Flame-retardant cable bridge for petrochemical plant

Abstract

The utility model relates to the technical field of cable bridges, and discloses a flame-retardant cable bridge for petrochemical factories, which solves the problem that the existing cable bridge is poor in flame retardance, heat insulation and impact resistance, and comprises a cable bridge body and a bridge cover plate connected to the top end of the cable bridge body. The bridge cover plate and the cable bridge body are of a clamping connection structure, flame-retardant coatings are fixedly arranged on the outer surfaces of the cable bridge body and the bridge cover plate, an isolation layer is arranged on the inner side wall of the cable bridge body, and a plurality of built-in fire extinguishing assemblies are fixedly arranged at the top end in the bridge cover plate; by means of the cable bridge, the internal and external flame retardant performance can be improved, emergency fire extinguishing can be achieved, meanwhile, good heat insulation and impact resistance are achieved, and the use safety is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable bridges, in particular to a flame-retardant cable bridge used in petrochemical plants. Background Art

[0002] Cable trays are used for laying cables and are widely used in various industries. Petrochemical plants also usually install cable trays. The cable trays used in petrochemical plants have better requirements and need to have basic fire retardant properties, as well as heat insulation and impact resistance. Existing cable trays usually only have one layer of flame retardant coating to achieve the flame retardant effect. Their functions are relatively limited and they do not have heat insulation and impact resistance. When an external explosion occurs, it will quickly cause damage to the cable. When the cable catches fire due to short circuit, overload, etc., it is impossible to extinguish the fire urgently, and the safety of use is not good. Therefore, the present application proposes a flame retardant cable tray for use in petrochemical plants. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a flame retardant cable tray for petrochemical plants, which effectively solves the problems of poor flame retardancy, heat insulation and impact resistance of the existing cable trays.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flame-retardant cable tray for petrochemical plants, comprising a cable tray body and a tray cover, wherein the tray cover is connected to the top of the cable tray body, the tray cover and the cable tray body are a snap-on connection structure, the outer surfaces of the cable tray body and the tray cover are fixedly provided with a flame-retardant coating, the inner side wall of the cable tray body is provided with an isolation layer, and a plurality of built-in fire extinguishing components are fixedly provided at the top of the interior of the tray cover.

[0005] Preferably, the isolation layer is composed of a heat-insulating inner layer and a fire-proof inner layer, the heat-insulating inner layer is connected to the inner surface of the cable tray body, and the fire-proof inner layer is connected to the inner surface of the heat-insulating inner layer.

[0006] Preferably, the top ends of both sides of the cable tray body are provided with strip-shaped slots, and both sides of the interior of the cable tray cover are fixedly provided with limiting strips matching the strip-shaped slots.

[0007] Preferably, inner clamping plates matching the cable tray body are fixedly provided on both sides of the top inner side of the cable tray cover plate, and a sealing gasket strip is fixedly provided on one side of the inner clamping plate.

[0008] Preferably, a U-shaped inner cavity is provided inside the cable tray body, a plurality of supports are fixedly provided at the bottom of the U-shaped inner cavity, a plurality of buffer rings are fixedly provided on both sides of the U-shaped inner cavity, and the interior of the U-shaped inner cavity is filled with a heat insulating filling layer.

[0009] Preferably, a horizontal inner cavity is provided inside the bridge cover plate, a plurality of buffer rings 2 are fixedly provided inside the horizontal inner cavity, and the interior of the horizontal inner cavity is filled with a second heat insulation filling layer.

[0010] Preferably, the built-in fire extinguishing assembly is composed of a plurality of elastic straps, a strip box body, a sealing frame and a hot-melt sealing film. The strip box body is connected to the bottom end of the bridge cover plate through the elastic strap, the sealing frame is located between the strip box body and the elastic strap, the hot-melt sealing film is located between the strip box body and the sealing frame, and the interior of the strip box body is filled with fire extinguishing dry powder.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) During operation, the flame retardant coating can improve the external flame retardant performance of the cable tray, and the isolation layer composed of the heat-insulating inner layer and the fire-proof inner layer can improve the internal flame retardant and fire-proof performance of the cable tray. At the same time, the cable tray has heat-insulating performance. The built-in fire extinguishing assembly composed of a plurality of elastic bands, a strip box body, a sealing frame body and a hot-melt sealing film can be provided to perform emergency fire extinguishing when the cable catches fire to prevent the fire from spreading;

