Flame-retardant composite material high-performance material fireproof and explosion-proof box

Abstract

The utility model discloses a fire-proof and explosion-proof box made of flame-retardant composite materials and high-performance materials, and belongs to the field of fire-proof and explosion-proof boxes. The fire-proof and explosion-proof box made of the flame-retardant composite material and the high-performance material comprises an upper arc cover, a rotating hinge is arranged on one side of the upper arc cover, the fire-proof and explosion-proof box further comprises a lower arc cover, the lower arc cover is arranged at the movable end of the rotating hinge, and macromolecule hydrophobic layers are arranged on the outer surfaces of the upper arc cover and the lower arc cover. The explosion-proof box solves the problems that quartz sand is filled between an inner arc cover and an outer arc cover and a pressure relief opening is formed in the outer arc cover in order to achieve the purposes of corrosion resistance, fire prevention and explosion prevention of an existing explosion-proof box, but the quartz sand is filled in the outer arc cover, and the explosion-proof box is generally installed in an outdoor environment and can be eroded by rainwater, so that the explosion-proof box cannot be damaged. And quartz sand arranged in the outer arc cover cannot prevent the outer arc cover from being eroded by rainwater.

Description

Technical Field

[0001] The utility model relates to the field of fire and explosion-proof boxes, in particular to a fire and explosion-proof box made of a flame-retardant composite material with high performance. Background Technique

[0002] With the construction of urban aesthetics, many power cables sink their joints into the cable trench, thus canceling the cable connection boxes on the streets, which brings certain potential safety hazards to the operation of other cables in the cable trench. The cable connection is the weak part of the whole cable operation. Once an explosion occurs at the cable connection, it often leads to an electrical fire, damaging the adjacent cables around, causing the accident to expand and bringing irreparable losses to the entire power system. To avoid the breakdown explosion at the cable connection from damaging the adjacent cables, a cable intermediate joint explosion-proof box with explosion-proof and fire-proof functions is installed at the cable connection, which can minimize the accident losses, avoid electrical fires and prevent secondary accidents;

[0003] Chinese Patent with the publication number of CN209184223U discloses an arc-shaped explosion-proof box for a cable intermediate joint, including an outer arc cover and an inner arc cover. Connecting ears are arranged on the sides of the outer arc cover and the inner arc cover, and a number of fixing holes for connecting screws to pass through are arranged on the connecting ears. Cable ports for cables to pass through are arranged at both ends of the outer arc cover and the inner arc cover. A pressure relief port is arranged on the outer arc cover, and quartz sand is filled between the outer arc cover and the inner arc cover. The utility model can be used at the cable joints on non-straight lines, has good waterproof, explosion-proof, fire-proof and electrical insulation properties, is corrosion-resistant, can effectively play the role of arc extinguishing, convert arc light energy into heat energy, isolate the arc energy in the box, and slow down the discharge of heat energy through the pressure relief port on the box body without impacting and damaging the adjacent cables.

[0004] In order to achieve the purpose of corrosion resistance and fire and explosion prevention, the explosion-proof box of the above patent fills quartz sand between the inner arc cover and the outer arc cover, and a pressure relief port is arranged on the outer arc cover. However, the quartz sand is filled inside the outer arc cover, and the explosion-proof box is generally installed in an outdoor environment and will be eroded by rainwater. The quartz sand arranged inside cannot prevent the outer arc cover from being eroded by rainwater. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fire and explosion-proof box made of a flame-retardant composite material with high performance. By providing a layer of polymer hydrophobic layer on the outer surfaces of the upper arc cover and the lower arc cover, and aerogel plates are arranged on the inner surfaces of the upper arc cover and the lower arc cover. The setting of the polymer hydrophobic layer can avoid direct contact between rainwater and the surface of the explosion-proof box when rainwater rains on the surface of the explosion-proof box, preventing the explosion-proof box from being corroded by rainwater. And the aerogel plate has excellent heat insulation performance. Even if the cable inside the explosion-proof box has a short circuit and explodes and burns, due to the isolation of temperature by the aerogel plate in the explosion-proof box, it will not cause the overall melting of the explosion-proof box and expose the internal cable to the external environment, solving the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A high-performance flame-retardant composite material fire and explosion-proof box, comprising an upper arc cover, one side of the upper arc cover is provided with a rotary hinge, and further comprising a lower arc cover, the lower arc cover is arranged on the movable end of the rotary hinge, a polymer hydrophobic layer is arranged on the outer surfaces of the upper arc cover and the lower arc cover, an aerogel plate is arranged on the inner walls of the upper arc cover and the lower arc cover, and pressure relief pipes are arranged at both ends of the upper arc cover and the lower arc cover.

