CN220895230U - Anti-fatigue cable for offshore wind turbine - Google Patents
Anti-fatigue cable for offshore wind turbine Download PDFInfo
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- CN220895230U CN220895230U CN202322460067.0U CN202322460067U CN220895230U CN 220895230 U CN220895230 U CN 220895230U CN 202322460067 U CN202322460067 U CN 202322460067U CN 220895230 U CN220895230 U CN 220895230U
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- Prior art keywords
- wind turbine
- cable
- offshore wind
- core wire
- fatigue
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- 230000002929 anti-fatigue Effects 0.000 title claims abstract description 21
- 239000004760 aramid Substances 0.000 claims abstract description 20
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 20
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- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
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- 239000004065 semiconductor Substances 0.000 claims abstract description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 239000004677 Nylon Substances 0.000 claims abstract description 4
- 229920001778 nylon Polymers 0.000 claims abstract description 4
- 239000010409 thin film Substances 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims description 18
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000000806 elastomer Substances 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 8
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 claims description 7
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- Insulated Conductors (AREA)
Abstract
The utility model relates to an anti-fatigue cable for an offshore wind turbine, which comprises the following components: the thin film layer, the inner sheath, the semiconductor non-woven fabric, the woven layer, the non-woven fabric and the outer sheath are sequentially arranged from inside to outside; the novel nylon yarn is characterized in that a first core wire and an aramid yarn which are positioned on the same circumference are arranged in the film layer, a second core wire which is positioned on the same circumference is arranged in the first core wire and the aramid yarn, a woven fiber rope is filled in the second core wire which is positioned on the same circumference, and the film layer is made of an expanded PTFE film. The anti-fatigue cable for the offshore wind turbine, disclosed by the utility model, has the advantages that the selection of high-quality materials meets various severe natural environment conditions at sea, the excellent product structural design ensures that the cable keeps a good working state under frequent rotation of the intelligent wind turbine, the development in the offshore wind power field can be better developed, the economic benefit is increased, various severe conditions at sea are met, and meanwhile, the cable can also keep a good working state under frequent rotation.
Description
Technical Field
The utility model relates to the technical field of cable production and manufacturing, in particular to an anti-fatigue cable for an offshore wind turbine.
Background
Wind power technology is the fastest-growing green energy technology in the world, and wind power can be an important energy source for sustainable development in China along with the development and maturity of offshore wind power technology. With the technological progress, the intelligent fan product which can sense, think, self-learn, judge and decide can further promote the energy capture of the fan, and the matched cable product also needs to meet the frequent bending and twisting motions.
The manufacturing standard of the wind power cable is basically formulated according to the European Union rubber sleeve cable standard or a sample of foreign enterprises. The main structural form of the cable is as follows: the 5 th soft copper stranded conductor is insulated by ethylene propylene rubber and is sheathed by chlorinated polyethylene. The cables used in the wind field mainly comprise rubber insulation power cables, rubber insulation control cables, plastic insulation power cables, overhead conductors, optical cables, copper wire rows, aluminum wire rows and the like.
At present, china patent with the application number of CN200720131863.8 discloses a special cable for a wind driven generator, wherein a cable core is formed by extruding and wrapping an insulating layer with a conductor, a bearing reinforcing layer is coated outside the cable core, and an outer sheath layer is arranged on the outer surface of the cable; the conductor is a annealed copper wire, adopts a plurality of strands of thin copper wires to be twisted and twisted again, and has the same-direction structural form of strand twisting and twisted again; the insulating layer is made of ethylene-propylene rubber insulating material; the bearing reinforcing layer adopts fiber yarn braiding materials; the outer sheath layer is a rubber sheath layer.
However, the cable is often subjected to various tensile forces and torsion, and the materials of the cable have certain fatigue resistance, so that the service life of the cable with the structure is still shorter under the condition of frequent external force damage, and quality problems such as broken wires and the like are generated in the use process.
Therefore, there is a need to continuously improve the quality of the cable to solve the technical problem.
Disclosure of utility model
Therefore, the utility model aims to solve the technical problems of poor fatigue resistance and easy cable breakage caused by limited material and structure design of the cable in the prior art.
In order to solve the technical problems, the utility model provides an anti-fatigue cable for an offshore wind turbine, which comprises the following components: the thin film layer, the inner sheath, the semiconductor non-woven fabric, the woven layer, the non-woven fabric and the outer sheath are sequentially arranged from inside to outside; the novel nylon yarn is characterized in that a first core wire and an aramid yarn which are positioned on the same circumference are arranged in the film layer, a second core wire which is positioned on the same circumference is arranged in the first core wire and the aramid yarn, a woven fiber rope is filled in the second core wire which is positioned on the same circumference, and the film layer is made of an expanded PTFE film.
In one embodiment of the present utility model, the first and second core wires are identical in structure, and each of the first and second core wires includes an insulator and a conductor.
In one embodiment of the utility model, the conductors are class 6 conductors.
In one embodiment of the present utility model, the insulator is made of thermoplastic polyester elastomer TPEE.
In one embodiment of the present utility model, the number of the second core wires is 6, and the 6 second core wires are stranded.
In one embodiment of the present utility model, the number of the first core wires is 9, and the first core wires are twisted.
In one embodiment of the present utility model, the number of the aramid yarns is 3, and the 3 aramid yarns are arranged in an annular array, the aramid yarns dividing 9 core wires into 3 groups.
In one embodiment of the present utility model, the material of the inner sheath is thermoplastic polyurethane elastomer TPU.
In one embodiment of the present utility model, the material of the braid is tinned copper wire, and the braid and the semiconductor non-woven fabric form a shielding layer.
In one embodiment of the present utility model, the material of the outer sheath is polyether thermoplastic polyurethane elastomer TPU.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
The anti-fatigue cable for the offshore wind turbine, disclosed by the utility model, has the advantages that the selection of high-quality materials meets various severe natural environment conditions at sea, the excellent product structural design ensures that the cable keeps a good working state under frequent rotation of the intelligent wind turbine, the development in the offshore wind power field can be better developed, the economic benefit is increased, various severe conditions at sea are met, and meanwhile, the cable can also keep a good working state under frequent rotation.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a cross-sectional view of an anti-fatigue cable for an offshore wind turbine of the present utility model;
Fig. 2 is a cross-sectional view of the first core wire or first core wire of the present utility model.
Description of the specification reference numerals: film layer 1, inner sheath 2, semi-conductive non-woven fabrics 3, weaving layer 4, non-woven fabrics 5, outer sheath 6, core wire one 7, insulator 71, conductor 72, aramid yarn 8, core wire two 9, weaving fiber rope 10.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1, the anti-fatigue cable for offshore wind turbine of the present utility model comprises: the device comprises a film layer 1, an inner sheath 2, a semiconductor non-woven fabric 3, a woven layer 4, a non-woven fabric 5 and an outer sheath 6 which are sequentially arranged from inside to outside; the novel nylon yarn is characterized in that a first core wire 7 and an aramid yarn 8 which are positioned on the same circumference are arranged in the film layer 1, the first core wire 7 and the aramid yarn 8 which are adjacent are in contact with each other, a second core wire 9 which is positioned on the same circumference is arranged in the first core wire 7 and the aramid yarn 8, the second core wire 9 which is adjacent is in contact with each other, a woven fiber rope 10 is filled in the second core wire 9 which is positioned on the same circumference, and the film layer 1 is made of an expanded PTFE film. The expanded PTFE film is coated on the outer layer of the cable, the film is produced by the foaming process, the use cost is reduced, the film has excellent flame retardance, the appearance is very soft and smooth, the friction between the core wire and the inner sheath wall is greatly reduced in the movement process of the cable, the stress of the insulating core wire is reduced, and the service life of the product is prolonged.
The anti-fatigue cable for the offshore wind turbine is produced in a 100% back-twist mode, stress between the inner parts of the core wires is completely released, and the inner structure is not changed even if the cable is influenced by external force. The braiding fiber rope 10 is added in the middle, flexible fiber filaments are stranded into the fiber rope and then are processed by a braiding machine to form the braiding fiber rope, so that the roundness and compactness of wires are improved, friction is reduced, and the bending fatigue resistance of the cable is greatly improved.
The anti-fatigue cable for the offshore wind turbine can meet the following test requirements through related tests: see table below
Referring to fig. 2, the first core wire 7 and the second core wire 9 have the same structure, and the first core wire 7 and the second core wire 9 each include an insulator 71 and a conductor 72, the insulator 71 being wrapped around the outside of the conductor 72.
In the above structure, the conductor 72 is a 6-class conductor. The conductor is formed by twisting 6 types of hyperfine bare copper wires together with a fiber wire reinforcing part at the center of the hyperfine bare copper wires at a small pitch smaller than 10 times of the outer diameter of the conductor, and the conductor has smooth and round surface, high overall softness and certain tensile property.
In the above structure, the insulator 71 is made of thermoplastic polyester elastomer TPEE. TPEE is also known as polyester rubber, and combines the excellent elasticity of rubber with the easy processability of thermoplastics. The material has the comprehensive properties of outstanding mechanical strength, excellent bending fatigue resistance, excellent instantaneous high-temperature performance, excellent low-temperature impact resistance, excellent electrical performance, excellent chemical resistance and weather resistance, good tear resistance, wear resistance and the like.
In the above structure, the number of the second core wires 9 is 6, and the 6 second core wires 9 are twisted. The number of the first core wires 7 is 9, and the first core wires 7 are stranded. The inner layers 1-6 cores are twisted by adopting small pitches smaller than 10 times of the outer diameter of the inner layers; the outer layers 7-15 are twisted by adopting small pitches smaller than 10 times of the outer diameter of the outer layers; the inner layer and the outer layer are produced in two pitch modes, so that the stability of the whole product is greatly improved, the deformation of the wire core is reduced, the insulation is prevented from being damaged due to deformation, and the cable has good flexibility. And aramid yarns are uniformly distributed at three positions around the outer layer, so that the bending fatigue resistance of the cable is further improved.
In the above structure, the number of the aramid yarns 8 is 3, and the 3 aramid yarns 8 are arranged in a ring array, and the aramid yarns 8 divide the 9 core wires 7 into 3 groups.
In the above structure, the material of the inner sheath 2 is thermoplastic polyurethane elastomer TPU. The inner sheath 2 is made of modified soft thermoplastic polyurethane elastomer TPU, which is also called thermoplastic polyurethane rubber, and has excellent comprehensive properties such as high strength, high toughness, wear resistance, oil resistance and the like and good processability. The inner sheath mode stabilizes the product structure, and reduces fatigue loss in the cable movement process.
In the above structure, the material of the braid 4 is tin-plated copper wires, and the braid 4 and the semiconductor non-woven fabric 3 constitute a shielding layer. The shielding layer is produced by using a semi-conductive non-woven fabric and tin-plated copper wire weaving mode, so that the electromagnetic interference resistance of the product is improved. The use of the semiconductor non-woven fabric not only gives consideration to the anti-interference capability of the aluminum foil, but also ensures the softness of the product. The shielding layer is coated with the flame-retardant thin short fiber non-woven fabric, so that the outer layer of the sheath can be easily peeled off during assembly and processing of customers.
In the above structure, the material of the outer sheath 6 is polyether type thermoplastic polyurethane elastomer TPU. The outer sheath 6 is made of high-quality polyether type thermoplastic polyurethane elastomer TPU, and the material has excellent wear resistance, ozone resistance, salt fog resistance, high hardness, high strength, good elasticity, low temperature resistance, good oil resistance, chemical resistance and environmental resistance, and the hydrolytic stability of the polyether type material is far higher than that of the polyester type.
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 utility model 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 variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. An anti-fatigue cable for an offshore wind turbine, comprising: the thin film layer, the inner sheath, the semiconductor non-woven fabric, the woven layer, the non-woven fabric and the outer sheath are sequentially arranged from inside to outside; the novel nylon yarn is characterized in that a first core wire and an aramid yarn which are positioned on the same circumference are arranged in the film layer, a second core wire which is positioned on the same circumference is arranged in the first core wire and the aramid yarn, a woven fiber rope is filled in the second core wire which is positioned on the same circumference, and the film layer is made of an expanded PTFE film.
2. The anti-fatigue cable for offshore wind turbine of claim 1, wherein: the first core wire and the second core wire have the same structure, and each of the first core wire and the second core wire comprises an insulator and a conductor.
3. The anti-fatigue cable for offshore wind turbine of claim 2, wherein: the conductors are 6 kinds of conductors.
4. The anti-fatigue cable for offshore wind turbine of claim 3, wherein: the insulator is made of thermoplastic polyester elastomer TPEE.
5. The anti-fatigue cable for offshore wind turbine of claim 1, wherein: the number of the second core wires is 6, and the 6 second core wires are stranded.
6. The anti-fatigue cable for offshore wind turbine of claim 1, wherein: the number of the first core wires is 9, and the first core wires are stranded.
7. The offshore wind turbine anti-fatigue cable of claim 6, wherein: the number of the aramid yarns is 3, the 3 aramid yarns are arranged in an annular array mode, and the aramid yarns divide 9 core wires into 3 groups.
8. The anti-fatigue cable for offshore wind turbine of claim 1, wherein: the inner sheath is made of thermoplastic polyurethane elastomer TPU.
9. The anti-fatigue cable for offshore wind turbine of claim 1, wherein: the material of weaving layer is tinned copper wire, weaving layer and semiconductor non-woven fabrics constitute the shielding layer.
10. The anti-fatigue cable for offshore wind turbine of claim 1, wherein: the outer sheath is made of polyether type thermoplastic polyurethane elastomer TPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322460067.0U CN220895230U (en) | 2023-09-11 | 2023-09-11 | Anti-fatigue cable for offshore wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322460067.0U CN220895230U (en) | 2023-09-11 | 2023-09-11 | Anti-fatigue cable for offshore wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895230U true CN220895230U (en) | 2024-05-03 |
Family
ID=90841772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322460067.0U Active CN220895230U (en) | 2023-09-11 | 2023-09-11 | Anti-fatigue cable for offshore wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895230U (en) |
-
2023
- 2023-09-11 CN CN202322460067.0U patent/CN220895230U/en active Active
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