CN111477393A - Dynamic submarine cable and static submarine cable transition assembly and preparation method thereof - Google Patents
Dynamic submarine cable and static submarine cable transition assembly and preparation method thereof Download PDFInfo
- Publication number
- CN111477393A CN111477393A CN202010332289.2A CN202010332289A CN111477393A CN 111477393 A CN111477393 A CN 111477393A CN 202010332289 A CN202010332289 A CN 202010332289A CN 111477393 A CN111477393 A CN 111477393A
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- submarine cable
- cable
- steel wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/228—After-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/12—Floating cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention provides a dynamic submarine cable and static submarine cable transition assembly and a preparation method thereof. The dynamic submarine cable and the static submarine cable are both composed of cable units, armored steel wires and sheaths, the same cable unit is adopted in the dynamic submarine cable and the static submarine cable, the cable units are continuous and uninterrupted in the production and manufacturing process, and the online transition of the cable units is mainly embodied in the transition of the armored units and the sheath units. The dynamic submarine cable adopts two layers of armored steel wires, the static submarine cable adopts one layer of armored steel wire, and the invention adopts a factory online transition technology to ensure that the double-layer armored steel wire is in online transition to the one layer of armored steel wire and is matched with the online transition of the sheath, thereby ensuring the smooth transition of the dynamic submarine cable and the static submarine cable, realizing the stable and high-efficiency production of the submarine cable, reducing the use of an intermediate joint and improving the economy of the submarine cable.
Description
Technical Field
The invention relates to the field of submarine cables, in particular to a dynamic submarine cable and static submarine cable transition assembly and a preparation method thereof.
Background
Ocean resource development is developing towards the deep open sea, the demand of dynamic submarine cables is more and more, and due to the fact that the cost of the dynamic submarine cables is higher, the development period is longer, and a mode that the dynamic submarine cables are combined with static submarine cables is generally adopted. The general dynamic submarine cable and the static submarine cable are connected in a mode of an intermediate joint, but the mode has the disadvantages of high cost, long period and insufficient reliability. Therefore, a factory online transition connection mode is developed, so that the connection of the dynamic submarine cable and the static submarine cable is completed in a factory, the stability and the high efficiency of submarine cable production are realized, the use of intermediate joints is reduced, and the economy of the submarine cable is improved.
Disclosure of Invention
The invention provides a transition assembly of a dynamic submarine cable and a static submarine cable and a preparation method thereof, which are used for solving the defects of complex connection, long period, high cost, low reliability and the like of the traditional intermediate joint.
In order to achieve the above objects and other related objects, the present invention adopts the following technical solutions:
the invention provides a transition assembly of a dynamic submarine cable and a static submarine cable, which comprises:
a cable unit comprising a continuous static cable section and a dynamic cable section;
the inner-layer armored steel wire is sleeved outside the static cable part and the dynamic cable part;
the outer layer armor steel wire is sleeved outside the inner layer armor steel wire, and the position of the outer layer armor steel wire corresponds to the dynamic cable part;
and the sheath is tightly sleeved on the outer sides of the outer layer armored steel wire and the inner layer armored steel wire.
And one end of the outer layer armored steel wire close to the static cable part is fixedly connected with the inner layer armored steel wire.
The steel wire sheath is characterized by further comprising an adhesive, wherein the adhesive is positioned on the inner side of the sheath and corresponds to the joint of the outer layer armor steel wire and the inner layer armor steel wire.
A preparation method of a dynamic submarine cable and static submarine cable integrated transition assembly comprises the following steps:
1) the cable unit is pulled to an armor production line to carry out installation production of the inner layer armor steel wire;
2) after the static submarine cable inner layer armored steel wire in the step 1) is produced, stopping the submarine cable, keeping the inner layer armored steel wire tensioned continuously, meanwhile, drawing the outer layer armored steel wire to the outer side of the submarine cable inner layer armored steel wire, and welding the end part of the outer layer armored steel wire to the inner layer armored steel wire to ensure the tensioning force in the production process of the outer layer armored steel wire;
3) coating an adhesive at the end part of the outer layer armor steel wire;
4) after the adhesive is completely solidified in the step 3), continuously producing the outer layer armored steel wire;
5) and 4, continuously extruding and producing a sheath outside the cable semi-finished product which finishes the continuous production of the outer layer armored steel wire in the step 4 to obtain the sheath tightly wrapped on the outer layer of the cable semi-finished product, so as to obtain the dynamic submarine cable and static submarine cable integrated transition assembly.
And in the step 2), a transition section of 5-20 cm is formed at the joint of the inner layer armored steel wire (2) and the outer layer armored steel wire (3).
In the step 3), the coating range of the adhesive is 20-50 cm before and after the end range of the outer layer armored steel wire, and the adhesive is a resin adhesive or other adhesive capable of realizing adhesive fixation.
And 4), winding and coating the adhesive coating position by using an adhesive coating tape or non-woven fabric to ensure that the adhesive is uniformly and roundly coated.
In the invention, in order to realize the factory online transition of the dynamic submarine cable and the static submarine cable, a smooth transition mode is adopted, the continuity of the dynamic submarine cable and the static submarine cable is ensured, and the integrity of the submarine cable is realized.
Developments submarine cable and static submarine cable, both constitute by cable unit, armor steel wire and sheath, and both adopt same cable unit, and in the manufacturing process, cable unit is incessant in succession, and wherein, developments submarine cable has two-layer armor, and static submarine cable has one deck armor, because the difference of the armor number of piles, leads to sheath external diameter also inconsistent.
The on-line transition is mainly embodied in the continuous transition of the armor unit and the sheath unit.
The cable unit is continuous and uninterrupted, the two layers of armor steel wires of the dynamic submarine cable are in on-line transition to the one layer of armor steel wire of the static submarine cable, the inner layer of armor is continuous and uninterrupted, and meanwhile, the continuous production and smooth transition of the matched sheath are realized. In the production process of the outer armor, the outer armor steel wires are cut, the cutting position difference of the adjacent steel wires is ensured to be 5-20 cm (forming a connecting end point with alternate length), the cutting points (also called as the connecting end points) are welded on the inner armor, and the tension of the outer armor steel wires is kept from being changed violently. The alternate connecting end of the armor steel wire of the outer layer is connected with the armor steel wire of the inner layer, and a section of gradually changed area is called as a transition section.
Resin or other high-performance binders are coated at the shearing position of the outer layer steel wire, the coating range covers 20-50 cm from the front to the back of the shearing range (namely the transition section) of the steel wire, each sheared steel wire and the inner layer armor steel wire in the shearing range can be wrapped in the binders, the coating is uniform, gaps among all armor steel wires can be filled with the binders, and the binders are guaranteed to be completely solidified.
From dynamic submarine cable to static submarine cable, the sheath is extruded production in succession, and is incessant, guarantees that sheath thickness does not take place great change along with the transition, and transition part sheath external diameter can slightly increase, and transition to static submarine cable, the sheath external diameter can reduce, control thickness.
The technical scheme of the invention has the following advantages: the factory online transition method of the dynamic submarine cable and the static submarine cable has the advantages of flexible process, convenience and quickness in operation and easiness in implementation. Through the mode of mill's online transition, only carry out smooth transition to the armor steel wire to the continuous production of extruding out of control sheath guarantees the continuity of cable unit, does not receive destruction damage, realizes the continuity production of dynamic submarine cable and static submarine cable, guarantees the integrality, reliability and the economic nature of submarine cable.
Drawings
Fig. 1 is a reference view of the underwater deployment of the dynamic and static sea cables of the present invention.
Fig. 2 is a cross-sectional view of the dynamic submarine cable and the static submarine cable according to the present invention.
Fig. 3 is a cross-sectional view of the dynamic submarine cable and the static submarine cable according to the present invention.
Fig. 4 is a diagram of the overall effect of the online transition of the dynamic submarine cable and the static submarine cable plant according to the invention.
Fig. 5 is a perspective view of the dynamic submarine cable and static submarine cable plant on-line transition according to the present invention.
Description of reference numerals:
the cable comprises a cable unit 1, inner-layer armored steel wires 2, outer-layer armored steel wires 3, a sheath 4 and an adhesive 5.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The specific implementation mode of the invention is different according to the actual production process, for example, the operation process is changed when the sequential production process of the dynamic submarine cable and the static submarine cable is different.
The invention provides a transition assembly of a dynamic submarine cable and a static submarine cable, which comprises:
a cable unit 1 comprising a continuous static cable section and a dynamic cable section;
the inner-layer armored steel wire 2 is sleeved outside the static cable part and the dynamic cable part;
the outer layer armored steel wire 3 is sleeved outside the inner layer armored steel wire 2, and the position of the outer layer armored steel wire 3 corresponds to the position of the dynamic cable part;
and the sheath 4 is tightly sleeved on the outer sides of the outer layer armored steel wires 3 and the inner layer armored steel wires 2.
And one end of the outer layer armored steel wire 3 close to the static cable part is fixedly connected with the inner layer armored steel wire 2.
The steel wire sheath also comprises an adhesive 5, wherein the adhesive 5 is positioned on the inner side of the sheath 4 and corresponds to the joint of the outer layer armor steel wires 3 and the inner layer armor steel wires 2.
The invention also provides a preparation method of the dynamic submarine cable and static submarine cable integrated transition component, which comprises the following steps:
1) the cable unit 1 is pulled to an armor production line to carry out installation production of the inner layer armor steel wire 2;
2) the static submarine cable inner layer armored steel wire 2 is produced, the machine is stopped, the inner layer armored steel wire 2 is kept to be tensioned continuously, meanwhile, the outer layer armored steel wire 3 is drawn to the submarine cable inner layer armored steel wire 2, the end part of the outer layer armored steel wire 3 is welded to the inner layer armored steel wire 2, and therefore the tensioning force in the production process of the outer layer armored steel wire 3 is guaranteed;
3) coating an adhesive in the end part range of the outer layer armor steel wire 3;
4) after the adhesive 5 is completely solidified, continuously producing the outer layer armor steel wire 3;
5) and (3) continuously extruding the sheath 4 from the outside of the cable semi-finished product which finishes the continuous production of the outer layer armored steel wire 3 in the step 4) to obtain the sheath 4 tightly wrapped on the outer layer of the cable semi-finished product, so as to obtain the dynamic submarine cable and static submarine cable integrated transition assembly.
And 2), the difference between the front position and the rear position of the end part of the adjacent outer layer armored steel wire 2 in the step 2) is 5-20 cm.
In the step 3), the coating range of the adhesive is 20-50 cm before and after the end of the outer layer armored steel wire 3, and the adhesive is a resin adhesive or a resin adhesive.
In the step 4), the adhesive is wound and coated by using an adhesive coating tape or non-woven fabric, so that the adhesive is uniformly and roundly coated.
The present embodiment is made in accordance with the armoring process, the production process in which the static submarine cable is at the front and the production process in which the dynamic submarine cable is at the back.
The dynamic submarine cable and the static submarine cable are provided with a continuous and uninterrupted cable unit 1 (the same cable unit) and a continuous and uninterrupted inner layer armored steel wire 2 (the same set of inner layer armored steel wire). The procedures before the whole submarine cable is armored are uniform, and the armor production procedure and the sheath production procedure need to be in online transition.
The cable unit 1 (the produced semi-finished submarine cable) is pulled to an armor production line; firstly, producing a static submarine cable, namely only installing and producing an inner-layer armored steel wire 2 on a cable unit 1; and (3) stopping the production of the inner-layer armored steel wire 2 of the static submarine cable after finishing the production, keeping the inner-layer armored steel wire 2 to be continuously tensioned, simultaneously drawing the outer-layer armored steel wire 3 to the inner-layer armored steel wire 2 of the submarine cable, and welding the end part of the outer-layer armored steel wire 3 to the inner-layer armored steel wire 2 to ensure the tension force in the production process of the outer-layer armored steel wire 3. In the production process of the outer layer armor steel wire, the outer layer armor steel wire is cut, the cutting position difference of adjacent steel wires is ensured to be 5-20 cm (forming a connecting end point with alternate length), the cutting point (also called as the connecting end point) is welded on the inner layer armor, and the tension of the outer layer armor steel wire is kept from being changed violently. The alternate connecting end of the armor steel wire of the outer layer is connected with the armor steel wire of the inner layer, and a section of gradually changed area is called as a transition section. Resin or other high-performance binders are coated at the shearing position of the outer-layer armor steel wire 3, the coating range covers 20-50 cm from the front to the back of the steel wire shearing range (namely, the transition section), each sheared steel wire and the inner-layer armor steel wire 2 in the shearing range can be wrapped in the binders, the coating is uniform, gaps among all armor steel wires can be filled with the binders, and the binders are guaranteed to be completely solidified.
And winding and coating the part 5 of the binder by using a rubberizing cloth tape or non-woven fabric to ensure uniform and round rubberizing. After the adhesive 5 is completely solidified, the outer armor steel wire 3 is continuously produced. The next step is extrusion production of the jacket 4. According to the procedures, the sheath 4 is produced from the dynamic submarine cable to the static submarine cable, and the sheath 4 is continuously extruded and produced to continuously coat the dynamic submarine cable, the online transition section and the static submarine cable. The thickness of the sheath 4 is controlled in the extrusion process, large change is not caused along with transition, the outer diameter of the sheath 4 at the transition part is slightly increased, the transition is carried out to a static submarine cable, and the outer diameter of the sheath 4 is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A dynamic sea cable and static sea cable integrated transition assembly, comprising:
a cable unit (1) comprising a continuous static cable section and a dynamic cable section;
the inner-layer armored steel wire (2) is sleeved outside the static cable part and the dynamic cable part;
the outer layer armored steel wire (3) is sleeved outside the inner layer armored steel wire (2), and the position of the outer layer armored steel wire (3) corresponds to the position of the dynamic cable part;
the sheath (4) is tightly sleeved on the outer sides of the outer layer armored steel wires (3) and the inner layer armored steel wires (2).
2. A dynamic submarine cable and static submarine cable integrated transition assembly according to claim 1, wherein one end of the outer armor wires (3) close to the static cable part is fixedly connected with the inner armor wires (2).
3. A dynamic submarine cable and static submarine cable integrated transition assembly according to claim 1, further comprising an adhesive (5), wherein said adhesive (5) is located inside the sheath (4) and corresponds to the position of the junction of the outer armor wires (3) and the inner armor wires (2).
4. A preparation method of a dynamic submarine cable and static submarine cable integrated transition assembly is characterized by comprising the following steps:
1) the cable unit (1) is pulled to an armor production line to carry out installation production of the inner layer armor steel wire (2);
2) after the static submarine cable inner-layer armored steel wire (2) in the step 1) is produced, stopping the submarine cable, keeping the inner-layer armored steel wire (2) tensioned continuously, drawing the outer-layer armored steel wire (3) to the outer side of the submarine cable inner-layer armored steel wire (2), and welding the end part of the outer-layer armored steel wire (3) on the inner-layer armored steel wire (2);
3) coating an adhesive at the end of the outer armor steel wire (3);
4) after the adhesive in the step 3) is completely solidified, continuously producing the outer layer armor steel wire (3);
5) and (3) continuously extruding the sheath (4) from the outside of the cable semi-finished product which finishes the continuous production of the outer layer armored steel wire (3) in the step (4) to obtain the sheath (4) tightly wrapped on the outer layer of the cable semi-finished product, so as to obtain the dynamic submarine cable and static submarine cable integrated transition assembly.
5. The preparation method of the integrated transition assembly of the dynamic submarine cable and the static submarine cable according to claim 4, wherein a transition section of 5-20 cm is formed at the joint of the inner layer of armor steel wires (2) and the outer layer of armor steel wires (3) in the step 2).
6. The method for preparing a dynamic submarine cable and static submarine cable integrated transition assembly according to claim 5, wherein in step 3), the adhesive is applied in the range of 20-50 cm before and after the transition section.
7. The method of claim 4, wherein the bonding agent is a resin bonding agent.
8. The method for preparing a transition assembly integrated with a dynamic submarine cable and a static submarine cable according to claim 4, wherein in step 4), the adhesive coating place is wrapped by an adhesive coated cloth tape or a non-woven fabric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010332289.2A CN111477393B (en) | 2020-04-24 | 2020-04-24 | Dynamic submarine cable and static submarine cable transition assembly and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010332289.2A CN111477393B (en) | 2020-04-24 | 2020-04-24 | Dynamic submarine cable and static submarine cable transition assembly and preparation method thereof |
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| CN111477393A true CN111477393A (en) | 2020-07-31 |
| CN111477393B CN111477393B (en) | 2021-09-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299431A (en) * | 2021-05-21 | 2021-08-24 | 中天科技海缆股份有限公司 | Dynamic and static submarine cable and manufacturing method thereof |
| CN114530282A (en) * | 2021-12-20 | 2022-05-24 | 烽火海洋网络设备有限公司 | Cable type transition joint of submarine cables with different armor structures and online transition method thereof |
| WO2023099175A1 (en) * | 2021-11-30 | 2023-06-08 | Rwe Renewables Gmbh | Undersea cable system and method for laying an undersea cable system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299431A (en) * | 2021-05-21 | 2021-08-24 | 中天科技海缆股份有限公司 | Dynamic and static submarine cable and manufacturing method thereof |
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| WO2023099175A1 (en) * | 2021-11-30 | 2023-06-08 | Rwe Renewables Gmbh | Undersea cable system and method for laying an undersea cable system |
| CN114530282A (en) * | 2021-12-20 | 2022-05-24 | 烽火海洋网络设备有限公司 | Cable type transition joint of submarine cables with different armor structures and online transition 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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| CN111477393B (en) | 2021-09-28 |
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