CN215986623U - Submarine optical cable - Google Patents
Submarine optical cable Download PDFInfo
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- CN215986623U CN215986623U CN202121596986.5U CN202121596986U CN215986623U CN 215986623 U CN215986623 U CN 215986623U CN 202121596986 U CN202121596986 U CN 202121596986U CN 215986623 U CN215986623 U CN 215986623U
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Abstract
The present invention provides an undersea optical cable comprising: the reinforced core is sequentially provided with a structural layer, an HDPE outer sheath layer and an armor layer from inside to outside along the outer side of the reinforced core; the utility model provides the submarine optical cable, which not only reduces the production cost of the submarine optical cable, but also improves the performance of the submarine optical cable, and meets the application requirements of large-scale submarine optical cables.
Description
Technical Field
The utility model relates to the technical field of optical cables, in particular to an optical submarine cable.
Background
Submarine fiber cable systems are the most important implementation for global data exchange. Submarine optical cables as ligaments are the most important carriers in marine communications. More than 95% of global international data are transmitted through the submarine optical cable, the development of marine economy is accelerated, and the submarine optical cable plays a very important role in advance of information. The traditional submarine optical cable has complex production process and high cost, and the investment on hardware facilities such as submarine cable equipment, ports and the like is large.
In addition, the key raw materials adopted by the traditional submarine optical cable are basically determined by foreign monopolies, for example, the double-component water-blocking glue, the Dow insulating material and the like are imported, under the condition that the prices of copper materials, steel materials, petroleum refined products and the like are greatly increased, the traditional submarine optical cable is high in price due to the fact that a copper pipe conductor, high-strength phosphating steel wire inner armor, an imported high-purity insulating material and an imported double-component water-blocking glue are used, equipment and raw materials are expensive, the production cost of the submarine optical cable is greatly increased, and the traditional submarine optical cable is large in unit weight and too large in bending radius, so that the submarine optical cable is poor in performance when being applied, and the requirement of large-scale submarine optical cable application cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the submarine optical cable, which not only reduces the production cost of the submarine optical cable, but also improves the performance of the submarine optical cable, and meets the application requirements of large-scale submarine optical cables.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
an undersea optical fiber cable comprising: the reinforced core is provided with a structural layer, an HDPE outer sheath layer and an armor layer from inside to outside along the outer side of the reinforced core in sequence.
The utility model provides the submarine optical cable, which not only reduces the production cost of the submarine optical cable, but also improves the performance of the submarine optical cable, and meets the application requirements of large-scale submarine optical cables.
As a preferred solution, the reinforcing core includes: the steel core is coated with an aluminum layer to form the reinforced core.
As a preferred technical solution, the structural layer includes: the aluminum alloy wire unit and the stainless steel tube light units are twisted on the outer side of the reinforced core.
The preferable technical scheme comprises the following steps: and the water blocking yarn is arranged at a gap between the aluminum alloy wire unit and the stainless steel tube light unit.
As the preferred technical scheme, an optical fiber and hydrogen absorption water-blocking fiber paste are arranged in each stainless steel tube optical unit.
As a preferred technical solution, the armor includes: the galvanized steel wire layers are spirally stranded and wound around the submarine cable PP rope.
As a preferable technical scheme, a water-resistant layer covers the gap of the galvanized steel wire layer.
As the preferred technical scheme, the steel core is of an integrally formed structure.
As a preferred technical scheme, the thickness of the HDPE outer sheath layer is 2.5-4.5 mm.
As a preferred technical scheme, the outer diameter of the aluminum alloy wire unit is 2.0-2.5 mm.
The utility model provides a submarine optical cable which has the following beneficial effects:
1) the utility model provides an optical submarine cable, 1700 core optical fiber submarine cables with installed fibers are easy to maintain;
2) the submarine optical cable provided by the utility model has the advantages that the cable core part is produced in an innovative production mode of the OPGW electric optical cable, special inner armor of the submarine cable and argon arc welding equipment are not needed, the equipment investment is low, and the requirement for rapid production is met;
3) the utility model provides a submarine optical cable, which is characterized in that a stainless steel tube optical unit is stranded in a layer-stranding mode innovatively, the structure extra length is increased by 0.3%, the tensile resistance and the high and low temperature performance of a common optical fiber are compensated, and the production cost is greatly reduced;
4) the utility model provides a submarine optical cable, wherein a cable core can be produced by adopting an SZ twisting (high speed) mode or a spiral twisting (low speed) mode, the SZ twisting (high speed) mode has low tension but high production speed, better pipe protection, low spiral twisting speed and higher tension strength, so that the performance of the cable core is improved;
5) according to the submarine optical cable, the gaps between the aluminum alloy wire units and the stainless steel tube optical units are filled with water-blocking yarns, so that the cost is reduced, the water seepage performance of the submarine optical cable is guaranteed, and the submarine optical cable is more environment-friendly;
6) according to the submarine optical cable, the sheath part is made of high-density polyethylene, the withstand voltage requirement of 6-12 KV can be met, an imported Dow insulating material is replaced, and the problem of high raw material cost is solved;
7) the utility model provides a submarine optical cable, which is characterized in that a cable core is produced by adopting the mode, compared with the traditional submarine optical cable, the production speed is doubled, the cost is reduced by about 30 percent, the submarine optical cable is suitable for laying depth of 50-600M, is suitable for being used in most sea areas in China, and is particularly suitable for the requirements of ocean development strategies in China.
Drawings
Fig. 1 is a structural view of an undersea optical fiber cable according to the present invention.
Wherein: 1-a reinforcing core; 11-a steel core; 12-a layer of aluminum; 2-structural layer; 21-aluminum alloy wire unit; 22-stainless steel tube light unit; 23-water blocking yarn; 3-HDPE outer jacket layer; 4-an armor layer; 41-galvanized steel wire layer; 42-submarine PP rope.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It is understood that the utility model achieves the objects of the utility model by means of some embodiments.
As shown in fig. 1, the present invention provides an undersea optical cable including: strengthen core 1, be equipped with structural layer 2, HDPE oversheath layer 3 and armor 4 from inside to outside along strengthening core 1 outside in proper order, the preferred high dense material polyethylene material of black of HDPE oversheath layer 3, the thickness of HDPE oversheath layer 3 is 2.5 ~ 4.5mm, the withstand voltage 6 ~ 12KV of HDPE oversheath layer 3, strengthen core 1 and include: the steel core 11, the steel core 11 is coated with aluminium layer 12 to constitute reinforced core 1, steel core 11 is the integrated into one piece structure, steel core 11's intensity is 1270 ~ 1470Mpa, the centre of steel core 11 is jointless, reinforced core 1 electric conductivity is 20 ~ 27%, structural layer 2 includes: the aluminum alloy wire unit 21 and the stainless steel tube optical units 22 are twisted outside the reinforced core 1, and preferably, the aluminum alloy wire unit 21 and the stainless steel tube optical units 22 can be twisted outside the aluminum-clad steel reinforced core 1 by using an SZ twisting method (high speed) or an OPGW spiral twisting method (low speed); the conductivity of the aluminum alloy wire unit 21 is more than 52.5%, the strength of the aluminum alloy wire unit 21 is 325-335 Mpa, the outer diameter of the aluminum alloy wire unit 21 is 2.0-2.5 mm, the number of the aluminum alloy wire units 21 is preferably 6-8, and the resistance of the aluminum alloy wire unit 21 is 0.5-1.2 omega/km; the stainless steel tube optical unit 22 is formed by longitudinally wrapping an SUS304 stainless steel band, performing laser welding, drawing and integrally forming, has high steel tube hardness and smooth and defect-free surface, and ensures that a welding line is firm and reliable by scanning of a turbine flaw detector, the water-blocking yarn 23 is arranged at a gap between the aluminum alloy wire unit 21 and the stainless steel tube optical unit 22, and the gap between the aluminum alloy wire unit 21 and the stainless steel tube optical unit 22 is filled by using a dry water-blocking yarn 23 mode, so that the cable weight is effectively reduced, and the cost is reduced; be equipped with optic fibre and inhale hydrogen fine cream that blocks water in every stainless steel optical unit 22 of pipe, the preferred ordinary G652D optic fibre of 6 ~ 24 cores of optic fibre, inhale hydrogen and block water fine cream preferred black and inhale hydrogen and block water fine cream, armor 4 includes: the marine cable comprises a plurality of galvanized steel wire layers 41, wherein the galvanized steel wire layers 41 are spirally stranded and wound around a sea cable PP rope 42, a water-blocking layer (not shown) covers gaps of the galvanized steel wire layers 41, and preferably, water is blocked at the gaps of the galvanized steel wire layers 41 in an asphalt coating mode.
The present invention provides an undersea optical cable comprising: the reinforced core 1 is provided with a structural layer 2, an HDPE outer sheath layer 3 and an armor layer 4 from inside to outside along the outer side of the reinforced core 1 in sequence.
The utility model provides the submarine optical cable, which not only reduces the production cost of the submarine optical cable, but also improves the performance of the submarine optical cable, and meets the application requirements of large-scale submarine optical cables.
In some embodiments, the reinforcing core 1 comprises: the steel core 11, the outside cladding of steel core 11 has aluminium layer 12 to constitute reinforced core 1.
In some embodiments, the structural layer 2 comprises: aluminum alloy line unit 21 and a plurality of stainless steel pipe light unit 22, aluminum alloy line unit 21 with stainless steel pipe light unit 22 strand in strengthen the outside of core 1.
In some embodiments, the method comprises: and the water blocking yarn 23 is arranged at a gap between the aluminum alloy wire unit 21 and the stainless steel tube light unit 22.
In some embodiments, each stainless steel tube light unit 22 is provided with an optical fiber and a hydrogen-absorbing and water-blocking paste.
In some embodiments, the armor 4 comprises: the marine cable comprises a plurality of galvanized steel wire layers 41, wherein the galvanized steel wire layers 41 are spirally twisted and wound around a PP rope 42.
In some embodiments, the interstices of the galvanized steel wire layer 41 are covered with a water resistant layer (not shown).
In some embodiments, the steel core 11 is of an integrally formed structure.
In some embodiments, the HDPE outer sheath layer 3 has a thickness of 2.5 to 4.5 mm.
In some embodiments, the aluminum alloy wire unit 21 has an outer diameter of 2.0 to 2.5 mm.
The utility model provides a submarine optical cable, wherein a cable core part is produced by adopting an OPGW (optical fiber composite overhead ground wire) power optical cable production mode, and the production steps are as follows:
s1 coloring the optical fiber;
s2 manufacturing a tube by using the stainless steel light unit 22;
s3 stranding cage cabling.
The utility model provides a submarine optical cable which has the following beneficial effects:
1) the utility model provides an optical submarine cable, 1700 core optical fiber submarine cables with installed fibers are easy to maintain;
2) the submarine optical cable provided by the utility model has the advantages that the cable core part is produced in an innovative production mode of the OPGW electric optical cable, special inner armor of the submarine cable and argon arc welding equipment are not needed, the equipment investment is low, and the requirement for rapid production is met;
3) the utility model provides a submarine optical cable, which is characterized in that a stainless steel tube optical unit is stranded in a layer-stranding mode innovatively, the structure extra length is increased by 0.3%, the tensile resistance and the high and low temperature performance of a common optical fiber are compensated, and the production cost is greatly reduced;
4) the utility model provides a submarine optical cable, wherein a cable core can be produced by adopting an SZ twisting (high speed) mode or a spiral twisting (low speed) mode, the SZ twisting (high speed) mode has low tension but high production speed, better pipe protection, low spiral twisting speed and higher tension strength, so that the performance of the cable core is improved;
5) according to the submarine optical cable, the gaps between the aluminum alloy wire units and the stainless steel tube optical units are filled with water-blocking yarns, so that the cost is reduced, the water seepage performance of the submarine optical cable is guaranteed, and the submarine optical cable is more environment-friendly;
6) the utility model provides a submarine optical cable, wherein a sheath part adopts HDPE (high-density polyethylene), the withstand voltage requirement of 6-12 KV can be met, and the HDPE replaces an imported Dow insulator, so that the problem of high raw material cost is solved;
7) the utility model provides a submarine optical cable, which is characterized in that a cable core is produced by adopting the mode, compared with the traditional submarine optical cable, the production speed is doubled, the cost is reduced by about 30 percent, the submarine optical cable is suitable for laying depth of 50-600M, is suitable for being used in most sea areas in China, and is particularly suitable for the requirements of ocean development strategies in China.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all modifications and equivalents falling within the scope of the appended claims. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. An undersea optical fiber cable, comprising: strengthen core (1), be equipped with structural layer (2), HDPE oversheath layer (3) and armor (4) from inside to outside along strengthening core (1) outside in proper order, structural layer (2) include: aluminium alloy line unit (21) and a plurality of stainless steel pipe light unit (22), aluminium alloy line unit (21) with stainless steel pipe light unit (22) strand in strengthen the outside of core (1), armor (4) include: the marine cable comprises a plurality of galvanized steel wire layers (41), wherein the galvanized steel wire layers (41) are spirally stranded and wound around a PP (polypropylene) rope (42) of the marine cable.
2. Submarine optical cable according to claim 1, wherein said strength member (1) comprises: the steel core (11), the outside cladding of steel core (11) has aluminium layer (12) to constitute reinforced core (1).
3. The undersea optical cable of claim 1, comprising: the water blocking yarn (23) is arranged at a gap between the aluminum alloy wire unit (21) and the stainless steel tube light unit (22).
4. The submarine optical cable according to claim 1, wherein each stainless-steel tubular optical unit (22) contains an optical fiber and a hydrogen-absorbing water-blocking paste.
5. Submarine optical cable according to claim 1, wherein the interstices of said galvanized steel wire layer (41) are covered with a water-resistant layer.
6. Submarine optical cable according to claim 2, wherein said steel core (11) is of unitary structure.
7. Submarine optical cable according to claim 1, wherein the HDPE jacket layer (3) has a thickness of 2.5-4.5 mm.
8. The submarine optical cable according to claim 1, wherein the aluminum alloy wire unit (21) has an outer diameter of 2.0-2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121596986.5U CN215986623U (en) | 2021-07-14 | 2021-07-14 | Submarine optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121596986.5U CN215986623U (en) | 2021-07-14 | 2021-07-14 | Submarine optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215986623U true CN215986623U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121596986.5U Active CN215986623U (en) | 2021-07-14 | 2021-07-14 | Submarine optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215986623U (en) |
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2021
- 2021-07-14 CN CN202121596986.5U patent/CN215986623U/en active Active
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