CN203055533U - A cross linked polyethylene insulating high-voltage DC submarine power cable - Google Patents
A cross linked polyethylene insulating high-voltage DC submarine power cable Download PDFInfo
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- CN203055533U CN203055533U CN 201220738468 CN201220738468U CN203055533U CN 203055533 U CN203055533 U CN 203055533U CN 201220738468 CN201220738468 CN 201220738468 CN 201220738468 U CN201220738468 U CN 201220738468U CN 203055533 U CN203055533 U CN 203055533U
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Abstract
The utility model relates to a DC cable and especially relates to a high-voltage DC submarine power cable. The cross linked polyethylene insulating high-voltage DC submarine power cable comprises a conductor (1). The conductor (1) comprises an inner semiconductor electric shielding layer (2), an insulating layer (3), an outer semiconductor electric shielding layer (4), a semi-conductive buffer layer (5), a metal sheath layer (6), an inner sheath layer (7), a metal armor layer (9), and an outer covering layer (10) from inside to outside. Compared with a product in the prior art, the high-voltage DC submarine power cable has advantages that the insulating layer is prepared by super clean cross linked polyethylene high-voltage DC insulating material mixing with 1 percent MH, that generation of space charges is well suppressed, that high-voltage DC submarine power cable with long length and long distance can be produced, and that electrical conditions of high-voltage DC transmission security operation can be satisfied.
Description
Technical field
The utility model relates to a kind of direct current cables, relates in particular to a kind of high voltage direct current sea electric power cable.
Background technology
Big length sea electric power cable develops so far, and the history, particularly recent two decades of existing nearly half a century is come, and various countries are accumulating many experiences aspect manufacturing and the operation.Characteristics of MODERN SEAFLOOR technology of transmission of electricity are short-term road ac transmission, and the above overlength circuit of tens of kilometers then adopts direct current transportation.High voltage direct current transmission is a new technology of electric power transmission, is intended to improve the efficient of long distance power transmission.According to one's analysis, transmission line is more long, can reflect that more direct current sea cable is in technology, economically superiority.Because the Electric Field Distribution in the AC and DC cable insulation is completely different, so can not easily ac cable be used as direct current transportation.
The utility model content
Technique effect of the present utility model can overcome above-mentioned defective, and a kind of crosslinked polyetylene insulated high voltage direct current sea electric power cable is provided, and it can improve the power transmission efficiency of submarine cable.
For achieving the above object, the utility model adopts following technical scheme: it comprises conductor, semi-conductor electricity screen, insulating barrier, outer semiconductor electric screen layer, semi-conductive buffer layer, metal sheath layer, inner restrictive coating, metal armouring layer, serving in conductor wraps up from inside to outside successively.
Conductor is arranged on the cable penetralia, transferring electric power, the inner every layer of stranded waterproof construction that all adopts of described conductor.Out semiconductor layer all adopts ultra-smooth high voltage direct current shielding material in described.
Inside and outside each the wrapped one deck of metal armouring layer floods polyacrylic wrapped rope.Insulating barrier adopts super clean cross-linked polyethylene insulating material.
The super clean crosslinked polyethylene high voltage direct current Insulation Material that described insulating layer material adopts has lower average field-strength, the average field-strength of this high voltage direct current cable control insulating barrier is about 15kV/mm, satisfy the electric condition of cable running safety, suppress space charge effectively and produce.
Described semi-conductive buffer layer adopts the semiconductive expansion water strip.
The material of described metallic sheath adopts extrudes the plumbous cover of alloy, effectively plays radially resistance effect.
Metal sheath layer and polyethylene inner restrictive coating adopt the mode of extruding to combine closely as the comprehensive waterproof layer of cable.
Polyethylene inner sheath, this pe sheath are coated on outside the above-mentioned water blocking layer (alloy plumbous cover), and overlap tight combination with lead, when avoiding plumbous cover to scratch with it jointly as the comprehensive waterproof layer of cable.
Described metal armouring material is special-purpose seawater corrosion resistance zinc-coated wire.
Wrapped one deck floods polyacrylic wrapped rope in the metal armouring layer, and the outer wrapped one deck of metal armouring layer floods polyacrylic serving, and wrapped rope is identical with the material of serving, plays buffering, corrosion-resistant effect.
The inside and outside wrapped wrapped rope of metal armouring layer and its, serving around to being same direction.
Described serving material is the dipping polypropylene material, the wrapped rope of dipping polypropylene below metal armouring layer and armour, and employing stranded in the same way technology is synchronously produced.
High voltage direct current sea electric power cable of the present utility model is compared with prior art, its advantage is, insulating barrier of the present utility model adopts the super clean crosslinked polyethylene high voltage direct current Insulation Material that is mixed with 1%MH to make, can suppress the generation of space charge well, can produce the remote high voltage direct current sea electric power cable of big length, satisfy the electric condition of high voltage direct current transmission security operation.
Description of drawings
Fig. 1 is the utility model cable internal structure schematic diagram.
Among the figure: 1. conductor; 2. interior semi-conductor electricity screen; 3. insulating barrier; 4. outer semiconductor electric screen layer; 5. semi-conductive buffer layer; 6. metal sheath layer; 7. inner restrictive coating; 8. wrapped rope; 9. metal armouring layer; 10. serving.
Embodiment
Below in conjunction with the drawings and specific embodiments this utility model is described in detail:
Crosslinked polyetylene insulated high voltage direct current sea electric power cable of the present utility model comprises conductor 1, semi-conductor electricity screen 2, insulating barrier 3, outer semiconductor electric screen layer 4, semi-conductive buffer layer 5, metal sheath layer 6, inner restrictive coating 7, metal armouring layer 9, serving 10 in conductor 1 wraps up from inside to outside successively.
Wrapped one deck floods polyacrylic wrapped rope 8 in the metal armouring layer 9, and metal armouring layer 9 outer wrapped one deck flood polyacrylic serving 10.Metal armouring layer 9 and its inside and outside wrapped wrapped rope 8, serving 10 around to being same direction.Metal sheath layer 6 adopts the mode of extruding to combine closely as the comprehensive waterproof layer of cable with polyethylene inner restrictive coating 7.
Insulating barrier 3 adopts super clean cross-linked polyethylene insulating material.Semi-conductive buffer layer 5 adopts the semiconductive expansion water strip.Metal sheath layer 6 adopts extrudes the plumbous cover of alloy.Metal armouring layer 9 adopts the seawater corrosion resistance zinc-coated wire.
Claims (5)
1. crosslinked polyetylene insulated high voltage direct current sea electric power cable, comprise conductor (1), it is characterized in that semi-conductor electricity screen (2), insulating barrier (3), outer semiconductor electric screen layer (4), semi-conductive buffer layer (5), metal sheath layer (6), inner restrictive coating (7), metal armouring layer (9), serving (10) in conductor (1) wraps up from inside to outside successively.
2. crosslinked polyetylene insulated high voltage direct current sea electric power cable according to claim 1 is characterized in that, the inner every layer of stranded waterproof construction that all adopts of conductor (1).
3. crosslinked polyetylene insulated high voltage direct current sea electric power cable according to claim 1 is characterized in that, metal sheath layer (6) adopts the mode of extruding to combine closely as the comprehensive waterproof layer of cable with polyethylene inner restrictive coating (7).
4. crosslinked polyetylene insulated high voltage direct current sea electric power cable according to claim 1, it is characterized in that, wrapped one deck floods polyacrylic wrapped rope (8) in the metal armouring layer (9), and the outer wrapped one deck of metal armouring layer (9) floods polyacrylic serving (10).
5. crosslinked polyetylene insulated high voltage direct current sea electric power cable according to claim 4 is characterized in that, metal armouring layer (9) and its inside and outside wrapped wrapped rope (8), serving (10) around to being same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738468 CN203055533U (en) | 2012-12-28 | 2012-12-28 | A cross linked polyethylene insulating high-voltage DC submarine power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738468 CN203055533U (en) | 2012-12-28 | 2012-12-28 | A cross linked polyethylene insulating high-voltage DC submarine power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055533U true CN203055533U (en) | 2013-07-10 |
Family
ID=48738461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738468 Expired - Lifetime CN203055533U (en) | 2012-12-28 | 2012-12-28 | A cross linked polyethylene insulating high-voltage DC submarine power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092968A (en) * | 2019-05-06 | 2019-08-06 | 山东虎力机械有限公司 | A kind of high stability water-proof cable |
-
2012
- 2012-12-28 CN CN 201220738468 patent/CN203055533U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092968A (en) * | 2019-05-06 | 2019-08-06 | 山东虎力机械有限公司 | A kind of high stability water-proof cable |
| CN110092968B (en) * | 2019-05-06 | 2021-08-10 | 珠海中盛电线电缆有限责任公司 | High-stability waterproof cable |
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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 |
Granted publication date: 20130710 |
|
| CX01 | Expiry of patent term |