CN216412717U - Photoelectric composite shore power drum cable - Google Patents
Photoelectric composite shore power drum cable Download PDFInfo
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- CN216412717U CN216412717U CN202123210926.8U CN202123210926U CN216412717U CN 216412717 U CN216412717 U CN 216412717U CN 202123210926 U CN202123210926 U CN 202123210926U CN 216412717 U CN216412717 U CN 216412717U
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Abstract
The utility model relates to the technical field of cables, in particular to a photoelectric composite shore power reel cable. The conducting wire bundle in the shore power reel cable comprises a conducting wire core. The outer wall of the conductive wire core is sequentially provided with an inner shielding layer, an insulating layer, a semi-conductive wrapping tape and an outer shielding layer along the radial direction. The plurality of strands of conductive wire bundles are arranged in parallel to form a cable structure. The semi-conductive wrapping is wound on the outer side of the cable structure. The inner sheath cladding is in the outside of semiconduction around the package. The outer sheath is coated on the outer side of the inner sheath. The outer wall of the monitoring wire core in the monitoring wire is wrapped with a monitoring wire insulating layer. The multi-strand monitoring wires are arranged in parallel to form a cable core structure. The outside of cable core structure wraps up in proper order has the shielding layer of keeping watch on line and restrictive coating. The fiber bundle is placed in a fiber bundle cavity provided with a rubber strip. The inner shielding layer and the outer shielding layer in the shore power reel cable form a double-layer shielding structure, so that the shielding performance of the reel cable is greatly improved, the running stability of a wharf is ensured, and the operation safety of the wharf is improved.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a photoelectric composite shore power reel cable.
Background
Shore power technology is a technology for stopping the use of a ship's generator when the ship stops at a port terminal for supply or cargo handling, and for supplying power using a land-based terminal power grid. The shore power technology provides clean electric energy for personnel to continue working and living on the ship when the ship only leans on the shore, obviously reduces the use cost and avoids the problem of environmental pollution. Among them, the reel cable is one of the components mainly connecting the ship and the on-shore power box. For example, when a ship is on shore at a dock, the cable drum drives the reel to release the drum cable, thereby enabling connection of the ship to the dock's power grid.
At present, in order to further improve the automation and informatization degree of a wharf, a control cable and a communication cable are further arranged in an existing reel cable besides a power transmission cable, so that the workload of laying each cable is reduced while high information transmission is realized. However, when the composite reel cable is used, electromagnetic interference is easily generated among the cables inside the composite reel cable, so that disorder of an electric control system is caused, normal operation of a wharf is influenced, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reel cable for improving the shielding performance of the existing cable in the process of implementing a shore power technology for a wharf, so that the running stability of the wharf is ensured, and the operation safety of the wharf is improved.
In order to achieve the purpose, the utility model adopts the following scheme: the photoelectric composite shore power reel cable comprises a conductive wire harness, a monitoring wire, an optical fiber wire harness, a semi-conductive wrapping bag, an inner sheath and an outer sheath;
the conductive wire bundle comprises a conductive wire core, an inner shielding layer wraps the outer wall of the conductive wire core, an insulating layer is extruded on the outer wall of the inner shielding layer, a semi-conductive wrapping tape is wound on the outer side of the insulating layer, an outer shielding layer is arranged on the outer wall of the semi-conductive wrapping tape, and a plurality of strands of conductive wire bundles are arranged in parallel to form a cable structure;
the semi-conductive wrapping is wound on the outer side of the cable structure, and a monitoring wire cavity and an optical fiber wiring harness cavity are formed between the semi-conductive wrapping and the cable structure;
the inner sheath is coated on the outer side of the semi-conductive wrapping bag, and the outer sheath is coated on the outer side of the inner sheath;
the monitoring line is arranged in the monitoring line cavity and comprises a monitoring line core, a monitoring line insulating layer wraps the outer wall of the monitoring line core, a plurality of monitoring lines are arranged in parallel to form a cable core structure, a monitoring line shielding layer wraps the outer side of the cable core structure, and a sheath layer wraps the outer side of the monitoring line shielding layer;
the optical fiber harness is arranged in an optical fiber harness cavity, and a rubber strip is arranged in the optical fiber harness cavity.
Preferably, the inner shield layer and the outer shield layer are both of a filament woven structure. So set up, the internal shield layer is used for preventing the outside diffusion of the electromagnetic field of inside conductive core production to the internal shield layer, and the external shield layer is used for the electromagnetic field shielding with adjacent conductive wire bundle production, forms double-deck shielding structure to conductive core from this, and filiform braided structure utilizes the braider to weave the crisscross cover inside and outside the wire and forms, is favorable to further promoting the shielding effect of conductive wire bundle.
Preferably, a peelable insulation shield layer is provided between the insulation layer and the semiconductive tape, and the peelable insulation shield layer is formed by extruding an acrylate rubber containing superconducting carbon black and graphite particles. So set up, be convenient for at the medium-voltage bank electricity wiring in-process, the insulating layer can be followed completely to the strippable type insulation shielding layer and separated, and then has guaranteed the clean and not damaged in surface of insulating layer to the safety in utilization of reel cable has been promoted.
Preferably, a reinforcing layer is arranged between the inner sheath and the outer sheath, and a Kevlar wire drawing structure is filled in the reinforcing layer. So set up, the kevlar wire drawing structure is used for improving the joint strength between inner sheath and the oversheath, has improved reel cable simultaneously along axial tensile strength, and then is favorable to prolonging the life of reel cable.
Preferably, the middle part of the cable structure is provided with a semi-conductive filling strip, and the outer wall of the semi-conductive filling strip is connected with the outer wall of the conductive wire bundle. So set up, semi-conductive packing strip forms radial support to adjacent conductor wire bundle respectively, and then has improved reel cable's radial bearing capacity.
As preferred, be provided with the non-woven fabrics between semiconduction package and the inner sheath and wrap, the non-woven fabrics is the heliciform winding on the outer wall of semiconduction package along the axial of cable structure. So set up, the non-woven fabrics is used for playing the effect of wrapping to the cable structure around the package, prevents the not hard up of wire harness, and the processing of the later process of being convenient for is favorable to improving the fashioned circularity of inner sheath crowded package.
Preferably, the conductive wire core is formed by twisting tinned copper wires. So set up, stranded tinned copper wire transposition has increased the area of contact between the tinned copper wire together, and the physical characteristic of reunion tinned copper wire has reduced contact resistance's numerical value, has reduced the heat that the conductor core produced in the use, and then has avoided the oxidation of tinned copper wire, has further improved the safety in utilization of cable.
Preferably, the Kevlar structure comprises a Kevlar strand, and a plurality of Kevlar monofilaments are twisted to form the Kevlar strand.
Compared with the prior art, the photoelectric composite shore power reel cable provided by the utility model has the following substantive characteristics and progresses:
1. the photoelectric composite shore power reel cable provided by the utility model has the advantages that the inner shielding layer and the outer shielding layer are arranged in the conducting wire bundle to form a double-layer shielding structure, the inner shielding layer prevents the electromagnetic field generated by the inner conducting wire core from diffusing to the outer side of the inner shielding layer, and the outer shielding layer is used for shielding the electromagnetic field generated by the adjacent conducting wire bundle, so that the shielding performance of the reel cable is greatly improved, the disorder of an electric control system caused by electromagnetic interference is avoided, and the running stability of a wharf is further ensured; meanwhile, the double-layer shielding structure can also play a role in grounding protection for the conductive wire bundle, and fault current leaked from the conductive wire bundle can flow into a grounding grid through the inner shielding layer and the outer shielding layer, so that the safety of wharf operation is further improved;
2. the monitoring wire is arranged in the photoelectric composite shore power reel cable and used for protecting the conductive wire bundle, the damage condition of the cable can be reported in advance, the conductive wire bundle in the conductive wire bundle is prevented from being exposed, and the safety of wharf operation is improved.
Drawings
Fig. 1 is a schematic perspective view of a photovoltaic composite shore power drum cable according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of the optoelectric composite type shore power reel cable of fig. 1.
Reference numerals: conductive core 1, internal shield layer 2, insulating layer 3, strippable type insulation shielding layer 4, semiconduction band 5, outer shielding layer 6, semiconduction are around package 7, non-woven fabrics around package 8, inner sheath 9, enhancement layer 10, oversheath 11, monitor line sinle silk 12, monitor line insulating layer 13, monitor line shielding layer 14, restrictive coating 15, optic fibre pencil 16, semiconduction filler strip 17, rubber banding 18.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
The photoelectric composite shore power reel cable shown in fig. 1-2 is used for improving the shielding performance of the existing cable in the process of implementing the shore power technology. The photoelectric composite shore power reel cable forms a double-layer shielding structure by arranging the inner shielding layer and the outer shielding layer in the conducting wire bundle. The inner shielding layer prevents the electromagnetic field that inside conductive wire core produced from diffusing to the outside on inner shielding layer, and the outer shielding layer is used for shielding the electromagnetic field that adjacent conductive wire restraints produced, has promoted the shielding performance of reel cable greatly, has avoided the disorder of electrical system because of electromagnetic interference causes, and then has guaranteed pier moving stability. Meanwhile, the double-layer shielding structure can also play a role in grounding protection of the conductive wiring harness, fault current leaked from the conductive wiring harness can flow into a grounding grid through the inner shielding layer and the outer shielding layer, and the safety of wharf operation is further improved.
As shown in fig. 1, a photoelectric composite shore power reel cable comprises a conductive wire bundle, a monitoring wire, an optical fiber bundle 16, a semi-conductive wrapping 7, an inner sheath 9 and an outer sheath 11. The conductive wire bundle includes a conductive wire core 1. The outer wall of the conductive wire core 1 is wrapped with an inner shielding layer 2. The outer wall of the inner shielding layer 2 is extruded with an insulating layer 3. And a semi-conductive wrapping tape 5 is wound on the outer side of the insulating layer 3. An outer shielding layer 6 is arranged on the outer wall of the semi-conductive wrapping tape 5. The plurality of strands of conductive wire bundles are arranged in parallel to form a cable structure. The number of strands of the conductive wire bundle in the cable structure can be selected to be 2-5. As shown in FIG. 2, the cable structure will be described by taking 3-strand wire harness as an example
The semi-conductive wrapping 7 is wound around the outside of the cable structure. A monitoring wire cavity and an optical fiber wiring harness cavity are arranged between the semi-conductive wrapping 7 and the cable structure. The inner sheath 9 is coated on the outer side of the semi-conductive wrapping 7. The outer sheath 11 is wrapped outside the inner sheath 9. Fiber optic harness 16 is disposed within the fiber optic harness cavity. The optical fiber wiring harness cavity is provided with a rubber strip 18.
The monitoring line is disposed within the monitoring line cavity. The monitoring line includes a monitoring line core 12. The outer wall of the monitoring wire core 12 is wrapped with a monitoring wire insulation layer 13. The multi-strand monitoring wires are arranged in parallel to form a cable core structure. The number of strands of the monitoring wire in the cable core structure can be selected to be 2-5. As shown in fig. 2, the cable core structure has 4 monitoring wires. The outer side of the cable core structure is wrapped with a monitoring wire shielding layer 14. The outside of the monitor wire shield layer 14 is covered with a sheath layer 15. The monitoring wire is used for protecting the conductive wire bundles, the damage condition of the cable can be reported in advance, the conductive wire bundles in the conductive wire bundles are prevented from being exposed, and the safety of wharf operation is improved.
The photoelectric composite shore power reel cable provided by the embodiment of the utility model has the characteristics of seawater corrosion resistance, wear resistance, good flexibility, stable signal transmission and the like, and can effectively ensure power supply, photoelectric transmission, signal control and grounding safety protection at the same time in the use environment of large hoisting equipment, photoelectric transmission equipment and shore power supply systems in ultra-large ocean cargo ships, ports and the like.
Wherein, the inner shielding layer 2 and the outer shielding layer 6 are both in a filiform weaving structure. So set up, internal shield layer 2 is used for preventing the electromagnetic field that inside conductive wire core 1 produced from to the outside diffusion of internal shield layer 2. The outer shielding layer 6 serves to shield an electromagnetic field generated by the adjacent conductive wire bundle, thereby forming a double-layer shielding structure for the conductive wire core 1. The wire-shaped braided structure is formed by covering and braiding the metal wires inside and outside in a staggered manner by using a braiding machine, and the shielding effect of the conductive wire bundle is further improved.
For example, the thickness of the inner shield layer 2 is 0.7 mm. The insulating layer 3 can be made of ethylene propylene rubber by extrusion, and the thickness of the ethylene propylene rubber is 3.4 mm. The thickness of the semiconductive tape 5 is 0.15 mm. The thickness of the monitor wire insulating layer 13 was 0.7 mm. The sheath layer 15 may also be made of ethylene propylene rubber by extrusion, and the thickness is 2.1 mm. The inner sheath 9 is made of nitrile rubber by extrusion and has a thickness of 2.2 mm. The thickness of the outer jacket 11 is 3.4 mm.
The rubber strip 18 may be selected as a vulcanized rubber filling strip. So set up, utilize the good elasticity of vulcanization type rubber for the rubber banding is convenient for absorb impact energy at the radial better of cable, and then forms the protection to the inside conductive wire harness of cable and optic fibre pencil 16. Meanwhile, the filling strips with good elasticity also improve the tensile strength of the cable, so that the cable can bear larger axial load.
As shown in fig. 2, a reinforcing layer 10 is provided between the inner sheath 9 and the outer sheath 11. The reinforcing layer 10 is filled with a Kevlar wire drawing structure. So set up, the kevlar wire drawing structure is used for improving the joint strength between inner sheath 9 and oversheath 11, has improved reel cable simultaneously along axial tensile strength, and then is favorable to prolonging the life of reel cable. The Kevlar wire drawing structure comprises a Kevlar wire harness, and a plurality of Kevlar monofilaments are twisted to form the Kevlar wire harness. For example, the kevlar drawn structure has 24 kevlar strands, each of which is twisted of 100 kevlar monofilaments. The wire diameter of the Kevlar monofilament is 0.015 mm.
The conductive wire core 1 is formed by twisting tinned copper wires. So set up, stranded tinned copper wire transposition has increased the area of contact between the tinned copper wire together, and the physical characteristic of reunion tinned copper wire has reduced contact resistance's numerical value, has reduced the heat that conductive core 1 produced in the use, and then has avoided the oxidation of tinned copper wire, has further improved the safety in utilization of cable.
As shown in fig. 2, a peelable insulating shield layer 4 is provided between the insulating layer 3 and the semiconductive tape 5. The peelable insulation shield layer 4 is extruded from an acrylate rubber containing superconducting carbon black and graphite particles. So set up, be convenient for at the medium-voltage bank electricity wiring in-process, strippable type insulation shielding layer 4 can be followed insulating layer 3 completely and separated, and then has guaranteed that insulating layer 3's surface is clean and not damaged to the safety in utilization of reel cable has been promoted. The thickness of the peelable insulation shield layer 4 was 0.7 mm.
And a non-woven fabric wrapping 8 is arranged between the semi-conductive wrapping 7 and the inner sheath 9. The non-woven fabrics is around 8 axial of cable structure along the line and is the heliciform winding on the outer wall of semiconduction package 7. So set up, the non-woven fabrics is used for playing the effect of wrapping up to the cable structure around package 8, prevents the not hard up of wire harness. The processing of the subsequent procedure is convenient, and the roundness of the extrusion molding of the inner sheath 9 is improved.
The middle of the cable structure is provided with a semi-conductive filler strip 17. The outer wall of the semiconductive filling strip 17 is connected with the outer wall of the conductive wire harness. So set up, semi-conductive filler strip 17 forms radial support to adjacent conductive pencil respectively, and then has improved the radial bearing capacity of reel cable.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the utility model.
Claims (7)
1. A photoelectric composite shore power reel cable is characterized by comprising a conductive wire harness, a monitoring wire, an optical fiber wire harness, a semi-conductive wrapping bag, an inner sheath and an outer sheath;
the conductive wire bundle comprises a conductive wire core, an inner shielding layer wraps the outer wall of the conductive wire core, an insulating layer is extruded on the outer wall of the inner shielding layer, a semi-conductive wrapping tape is wound on the outer side of the insulating layer, an outer shielding layer is arranged on the outer wall of the semi-conductive wrapping tape, and a plurality of strands of conductive wire bundles are arranged in parallel to form a cable structure;
the semi-conductive wrapping is wound on the outer side of the cable structure, and a monitoring wire cavity and an optical fiber wiring harness cavity are formed between the semi-conductive wrapping and the cable structure;
the inner sheath is coated on the outer side of the semi-conductive wrapping bag, and the outer sheath is coated on the outer side of the inner sheath;
the monitoring line is arranged in the monitoring line cavity and comprises a monitoring line core, a monitoring line insulating layer wraps the outer wall of the monitoring line core, a plurality of monitoring lines are arranged in parallel to form a cable core structure, a monitoring line shielding layer wraps the outer side of the cable core structure, and a sheath layer wraps the outer side of the monitoring line shielding layer;
the optical fiber harness is arranged in an optical fiber harness cavity, and a rubber strip is arranged in the optical fiber harness cavity.
2. The photovoltaic composite shore power reel cable according to claim 1, wherein the inner shield layer and the outer shield layer are both of a filament woven structure.
3. The shore power drum cable of the photoelectric composite type as claimed in claim 1, wherein a reinforcing layer is arranged between the inner sheath and the outer sheath, and a kevlar structure is filled in the reinforcing layer.
4. The photoelectric composite shore power reel cable according to claim 1, wherein a semi-conductive filler strip is arranged in the middle of the cable structure, and the outer wall of the semi-conductive filler strip is connected with the outer wall of the conductive wire harness.
5. The photoelectric composite shore power reel cable according to claim 1, wherein a non-woven fabric wrapping is arranged between the semi-conductive wrapping and the inner sheath, and the non-woven fabric wrapping is spirally wound on the outer wall of the semi-conductive wrapping along the axial direction of the cable structure.
6. The photovoltaic composite shore power drum cable according to claim 1, wherein the conductive wire core is stranded with tinned copper wires.
7. The shore power drum cable of the photoelectric composite type as claimed in claim 3, wherein the Kevlar structure comprises a Kevlar harness, and a plurality of Kevlar monofilaments are twisted to form the Kevlar harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123210926.8U CN216412717U (en) | 2021-12-20 | 2021-12-20 | Photoelectric composite shore power drum cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123210926.8U CN216412717U (en) | 2021-12-20 | 2021-12-20 | Photoelectric composite shore power drum cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216412717U true CN216412717U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123210926.8U Active CN216412717U (en) | 2021-12-20 | 2021-12-20 | Photoelectric composite shore power drum cable |
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|---|---|
| CN (1) | CN216412717U (en) |
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2021
- 2021-12-20 CN CN202123210926.8U patent/CN216412717U/en active Active
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