CN203165553U - Direct-current submarine cable for flexible transmission - Google Patents
Direct-current submarine cable for flexible transmission Download PDFInfo
- Publication number
- CN203165553U CN203165553U CN 201320088122 CN201320088122U CN203165553U CN 203165553 U CN203165553 U CN 203165553U CN 201320088122 CN201320088122 CN 201320088122 CN 201320088122 U CN201320088122 U CN 201320088122U CN 203165553 U CN203165553 U CN 203165553U
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- CN
- China
- Prior art keywords
- direct current
- submarine cable
- direct
- flexible transmission
- current
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Abstract
The utility model discloses a direct-current submarine cable for flexible transmission. The direct-current submarine cable for flexible transmission is characterized by comprising two direct-current electric units, the two direct-current electric units are wrapped by a lining, gaps among the lining and the direct-current electric units are fully filled by filling strips, at least one flat armoring layer is arranged on the outer part of the lining and wrapped by an outer wrapping layer; the direct-current electric unit comprises a water-resistant conductor, an inner shielding layer, an insulating layer and an outer shielding layer which are sequentially arranged from inside to outside, the outer shielding layer is wrapped by a semi-conductive water-resistant tape, the semi-conductive water-resistant tape is sequentially wrapped by a lead housing and a jacket; and the insulating layer is made of direct-current cross-linked polyethylene, and the inner shielding layer and the outer shielding layer are made of a direct-current shielding material. The direct-current submarine cable has the following advantages that the direct-current electric units are used, thus the submarine cable is high in transmission efficiency and small in loss, the remote large-capacity transmission is facilitated, the current is easily adjusted, the power transmission direction is easily changed, the stability is high; and the submarine cable has longer service life than an alternative-current submarine cable.
Description
Technical field
The utility model relates to a kind of submarine cable, relates in particular to a kind of flexible transmission direct current submarine cable.
Background technology
China coastline is very long, and coastal have many island, big island such as Zhoushan Islands and Taiwan, Hainan for example, therefore, usually need be at the seabed cabling.The submarine cable that uses is to exchange submarine cable substantially at present, but exchanges the following problem of submarine cable ubiquity: the line loss when (1), transmission of electricity is big; (2), exchange submarine cable owing to be subjected to the restriction of transmission range, make it can't realize remote large capacity transmission; (3), the cost height, useful life is not long.
Summary of the invention
Technical problem to be solved in the utility model provides that a kind of line loss is little, the life-span is long and lay conveniently, cost-effective flexible transmission direct current submarine cable.
The utility model solves the problems of the technologies described above the technical scheme that adopts: flexible transmission direct current submarine cable, comprise two direct current unit, be surrounded with inner covering outside two described direct current unit, fill full packing in the formed space of described inner covering and described direct current unit, described inner covering is outside equipped with the flat armour of one deck at least, described flat armour is surrounded with the outer layer that drapes over one's shoulders outward, described direct current unit comprises the water-blocking conductor that sets gradually from inside to outside, internal shield, insulating barrier and outer shielding layer, described outer shielding layer is surrounded with the semiconductive waterstop outward, described semiconductive waterstop is disposed with plumbous cover and sheath outward, the material of described insulating barrier is the direct current crosslinked polyethylene, and the material of described internal shield and outer shielding layer is direct current shielding material.
Described inner covering comprises from inside to outside wrapped successively one deck binding strap and one deck PP rope, and this structure has increased the buffering effect of cable, is conducive to protect the direct current unit not damaged by armouring.
Described binding strap adopts special how imperial binding strap or viscosity binding strap.
The described outer layer that drapes over one's shoulders is double-deck PP rope.
Scribble pitch on the described flat armour, increased armour and draped over one's shoulders viscosity between the layer outward, also have antiseptic effect simultaneously.
Described flat armour is made up of zinc-plated magnadure flat wire or flat copper alloy silk.
Described flat armour is two-layer, makes torsional stress balance between the double armor layer.
Described inner covering and described direct current unit are provided with at least one light unit in the formed space, and described smooth unit is between described packing.
The material of described packing is PE, and the material of described sheath is medium density polyethylene (MDPE).
Compared with prior art, the utility model has the advantages that owing to adopt the direct current unit, make that transfer efficiency height, the line loss of this submarine cable are little, be conducive to remote large capacity transmission, and be easy to regulate electric current and change the power direction of transfer, stability is high; With exchange submarine cable and compare and have the longer life-span; In addition, because two direct current unit are incorporated in the cable, conveniently lay, save cost, also solved difficult problems such as stranding, armouring, retractable cable, improved the distribution quality of power supply; And armour adopts flat armour, and it need not the back twist device man-hour adding, and has solved the difficult point of the existing unequal power distribution of traditional circular armour.
Description of drawings
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
Embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
As shown in the figure, flexible transmission direct current submarine cable, comprise two direct current unit, be surrounded with inner covering 1 outside two direct current unit, fill full packing 2 and a light unit 3 in inner covering 1 and the formed space, direct current unit, light unit 3 is between packing 2, inner covering 1 is outside equipped with the flat armour 4 that one deck scribbles pitch, flat armour 4 is made up of zinc-magnesium aluminium alloy flat steel wire, drape over one's shoulders layer 5 outside flat armour 4 outer being surrounded with, the direct current unit comprises the water-blocking conductor 6 that sets gradually from inside to outside, internal shield 7, insulating barrier 8 and outer shielding layer 9, the material of insulating barrier 8 is the direct current crosslinked polyethylene, the material of internal shield 7 and outer shielding layer 9 is direct current shielding material, the outer shielding layer 9 outer semiconductive waterstops 10 that are surrounded with, semiconductive waterstop 10 outer plumbous cover 11 and the sheaths 12 of being disposed with.
In above-described embodiment, the material of packing 2 is PE, and the material of sheath 12 is MDPE; Flat armour 4 can be for two-layer, and zinc-magnesium aluminium alloy flat steel wire can substitute with flat copper alloy silk; Inner covering 1 comprises from inside to outside wrapped successively one deck binding strap and one deck PP rope, and binding strap can adopt special how imperial binding strap or viscosity binding strap; Drape over one's shoulders layer 5 outward and be double-deck PP rope.
Claims (8)
1. flexible transmission direct current submarine cable, it is characterized in that comprising two direct current unit, be surrounded with inner covering outside two described direct current unit, fill full packing in the formed space of described inner covering and described direct current unit, described inner covering is outside equipped with the flat armour of one deck at least, described flat armour is surrounded with the outer layer that drapes over one's shoulders outward, described direct current unit comprises the water-blocking conductor that sets gradually from inside to outside, internal shield, insulating barrier and outer shielding layer, described outer shielding layer is surrounded with the semiconductive waterstop outward, described semiconductive waterstop is disposed with plumbous cover and sheath outward, the material of described insulating barrier is the direct current crosslinked polyethylene, and the material of described internal shield and outer shielding layer is direct current shielding material.
2. flexible transmission as claimed in claim 1 direct current submarine cable is characterized in that described inner covering comprises from inside to outside wrapped successively one deck binding strap and one deck PP rope.
3. flexible transmission as claimed in claim 1 direct current submarine cable is characterized in that the described outer layer that drapes over one's shoulders is double-deck PP rope.
4. flexible transmission as claimed in claim 1 direct current submarine cable is characterized in that scribbling pitch on the described flat armour.
5. flexible transmission as claimed in claim 1 direct current submarine cable is characterized in that described flat armour is made up of zinc-plated magnadure flat wire or flat copper alloy silk.
6. flexible transmission as claimed in claim 1 direct current submarine cable is characterized in that described flat armour is two-layer.
7. flexible transmission as claimed in claim 1 direct current submarine cable is characterized in that being provided with at least one light unit in the formed space of described inner covering and described direct current unit, and described smooth unit is between described packing.
8. flexible transmission as claimed in claim 1 direct current submarine cable, the material that it is characterized in that described packing is PE, the material of described sheath is medium density polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088122 CN203165553U (en) | 2013-02-27 | 2013-02-27 | Direct-current submarine cable for flexible transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088122 CN203165553U (en) | 2013-02-27 | 2013-02-27 | Direct-current submarine cable for flexible transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165553U true CN203165553U (en) | 2013-08-28 |
Family
ID=49026718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320088122 Expired - Lifetime CN203165553U (en) | 2013-02-27 | 2013-02-27 | Direct-current submarine cable for flexible transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203165553U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123823A (en) * | 2013-02-27 | 2013-05-29 | 宁波东方电缆股份有限公司 | Direct-current submarine cable for flexible power transmission |
| CN104979040A (en) * | 2015-06-25 | 2015-10-14 | 芜湖扬宇机电技术开发有限公司 | Flexible power transmission undersea cable |
| WO2020237723A1 (en) * | 2019-05-27 | 2020-12-03 | 江苏亨通高压海缆有限公司 | Alternating-current and direct-current hybrid submarine cable for offshore wind power |
-
2013
- 2013-02-27 CN CN 201320088122 patent/CN203165553U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123823A (en) * | 2013-02-27 | 2013-05-29 | 宁波东方电缆股份有限公司 | Direct-current submarine cable for flexible power transmission |
| CN104979040A (en) * | 2015-06-25 | 2015-10-14 | 芜湖扬宇机电技术开发有限公司 | Flexible power transmission undersea cable |
| WO2020237723A1 (en) * | 2019-05-27 | 2020-12-03 | 江苏亨通高压海缆有限公司 | Alternating-current and direct-current hybrid submarine cable for offshore wind power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |