CN210052553U - Seabed photoelectric composite cable - Google Patents
Seabed photoelectric composite cable Download PDFInfo
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- CN210052553U CN210052553U CN201921330396.0U CN201921330396U CN210052553U CN 210052553 U CN210052553 U CN 210052553U CN 201921330396 U CN201921330396 U CN 201921330396U CN 210052553 U CN210052553 U CN 210052553U
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Abstract
A submarine photoelectric composite cable comprises an optical fiber component, a conductor layer, a shielding layer, a protective layer, an armor layer and an outer tegument layer which are sequentially coated from inside to outside, the conductor layer comprises a conductor component, the conductor component is stranded outside the optical fiber component, the seabed photoelectric composite cable also comprises a ground wire component, the ground wire assembly is filled in a gap between the conductor layer and the shielding layer and/or between the conductor layer and the optical fiber assembly, the conductor assembly comprises a conductor, taking the section of each conductor along the radial direction of the conductor assembly as a first section, wherein the ground wire assembly comprises a second conductor, taking the section of the second conductor along the radial direction of the ground wire assembly as a second section, wherein the area of any first section is smaller than that of the second section, the optical fiber assembly comprises an optical fiber unit and a heat insulation layer, wherein the heat insulation layer is coated outside the optical fiber unit. The submarine photoelectric composite cable can effectively lead out short-circuit current and prevent the optical fiber from being in a high-temperature environment.
Description
Technical Field
The utility model relates to a cable manufacturing field especially relates to a seabed photoelectricity composite cable.
Background
In a submarine observation network system, electric energy and information loop transmission between a submarine main node and branch node equipment is generally realized by adopting a submarine photoelectric composite cable, the existing submarine photoelectric composite cable realizes information loop transmission through optical fibers, and electric energy loop transmission is realized through a conductor assembly. Most of submarine photoelectric composite cables are provided with backup cable cores for fault backup, but when the submarine photoelectric composite cables are subjected to insulation breakdown, the conventional submarine photoelectric composite cables cannot effectively lead short-circuit current, so that a plurality of conductor components can be simultaneously broken down or the current is too large, and the backup cable cores in the submarine photoelectric composite cables and underwater equipment connected with the submarine photoelectric composite cables can be damaged. And under the long-time operating condition of current photoelectric composite cable, because of the circuit loss dissipation calorific capacity causes the temperature to rise under the circular telegram condition, in long-time high temperature environment, can cause optic fibre life to reduce, optic fibre loss increase to influence the life and the signal transmission quality of cable.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for a submarine photoelectric composite cable capable of effectively conducting short-circuit current and avoiding the optical fiber from being in a high temperature environment.
An embodiment of the present invention provides a submarine photoelectric composite cable, including an optical fiber assembly, a conductive layer, a shielding layer, a sheath layer, an armor layer, and a jacket layer, which are sequentially coated from inside to outside, wherein the conductive layer includes a conductor assembly, the conductor assembly is twisted outside the optical fiber assembly, the submarine photoelectric composite cable further includes a ground wire assembly, the ground wire assembly is filled between the conductive layer and the shielding layer and/or in a gap between the conductive layer and the optical fiber assembly, the conductor assembly includes conductors, a radial cross section of each conductor along the conductor assembly is a first cross section, the ground wire assembly includes a second conductor, a radial cross section of the second conductor along the ground wire assembly is a second cross section, any one of the first cross section areas is smaller than the second cross section area, the optical fiber assembly includes an optical fiber unit and a thermal insulation layer, the thermal insulation layer is coated outside the optical fiber unit.
Furthermore, the undersea photoelectric composite cable further comprises a water blocking material, and the water blocking material is filled in the twisting gaps among the optical fiber assembly, the conductor assembly and the ground wire assembly.
Further, the ground wire assembly further comprises a semi-conductive sheath, and the semi-conductive sheath is wrapped outside the second conductor.
Further, the optical fiber units are distributed at the axial position of the submarine photoelectric composite cable.
Furthermore, the optical fiber unit comprises an optical fiber tube and a first protective layer, the first protective layer is coated outside the optical fiber tube, and the heat insulation layer is coated outside the first protective layer.
Furthermore, the optical fiber tube comprises optical fibers, water-blocking factice and a stainless steel tube, wherein the optical fibers are arranged in the stainless steel tube, and the water-blocking factice is filled in the stainless steel tube.
Further, the conductor assembly further comprises an insulating layer, and the insulating layer is wrapped outside the conductor.
Further, the armor comprises a reinforcing piece, and the reinforcing piece is arranged outside the sheath in a twisted mode to form an armor structure.
Furthermore, the number of layers of the armored structure is 1-6.
Furthermore, water-blocking asphalt is filled in gaps of the armor structure.
In the above submarine photoelectric composite cable, the ground wire assembly is filled in a gap between the conductor layer and the shielding layer and/or between the conductor layer and the optical fiber assembly, and any one of the first cross-sectional areas is smaller than the second cross-sectional area, so that the current magnitude borne by the ground wire assembly is greater than or equal to the current magnitude passed by any one of the conductor assemblies, thereby effectively leading out short-circuit current when insulation breakdown occurs, and further protecting the backup wire core and the underwater equipment. The heat insulation layer is coated outside the optical fiber unit so as to effectively block the temperature emitted by the conductor layer during working and enable the temperature of the optical fiber to be in a lower range.
Drawings
Fig. 1 is a structural diagram of a submarine photoelectric composite cable according to an embodiment of the present invention.
Fig. 2 is a structural diagram of an optical fiber unit according to an embodiment of the present invention.
Description of the main elements
| Seabed photoelectric |
100 |
| |
10 |
| |
11 |
| |
111 |
| |
1111 |
| Water-blocking |
1112 |
| |
1113 |
| The |
112 |
| |
12 |
| |
20 |
| |
21 |
| |
211 |
| |
212 |
| |
30 |
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40 |
| |
41 |
| Semi-conductive |
42 |
| |
50 |
| |
60 |
| Reinforcing |
61 |
| |
70 |
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and detailed description. In addition, the features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments of the invention, which are described as part of the invention, rather than as a whole. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the scope protected by the embodiments of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the present invention belong. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the invention.
Referring to fig. 1, the undersea optical-electrical composite cable 100 includes an optical fiber assembly 10, a conductor layer 20, a shielding layer 30, a sheath layer 50, an armor layer 60, and a jacket layer 70, which are sequentially covered from inside to outside. The undersea photoelectric composite cable 100 further includes a plurality of ground wire assemblies 40, and the ground wire assemblies 40 are filled in gaps between the conductor layer 20 and the shielding layer 30 and/or between the conductor layer 20 and the optical fiber assembly 10, so as to effectively lead out short-circuit current when insulation breakdown occurs, thereby protecting backup cores and underwater equipment.
Referring to fig. 1 and 2, the optical fiber assembly 10 includes optical fiber units 11 and a thermal insulation layer 12, wherein the thermal insulation layer 12 is coated outside each of the optical fiber units 11. The optical fiber units 11 are distributed substantially at the axial position of the submarine photoelectric composite cable 100. The optical fiber unit 11 includes an optical fiber tube 111 and a first protective layer 112, which are sequentially covered from inside to outside. Specifically, the optical fiber tube 111 includes an optical fiber 1111, a water-blocking ointment 1112, and a stainless steel tube 1113. The optical fiber 1111 is installed in the stainless steel pipe 1113, and the number of the cores of the optical fiber 1111 is 1-192. The water-blocking ointment 1112 is filled in the stainless steel tube 1113 to improve the water-blocking performance of the optical fiber tube 111. The first sheath 112 is used to protect the optical fiber tube 111. In one embodiment, the fiber optic assembly 10 includes 1 fiber unit 11. It is understood that the number of the optical fiber units 11 is not limited to one of the embodiments, and may be adjusted according to specific requirements. The first sheath 112 is made of one or more of polyethylene, polypropylene, polyvinyl chloride, and other equivalent materials. The stainless steel pipe 1113 is formed by seamless welding of stainless steel bands.
The thermal insulation layer 12 is coated outside the first protective layer 112 to effectively block the temperature emitted by the conductor layer 20 during operation, so that the temperature of the optical fiber 1111 is in a lower range, thereby avoiding the reduction of the service life and the increase of the optical fiber loss of the optical fiber due to high temperature, and further avoiding the reduction of the transmission performance of the optical fiber 1111. In one embodiment, the insulating layer 12 is made of one or more of mica, asbestos, and other equivalent materials.
