CN220137992U - High-temperature-resistant power cable - Google Patents
High-temperature-resistant power cable Download PDFInfo
- Publication number
- CN220137992U CN220137992U CN202321412947.4U CN202321412947U CN220137992U CN 220137992 U CN220137992 U CN 220137992U CN 202321412947 U CN202321412947 U CN 202321412947U CN 220137992 U CN220137992 U CN 220137992U
- Authority
- CN
- China
- Prior art keywords
- insulating layer
- power cable
- heat
- wire core
- resistant power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004321 preservation Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 9
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 208000002925 dental caries Diseases 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 11
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of power cables, in particular to a high-temperature-resistant power cable, which comprises an inner insulating layer and an outer insulating layer, wherein a shielding layer is arranged between the inner insulating layer and the outer insulating layer, at least two cavities are formed in the inner insulating layer and are mutually communicated, wire core bundles are arranged in the cavities, wherein heat conducting columns are arranged in the wire core bundles, a heat preservation belt is wound between the adjacent wire core bundles, the high-temperature-resistant power cable is wound between the adjacent wire core bundles in a serpentine overlapping mode, the heat preservation belt has good external heat insulation performance, the integrity is good, the wire core bundles can be separated in mutually independent heat preservation spaces, the high-temperature phenomenon caused by centralized heating of the wire cores is avoided, the heat conducting columns are arranged in the center of the wire core bundles, the heat generated by the wire cores can be conducted to the outside, the situation that the heat in the high-temperature-resistant power cable cannot dissipate heat is avoided, and the operation safety of the power cable is fully ensured.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a high-temperature-resistant power cable.
Background
The power cable is used for transmitting and distributing electric energy, is used for transmitting and distributing high-power electric energy in a main circuit, is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under seawater crossing the river, and in the power lines, the proportion of the cable is gradually increasing, and comprises various voltage levels of 1-500KV and above and various power cables applied in different environments;
the utility model discloses a high temperature resistant cable, which is characterized in that two high temperature resistant layers are added on the periphery of a metal cable core, the high temperature resistant cable is respectively composed of a mica-containing organosilicon belt and a graphite-containing carbon fiber belt, the high temperature resistant performance of the cable is greatly improved by utilizing the high temperature resistant performance of mica and graphite, however, the technology can only improve the heat insulation performance of the cable, if the cable works in overload, more internal heat can be generated, the internal heat cannot be dissipated, and a plurality of cable cores are often caused to be in short circuit and spontaneous combustion.
Disclosure of Invention
The utility model aims to provide a high-temperature-resistant power cable, which solves the technical problems that the traditional high-temperature-resistant power cable can only improve the heat insulation performance of the cable, if the cable works in overload, more internal heat can be generated, the internal heat cannot be dissipated, and the multi-strand cable core is often in short circuit spontaneous combustion.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides a high temperature resistant power cable, includes inner insulating layer and outer insulating layer, be provided with the shielding layer between inner insulating layer and the outer insulating layer, be formed with two at least cavitys in the inner insulating layer, the cavity communicates each other, all be provided with the sinle silk in the cavity and cluster, wherein, the sinle silk is clustered and is all built-in to have the heat conduction post, adjacent twine between the sinle silk is clustered is provided with the heat preservation area, so that the sinle silk is clustered and is located mutually independent heat preservation space respectively.
The beneficial effects are that: this high temperature resistant power cable, the thermal-insulation tape is snakelike overlapping around wrapping between adjacent sinle silk bundling, and outside thermal-insulated performance is good, and the wholeness is good, can separate sinle silk bundling in mutually independent heat preservation space, has avoided the sinle silk to concentrate the high temperature phenomenon that generates heat and cause, and the heat conduction post embeds in sinle silk center of bundling, can be with the heat conduction of sinle silk production to external, has avoided the unable radiating condition of the inside heat of high temperature resistant power cable, has fully ensured power cable's operation safety.
Further, the heat conduction column is made of one of a heat conduction silica gel material or a glass fiber composite material.
Further, the thermal insulation belt is in a serpentine shape and overlapped and wrapped between the adjacent wire core bundles.
Further, the heat preservation belt is made of any one of a fire-resistant mica tape, a carbon fiber tape or a ceramic fiber tape.
Further, the wire core bundle is composed of a plurality of wire cores, and the plurality of wire cores are equidistantly arranged around the heat conducting column.
Further, the inner insulating layer and the outer insulating layer are made of polyvinyl chloride materials.
Drawings
FIG. 1 is a schematic side view of a high temperature resistant power cable according to the present utility model;
fig. 2 is a front structural sectional view of a high temperature resistant power cable according to the present utility model.
Reference numeral 1, an inner insulating layer; 11. a cavity; 2. an outer insulating layer; 3. a shielding layer; 4. bundling wire cores; 5. a heat conducting column; 6. and a heat preservation belt.
Detailed Description
The following description is only of the preferred embodiments of the present utility model, and the scope of the present utility model should not be limited to the examples, but should be construed as falling within the scope of the present utility model. It should also be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present utility model are intended to be comprehended within the scope of the present utility model.
As shown in fig. 1 to 2, a high temperature resistant power cable comprises an inner insulating layer 1 and an outer insulating layer 2, wherein the inner insulating layer 1 and the outer insulating layer 2 are made of polyvinyl chloride materials;
specifically, the inner insulating layer 1 and the outer insulating layer 2 play roles in sealing and insulating, and the operation safety of the wire core is fully ensured.
Further, a shielding layer 3 is arranged between the inner insulating layer 1 and the outer insulating layer 2;
specifically, the shielding layer 3 is made of a metal mesh material, so that external electromagnetic interference can be shielded, when the power cable is prepared, the shielding layer 3 is woven on the outer side of the inner insulating layer 1, and after the weaving of the shielding layer 3 is completed, the shielding layer 3 is coated to form the outer insulating layer 2, so that the outer insulating layer 2 prevents the shielding layer 3 from being corroded.
Further, at least two cavities 11 are formed in the inner insulating layer 1, the cavities 11 are mutually communicated, and wire core bundles 4 are arranged in the cavities 11;
specifically, as shown in fig. 2, two wire core bundles 4 are provided, and a heat preservation belt 6 is in a serpentine shape and overlapped and wrapped between the adjacent wire core bundles 4;
alternatively, the core bundles 4 may be three or more, and the thermal insulation tape 6 is in a wave shape and overlapped and wrapped between the adjacent core bundles 4, which is suitable for a multi-harness power cable.
Further, the wire core bundle 4 is composed of a plurality of wire cores, and the plurality of wire cores are equidistantly arranged around the heat conducting column 5;
specifically, each wire core can be in contact with the heat conducting column 5, so that heat of the wire core is conducted to the heat conducting column 5, and is conducted to the wiring structure by the heat conducting column 5 for heat dissipation.
Further, the wire core bundles 4 are internally provided with heat conducting columns 5, and the heat conducting columns 5 are made of one of heat conducting silica gel materials or glass fiber composite materials;
specifically, the heat-conducting silica gel material and the glass fiber composite material both have excellent heat conduction performance, and can conduct heat generated by the wire core to the outside, so that the situation that the heat in the high-temperature-resistant power cable cannot dissipate heat is avoided, and the operation safety of the power cable is fully ensured.
Further, a heat preservation belt 6 is wound between the adjacent wire core bundles 4, so that the wire core bundles 4 are respectively located in mutually independent heat preservation spaces, and the heat preservation belt 6 is in a serpentine overlapping wrapping mode between the adjacent wire core bundles 4;
specifically, the wire core bundle 4 can be separated in mutually independent heat preservation spaces, so that the height Wen Xianxiang caused by concentrated heating of the wire cores is avoided;
specifically, the heat preservation belt 6 passes through the two wire core bundles 4 in an S-shaped manner and continuously moves forwards, the whole wire core bundles 4 can be completely wrapped, and the heat preservation belt has a good binding effect and strong integrity.
Further, the thermal insulation belt 6 is made of any one of a fire-resistant mica tape, a carbon fiber tape or a ceramic fiber tape;
specifically, the fire-resistant mica tape, the carbon fiber tape and the ceramic fiber have good heat insulation performance, so that the normal use of the wire core is not influenced by the external temperature;
preferably, the multi-layer thermal insulation tape 6 is wrapped, and each layer of thermal insulation tape 6 can be made of different materials to improve the heat insulation capability.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The utility model provides a high temperature resistant power cable, includes inner insulating layer (1) and outer insulating layer (2), its characterized in that, be provided with shielding layer (3) between inner insulating layer (1) and outer insulating layer (2), be formed with two at least cavitys (11) in inner insulating layer (1), cavity (11) intercommunication each other, all be provided with sinle silk in cavity (11) and cluster (4), wherein, sinle silk is clustered (4) and is all built-in heat conduction post (5), adjacent twine between sinle silk is clustered (4) and is provided with heat preservation area (6), so that sinle silk is clustered (4) and is located mutually independent heat preservation space respectively.
2. A high temperature resistant power cable according to claim 1, wherein: the heat conduction column (5) is made of one of a heat conduction silica gel material or a glass fiber composite material.
3. A high temperature resistant power cable according to claim 1, wherein: the heat preservation belt (6) is in a serpentine shape and overlapped and wrapped between the adjacent wire core bundles (4).
4. A high temperature resistant power cable according to claim 1, wherein: the heat preservation belt (6) is made of any one of a fire-resistant mica tape, a carbon fiber tape or a ceramic fiber tape.
5. A high temperature resistant power cable according to claim 1, wherein: the wire core bundle (4) is composed of a plurality of wire cores, and the plurality of wire cores are equidistantly arranged around the heat conducting column (5).
6. A high temperature resistant power cable according to claim 1, wherein: the inner insulating layer (1) and the outer insulating layer (2) are made of polyvinyl chloride materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321412947.4U CN220137992U (en) | 2023-06-05 | 2023-06-05 | High-temperature-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321412947.4U CN220137992U (en) | 2023-06-05 | 2023-06-05 | High-temperature-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220137992U true CN220137992U (en) | 2023-12-05 |
Family
ID=88953784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321412947.4U Active CN220137992U (en) | 2023-06-05 | 2023-06-05 | High-temperature-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220137992U (en) |
-
2023
- 2023-06-05 CN CN202321412947.4U patent/CN220137992U/en active Active
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