Expansion type fireproof plate of cable channel

Abstract

The utility model discloses an expansion type fireproof plate of a cable channel, which belongs to the technical field of fireproof plates and comprises a protective shell, an aluminum foil layer is attached to the outer side wall of the protective shell, a reinforcing net is fixedly connected to one side, far away from the aluminum foil layer, of the protective shell, and a graphite plate is attached to one side, far away from the protective shell, of the reinforcing net. A heat conduction plate is attached to the side, away from the reinforcing net, of the graphite plate, and a fire insulation plate is attached to the side, away from the graphite plate, of the heat conduction plate. According to the expansion type fireproof plate of the cable channel, the fireproof plate is composed of the protective shell, the aluminum foil layer, the reinforcing net, the graphite plate, the heat conduction plate and the fire insulation plate, when a fire occurs in the cable channel, the fire is blocked through the fire insulation plate, heat is transmitted into the graphite plate through the heat conduction plate, and the graphite plate can rapidly expand to form a compact fireproof layer; the flame and smoke are effectively prevented from spreading, reliable fireproof protection is provided for the cable, the graphite plate in the fireproof plate can be replaced, and loss of other materials is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireproof boards, and specifically relates to an intumescent fireproof board for cable channels. Background Art

[0002] In a cable channel, the safety of the cable channel directly affects the stable operation of the entire power system. The fire risk has always been an important potential safety hazard. Once a fire occurs, the flame and smoke will spread rapidly, threatening the safety of equipment and personnel.

[0003] Generally, a fireproof board is installed inside the cable channel. After a fire occurs, the expansion material layer installed inside the fireproof board expands when heated. After the expansion material layer expands, it cannot be restored, resulting in the fireproof board being unable to be used continuously and needing to be replaced. However, the existing fireproof board cannot replace the expansion material layer, so the entire fireproof board needs to be replaced, which in turn causes losses to the remaining materials.

[0004] To solve the above problems, an intumescent fireproof board for cable channels is proposed in this application. Summary of the Utility Model

[0005] In view of the problems in the related art, the utility model proposes an intumescent fireproof board for cable channels to overcome the above technical problems existing in the related art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An intumescent fireproof board for cable channels includes a protective shell. An aluminum foil layer is attached to the outer side wall of the protective shell. A reinforcing mesh is fixedly connected to the side of the protective shell away from the aluminum foil layer. A graphite plate is attached to the side of the reinforcing mesh away from the protective shell. A heat conducting plate is attached to the side of the graphite plate away from the reinforcing mesh. A fire separation plate is attached to the side of the heat conducting plate away from the graphite plate.

[0008] Preferably, a first fixing hole is opened on the side of the protective shell away from the reinforcing mesh, and a second fixing hole is opened on the side of the fire separation plate away from the heat conducting plate. A threaded sleeve is inserted through the second fixing hole of the fire separation plate, and a threaded rod is inserted through the first fixing hole of the protective shell.

[0009] By providing the first fixing hole, the second fixing hole, the threaded sleeve and the threaded rod, it is realized that the threaded sleeve and the threaded rod are inserted into the first fixing hole and the second fixing hole, so that the protective shell and the fire separation plate clamp the reinforcing mesh, the graphite plate and the heat conducting plate inside, and each layer is tightly attached together.

[0010] Preferably, fixing holes are penetrated through the outer side walls of the graphite plate and the heat conducting plate, and the outer side wall of the threaded rod is threadedly connected to the inner side wall of the threaded sleeve.

[0011] By setting the threaded sleeve and the threaded rod, it is realized that by threadedly connecting the threaded sleeve and the threaded rod, the threaded sleeve and the threaded rod can quickly disassemble and assemble each layer.

[0012] Preferably, the reinforcing mesh is composed of a fiberglass mesh, the heat conducting plate is composed of soft silica gel, and the fireproofing plate is composed of alumina.

[0013] By setting the reinforcing mesh, the heat conducting plate and the fireproofing plate, it is realized that the structural strength of the protective shell can be increased through the reinforcing mesh, the fireproofing plate can prevent the flame from damaging the fireproof board, and the heat can be quickly transmitted to the surface of the graphite board through the heat conducting plate, causing the graphite board to expand.

[0014] In summary, the technical effects and advantages of the present utility model: The intumescent fireproof board of this cable channel is composed of a protective shell, an aluminum foil layer, a reinforcing mesh, a graphite board, a heat conducting plate and a fireproofing plate. When a fire occurs inside the cable channel, the fire is blocked by the fireproofing plate, and the heat is transmitted to the inside of the graphite board through the heat conducting plate, enabling the graphite board to quickly expand to form a dense fireproof layer, effectively preventing the spread of flames and smoke, providing reliable fire protection for the cable, and the graphite board inside the fireproof board can be replaced to avoid the loss of other materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a schematic diagram of the reinforcing mesh and its related structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the threaded rod and its related structure of the present utility model.

[0018] In the figure: 1, protective shell; 2, aluminum foil layer; 3, reinforcing mesh; 4, graphite board; 5, heat conducting plate; 6, fireproofing plate; 7, first fixing hole; 8, second fixing hole; 9, threaded sleeve; 10, threaded rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] 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 of the embodiments.

