CN218850340U

CN218850340U - Heat-dissipation fire-resistant bus duct

Info

Publication number: CN218850340U
Application number: CN202222303336.8U
Authority: CN
Inventors: 胡雄杰; 古彬彬; 钟胜锦; 温勇新
Original assignee: Guangdong Huali Electric Co ltd
Current assignee: Guangdong Huali Electric Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-04-11
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to a heat dissipation fire-resistant type bus duct, including bus duct casing and cooling tube, the bus duct casing is by the upper cover plate, the lower cover plate, the left side board, the right side board is constituteed, the upper cover plate, the lower cover plate, the left side board, the inside of right side board all is equipped with the cavity, the cavity intussuseption is filled with inorganic fire-proof material, be equipped with a plurality of groups of conductor copper bars in the bus duct casing, the outside of conductor copper bar is equipped with fire-resistant parcel layer, the space between each group of conductor copper bar is filled with solid phase change material, the clearance between conductor copper bar and the bus duct casing is filled with fire-resistant filler, the cooling tube includes heat dissipation section and heat absorption section, a plurality of evenly distributed cooling tubes have been inserted in the solid phase change material and the cooling tube extends outside the bus duct casing, the part that the cooling tube is located in solid phase change material is the heat absorption section, the part that the cooling tube extends outside the bus duct casing is the heat dissipation section, liquid phase change working medium is installed in the heat absorption section; the utility model discloses can effectively improve the fire resistance and the heat dispersion of bus duct.

Description

Heat-dissipation fire-resistant bus duct

Technical Field

The utility model relates to a bus duct technical field, concretely relates to heat dissipation fire-resistant type bus duct.

Background

With the emergence of modern engineering facilities and equipment, the power consumption of various industries is increased sharply, the traditional cable serving as a power transmission conductor cannot meet the requirement in a large-current transmission system, and the parallel connection of multiple cables brings great inconvenience to field installation, construction and connection. The bus duct produces as a novel distribution wire, and traditional bus duct does not possess fire resistance, in case the conflagration breaing out, just probably suffers the damage, influences the normal use of circuit, and the thermal diffusivity of bus duct in the use is very unsatisfactory simultaneously, can lead to the life of bus duct to shorten.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing a heat dissipation fire-resistant type bus duct, make it can solve traditional bus duct that mentions in the background art and do not possess the fire resistance and the very unsatisfactory problem of the thermal diffusivity of bus duct in the use.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a heat dissipation fire-resistant type bus duct, includes bus duct casing and cooling tube, the bus duct casing comprises upper cover plate, lower apron, left side board, right side board, the upper cover plate the lower apron the left side board the inside of right side board all is equipped with the cavity, the cavity intussuseption is filled with inorganic fire-proof material, be equipped with a plurality of groups of conductor copper bars in the bus duct casing, the outside of conductor copper bar is equipped with fire-resistant parcel layer, the space between each other of every group conductor copper bar is filled with solid phase change material, conductor copper bar with the clearance between the bus duct casing is filled with fire-resistant filler, the cooling tube includes heat dissipation section and heat absorption section, it has a plurality of evenly distributed to insert in the solid phase change material the cooling tube just the cooling tube extends outside the bus duct casing, the part that the cooling tube is located in the solid phase change material is the heat absorption section, the part that the cooling tube extends outside the bus duct casing is the heat dissipation section, is equipped with liquid phase change working medium in the heat absorption section.

Furthermore, the heat dissipation section is provided with heat dissipation fins.

Furthermore, the conductor copper bars are provided with 4 groups.

Furthermore, the inter-group distance of the conductor copper bars is equal.

Further, the distances from the heat absorbing section to the conductor copper bars on the two sides are equal.

The utility model has the advantages that:

the utility model discloses can overcome the drawback of prior art, it has inorganic fire-resistant material to fill through the inside cavity of upper cover plate, lower cover plate, left side board, right side board, be the first way fire wall, can effectively prevent the intensity of a fire to the inside diffusion of bus duct casing, the clearance packing between conductor copper bar and the bus duct casing has fire-resistant filler, be the second way fire wall, the outside of conductor copper bar is equipped with fire-resistant parcel layer, be the third way fire wall, can effectively prevent the intensity of a fire to the diffusion of conductor copper bar, when guaranteeing the conflagration, the conductor copper bar can normally work, the fire resistance of bus duct has been improved;

every group conductor copper bar space each other is filled with solid phase change material, solid phase change material can absorb the heat that the conductor copper bar produced at the during operation, solid phase change material gives the heat transfer for the cooling tube heat absorption section of inserting solid phase change material again, the liquid phase change working medium that is equipped with in the cooling tube heat absorption section is behind the absorbed heat, become the gaseous state by liquid state and rise to the heat dissipation section of cooling tube, gaseous state phase change working medium is behind the heat absorption of air at the heat dissipation section of cooling tube, become liquid state again and flow back to the heat absorption section of cooling tube, the heat dispersion of bus duct is further improved to the heat dissipation function through solid phase change material's heat absorption and cooling tube.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the whole body of the present invention.

1. A conductor copper bar; 2. a refractory coating layer; 3. a solid phase change material; 4. a refractory filler; 5. a radiating pipe; 6. an upper cover plate; 7. a lower cover plate; 8. a left side plate; 9. a right side plate; 10. a heat dissipating fin; 11. an inorganic fire-resistant material.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1, a heat-dissipating fire-resistant bus duct comprises a bus duct shell and a heat-dissipating pipe 5, wherein the bus duct shell is composed of an upper cover plate 6, a lower cover plate 7, a left side plate 8 and a right side plate 9, cavities are formed in the upper cover plate 6, the lower cover plate 7, the left side plate 8 and the right side plate 9, inorganic fireproof materials 11 are filled in the cavities, and the inorganic fireproof materials 11 are inorganic fireproof mud and can effectively prevent fire from spreading to the interior of the bus duct shell; 4 groups of conductor copper bars 1 are arranged in the bus duct shell, and the distances among the groups of conductor copper bars 1 are equal, so that the same radiating tubes 5 can be conveniently placed among the conductor copper bars 1 in each group in the follow-up process, and the manufacturing of the radiating tubes 5 is simplified; the outer side of the conductor copper bar 1 is provided with a fire-resistant wrapping layer 2, the fire-resistant wrapping layer 2 is a ceramic silicon rubber belt, a hard ceramic protective layer is formed under ablation of high-temperature flame, and the conductor copper bar 1 can work normally for a period of time; the gaps between each group of conductor copper bars 1 are filled with solid phase-change materials 3, and the solid phase-change materials 3 are foam copper/paraffin composite phase-change materials and are used for absorbing heat generated by the conductor copper bars during working; a gap between the conductor copper bar 1 and the bus duct shell is filled with a refractory filler 4, and the refractory filler 4 is a magnesium oxide mineral 4 which can effectively prevent the diffusion of fire to the conductor copper bar; a plurality of radiating pipes 5 which are uniformly distributed are inserted into the foamy copper/paraffin composite phase-change material 3 and extend out of the bus duct shell, the part of each radiating pipe 5, which is positioned in the foamy copper/paraffin composite phase-change material 3, is a heat absorption section, and the distances from the heat absorption section to the conductor copper bars 1 on the two sides are equal, so that the two sides of the heat absorption section, which are close to the conductor copper bars 1, are uniformly heated; the part of the radiating pipe 5 extending out of the bus duct shell is a radiating section, a liquid phase change working medium is filled in the heat absorbing section, the liquid phase change working medium is absolute ethyl alcohol, when the temperature of the heat absorbing section is overhigh, the absolute ethyl alcohol is changed into a gas state from the liquid state after absorbing heat and rises to the radiating section of the radiating pipe, the gas absolute ethyl alcohol is changed into the liquid state again after being absorbed by air in the radiating section of the radiating pipe and flows back to the heat absorbing section of the radiating pipe, and heat generated by the conductor copper bar during working is brought to the outside of the bus duct shell through the mutual conversion between the liquid state and the gas state of the absolute ethyl alcohol; the radiating section is provided with radiating fins 10, so that the radiating area of the radiating pipe 5 is increased, and the radiating speed of the gaseous absolute ethyl alcohol is increased.

