CN212874126U - High-temperature-resistant, heat-insulating and flame-retardant cable - Google Patents
High-temperature-resistant, heat-insulating and flame-retardant cable Download PDFInfo
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- CN212874126U CN212874126U CN202020960913.9U CN202020960913U CN212874126U CN 212874126 U CN212874126 U CN 212874126U CN 202020960913 U CN202020960913 U CN 202020960913U CN 212874126 U CN212874126 U CN 212874126U
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Abstract
The utility model provides a high temperature resistant flame retarded cable that insulates against heat, include cable core, fire-resistant mica tape layer, insulating layer, wrinkle line copper sheathing layer and the oversheath layer that sets gradually from inside to outside, the oversheath layer is ceramic silastic-layer, and the insulating layer includes low temperature insulating layer and the medium temperature insulating layer that sets gradually from inside to outside, and the medium temperature insulating layer is made for 900 ~ 1100 ℃ by the highest service temperature nanometer thermal insulation material, and the low temperature insulating layer is made for 800 ~ 950 ℃ by the highest service temperature low temperature nanometer thermal insulation material. The utility model provides a high temperature resistant flame retarded cable that insulates against heat has excellent fire resistance and heat-proof quality, when the conflagration breaing out, still can normally work.
Description
Technical Field
The utility model relates to the technical field of cables, concretely relates to high temperature resistant flame retarded cable that insulates against heat.
Background
At present, there are various cables on the market, such as power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and the like. However, the cable generally has the defect of poor flame retardant effect, fire accidents easily occur, a large amount of gas harmful to human bodies is generated, the living environment is influenced, and economic loss is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the background art exists, the utility model provides a high temperature resistant flame retarded cable that insulates against heat.
The utility model provides a high temperature resistant thermal-insulated flame retarded cable, including cable core, fire-resistant mica tape layer, insulating layer, wrinkle line copper sheathing layer and the oversheath layer that sets gradually from inside to outside, the oversheath layer is ceramic silastic-layer, the insulating layer includes low temperature insulating layer and medium temperature insulating layer that sets gradually from inside to outside;
the middle-temperature heat insulation layer is made of a nano heat insulation material with the highest service temperature of 900-1100 ℃, and the low-temperature heat insulation layer is made of a low-temperature nano heat insulation material with the highest service temperature of 800-950 ℃.
Preferably, the heat-insulating cover further comprises a high-temperature heat-insulating layer, the high-temperature heat-insulating layer is located between the medium-temperature heat-insulating layer and the corrugated copper sleeve layer, and the high-temperature heat-insulating layer is made of fibers and/or nano materials, the highest using temperature of the fibers and/or the nano materials is 1250-1450 ℃.
Preferably, the high-temperature heat insulation layer is aluminum silicate ceramic fiber at 1260 ℃, zirconium-containing fiber at 1430 ℃, mullite fiber at 1600 ℃, alumina fiber at 1800 ℃, silica fiber at 1200 ℃ or silicon carbide fiber at 1400 ℃.
Preferably, the cable core comprises a plurality of wire cores, and silica aerogel is filled between the wire cores and the fire-resistant mica tape layer.
Preferably, the wire core comprises a conductor, and an insulating layer, a shielding layer and an inner sheath layer which are wrapped on the outer side of the conductor, wherein the inner sheath layer is made of a glass fiber reinforced zirconium phosphate modified halogen-free flame retardant polypropylene material.
Preferably, the glass fiber reinforced zirconium phosphate modified halogen-free flame-retardant polypropylene material is prepared by melting and blending alpha-ZrP modified halogen-free flame-retardant polypropylene and glass fiber by adopting a long fiber reinforced thermoplastic composite material online compression molding (LFT-D) method.
Preferably, the fire-resistant mica tape layer is a two-layer mica tape lapping layer, and the lapping directions of the two-layer mica tape lapping layer are opposite.
The utility model provides a high temperature resistant flame retarded cable that insulates against heat has excellent fire resistance and heat-proof quality, when the conflagration breaing out, still can normally work.
Drawings
Fig. 1 is the utility model provides a high temperature resistant thermal-insulated flame retarded cable's structural schematic diagram.
Detailed Description
Referring to fig. 1, the utility model provides a high temperature resistant, heat insulating and flame retardant cable, which comprises a cable core, a fire resistant mica tape layer 6, a thermal insulating layer, a corrugated copper sheath layer 10 and an outer sheath layer 11 which are arranged from inside to outside in sequence, wherein the outer sheath layer 11 is a ceramic silicon rubber layer, and the thermal insulating layer comprises a low temperature thermal insulating layer 7 and a medium temperature thermal insulating layer 8 which are arranged from inside to outside in sequence;
the middle-temperature heat-insulating layer 8 is made of a nano heat-insulating material with the highest service temperature of 900-1100 ℃, and the low-temperature heat-insulating layer 7 is made of a low-temperature nano heat-insulating material with the highest service temperature of 800-950 ℃.
In the utility model, the self-supporting ceramic product formed by the ceramic silicon rubber catching fire at high temperature has certain strength and can bear certain impact force, which can resist the ablation of 1000 ℃ open fire and keep the integrity of the product, and the ceramic silicon rubber is more environment-friendly during combustion without generating toxic gas and smoke; meanwhile, the wrinkle copper sheath layer 10 can increase the mechanical strength of the high-temperature-resistant heat-insulating flame-retardant cable, can resist the high temperature of 1000 ℃ during combustion, can be vulcanized with the ceramic silicon rubber layer into an integral structure, and increases the stability of the structure; and the fireproof mica tape layer 6, the low-temperature heat-insulating layer 7 and the medium-temperature heat-insulating layer 8 which are sequentially arranged are used for gradually insulating heat and reducing temperature, so that the fireproof mica tape layer 6 can play excellent flame-retardant and heat-insulating properties, and the temperature in the cable core is ensured, thereby ensuring the normal work of the cable core and ensuring the normal work of the cable during the ablation of open fire. Therefore, the utility model provides a high temperature resistant flame retarded cable that insulates against heat has excellent fire-resistant fire resistance and heat-proof quality, when the conflagration breaing out, still can normally work.
In order to further improve the fire-resistant and heat-insulating performance, in the embodiment, the thermal insulation structure further comprises a high-temperature thermal insulation layer 9, the high-temperature thermal insulation layer 9 is located between the medium-temperature thermal insulation layer 8 and the corrugated copper sheathing layer 10, and the high-temperature thermal insulation layer 9 is made of fibers and/or nano materials with the highest use temperature range of 1250-1450 ℃.
In the present embodiment, the high-temperature thermal insulation layer 9 is 1260 ℃ aluminum silicate ceramic fiber, 1430 ℃ zirconium-containing fiber, 1600 ℃ mullite fiber, 1800 ℃ alumina fiber, 1200 ℃ silica fiber, or 1400 ℃ silicon carbide fiber.
In order to further improve the heat-proof quality, avoid outside high temperature to influence the work of inside sinle silk, in this embodiment, the cable core includes a plurality of sinle silks, and it has silica aerogel 5 to fill between sinle silk and the fire-resistant mica tape layer 6.
In this embodiment, the core includes a conductor 1, and an insulating layer 2, a shielding layer 3 and an inner sheath layer 4 wrapped outside the conductor, where the inner sheath layer 4 is made of a glass fiber reinforced zirconium phosphate modified halogen-free flame retardant polypropylene material. The glass fiber reinforced zirconium phosphate modified halogen-free flame-retardant polypropylene material has excellent electrical insulating property and good flame retardance and mechanical property, so that the wire core has excellent insulating property, flame retardance and mechanical property.
Of course, in other embodiments, the inner jacket layer 4 may be made of other insulating materials.
In the embodiment, the glass fiber reinforced zirconium phosphate modified halogen-free flame-retardant polypropylene material is prepared by melting and blending alpha-ZrP modified halogen-free flame-retardant polypropylene and glass fiber by adopting a long fiber reinforced thermoplastic composite material online compression molding (LFT-D) method.
In order to improve this high temperature resistant thermal-insulated flame retarded cable's roundness and compactedness to improve the stability of structure, in this embodiment, fire-resistant mica tape layer 6 is two-layer mica tape around the covering, and two-layer mica tape around the covering around the package opposite direction.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A high-temperature-resistant heat-insulating flame-retardant cable is characterized by comprising a cable core, a fire-resistant mica tape layer (6), a heat-insulating layer, a corrugated copper sleeve layer (10) and an outer sheath layer (11) which are sequentially arranged from inside to outside, wherein the outer sheath layer (11) is a ceramic silicon rubber layer, and the heat-insulating layer comprises a low-temperature heat-insulating layer (7) and a medium-temperature heat-insulating layer (8) which are sequentially arranged from inside to outside;
the middle-temperature heat-insulating layer (8) is made of a nano heat-insulating material with the highest service temperature of 900-1100 ℃, and the low-temperature heat-insulating layer (7) is made of a low-temperature nano heat-insulating material with the highest service temperature of 800-950 ℃.
2. The high-temperature-resistant, heat-insulating and flame-retardant cable according to claim 1, further comprising a high-temperature heat-insulating layer (9), wherein the high-temperature heat-insulating layer (9) is located between the medium-temperature heat-insulating layer (8) and the corrugated copper sheath layer (10), and the high-temperature heat-insulating layer (9) is made of fibers and/or nano materials with the highest use temperature range of 1250-1450 ℃.
3. The high temperature resistant, heat insulating, and flame retardant cable of claim 2, wherein the high temperature insulation layer (9) is 1260 ℃ alumina silicate ceramic fiber, 1430 ℃ zirconium-containing fiber, 1600 ℃ mullite fiber, 1800 ℃ alumina fiber, 1200 ℃ silica fiber, or 1400 ℃ silicon carbide fiber.
4. The high temperature resistant, heat insulating and flame retardant cable according to any one of claims 1 to 3, characterized in that the cable core comprises a plurality of wire cores, and silica aerogel (5) is filled between the wire cores and the fire resistant mica tape layer (6).
5. The high-temperature-resistant, heat-insulating and flame-retardant cable according to claim 4, wherein the wire core comprises a conductor (1), and an insulating layer (2), a shielding layer (3) and an inner sheath layer (4) which are wrapped outside the conductor, and the inner sheath layer (4) is made of a glass fiber reinforced zirconium phosphate modified halogen-free flame-retardant polypropylene material.
6. The high-temperature-resistant, heat-insulating and flame-retardant cable as claimed in claim 1, wherein the fire-resistant mica tape layer (6) is a two-layer mica tape lapping layer, and the lapping directions of the two layers of mica tape lapping layer are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020960913.9U CN212874126U (en) | 2020-05-29 | 2020-05-29 | High-temperature-resistant, heat-insulating and flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020960913.9U CN212874126U (en) | 2020-05-29 | 2020-05-29 | High-temperature-resistant, heat-insulating and flame-retardant cable |
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| Publication Number | Publication Date |
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| CN212874126U true CN212874126U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020960913.9U Active CN212874126U (en) | 2020-05-29 | 2020-05-29 | High-temperature-resistant, heat-insulating and flame-retardant cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179621A (en) * | 2022-07-15 | 2022-10-14 | 航天特种材料及工艺技术研究所 | Heat-insulating cable sleeve and preparation method thereof |
| CN116884689A (en) * | 2023-06-12 | 2023-10-13 | 湖南麓源电力建设有限公司 | High-temperature-resistant flame-retardant cable |
| CN116884689B (en) * | 2023-06-12 | 2024-06-21 | 河北盛鹏线缆有限公司 | High-temperature-resistant flame-retardant cable |
-
2020
- 2020-05-29 CN CN202020960913.9U patent/CN212874126U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179621A (en) * | 2022-07-15 | 2022-10-14 | 航天特种材料及工艺技术研究所 | Heat-insulating cable sleeve and preparation method thereof |
| CN116884689A (en) * | 2023-06-12 | 2023-10-13 | 湖南麓源电力建设有限公司 | High-temperature-resistant flame-retardant cable |
| CN116884689B (en) * | 2023-06-12 | 2024-06-21 | 河北盛鹏线缆有限公司 | High-temperature-resistant flame-retardant cable |
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