CN109727718B - Bunched submarine cable and dynamic and static transition method thereof - Google Patents
Bunched submarine cable and dynamic and static transition method thereof Download PDFInfo
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- CN109727718B CN109727718B CN201811583565.1A CN201811583565A CN109727718B CN 109727718 B CN109727718 B CN 109727718B CN 201811583565 A CN201811583565 A CN 201811583565A CN 109727718 B CN109727718 B CN 109727718B
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Abstract
The invention discloses a bunched submarine cable, comprising: the dynamic part and the static part are connected through the transition section, and both the dynamic part and the static part consist of a water-blocking conductor, an inner shield, an insulator, an outer shield, a metal shield, a semi-conductive water-blocking tape, a subunit jacket, a fan-shaped layer filling, an inner jacket, a first layer of armor, a second layer of armor, an outer jacket and an optical unit; a first layer of filling and a second layer of filling are also arranged in the static part; the transition section is composed of a metal sleeve and an identification band. According to the dynamic and static transition technology, the transition section is adopted for dynamic and static transition, so that the deep sea water-blocking performance is excellent, the outer diameter and the weight are light, the dynamic part and the static part are in smooth transition, the cable core structure in the dynamic part and the static part is not damaged, and the dynamic and static transition technology is simple and convenient.
Description
Technical Field
The invention belongs to the field of ocean energy, and particularly relates to a bunched submarine cable and a dynamic and static transition method thereof.
Background
With the advance of 'one-path-in-one' construction and ocean economy, ocean energy development goes from shallow sea to deep sea, deep sea energy development needs to use a deep sea, long-distance and high-capacity transmission bundled dynamic submarine cable, the traditional bundled dynamic submarine cable has large outer diameter and weight and short manufacturing length, the requirement of deep sea long-distance and high-capacity transmission cannot be met, and meanwhile, a dynamic part and a static part are connected by using a joint box.
Disclosure of Invention
The invention mainly solves the technical problem of providing a bunched submarine cable and a dynamic and static transition method thereof, which can make up for the defects of poor water resistance, large outer diameter and heavy weight of the traditional product.
In order to solve the technical problems, the invention adopts a technical scheme that: a bundled undersea cable, comprising: the dynamic part and the static part are connected through the transition structure, the dynamic part and the static part are respectively composed of a water-blocking conductor, an inner shield, an insulator, an outer shield, a metal shield, a semi-conductive water-blocking tape, a subunit jacket, a fan-shaped layer filling, an inner jacket, a first layer of armor, a second layer of armor, an outer jacket and a light unit, the inner shield, the insulator, the outer shield, the metal shield and the semi-conductive water-blocking tape are sequentially wrapped on the water-blocking conductor from inside to outside to form a conductor structure, the subunit jacket is wrapped outside the conductor structure to form a conductor unit, the inner jacket is wrapped outside the conductor unit, the fan-shaped layer filling and the light unit are filled between the conductor unit and the inner jacket, and a first wrapping tape is arranged on the inner wall of the inner jacket, the first layer of armor, the second layer of armor and the outer sheath are sequentially wrapped on the outer wall of the inner sheath from inside to outside, a second wrapping tape is arranged between the first layer of armor and the second layer of armor, and a third wrapping tape is arranged between the second layer of armor and the outer sheath;
a first layer of filling and a second layer of filling are further arranged in the static part, and the first layer of filling and the second layer of filling are respectively positioned in the first layer of armor and the second layer of armor;
the transition structure is composed of a metal sleeve and an identification band, the metal sleeve is positioned between the first layer of filling and the first layer of armor and between the second layer of filling and the second layer of armor, and the identification band is positioned on the outer surface of the outer sheath.
In a preferred embodiment of the invention, said first layer of armouring and said second layer of armouring in said dynamic portion are all comprised of steel wires.
In a preferred embodiment of the invention, said first layer of armouring and said second layer of armouring in said static part are respectively composed of steel wires and said first layer of padding and steel wires and said second layer of padding.
In a preferred embodiment of the invention, the first layer of filler and the second layer of filler are both polymer rods.
In a preferred embodiment of the invention, steel wires in the first layer of armor and the second layer of armor and polymer rods in the first layer of filler and the second layer of filler are bonded by special glue.
In a preferred embodiment of the invention, the first layer of filler and the second layer of filler are uniformly distributed within the first layer of armor and the second layer of armor, respectively.
A dynamic and static transition method for a bunched submarine cable comprises the following specific steps:
(1) producing the whole submarine cable with the same outer diameter on line until the inner sheath is produced;
(2) cutting steel wires on the first layer of armor and the second layer of armor at a stranding body and a die opening, replacing the first layer of filling and the second layer of filling at the same position, synchronously wrapping the second wrapping tape after the first layer of armor and the first layer of filling are correspondingly replaced, synchronously wrapping the third wrapping tape after the second layer of armor and the second layer of filling are correspondingly replaced, connecting the steel wires in the first layer of armor and the second layer of armor with polymer rods in the first layer of filling and the second layer of filling through high-viscosity glue, and sleeving the metal sleeve;
(3) replacing the steel wires and the polymer rods one by one so as to realize the transition of the first layer of armor and the second layer of armor, and continuing to produce the static part of the submarine cable after all the replacements are finished until the synchronous lapping of the third wrapping tape is finished;
(4) and (4) carrying out outer sheath production on the product obtained in the step (3), tightly extruding the outer sheath on the product obtained in the step (3), and making the identification band on the surface of the outer sheath within the range of the metal sleeve.
In a preferred embodiment of the present invention, the length of the transition in step (3) is greater than or equal to 400 mm.
In a preferred embodiment of the invention, the number of the steel wires and the polymer rods in the first layer of armor and the second layer of armor in one-to-one replacement in the step (3) is more than or equal to 1.
In a preferred embodiment of the present invention, the transition between the first layer of armor and the second layer of armor which are adjacent to each other should be a proper distance, the specific distance is controlled according to the production process, and after the transition process of the connection of the first layer of armor is stabilized, the replacement connection of the second layer of armor is performed.
The invention has the beneficial effects that: the dynamic and static transition technology adopts a transition structure to carry out dynamic and static transition, thereby realizing the lightness of deep sea water resistance, external diameter and weight, smooth transition between a dynamic part and a static part, not damaging the cable core structure, being simple and convenient, realizing the continuous production of a factory, effectively reducing the cost and the production and installation period, and improving the economy and reliability.
Drawings
Fig. 1 is a dynamic partial cross-sectional view of a bundled undersea cable.
Fig. 2 is a cross-sectional view of a static portion of a bundled undersea cable.
FIG. 3 is a three-dimensional view of dynamic and static transition second layer armor connection of a bunched submarine cable.
The parts in the drawings are numbered as follows: 1. a water blocking conductor; 2. inner shielding; 3. insulating; 4. external shielding; 5. metal shielding; 6. a semiconductive water-blocking tape; 7. a subunit jacket; 8. filling a fan-shaped layer; 9. an inner sheath; 10. a first layer of armor; 11. a second layer of armor; 12. an outer sheath; 13. a light unit; 14. a first wrapping tape; 15. a second wrapping tape; 16. a third wrapping tape; 17. filling a first layer; 18. filling a second layer; 19. a metal sleeve; 20. an identification band.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1 to 3, an embodiment of the present invention includes: a bundled undersea cable comprising: the dynamic part and the static part are connected through the transition structure, the dynamic part and the static part are both composed of a water-blocking conductor 1, an inner shield 2, an insulation 3, an outer shield 4, a metal shield 5, a semi-conductive water-blocking tape 6, a subunit jacket 7, a fan-shaped layer filling 8, an inner jacket 9, a first layer of armor 10, a second layer of armor 11, an outer jacket 12 and an optical unit 13, the inner shield 2 is formed by combining a wrapped semi-conductive water-blocking tape and an extruded semi-conductive shielding material, the insulation 3 is made of TR-XLPE water-resistant cross-linked polyethylene or EPR ethylene propylene rubber, the outer shield 4 is made of the extruded semi-conductive shielding material, the metal shield 5 is made of a copper strip or a copper wire, the subunit jacket 7 is made of polyethylene plastic, the fan-shaped layer filling 8 is made of polyvinyl chloride plastic, the inner sheath 9 and the outer sheath 12 are made of polyethylene plastics or polyurethane plastics, and the first armor layer 10 and the second armor layer 11 are made of galvanized steel wires.
