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Offshore floating wind power generation cable

A cable and cable length technology, applied in power cables, floating cables, insulated cables, etc., can solve problems such as small specific gravity, poor cable flexibility and bending performance, and cables not suitable for bending

Pending Publication Date: 2022-03-11
ANHUI HUANENG CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The floating body itself has a small specific gravity, so that the specific gravity of the entire cable is smaller than that of water and can directly float on the water. When the cable is used for water operations, although it can float on the water, the appearance is clearly visible and it is easy to maintain. However, the cable The flexibility and bending performance are relatively poor. When the cable needs to be bent, wrapped and transported, the floating body is relatively thick, so the cable as a whole is not suitable for bending, which affects its transportation efficiency.

Method used

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  • Offshore floating wind power generation cable
  • Offshore floating wind power generation cable
  • Offshore floating wind power generation cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An offshore floating wind power generation cable, comprising an inner distribution layer 3, the outer part of the inner distribution layer 3 is provided with a bending unit 2 along the length direction of the cable to facilitate the overall bending of the cable, and the outer part of the bending unit 2 is provided with a device along the length direction of the cable to facilitate floating floating layer 1 on the sea surface;

[0028] The bending unit 2 includes an inner helical layer 201 sleeved outside the inner distribution layer 3 and an outer helical layer 202 arranged on the inner wall of the floating layer 1. The inner helical layer 201 includes an inner helical convex part 2011 and an inner helical concave part 2012. The helical layer 202 includes an outer helical convex portion 2021 and an outer helical concave portion 2022, an interference fit between the outer helical convex portion 2021 and an inner helical concave portion 2012, and an interference fit betwee...

Embodiment 2

[0035] The difference between this embodiment and Embodiment 1 is that the inside of the inner spiral protrusion 2011 is provided with connecting holes 4 at equal intervals along its length direction, and the inside of the outer spiral protrusion 2021 is provided with equal intervals along its length direction. There are connecting holes 4, the connecting holes 4 are parallel to the cable core, the connecting holes 4 inside the inner spiral raised portion 2011 communicate with the connecting holes 4 inside the outer spiral raised portion 2021, and each connecting hole 4 is located on two adjacent sides. Between the raised particles 2013, the connection holes 4 are connected to each other, and the interior is filled with dry air, so that the cable as a whole is more buoyant, and it is easier to float on the sea surface. When the cable is bent as a whole, it is located The connection hole 4 inside the bending part will be squeezed, so that the connection hole 4 is closed, and the...

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Abstract

The invention discloses an offshore floating wind power generation cable, which comprises an inner distribution layer, a bending unit convenient for bending the whole cable is arranged outside the inner distribution layer along the length direction of the cable, and a floating layer convenient for floating on the sea surface is arranged outside the bending unit along the length direction of the cable. According to the invention, no matter how the cable is bent, the space A and the space B formed between the inner spiral layer and the outer spiral layer in the cable can be gradually reduced, so that the bending unit can be bent, the overall bending of the cable is not influenced under the condition that the overall thickness and floating of the cable are not influenced, and the use effect is better; meanwhile, when the cable is bent and wound manually, the protruding particles can be separated from the groove in the initial position and clamped into the other grooves, and when the protruding particles are clamped into the other grooves, due to the clamping force between the protruding particles and the other grooves, the cable can be always kept in the bent state after the cable is bent and wound manually.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to an offshore floating wind power generation cable. Background technique [0002] Most of the existing offshore floating cables include several insulated wires distributed in a circle, the insulated wires are provided with an outer sheath, and floating bodies are provided at any position inside the outer surface of the outer sheath. The floating body itself has a small specific gravity, so that the specific gravity of the entire cable is smaller than that of water and can directly float on the water. When the cable is used for water operations, although it can float on the water, the appearance is clearly visible and it is easy to maintain. However, the cable The flexibility and bending performance are relatively poor. When the cable needs to be bent, wound and transported, the floating body is relatively thick, so the cable as a whole is not suitable for bending, which affects its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/12H01B7/04H01B9/06
CPCH01B7/12H01B7/045H01B9/06Y02A30/14
Inventor 宫传播肖尚浩束义飞胡春宇吴振沈军
Owner ANHUI HUANENG CABLE GRP
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