A high temperature resistant cable

Abstract

The utility model discloses a kind of high-temperature-resistant cables, including copper inner core, copper inner core is provided with self-adapting insulating layer outside, self-adapting insulating layer is provided with aerogel reinforced glass fiber braiding layer outside, aerogel reinforced glass fiber braiding layer is provided with 316L stainless steel belt outside, 316L stainless steel belt is provided with yttrium stabilized zirconium fiber braiding sleeve outside.The utility model has the following advantages and effects:in the present application, through the synergistic effect of yttrium stabilized zirconium braiding sleeve and aerogel reinforced glass fiber braiding layer, stability can be maintained at higher temperature, and compared with traditional composite insulation structure, it has great improvement.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-temperature resistant cable. Background Technology

[0002] With the rapid development of industrial technology, the demand for power transmission and signal control in high-temperature environments is increasing, especially in fields such as metallurgy, chemical industry, aerospace, new energy and special equipment. Traditional cables are prone to insulation aging, mechanical performance degradation or even failure under high-temperature conditions, which seriously restricts the safety and reliability of equipment.

[0003] Currently, commercially available high-temperature resistant cables mostly use materials such as silicone rubber, polytetrafluoroethylene (PTFE), or mica tape as insulation layers. Although they can work stably in environments below 200°C, they are still not up to the task in extreme temperatures above 300°C or in long-term heat radiation environments. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant cable.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-temperature resistant cable, comprising a copper inner core, an adaptive insulation layer disposed outside the copper inner core, an aerogel-reinforced glass fiber braided layer disposed outside the adaptive insulation layer, a 316L stainless steel strip disposed outside the aerogel-reinforced glass fiber braided layer, and a yttrium-stabilized zirconia fiber braided sleeve disposed outside the 316L stainless steel strip.

[0006] The adaptive insulating layer is further configured as a nanoporous alumina ceramic tape.

[0007] Further configuration: A ceramicized silicone rubber layer is provided on the outside of the nanoporous alumina ceramic strip.

[0008] The 316L stainless steel strip is further configured to have a Cr2O3-Al2O3 composite coating sprayed on its exterior.

[0009] The thickness of the Cr2O3-Al2O3 composite coating is further set to 20 μm.

[0010] Further settings include: the thickness of the 316L stainless steel strip is 0.15mm.

[0011] In summary, the present invention has the following beneficial effects: In this application, through the synergistic effect of the yttrium-stabilized zirconia braided sleeve and the aerogel-reinforced glass fiber braided layer, stability can be maintained at higher temperatures, which is a significant improvement compared to traditional composite insulation structures. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of a high-temperature resistant cable.

[0013] In the figure: 1. Copper inner core; 2. Adaptive insulation layer; 21. Nanoporous alumina ceramic strip; 22. Ceramicized silicone rubber layer; 3. Aerogel-reinforced glass fiber braided layer; 4. 316L stainless steel strip; 5. Cr2O3-Al2O3 composite coating; 6. Yttrium-stabilized zirconia fiber braided sleeve. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] A high-temperature resistant cable comprising a copper inner core 1.

[0016] An adaptive insulation layer 2 is provided outside the copper inner core 1. The adaptive insulation layer 2 includes an inner nanoporous alumina ceramic strip 21 and an outer ceramicized silicone rubber layer 22. The nanoporous alumina ceramic strip 21 is 0.1 mm thick and is fixed by spiral wrapping. To allow space for thermal expansion, its porosity is controlled at 50% ± 5%. The ceramicized silicone rubber layer 22 is extruded using an extruder, and its SiO2 content should be ≥ 60%.

[0017] An aerogel-reinforced glass fiber braided layer 3 is disposed outside the adaptive insulating layer 2 (i.e., outside the ceramicized silicone rubber layer 22). The glass fiber braided layer is formed by wet web formation technology and then composited with aerogel. This composite process can be achieved by vacuum impregnation, electrostatic self-assembly, or adhesive bonding to form the aerogel-reinforced glass fiber braided layer 3.

[0018] An aerogel-reinforced glass fiber braided layer 3 is surrounded by a 316L stainless steel strip 4, which has a thickness of 0.15mm. The 316L stainless steel strip 4 is fixed by a winding process.

[0019] A Cr2O3-Al2O3 composite coating 5 is sprayed onto the outside of the 316L stainless steel strip 4. The thickness of the Cr2O3-Al2O3 composite coating 5 is 20μm.

[0020] The 316L stainless steel strip 4 is surrounded by a yttrium-stabilized zirconia fiber braided sleeve 6. The structure of the yttrium-stabilized zirconia fiber braided sleeve 6 is mainly achieved by adding 8% yttrium oxide (Y2O3) to zirconia (ZrO2).

[0021] The aforementioned structure is mainly fixed through traditional extrusion or coating, which is a traditional process in the cable industry.

[0022] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A high-temperature resistant cable, characterized in that: It includes a copper inner core, an adaptive insulation layer outside the copper inner core, an aerogel-reinforced glass fiber braided layer outside the adaptive insulation layer, a 316L stainless steel strip outside the aerogel-reinforced glass fiber braided layer, and a yttrium-stabilized zirconia fiber braided sleeve outside the 316L stainless steel strip.

2. The high-temperature resistant cable according to claim 1, characterized in that: The adaptive insulating layer is a nanoporous alumina ceramic tape.

3. The high-temperature resistant cable according to claim 2, characterized in that: The nanoporous alumina ceramic belt is covered with a ceramicized silicone rubber layer.

4. The high-temperature resistant cable according to claim 1, characterized in that: The 316L stainless steel strip is coated with a Cr2O3-Al2O3 composite coating.

5. A high-temperature resistant cable according to claim 4, characterized in that: The thickness of the Cr2O3-Al2O3 composite coating is 20 μm.

6. A high-temperature resistant cable according to claim 1, characterized in that: The thickness of the 316L stainless steel strip is 0.15mm.

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