High-temperature-resistant electric wire cable and production process thereof

Abstract

The application relates to the field of high-temperature-resistant electric wires, and particularly discloses a high-temperature-resistant electric wire cable and a production process, which solves the problem that the existing high-temperature-resistant cable is prone to mutual extrusion and abrasion of the strands, and the high-temperature resistance is general, and the following scheme is proposed, which comprises a plurality of inner-layer cables, a flexible support framework, a flexible support pipe, a flexible side strip, a flexible arc-shaped strip, a support, an inner ceramic fiber heat insulation layer, an inner-layer inert air bag layer, a heat insulation strip, an outer-layer inert air bag layer and an air bag, the outer-layer inert air bag layer is sleeved with a magnesium oxide mineral insulation layer on the outside, the outer magnesium oxide mineral insulation layer is woven with an outer ceramic fiber heat insulation layer on the outside, and the outer ceramic fiber heat insulation layer is sleeved with a metal armor layer on the outside. The cable can improve the high-temperature resistance of the strands, effectively isolate external high temperature, and improve the high-temperature resistance of the cable from the inner and outer layers.

Description

TECHNICAL FIELD

[0001] The application relates to the field of high-temperature-resistant electric wires, and in particular to a high-temperature-resistant electric wire cable and a production process. BACKGROUND

[0002] The high-temperature-resistant electric wire cable refers to a special cable capable of stably transmitting electric energy or signals in a harsh environment with a temperature higher than the working temperature (usually > 105 DEG C) of a conventional electric wire cable, and is widely used in the fields of industrial high temperature, energy, aerospace, rail transit and the like. The core advantages of the high-temperature-resistant electric wire cable lie in the high-temperature resistance, structural stability and environmental adaptability of the insulating material.

[0003] However, the cores in the existing high-temperature-resistant electric wire cable are all arranged in multiple strands, and the multiple strands are generally isolated and fixed by fillers. However, the fillers are prone to deformation and displacement when being extruded, so that the multiple strands are still prone to extrusion with each other. The extrusion leads to friction between the multiple strands and causes abrasion of the multiple strands. Meanwhile, the abraded multiple strands also affect the outer insulating layer and the heat insulation layer, and cause damage of the cable. Meanwhile, the cores in the existing cable are indirectly contacted with the outer cable sheath through physical contact. Therefore, the cores are still prone to being quickly heated through heat conduction, which reduces the heat insulation effect and the high-temperature resistance.

[0004] The high-temperature-resistant electric wire cable disclosed in the publication No. CN116072341A relates to the technical field of cables and comprises a cable main body, the cable main body comprises a cable inner core and an outer protective layer, a heat dissipation cavity is arranged between the outer protective layer and the cable inner core, a plurality of equidistantly distributed partition spacers are fixedly connected to the inner wall of the heat dissipation cavity, and the heat dissipation cavity is divided into a plurality of cooling cavities by the partition spacers. A cooling member for feeding cooling medium is fixedly connected to the top of the outer protective layer. The heat dissipation cavity is divided into a plurality of cooling cavities by the partition spacers, the circulation of the cooling medium is utilized to cool the cable, and the high-temperature resistance of the cable is improved. The communication cavities are arranged to communicate the cooling cavities, so that the cooling medium can circulate in the cooling cavities and then be discharged through the water outlet pipe, and the cooling effect of the cooling medium is ensured.

[0005] The above technical solution fills the cable with flowable cooling medium. However, the cable is undoubtedly increased in size and cost by arranging the flowable cooling medium, and is not suitable for large-scale application. Therefore, the application provides a high-temperature-resistant electric wire cable and a production process. SUMMARY

[0006] In order to overcome the prior art, the present application provides a kind of high temperature resistant wire cable and production process, can be stable to the core of cable, effectively protect the core, can also effectively isolate external heat, improve the high temperature resistance of cable.

[0007] In order to solve the above technical problems, the basic technical scheme of the present application is:

[0008] A kind of high temperature resistant wire cable, including multiple inner layer cables, the center of multiple inner layer cables is provided with flexible support framework, the center of the flexible support framework is provided with flexible support tube, and the outer side of flexible support tube is annularly arranged with multiple flexible side strips, the end of the flexible side strip away from flexible support tube is connected with flexible arc-shaped strip, multiple supports for supporting inner layer cable are annularly arranged between adjacent flexible side strips along the axial direction of each inner layer cable, and the outer side of multiple inner layer cables is wound with inner ceramic fiber heat insulation layer.

[0009] The outer side of the inner ceramic fiber heat insulation layer is sleeved with inner inert gas bag layer, and the outer side of the inner inert gas bag layer is annularly arranged with multiple heat insulation strips, and the outer side of the inner inert gas bag layer is connected with outer inert gas bag layer through the outer side of the heat insulation strip, each heat insulation strip separates the inner inert gas bag layer and the outer inert gas bag layer into multiple gas bags, the outer side of the outer inert gas bag layer is sleeved with magnesium oxide mineral insulation layer, the outer side of the magnesium oxide mineral insulation layer is wound with outer ceramic fiber heat insulation layer, and the outer side of the outer ceramic fiber heat insulation layer is sleeved with metal armor layer.

[0010] Preferably, the inner cable is composed of core, insulation layer and high-temperature-resistant silicone layer from inside to outside.

[0011] Preferably, the support is located on the outer side of the flexible support tube and the inner side of the flexible arc-shaped strip, the flexible support tube, the flexible side strip and the flexible arc-shaped strip are made of silicone rubber-based ceramic filler composite material, and the support is made of high-temperature-resistant plastic material.

[0012] Preferably, the flexible support tube is provided with filling holes on the surface between adjacent flexible side strips, the support is provided with perforations, and the flexible support tube is filled with ceramic micro-powder filler.

[0013] Preferably, the outer side of each flexible arc-shaped strip is connected with flexible convex strip, and each flexible convex strip is provided with multiple clamping grooves at equal intervals along the axial direction of the inner cable, and the clamping grooves are bundled with straps.

[0014] Preferably, the outer side of each strap is also annularly arranged with multiple support bars parallel to the axial direction of the inner cable, the inner ceramic fiber heat insulation layer is wound and knitted on the outer side of each strap and support bar, and the strap and support bar are made of flexible graphite strip material.

[0015] Preferably, the flexible convex strip is connected with the convex spur at equal intervals on both sides, the inner ceramic fiber thermal insulation layer is partially embedded in the convex spur, and the convex spur is made of ceramic material.

[0016] Preferably, one end of the flexible support framework is further provided with a flexible framework section, the length of the flexible framework section is between -CM, rivet holes are arranged on the flexible support framework and the flexible side strips on the flexible framework section, a connecting piece is arranged between the flexible support framework and the flexible side strips on the flexible framework section, a rivet is embedded in the connecting piece, and the connecting piece is connected with the flexible side strips on both sides of the flexible support framework and the flexible framework section through the rivet, the connecting piece is made of graphite material, and the rivet is made of ceramic material.

[0017] A high-temperature-resistant wire and cable production process, comprising the following steps:

[0018] Step one: making a flexible support framework with continuous length:

[0019] The rubber raw material is mixed with the ceramic filler, and then is put into an extruder, the mixed material is heated and extruded through the extruder, the extruded material is shaped into the shape of the flexible support framework through the corresponding forming die, and is continuously extruded to form the flexible support framework with continuous length;

[0020] Step two: connecting the support and opening the filling hole on the flexible support framework:

[0021] The drilling equipment is used to drill holes on the surface of the flexible support pipe between the adjacent flexible side strips of the finished flexible support framework at equal intervals, and then the support is hot connected to the outside of the flexible support pipe between the adjacent flexible side strips;

[0022] Step three: bundling of the inner layer cable and the flexible support framework:

[0023] The flexible support framework is centered, and a plurality of inner layer cables are arranged on the outside of the flexible support framework, and are continuously transmitted through the transmission machine, and are stranded through the stranding machine;

[0024] Step four: sleeving of the inner ceramic fiber thermal insulation layer:

[0025] The stranded inner layer cable and the flexible support framework are sent to the braiding machine, and the ceramic fiber is braided on the surface to form the inner ceramic fiber thermal insulation layer;

[0026] Step five: forming of the inert air bag layer:

[0027] The inner ceramic fiber insulation layer is sent into the mold, the inner layer inert air bag layer is formed on the outer side of the inner ceramic fiber insulation layer by the extruder, then the insulation strips are arrayed on the outer side of the inner layer inert air bag layer in time, then cooling is carried out so that the insulation strips can be embedded in the inner layer inert air bag layer, then the outer layer inert air bag layer embedded and covering the outer side of the insulation strips is formed by the mold after the extruder again, and then the air bags formed between the insulation strips are filled with inert gas;

[0028] Step six: forming of the outer protective layer:

[0029] The outer layer inert air bag layer passes through the extruder, the magnesium oxide mineral insulation material is extruded by the extruder to form the magnesium oxide mineral insulation layer on the outer side, then the magnesium oxide mineral insulation layer is sent into the braiding machine, the ceramic fiber is continuously braided to form the outer ceramic fiber insulation layer on the outer side, and finally the metal braided mesh is armored on the outer side of the outer ceramic fiber insulation layer to form the metal armored layer.

[0030] Preferably, the inert gas filled in the step five is one of nitrogen, argon, krypton and xenon.

[0031] The application has the following beneficial effects:

[0032] The technical scheme of the application can make the inner layer cables more stable in the cable and avoid mutual extrusion and friction, and also avoid direct contact between the cables, so as to further avoid heat conduction between the cables, and provide double-layer insulation effect by the inner ceramic fiber insulation layer and the outer ceramic fiber insulation layer, so as to effectively improve the high-temperature resistance of the cable, and the air bags filled with inert gas are arranged in the inner ceramic fiber insulation layer and the outer ceramic fiber insulation layer, so that the high temperature on the outer side of the outer ceramic fiber insulation layer can be effectively blocked by the outer ceramic fiber insulation layer and the inert gas, and the heating of the inner layer cables is further weakened, so as to effectively improve the high-temperature resistance of the cable.

[0033] 2. The technical scheme of the application can set the flexible support skeleton in the center of the flexible support skeleton, and the flexible support skeleton is arranged in the form of a ring on the outer side of the flexible support skeleton, and a plurality of flexible side strips are arranged in the form of an array, so as to facilitate the installation of the support for clamping the inner layer cables between the adjacent flexible side strips, and improve the stability of the cable, and the through holes are arranged on the support, and the filling holes are arranged on the surface of the flexible support skeleton between the adjacent flexible side strips, so that the ceramic micro-powder filler can be filled into the flexible support skeleton after the cable is processed, and the ceramic micro-powder filler can pass through the filling holes and the through holes to fill the space of the inner ceramic fiber insulation layer, so as to further improve the insulation effect of the outer side of the inner layer cables and improve the high-temperature resistance of the cable.

[0034] 3. The technical scheme of the present application provides a flexible skeleton segment which is the same as the flexible support skeleton structure but shorter than the flexible support skeleton structure, so that when the cable is damaged locally, the segment can be cut off in time and replaced with a flexible skeleton segment, the flexible skeleton segment can be stably connected with the flexible support skeleton through the connecting piece and the rivet, and the connection of the inner cable and the structure of each layer on the outside is realized through the existing method, so that the damaged cable can be repaired in time and effectively. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the present application;

[0036] Figure 2 It is a sectional view of the structure of the present application;