The inner shield 2, the insulation 3, the outer shield 4, the metal shield 5 and the semi-conductive water-blocking tape 6 are sequentially wrapped on the water-blocking conductor 1 from inside to outside to form a conductor structure, the conductor structure is wrapped on the subunit sheath 7 to form a conductor unit, the conductor unit is wrapped on the inner sheath 9, the sector-shaped layer filling 8 and the optical unit 13 are filled between the conductor unit and the inner sheath 9 in a layer-filling manner, a first wrapping tape 14 is arranged on the inner wall of the inner sheath 9, the first armor 10, the second armor 11 and the outer sheath 12 are sequentially wrapped on the outer wall of the inner sheath 9 from inside to outside, a second wrapping tape 15 is arranged between the first armor 10 and the second armor 11, a third wrapping tape 16 is arranged between the second armor 11 and the outer sheath 12, and the first wrapping tape 14, The second wrapping band 15 and the third wrapping band 16 are made of polymer fiber materials.
A first layer of filler 17 and a second layer of filler 18 are further installed in the static part, the first layer of filler 17 and the second layer of filler 18 are respectively located in the first layer of armor 10 and the second layer of armor 11, the first layer of filler 17 and the second layer of filler 18 are both polymer rods, and the polymer rods are made of PE or nylon.
The first layer of filler 17 and the second layer of filler 18 are evenly distributed in the first layer of armour 10 and the second layer of armour 11, respectively, to maintain the roundness and stability of the submarine cable.
The transition structure comprises metal sleeve 19 and sign area 20, metal sleeve 19 is located first layer is filled 17 with between the first layer armor 10 and the second floor is filled 18 with between the second floor armor 11, sign area 20 is located the surface of oversheath 12, sign area 20 is convenient for back cabling, installation, construction, salvagees.
The first layer of armouring 10 and the second layer of armouring 11 in the dynamic part are all made of steel wires.
The first layer of armouring 10 and the second layer of armouring 11 in the static part are composed of steel wires and the first layer of filling 17 and steel wires and the second layer of filling 18, respectively.
The steel wires in the first layer of armor 10 and the second layer of armor 11 and the polymer rods in the first layer of filler 17 and the second layer of filler 18 are bonded by special glue, so that the polymer rods and the steel wires can be stably connected.
A dynamic and static transition method for a bunched submarine cable comprises the following specific steps:
(1) producing the whole submarine cable with the same outer diameter on line until the inner sheath 9 is produced;
(2) cutting steel wires on the first layer of armor 10 and the second layer of armor 11 at a stranding body and a die opening, replacing the first layer of filling 17 and the second layer of filling 18 at the same position, synchronously wrapping the second wrapping tape 15 after the first layer of armor 10 and the first layer of filling 17 are correspondingly replaced, synchronously wrapping the third wrapping tape 16 after the second layer of armor 11 and the second layer of filling 18 are correspondingly replaced, connecting the steel wires in the first layer of armor 10 and the second layer of armor 11 with polymer rods in the first layer of filling 17 and the second layer of filling 18 through high-viscosity glue, and sleeving the metal sleeve 19;
(3) and steel wires and polymer rods are replaced one by one, the number of the steel wires and the polymer rods in the first layer of armor 10 and the second layer of armor 11 which are replaced one by one is more than or equal to 1, so that the transition of the first layer of armor 10 and the second layer of armor 11 is realized, the transition length is more than or equal to 400mm, and after all the replacement is finished, the static part of the submarine cable is continuously produced until the synchronous wrapping of the third wrapping belt 1 is finished.