[0020] Refer to Figures 1 - 3, An expandable fireproof board for a cable channel, comprising a protective shell 1. An aluminum foil layer 2 is attached to the outer side wall of the protective shell 1. A reinforcing mesh 3 is fixedly connected to the side of the protective shell 1 away from the aluminum foil layer 2. A graphite board 4 is attached to the side of the reinforcing mesh 3 away from the protective shell 1. A heat conducting board 5 is attached to the side of the graphite board 4 away from the reinforcing mesh 3. A fire separating board 6 is attached to the side of the heat conducting board 5 away from the graphite board 4. By attaching the aluminum foil layer 2 to the outer side wall of the protective shell 1, the aluminum foil layer 2 covers the surface of the protective shell 1, playing a role in reflecting heat, reducing the direct effect of heat on the protective shell 1. By installing the graphite board 4 inside the fireproof board, the fireproof board can protect both the inside and outside of the cable channel, preventing the external part of the cable channel from affecting the cables inside and also preventing the fire occurring inside from spreading to the outside of the channel.

[0021] Refer to Figure 3 , A first fixing hole 7 is provided on the side of the protective shell 1 away from the reinforcing mesh 3. A second fixing hole 8 is provided on the side of the fire separating board 6 away from the heat conducting board 5. A threaded sleeve 9 is inserted through the second fixing hole 8 of the fire separating board 6. A threaded rod 10 is inserted through the first fixing hole 7 of the protective shell 1. The protective shell 1, the reinforcing mesh 3, the graphite board 4, the heat conducting board 5 and the fire separating board 6 can be clamped and fixed by the threaded sleeve 9 and the threaded rod 10, so that the protective shell 1, the reinforcing mesh 3, the graphite board 4, the heat conducting board 5 and the fire separating board 6 are closely attached together under the action of the threaded sleeve 9 and the threaded rod 10, preventing the fireproof board from delaminating during use and affecting the normal use of the fireproof board.

[0022] Refer to Figure 3 , Fixing holes are penetrated through the outer side walls of the graphite board 4 and the heat conducting board 5. The outer side wall of the threaded rod 10 is threadedly connected to the inner side wall of the threaded sleeve 9. By adjusting the threaded sleeve 9 and the threaded rod 10, the threaded sleeve 9 and the threaded rod 10 can fix the multi-layer structure. And after the graphite board 4 is used, by removing the threaded sleeve 9 and the threaded rod 10, the graphite board 4 can be quickly replaced, so that the rest of the fireproof board can be reused, avoiding waste of resources.

[0023] Refer to Figures 1 - 2 , The reinforcing mesh 3 is composed of a glass fiber mesh, the heat conducting board 5 is composed of soft silicone, and the fire separating board 6 is composed of alumina. By installing the reinforcing mesh 3 on the side of the protective shell 1 away from the aluminum foil layer 2, the structural strength of the protective shell 1 is enhanced, preventing the protective shell 1 from deforming or cracking during the expansion process. The heat conducting board 5 being made of soft silicone can effectively transfer heat into the graphite board 4, so that the graphite board 4 expands, thereby protecting against fire.

[0024] Working principle: By arranging the protective shell 1, the reinforcing mesh 3, the graphite plate 4, the heat conducting plate 5 and the fire separation plate 6 in sequence, inserting the threaded sleeve 9 into the interior of the second fixing hole 8, inserting the threaded rod 10 into the interior of the first fixing hole 7, and threadedly connecting the threaded rod 10 with the threaded sleeve 9, the protective shell 1, the reinforcing mesh 3, the graphite plate 4, the heat conducting plate 5 and the fire separation plate 6 can be effectively clamped and fixed, thereby avoiding separation of multiple layers. By covering the outer sidewall of the protective shell 1 with the aluminum foil layer 2, the protective shell 1 is protected. By disassembling the threaded rod 10 and the threaded sleeve 9, the protective shell 1, the reinforcing mesh 3, the graphite plate 4, the heat conducting plate 5 and the fire separation plate 6 can be quickly disassembled, thereby quickly disassembling the graphite plate 4 and then replacing the graphite plate 4.

[0025] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An intumescent fireproof board for a cable channel, comprising a protective shell (1), characterized in that, The outer side wall of the protective shell (1) is attached with an aluminum foil layer (2). One side of the protective shell (1) away from the aluminum foil layer (2) is fixedly connected with a reinforcing mesh (3). One side of the reinforcing mesh (3) away from the protective shell (1) is attached with a graphite plate (4). One side of the graphite plate (4) away from the reinforcing mesh (3) is attached with a heat conducting plate (5). One side of the heat conducting plate (5) away from the graphite plate (4) is attached with a fireproof plate (6).

2. The intumescent fireproof board for a cable channel according to claim 1, wherein One side of the protective shell (1) away from the reinforcing mesh (3) is provided with a first fixing hole (7). One side of the fireproof plate (6) away from the heat conducting plate (5) is provided with a second fixing hole (8). A threaded sleeve (9) is inserted through the second fixing hole (8) of the fireproof plate (6). A threaded rod (10) is inserted through the first fixing hole (7) of the protective shell (1).

3. The intumescent fireproof board for a cable channel according to claim 2, characterized in that, Fixing holes are formed through the outer side walls of the graphite plate (4) and the heat conducting plate (5). The outer side wall of the threaded rod (10) is threadedly connected with the inner side wall of the threaded sleeve (9).

4. The intumescent fireproof board for a cable channel according to claim 1, wherein, The reinforcing mesh (3) is composed of a glass fiber mesh. The heat conducting plate (5) is composed of soft silica gel. The fireproof plate (6) is composed of alumina.

Images