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Manufacturing method for seabed photoelectricity composite rope with split conductor in huge cross section

A technology for optoelectronic composite cables and split conductors, which is used in cable/conductor manufacturing, power cables with shielding/conducting layers, power cables, etc. High quality and safety, tight arrangement and combination, good transmission performance

Active Publication Date: 2014-06-25
SICHUAN MINGXING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the prior art represented by the above-mentioned patent documents still has the following defects in actual use: 1. The conductor section of the composite cable is a tightly compressed circular shape. The "skin effect" and "proximity effect" generated under the action of high voltage and current are high, resulting in an increase in the resistance of the composite cable
2. The applicable distance of the composite cable is short. When the two ends to be connected exceed 10KM, its signal passing performance, voltage and current passing performance and safety performance are low
3. The composite cable is only suitable for laying within 200 meters of the seabed. Its suitable depth is shallow and it is easy to be caught by tools such as anchors, iron hooks or fishing gear of ships on the sea surface, causing damage to the cable and causing damage to the equipment at both ends. damage to
4. The cross-sectional area of ​​the cable is limited, and the capacity of transmitting electric energy is small

Method used

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  • Manufacturing method for seabed photoelectricity composite rope with split conductor in huge cross section
  • Manufacturing method for seabed photoelectricity composite rope with split conductor in huge cross section

Examples

Experimental program
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Embodiment 1

[0037] A method for manufacturing a subsea photoelectric composite cable with super-large cross-section split conductors, comprising the following steps: wire drawing—strandizing—splitting strands—splitting conductors—three-layer co-extrusion—wrapping water blocking tape—degassing treatment—lead sheath extrusion - Extrusion of semi-conductive sheath - Stranding of optical unit - Steel wire armor - Extrusion of outer sheath - Finished wire take-up, of which:

[0038] The wire drawing refers to drawing an electrical round copper rod through a large drawing machine into a round and smooth copper wire. The electrical round copper rod is preferably used as the raw material for drawing, but it is not limited to this method.

[0039] The stranding means that the copper wire made after the wire drawing process is twisted by a stranding machine to obtain a cross-sectional area of ​​500mm. 2 circular conductors, wherein the twisting speed of the stranding machine is controlled at 3m / min...

Embodiment 2

[0055] The implementation method of this embodiment is basically the same as the above-mentioned embodiment, and its difference is:

[0056] The stranding means that the copper wire made after the wire drawing process is twisted by a stranding machine to obtain a cross-sectional area of ​​500mm. 2 5 circular conductors, wherein the twisting speed of the twisting machine is controlled at 5m / min.

[0057] The split conductor 1 is a conductor formed by cabling 5 split strands by using a horizontal cable forming machine, wherein the cabling speed of the horizontal cable forming machine is controlled at 14rpm.

[0058] The lead sheath extrusion refers to that the cable core made after the degassing process enters the pay-off turntable of the lead pressing machine through the large-diameter transfer turntable with retractable function, and the lead sheath is extruded by the lead pressing machine. cover 6, and coat asphalt on the lead sheath 6 to form an asphalt anti-corrosion layer...

Embodiment 3

[0064] The implementation method of this embodiment is basically the same as the above-mentioned embodiment, and its difference is:

[0065] The stranding means that the copper wire made after the wire drawing process is twisted by a stranding machine to obtain a cross-sectional area of ​​500mm. 2 5 circular conductors, where the twisting speed of the twisting machine is controlled at 4m / min.

[0066] The split conductor 1 is a conductor formed by cabling 5 split strands by using a horizontal cable-forming machine, wherein the cable-forming speed of the horizontal cable-forming machine is controlled at 13 rpm.

[0067] The lead sheath extrusion refers to that the cable core made after the degassing process enters the pay-off turntable of the lead pressing machine through the large-diameter transfer turntable with retractable function, and the lead sheath is extruded by the lead pressing machine. cover 6, and coat asphalt on the lead sheath 6 to form an asphalt anti-corrosion ...

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Abstract

The invention discloses a manufacturing method for a seabed photoelectricity composite rope with a split conductor in huge cross section, which comprises the following steps: wire drawing, twisting, strand segmentation, conductor segmentation, three-layer extrusion, water stop band wrapping, degassing treatment, lead sheath extrusion, semiconductive sheath extrusion, optical unit twisting, wire armoring, outer sheath extrusion and finished product winding. The maximum sectional area of the conduct of the seabed photoelectricity composite rope manufactured through the method provided by the invention can reach 2500mm2, the seabed photoelectricity composite rope can bear the voltage of 220 KV to the maximum when in operation at seabed, the depth of the paved seabed photoelectricity composite rope can reach 8KM, and the distance of two objects connected by the seabed photoelectricity composite rope can reach 40KM, so that the product has high capacity and high security in the transmission of electric energy.

Description

technical field [0001] The invention relates to the field of power cables, in particular to a cable whose cross-sectional area can reach 2500mm 2 A method of manufacturing an ultra-large cross-section split-conductor submarine optical-electrical composite cable. Background technique [0002] Existing submarine photoelectric composite cables are mainly used between land and islands, for crossing rivers, harbors, and interconnecting land and drilling platforms or interconnecting drilling platforms. Due to the complex and changeable seabed environment, affected by various factors such as seawater pressure or various large marine animals, the photoelectric composite cable is easily corroded and damaged on the seabed, which affects the safety of the photoelectric composite cable. [0003] In order to solve the above problems, the following patented technologies have been proposed in the prior art: [0004] Chinese Patent No. "201120212035.3" discloses a submarine photoelectric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B9/00H01B9/02
Inventor 江巍李广元沈卢东盛业武陈光高王新刚
Owner SICHUAN MINGXING CABLE
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