CN216250046U - Seawater-proof cable for offshore wind driven generator - Google Patents
Seawater-proof cable for offshore wind driven generator Download PDFInfo
- Publication number
- CN216250046U CN216250046U CN202122860924.7U CN202122860924U CN216250046U CN 216250046 U CN216250046 U CN 216250046U CN 202122860924 U CN202122860924 U CN 202122860924U CN 216250046 U CN216250046 U CN 216250046U
- Authority
- CN
- China
- Prior art keywords
- seawater
- layer
- offshore wind
- wind turbine
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a seawater-proof cable for an offshore wind turbine, which comprises: the power line, the conductor shielding layer, the insulating shielding layer, the metal shielding layer, the protective layer and the sheath layer; the power line is a tinned soft copper stranded conductor, the insulating layer is an ethylene propylene rubber part, the metal shielding layer is a metal mixed braiding layer, the protective layer is a single-side metal aluminum-plastic composite belt structure, and the sheath layer is a salt mist-resistant seawater-resistant rubber material. According to the utility model, the power line is coated by the conductor shielding layer, the insulating shielding layer, the metal shielding layer, the protective layer and the sheath layer, so that the power line is protected. Avoid the erosion of sea water through protective layer and restrictive coating, the restrictive coating is salt mist resistant and prevents sea water rubber material, improves the life of cable, avoids the electric leakage, improves the electricity generation security.
Description
Technical Field
The utility model relates to the technical field of electric power transportation, in particular to a seawater-proof cable for an offshore wind turbine.
Background
At present, with the development of science and technology, the human demand for electric power is increasing, and the types of electric power generation include wind power generation, water conservancy power generation, nuclear power generation, thermal power generation and other various forms. Among them, wind power generation has become one of the important ways of generating electricity from renewable resources worldwide. The sea wind resource has the characteristics of stability and large power generation capacity, so that the development of the sea wind power is rapid.
However, seawater and sea wind have certain corrosiveness, so the seawater easily erodes the seawater-proof cable for the offshore wind driven generator, and the power generation safety is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a seawater-proof cable for an offshore wind turbine, and aims to solve the problem of poor power generation safety.
In order to achieve the purpose, the seawater-proof cable for the offshore wind turbine comprises a power line, a conductor shielding layer, an insulating shielding layer, a metal shielding layer, a protective layer and a sheath layer from inside to outside;
the power line is a tinned soft copper stranded conductor, the insulating layer is an ethylene propylene rubber part, the metal shielding layer is a metal mixed braiding layer, the protective layer is a single-side metal aluminum-plastic composite belt structure, and the sheath layer is made of a salt mist-resistant seawater-resistant rubber material.
Preferably, the power line adopts a five-type tinned copper wire stranded structure.
Preferably, the insulating layer is a low-smoke halogen-free ultra-clean environment-friendly ethylene propylene rubber product.
Preferably, the metal shielding layer is of a mixed twisting and weaving structure of a galvanized low-carbon steel wire and a tinned metal copper wire, and the twisting ratio of the galvanized low-carbon steel wire to the tinned metal copper wire is 1: 7.
Preferably, the diameter of the galvanized low-carbon steel wire and the diameter of the tinned metal copper wire are 0.3 mm.
Preferably, the protective layer is a single-sided aluminum-plastic composite tape structure.
Preferably, the thickness of the single-sided aluminum-plastic composite belt is 0.25 mm.
Preferably, the sheath layer is formed by extruding and crosslinking salt-fog-resistant seawater-resistant rubber.
Preferably, the sea water preventing cable for the offshore wind turbine has an outer diameter of 55 mm.
Preferably, the power wire has a diameter of 12 mm.
According to the technical scheme, the power line is coated by the conductor shielding layer, the insulating shielding layer, the metal shielding layer, the protective layer and the sheath layer, so that the power line is protected. Avoid the erosion of sea water through protective layer and restrictive coating, the restrictive coating is salt mist resistant and prevents sea water rubber material, improves the life of cable, avoids the electric leakage, improves the electricity generation security. The power line is a tinned soft copper stranded conductor, so that the electric loss is small and the transmission power is high. The insulating layer is used for insulation, so that electric leakage or electricity connection is avoided, and the power generation safety is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure view of a seawater-proof cable for an offshore wind turbine according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
500 | |
| 200 | |
600 | |
| 300 | |
700 | |
| 400 | Insulating shielding layer |
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a seawater-proof cable for an offshore wind turbine.
Referring to fig. 1, in an embodiment of the present invention, a seawater-proof cable for an offshore wind turbine includes: power line 100, conductor shield 200, insulating layer 300, insulating shield 400, metal shield 500, protective layer 600 and jacket 700; the power line 100 is a tinned soft copper stranded conductor, the insulating layer 300 is an ethylene propylene rubber part, the metal shielding layer 500 is a metal mixed braided layer, the protective layer 600 is a single-side metal aluminum-plastic composite belt structure, and the sheath layer 700 is a salt mist-resistant seawater-resistant rubber material.