The working principle is as follows:

as shown in fig. 1, when a fire occurs, because the inner cavities of the upper cover plate 6, the lower cover plate 7, the left side plate 8 and the right side plate 9 are filled with inorganic fire-proof mud 11, which is a first firewall capable of effectively preventing the fire from spreading to the inside of the bus duct shell, and the gap between the conductor copper bar 1 and the bus duct shell is filled with magnesium oxide minerals 4, which is a second firewall capable of effectively preventing the fire from spreading to the conductor copper bar 1, the outer side of the conductor copper bar is provided with a ceramic silicon rubber belt 2, a hard ceramic protective layer is formed under the ablation of high-temperature flame, and the conductor copper bar 1 is ensured to work normally for a period of time;

the gaps between every two groups of conductor copper bars 1 are filled with foam copper/paraffin composite phase-change materials 3, the foam copper/paraffin composite phase-change materials 3 can absorb heat generated by the conductor copper bars 1 during working, the foam copper/paraffin composite phase-change materials 3 transmit the heat to heat absorbing sections of the radiating pipes 5 inserted in the foam copper/paraffin composite phase-change materials 3, absolute ethyl alcohol filled in the heat absorbing sections of the radiating pipes 5 is changed into gas state from liquid state after absorbing the heat and rises to the heat radiating sections of the radiating pipes 5, the gas state absolute ethyl alcohol is changed into liquid state absolute ethyl alcohol again after the heat is absorbed by air in the heat radiating sections of the radiating pipes and flows back to the heat absorbing sections of the radiating pipes 3, and the heat generated by the conductor copper bars 1 during working is brought to the outside of the bus duct shell through the heat absorption of the foam copper/paraffin composite phase-change materials 3 and the heat radiating function of the radiating pipes 3.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a heat dissipation fire-resistant type bus duct, a serial communication port, including bus duct casing and cooling tube (5), the bus duct casing is by upper cover plate (6), apron (7) down, left side board (8), right side board (9) are constituteed, upper cover plate (6), apron (7) down, left side board (8), the inside of right side board (9) all is equipped with the cavity, the cavity intussuseption is filled with inorganic fire-resistant material (11), be equipped with a plurality of groups conductor copper bar (1) in the bus duct casing, the outside of conductor copper bar (1) is equipped with fire-resistant parcel layer (2), the space packing each other of every group conductor copper bar (1) has solid phase change material (3), clearance packing between conductor copper bar (1) and the bus duct casing has fire-resistant filler (4), cooling tube (5) and the cooling tube that have a plurality of evenly distributed in solid phase change material (3) extend outside the bus duct casing, the part that cooling tube (5) are located solid phase change material (3) is the heat absorption section, cooling tube (5) extend the outer part of the casing is the heat dissipation section, be equipped with liquid phase change working medium in the heat absorption section.

2. The heat-dissipating fire-resistant bus duct according to claim 1, wherein the heat-dissipating section is provided with heat-dissipating fins (10).

3. The heat dissipation fire-resistant bus duct according to claim 1, characterized in that there are 4 groups of conductor copper bars (1).

4. The heat dissipation fire-resistant bus duct according to claim 1, characterized in that the inter-group distances of the conductor copper bars (1) are equal.

5. The heat-dissipating fire-resistant bus duct according to claim 1, wherein the heat-absorbing section is equidistant from the conductor copper bars (1) on both sides.