Fire extinguishing adhesive tape and production equipment thereof

Abstract

The utility model relates to a fire-extinguishing adhesive tape which comprises an adhesive layer and a flame-retardant base material layer adhered to one side of the adhesive layer, a plurality of material storage cavities are formed on the flame-retardant base material layer, fire-extinguishing capsules are filled in the material storage cavities, and the flame-retardant base material layer is easy to crack when being heated in the material storage cavities so as to release the fire-extinguishing capsules. The fire extinguishing adhesive tape provided by the utility model can be adhered to a lithium battery, a power distribution cabinet, an underground pipeline and other long-term closed areas with fire hazards through the adhesive layer, when a fire occurs, air in the material storage cavity is heated, the flame-retardant base material layer is broken at the position of the material storage cavity, and the fire extinguishing capsule is instantaneously sprayed out along with the hot air in the material storage cavity; the fire extinguishing capsule releases internal fire extinguishing liquid to achieve instant fire extinguishing. The utility model further discloses production equipment of the fire extinguishing adhesive tape.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing, in particular to a fire extinguishing adhesive tape and production equipment thereof. Background Art

[0002] Common fire response and automatic fire extinguishing devices such as smoke alarms and sprinklers have been widely used in residential, office, factory and other fields. With the development of society, especially the emergence of new energy vehicles and electronic products, more and more fire response and fire extinguishing technologies are being developed for lithium battery safety, which have higher requirements for response rate and fire extinguishing efficiency, universality of application sites and convenience of application.

[0003] Existing fire responses mostly use electronic sensors, which have certain response lags and false alarms. Existing fire extinguishing equipment for electronic products is mainly limited to powders and inert gases, which have disadvantages such as high pollution, high cost and manual operation. Fire extinguishing capsules wrapped with high-efficiency fire extinguishing liquid have the advantages of high fire extinguishing efficiency and no damage to the surrounding environment, and are currently gaining more and more attention. However, fire extinguishing capsules are currently mainly found in fire extinguishing tanks and are mainly placed manually. Although fire extinguishing capsules are occasionally wrapped in tape for use, they cannot fully realize the effectiveness of automatic response and automatic fire extinguishing. Utility Model Content

[0004] Based on this, in view of the fact that the current fire extinguishing capsules are mainly found in fire extinguishing tanks and are mainly placed manually, although the fire extinguishing capsules are occasionally wrapped in tape for use, the technical problem of being unable to fully exert the effectiveness of automatic response and automatic fire extinguishing is that it is necessary for the utility model to provide a fire extinguishing tape and its production equipment.

[0005] The utility model provides a fire extinguishing tape, which comprises an adhesive layer and a flame retardant base material layer bonded to one side of the adhesive layer, a plurality of storage cavities are formed on the flame retardant base material layer, each storage cavity is filled with a fire extinguishing capsule, and the flame retardant base material layer is easily pyrolyzed in the storage cavity position to release the fire extinguishing capsule.

[0006] The fire extinguishing tape provided by the utility model can be adhered to lithium batteries, distribution cabinets, underground pipelines and other areas that are long-term closed and have fire hazards through the adhesive layer. When a fire occurs, the air in the storage cavity is heated and the flame retardant base material layer is ruptured at the storage cavity position, and the fire extinguishing capsule is instantly ejected along with the hot air in the storage cavity, and the fire extinguishing capsule releases the internal fire extinguishing liquid to achieve instant fire extinguishing.

[0007] As a further improvement of the above solution of the utility model, the filling amount of the fire extinguishing capsule in each storage cavity is 5-65%.

[0008] As a further improvement of the above solution of the utility model, the material storage cavity has an opening and the opening of the material storage cavity faces the glue layer.

[0009] As a further improvement of the above scheme of the utility model, the flame retardant substrate layer is formed with multiple storage cavities by hot pressing, the thickness of the flame retardant substrate layer at the storage cavity position is less than the thickness at other positions, and the flame retardant substrate layer is cracked at 90-150°C at the storage cavity position.

[0010] As a further improvement of the above solution of the utility model, the fire extinguishing tape further comprises a release film layer, and the release film layer is bonded to a side of the adhesive layer away from the flame retardant substrate layer.