Specifically, the cable is buried in the sea bottom, and the power output by the wind driven generator is transmitted through the cable; the length of the cable is set according to the actual need. In the embodiment, the cable is applied to a wind driven generator with a rated voltage of 66 kV; it will be appreciated that the cable of the present invention may be applied to other voltage rated wind generators.
Further, the power line 100 adopts a five-type tinned copper wire stranded structure. The field of cables is divided into various categories, the power line 100 adopts a five-category tinned copper wire stranded structure, the winding density of the cable is increased, and the transmission attenuation is reduced.
Specifically, the power line 100 has a power line 100. In yet another embodiment of the present invention, power line 100 also employs a super five or six twisted wire pair configuration. The power of cable transmission is further improved and transmission attenuation is reduced through a higher-level twisted pair structure. Five types of tinned copper wire stranded structures are adopted in the embodiment, and both the economy and the applicability are considered.
The power line 100 structure adopts a multi-group tinned copper wire strand mixed bundle compound twisting structure, greatly improves the torsion resistance of a cable core, ensures the long service life of a power transmission unit of a cable product, and ensures that a tinned copper monofilament is not broken within thirty years of the use of a cable conductor.
Further, the insulating layer 300 is a low smoke halogen-free ultra-clean environment-friendly ethylene propylene rubber product. The insulating rubber prepared from the low-smoke halogen-free ultra-clean environment-friendly ethylene propylene rubber has excellent water-resisting and low-temperature performances, further avoids cable short circuit caused by seawater erosion, and improves the safety of power generation.
The ethylene propylene rubber used for the insulating layer 300 is a synthetic rubber using ethylene and propylene as main monomers, and has excellent ozone resistance, heat resistance, weather resistance and other aging resistance, good chemical resistance, electrical insulation performance, impact elasticity, low-temperature performance, low density, high filling property, hot water resistance, water vapor resistance and the like.
Specifically, the insulating layer 300 of the present invention is a low-smoke halogen-free material, which can reduce the toxic and corrosive gases generated during combustion. Can reduce the pollution to the ocean to the utmost extent and protect the environment. The insulating layer and the metal shielding layer 500 are designed in a three-layer co-extrusion structure, the insulating layer 300 can inhibit the generation of insulating electric trees and water trees in the use process of the cable, and the insulating property of the product is effectively improved.
Further, the metal shielding layer 500 is of a mixed twisting and weaving structure of a galvanized low-carbon steel wire and a tinned metal copper wire, and the twisting ratio of the galvanized low-carbon steel wire to the tinned metal copper wire is 1: 7. The metal shielding layer 500 woven by mixing and twisting in this ratio has an excellent shielding effect on the premise of sufficient strength.
In the utility model, the cable does not adopt a conventional 100-core externally-wound copper wire shielding or copper strip shielding structure of the power line, but adopts a low-carbon galvanized steel wire and tinned copper wire mixed twisting weaving structure. Not only can increase the dead weight stretch-proof ability when the cable is laid and is established the use, improved the resistant performance of twisting of cable core moreover, this kind of structural design can improve whole power generation system's ground connection security, avoids the cable to twist reverse the copper wire or the copper strips among the conventional cable structure of process and twists reverse the back fracture condition simultaneously, guarantees the thirty years life of cable.
Further, the diameters of the galvanized low-carbon steel wire and the tinned metal copper wire are 0.3 mm. The overall weight of the cable is reduced as much as possible on the premise of ensuring the strength of the metal shielding layer 500 by controlling the diameters of the galvanized low-carbon steel wire and the tinned metal copper wire.
Further, the protective layer 600 is a single-sided aluminum-plastic composite tape structure. The single-sided aluminum-plastic composite belt is formed by laminating an aluminum layer and a plastic layer and has excellent seawater input resistance.
Specifically, the protective layer 600 is used to prevent seawater erosion. The protective layer 600 of the utility model adopts a single-sided aluminum-plastic composite belt structure, the material is selected to not only increase the function of preventing seawater penetration of the whole cable, but also enhance the shielding effect of the whole metal shielding system, and the ideal shielding coefficient is not more than 0.8.
Further, the thickness of the single-sided aluminum-plastic composite belt is 0.25 mm. Protective layer 600 reduces the overall weight of the cable with adequate performance. The cable laying device is convenient for manual operation when cables are laid.
Further, the sheath layer 700 is formed by extruding and crosslinking salt-fog-resistant seawater-resistant rubber. The sheath layer 700 protects the cable from corrosion by seawater, improving the service life of the cable. The cable is in the practical application in-process outer sheath possess the wearability, can reduce the damage to insulating layer 300 to protection cable insulating layer 300's performance, the sheath still possesses salt fog resistant in addition, prevents that external adverse circumstances ability such as sea water is able to bear or endure, can not take place in the long-time use because of the sea water that external environment leads to, the salt fog corrosion ageing condition, improves product life.
Specifically, the salt-fog-resistant seawater-resistant rubber may be any one of chloroprene rubber or chlorosulfonated polyethylene rubber.
Further, the sea water preventing cable for the offshore wind turbine has an outer diameter of 55 mm. The cable has sufficient strength and transmission power and is convenient to lay.
