CN216056229U - Fire-resistant bus duct with double-layer heat-insulation steel shell - Google Patents
Fire-resistant bus duct with double-layer heat-insulation steel shell Download PDFInfo
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- CN216056229U CN216056229U CN202122380063.2U CN202122380063U CN216056229U CN 216056229 U CN216056229 U CN 216056229U CN 202122380063 U CN202122380063 U CN 202122380063U CN 216056229 U CN216056229 U CN 216056229U
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- bus duct
- cover plate
- steel shell
- copper bar
- upper cover
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Abstract
A double-layer heat-insulation steel shell fireproof bus duct comprises a bus duct inner steel shell, a bus duct outer steel shell and a bus duct copper bar conductor, wherein the bus duct outer steel shell comprises an outer upper cover plate, an outer lower cover plate and two outer side plates; the outer cladding of bus duct copper bar conductor has flexible aluminium silicate cotton board, and bus duct copper bar conductor includes four parallel arrangement's copper bar, and the copper bar all wraps the compound insulating strip of mineral substance outward. According to the utility model, the high-temperature-resistant rock wool is filled between the steel shell in the bus duct and the steel shell outside the bus duct, and after flame is insulated by the rock wool, the temperature of the inner layer is far lower than that of the flame outside, so that the mineral composite insulating tape of the inner layer is prevented from being damaged by the flame; through adopting bilayer structure design, effectively reduced bus duct size, increased fire-resistant bus duct fire-resistant time simultaneously, reached fire-resistant time 3 hours.
Description
Technical Field
The utility model relates to the technical field of bus ducts, in particular to a double-layer heat-insulation steel shell fireproof bus duct.
Background
The fire prevention power consumption generally is fire-resistant bus duct in large building, and along with building fire control requirement is higher and higher, in order that power supply can effectively be ensured when the conflagration takes place, fire-resistant bus duct needs higher temperature resistant and high temperature resistant time longer better, but is subject to the mounted position, and the bus duct size can not be done too big.
Therefore, there is a need to develop a simple and practical double-layer heat-insulating steel shell fire-resistant bus.
Disclosure of Invention
In order to overcome the problems in the prior art, the utility model aims to provide a simple and practical double-layer heat-insulation steel shell fireproof bus duct.
The utility model achieves the above purpose by the following technical means:
a double-layer heat-insulation steel shell fireproof bus duct comprises a bus duct inner steel shell, a bus duct outer steel shell and a bus duct copper bar conductor, wherein the bus duct outer steel shell comprises an outer upper cover plate, an outer lower cover plate and two outer side plates; interior upper cover plate, interior lower cover plate and two interior curb plates between form the second holding chamber, be equipped with bus duct copper bar conductor in this second holding intracavity, the outer cladding of bus duct copper bar conductor has flexible aluminium silicate cotton board, bus duct copper bar conductor includes four parallel arrangement's copper bar, and the outer equal cladding of copper bar has the compound insulating tape of mineral substance.
As a further proposal of the utility model, the thickness of the flexible aluminum silicate cotton board is 5 mm.
Compared with the prior art, the utility model has the beneficial effects that:
due to the adoption of the structural design, the copper bar of the copper bar conductor of the bus duct is wrapped by the mineral composite insulating tape, the temperature resistance can reach 950 ℃, and the copper bar conductor can be effectively protected to prevent short circuit; the copper bar is wrapped with a layer of flexible aluminum silicate plate to be isolated from the steel shell in the bus duct, so that the mineral composite insulating tape can be protected, the mineral composite insulating tape is prevented from being scraped by the steel shell in the bus duct, and the heat insulation effect can be achieved; high-temperature-resistant rock wool is filled between the steel shell in the bus duct and the steel shell outside the bus duct, and after flame is subjected to heat insulation by the rock wool, the temperature of the inner layer is far lower than that of flame outside, so that the mineral composite insulating tape of the inner layer is prevented from being damaged by the flame; through adopting bilayer structure design, effectively reduced bus duct size, increased fire-resistant bus duct fire-resistant time simultaneously, reached fire-resistant time 3 hours.
Drawings
FIG. 1 is a schematic structural view of a double-layer heat-insulation steel shell fireproof bus duct.