The transition between the first layer of armor 10 and the second layer of armor 11 which are adjacent to each other should have a proper distance, the specific distance is controlled according to the production process, and when the connection transition process of the first layer of armor 10 is stable, the second layer of armor 11 is replaced and connected.
And gradually replacing the steel wires in the first armor 10 at the inner layer to the steel wires in the second armor 11 at the outermost layer when the dynamic part and the static part are in transition, and after each layer is replaced, replacing the steel wires in the next layer until the steel wires in each layer are completely replaced to form stable transition after the production process is stable.
(4) And (3) producing the outer sheath 12 for the product in the step (3), tightly extruding the outer sheath 12 on the product in the step (3), and making the identification band 20 on the surface of the outer sheath 12 within the range of the metal sleeve 19.
The dynamic bunched submarine cable is filled with an extrusion type sheath layer, so that the roundness and mechanical property of the submarine cable are ensured, and the outer diameter and weight are reduced.
Through the dynamic and static transition technology of the bunched submarine cable, transition from a single dynamic part to a static part or transition from the static part to the dynamic part can be realized, and even a plurality of complex transitions, namely the dynamic part, the static part and the dynamic part, and the like can be realized.
Compared with the prior art, the bunched submarine cable and the dynamic and static transition method thereof adopt the transition structure to carry out dynamic and static transition, thereby realizing the lightness of deep sea water resistance, external diameter and weight, smooth transition between the dynamic part and the static part, not damaging the cable core structure therein, being simple and convenient, realizing the continuous production of factories, effectively reducing the cost and the production and installation period, and improving the economy and reliability.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A bundled undersea cable, comprising: the dynamic part and the static part are connected through the transition structure, the dynamic part and the static part are respectively composed of a water-blocking conductor, an inner shield, an insulator, an outer shield, a metal shield, a semi-conductive water-blocking tape, a subunit jacket, a fan-shaped layer filling, an inner jacket, a first layer of armor, a second layer of armor, an outer jacket and a light unit, the inner shield, the insulator, the outer shield, the metal shield and the semi-conductive water-blocking tape are sequentially wrapped on the water-blocking conductor from inside to outside to form a conductor structure, the subunit jacket is wrapped outside the conductor structure to form a conductor unit, the inner jacket is wrapped outside the conductor unit, the fan-shaped layer filling and the light unit are filled between the conductor unit and the inner jacket, and a first wrapping tape is arranged on the inner wall of the inner jacket, the first layer of armor, the second layer of armor and the outer sheath are sequentially wrapped on the outer wall of the inner sheath from inside to outside, a second wrapping tape is arranged between the first layer of armor and the second layer of armor, and a third wrapping tape is arranged between the second layer of armor and the outer sheath;
a first layer of filling and a second layer of filling are further arranged in the static part, and the first layer of filling and the second layer of filling are respectively positioned in the first layer of armor and the second layer of armor;
the transition structure consists of a metal sleeve and an identification band, the metal sleeve is positioned between the first layer of filling and the first layer of armor and between the second layer of filling and the second layer of armor, and the identification band is positioned on the outer surface of the outer sheath;
the method for preparing the transition structure of the bunched submarine cable comprises the following specific steps:
(1) producing the whole submarine cable with the same outer diameter on line until the inner sheath is produced;
(2) cutting steel wires on the first layer of armor and the second layer of armor at a stranding body and a die opening, replacing the first layer of filling and the second layer of filling at the same position, synchronously wrapping the second wrapping tape after the first layer of armor and the first layer of filling are correspondingly replaced, synchronously wrapping the third wrapping tape after the second layer of armor and the second layer of filling are correspondingly replaced, connecting the steel wires in the first layer of armor and the second layer of armor with polymer rods in the first layer of filling and the second layer of filling through high-viscosity glue, and sleeving the metal sleeve;
(3) replacing the steel wires and the polymer rods one by one so as to realize the transition of the first layer of armor and the second layer of armor, and continuing to produce the static part of the submarine cable after all the replacements are finished until the synchronous lapping of the third wrapping tape is finished;
(4) and (4) carrying out outer sheath production on the product obtained in the step (3), tightly extruding the outer sheath on the product obtained in the step (3), and making the identification band on the surface of the outer sheath within the range of the metal sleeve.