The conductor layer 20 includes a plurality of conductor assemblies 21, the conductor assemblies 21 are twisted and arranged outside the optical fiber assembly 10, and each of the conductor assemblies 21 is tangential to the optical fiber assembly 10. The conductor assembly 21 includes a plurality of conductors 211 and an insulating layer 212 in sequence from inside to outside. In one embodiment, the conductor layer 20 includes 6 conductor assemblies 21, and the conductor assemblies 21 are uniformly arranged on the peripheral side of the optical fiber assembly 10. The conductor 211 is made of one or more of copper, aluminum, and other equivalent materials. The insulating layer 212 is made of one or more of polyethylene, polypropylene, polyvinyl chloride, and other equivalent materials.
The shielding layer 30 is wrapped outside the conductor layer 20, and specifically, an inner wall of the shielding layer 30 is tangent to each of the conductor assemblies 21. The ground wire assembly 40 is filled in the gap between the conductor assembly 21 and the shielding layer 30 and/or between the conductor assembly 21 and the optical fiber assembly 10. The undersea optical/electrical composite cable 100 further includes a water blocking material (not shown) filled in a twisted gap between the optical fiber assembly 10, the conductor assembly 21 and the ground wire assembly 40 to improve the water blocking performance of the undersea optical/electrical composite cable 100.
The ground assembly 40 is connected to the subsea equipment ground or directly to the water, forming an effective ground, and thus an effective conductor short circuit current when the conductor assembly 21 breaks down. The ground wire assembly 40 includes a second conductor 41 and a semi-conductive sheath 42 in sequence from inside to outside. A cross section of each conductor 211 along the radial direction of the conductor assembly 21 is a first cross section, and a cross section of the second conductor 41 along the radial direction of the ground wire assembly 40 is a second cross section, and an area of any one of the first cross sections is smaller than an area of the second cross section. So that the current amount borne by the ground wire assembly 40 is equal to or greater than the current amount passed by any one of the conductor assemblies 21, thereby preventing the short-circuit current from blowing the ground wire assembly 40 when insulation breakdown occurs. In one embodiment, the undersea optical/electrical composite cable 100 includes 6 ground wire assemblies 40, and each ground wire assembly 40 is filled in a gap near the shielding layer 30. The shielding layer 30 is made of metal plastic composite tape, metal plastic composite foil and other equivalent materials. The second conductor 41 is made of one or more of copper, aluminum and other equivalent materials. It will be appreciated that the construction of the ground wire assembly 40 may be adapted to specific requirements, the ground wire assembly 40 only comprising the second conductor 41, the second conductor 41 being made of a metal conductor.
The sheath 50 is extruded over the shield 30. in one embodiment, the sheath 50 is made of one or more of polyethylene, polypropylene, polyvinyl chloride, ethylene propylene rubber, polyurethane, and other equivalent materials.
In one embodiment, the armor 60 includes strength members 61, and the strength members 61 are stranded outside the sheath 50 to form a multi-layered armor structure (not shown) for protecting the undersea optical/electrical composite cable 100. In one embodiment, the reinforcement 61 is made of steel wire or a non-metallic reinforcing material. In other embodiments, the stiffener 61 is made of one or more of steel strip, steel wire, non-metallic reinforcement, and other equivalent materials. The number of the armor structure layers is 1-6. And water-blocking asphalt is filled in the gap of the armor structure so as to improve the water-blocking capability of the submarine photoelectric composite cable 100.
The outer layer 70 covers the armor layer 60 to protect the undersea optical/electrical composite cable 100. In one embodiment, the outer layer 70 is stranded to the exterior of the armor 60 by polypropylene strands. In other embodiments, the outer layer 70 is extruded over the armor 60 by one or more of polyethylene, polyurethane, polypropylene, and other equivalent materials.
When the submarine photoelectric composite cable 100 is used, the corresponding conductor assemblies 21 can be connected according to different power requirements, so that different powers can be used. The ground wire assembly 40 is connected to the ground electrode, and when insulation breakdown occurs, short-circuit current flows through the ground wire assembly 40 to achieve drainage, so that a backup wire core and underwater equipment are protected.
In the above submarine photoelectric composite cable 100, the ground wire assembly 40 is filled in the gap between the conductor layer 20 and the shielding layer 30 and/or the gap between the conductor layer 20 and the optical fiber assembly 10, so as to effectively lead out a short-circuit current when insulation breakdown occurs, thereby protecting a backup cable core and underwater equipment. The area of any first section is smaller than the total area of the second section, so that the current borne by the ground wire assembly 40 is larger than or equal to the current passing through any conductor assembly 21, and a backup wire core and underwater equipment are protected. The thermal insulation layer 12 is coated outside the first protective layer 112, and effectively blocks the temperature emitted by the conductor layer 20 during operation, so that the temperature of the optical fiber 1111 is in a lower range, thereby avoiding the reduction of the service life and the increase of the optical fiber loss of the optical fiber due to high temperature, and further avoiding the reduction of the transmission performance of the optical fiber 1111.
The above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention and are not limited, and although the embodiments of the present invention have been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions to the technical solutions of the embodiments of the present invention may be made without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a seabed photoelectric composite cable, includes by interior and outer optical fiber assembly, conductor layer, shielding layer, sheath, armor and the outer tegument that the cladding set up in proper order, its characterized in that: the conductor layer comprises a conductor component, the conductor component is stranded outside the optical fiber component, the seabed photoelectric composite cable further comprises a ground wire component, the ground wire component is filled in gaps between the conductor layer and the shielding layer and/or between the conductor layer and the optical fiber component, the conductor component comprises conductors, each conductor is taken as a first section along the radial section of the conductor component, the ground wire component comprises a second conductor, the second conductor is taken as a second section along the radial section of the ground wire component, the area of any first section is smaller than that of the second section, the optical fiber component comprises an optical fiber unit and a heat insulation layer, and the heat insulation layer is coated outside the optical fiber unit.
2. The undersea optical-electrical composite cable of claim 1, wherein: the undersea photoelectric composite cable further comprises a water blocking material, and the water blocking material is filled in stranded gaps among the optical fiber assembly, the conductor assembly and the ground wire assembly.
3. The undersea optical-electrical composite cable of claim 1, wherein: the ground wire assembly further comprises a semi-conductive sheath wrapped around the second conductor.
4. The undersea optical-electrical composite cable of claim 1, wherein: the optical fiber units are distributed at the axial position of the submarine photoelectric composite cable.
5. The undersea optical-electrical composite cable of claim 4, wherein: the optical fiber unit comprises an optical fiber tube and a first protective layer, the first protective layer is coated outside the optical fiber tube, and the heat insulation layer is coated outside the first protective layer.
6. The undersea photoelectric composite cable of claim 5, wherein the optical fiber tube comprises an optical fiber, water-blocking ointment and a stainless steel tube, the optical fiber is installed in the stainless steel tube, and the water-blocking ointment is filled in the stainless steel tube.
7. The undersea optical-electrical composite cable of claim 1, wherein: the conductor assembly further comprises an insulating layer, and the insulating layer is wrapped outside the conductor.
8. The undersea optical-electrical composite cable of claim 1, wherein the armor comprises strength members stranded outside the jacket to form an armor structure.
9. The undersea optical-electrical composite cable of claim 8, wherein: the number of the armor structure layers is 1-6.
10. The undersea optical-electrical composite cable of claim 9, wherein: and water-blocking asphalt is filled in the gap of the armor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330396.0U CN210052553U (en) | 2019-08-15 | 2019-08-15 | Seabed photoelectric composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921330396.0U CN210052553U (en) | 2019-08-15 | 2019-08-15 | Seabed photoelectric composite cable |
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| Publication Number | Publication Date |
|---|---|
| CN210052553U true CN210052553U (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921330396.0U Active CN210052553U (en) | 2019-08-15 | 2019-08-15 | Seabed photoelectric composite cable |
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| Country | Link |
|---|---|
| CN (1) | CN210052553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021027220A1 (en) * | 2019-08-15 | 2021-02-18 | 中天科技海缆股份有限公司 | Submarine photoelectric composite cable |
-
2019
- 2019-08-15 CN CN201921330396.0U patent/CN210052553U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021027220A1 (en) * | 2019-08-15 | 2021-02-18 | 中天科技海缆股份有限公司 | Submarine photoelectric composite cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200902 Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee after: ZHONGTIAN TECHNOLOGIES SUBMARINE CABLE Co.,Ltd. Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Co-patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. Patentee before: ZHONGTIAN TECHNOLOGIES SUBMARINE CABLE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee after: Zhongtian Technology submarine cable Co.,Ltd. Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee before: ZHONGTIAN TECHNOLOGIES SUBMARINE CABLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Submarine photoelectric composite cable Effective date of registration: 20220613 Granted publication date: 20200211 Pledgee: Rudong sub branch of Bank of China Ltd. Pledgor: Zhongtian Technology submarine cable Co.,Ltd. Registration number: Y2022320000270 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |