extinguishing agent are heated and vaporized in the vesicle or a gasification reaction occurs to generate a certain pressure, and a jet effect is produced when the vesicle ruptures, and the fire extinguishing effect is better; it can be seen from Examples 1-4 and 5 that the fire extinguisher with the cooling and heat-insulating material covering the outer periphery of the vesicle can ensure that the protection area is at a lower temperature even after the fire extinguishing agent is released.

[0053] Table 1 Experimental results of Experimental Example 1

[0054]

[0055]

[0056] Experimental Example 2

[0057] A lithium battery fire test was conducted in a battery box (battery box size: length 18cm*width 15cm*height 12cm) consisting of 30 18650 ternary lithium batteries (single cell capacity 3500mAh) closely arranged in 5×6. The self-triggered cooling and heat-insulating fire extinguisher was affixed to the inner cover of the battery box, just above the lithium battery that caused thermal runaway. The middle battery was caused to thermal runaway by overcharging, and the fire extinguisher was observed to see if it could extinguish the battery fire and suppress the spread of the lithium battery thermal runaway fire, and the surface temperature change of the thermal runaway lithium battery was recorded.

[0058] For comparison, under the same test conditions, a microcapsule fire extinguisher having the same perfluorohexanone content as the fire extinguisher in Example 1 was subjected to the above test.

[0059] The results are shown in Table 2. It can be seen that the self-triggered cooling and heat-insulating fire extinguishers of the present invention can extinguish lithium battery fires, while the microcapsule fire extinguisher cannot extinguish lithium battery fires. The main reason is that the self-triggered cooling and heat-insulating fire extinguisher of the present invention has a larger storage capacity of a single vesicle fire extinguishing agent, which can be released quickly and concentratedly, while the capsules of the microcapsule fire extinguisher are micron-sized, and the fire extinguishing agent content of a single capsule is low, resulting in a slow overall release rate. In addition, it can be seen from Examples 1-5 that Examples 1, 2 and 5 can inhibit the spread of thermal runaway of lithium batteries, while Examples 3 and 4 cannot inhibit the spread of thermal runaway of lithium batteries. The main reason is that liquid fire extinguishing agents have better cooling effects than dry powder and hot aerosol fire extinguishing agents.

[0060] Table 2 Experimental results of Experimental Example 2

[0061]

[0062]

[0063] *The fire was not extinguished after the lithium battery thermal runaway. This temperature is the battery surface temperature after the microcapsule fire extinguishing agent is completely released.

[0064] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-triggered cooling and heat insulation fire extinguisher, characterized in that: The invention comprises a vesicle structure and a cooling and heat-insulating substrate surrounding the vesicle. The vesicle structure is composed of a vesicle substrate and a sealing substrate covering the outside of the vesicle substrate. A fire extinguishing agent is sealed in the vesicle structure, and a pressure relief notch is provided at the bottom of the vesicle substrate.

2. The self-triggered cooling and heat insulation fire extinguisher according to claim 1 is characterized in that: The sealing substrate comprises an outer layer of protective material, a middle layer of supporting material and an inner layer of adhesive sealing material, and the adhesive sealing material is connected to the vesicle substrate.

3. The self-triggered cooling and heat insulation fire extinguisher according to claim 2 is characterized in that: The protective material is selected from one of amino resin, fluorine-containing resin, silicone polymer, and acrylic polymer; the supporting material is selected from one of polyvinyl chloride, polypropylene, polyethylene terephthalate, polyethylene, chlorinated polyethylene, polyimide, aluminum foil, tin foil, and copper foil; the adhesive sealing material is selected from one of epoxy resin glue, cyanoacrylate glue, hot melt glue, and acrylate copolymer glue.

4. The self-triggered cooling and heat insulation fire extinguisher according to claim 1 is characterized in that: The vesicle substrate is selected from one or more combinations of polyvinyl chloride, polypropylene, polyethylene terephthalate, polyethylene, chlorinated polyethylene, polyimide, polycarbonate, ABS plastic, aluminum foil, tin foil, and copper foil.

5. The self-triggered cooling and heat insulation fire extinguisher according to claim 1 is characterized in that: The temperature-reducing and heat-insulating substrate is selected from one or more of inorganic hydrated salts, hydrogel materials, epoxy resins and silica gel.

6. The self-triggered cooling and heat insulation fire extinguisher according to claim 5, characterized in that: The inorganic hydrated salt is selected from one or more combinations of barium hydroxide octahydrate, sodium acetate trihydrate, magnesium chloride hexahydrate, potassium aluminum sulfate dodecahydrate, trisodium phosphate dodecahydrate, magnesium sulfate heptahydrate, calcium chloride hexahydrate, disodium hydrogen phosphate dodecahydrate, sodium metasilicate nonahydrate, sodium metasilicate pentahydrate, sodium sulfate decahydrate, ferric chloride hexahydrate, sodium carbonate decahydrate, potassium ferric sulfate dodecahydrate, calcium bromide hexahydrate, magnesium iodide octahydrate, calcium iodide hexahydrate, dipotassium hydrogen phosphate heptahydrate, sodium aluminum sulfate decahydrate, sodium metasilicate tetrahydrate, magnesium ammonium phosphate hexahydrate, magnesium chloride tetrahydrate, sodium borate decahydrate, ammonium aluminum sulfate dodecahydrate and hydrated aluminum oxide.

7. The self-triggered cooling and heat insulation fire extinguisher according to claim 1 is characterized in that: The fire extinguishing agent is selected from one or more combinations of dry powder fire extinguishing agent, dry water fire extinguishing agent, perfluorohexanone, 2-bromo-3,3,3-trifluoropropene, halogenated alkane fire extinguishing agent, and thermal aerosol fire extinguishing agent.

8. An application of the self-triggered cooling and heat-insulating fire extinguisher according to any one of claims 1 to 7, characterized in that: Application in battery fire prevention and control.

9. The use according to claim 8, characterized in that: The self-triggered cooling and heat-insulating fire extinguisher is used in fire prevention and control of electrical boxes / cabinets, distribution boxes / cabinets, and transformer boxes / cabinets.

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