[0011] As a further improvement of the above solution of the utility model, the fire extinguishing capsule includes a hard shell layer and a fire extinguishing medium filled in the shell layer, and the cracking temperature of the hard shell layer is 100-200°C.

[0012] As a further improvement of the above solution of the utility model, the fire extinguishing capsule has a spherical structure or an ellipsoidal structure.

[0013] As a further improvement of the above solution of the utility model, the fire extinguishing capsule has a spherical structure with a diameter of 100-500 μm.

[0014] As a further improvement of the above solution of the utility model, the material storage cavity is a cavity structure with a circular, triangular, square or elliptical cross-section.

[0015] The utility model proposes a production equipment for the fire extinguishing tape as described above, which includes a hot pressing roller, a cold pressing roller, a feeding hopper, a laminating roller, a traction roller and a winding roller; the hot pressing roller and the cold pressing roller are arranged relatively to each other up and down and rotate relatively, a plurality of protrusions are formed on the surface of the hot pressing roller, and a plurality of grooves one matching with the protrusions are formed on the cold pressing roller, and during the rotation process, the protrusions on the surface of the hot pressing roller can enter the groove one on the surface of the cold pressing roller; the feeding hopper is arranged downstream of the hot pressing roller and is used for quantitative feeding; the laminating roller and the traction roller are arranged downstream of the feeding hopper and the laminating roller and the traction roller are arranged up and down, and a plurality of grooves two matching with the groove one are formed on the surface of the traction roller; the winding roller is arranged downstream of the laminating roller and is used for winding.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The fire extinguishing tape provided by the utility model can be adhered to lithium batteries, distribution cabinets, underground pipelines and other areas that are long-term closed and have fire hazards through the adhesive layer. When a fire occurs, the air in the storage cavity is heated and the flame retardant substrate layer is ruptured at the storage cavity. The fire extinguishing capsule is instantly ejected along with the hot air in the storage cavity, and the fire extinguishing capsule releases the internal fire extinguishing liquid to achieve instant fire extinguishing.

[0018] 2. The fire extinguishing tape provided by the utility model can be cut and fixed at will according to the usage scenario. The filling amount of the fire extinguishing capsule in the storage cavity can be reasonably designed according to the fire extinguishing object to ensure that the fire extinguishing capsule can be effectively ejected with the hot air in the storage cavity to achieve efficient fire extinguishing. It has a simple structure, high reliability and a wide range of application scenarios. It is particularly suitable for areas that are long-term closed and have fire hazards, such as lithium batteries, distribution cabinets, and underground pipelines.

[0019] 3. The production equipment of the fire extinguishing tape provided by the utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a fire extinguishing tape proposed in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the structure of a fire extinguishing capsule in a fire extinguishing tape proposed in an embodiment of the utility model;

[0022] Figure 3 The present invention is a schematic diagram of the structure of a production device for a fire extinguishing tape according to an embodiment of the present invention.

[0023] Figure numerals: 1, adhesive layer; 2, flame retardant substrate layer; 3, fire extinguishing capsule; 4, release film layer; 5, hot pressing roller; 6, cold pressing roller; 7, feeding hopper; 8, laminating roller; 9, traction roller; 10, winding roller. DETAILED DESCRIPTION

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

[0025] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0027] Example

[0028] This embodiment provides a fire extinguishing tape, which includes an adhesive layer 1 and a flame retardant substrate layer 2 , and may further include a release film layer 4 .

[0029] A plurality of storage cavities 21 are formed on the flame retardant substrate layer 2, and each storage cavity 21 is filled with a fire extinguishing capsule 3. In this embodiment, a plurality of storage cavities 21 are formed on the flame retardant substrate layer 2 by hot pressing, and the number of storage cavities 21 per unit area is 50-500. In this embodiment, the flame retardant substrate layer 2 is made of cotton paper, PET, non-woven fabric, silicone, polyurethane and other materials, and the flame retardant substrate layer 2 has a certain strength, which can realize the uniform fixation of the storage cavity 21 and the fire extinguishing capsule 3 on the plane. After forming a plurality of storage cavities 21 by hot pressing, the thickness of the flame retardant substrate layer 2 at the storage cavity 21 position is less than the thickness at the other positions, which makes the flame retardant substrate layer 2 at the storage cavity 21 position thin, strong and elastic, and easy to be thermally cracked. The cracking temperature of the flame retardant substrate layer 2 at the storage cavity 21 position is proportional to the thickness at this position, and the rupture temperature is 90-150°C. In practical applications, the filling amount of the fire extinguishing capsule 3 in each storage cavity 21 can be reasonably designed according to different fire extinguishing scenarios. In this embodiment, the filling amount of the fire extinguishing capsule 3 in each storage cavity 21 is 5-65%. In this embodiment, the storage cavity 21 is a cavity structure with a circular cross-section. Of course, in its embodiment, the storage cavity 21 can also be a cavity structure with a triangular, square or elliptical cross-section. The fire extinguishing capsule 3 includes a hard shell 31 and a fire extinguishing medium 32 filled in the shell 31. The fire extinguishing medium 32 adopts an existing liquid fire extinguishing medium 32, such as one or more of perfluorohexanone, perfluorotriethylamine and their homologues. In this embodiment, by designing the thickness of the different temperature-sensitive hard shell layers 31 of the fire extinguishing capsule, it is ensured that the fire extinguishing capsule bursts immediately when encountering fire. The bursting temperature of the hard shell layer 31 is generally set 50 degrees Celsius higher than the rupture temperature of the storage chamber to solve the problem of safe storage and timely response of the fire extinguishing capsule. In this embodiment, the cracking temperature of the hard shell layer 31 is 100-200°C. After the hard shell layer 31 is cracked, the fire extinguishing liquid is released for fire extinguishing. The hard shell layer 31 can be made of one or more compounds of chitosan, sodium alginate, polyacrylate, and polyurethane. In this embodiment, the fire extinguishing capsule 3 has a spherical structure with a diameter of 100-500μm. Of course, in other embodiments, the fire extinguishing capsule 3 can also be other structures, such as an ellipsoidal structure.

[0030] In this embodiment, the adhesive layer 1 uses a double-sided adhesive without a substrate, which has certain fire resistance and strong adhesion to metals, paint surfaces, plastics, etc. In an environment with a temperature of -40-100°C and a humidity of 0-90%, there is no phenomenon of falling off or bubbling. One side of the adhesive layer 1 is bonded to the flame-retardant substrate layer 2 and the opening of the storage cavity 21 is facing the adhesive layer 1, so that the storage cavity 21 can be sealed by the adhesive layer 1. In this embodiment, the adhesive used in the adhesive layer 1 will not chemically react with the fire extinguishing capsule 3 in the storage cavity 21.

[0031] In this embodiment, the release film layer 4 is bonded to the other side of the adhesive layer 1, so that before use, the adhesive layer 1 is protected by the release film layer 4. When in use, the release film layer 4 is directly peeled off, and the fire extinguishing tape can be bonded to the designated area through the adhesive layer 1.

[0032] The fire extinguishing tape of this embodiment can be cut at will according to the usage scenario, and can be adhered to lithium batteries, distribution cabinets, underground pipelines and other long-term closed, narrow areas with fire hazards through the adhesive layer 1. When a fire occurs, the air in the storage cavity 21 is heated and the flame retardant substrate layer 2 is ruptured at the position of the storage cavity 21. The fire extinguishing capsule 3 is instantly ejected along with the hot air in the storage cavity 21, and the fire extinguishing capsule 3 releases the internal fire extinguishing liquid to achieve instant fire extinguishing.

[0033] Reference Figure 3 In this embodiment, a production device for fire extinguishing tape is also proposed, including a hot pressing roller 5, a cold pressing roller 6, a feeding hopper 7, a laminating roller 8, a traction roller 9 and a winding roller 10. The hot pressing roller 5 and the cold pressing roller 6 are arranged relatively to each other up and down and rotate relatively. A plurality of protrusions are formed on the surface of the hot pressing roller 5, and a plurality of grooves 1 adapted to the protrusions are formed on the cold pressing roller 6. During the rotation process, the protrusions on the surface of the hot pressing roller 5 can enter the groove 1 on the surface of the cold pressing roller 6. By selecting a hot pressing roller 5 with different numbers of protrusions, the number of storage cavities 21 per unit area of ​​the flame retardant substrate layer 2 can be adjusted. The feeding hopper 7 is arranged downstream of the hot pressing roller 5 and is used for quantitative feeding. The single feeding amount of the feeding hopper 7 can be adjusted. The laminating roller 8 and the traction roller 9 are arranged downstream of the feeding hopper 7 and the laminating roller 8 and the traction roller 9 are arranged up and down. A plurality of grooves 2 adapted to the groove 1 are formed on the surface of the traction roller 9, and the traction speed of the traction roller 9 can be adjusted. The winding roller 10 is disposed downstream of the laminating roller 8 and is used for winding.

[0034] When the production equipment of this embodiment is used to produce fire extinguishing tape, the main process is: the hot pressing roller 5 and the cold pressing roller 6 are arranged opposite to each other, a plurality of protrusions are arranged on the hot pressing roller 5, and a groove matching the protrusions is formed on the cold pressing roller 6, the hot pressing roller 5 and the cold pressing roller 6 rotate relative to each other, and the flame retardant substrate layer 2 passes through the hot pressing roller 5 and the cold pressing roller 6, so that a storage cavity 21 with regular arrangement can be hot pressed out on the flame retardant detection layer; then, the fire extinguishing capsule 3 is quantitatively added to each storage cavity 21 through the feeding hopper 7; then, under the action of the traction roller 9, the adhesive layer 1 with the release film layer 4 passes together with the flame retardant substrate layer 2 between the laminating roller 8 and the traction roller 9, and under the action of the laminating roller 8, the flame retardant substrate layer 2 and the adhesive layer 1 are bonded together, and finally are wound up by the winding roller 10.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A fire extinguishing tape, characterized in that: It includes an adhesive layer and a flame retardant substrate layer bonded to one side of the adhesive layer. A plurality of storage cavities are formed on the flame retardant substrate layer. Each storage cavity is filled with a fire extinguishing capsule. The flame retardant substrate layer is easily cracked by heat at the storage cavity position to release the fire extinguishing capsule.

2. The fire extinguishing tape according to claim 1, characterized in that: In each storage cavity, the filling amount of the fire extinguishing capsule is 5-65%.

3. The fire extinguishing tape according to claim 1, characterized in that: The material storage cavity has an opening, and the opening of the material storage cavity faces the glue layer.

4. The fire extinguishing tape according to claim 3, characterized in that: The flame retardant substrate layer is formed with a plurality of storage cavities by hot pressing, the thickness of the flame retardant substrate layer at the storage cavity position is less than the thickness at other positions, and the flame retardant substrate layer is cracked at 90-150°C at the storage cavity position.

5. The fire extinguishing tape according to claim 1, characterized in that: The fire extinguishing tape also has a release film layer, which is bonded to a side of the adhesive layer away from the flame retardant substrate layer.

6. The fire extinguishing tape according to claim 1, characterized in that: The fire extinguishing capsule comprises a hard shell layer and a fire extinguishing medium filled in the shell layer, and the cracking temperature of the hard shell layer is 100-200°C.

7. The fire extinguishing tape according to claim 1, characterized in that: The fire extinguishing capsule has a spherical structure or an ellipsoidal structure.

8. The fire extinguishing tape according to claim 7, characterized in that: The fire extinguishing capsule has a spherical structure with a diameter of 100-500 μm.

9. The fire extinguishing tape according to claim 1, characterized in that: The material storage cavity is a cavity structure with a circular, triangular, square or elliptical cross section.

10. A production device for a fire extinguishing tape as claimed in any one of claims 1 to 9, characterized in that: It includes a hot pressing roller, a cold pressing roller, a feeding hopper, a laminating roller, a traction roller and a winding roller; the hot pressing roller and the cold pressing roller are arranged relatively to each other up and down and rotate relatively, a plurality of protrusions are formed on the surface of the hot pressing roller, and a plurality of grooves one matching the protrusions are formed on the cold pressing roller, and during the rotation process, the protrusions on the surface of the hot pressing roller can enter the groove one on the surface of the cold pressing roller; the feeding hopper is arranged downstream of the hot pressing roller and is used for quantitative feeding; the laminating roller and the traction roller are arranged downstream of the feeding hopper and the laminating roller and the traction roller are arranged up and down, and a plurality of grooves two matching the groove one are formed on the surface of the traction roller; the winding roller is arranged downstream of the laminating roller and is used for winding.

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