[0013] (2) By providing a U-shaped inner cavity, a buffer ring 1, a thermal insulation filling layer 1, a horizontal inner cavity, a buffer ring 2 and a thermal insulation filling layer 2, the impact resistance of the cable tray body and the tray cover can be improved, and the thermal insulation performance can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 This is one of the schematic diagrams of the flame-retardant cable tray structure used in petrochemical plants of the utility model;

[0017] Figure 2 This is the second schematic diagram of the flame-retardant cable tray structure used in petrochemical plants of the utility model;

[0018] Figure 3 This is a cross-sectional view of the cable tray body of the utility model;

[0019] Figure 4 This is a cross-sectional view of the bridge cover of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the built-in fire extinguishing component of the utility model;

[0021] In the figure: 1. Cable tray body; 2. Cable tray cover; 3. Flame retardant coating; 4. Isolation layer; 5. Built-in fire extinguishing assembly; 6. Insulating inner layer; 7. Fireproof inner layer; 8. Strip slot; 9. Limiting strip; 10. Inner plate; 11. Sealing strip; 12. U-shaped inner cavity; 13. Support; 14. Buffer ring one; 15. Insulating filling layer one; 16. Horizontal inner cavity; 17. Buffer ring two; 18. Insulating filling layer two; 19. Elastic band; 20. Strip box body; 21. Sealing frame; 22. Hot-melt sealing film. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Depend on Figures 1 to 4 The utility model provides a flame-retardant cable tray for petrochemical plants, comprising a cable tray body 1 and a tray cover 2, the tray cover 2 being connected to the top of the cable tray body 1, the tray cover 2 and the cable tray body 1 being a snap-on connection structure, the outer surfaces of the cable tray body 1 and the tray cover 2 being fixedly provided with a flame-retardant coating 3, the inner side wall of the cable tray body 1 being provided with an isolation layer 4, a plurality of built-in fire extinguishing components 5 being fixedly provided at the top of the interior of the tray cover 2, the isolation layer 4 being composed of a heat-insulating inner layer 6 and a fireproof inner layer 7, the heat-insulating inner layer 6 being connected to the inner surface of the cable tray body 1, and the fireproof inner layer 7 being connected to the inner surface of the heat-insulating inner layer 6;

[0024] The flame retardant coating 3 can improve the external flame retardant and fireproof performance, the heat insulating inner layer 6 and the fireproof inner layer 7 can improve the flame retardant and heat insulating performance inside the cable tray, and the built-in fire extinguishing component 5 can be used to extinguish the cable in an emergency, thereby improving the safety of use;

[0025] Depend on Figures 1 to 4It is given that the tops of both sides of the cable tray body 1 are provided with strip-shaped card slots 8, and the inside of the bridge cover plate 2 is fixedly provided with limit card strips 9 matching the strip-shaped card slots 8 on both sides, and the inside of the bridge cover plate 2 is fixedly provided with inner card plates 10 matching the cable tray body 1 on both sides of the top of the inside, and a sealing pad strip 11 is fixedly provided on one side of the inner card plate 10, and a U-shaped inner cavity 12 is provided inside the cable tray body 1, and a plurality of supports 13 are fixedly provided at the bottom of the U-shaped inner cavity 12, and a plurality of buffer rings 14 are fixedly provided on both sides of the U-shaped inner cavity 12, and the inside of the U-shaped inner cavity 12 is filled with a heat insulating filling layer 15, and a horizontal inner cavity 16 is provided inside the bridge cover plate 2, and a plurality of buffer rings 17 are fixedly provided inside the horizontal inner cavity 16, and the inside of the horizontal inner cavity 16 is filled with a heat insulating filling layer 18;

[0026] Through the bar-shaped card slot 8 and the limit card strip 9, the cable tray body 1 and the bridge cover plate 2 can be connected and limited to improve the stability of the connection. The sealing pad strip 11 and the inner card plate 10 can improve the sealing of the connection between the cable tray body 1 and the bridge cover plate 2. Through the U-shaped inner cavity 12, the buffer ring 14, the heat insulation filling layer 15, the horizontal inner cavity 16, the buffer ring 2 17 and the heat insulation filling layer 2 18, the overall impact resistance of the cable tray body 1 and the bridge cover plate 2 can be improved, and the heat insulation performance of the cable tray body 1 and the bridge cover plate 2 can be further improved.

