Bus duct fireproof device

Abstract

A bus duct fireproof device provided by the present application comprises a bus duct main body, the bus duct main body comprises a plurality of conductive copper bars arranged side by side and a protective shell wrapping the conductive copper bars, the top of the protective shell is provided with a fireproof plate through a plurality of bolts, and the protective shell is formed by compounding a steel plate layer, a rock wool layer and a fireproof plastic layer. The front end face and the rear end face of the protective shell are each provided with a plurality of honeycomb-shaped cooling fins which are evenly arranged at equal intervals. Through cooperative use of the steel layer plate, the rock wool plate, the fireproof plastic layer, the calcium silicate plate and the magnesium calcium plate, a good fireproof effect can be achieved for the interior of the protective shell, more sufficient heat exchange can be conducted between the honeycomb-shaped cooling fins and surrounding air, heat in the protective shell can be dissipated more effectively, the heat transfer efficiency can be improved, and the service life of the protective shell is prolonged. The heat dissipation effect is remarkably improved, the honeycomb structure has natural stability, and the hexagonal unit structures support each other, so that stress can be better dispersed when the honeycomb structure bears external force.

Description

Technical Field

[0001] The utility model relates to the technical field of bus ducts, and in particular to a fire prevention device for a bus duct. Background Art

[0002] With the emergence of modern engineering facilities and equipment, electricity consumption in various industries has increased rapidly, especially with the emergence of numerous high-rise buildings and large factories and workshops. Traditional cables as transmission conductors can no longer meet the requirements in high-current transmission systems. The parallel use of multiple cables has brought many inconveniences to on-site installation and construction. Bus ducts have emerged as a new type of distribution conductor. However, the existing technology has the following shortcomings when used:

[0003] The outer shell of the bus duct is often made of a single layer or single material steel plate, and its fire protection effect is not very ideal. At the same time, the heat dissipation fins installed on the bus duct are mostly rectangular thin sheets, and the heat dissipation effect in actual use is average.

[0004] Therefore, a bus duct fire protection device is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to address the problems that the shell of the existing bus duct is often made of a single layer or a single material steel plate, and its fire protection effect is not very ideal. At the same time, the heat dissipation fins installed on the bus duct are mostly rectangular thin sheets, and the heat dissipation effect is average in actual use.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A bus duct fire protection device is provided to improve the above problems.

[0008] The specific application is as follows:

[0009] A bus duct fire protection device includes a bus duct main body, which includes multiple conductive copper bars arranged side by side and a protective shell wrapped around the outside of the conductive copper bars. A fireproof plate is installed on the top of the protective shell by multiple bolts. The protective shell is composed of a steel plate layer, a rock wool layer and a fireproof plastic layer. The front and rear end faces of the protective shell are both equipped with multiple honeycomb heat dissipation fins that are evenly and equidistantly arranged.

[0010] As a preferred technical solution of the present application, the fireproof board is formed by compounding a calcium silicate board and a magnesium calcium board, and the calcium silicate board is tightly fitted to the protective shell.

[0011] As a preferred technical solution of the present application, the left and right end faces of the protective shell are fixedly connected with protective baffles, and the protective baffles are fiberglass plates.

[0012] As a preferred technical solution of the present application, both the left and right end faces of the protective shell are installed with flame-retardant heat-insulating cotton sleeved on the conductive copper busbar.

[0013] As a preferred technical solution of the present application, the honeycomb heat dissipation fins are vertically arranged.

[0014] As a preferred technical solution of the present application, the fireproof plastic layer is made of polyvinyl chloride material.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the scheme of this application:

[0017] 1. The protective shell is made of a composite of steel plate layer, rock wool layer and fireproof plastic layer. The steel plate layer provides good mechanical strength and protection, the middle rock wool layer plays a role of heat insulation and fire prevention, and the inner fireproof plastic layer provides good insulation and flame retardant properties. This composite structure can provide more excellent fire protection performance. The fireproof board is made of a composite of calcium silicate board and magnesium calcium board. The calcium silicate board has high strength, good bending and compression resistance, good thermal insulation performance, and can effectively prevent heat transfer. The magnesium calcium board also has good flame retardant properties, which solves the problem in the existing technology that the shell of the bus duct is often made of a single layer or a single material steel plate, and its fire protection effect is not very ideal.

[0018] 2. Compared with traditional rectangular fins, honeycomb fins can provide a larger heat dissipation area under the same volume, and can conduct more sufficient heat exchange with the surrounding air, thereby more effectively dissipating the heat inside the protective shell. The heat dissipation effect is better in actual use, which solves the problem that the heat dissipation fins installed on the bus duct in the existing technology are mostly rectangular thin sheets, and the heat dissipation effect is general during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the overall structural schematic diagrams of a bus duct fire protection device provided in this application.

[0020] Figure 2 This is the second schematic diagram of the overall structure of a bus duct fire protection device provided in this application.

[0021] Figure 3 This is a schematic diagram of the front view of a bus duct fire protection device provided in this application.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the protective shell and protective plate in a bus duct fire protection device provided in this application.

[0023] Indicated in the figure:

[0024] 1. Bus duct body; 2. Conductive copper busbar; 3. Protective shell; 4. Fireproof board; 5. Steel plate layer; 6. Rock wool layer; 7. Fireproof plastic layer; 8. Honeycomb heat dissipation fins; 9. Calcium silicate board; 10. Magnesium calcium board; 11. Protective baffle; 12. Flame retardant thermal insulation cotton. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0026] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0030] Example:

[0031] like Figure 1-4As shown, a bus duct fire protection device proposed in this embodiment includes a bus duct main body 1, the bus duct main body 1 includes multiple conductive copper bars 2 arranged side by side and a protective shell 3 wrapped around the outside of the conductive copper bar 2, a fireproof plate 4 is installed on the top of the protective shell 3 by multiple bolts, the protective shell 3 is composited by a steel plate layer 5, a rock wool layer 6 and a fireproof plastic layer 7, the steel plate layer 5 provides good mechanical strength and protection, the rock wool layer 6 plays a role in heat insulation and fire prevention, and the fireproof plastic layer 7 provides good insulation and flame retardant properties, and the front and rear end faces of the protective shell 3 are both equipped with multiple honeycomb heat dissipation fins 8 that are evenly and equidistantly arranged. Compared with traditional rectangular heat dissipation fins, the honeycomb heat dissipation fins 8 can provide a larger heat dissipation area under the same volume, and can carry out more sufficient heat exchange with the surrounding air, thereby more effectively dissipating heat.

[0032] like Figure 1 and Figure 4 As shown, the fireproof board 4 is composed of a composite of a calcium silicate board 9 and a magnesium calcium board 10. The calcium silicate board 9 is tightly fitted to the protective shell 3. The calcium silicate board 9 has high strength, good bending and compression resistance, good thermal insulation performance, and can effectively prevent heat transfer. The magnesium calcium board 10 also has good flame retardant properties.

[0033] like Figure 1 As shown, the left and right end faces of the protective shell 3 are fixedly connected with protective baffles 11, and the protective baffles 11 are glass fiber reinforced plastic plates. The conductive copper bus 2 can be protected by the protective baffles 11.

[0034] like Figure 1 As shown, the left and right end faces of the protective shell 3 are both installed with flame-retardant heat-insulating cotton 12 sleeved on the conductive copper bus 2. The flame-retardant heat-insulating cotton 12 has good flame-retardant properties and can provide additional insulation protection.

[0035] like Figure 3 As shown, the honeycomb heat dissipating fins 8 are arranged vertically.

[0036] like Figure 4 As shown, the fireproof plastic layer 7 is made of polyvinyl chloride material, which has good insulation effect and flame retardant performance.

[0037] Specifically, when the bus duct fire protection device is in use: the protective shell 3 is made of a steel plate layer 5, a rock wool layer 6 and a fireproof plastic layer 7. The steel plate layer 5 provides good mechanical strength and protection. The middle rock wool layer 6 plays a role in heat insulation and fire prevention. The inner fireproof plastic layer 7 provides good insulation and flame retardant properties. This composite structure can provide more excellent fire protection performance. The calcium silicate board 9 has high strength, good bending and compression resistance, good thermal insulation performance, and can effectively prevent heat transfer. The magnesium calcium board 10 also has good flame retardant properties. Through the cooperation of the protective shell 3 and the fireproof board 4 The use of the honeycomb heat sink 8 can provide a better fire prevention effect on the inside of the protective shell 3. At the same time, compared with the traditional rectangular heat sink fins, the honeycomb heat sink fins 8 can provide a larger heat dissipation area under the same volume, and can more fully exchange heat with the surrounding air, thereby more effectively dissipating the heat inside the protective shell. The honeycomb design can guide the air to form a more complex flow path, which helps to improve the heat transfer efficiency and significantly improve the heat dissipation effect. The honeycomb structure has natural stability, and its hexagonal unit structure supports each other, so that it can better disperse stress when subjected to external force.

[0038] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A bus duct fire protection device, comprising a bus duct body (1), characterized in that: The busbar main body (1) comprises a plurality of conductive copper bars (2) arranged side by side and a protective shell (3) wrapped around the outside of the conductive copper bars (2); a fireproof plate (4) is installed on the top of the protective shell (3) by means of a plurality of bolts; the protective shell (3) is composited by a steel plate layer (5), a rock wool layer (6) and a fireproof plastic layer (7); and a plurality of honeycomb heat dissipation fins (8) arranged evenly and equidistantly are installed on the front and rear end surfaces of the protective shell (3).

2. A bus duct fire protection device according to claim 1, characterized in that: The fireproof board (4) is formed by compounding a calcium silicate board (9) and a magnesium calcium board (10), and the calcium silicate board (9) is tightly fitted to the protective shell (3).

3. A bus duct fire protection device according to claim 1, characterized in that: The left and right end surfaces of the protective shell (3) are both fixedly connected with protective baffles (11), and the protective baffles (11) are glass fiber reinforced plastic plates.

4. A bus duct fire protection device according to claim 1, characterized in that: The left and right end surfaces of the protective shell (3) are both provided with flame-retardant heat-insulating cotton (12) sleeved on the conductive copper busbar (2).

5. The bus duct fire protection device according to claim 1, characterized in that: The honeycomb-shaped heat dissipation fins (8) are arranged vertically.

6. A bus duct fire protection device according to claim 1, characterized in that: The fireproof plastic layer (7) is made of polyvinyl chloride material.

Images