CN111474651A - 500-core and above-core multi-layer stranded unrepeatered submarine optical cable - Google Patents
500-core and above-core multi-layer stranded unrepeatered submarine optical cable Download PDFInfo
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- CN111474651A CN111474651A CN202010409950.5A CN202010409950A CN111474651A CN 111474651 A CN111474651 A CN 111474651A CN 202010409950 A CN202010409950 A CN 202010409950A CN 111474651 A CN111474651 A CN 111474651A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 59
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 42
- 239000010935 stainless steel Substances 0.000 claims abstract description 42
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 19
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 19
- 230000002787 reinforcement Effects 0.000 claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 239000001257 hydrogen Substances 0.000 claims abstract description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 54
- 230000017105 transposition Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000004891 communication Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000006071 cream Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
Abstract
The invention discloses a 500-core and above-core multi-layer stranded unrepeatered submarine optical cable which comprises a first central reinforcement, a subunit, a first water-blocking tape, a first HDPE sheath, an armor layer and a pp rope, wherein the first central reinforcement, the subunit, the first water-blocking tape, the first HDPE sheath, the armor layer and the pp rope are sequentially and correspondingly arranged from inside to outside, the subunit comprises a second central reinforcement, a stainless steel optical unit, a second water-blocking tape, a filling color bar and a second HDPE sheath, the stainless steel optical unit comprises a stainless steel pipe, an internal optical fiber and saturated and filled hydrogen absorption fiber paste, the stainless steel optical unit is provided with a plurality of parallel layer strands arranged outside the second central reinforcement, and the subunit is provided with a plurality of parallel layer strands arranged outside the first central reinforcement. The invention breaks through the limitation of the number of the cores of the domestic layer hank; the risk of only layer stranding of the stainless steel optical unit in China is greatly reduced; the high-capacity communication requirement of the user is broken through; the standard stainless steel tube optical unit size structure inside each enterprise can be adopted, the production cost is greatly reduced, and the production and processing efficiency is improved.
Description
Technical Field
The invention relates to a 500-core and above-core multi-layer stranded unrepeatered submarine optical cable.
Background
The traditional unrepeatered submarine optical cable generally adopts a central tube type stainless steel optical unit, an outer layer extruded PE sheath provides wear-resistant and insulation protection for the optical unit, and one or more layers of armored steel wires are stranded on the outer layer according to the use environment requirement of the cable, but the traditional unrepeatered submarine optical cable is limited by the size and the mechanical property of a stainless steel tube, and the number of optical fiber cores can only accommodate 96 cores at most at present.
The traditional layer-stranded submarine steel cable generally adopts the mode of optical unit layer-stranding to realize the large core number of the submarine optical cable so as to meet the requirements of optical fibers with hundreds of cores and above.
With the development of economy and social progress, especially the coming of the 5G network era, the demand for optical cable communication signal throughput is increasing at home and abroad, especially when the optical cable is applied to certain special fields such as oil and gas platforms, water transfer engineering projects and the like, optical cables with multiple channels and multiple cores are needed, and according to earlier research, the submarine optical cable with 500 cores or more at home is still blank.
The prior art has the following defects:
(1) the maximum core number of the central tube type submarine optical cable can only meet 96 cores, if the requirement of a submarine optical cable with more than one hundred cores needs to be met, the central tube needs to be large enough, but for a large-diameter central tube, the mechanical performance index of the central tube is obviously reduced, and particularly the impact resistance and the crush resistance of the central tube are obvious;
(2) the large-size central tube has an overlarge diameter and a thin wall thickness in the production process, so that the central tube is easy to deform in the production process, and the subsequent process production and the roundness of a cable form are greatly hindered;
(3) the large-size central tube is a special requirement project at present, so that the standardization of the central tube size of an enterprise and the realization of the industrial production of products are extremely disadvantageous;
(4) the traditional layer-stranded submarine optical cable meets the requirement of large core number by adopting the layer-stranded mode of the optical unit, but for 500-core or more submarine optical cables, the layer number of layer-stranded layers breaks through 4 layers or even 5 layers, and the traditional submarine optical cable stranding equipment can not meet the requirement basically;
(5) in the traditional layer stranded submarine optical cable, the subunits are optical units, and the optical units are uniformly stranded to form a cable, so that the parallel operation of multiple wires cannot be realized, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide a method for adopting a hierarchical subunit layer stranding mode, which breaks through the core number limitation of the domestic layer stranding; the hierarchical sub-unit layer stranding mode is adopted, so that the manufacturing risk of only stainless steel optical unit layer stranding in China is greatly reduced; the high-capacity communication requirement of a user is broken through, and the cost control is obvious; the standard stainless steel pipe optical unit size structure inside each enterprise can be adopted, a new optical unit structure does not need to be independently developed, the production cost is greatly reduced, and the production and processing efficiency is improved, so that the 500-core and above-core multi-layer stranded unrepeatered submarine optical cable is provided.
The technical scheme of the invention is that the stranded non-relay submarine optical cable with 500 cores and a plurality of layers of above cores comprises a first central reinforcement, a subunit, a first water-blocking tape, a first HDPE sheath, an armor layer and a pp rope which are correspondingly arranged from inside to outside in sequence, wherein the subunit comprises a second central reinforcement, a stainless steel optical unit, a second water-blocking tape, filling color strips and a second HDPE sheath, the stainless steel optical unit comprises a stainless steel pipe, internal optical fibers and saturated and filled hydrogen absorption fiber paste, the stainless steel optical unit is provided with a plurality of parallel layer strands and is arranged outside the second central reinforcement, the stainless steel pipe unit is provided with the second water-blocking tape outside, the first water-blocking glue is filled in the stranding gap of the stainless steel optical unit, 2 filling color strips are stranded in the stranding gap of the stainless steel optical unit, and the second HDPE sheath is arranged outside the second water-blocking tape, the subunit is provided with a plurality of parallel layer twists arranged outside the first central reinforcement.
In a preferred embodiment of the present invention, a layer of first water-blocking tape is wrapped around the outside of the subunit, and a second water-blocking glue is filled in the twisting gap of the subunit.
In a preferred embodiment of the present invention, conductive copper wires are twisted in the twisting gaps of the subunits.
In a preferred embodiment of the invention, the first water-blocking tape is externally extruded with a first HDPE sheath.
In a preferred embodiment of the invention, the first HDPE sheathing is provided with a single layer of armor layer stranded by outer armor steel wires.
In a preferred embodiment of the invention, the armor is externally stranded and tightly hooped by two layers of PP ropes and is mixed with asphalt.
The invention relates to a 500-core and above-core multi-layer stranded unrepeatered submarine optical cable, which has the following advantages:
1. the hierarchical subunit layer twisting mode is adopted, and the core number limitation of domestic layer twisting is broken through;
2. the hierarchical sub-unit layer stranding mode is adopted, so that the manufacturing risk of only stainless steel optical unit layer stranding in China is greatly reduced;
3. the high-capacity communication requirement of a user is broken through, and the cost control is obvious;
4. the stainless steel tube optical unit size structure of the internal standard of each enterprise can be adopted, a new optical unit structure does not need to be developed independently, the production cost is greatly reduced, and the production and processing efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of a 500-core and above-core multi-layer stranded unrepeatered submarine optical cable according to the present invention;
fig. 2 is a schematic structural diagram of the subunit of fig. 1.
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 readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
The invention relates to a 500-core and above-core multi-layer stranded unrepeatered submarine optical cable, which comprises a first central reinforcement 1, a subunit 2, a first water-blocking tape 3, a first HDPE sheath 4, an armor layer 5 and a pp rope 6 which are correspondingly arranged from inside to outside in sequence as shown in figure 1 and figure 2.
Wherein the subunit 2 comprises a second central reinforcement 21, a stainless steel light unit, a second water blocking tape 22, a filling colour bar 23 and a second HDPE jacket 24.
Stainless steel light unit includes stainless steel pipe 25 and inside optic fibre 26 and the fine cream 27 of hydrogen of inhaling of saturation packing, stainless steel light unit is provided with a plurality ofly and sets up in second center reinforcement 21 outsidely in the layer hank, be 6 stainless steel light units in the example, can carry out the change of different quantity as required, with the requirement of the 26 core numbers of matching optic fibre, inhale the fine cream 27 of hydrogen and fill through the saturation, not only can play radial effect of blocking water, buffer optical fibre 26's atress, also can absorb the hydrogen of external infiltration simultaneously, thereby reduce and avoid the hydrogen loss of optic fibre 26. The optical fiber 26 is colored by a standard color card and is colored and looped to match the capacity requirement of the optical fiber 26, and the stainless steel optical unit realizes the elastic-plastic deformation of the stainless steel tube 25 by a precise two-step drawing process, so that the optical fiber 26 forms a uniform extra length in the stainless steel optical unit after the deformation is released.