[0027] Depend on Figure 1 , Figure 2 , Figure 4 and Figure 5 It is given that the built-in fire extinguishing assembly 5 is composed of a plurality of elastic bands 19, a strip box body 20, a sealing frame 21 and a hot-melt sealing film 22. The strip box body 20 is connected to the bottom end of the bridge cover 2 through the elastic band 19, the sealing frame 21 is located between the strip box body 20 and the elastic band 19, the hot-melt sealing film 22 is located between the strip box body 20 and the sealing frame 21, and the interior of the strip box body 20 is filled with fire extinguishing dry powder;

[0028] When the cable catches fire due to short circuit, overload or other faults, the hot-melt sealing film 22 melts due to the heat, and the fire-extinguishing dry powder inside the strip box body 20 automatically falls off, thereby enabling emergency fire extinguishing of the cable, reducing the possibility of flame spread, and ensuring safety of use. The hot-melt sealing film 22 can be replaced later, and the fire-extinguishing dry powder can be filled inside the strip box body 20.

[0029] During operation, by providing a flame-retardant coating, the external flame-retardant performance of the cable tray can be improved. By providing an isolation layer composed of a heat-insulating inner layer and a fire-proof inner layer, the internal flame-retardant and fire-proof performance of the cable tray can be improved, and at the same time, it has heat-insulating performance. By providing a built-in fire extinguishing component composed of a number of elastic straps, a strip box body, a sealing frame body and a hot-melt sealing film, emergency fire extinguishing can be carried out when a cable catches fire to prevent the spread of fire; by providing a U-shaped inner cavity, a buffer ring one, a heat-insulating filling layer one, a horizontal inner cavity, a buffer ring two and a heat-insulating filling layer two, the impact resistance of the cable tray body and the tray cover can be improved, and the heat-insulating performance can be further improved.

Claims

1. A flame-retardant cable tray for use in a petrochemical plant, comprising a cable tray body (1) and a tray cover (2), characterized in that: The bridge cover plate (2) is connected to the top of the cable bridge body (1); the bridge cover plate (2) and the cable bridge body (1) are in a snap-on connection structure; the outer surfaces of the cable bridge body (1) and the bridge cover plate (2) are both fixedly provided with a flame retardant coating (3); the inner side wall of the cable bridge body (1) is provided with an isolation layer (4); and a plurality of built-in fire extinguishing components (5) are fixedly provided at the top of the bridge cover plate (2).

2. The flame-retardant cable tray for petrochemical plants according to claim 1, characterized in that: The isolation layer (4) is composed of a heat-insulating inner layer (6) and a fire-proof inner layer (7); the heat-insulating inner layer (6) is connected to the inner surface of the cable tray body (1); and the fire-proof inner layer (7) is connected to the inner surface of the heat-insulating inner layer (6).

3. The flame-retardant cable tray for petrochemical plants according to claim 1 is characterized in that: The top ends of both sides of the cable tray body (1) are provided with strip-shaped card slots (8), and both sides of the interior of the cable tray cover plate (2) are fixedly provided with limit card strips (9) matching the strip-shaped card slots (8).

4. The flame-retardant cable tray for petrochemical plants according to claim 1, characterized in that: Internal clamping plates (10) matching the cable tray body (1) are fixedly arranged on both sides of the top end of the cable tray cover plate (2), and a sealing pad strip (11) is fixedly arranged on one side of the internal clamping plate (10).

5. The flame-retardant cable tray for petrochemical plants according to claim 1 is characterized in that: The cable tray body (1) is provided with a U-shaped inner cavity (12) inside, a plurality of supports (13) are fixedly provided at the bottom of the U-shaped inner cavity (12), a plurality of buffer rings (14) are fixedly provided on both sides of the U-shaped inner cavity (12), and the interior of the U-shaped inner cavity (12) is filled with a heat insulating filling layer (15).

6. The flame-retardant cable tray for petrochemical plants according to claim 1, characterized in that: The bridge cover plate (2) is provided with a horizontal inner cavity (16) inside, a plurality of buffer rings (17) are fixedly provided inside the horizontal inner cavity (16), and the interior of the horizontal inner cavity (16) is filled with a second heat insulation filling layer (18).

7. The flame-retardant cable tray for petrochemical plants according to claim 1, characterized in that: The built-in fire extinguishing assembly (5) is composed of a plurality of elastic bands (19), a strip box body (20), a sealing frame body (21) and a hot-melt sealing film (22); the strip box body (20) is connected to the bottom end of the bridge frame cover plate (2) through the elastic bands (19); the sealing frame body (21) is located between the strip box body (20) and the elastic bands (19); the hot-melt sealing film (22) is located between the strip box body (20) and the sealing frame body (21); and the interior of the strip box body (20) is filled with fire extinguishing dry powder.

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