[0037] Figure 3 It is a structural schematic diagram in the inner ceramic fiber heat insulation layer of the present application;

[0038] Figure 4 It is a structural schematic diagram of the flexible support skeleton and the inner layer cable of the present application;

[0039] Figure 5 It is Figure 4 the enlarged view of A in FIG. 4;

[0040] Figure 6 It is a schematic diagram of the related structure of the flexible support skeleton of the present application;

[0041] Figure 7 It is a structural schematic diagram of the connection of the flexible support skeleton and the flexible skeleton segment of the present application;

[0042] Figure 8 It is Figure 7 the enlarged view of B in FIG. 5;

[0043] BRIEF DESCRIPTION OF DRAWINGS

[0044] 1. Flexible support skeleton; 2. Inner layer cable; 3. Inner ceramic fiber heat insulation layer; 4. Inner layer inert air bag layer; 5. Heat insulation strip; 6. Outer layer inert air bag layer; 7. Air bag; 8. Magnesium oxide mineral insulation layer; 9. Outer ceramic fiber heat insulation layer; 10. Metal armor layer; 11. Support; 12. Perforation; 13. Flexible support pipe; 14. Flexible side strip; 15. Flexible arc-shaped strip; 16. Filling hole; 17. Flexible convex strip; 18. Clamping groove; 19. Ribbon; 20. Support strip; 21. Convex spine; 22. Flexible skeleton segment; 23. Connecting piece; 24. Rivet; 25. Wire core; 26. Insulation layer; 27. High-temperature-resistant silica gel layer. DETAILED DESCRIPTION

[0045] The specific embodiments of the present application will be described below with reference to the accompanying drawings. Figure 1 to FIG. 4; Figure 8The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0046] like Figures 1-8 As shown, the present invention discloses a high-temperature resistant wire and cable, including a multi-strand inner layer cable 2, a flexible support frame 1 is provided at the center of the multi-strand inner layer cable 2, a flexible support tube 13 is provided at the center of the flexible support frame 1, and a plurality of flexible side strips 14 are arranged in a ring array on the outer side of the flexible support tube 13. A flexible arc strip 15 is connected to one end of the flexible side strip 14 away from the flexible support tube 13. A plurality of supports 11 for supporting the inner layer cable 2 are arranged in a ring array between adjacent flexible side strips 14 along the axial direction of each strand of the inner layer cable 2. An inner ceramic fiber heat insulation layer 3 is wound and braided on the outer side of the multi-strand inner layer cable 2.

[0047] Regarding the spacing of the supports 11, depending on the bending requirements of the cable during specific use, when the bending angle requirement is large, the spacing of the supports 11 can be set larger, while when the bending angle requirement is small, the spacing of the supports 11 can be set relatively smaller.

[0048] An inner inert airbag layer 4 is fitted on the outside of the inner ceramic fiber insulation layer 3. Multiple heat insulation strips 5 are arranged in a ring array on the outer side of the inner inert airbag layer 4. An outer inert airbag layer 6 is connected to the outer side of the inner inert airbag layer 4 through the heat insulation strips 5. Each heat insulation strip 5 separates the inner inert airbag layer 4 and the outer inert airbag layer 6 into multiple airbags 7. A magnesium oxide mineral insulation layer 8 is fitted on the outside of the outer inert airbag layer 6. An outer ceramic fiber insulation layer 9 is wrapped around the outside of the magnesium oxide mineral insulation layer 8. A metal armor layer 10 is fitted on the outside of the outer ceramic fiber insulation layer 9.

[0049] Among them, multiple heat insulation strips 5 are arranged in a ring array between the inner inert airbag layer 4 and the outer inert airbag layer 6, which can effectively support the outer inert airbag layer 6 on the outside of the inner inert airbag layer 4. Multiple airbags 7 are formed by the separation of each heat insulation strip 5. After the cable production and processing is completed, inert gas can be filled into each airbag 7. During the filling process, the air inside the airbag 7 is driven out until the inert gas content inside the airbag 7 is not less than 95%.

[0050] The inner cable 2 consists of a conductor 25, an insulation layer 26, and a high-temperature resistant silicone layer 27, from the inside out, giving the inner cable 2 preliminary heat insulation and protective capabilities.

[0051] The support 11 is outside the flexible support pipe 13 and inside the flexible arc-shaped strip 15, the flexible support pipe 13, the flexible side strip 14 and the flexible arc-shaped strip 15 are made of a silica rubber-based ceramic filler composite material, and the support 11 is made of a high-temperature-resistant plastic material. Through the use of the above materials, the flexible support framework 1 has high heat resistance, and can deform and rebound after deformation. Embodiment

[0052] As shown in Figures 1-8 , the application discloses a high-temperature-resistant wire and cable and a production process. Compared with embodiment one, the embodiment discloses the structure inside the flexible support framework 1.

[0053] The flexible support pipe 13 is provided with a filling hole 16 on the surface between adjacent flexible side strips 14, the support 11 is provided with a perforation 12, and the flexible support pipe 13 is filled with ceramic micro-powder filler.

[0054] In this way, when the cable is completed, the ceramic micro-powder filler can gradually penetrate and fill the space inside the inner ceramic fiber heat insulation layer 3 through the filling hole 16 and the perforation 12, thereby improving the heat insulation effect between the inner layer cables 2, and the ceramic micro-powder filler can also effectively isolate the heat outside the inner ceramic fiber heat insulation layer 3, thereby further improving the overall high-temperature resistance effect. Embodiment

[0055] As shown in Figures 1-8 , the application discloses a high-temperature-resistant wire and cable and a production process. Compared with embodiment two, the embodiment discloses the connection structure of the inner layer cable 2, the flexible support framework 1 and the inner ceramic fiber heat insulation layer 3.

[0056] The outer side of each flexible arc-shaped strip 15 is connected with a flexible convex strip 17, and a plurality of clamping grooves 18 are equally and spacedly arranged on the flexible convex strip 17 along the axial direction of the inner layer cable 2, and a cable tie 19 is bundled in the clamping groove 18.

[0057] The clamping groove 18 can limit the cable tie 19 to avoid movement along the axial direction of the cable, and the cable tie 19 can fix the inner layer cable 2 in each support 11 of the flexible support framework 1, thereby improving the stability of the inner layer cable 2 on the flexible support framework 1, ensuring that the inner layer cable 2 cannot be squeezed and adhered, improving the stability of the inner layer cable 2, and isolating the inner layer cables 2 to avoid heat conduction and improve the heat resistance and heat insulation effect.

[0058] A plurality of parallel support bars 20 are arranged on the outer side of each cable tie 19 in an annular array and axially parallel to the inner cable 2, and the inner ceramic fiber thermal insulation layer 3 is wrapped around the outer side of each cable tie 19 and support bar 20, the cable tie 19 and the support bar 20 are made of flexible graphite strip material, the support bar 20 is arranged to cooperate with the cable tie 19 to form a layer network structure on the outer side of the flexible support framework 1, which can support and protect the inner cable 2, avoid excessive extrusion of the inner cable 2 during use, and facilitate the wrapping of the inner ceramic fiber thermal insulation layer 3 on the outer side thereof.

[0059] Each flexible protrusion 17 is connected to a protrusion 21 on the outer side at equal intervals, and the inner ceramic fiber thermal insulation layer 3 is partially embedded in the protrusion 21, the protrusion 21 is made of ceramic material, and the embedding of the inner ceramic fiber thermal insulation layer 3 and the protrusion 21 can improve the stability of the wrapping of the inner ceramic fiber thermal insulation layer 3 on the outer side of the flexible support framework 1, and avoid problems such as movement of the inner ceramic fiber thermal insulation layer 3 along the cable axis. Embodiment

[0060] As shown in Figures 1-8 , the application discloses a kind of high temperature resistant wire and cable and production process, compared with example three, this embodiment discloses the repair structure after the cable breakage of this embodiment.

[0061] One end of the flexible support framework 1 is also provided with a flexible framework section 22, and the length of the flexible framework section 22 is between 10-30CM, rivet holes are formed on the flexible support framework 1 and the flexible side strip 14 on the flexible framework section 22, and a connecting piece 23 is arranged between the flexible support framework 1 and the flexible side strip 14 on the flexible framework section 22, the connecting piece 23 is embedded with a rivet 24, and the rivet 24 is connected with the flexible side strip 14 on both sides of the flexible support framework 1 and the flexible framework section 22 respectively, the connecting piece 23 is made of graphite material, the rivet 24 is made of ceramic material, and the flexible framework section 22 is the same as the flexible support framework 1 in terms of its body structure and the structure that can be added on the outer side.

[0062] The arrangement of the flexible framework section 22 enables the cable to be cut off in time when local damage or other damage occurs, and replaced with a flexible framework section 22, which can be stably connected with the flexible support framework 1 through the connecting piece 23 and the rivet 24, and the connection of the inner cable 2 and the structure of each layer on the outer side is connected through the existing method, realizing timely and effective repair of the damaged cable. Embodiment

[0063] As shown in Figures 1-8 , the application discloses a kind of high temperature resistant wire and cable production process, comprising the following steps:

[0064] Step one: making the flexible support skeleton 1 of continuous length

[0065] The rubber raw material is mixed with the ceramic filler, and then put into the extruder. The mixture is heated and extruded by the extruder. The extruded material is shaped into the shape of the flexible support skeleton 1 by the corresponding forming die, and continuously extruded to form the flexible support skeleton 1 of continuous length.

[0066] Step two: connecting the support 11 to the flexible support skeleton 1 and opening the filling hole 16:

[0067] Using a drilling device, drill holes at equal intervals on the surface of the flexible support skeleton 1 between the adjacent flexible side strips 14, and then heat-connect the support 11 to the outside of the flexible support skeleton 1 between the adjacent flexible side strips 14 and the flexible support skeleton 13.

[0068] Step three: bundling of the inner layer cable 2 and the flexible support skeleton 1:

[0069] The flexible support skeleton 1 is centered, and a plurality of inner layer cables 2 are arranged outside the flexible support skeleton 1, and are continuously transmitted by the transmission machine, and are stranded by the stranding machine.

[0070] Step four: sleeving of the inner ceramic fiber thermal insulation layer 3:

[0071] The stranded inner layer cable 2 and the flexible support skeleton 1 are sent to the braiding machine, and the ceramic fiber is braided on the surface to form the inner ceramic fiber thermal insulation layer 3.

[0072] Step five: forming of the inert gas pocket layer:

[0073] The inner ceramic fiber thermal insulation layer 3 is sent into the mold, and the inner layer inert gas pocket layer 4 is formed on the outside of the inner ceramic fiber thermal insulation layer 3 by the extruder. Then, the thermal insulation strips 5 are arrayed and laid outside the inner layer inert gas pocket layer 4 in time, and then cooled so that the thermal insulation strips 5 can be embedded in the inner layer inert gas pocket layer 4. Then, after cooling, the outer layer inert gas pocket layer 6 is formed by the extruder through the mold, which is embedded and covers the outside of the thermal insulation strip 5. Then, the gas pocket 7 formed between the thermal insulation strips 5 is filled with inert gas.

[0074] Step six: forming of the outer protective layer:

[0075] The outer layer inert gas pocket layer 6 is extruded by the extruder, and the magnesium oxide mineral insulation layer 8 is formed on the outside of the outer layer inert gas pocket layer 6 by the extruder. Then, the magnesium oxide mineral insulation layer 8 is sent to the braiding machine, and the ceramic fiber is continuously braided on the outside to form the outer ceramic fiber thermal insulation layer 9. Finally, the metal braided net is armored on the outside of the outer ceramic fiber thermal insulation layer 9 to form the metal armored layer 10.

[0076] The inert gas filled in the fifth step is one of nitrogen, argon, krypton or xenon.

[0077] The inner layer cables 2 are more stable in the cable and do not extrude and rub each other, and direct contact between the inner layer cables 2 is avoided, heat conduction between the inner layer cables 2 is further avoided, the inner ceramic fiber heat insulation layer 3 and the outer ceramic fiber heat insulation layer 9 are sleeved outside the inner layer cables 2, double heat insulation effects are provided, the high temperature resistance of the whole cable is effectively improved, the air bag 7 filled with inert gas is arranged between the inner ceramic fiber heat insulation layer 3 and the outer ceramic fiber heat insulation layer 9, high temperature outside the outer ceramic fiber heat insulation layer 9 is effectively blocked by the outer ceramic fiber heat insulation layer 9 and the inert gas, the heating of the inner layer cables 2 is further weakened, and the high temperature resistance of the whole cable is effectively improved.

[0078] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A high-temperature resistant wire and cable, comprising a multi-strand inner cable (2), characterized in that, A flexible support frame (1) is provided at the center of the multi-strand inner layer cable (2), a flexible support tube (13) is provided at the center of the flexible support frame (1), and a plurality of flexible side strips (14) are arranged in a ring array on the outer side of the flexible support tube (13). A flexible arc strip (15) is connected to one end of the flexible side strip (14) away from the flexible support tube (13). A plurality of supports (11) for supporting the inner layer cable (2) are arranged in a ring array between adjacent flexible side strips (14) along the axial direction of each strand of inner layer cable (2). An inner ceramic fiber heat insulation layer (3) is wound and woven on the outer side of the multi-strand inner layer cable (2). The outer side of the inner ceramic fiber insulation layer (3) is fitted with an inner inert airbag layer (4), and multiple heat insulation strips (5) are arranged in a ring array on the outer side of the inner inert airbag layer (4). An outer inert airbag layer (6) is connected to the outer side of the inner inert airbag layer (4) through the heat insulation strips (5). Each heat insulation strip (5) separates the inner inert airbag layer (4) and the outer inert airbag layer (6) into multiple airbags (7). The outer side of the outer inert airbag layer (6) is fitted with a magnesium oxide mineral insulation layer (8). The outer side of the magnesium oxide mineral insulation layer (8) is wrapped with an outer ceramic fiber insulation layer (9), and the outer side of the outer ceramic fiber insulation layer (9) is fitted with a metal armor layer (10).

2. The high-temperature resistant wire and cable according to claim 1, characterized in that, The inner cable (2) consists of, from the inside out, a wire core (25), an insulation layer (26), and a high-temperature resistant silicone layer (27).

3. The high-temperature resistant wire and cable according to claim 1, characterized in that, The support (11) is located on the outside of the flexible support tube (13) and the inside of the flexible arc strip (15). The flexible support tube (13), the flexible side strip (14), and the flexible arc strip (15) are all made of silicone rubber-based ceramic filler composite material. The support (11) is made of high temperature resistant plastic material.

4. The high-temperature resistant wire and cable according to claim 1, characterized in that, The flexible support tube (13) has a filling hole (16) through the surface between adjacent flexible side strips (14), and the support (11) has a through hole (12). The flexible support tube (13) is filled with ceramic micro powder filler.

5. A high-temperature resistant wire and cable according to claim 1, characterized in that, Each of the flexible arc-shaped strips (15) is connected to a flexible protrusion (17) on its outer side. Each of the flexible protrusions (17) has multiple slots (18) at equal intervals along the axial direction of the inner cable (2). Cable ties (19) are tied in the slots (18).

6. A high-temperature resistant wire and cable according to claim 5, characterized in that, Each of the cable ties (19) is also provided with a ring array of multiple support bars (20) parallel to the axis of the inner cable (2). The inner ceramic fiber insulation layer (3) is wrapped and woven around the outside of each cable tie (19) and support bar (20). The cable ties (19) and support bars (20) are made of flexible graphite tape material.

7. A high-temperature resistant wire and cable according to claim 6, characterized in that, Each of the flexible protrusions (17) is connected with protrusions (21) at equal intervals on the outside. The inner ceramic fiber heat insulation layer (3) is partially embedded with the protrusions (21). The protrusions (21) are made of ceramic material.

8. A high-temperature resistant wire and cable according to claim 1, characterized in that, One end of the flexible support frame (1) is also provided with a flexible frame segment (22), and the length of the flexible frame segment (22) is between 10-30CM. Rivet holes are provided on the flexible side strips (14) on both the flexible support frame (1) and the flexible frame segment (22). A connecting piece (23) is provided between the flexible support frame (1) and the flexible side strips (14) on the flexible frame segment (22). The connecting piece (23) is embedded with rivets (24) and is connected to the flexible support frame (1) and the flexible side strips (14) on both sides of the flexible frame segment (22) through the rivets (24). The connecting piece (23) is made of graphite material, and the rivets (24) are made of ceramic material.

9. A manufacturing process for high-temperature resistant wires and cables, based on the high-temperature resistant wires and cables described in any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Fabricate a continuous flexible support frame (1): Rubber raw materials are mixed with ceramic fillers and then fed into an extruder. The mixture is heated and extruded through the extruder. The extruded material is shaped into a flexible support skeleton (1) through the corresponding molding die and continuously extruded to form a continuous length of flexible support skeleton (1). Step 2: Connect the support (11) and open the filling hole (16) on the flexible support frame (1): Using a drilling device, holes are drilled at equal intervals on the surface of the flexible support tube (13) between adjacent flexible side strips (14) of the finished flexible support frame (1), and then the support (11) is thermally connected between adjacent flexible side strips (14) and the outside of the flexible support tube (13). Step 3: Bundling the inner cable (2) with the flexible support frame (1): The flexible support frame (1) is centered, and multiple inner layer cables (2) are set on the outside of the flexible support frame (1). All of them are continuously transmitted through the transmission machine and twisted together by the stranding machine. Step 4: Assembly of the inner ceramic fiber insulation layer (3): The multi-strand inner layer cable (2) and the flexible support skeleton (1) are fed into the braiding machine, and ceramic fibers are braided on its surface to form an inner ceramic fiber heat insulation layer (3). Step 5: Forming the inert airbag layer: The inner ceramic fiber insulation layer (3) is fed into the mold, and an inner inert air bladder layer (4) is formed on the outside of the inner ceramic fiber insulation layer (3) by the extruder. Then, insulation strips (5) are laid in an array on the outside of the inner inert air bladder layer (4) in time. Then, it is cooled so that the insulation strips (5) can be embedded in the inner inert air bladder layer (4). After cooling, it is passed through the extruder again and an outer inert air bladder layer (6) is formed by the mold to cover the outside of the insulation strips (5). Then, inert gas is filled into the air bladders (7) formed between each insulation strip (5). Step Six: Forming the outer protective layer: The outer inert airbag layer (6) is passed through an extruder to extrude magnesium oxide mineral insulation material to form a magnesium oxide mineral insulation layer (8) on its outer side. Then, the magnesium oxide mineral insulation layer (8) is fed into a braiding machine to continue to braid ceramic fibers on its outer side to form an outer ceramic fiber insulation layer (9). Finally, a metal braided mesh is armored on the outer side of the outer ceramic fiber insulation layer (9) to form a metal armor layer (10).

10. The high-temperature resistant wire and cable manufacturing process according to claim 9, characterized in that, The inert gas introduced in step five is one of nitrogen, argon, krypton, or xenon.

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