Further, the diameter of the power wire 100 is 12 mm. The power line 100 at this diameter has sufficient transmission power to ensure stability of transmission.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A seawater-proof cable for an offshore wind turbine is characterized by comprising a power line, a conductor shielding layer, an insulating shielding layer, a metal shielding layer, a protective layer and a sheath layer from inside to outside;
the power line is a tinned soft copper stranded conductor, the insulating layer is an ethylene propylene rubber part, the metal shielding layer is a metal mixed braiding layer, the protective layer is a single-side metal aluminum-plastic composite belt structure, and the sheath layer is made of a salt mist-resistant seawater-resistant rubber material.
2. The seawater-resistant cable for the offshore wind turbine as set forth in claim 1, wherein the power line has a five-type tinned copper wire stranded structure.
3. The seawater-resistant cable for the offshore wind turbine as recited in claim 1, wherein the insulating layer is a low-smoke halogen-free ultra-clean environment-friendly ethylene propylene rubber product.
4. The seawater-resistant cable for the offshore wind turbine as recited in claim 1, wherein the metal shielding layer has a mixed-twisting braided structure of a galvanized low-carbon steel wire and a tinned metal copper wire, and a twisting ratio of the galvanized low-carbon steel wire to the tinned metal copper wire is 1: 7.
5. The seawater-resistant cable for an offshore wind turbine as claimed in claim 4, wherein the galvanized low-carbon steel wires and the tin-plated metallic copper wires have a diameter of 0.3 mm.
6. The seawater-resistant cable for the offshore wind turbine as claimed in any one of claims 1 to 5, wherein the protective layer has a single-sided aluminum-plastic composite tape structure.
7. The seawater-resistant cable for the offshore wind turbine as set forth in claim 6, wherein the single-sided aluminum-plastic composite tape has a thickness of 0.25 mm.
8. The seawater-resistant cable for the offshore wind turbine as claimed in any one of claims 1 to 5, wherein the sheath layer is formed by extruding and crosslinking salt-fog-resistant seawater-resistant rubber.
9. The seawater-proof cable for the offshore wind turbine as claimed in any one of claims 1 to 5, wherein the seawater-proof cable for the offshore wind turbine has an outer diameter of 55 mm.
10. The seawater-resistant cable for the offshore wind turbine according to any one of claims 1 to 5, wherein the diameter of the power line is 12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122860924.7U CN216250046U (en) | 2021-11-19 | 2021-11-19 | Seawater-proof cable for offshore wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122860924.7U CN216250046U (en) | 2021-11-19 | 2021-11-19 | Seawater-proof cable for offshore wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216250046U true CN216250046U (en) | 2022-04-08 |
Family
ID=80945931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122860924.7U Active CN216250046U (en) | 2021-11-19 | 2021-11-19 | Seawater-proof cable for offshore wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216250046U (en) |
-
2021
- 2021-11-19 CN CN202122860924.7U patent/CN216250046U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102969071B (en) | Submarine cable with increased current-carrying capacity | |
| CN216250046U (en) | Seawater-proof cable for offshore wind driven generator | |
| CN210429383U (en) | Ultraviolet-proof high-temperature-resistant seawater-corrosion-proof water-blocking loadable cable for ship | |
| CN215451005U (en) | D-type cable for high-power telecommunication equipment | |
| CN201788756U (en) | Power cable for frequency conversion system | |
| CN214671978U (en) | Anticorrosive tensile detection type submersible pump cable | |
| CN202134272U (en) | Profibus-DP bus cable used for ship and ocean engineering | |
| CN214253938U (en) | Novel wire cable | |
| CN214336405U (en) | Plastic insulation communication cable suitable for slurry environment | |
| CN210692140U (en) | Cold-resistant and anti-corrosion umbilical cable for moving underwater direct current system | |
| CN209912520U (en) | Medium-voltage variable-frequency power cable for ocean engineering | |
| CN209947496U (en) | Power cable for petroleum transportation ship | |
| CN201369192Y (en) | Offshore low-smoke zero-halogen slurry-resistant power cable | |
| CN205789187U (en) | A kind of direct current optical fiber composite submarine cable of bipolar transmission | |
| CN219591141U (en) | High-flexibility self-cooling high-voltage charging pile cable | |
| CN219610054U (en) | Salt-fog-resistant fully-sealed cable for offshore wind turbine | |
| CN213150409U (en) | Torsion-resistant low-smoke halogen-free offshore wind power cable | |
| CN217061494U (en) | Fluoroplastic insulation installation cable | |
| CN214336398U (en) | Plastic insulation power cable suitable for slurry environment | |
| CN215868732U (en) | Marine control cable | |
| CN218455982U (en) | Cold-resistant anti-torsion flame-retardant cable for wind power generation | |
| CN212461170U (en) | Insulating tin-plated copper stranded wire | |
| CN219512856U (en) | Cable containing carbon fiber composite core | |
| CN212392055U (en) | High-voltage torsion-resistant cable for offshore wind generating set with rated voltage of 35kV | |
| CN216623811U (en) | Carbon fiber composite core aluminum alloy stranded wire wind energy tower cylinder cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |