CN117352210A - Vertical anti-slip cable for wind power generation system and preparation method thereof - Google Patents
Vertical anti-slip cable for wind power generation system and preparation method thereof Download PDFInfo
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- CN117352210A CN117352210A CN202311496269.9A CN202311496269A CN117352210A CN 117352210 A CN117352210 A CN 117352210A CN 202311496269 A CN202311496269 A CN 202311496269A CN 117352210 A CN117352210 A CN 117352210A
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- Prior art keywords
- layer
- cable
- slip
- wind power
- power generation
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- 238000010248 power generation Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 79
- 239000004020 conductor Substances 0.000 claims abstract description 37
- 238000001125 extrusion Methods 0.000 claims abstract description 34
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 239000011241 protective layer Substances 0.000 claims abstract description 22
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 238000005260 corrosion Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000007788 roughening Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01B13/02—Stranding-up
-
- 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
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- 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
- H01B7/02—Disposition of insulation
-
- 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
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to a vertical anti-sliding cable for a wind power generation system and a preparation method thereof, comprising the following steps: a conductor; the co-extrusion insulating layer is laid on the outer side of the conductor; the sheath layer is laid on the outer side of the co-extrusion insulating layer; the fiber reinforcement layer is laid on the outer side of the sheath layer; the anti-slip protective layer is laid on the outer side of the fiber reinforced layer, and a circle of protrusions are arranged on the outer surface of the anti-slip protective layer along the circumferential direction of the conductor. According to the invention, the circle of protrusions are arranged on the outer surface of the anti-sliding protective layer, so that sliding can be effectively resisted, and the reliability of the cable and the operation efficiency of a wind power generation system are improved. And when the clamp is too tight, the bulge can relieve a part of pressure, and even if deformation occurs, the clamp pressure can not be transmitted to the insulating layer, so that the electrical performance of the cable is ensured, and the stability of vertical laying of the cable is better ensured. The fiber reinforcement layer of this application can improve the tear resistance of cable, promptly at the anti-slip sheath because of anchor clamps too tight after leading to the damage, the breach of sheath layer can not continue to expand.
Description
Technical Field
The invention relates to the technical field of cable structures, in particular to a vertical anti-sliding cable for a wind power generation system and a preparation method thereof.
Background
With the increasing prominence of energy and environmental issues, the development of renewable energy sources is receiving more and more attention. The wind power generation is used as a renewable energy source, has the advantages of cleanness, high efficiency, sustainability and the like, and is widely applied and popularized. In wind power generation systems, power cables are important equipment for connecting wind power generators to the grid, typically laid vertically. However, under a changeable wind power environment, the problem of cable sliding often occurs, so that the power transmission efficiency is reduced, even safety accidents are caused, and the laying difficulty is increased. Therefore, the vertical anti-slip power cable capable of resisting slip and improving the power transmission efficiency is developed, and has important significance for the stable operation of a wind power generation system.
The cables in the wind power tower are generally laid vertically, and the laying height is more than 100 meters. Currently, a cable is fixed by adopting a clamp, a wire bundle, a binding mode and the like. The cable not only needs to overcome the conductor slipping problem caused by self gravity, but also ensures that the slipping phenomenon is not generated between the cable and the clamp or the binding belt, the clamp is too tight, the sheath layer is damaged, the insulating layer is even damaged, and the cable breaks down due to long-term operation. After laying, not only is maintenance often carried out, but also running risks are involved. And poor tear resistance.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the above problems in the prior art.
In order to solve the above technical problems, in one aspect, the present invention provides a vertical anti-slip cable for a wind power generation system, including:
a conductor;
the co-extrusion insulating layer is laid on the outer side of the conductor;
the sheath layer is laid on the outer side of the co-extrusion insulating layer;
the fiber reinforcement layer is laid on the outer side of the sheath layer; the anti-slip protective layer is laid on the outer side of the fiber reinforced layer, and a circle of protrusions are arranged on the outer surface of the anti-slip protective layer along the circumferential direction of the conductor.
In one embodiment of the invention, the protrusions are in a tooth-like structure.
In one embodiment of the invention, the ratio of pitch to tooth height of the tooth form structure is 1:0.9 to 1.1:0.9.
in one embodiment of the invention, the present application further includes a corrosion protection layer applied to the outside of the jacket layer.
In one embodiment of the invention, the present application further comprises a waterproof layer applied between the fiber-reinforced layer and the corrosion-resistant sheath.
In one embodiment of the invention, the application further includes an optical cable, which is laid outside the anti-corrosive sheath and is encased by the waterproof layer.
In one embodiment of the invention, the optical cable is N, N is an integer from 1 to 3.
In one embodiment of the invention, the anti-slip jacket is prepared using an extrusion process.
In one embodiment of the invention, the conductors are two twisted pairs of bare conductors.
On the other hand, the invention provides a preparation method of the vertical anti-slip cable for the wind power generation system, which comprises the following steps:
processing a conductor and twisting the conductor;
roughening, namely, before winding the conductor after finishing twisting, enabling the conductor to enter sand blasting equipment for roughening; extruding the co-extrusion insulating layer and the sheath layer by adopting co-extrusion equipment in an extrusion mode, and then performing high-temperature and high-pressure treatment on the co-extrusion insulating layer and the sheath layer through a vulcanization pipeline;
the anti-slip protective layer and the fiber reinforcement layer are extruded, and extrusion pressure is increased during extrusion so that the fiber reinforcement layer and the anti-slip protective layer are tightly combined.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the vertical anti-sliding cable for the wind power generation system and the preparation method thereof, the circle of protrusions are arranged on the outer surface of the anti-sliding protective layer, so that the roughness of the surface of the cable can be increased, the cable is not smooth, the contact pressure between the cable and the fixing clamp is increased, the friction force is increased, the anti-sliding effect is finally achieved, and the slipping situation between the cable and the clamp is solved. Secondly, the bulge can also play a role in pressure buffering to prevent the cable from being damaged by the overtightening of the clamp. And when the clamp is too tight, the bulge can relieve a part of pressure, and the clamp pressure cannot be transmitted to the insulating layer even if the bulge is deformed, so that the electrical performance of the cable is ensured, and the stability of vertical laying of the cable is better ensured. Therefore, the embodiment can effectively resist sliding, and the reliability of the cable and the operation efficiency of the wind power generation system are improved. In addition, this application has still set up the fibre enhancement layer between restrictive coating and anti-sliding sheath, and the fibre enhancement layer can improve the anti tearing ability of cable, leads to the damage back because of anchor clamps too tightly at anti-sliding sheath promptly, and the breach of restrictive coating can not continuously expand.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
Fig. 1 is a schematic view of a vertical anti-slip cable for a wind power generation system according to a preferred embodiment of the present invention.
Description of the specification reference numerals: 100. a conductor;
200. co-extruding an insulating layer;
300. a sheath layer;
400. a fiber reinforced layer;
500. an anti-slip protective layer; 510. a protrusion;
600. an anti-corrosion protective layer;
700. a waterproof layer;
800. an optical cable.
Detailed Description
The invention will be further described in connection with the accompanying drawings and specific examples which are set forth so that those skilled in the art will better understand the invention and will be able to practice it, but the examples are not intended to be limiting of the invention.
Referring to fig. 1, in one aspect, the present invention provides a vertical anti-slip cable for a wind power generation system, comprising:
a conductor 100;
a co-extrusion insulating layer 200 laid on the outer side of the conductor 100;
a sheathing layer 300 laid on the outside of the co-extrusion insulating layer 200;
a fiber reinforcement layer 400 laid on the outer side of the sheathing layer 300; the fiber reinforced layer 400 is an aramid woven structure;
the anti-slip coating 500 is applied to the outside of the fiber reinforcement 400, and a ring of protrusions 510 is provided on the outer surface of the anti-slip coating 500 along the circumference of the conductor 100.
Specifically, the outer surface of the anti-sliding sheath 500 is provided with a circle of protrusions 510, so that the roughness of the cable surface can be increased, the cable is not smooth, the contact pressure between the cable and the fixing clamp is increased, the friction force is increased, the anti-sliding effect is finally achieved, and the slipping between the cable and the clamp is solved. Second, the protrusions 510 also act as a pressure buffer to prevent the clamp from over-tightening to damage the cable. Again, when the clamp is too tight, the protrusion 510 can relieve a portion of the pressure, and even if deformed, the clamp pressure is not transferred to the insulating layer, so that the electrical performance of the cable is ensured, and the stability of vertical laying of the cable is better ensured. Therefore, the embodiment can effectively resist sliding, and the reliability of the cable and the operation efficiency of the wind power generation system are improved. In addition, the fiber reinforced layer 400 is further arranged between the sheath layer 300 and the anti-sliding sheath 500, and the fiber reinforced layer 400 can improve the tearing resistance of the cable, namely, after the anti-sliding sheath 500 is damaged due to too tight clamp, the crack of the sheath layer 300 cannot be continuously expanded.
Further, the protrusions 510 are of a tooth-shaped structure. The ratio of the tooth pitch to the tooth height of the tooth-shaped structure is 1:0.9 to 1.1:0.9. specifically, if the ratio of the tooth pitch to the tooth height is too low, the preparation difficulty is high, and the anti-slip performance is insufficient when the ratio is too high; by combining the difficulty, cost and anti-slip effect of the preparation process, the ratio of the tested tooth pitch to the tooth height is 1:0.9 to 1.1:0.9.
in some embodiments, the protrusions 510 of different tooth heights may be designed according to the cable specification and thickness of the anti-slip jacket 500.
Further, the present application further includes a waterproof layer 700 applied to the anti-corrosive protective layer 600 outside the protective layer. Specifically, the anti-corrosion sheath 600 can perform an anti-corrosion function, further improving the service life of the cable.
Further, the present application also includes a waterproof layer 700 applied between the fiber reinforced layer and the corrosion protection layer 600. Specifically, the waterproof layer 700 plays a role in waterproof, improving the waterproof performance of the cable.
Further, the present application further includes an optical cable 800, where the optical cable 800 is laid outside the anti-corrosion protection layer 600 and is covered by the waterproof layer 700. The number of optical cables 800 is N, and N is an integer of 1 to 3. In some embodiments, the N fiber optic cables 800 are equally disposed circumferentially.
Further, the anti-slip sheath 500 is prepared using an extrusion process.
Further, the conductors 100 are two twisted pairs of bare conductors 100.
On the other hand, the invention provides a preparation method of the vertical anti-slip cable for the wind power generation system, which comprises the following steps:
processing the conductor 100, twisting the conductor 100;
roughening, namely, before taking up the conductor 100 after twisting, enabling the conductor 100 to enter sand blasting equipment for roughening; the roughening treatment can increase the surface friction of the conductor 100, so that the conductor 100 and the co-extrusion insulating layer 200 are better attached, and the insulating effect is improved.
The co-extrusion insulating layer 200 and the sheath layer 300 are extruded by adopting co-extrusion equipment in an extrusion mode, and then the co-extrusion insulating layer 200 and the sheath layer 300 are subjected to high-temperature and high-pressure treatment of a vulcanization pipeline; the co-extruded insulating layer 200 and the sheath layer 300 can be tightly combined with the conductor 100, so that the surface rounding and homogenization of the insulating surface electric field of the co-extruded insulating layer 200 after extrusion can be ensured, and the breakdown risk is reduced, thereby reducing the slip risk of the conductor 100 (the problem of cable breakdown caused by sharp corners generated during rough treatment of the conductor 100 to cause point discharge).
The anti-slip sheath 500 and the fiber reinforcement 400 are extruded, and the extrusion pressure is increased during extrusion to tightly bond the fiber reinforcement 400 and the anti-slip sheath 500. The fiber-reinforced layer 400 can improve the tear resistance of the cable, i.e., the breach of the jacket layer 300 does not continue to expand after the anti-slip jacket 500 is damaged by the over-tightening of the clamps.
Because the anti-sliding protective layer needs to adopt a special die to increase a tooth structure on the surface of the protective layer, the conventional extrusion die does not meet the production requirement and needs to be redesigned. The original extrusion die core die sleeve is improved on the basis of meeting the tooling of the original extrusion equipment die head die, and the round hole of the original die core die sleeve is designed into a hole-shaped structure of the tooth-shaped groove.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious changes and modifications which are extended therefrom are still within the scope of the invention.
Claims (10)
1. A vertical anti-slip cable for a wind power generation system is characterized in that: comprising the following steps:
a conductor;
a co-extrusion insulating layer laid on the outer side of the conductor;
the sheath layer is laid on the outer side of the co-extrusion insulating layer;
a fiber reinforcement layer laid on the outer side of the sheath layer; and the anti-slip protective layer is laid on the outer side of the fiber reinforced layer, and a circle of protrusions are arranged on the outer surface of the anti-slip protective layer along the circumferential direction of the conductor.
2. The vertical anti-slip cable for a wind power generation system according to claim 1, wherein: the protrusions are of tooth-shaped structures.
3. The vertical anti-slip cable for a wind power generation system according to claim 2, wherein: the ratio of the tooth pitch to the tooth height of the tooth-shaped structure is 1:0.9 to 1.1:0.9.
4. the vertical anti-slip cable for a wind power generation system according to claim 1, wherein: the anti-corrosion protective layer is laid on the outer side of the protective sleeve layer.
5. The vertical anti-slip cable for a wind power generation system according to claim 4, wherein: the waterproof layer is laid between the fiber reinforced layer and the anti-corrosion protective layer.
6. The vertical anti-slip cable for a wind power generation system according to claim 5, wherein: the optical cable is laid outside the anti-corrosion protective layer and is wrapped by the waterproof layer.
7. The vertical anti-slip cable for a wind power generation system according to claim 6, wherein: the number of the optical cables is N, and N is an integer of 1-3.
8. The vertical anti-slip cable for a wind power generation system according to claim 1, wherein: the anti-slip protective layer is prepared by adopting an extrusion process.
9. The vertical anti-slip cable for a wind power generation system according to claim 1, wherein: the conductors are two kinds of stranded bare conductors.
10. A preparation method of a vertical anti-slip cable for a wind power generation system is characterized by comprising the following steps of: comprising the following steps:
processing a conductor and twisting the conductor;
roughening, namely, before winding the conductor after finishing twisting, enabling the conductor to enter sand blasting equipment for roughening; extruding the co-extrusion insulating layer and the sheath layer by adopting co-extrusion equipment in an extrusion mode, and then performing high-temperature and high-pressure treatment on the co-extrusion insulating layer and the sheath layer through a vulcanization pipeline;
the anti-slip protective layer and the fiber reinforcement layer are extruded, and extrusion pressure is increased during extrusion so that the fiber reinforcement layer and the anti-slip protective layer are tightly combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311496269.9A CN117352210A (en) | 2023-11-10 | 2023-11-10 | Vertical anti-slip cable for wind power generation system and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311496269.9A CN117352210A (en) | 2023-11-10 | 2023-11-10 | Vertical anti-slip cable for wind power generation system and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117352210A true CN117352210A (en) | 2024-01-05 |
Family
ID=89355853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311496269.9A Pending CN117352210A (en) | 2023-11-10 | 2023-11-10 | Vertical anti-slip cable for wind power generation system and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117352210A (en) |
-
2023
- 2023-11-10 CN CN202311496269.9A patent/CN117352210A/en active Pending
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