The stainless steel pipe unit 22 is provided with a second water-blocking tape 22 outside and a first water-blocking glue 28 is filled in the twisted gap of the stainless steel optical unit to realize the omnibearing water blocking of the subunit 2.
Still the transposition is provided with 2 and fills the color bar 23 in the transposition clearance of stainless steel light unit for distinguish the position of optic fibre, be convenient for subsequent optical fiber butt fusion and the maintenance of finished cable.
And a second HDPE sheath 24 is arranged outside the second water-blocking tape 22 in an extrusion molding mode, so that the water-blocking performance is more excellent.
Subunit 2 is provided with a plurality of layers and twists and set up in first central reinforcement 1 outsidely, and the center adopts first central reinforcement 1 to strengthen, promotes the intensity of finished cable to also regard as the filling layer of outside subunit 2 transposition.
A layer of first water-blocking tape 3 is wrapped outside the subunit 2, and a second water-blocking glue 7 is filled in the twisted gap of the subunit 2, so that all-dimensional water blocking of the finished cable is realized.
The conductive copper wires 8 are arranged in the twisting gaps of the subunits 2 in a twisting mode, broken cable detection is mainly achieved, follow-up cable fault positions can be monitored conveniently, and maintenance is facilitated.
3 outside extrusion moldings of first water-blocking tape are provided with first HDPE sheath 4, promote the mechanical properties of shock resistance and flattening of finished product cable type, simultaneously, have also realized radially blocking water of finished product cable, and first HDPE sheath adopts different colours to distinguish to be convenient for distinguish the position of molecule unit 2, thereby be convenient for the maintenance of follow-up finished product cable.
A single-layer armor layer 5 formed by twisting anticorrosive outer armor steel wires is arranged outside the first HDPE jacket 4, and the mechanical strength of the finished cable is improved.
The armor 5 is externally twisted by two layers of PP ropes 6, tightly hooped and mixedly provided with asphalt 9, so that the round shaping and the stability of the finished cable are improved, and the impact resistance and the flattening performance of the finished cable are also improved.
Through this kind of mode, adopt the mode of subunit 2 transposition, the cable type of finished product cable can realize 500~1000 cores and even bigger core number market demand.
In the twisting process, through reasonable pitch matching and tension control of the take-up and pay-off wires, the consistency and uniformity of the twisting pitch are ensured, and the reliability of the stainless steel optical unit and the sub-unit in twisting is ensured.
Through the stranded subunit that forms of stainless steel light unit, the rethread subunit twists and forms finished product cable, adopts one step of iterative mode, realizes the stranding of super large core number submarine optical cable, compares the mode of traditional light unit multilayer transposition, and the subunit of finished product cable bears intensity bigger, and this is to the transposition of stranding time, risk greatly reduced.
The invention relates to a 500-core and above-core multi-layer stranded unrepeatered submarine optical cable, which has the following advantages:
1. the hierarchical subunit layer twisting mode is adopted, and the core number limitation of domestic layer twisting is broken through;
2. the hierarchical sub-unit layer stranding mode is adopted, so that the manufacturing risk of only stainless steel optical unit layer stranding in China is greatly reduced;
3. the high-capacity communication requirement of a user is broken through, and the cost control is obvious;
4. the stainless steel tube optical unit size structure of the internal standard of each enterprise can be adopted, a new optical unit structure does not need to be developed independently, the production cost is greatly reduced, and the production and processing efficiency is improved.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be made by those skilled in the art without inventive work within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a 500 core and above core several layers of hank formula no relay submarine optical cable which characterized in that: comprises a first central reinforcement, a subunit, a first water-blocking tape, a first HDPE sheath, an armor layer and a pp rope which are correspondingly arranged from inside to outside in sequence, the subunit comprises a second central reinforcement, a stainless steel light unit, a second water blocking tape, a filling color bar and a second HDPE jacket, the stainless steel light unit comprises a stainless steel tube, an optical fiber inside the stainless steel tube and hydrogen absorption fiber paste filled in a saturated mode, the stainless steel light unit is provided with a plurality of parallel layers and is arranged outside the second central reinforcement, the stainless steel pipe unit is provided with a second water-blocking tape outside and a first water-blocking glue is filled in a twisting gap of the stainless steel light unit, still the transposition is provided with 2 and fills the colour bar in the transposition clearance of stainless steel light unit, the outside extrusion molding of second waterstop is provided with second HDPE sheath, the subunit is provided with a plurality of layers and twists and set up in first central reinforcement outside.
2. The 500-core and above-core multi-layer stranded unrepeatered submarine optical cable according to claim 1, wherein: and a layer of first water-blocking tape is wound outside the subunit, and a second water-blocking glue is filled in the twisting gap of the subunit.
3. The 500-core and above-core multi-layer stranded unrepeatered submarine optical cable according to claim 1, wherein: and conductive copper wires are arranged in the twisting gaps of the subunits in a twisting manner in a twisting mode.
4. The 500-core and above-core multi-layer stranded unrepeatered submarine optical cable according to claim 1, wherein: and a first HDPE sheath is arranged outside the first water blocking tape in an extrusion molding mode.
5. The 500-core and above-core multi-layer stranded unrepeatered submarine optical cable according to claim 1, wherein: and a single-layer armor layer formed by twisting outer armor steel wires is arranged outside the first HDPE jacket.
6. The 500-core and above-core multi-layer stranded unrepeatered submarine optical cable according to claim 1, wherein: and the exterior of the armor layer is tightly hooped by two layers of PP ropes in a stranding way and is provided with asphalt in a mixing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010409950.5A CN111474651A (en) | 2020-05-15 | 2020-05-15 | 500-core and above-core multi-layer stranded unrepeatered submarine optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010409950.5A CN111474651A (en) | 2020-05-15 | 2020-05-15 | 500-core and above-core multi-layer stranded unrepeatered submarine optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111474651A true CN111474651A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010409950.5A Pending CN111474651A (en) | 2020-05-15 | 2020-05-15 | 500-core and above-core multi-layer stranded unrepeatered submarine optical cable |
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| Country | Link |
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| CN (1) | CN111474651A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913261A (en) * | 2020-08-26 | 2020-11-10 | 江苏亨通海洋光网系统有限公司 | Sea optical cable with optical unit longitudinally-wrapped copper strip structure and preparation method thereof |
| CN112114409A (en) * | 2020-10-30 | 2020-12-22 | 江苏亨通海洋光网系统有限公司 | Light high-strength submarine optical cable |
| CN116027503A (en) * | 2023-01-31 | 2023-04-28 | 合肥兴联通讯有限公司 | Underwater application branch optical cable supporting electric energy transmission function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067746A (en) * | 1991-06-03 | 1993-01-06 | 住友电气工业株式会社 | Optical cable |
| CN101840042A (en) * | 2010-05-18 | 2010-09-22 | 江苏通鼎光电股份有限公司 | Full-dry high count armour indoor and outdoor optical cable |
| CN201689204U (en) * | 2010-06-04 | 2010-12-29 | 长飞光纤光缆有限公司 | Composite layer twisted type optic cable |
| CN106772845A (en) * | 2016-11-28 | 2017-05-31 | 江苏通光海洋光电科技有限公司 | A kind of heavy in section submarine optical fiber cable |
| CN207488585U (en) * | 2017-12-05 | 2018-06-12 | 德阳汇川科技有限公司 | A kind of stainless steel tube layer-stranding cable |
-
2020
- 2020-05-15 CN CN202010409950.5A patent/CN111474651A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067746A (en) * | 1991-06-03 | 1993-01-06 | 住友电气工业株式会社 | Optical cable |
| CN101840042A (en) * | 2010-05-18 | 2010-09-22 | 江苏通鼎光电股份有限公司 | Full-dry high count armour indoor and outdoor optical cable |
| CN201689204U (en) * | 2010-06-04 | 2010-12-29 | 长飞光纤光缆有限公司 | Composite layer twisted type optic cable |
| CN106772845A (en) * | 2016-11-28 | 2017-05-31 | 江苏通光海洋光电科技有限公司 | A kind of heavy in section submarine optical fiber cable |
| CN207488585U (en) * | 2017-12-05 | 2018-06-12 | 德阳汇川科技有限公司 | A kind of stainless steel tube layer-stranding cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913261A (en) * | 2020-08-26 | 2020-11-10 | 江苏亨通海洋光网系统有限公司 | Sea optical cable with optical unit longitudinally-wrapped copper strip structure and preparation method thereof |
| CN112114409A (en) * | 2020-10-30 | 2020-12-22 | 江苏亨通海洋光网系统有限公司 | Light high-strength submarine optical cable |
| CN116027503A (en) * | 2023-01-31 | 2023-04-28 | 合肥兴联通讯有限公司 | Underwater application branch optical cable supporting electric energy transmission function |
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Application publication date: 20200731 |