CN222281663U - High-temperature-resistant anti-corrosion power cable - Google Patents
High-temperature-resistant anti-corrosion power cable Download PDFInfo
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- CN222281663U CN222281663U CN202421091705.4U CN202421091705U CN222281663U CN 222281663 U CN222281663 U CN 222281663U CN 202421091705 U CN202421091705 U CN 202421091705U CN 222281663 U CN222281663 U CN 222281663U
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- 238000005260 corrosion Methods 0.000 title claims abstract description 24
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 34
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 239000010445 mica Substances 0.000 claims abstract description 26
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 26
- 230000007797 corrosion Effects 0.000 claims abstract description 18
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 11
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 84
- 239000004020 conductor Substances 0.000 claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 238000009954 braiding Methods 0.000 abstract description 3
- 238000005253 cladding Methods 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 206010063493 Premature ageing Diseases 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model belongs to the field of power cables, and provides a high-temperature-resistant and corrosion-resistant power cable which comprises a cable core, a filling layer, a wrapping layer, an inner sheath, a steel wire braiding shielding layer, a steel wire armor layer and an outer sheath, wherein the cable core comprises 1 central cable core and 6 side cable cores distributed around the central cable core, the star-shaped central sheath is arranged outside the central cable core, a single-sided calcined mica tape layer is arranged outside the side cable core, a first polytetrafluoroethylene film is arranged outside the single-sided calcined mica tape layer, two tensile ropes which are symmetrically distributed are arranged inside the filling layer, a second polytetrafluoroethylene film is arranged outside the wrapping layer, a third polytetrafluoroethylene film is arranged between the steel wire braiding shielding layer and the steel wire armor layer, and the outer sheath comprises a polyvinyl chloride sheath and a polytetrafluoroethylene sheath which are nested inside and outside. The power cable has reasonable design, simple structure, good stability, high wear resistance, good high temperature resistance and long service life, and is suitable for large-scale popularization.
Description
Technical Field
The utility model belongs to the field of power cables, and particularly relates to a high-temperature-resistant and corrosion-resistant power cable.
Background
The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river. For the power cable applied to high temperature, corrosion and other environments, high requirements are put on the high temperature resistance and corrosion resistance of the traditional power cable.
The prior patent CN208796698U discloses a high temperature resistant anticorrosion power cable, including cable core, filling layer and cladding in proper order non-woven fabrics band layer, inner sheath, steel wire woven shield layer, steel tape armor and polyvinyl chloride restrictive coating outside the cable core, the cladding has high temperature resistant anticorrosive coating outside the polyvinyl chloride restrictive coating, and high temperature resistant anticorrosive coating still cladding has fire-resistant mica band layer outside, the cable core includes sinle silk and tensile core, and the sinle silk is encircleed the tensile core is the mutual transposition of center, and the sinle silk includes conductor and cladding insulating layer outside the conductor, and the insulating layer cladding has the heat-conducting layer outside the heat-conducting layer, and the cladding has aramid fiber flame retardant layer outside the heat-conducting layer, and the cross-section of conductor is regular hexagon shape. Compared with the prior art, the power cable has the advantages of high temperature resistance, corrosion resistance, strong tensile strength, fire resistance, long service life, high safety coefficient and the like. The cable adopts the mica tape as an outermost protective layer, the wear resistance of the cable is greatly reduced, the damage speed of the integrity of the whole mica tape layer is greatly accelerated once the cable is locally damaged, and the service life of the cable is influenced, in addition, the cable adopts 3 cable cores, if the cable with the inner diameter larger than 3 cable cores is adopted, the combined gap between the cable cores is properly reduced based on the limitation of the whole diameter of the cable, the stability of the internal structure of the cable is improved, and in addition, the high temperature resistance of the cable has a certain lifting space, and the ageing resistance of the insulating layer is improved when the high temperature resistance of the cable is lifted, so that the service performance of the cable in a high temperature environment is ensured.
Disclosure of utility model
Aiming at the technical problems of the power cable, the utility model provides the high-temperature-resistant anti-corrosion power cable which has the advantages of reasonable design, simple structure, good stability, high wear resistance, good high-temperature resistance and long service life.