2. A bundled submarine cable according to claim 1, characterized in that: the first layer of armor and the second layer of armor in the dynamic part are all composed of steel wires.
3. A bundled submarine cable according to claim 1, characterized in that: and the first layer of armor and the second layer of armor in the static part are respectively composed of steel wires and the first layer of filling and the steel wires and the second layer of filling.
4. A bundled submarine cable according to claim 1, characterized in that: the first layer of fill and the second layer of fill are both polymer rods.
5. A bundled submarine cable according to claim 1, characterized in that: and steel wires in the first layer of armor and the second layer of armor of the static part and polymer rods in the first layer of filler and the second layer of filler are bonded by special glue.
6. A bundled submarine cable according to claim 1, characterized in that: the first layer of filler and the second layer of filler are uniformly distributed in the first layer of armor and the second layer of armor respectively.
7. A bundled submarine cable according to claim 1, characterized in that: the transition length in the step (3) is more than or equal to 400 mm.
8. A bundled submarine cable according to claim 1, characterized in that: in the step (3), the number of the steel wires and the polymer rods in the first layer of armor and the second layer of armor which are replaced one by one is more than or equal to 1.
9. A bundled submarine cable according to claim 1, characterized in that: the transition of the first layer of armor and the second layer of armor which are adjacent to each other has a proper distance, the specific distance is controlled according to the production process, and after the transition process of the first layer of armor connection is stable, the second layer of armor is replaced and connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811583565.1A CN109727718B (en) | 2018-12-24 | 2018-12-24 | Bunched submarine cable and dynamic and static transition method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811583565.1A CN109727718B (en) | 2018-12-24 | 2018-12-24 | Bunched submarine cable and dynamic and static transition method thereof |
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| CN109727718A CN109727718A (en) | 2019-05-07 |
| CN109727718B true CN109727718B (en) | 2020-04-24 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113299431B (en) * | 2021-05-21 | 2022-04-15 | 中天科技海缆股份有限公司 | Dynamic and static submarine cable and manufacturing method thereof |
| CN114530282B (en) * | 2021-12-20 | 2024-02-23 | 烽火海洋网络设备有限公司 | Cable type transition joint with different armored structures for submarine cables and online transition method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104575738A (en) * | 2013-10-24 | 2015-04-29 | 江苏江扬电缆有限公司 | Anticorrosive submarine cable capable of radially and vertically blocking water |
| CN203746474U (en) * | 2014-03-25 | 2014-07-30 | 中国海洋石油总公司 | Deepwater dynamic submarine cable bunch |
| CN105448395B (en) * | 2015-12-07 | 2017-08-08 | 江苏亨通海洋光网系统有限公司 | The extra large cable joint and its online Transition Technology of a kind of different sheathed structures |
| CN106653180B (en) * | 2016-11-29 | 2018-09-11 | 福建南新电缆有限公司 | Block water corrosion-resistant seabed fiber compound power cable |
| CN207381132U (en) * | 2017-08-25 | 2018-05-18 | 青岛汉缆海洋工程装备有限公司 | Seabed fiber composite cable |
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Effective date of registration: 20220117 Address after: 215500 No.8, Tongda Road, Changshu Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: Hengtong Submarine Power Cable Co.,Ltd. Patentee after: JIANGSU HENGTONG WIRE&CABLE TECHNOLOGY Co.,Ltd. Address before: 215500 No.8, Tongda Road, Changshu Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: Hengtong Submarine Power Cable Co.,Ltd. |