CN117476278A - Composite submarine cable - Google Patents

Composite submarine cable Download PDF

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Publication number
CN117476278A
CN117476278A CN202311770432.6A CN202311770432A CN117476278A CN 117476278 A CN117476278 A CN 117476278A CN 202311770432 A CN202311770432 A CN 202311770432A CN 117476278 A CN117476278 A CN 117476278A
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CN
China
Prior art keywords
layer
cable
inner core
fan
composite
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Granted
Application number
CN202311770432.6A
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Chinese (zh)
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CN117476278B (en
Inventor
杨晓勇
丘晓坤
鲁玉成
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Shenzhen Jili Wire And Cable Co ltd
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Shenzhen Jili Wire And Cable Co ltd
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Priority to CN202311770432.6A priority Critical patent/CN117476278B/en
Publication of CN117476278A publication Critical patent/CN117476278A/en
Application granted granted Critical
Publication of CN117476278B publication Critical patent/CN117476278B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805Protections not provided for in groups H01B7/182 - H01B7/26
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/14Submarine cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875Multi-layer sheaths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/40Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Landscapes

  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention discloses a composite submarine cable, which belongs to the technical field of cables and comprises a composite cable main body, wherein the composite cable main body sequentially comprises a deformation compression-resistant layer, an inner core wire, an armor protection layer and a flattening protection layer from inside to outside, a plurality of partition insulation layers uniformly arranged between the reinforced inner core layer and a shaping insulation ring are divided into a plurality of independent areas, a fan-shaped cable body is arranged in the independent areas, the inner core wire is arranged in the fan-shaped cable body, and insulation fillers are filled around the inner core wire. The invention is designed aiming at the current offshore cable, after the soluble fiber body made of water-soluble fiber material is melted under water, the attaching flattening layer supported by the memory metal can be changed from a cylindrical shape into a blade shape to be attached to two sides of the offshore cable, so that the moving ship anchor is blocked, and the blocked ship anchor can bypass the cable body under the traction bending of the blade-shaped structures on two sides of the cable body, thereby effectively avoiding the situation that the ship anchor breaks the cable body.

Description

Composite submarine cable
Technical Field
The invention relates to the technical field of cables, in particular to a composite submarine cable.
Background
With the importance of offshore energy in China, offshore construction of mining platforms is carried out, offshore photovoltaic and wind power generation projects are erected to generate electricity at sea, and submarine cables which are connected with power on the ground and communicated with the offshore platforms are also more and more important, the submarine cables are laid and are buried and laid according to different areas of shallow sea and deep sea, the cables in the offshore areas are extremely vulnerable to external damage compared with the deep sea cables, so that the cables are buried in the trenches by adopting mechanical equipment to dig deep trenches in the sea bottom during offshore construction, the cables are buried gradually by sea sand under the flow of sea water, the distribution of the submarine cables needs to consider the influence of a plurality of factors, the submarine cables are normally conveyed in a straight line in the sea bottom, the cables can not bypass special areas, some wharfs berth areas are required to be lowered, the ship anchors downwards are required to be lowered when berthed, the use of the ship anchors has great influence on the submarine cables, the submarine cables can be hung up in the running process by the ship anchors, and great losses are caused.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a ship needs to be lowered to a ship anchor when berthed in a sea area where a plurality of wharfs berth, the use of the ship anchor has great influence on a submarine cable, the submarine cable is hung up in the running process of the ship anchor, and serious loss is caused.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the composite submarine cable comprises a composite cable main body, wherein the composite cable main body sequentially comprises a deformation compression-resistant layer, an inner core wire, an armor protection layer and a flattening protection layer from inside to outside;
the deformation compression-resistant layer comprises a reinforced inner core layer positioned at the center and a shaping insulating ring positioned at the outer side, wherein a plurality of independent areas are divided between the reinforced inner core layer and the shaping insulating ring through a plurality of partition insulating layers which are uniformly arranged, fan-shaped cable bodies are arranged in the independent areas, inner core wires are arranged in the fan-shaped cable bodies, and insulating fillers are filled around the inner core wires;
the armor protection layer sequentially comprises a flexible bonding layer, a metal braiding layer, a winding armor layer, a fiber tensile layer and a waterproof membrane rubber layer from inside to outside;
the flattening protective layer comprises a rubber connecting layer connected with the fiber tensile layer, the rubber connecting layer is connected with a laminating flattening layer, a counterweight plastic column is arranged at the end part of the laminating flattening layer, and the counterweight plastic columns are connected through a water-soluble connecting piece.
Preferably, the reinforced inner core layer is composed of an inner core ring connected with the isolating insulating layer and flame-retardant particles filled in the inner core ring.
Preferably, the shaping insulating ring is formed by an inner ring body connected with the isolating insulating layer and an outer ring body connected with the armor protective layer, polyester particles are filled and arranged between the inner ring body and the outer ring body at the upper independent area and the lower independent area, polyester columns are arranged between the inner ring body and the outer ring body at the left independent area and the right independent area along the axis, and the polyester columns are in equidistant isolating arrangement.
Preferably, the fan-shaped cable body consists of an insulating fan-shaped layer, a shielding layer and an insulating filling layer, and the inner core wire is positioned in the fan-shaped cable body and is formed by winding a plurality of strands of wire cores.
Preferably, the laminating flattening layer is made of high-toughness rubber, a memory metal layer is arranged in the laminating flattening layer, the rubber connecting layer is arranged in a conical protrusion mode and is in flexible connection with the laminating flattening layer through rubber, and the memory metal layer in the laminating flattening layer is connected with the fiber tensile layer in a weaving mode.
Preferably, the water-soluble connecting piece comprises a woven fiber column arranged inside the counterweight shaping column, and the woven fiber columns are connected through a readily soluble fiber body composed of a low-temperature soluble fiber material.
Preferably, the fan-shaped cable body is positioned in a fan-shaped independent area, and the adjacent areas are not connected in sliding contact.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention is designed aiming at the current offshore cable, after the soluble fiber body made of water-soluble fiber material is melted under water, the attaching flattening layer supported by the memory metal can be changed from a cylindrical shape into a blade shape to be attached to two sides of the offshore cable, so that the moving ship anchor is blocked, and the blocked ship anchor can bypass the cable body under the traction bending of the blade-shaped structures on two sides of the cable body, thereby effectively avoiding the situation that the ship anchor breaks the cable body.
2. The soluble fiber body made of the water-soluble fiber material can roll the flat protective layer which is unfolded in water on the surface of the cable, so that the cable is ensured to be cylindrical while the cable is laid for protection, the normal use of the existing installation equipment is facilitated, and the installation cost is reduced.
3. Compared with the existing cylindrical cable buried in water, the cable with the blade-shaped water bottom can receive the water pressure and the pressure of sea sand to the greatest extent, so that the possibility that sea sand flows out of the water surface is lower compared with the existing cable, the cable can be buried in the depth of underwater sea sand, and the sea sand can be effectively protected.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional assembly structure of a composite submarine cable according to the present invention;
fig. 2 is a schematic perspective view of a composite submarine cable according to the present invention;
fig. 3 is a schematic cross-sectional view of a main body of a composite submarine cable according to the present invention;
fig. 4 is a schematic structural view of a composite submarine cable according to the present invention in an unfolded state.
In the figure: 1. reinforcing the inner core layer; 101. an inner core ring; 102. flame retardant particles; 2. shaping an insulating ring; 201. an inner ring body; 202. an outer ring body; 203. polyester particles; 204. a polyester column; 3. a fan-shaped cable body; 4. an insulating filler; 5. an armor protection layer; 501. a flexible adhesive layer; 502. a metal braid; 503. winding an armor layer; 504. a fibrous tensile layer; 505. a waterproof membrane rubber layer; 6. a rubber connection layer; 7. attaching a flattening layer; 8. a counterweight plastic column; 9. an inner core wire; 10. braiding fiber columns; 11. a lyotropic fibrous body; 12. isolating the insulating layer.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
1-4, a composite submarine cable comprises a composite cable main body, wherein the composite cable main body sequentially comprises a deformation compression-resistant layer, an inner core wire 9, an armor protection layer 5 and a flat protection layer from inside to outside;
the deformation compression-resistant layer comprises a reinforced inner core layer 1 positioned at the center and a shaping insulating ring 2 positioned at the outer side;
further, the reinforcing inner core layer 1 is composed of an inner core ring 101 connected with the partition insulating layer 12 and flame retardant particles 102 filled in the inner core ring 101;
it should be noted that, the flame retardant particles 102 are also called fire retardant particles, and are one of the materials commonly used for flame retardance in the prior art, the flame retardant particles 102 are arranged in the reinforced inner core layer 1, so that extrusion movement can be realized by using the flame retardant particles 102, namely deformation can be realized, and the structural characteristics that the submarine cable is arranged in a flat shape under the action of self gravity and under the action of seawater pressure are met.
The shaping insulating ring 2 is formed by an inner ring body 201 connected with the isolating insulating layer 12 and an outer ring body 202 connected with the armor protective layer 5, polyester particles 203 are filled and arranged between the inner ring body 201 and the outer ring body 202 at the upper and lower independent areas, the shaping direction of the polyester particles 203 is uncontrollable when the shaping is carried out, the compression resistance and shock absorption effects of the polyester particles can be remarkably improved, a polyester column 204 is arranged between the inner ring body 201 and the outer ring body 202 at the left and right independent areas along the axis, and the polyester columns 204 are arranged in an equidistance isolating way.
By adopting the arrangement of the structure, the polyester column 204 is arranged between the inner ring 201 and the outer ring 202 which are arranged at the left independent area and the right independent area, and the characteristic that the polyester column 204 can realize annular gathering under the fastening action of the bonding flattening layer 7 is utilized, so that the circular shaping effect under the action of the constraint force of the bonding flattening layer 7 is met, and similarly, when the bonding flattening layer 7 is cancelled under the underwater fastening action, the constraint force of the bonding flattening layer 7 is lost, the polyester column 204 can move towards two sides, so that the shape of an original circular cable is changed into a flat shape, and the requirement on the function of the cable is met;
the reinforced inner core layer 1 and the shaping insulating ring 2 are divided into a plurality of independent areas through a plurality of partition insulating layers 12 which are uniformly arranged, the fan-shaped cable body 3 is arranged in the independent areas, the fan-shaped cable body 3 is positioned in the fan-shaped independent areas, the adjacent fan-shaped cable bodies are not connected into sliding contact, and the mutually sliding structure can meet the requirement that after deformation, the fan-shaped cable bodies 3 positioned on two sides can move towards two sides, so that the original round cable is changed into a flat shape, the cable is laid on the seabed, the horizontal height of the cable is reduced, and the damage risk of the cable is reduced.
The inner core wire 9 is arranged in the fan-shaped cable body 3, and the periphery of the inner core wire is filled with insulating filler 4;
further, the fan-shaped cable body 3 consists of an insulating fan-shaped layer, a shielding layer and an insulating filling layer, and the inner core lead 9 is positioned in the fan-shaped cable body 3 and is formed by winding a plurality of strands of wire cores;
it should be noted that, the fan-shaped cable body 3 is independent cable, adjacent each other is not interfered with each other, the rubber material of the fan-shaped cable body has no armor body, and the fan-shaped cable body can be deformed according to pressure.
The armor protection layer 5 sequentially comprises a flexible adhesive layer 501, a metal braiding layer 502, a winding armor layer 503, a fiber tensile layer 504 and a waterproof membrane rubber layer 505 from inside to outside;
it is noted that the names of the components in the scheme are all functional names, the materials used are not limited, and in actual use, the materials are common materials of submarine cables, are the prior art, and are not described in detail herein;
the flat protective layer includes the rubber tie layer 6 of being connected with fibre tensile layer 504, rubber tie layer 6 is connected with laminating flat layer 7, laminating flat layer 7 is made by high-toughness rubber, its inside is provided with the memory metal layer, rubber tie layer 6 is the toper arch setting, it passes through rubber flexonics with laminating flat layer 7, the memory metal layer that sets up in laminating flat layer 7 is woven with fibre tensile layer 504 and is connected, the memory metal layer is woven for the metal of horizontal setting and is formed, when improving intensity, also can satisfy laminating flat layer 7 and realize recovering to the expansion state after relieving the spacing of flat protective layer.
In order to ensure the strength of the bonding flattening layer 7, the memory metal layer arranged in the bonding flattening layer can effectively improve the cutting-proof and cutting-proof strength; through weaving the memory metal layer in laminating flattening layer 7 with the fibre tensile layer 504 in the rubber tie layer 6 and connect, can effectually improve the connection life of rubber tie layer 6 junction, improve the intensity of its junction weak point.
The end part of the bonding flattening layer 7 is provided with a balance weight plastic column 8, the balance weight plastic columns 8 are connected through a water-soluble connecting piece, the water-soluble connecting piece comprises a woven fiber column 10 arranged in the balance weight shaping column, and the woven fiber columns 10 are connected through a soluble fiber body 11 formed by low-temperature soluble fiber materials;
the invention is to say that when the fiber material is used, the easily soluble fiber body 11 composed of the low-temperature soluble fiber material can effectively realize the connection between two adjacent counterweight plastic columns 8 when the fiber material does not touch water, thereby fastening the connection between the two counterweight plastic columns 8, under the effect, the submarine cable before being buried can be ensured to be in a cylindrical state, thereby having the same structure as the existing cable, and meeting the normal operation of the existing laying equipment;
after immersed in the sea, the soluble fiber body 11 can be dissolved within a certain time, the dissolved soluble fiber body 11 can lead the connection between the two counterweight plastic columns 8 to be fastened and broken, after the connection is broken, the memory metal layer arranged in the bonding flattening layer 7 can return to an original unfolding state after losing constraint, so that the cable body is unfolded in a 'blade' shape at the water bottom, and both ends of the cable body are protected by unfolding the bonding flattening layer 7 in a 'blade' shape;
reference may be made to fig. 4; the laminating flattening layer 7 that memory metal supported can be changed into the blade form by cylindric and adhere to the both sides of offshore cable, blocks the ship anchor that moves, and the ship anchor that is in the quilt is can be around the cable main part under the traction bending of the blade form structure in cable main part both sides to the effectual condition that has avoided the ship anchor to cause the stretch-break to the cable main part appears.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (7)

1. The composite submarine cable is characterized by comprising a composite cable main body, wherein the composite cable main body sequentially comprises a deformation compression-resistant layer, an inner core wire (9), an armor protection layer (5) and a flattening protection layer from inside to outside;
the deformation compression-resistant layer comprises a reinforced inner core layer (1) positioned at the center and a shaping insulating ring (2) positioned at the outer side, wherein a plurality of independent areas are divided between the reinforced inner core layer (1) and the shaping insulating ring (2) through a plurality of partition insulating layers (12) which are uniformly arranged, a fan-shaped cable body (3) is arranged in each independent area, inner core wires (9) are arranged in the fan-shaped cable body (3), and insulating fillers (4) are filled around the inner core wires;
the armor protection layer (5) sequentially comprises a flexible bonding layer (501), a metal braiding layer (502), a winding armor layer (503), a fiber tensile layer (504) and a waterproof membrane rubber layer (505) from inside to outside;
the flattening protective layer comprises a rubber connecting layer (6) connected with a fiber tensile layer (504), the rubber connecting layer (6) is connected with a laminating flattening layer (7), a counterweight plastic column (8) is arranged at the end part of the laminating flattening layer (7), and the counterweight plastic columns (8) are connected through a water-soluble connecting piece.
2. A composite submarine cable according to claim 1, wherein the reinforced inner core layer (1) consists of an inner core ring (101) connected to the isolating insulation layer (12) and flame retardant particles (102) filled in the inner core ring (101).
3. The composite submarine cable according to claim 1, wherein the shaping insulating ring (2) comprises an inner ring body (201) connected with the partition insulating layer (12) and an outer ring body (202) connected with the armor protection layer (5), polyester particles (203) are filled and arranged between the inner ring body (201) and the outer ring body (202) at the upper independent area and the lower independent area, polyester columns (204) are arranged between the inner ring body (201) and the outer ring body (202) at the left independent area and the right independent area along an axis, and the polyester columns (204) are arranged in an equidistance partition way.
4. A composite submarine cable according to claim 1, wherein the fan-shaped cable body (3) consists of an insulating fan-shaped layer, a shielding layer and an insulating filling layer, and the inner core wire (9) is positioned in the fan-shaped cable body (3) and is formed by winding a plurality of wire cores.
5. A composite submarine cable according to claim 1, wherein the laminated flat layer (7) is made of high-toughness rubber, a memory metal layer is arranged inside the laminated flat layer, the rubber connecting layer (6) is arranged in a conical bulge mode, the rubber connecting layer is flexibly connected with the laminated flat layer (7) through rubber, and the memory metal layer arranged in the laminated flat layer (7) is connected with the fiber tensile layer (504) in a weaving mode.
6. A composite submarine cable according to claim 1, wherein the water-soluble connector comprises woven fibre columns (10) arranged inside the weight-shaping columns, the woven fibre columns (10) being connected by a readily soluble fibre body (11) of low-temperature soluble fibre material.
7. A composite submarine cable according to claim 1, wherein the fan-shaped cable bodies (3) are in separate areas of the fan shape and are not connected between adjacent ones, in sliding contact.
CN202311770432.6A 2023-12-21 2023-12-21 Composite submarine cable Active CN117476278B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311770432.6A CN117476278B (en) 2023-12-21 2023-12-21 Composite submarine cable

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Application Number Priority Date Filing Date Title
CN202311770432.6A CN117476278B (en) 2023-12-21 2023-12-21 Composite submarine cable

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CN117476278A true CN117476278A (en) 2024-01-30
CN117476278B CN117476278B (en) 2024-03-12

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080102309A1 (en) * 2006-10-27 2008-05-01 Tuffile Charles D Heating element sheaths
CN108053924A (en) * 2017-12-18 2018-05-18 袁书娟 A kind of shock resistance seabed photoelectric composite cable
CN108806867A (en) * 2018-06-04 2018-11-13 广州引航者信息科技有限公司 A kind of abyssal floor cable
CN111524650A (en) * 2020-04-28 2020-08-11 安徽省康利亚股份有限公司 High-temperature silicone rubber cable for railway locomotive current collector
WO2021212588A1 (en) * 2020-04-21 2021-10-28 昆山翰辉电子科技有限公司 Corrosion-resistant underwater cable
CN115394490A (en) * 2022-09-16 2022-11-25 武汉忠信电缆(集团)有限公司 High-performance composite cable and manufacturing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080102309A1 (en) * 2006-10-27 2008-05-01 Tuffile Charles D Heating element sheaths
CN108053924A (en) * 2017-12-18 2018-05-18 袁书娟 A kind of shock resistance seabed photoelectric composite cable
CN108806867A (en) * 2018-06-04 2018-11-13 广州引航者信息科技有限公司 A kind of abyssal floor cable
WO2021212588A1 (en) * 2020-04-21 2021-10-28 昆山翰辉电子科技有限公司 Corrosion-resistant underwater cable
CN111524650A (en) * 2020-04-28 2020-08-11 安徽省康利亚股份有限公司 High-temperature silicone rubber cable for railway locomotive current collector
CN115394490A (en) * 2022-09-16 2022-11-25 武汉忠信电缆(集团)有限公司 High-performance composite cable and manufacturing method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘娟 等: "三芯光纤复合海缆接地故障有限元建模与仿真", 光通信研究, vol. 2017, no. 2, 10 April 2017 (2017-04-10), pages 40 - 43 *

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