In order to achieve the above purpose, the technical scheme adopted by the utility model is that the high-temperature-resistant anti-corrosion power cable comprises a plurality of cable cores, wherein each cable core comprises a plurality of conductors, an insulating layer and a shielding layer, wherein the insulating layer and the shielding layer are wrapped outside all the conductors, a filling layer, a wrapping layer, an inner sheath, a steel wire woven shielding layer, a steel tape armor layer and an outer sheath are sequentially arranged outside the cable cores, and the high-temperature-resistant anti-corrosion power cable is characterized in that the number of the cable cores is 7, and the cable cores are respectively 1 central cable core and 6 side cable cores distributed around the central cable core, a star-shaped central sheath is arranged outside the central cable core, 6 cambered surfaces which correspond to the side cable cores one by one are arranged on the periphery of the star-shaped central sheath, a single-sided calcined mica tape layer is arranged outside the single-sided calcined mica tape layer, a first polytetrafluoroethylene film is arranged outside the single-sided calcined mica tape layer, two symmetrically distributed tensile ropes are arranged inside the filling layer, a second polytetrafluoroethylene film is arranged outside the wrapping layer, a third polytetrafluoroethylene film is arranged between the woven shielding layer and the steel wire armor layer, and the third polytetrafluoroethylene sheath comprises nested polytetrafluoroethylene sheaths and the outer polytetrafluoroethylene sheath.
Preferably, the tensile cord comprises a plurality of steel wires stranded together.
Preferably, a fireproof anti-corrosion coating layer is arranged between the polyvinyl chloride sheath and the polytetrafluoroethylene sheath.
Preferably, the thickness of the single-sided calcined mica tape layer is 0.2mm, the mica surface of the single-sided calcined mica tape layer faces inwards, and the lapping overlapping rate of the single-sided calcined mica tape layer is less than 30%.
Preferably, the surfaces of the steel wire shielding braided shielding layer and the steel belt shielding layer are respectively provided with a chromium plating layer.
Compared with the prior art, the utility model has the advantages and positive effects that:
1. The high-temperature-resistant and corrosion-resistant power cable provided by the utility model has the advantages that the 6+1 cable core design, especially the outer side surface design of the central cable core is adopted, the stability of the inside of the cable can be improved, the polytetrafluoroethylene film and the polytetrafluoroethylene sheath are arranged outside the cable core, the wrapping tape layer and the steel wire braided shielding layer, the high-temperature resistance of the cable can be effectively improved, the early aging of the insulating layer is effectively prevented, the polytetrafluoroethylene sheath can also ensure that the cable has better wear resistance, reasonable design, simple structure, better stability, higher wear resistance, good high-temperature resistance and longer service life, and is suitable for large-scale popularization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a high-temperature-resistant and corrosion-resistant power cable according to an embodiment;
In the above figures, 1, cable core, 11, central cable core, 12, side cable core, 13, star-shaped central sheath, 14, single-sided calcined mica tape layer, 15, first polytetrafluoroethylene film, 2, filling layer, 3, wrapping tape layer, 4, inner sheath, 5, steel wire woven shielding layer, 6, steel tape armor layer, 7, outer sheath, 71, polyvinyl chloride sheath, 72, polytetrafluoroethylene sheath, 8, tensile rope, 9, second polytetrafluoroethylene film, 10, third polytetrafluoroethylene film.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are merely used herein to denote a correspondence with the upper, lower, left, and right directions of the drawing figures, and are not limiting on the structure.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
The embodiment is shown in fig. 1, the high-temperature-resistant and corrosion-resistant power cable provided by the utility model comprises a plurality of cable cores 1, wherein each cable core 1 comprises a plurality of conductors, insulating layers and shielding layers which are wrapped outside all the conductors, and a filling layer 2, a wrapping belt layer 3, an inner sheath 4, a steel wire braiding shielding layer 5, a steel belt armor layer 6 and an outer sheath 7 are sequentially arranged outside the plurality of cable cores 1. In order to improve the stability of the internal structure of the cable, 7 cable cores 1 are adopted, 1 central cable core 71 and 6 side cable cores 72 distributed around the central cable core 71 are respectively adopted, a star-shaped central sheath 13 is arranged outside the central cable core 71, and the periphery of the star-shaped central sheath 13 comprises 6 cambered surfaces which are in one-to-one correspondence with the side cable cores 72. The star-shaped central sheath 13 with the outer arc-shaped structure is designed to limit the side cable cores 72 which form a planetary relationship with the star-shaped central sheath, so that the torsion resistance effect between the cable cores 1 is improved, the cable is ensured to maintain higher stability under the action of tensile force, and stable electrical performance is exerted.
On the basis, in order to improve the high temperature resistance of the cable, a single-sided calcined mica tape layer 14 is arranged outside a side cable core 72, a first polytetrafluoroethylene film 15 is arranged outside the single-sided calcined mica tape layer 14, two symmetrically distributed tensile ropes 8 are arranged inside a filling layer 2, a second polytetrafluoroethylene film 9 is arranged outside a wrapping tape layer 3, a third polytetrafluoroethylene film 10 is arranged between a steel wire woven shielding layer 5 and a steel tape armor layer 6, and an outer sheath 7 comprises a polyvinyl chloride sheath 71 and a polytetrafluoroethylene sheath 72 which are nested inside and outside. The polytetrafluoroethylene film is arranged outside the cable core 1, outside the wrapping tape layer 3 and outside the steel wire woven shielding layer 5, the outer sheath 7 is of a double-layer structure and comprises a polytetrafluoroethylene sheath 72, and the polytetrafluoroethylene material is a good high-temperature resistant material, and can effectively exert high-temperature resistance of the cable core, particularly ensure ageing resistance life of an insulating layer of the cable core 1, effectively prevent premature ageing of the insulating layer and improve high-temperature resistance of the cable. The polytetrafluoroethylene sheath 72 serving as the outermost high-temperature resistant protective layer can also ensure that the cable has better wear resistance, and is beneficial to prolonging the actual service life of the cable.
In order to improve the tensile property of the cable, the tensile rope 8 provided by the utility model comprises a plurality of steel wires which are stranded together, and the torsion resistance and the tensile property of the steel wires can be effectively improved by adopting stranded steel wires, so that the cable has a certain auxiliary effect in the aspect of maintaining the tensile effect of the cable.
In order to improve the fire-resistant and corrosion-resistant performance of the cable, besides adopting a double-layer sheath as an outer protective structure, a fire-resistant and corrosion-resistant coating layer is arranged between the polyvinyl chloride sheath 71 and the polytetrafluoroethylene sheath 72, and the fire-resistant and corrosion-resistant coating layer can also increase friction between the polyvinyl chloride sheath 71 and the polytetrafluoroethylene sheath 72 and improve stability and tension after the polyvinyl chloride sheath 71 and the polytetrafluoroethylene sheath are combined.
In order to improve the fireproof performance of the cable core 1, the thickness of the single-sided calcined mica tape layer 14 is 0.2mm, the mica surface of the single-sided calcined mica tape layer 14 is inward, the lapping overlapping rate of the single-sided calcined mica tape layer 14 is less than 30%, the outer surface of the cable core 1 can be effectively covered, the temperature resistance and the insulation performance of the calcined mica tape are greatly improved compared with those of the common mica tape, the calcined mica tape is good in flexibility, and the lapping quality is guaranteed.
In order to improve the corrosion resistance of the cable, the surfaces of the steel wire shielding braided shielding layer and the steel belt shielding layer are subjected to chromium plating treatment, namely the surfaces are provided with chromium plating layers, so that the chemical stability and the heat resistance of the steel wire shielding braided shielding layer and the steel belt shielding layer can be effectively improved after chromium plating, the heat resistance temperature is within 500 ℃, and the actual service life of the cable is prolonged.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421091705.4U CN222281663U (en) | 2024-05-20 | 2024-05-20 | High-temperature-resistant anti-corrosion power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421091705.4U CN222281663U (en) | 2024-05-20 | 2024-05-20 | High-temperature-resistant anti-corrosion power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222281663U true CN222281663U (en) | 2024-12-31 |
Family
ID=93994375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421091705.4U Active CN222281663U (en) | 2024-05-20 | 2024-05-20 | High-temperature-resistant anti-corrosion power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222281663U (en) |
-
2024
- 2024-05-20 CN CN202421091705.4U patent/CN222281663U/en active Active
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