The reference numbers in the figures are respectively: (1) the mineral composite insulation belt comprises an outer upper cover plate, (2) an outer lower cover plate, (3) an outer side plate, (4) an inner upper cover plate, (5) an inner lower cover plate, (6) an inner side plate, (7) outer hexagon bolts, (8) rock wool, (9) a flexible aluminum silicate cotton plate, (10) copper bars and (11) a mineral composite insulation belt.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the double-layer heat insulation steel shell fireproof bus duct of the present invention comprises a bus duct inner steel shell, a bus duct outer steel shell and a bus duct copper bar conductor, wherein the bus duct outer steel shell comprises an outer upper cover plate 1, an outer lower cover plate 2 and two outer side plates 3, the two outer side plates 3 are fixed between the outer upper cover plate 1 and the outer lower cover plate 2 through outer hexagon bolts 7, a first accommodating cavity is formed between the outer upper cover plate 1, the outer lower cover plate 2 and the two outer side plates 3, a bus duct inner steel shell is arranged in the first accommodating cavity, the bus duct inner steel shell comprises an inner upper cover plate 4, an inner lower cover plate 5 and two inner side plates 6, the two inner side plates 6 are fixed between the inner upper cover plate 4 and the inner lower cover plate 5 through outer hexagon bolts 7, the inner upper cover plate 4 and the inner lower cover plate 5 are also fixed on the two outer side plates 3 through the outer hexagon bolts 7, and rock wool 8 is filled between the bus duct outer steel shell and the bus duct inner steel shell; interior upper cover plate 4, interior lower cover plate 5 and two interior curb plates 6 between form the second holding chamber, are equipped with bus duct copper bar conductor in this second holding intracavity, and the outer cladding of bus duct copper bar conductor has flexible aluminium silicate cotton board 9 that thickness is 5mm, and bus duct copper bar conductor includes four parallel arrangement's copper bar 10, and copper bar 10 all wraps the compound insulating strip of mineral substance 11 outward.
The bus duct copper bar conductor comprises four or five copper bars 10 and mineral composite insulating tapes 11, the copper bars 10 are wrapped by the mineral composite insulating tapes which can resist 950 ℃ in a winding way for three layers, and are tightly attached to prevent flame from invading the copper conductors and prevent the copper conductors from being oxidized at high temperature, the thickness of the mineral composite insulating tapes is less than 1 mm, and the size of the bus duct is effectively reduced.
A layer of flexible aluminum silicate cotton plate 9 with the thickness of 5mm is wrapped between the mineral composite insulating tape 11 and the steel shell in the bus duct, so that the mineral composite insulating tape is prevented from being scraped by the steel shell in the bus duct, and a further heat insulation effect is achieved.
In conclusion, the utility model solves the defects in the prior art through the structural design and has the characteristics of reasonable design, simplicity, practicability and the like.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides a fire-resistant bus duct of double-deck thermal-insulated steel casing which characterized in that: the outer steel shell of the bus duct comprises an outer upper cover plate, an outer lower cover plate and two outer side plates, the two outer side plates are fixed between the outer upper cover plate and the outer lower cover plate through outer hexagon bolts, a first accommodating cavity is formed between the outer upper cover plate, the outer lower cover plate and the two outer side plates, the inner steel shell of the bus duct is arranged in the first accommodating cavity, the inner steel shell of the bus duct comprises an inner upper cover plate, an inner lower cover plate and two inner side plates, the two inner side plates are fixed between the inner upper cover plate and the inner lower cover plate through outer hexagon bolts, the inner upper cover plate and the inner lower cover plate are further fixed on the two outer side plates through outer hexagon bolts, and rock wool is filled between the outer steel shell of the bus duct and the inner steel shell of the bus duct; interior upper cover plate, interior lower cover plate and two interior curb plates between form the second holding chamber, be equipped with bus duct copper bar conductor in this second holding intracavity, the outer cladding of bus duct copper bar conductor has flexible aluminium silicate cotton board, bus duct copper bar conductor includes four parallel arrangement's copper bar, and the outer equal cladding of copper bar has the compound insulating tape of mineral substance.
2. The double-deck fire-resistant bus duct with heat insulation steel shell as claimed in claim 1, wherein: the thickness of the flexible aluminum silicate cotton board is 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380063.2U CN216056229U (en) | 2021-09-29 | 2021-09-29 | Fire-resistant bus duct with double-layer heat-insulation steel shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380063.2U CN216056229U (en) | 2021-09-29 | 2021-09-29 | Fire-resistant bus duct with double-layer heat-insulation steel shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056229U true CN216056229U (en) | 2022-03-15 |
Family
ID=80607650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122380063.2U Active CN216056229U (en) | 2021-09-29 | 2021-09-29 | Fire-resistant bus duct with double-layer heat-insulation steel shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056229U (en) |
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2021
- 2021-09-29 CN CN202122380063.2U patent/CN216056229U/en active Active
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