CN210270296U - Large-capacity low-resistance ocean-crossing trunked submarine optical cable - Google Patents
Large-capacity low-resistance ocean-crossing trunked submarine optical cable Download PDFInfo
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- CN210270296U CN210270296U CN201921053283.0U CN201921053283U CN210270296U CN 210270296 U CN210270296 U CN 210270296U CN 201921053283 U CN201921053283 U CN 201921053283U CN 210270296 U CN210270296 U CN 210270296U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 53
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000003292 glue Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- 239000013307 optical fiber Substances 0.000 claims description 24
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 238000003466 welding Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims 1
- 230000017105 transposition Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 3
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- 238000013461 design Methods 0.000 description 14
- 238000001125 extrusion Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
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- 238000004891 communication Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000004224 protection Effects 0.000 description 4
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- 239000004020 conductor Substances 0.000 description 3
- 230000006750 UV protection Effects 0.000 description 2
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- 230000001070 adhesive effect Effects 0.000 description 2
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- 239000013535 sea water Substances 0.000 description 2
- 238000004148 unit process Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a large capacity low resistance transoceanic has relay submarine optical cable, include from interior to exterior cable core, armor and the sheath that corresponds the setting in proper order, the cable core includes inside optic fibre and outside stainless steel pipe optical unit, optic fibre is provided with many and sets up in the intraductal of stainless steel pipe optical unit through fine cream packing, the armor is formed by first wire unit, second wire unit and third wire unit transposition, the transposition gap intussuseption of armor is filled with and is provided with the glue that blocks water. The utility model discloses guarantee large capacity transmission demand, guarantee that the product obtains the minimum direct current resistance demand of 0.6 omega/km @20 ℃, insulating properties is excellent, guarantees the feasibility of big length relay, optimizes the fracture load, the short-term tensile load of this product, guarantees laying and retrieving of submarine optical cable at the biggest 8000m water depth; the water resistance of the submarine optical cable is ensured, and the maintenance difficulty and cost are reduced; has excellent impact resistance and flattening resistance.
Description
Technical Field
The utility model relates to a large capacity low resistance transoceanic has relay submarine optical cable.
Background
More than 90% of the global international data is transmitted via submarine optical cable transmission systems, which are therefore the most important information carriers for modern global information communication.
On the other hand, with the rapid development of the ICT industries such as cloud computing, internet of things, big data, mobile internet and the like, the demands of all global parties on connection are continuously increased. In the process of full connection with a better trend, the role played by the submarine optical cable transmission system is more and more important, becomes the foundation of national economic development, and is valued by the government and the investors.
As a main carrier for transoceanic communications, there is a trunked undersea optical cable playing the most important role in the submarine cable family. At this stage, the global total demand exceeds 5 kilometres/year. With the rapid increase of communication requirements, the design requirements of the submarine optical cable system tend to be large capacity, large core number, longer relay distance, low delay, high safety, intellectualization and the like.
The conventional submarine optical cable design and manufacture at present is divided into a structural design of longitudinally wrapping a copper strip outside an optical unit and adding an outer sheath, and a design of welding the copper strip by argon arc welding and extruding and insulating after sheathing a high-strength phosphatized steel wire outside the optical unit, but the maximum optical fiber capacity is only 16 cores, and the direct current resistance is less than or equal to 1.0 omega/km.
The submarine optical cable in service at the present stage cannot meet the future development demand, and the main defects are as follows:
1. communication capacity: the capacity of the optical fiber of the existing relay submarine optical cable is below 16 cores, so that the requirement of the existing relay submarine optical cable with large core number in the future cannot be met;
2. relay distance: the method is limited by the design of the optical fiber attenuation (less than or equal to 0.180dB/km), the direct current resistance (1.0 omega/km) and the working voltage (10kV) of the current submarine optical cable, the current submarine optical cable with the relay needs to be relayed once every 100km, the relay distance is increased in the future development direction, and the number of the system relays is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a guarantee large capacity transmission demand, guarantee that the product obtains the direct current resistance demand of minimum 0.6 omega/km @20 ℃, insulating properties is excellent, guarantees the feasibility of big length relay, optimizes the fracture load, the short time tensile load of this product, guarantees laying and retrieving of submarine optical cable at the biggest 8000m water depth; the water resistance of the submarine optical cable is ensured, and the maintenance difficulty and cost are reduced; the high-capacity low-resistance transoceanic submarine optical cable with excellent impact resistance and crush resistance.
The technical scheme of the utility model is, a large capacity low resistance transoceanic has relay submarine optical cable is provided, including cable core, armor and sheath, cable core, armor and sheath correspond the setting in proper order from inside to outside, the cable core includes inside optic fibre and outside stainless steel pipe optical unit, optic fibre is provided with many and sets up in the intraductal of stainless steel pipe optical unit through fine cream packing, the armor is formed by first wire unit, second wire unit and third wire unit transposition, the packing is provided with the water blocking glue in the transposition gap of armor.
In a preferred embodiment of the present invention, the first metal wire unit, the second metal wire unit and the third metal wire unit are high-strength phosphated steel wires or copper wires.
In a preferred embodiment of the present invention, the armor layer is formed by twisting the first wire unit, the second wire unit and the third wire unit to form a double-layer armor, and then welding and fixing the double-layer armor by argon arc welding.
In a preferred embodiment of the invention, the copper tube is externally extruded with a high performance polyethylene insulation layer to form a sheath.
In a preferred embodiment of the present invention, the cable core can accommodate a 96-core large effective cross-section G654 optical fiber at maximum.
In a preferred embodiment of the invention, the armouring layer has a dc resistance of at least 0.6 Ω/km @20 ℃.
In a preferred embodiment of the present invention, the water-blocking adhesive is a two-component material of isocyanate and polyol.
The technical scheme of the utility model a still provide a large capacity low resistance transoceanic forming process who has relay submarine optical cable, include following step:
1) by a laser welding stainless steel tube light unit process mode, the paying-off tension of an optical fiber is controlled to be 50-100G, the fiber paste filling rate is controlled to be more than 80%, the excess length of the optical fiber is controlled to be 0.5-4 per thousand, and finally, the tube manufacturing of the multi-core G654 optical fiber and the large-length (the length of a section is more than or equal to 100 km) is realized under the condition of ensuring the excess length of the optical fiber, the control of the filling rate and the control of additional attenuation;
2) forming a stainless steel tube light unit armor layer by double-layer stranding of three different-diameter stranded metal wires (a first metal wire unit, a second metal wire unit and a third metal wire unit), improving the duty ratio of the metal wire units in the whole structure, controlling the paying-off tension of the metal wires to be 5-20kg and controlling the armor stranding pitch to be 10-30 times of the armor outer diameter in the manufacturing process;
3) selecting a copper strip with the thickness of 0.2-0.8mm outside an armor structure, forming a composite conductor of a stainless steel tube optical unit/armor layer/copper tube structure in a drawing forming mode after argon arc welding, controlling the drawing amount of the copper tube to be 10-30% in the argon arc welding drawing forming process, ensuring that the copper tube can be embedded into a metal armor layer, increasing the adhesive force between the copper tube and the armor layer, and finally realizing a large-length (a section length being more than or equal to 100 km) large-capacity low-resistance ocean-crossing relay submarine cable under the condition of keeping the welding stability of the copper tube;
4) through a co-extrusion process, respectively extruding a bonding material and an insulating material in sequence outside a copper pipe by insulating extrusion molding manufacturing, controlling the thickness of the bonding material to be 0.05-0.4mm, the thickness of the insulating wall to be more than or equal to 3.0mm, and the extrusion molding speed to be 5-50m/min, and realizing a large-length (more than or equal to 100km section length) large-capacity low-resistance transoceanic sea cable under the condition of keeping the stability of the insulating extrusion molding;
the control of the additional attenuation of the cabling is less than or equal to 0.05dB/km @1550 nm.
The utility model relates to a high capacity low resistance transoceanic has relay submarine optical cable, the utility model discloses guarantee the large capacity transmission demand, guarantee that the product obtains the direct current resistance demand of minimum 0.6 omega/km @20 ℃, insulating properties is excellent, guarantees the feasibility of big length relay, optimizes the fracture load of this product, short time tensile load, guarantees laying and retrieving of submarine optical cable at 8000m water depth at the maximum; the water resistance of the submarine optical cable is ensured, and the maintenance difficulty and cost are reduced; has excellent impact resistance and flattening resistance.
Drawings
Fig. 1 is a schematic cross-sectional view of a preferred embodiment of a high capacity, low resistance transoceanic trunked undersea optical cable of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make more clear and definite definitions of the scope of the present invention.
For a large capacity low resistance transoceanic has relay submarine optical cable, as shown in fig. 1, include from inside to outside and correspond in proper order and set up cable core, nonrust steel pipe optical unit 1, armor and sheath 2.
The optical fibers 3 are provided with a plurality of optical fibers and filled in the stainless steel tube optical unit 1 through the fiber paste 4 to form a cable core, the diameter of the stainless steel tube optical unit 1 is designed to be 3.0mm to 5.0mm, the wall thickness is designed to be 0.2mm to 0.3mm, and the cable core can be ensured to be capable of accommodating 96-core large-effective-section G654 optical fibers (compatible with conventional optical fiber types such as G652D and the like) to the maximum extent; meanwhile, the filling rate of the fiber paste 4 is controlled to be more than or equal to 90 percent, so that the water resistance of the stainless steel tube optical unit 1 under the condition of 83Mpa can be ensured.
The armor is formed by first wire unit 5, second wire unit 6 and the transposition of third wire unit 7, and first wire unit 5, second wire unit 6 and third wire unit 7 can be selected for high strength phosphating steel wire or copper wire respectively according to the performance demand.
In this embodiment, the armor includes the first high strength bonderizing steel wire 5 of inboard transposition and the second high strength bonderizing steel wire 6 and the copper wire 7 of outside transposition, and at 8 argon arc welding welded fastening of copper pipe longitudinal wrapping in the outside, guarantee product structural stability, the use of copper wire 7 is for forming composite conductor, in order to obtain the direct current resistance demand of design demand, can satisfy 0.6 omega/km's direct current resistance minimum, first high strength bonderizing steel wire 5, the intertwist gap intussuseption of second high strength bonderizing steel wire 6 and copper wire 7 is provided with water-blocking glue 9, water-blocking glue 9 adopts the bi-component material of isocyanate and polyol, in order to guarantee armor clearance water-blocking performance, high strength bonderizing steel wire is as the reinforcing steel wire of armor, can guarantee that the fracture load power value of this product is greater than or equal to 80kN, guarantee that the product can satisfy.
The sheath 2 is made of a polyethylene insulating layer with UV resistance, wear resistance, environmental cracking resistance and the like, the wall thickness of the insulating layer is controlled to be more than or equal to 3mm, and the product is guaranteed to meet the service life of 25 years under the condition of the maximum working voltage of 20 kV.
The processing technology comprises the following steps:
by a laser welding stainless steel tube light unit process mode, the paying-off tension of an optical fiber is controlled to be 50-100G, the fiber paste filling rate is controlled to be more than 80%, the excess length of the optical fiber is controlled to be 0.5-4 per thousand, and finally, the tube manufacturing of the multi-core G654 optical fiber and the large-length (the length of a section is more than or equal to 100 km) is realized under the condition of ensuring the excess length of the optical fiber, the control of the filling rate and the control of additional attenuation;
forming a stainless steel tube light unit armor layer by double-layer stranding of three different-diameter stranded metal wires (a first metal wire unit, a second metal wire unit and a third metal wire unit), improving the duty ratio of the metal wire units in the whole structure, controlling the paying-off tension of the metal wires to be 5-20kg and controlling the armor stranding pitch to be 10-30 times of the armor outer diameter in the manufacturing process;
according to the structural design and the model selection requirement, a copper strip with the thickness of 0.2-0.8mm is selected outside an armor structure, a composite conductor of a stainless steel tube optical unit/armor layer/copper tube structure is formed in a drawing forming mode after argon arc welding, in the argon arc welding drawing forming process, the drawing amount of the copper tube is controlled to be 10-30%, the copper tube can be embedded into a metal armor layer, the adhesion force between the copper tube and the armor layer is increased, and finally, the ocean-crossing relay submarine cable with large length (more than or equal to 100km section length) and large capacity and low resistance is realized under the condition that the welding stability of the copper tube is kept;
through a co-extrusion process, sequentially and respectively extruding a bonding material and an insulating material on the outer side of a copper pipe, controlling the thickness of the bonding material to be 0.05-0.4mm, the thickness of the insulating wall to be more than or equal to 3.0mm, and controlling the extrusion speed to be 5-50m/min, so that the large-length (more than or equal to 100km section length) large-capacity low-resistance transoceanic cable is realized under the condition of keeping the stability of the insulating extrusion, and the insulating extrusion is manufactured;
the control of the additional attenuation of the cabling is less than or equal to 0.05dB/km @1550 nm.
This structure ensures the stability of this product structure compactness to satisfy submarine optical cable anti-impact and anti-collapsing's demand.
For a large capacity low resistance transoceanic has relay submarine optical cable, the utility model discloses possess following advantage:
1. the structural design of the central tube type trunked submarine optical cable is selected, a 96-core large-effective-section G654 optical fiber (compatible with conventional G652D and other optical fiber types) can be accommodated to the maximum extent, and the high-capacity transmission requirement is ensured;
2. and (3) designing a low-resistance structure: designing and selecting a structure for longitudinally wrapping a copper pipe by argon arc welding after high-strength phosphated steel wires and a third metal wire unit are jointly armored, ensuring that the product can obtain the direct current resistance requirement of 0.6 omega/km @20 ℃ at the minimum, and ensuring the feasibility of a relay with large length;
3. mechanical properties & application of the design of the recovered water depth: through the structural design of the high-strength phosphatized steel wire, the fracture load and the transient tensile load of the product are optimized, and meanwhile, the design of filling a high-performance water-blocking material ensures that the water-blocking performance of the submarine optical cable is ensured while the maximum application water depth of the product is 8000 m; the submarine optical cable is guaranteed to be broken in the using process, the length of seawater infiltration is shortened as far as possible, and the maintenance difficulty and cost are reduced;
4. insulation design: the polyethylene insulating layer with the performances of UV resistance, wear resistance, environmental cracking resistance and the like is designed and selected, the insulating resistance of the product is improved to be more than 100G omega-km, and the long-term working voltage is up to 20 kV;
5. mechanical structure stability and water pressure resistant structural design: through the structural design that a copper strip is welded and high-performance polyethylene is extruded after a stainless steel pipe optical unit is externally armored with a high-strength phosphating steel wire and a third metal wire unit, the structural stability of the product is ensured, the product is ensured to have excellent shock resistance and pressure flat resistance, and the requirement of bearing the maximum hydrostatic pressure of 83Mpa under the sea water depth condition of 8000m can be met;
6. the process realizes stability: under the condition of ensuring the extra length of the optical fiber, the control of filling rate and the additional attenuation control, the multi-core G654 optical fiber and large-length (not less than 100km section length) pipe making are realized; under the condition of keeping the welding stability of the copper pipe, the ocean-crossing submarine cable with large length (more than or equal to 100km section length), large capacity and low resistance is manufactured by armored argon arc welding; under the condition of keeping the stability of insulation extrusion molding, the ocean-crossing submarine cable with large length (more than or equal to 100km section length), large capacity and low resistance is realized, and the insulation extrusion molding is carried out.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions thought by the inventive work within the technical scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (7)
1. The utility model provides a large capacity low resistance transoceanic has relay submarine optical cable, includes cable core, armor and sheath, its characterized in that: the cable core, the armor and the sheath are sequentially and correspondingly arranged from inside to outside, the cable core comprises internal optical fibers and external stainless steel tube optical units, the optical fibers are provided with a plurality of optical fibers and are filled in the stainless steel tube optical units through fiber paste, the armor is formed by twisting a first metal wire unit, a second metal wire unit and a third metal wire unit, and a water blocking glue is filled in a twisting gap of the armor.
2. The high capacity low resistance transoceanic trunked undersea optical cable of claim 1, wherein: the first metal wire unit, the second metal wire unit and the third metal wire unit are high-strength phosphated steel wires or copper wires.
3. The high capacity low resistance transoceanic trunked undersea optical cable of claim 1, wherein: the armor layer is formed by twisting a first metal wire unit, a second metal wire unit and a third metal wire unit to form double armor, and then the double armor is longitudinally wrapped with a copper pipe and welded and fixed through argon arc welding.
4. The high capacity low resistance transoceanic trunked undersea optical cable of claim 3, wherein: and the high-performance polyethylene insulating layer is extruded outside the copper pipe to form a sheath.
5. The high capacity low resistance transoceanic trunked undersea optical cable of claim 1, wherein: the cable core can accommodate 96-core large effective cross section G654 optical fiber at most.
6. The high capacity low resistance transoceanic trunked undersea optical cable of claim 1, wherein: the armor has a DC resistance of at least 0.6 Ω/km @20 ℃.
7. The high capacity low resistance transoceanic trunked undersea optical cable of claim 1, wherein: the water-blocking glue adopts a bi-component material of isocyanate and polyalcohol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921053283.0U CN210270296U (en) | 2019-07-08 | 2019-07-08 | Large-capacity low-resistance ocean-crossing trunked submarine optical cable |
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| CN201921053283.0U CN210270296U (en) | 2019-07-08 | 2019-07-08 | Large-capacity low-resistance ocean-crossing trunked submarine optical cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426798A (en) * | 2019-07-08 | 2019-11-08 | 江苏亨通海洋光网系统有限公司 | A kind of large capacity low resistance transoceanically has relaying submarine optical fiber cable |
| CN111679383A (en) * | 2020-05-20 | 2020-09-18 | 中航宝胜海洋工程电缆有限公司 | High-strength side pressure-resistant and impact-resistant submarine optical cable core and preparation method thereof |
| CN115014727A (en) * | 2022-07-20 | 2022-09-06 | 江苏亨通海洋光网系统有限公司 | Submarine optical cable torsional rigidity test device |
-
2019
- 2019-07-08 CN CN201921053283.0U patent/CN210270296U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426798A (en) * | 2019-07-08 | 2019-11-08 | 江苏亨通海洋光网系统有限公司 | A kind of large capacity low resistance transoceanically has relaying submarine optical fiber cable |
| CN111679383A (en) * | 2020-05-20 | 2020-09-18 | 中航宝胜海洋工程电缆有限公司 | High-strength side pressure-resistant and impact-resistant submarine optical cable core and preparation method thereof |
| CN115014727A (en) * | 2022-07-20 | 2022-09-06 | 江苏亨通海洋光网系统有限公司 | Submarine optical cable torsional rigidity test device |
| CN115014727B (en) * | 2022-07-20 | 2023-12-15 | 江苏亨通海洋光网系统有限公司 | Submarine optical cable torsional rigidity test device |
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Address after: 215500 Building 2, No.8, Tongda Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Jiangsu Hengtong Huahai Technology Co.,Ltd. Country or region after: China Address before: 215500 Building 2, No.8, Tongda Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU HENGTONG MARINE CABLE SYSTEMS Co.,Ltd. Country or region before: China |
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