[0007] Preferably, an insertion port is opened at one end of the pressure relief pipe far away from the upper arc cover and the lower arc cover, and the insertion port and the pressure relief pipe are integrally arranged.

[0008] Preferably, a limiting clamp block is arranged on the inner wall of the pressure relief pipe, and the limiting clamp block is adhesively connected to the pressure relief pipe.

[0009] Preferably, connecting plates are arranged on both the upper arc cover and the lower arc cover, and the connecting plates are integrally arranged with the upper arc cover and the lower arc cover.

[0010] Preferably, reserved bolt holes are opened on the connecting plates, and the reserved bolt holes and the connecting plates are integrally arranged.

[0011] Preferably, a fluorescent marking ring is arranged on the outer surfaces of the upper arc cover and the lower arc cover, and the fluorescent marking ring is adhesively connected to the upper arc cover and the lower arc cover.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, a polymer hydrophobic layer is arranged on the outer surfaces of the upper arc cover and the lower arc cover, and an aerogel plate is arranged on the inner surfaces of the upper arc cover and the lower arc cover. The setting of the polymer hydrophobic layer can prevent rainwater from directly contacting the surface of the explosion-proof box when rainwater hits the surface of the explosion-proof box, so as to prevent the explosion-proof box from being corroded by rainwater. And the aerogel plate has excellent heat insulation performance. Even if the cable inside the explosion-proof box has a short circuit and explodes, due to the isolation of temperature by the aerogel plate, the explosion-proof box will not melt as a whole and expose the internal cable to the external environment, effectively avoiding the problem that in order to achieve the purpose of corrosion resistance and fire and explosion protection, the existing explosion-proof box is filled with quartz sand between the inner arc cover and the outer arc cover, and a pressure relief port is opened on the outer arc cover. However, the quartz sand is filled inside the outer arc cover, and the explosion-proof box is generally installed in an outdoor environment, so it will be eroded by rainwater, and the quartz sand arranged inside cannot prevent the outer arc cover from being eroded by rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall external structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the overall left view structure of the present utility model;

[0016] Figure 3 This is a schematic structural diagram of the aerogel plate of the present utility model.

[0017] In the figure: 1. Upper arc cover; 2. Fluorescent marking ring; 3. Lower arc cover; 4. Rotating hinge; 5. Polymer hydrophobic layer; 6. Connecting plate; 7. Reserved bolt hole; 8. Pressure relief pipe; 9. Insertion port; 10. Limit clamping block; 11. Aerogel plate. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] In order to solve the problem in the prior art that in order to achieve the purpose of corrosion resistance and fire and explosion prevention, the explosion-proof box is filled with quartz sand between the inner arc cover and the outer arc cover, and a pressure relief port is opened on the outer arc cover. However, the quartz sand is filled in the outer arc cover and the explosion-proof box is generally installed in an outdoor environment, which will be eroded by rainwater, and the quartz sand arranged inside cannot prevent the outer arc cover from being eroded by rainwater. The following technical solutions are provided in this embodiment:

[0020] A flame-retardant composite high-performance material fire and explosion-proof box includes an upper arc cover 1, a rotating hinge 4 is arranged on one side of the upper arc cover 1, and further includes a lower arc cover 3. The lower arc cover 3 is arranged on the movable end of the rotating hinge 4. A polymer hydrophobic layer 5 is arranged on the outer surfaces of the upper arc cover 1 and the lower arc cover 3. An aerogel plate 11 is arranged on the inner walls of the upper arc cover 1 and the lower arc cover 3. Pressure relief pipes 8 are arranged at both ends of the upper arc cover 1 and the lower arc cover 3. An insertion port 9 is opened at one end of the pressure relief pipe 8 far from the upper arc cover 1 and the lower arc cover 3. The insertion port 9 and the pressure relief pipe 8 are integrally arranged. A limit clamping block 10 is arranged on the inner wall of the pressure relief pipe 8. The limit clamping block 10 is adhesively connected to the pressure relief pipe 8. Connecting plates 6 are arranged on both the upper arc cover 1 and the lower arc cover 3. The connecting plates 6 are integrally arranged with the upper arc cover 1 and the lower arc cover 3. Reserved bolt holes 7 are opened on the connecting plates 6. The reserved bolt holes 7 and the connecting plates 6 are integrally arranged. A fluorescent marking ring 2 is arranged on the outer surfaces of the upper arc cover 1 and the lower arc cover 3. The fluorescent marking ring 2 is adhesively connected to the upper arc cover 1 and the lower arc cover 3;

[0021] In this embodiment, please refer to Figures 1-3, a polymer hydrophobic layer 5 is provided on the outer surfaces of the upper arc cover 1 and the lower arc cover 3, and aerogel plates 11 are provided on the inner surfaces of the upper arc cover 1 and the lower arc cover 3. The setting of the polymer hydrophobic layer 5 can prevent rainwater from directly contacting the surface of the explosion-proof box when rainwater falls on the surface of the explosion-proof box, so as to prevent the explosion-proof box from being corroded by rainwater. Moreover, the aerogel plates 11 have excellent heat insulation performance. Even if the cables in the explosion-proof box are short-circuited and explode, because of the temperature isolation of the aerogel plates 11, the explosion-proof box will not melt as a whole and expose the internal cables to the external environment. And the limiting clamp blocks 10 are equilateral triangular prisms, and a plurality of limiting clamp blocks 10 are arranged in a circular pattern in the pressure relief pipe 8. There are gaps between each limiting clamp block 10. When an explosion occurs inside the explosion-proof box, the air wave generated by the explosion will spray out from the pressure relief pipe 8 through the gaps between the limiting clamp blocks 10;

[0022] Working principle: A polymer hydrophobic layer 5 is provided on the outer surfaces of the upper arc cover 1 and the lower arc cover 3, and aerogel plates 11 are provided on the inner surfaces of the upper arc cover 1 and the lower arc cover 3. The setting of the polymer hydrophobic layer 5 can prevent rainwater from directly contacting the surface of the explosion-proof box when rainwater falls on the surface of the explosion-proof box, so as to prevent the explosion-proof box from being corroded by rainwater. Moreover, the aerogel plates 11 have excellent heat insulation performance. Even if the cables in the explosion-proof box are short-circuited and explode, because of the temperature isolation of the aerogel plates 11, the explosion-proof box will not melt as a whole and expose the internal cables to the external environment. And the limiting clamp blocks 10 are equilateral triangular prisms, and a plurality of limiting clamp blocks 10 are arranged in a circular pattern in the pressure relief pipe 8. There are gaps between each limiting clamp block 10. When an explosion occurs inside the explosion-proof box, the air wave generated by the explosion will spray out from the pressure relief pipe 8 through the gaps between the limiting clamp blocks 10.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant composite material high-performance fireproof and explosion-proof box, comprising an upper arc cover (1), wherein a rotating hinge (4) is provided on one side of the upper arc cover (1); Features: It also comprises a lower arc cover (3), wherein the lower arc cover (3) is arranged on the movable end of the rotating hinge (4), a polymer hydrophobic layer (5) is arranged on the outer surface of the upper arc cover (1) and the lower arc cover (3), an aerogel plate (11) is arranged on the inner wall of the upper arc cover (1) and the lower arc cover (3), and pressure relief pipes (8) are arranged at both ends of the upper arc cover (1) and the lower arc cover (3).

2. The flame retardant composite material high performance fireproof and explosion proof box according to claim 1, characterized in that: The pressure relief pipe (8) is provided with an insertion opening (9) at one end away from the upper arc cover (1) and the lower arc cover (3); the insertion opening (9) and the pressure relief pipe (8) are integrally arranged.

3. The flame retardant composite material high performance fireproof and explosion proof box according to claim 2, characterized in that: A limit clamp block (10) is provided on the inner wall of the pressure relief pipe (8), and the limit clamp block (10) is adhesively connected to the pressure relief pipe (8).

4. The flame retardant composite material high performance fireproof and explosion proof box according to claim 1, characterized in that: The upper arc cover (1) and the lower arc cover (3) are both provided with a connecting plate (6), and the connecting plate (6) is integrally provided with the upper arc cover (1) and the lower arc cover (3).

5. The flame retardant composite material high performance fireproof and explosion proof box according to claim 4, characterized in that: A reserved bolt hole (7) is provided on the connecting plate (6), and the reserved bolt hole (7) and the connecting plate (6) are integrally arranged.

6. The flame retardant composite material high performance fireproof and explosion proof box according to claim 1, characterized in that: Fluorescent marking rings (2) are provided on the outer surfaces of the upper arc cover (1) and the lower arc cover (3), and the fluorescent marking rings (2) are adhesively connected to the upper arc cover (1) and the lower arc cover (3).

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