CN209747147U - Thermoplastic elastomer soft copper lightning protection cable applied to wind power blade - Google Patents
Thermoplastic elastomer soft copper lightning protection cable applied to wind power blade Download PDFInfo
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- CN209747147U CN209747147U CN201920564761.8U CN201920564761U CN209747147U CN 209747147 U CN209747147 U CN 209747147U CN 201920564761 U CN201920564761 U CN 201920564761U CN 209747147 U CN209747147 U CN 209747147U
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Abstract
A thermoplastic elastomer soft copper lightning protection cable applied to a wind power blade comprises a plurality of bundles of soft copper conductors, wherein an insulating layer is coated outside the soft copper conductors; a shielding layer which plays a role in protecting, bounding and homogenizing the electric field for the soft copper conductor is also arranged between the soft copper conductor and the insulating layer, the shielding layer comprises a plurality of semi-conductive shielding belts, and the semi-conductive shielding belts are wrapped on the soft copper conductor in a laminated mode; the insulating layer is also coated with a sheath layer, and the insulating layer and the sheath layer are both made of styrene thermoplastic elastomers. The cable has the advantages of reasonable structural design, excellent electrical insulating property, strong weather resistance, fire resistance and corrosion resistance, and can effectively protect the wind blade from being applied in various harsh environmental conditions.
Description
Technical Field
The utility model relates to a wind power generation technical field, especially a be applied to soft copper lightning-arrest cable of thermoplastic elastomer of wind-powered electricity generation blade.
Background
Compared with other renewable energy technologies such as solar energy, biomass energy and the like, the wind power generation technology is more mature, the cost is lower, the damage to the environment is smaller, the wind power generation technology is continuously broken through in the last 20 years, the scale economy is increasingly obvious, and according to the primary statistical result of general survey of wind energy resources, the specific gravity of wind power in a total installation exceeds 7 percent, so that the wind power becomes the third largest power source which is second to thermal power and hydropower.
The wind power project is tested and operated in China since 1985, the national development and reform committee of China operates through the wind power privilege in 2003, and the wind power installation in China does not begin to show explosive growth until 2006. Although wind power is greatly surging in development, the wind power generation unit also faces more problems of market, layout, technology and the like at present, for example, the working environment of the wind power generation unit faces high temperature, high humidity, salt fog, low temperature and the like, and the wind power generation unit resists disastrous weather such as thunder, freezing, floating ice on the sea and the like, and the environmental adaptability of the wind power generation unit is urgently needed to be enhanced. The wind generating set is arranged in a region with strong wind power in China at present and is arranged at a higher elevation point than surrounding regions, and other tall objects are lack around the wind generating set, so that the wind generating set is more easily attracted by thunder. According to statistics, lightning stroke faults of 100 wind turbines in one year can reach 14 times. 7% -10% of lightning strikes will cause damage to the blade, and compared with faults caused by other factors, the faults caused by the lightning strikes will cause more than 40% of energy loss, and therefore the downtime is increased by more than 20%.
Lightning stroke can be regarded as a strong current source, and the lightning protection cable is always a major bottleneck for the development of the wind energy lightning protection system due to the problems of the structure mode, the operation stability, the maintenance cost and the like in the use process. With the appearance of novel materials and the progress of process methods, the concept of 'reinforcing' by using the novel materials and the novel process also starts to be popularized and applied, and the difference of the electrical insulation performance, the environmental weather resistance, the fire resistance and the corrosion resistance of the lightning protection cable greatly influences the safety and the reliability of a lightning protection system in an extreme environment and has a non-negligible influence on the use of blades in a harsh environment.
disclosure of Invention
The utility model aims to solve the technical problem that to prior art not enough, provide a structural design is reasonable, electrical insulation can be good, resistant time and fire prevention corrosion resistance can be strong, can be applicable to the thermoplastic elastomer soft copper lightning cable of being applied to wind-powered electricity generation blade of various harsh environmental conditions.
The technical problem to be solved by the utility model is realized through the following technical scheme. The utility model relates to a thermoplastic elastomer soft copper lightning protection cable applied to wind power blades, which comprises a plurality of bundles of soft copper conductors, wherein the soft copper conductors are coated with insulating layers; and a shielding layer which plays a role in protecting, bounding and homogenizing an electric field for the soft copper conductor is further arranged between the soft copper conductor and the insulating layer, the shielding layer comprises a plurality of semi-conductive shielding belts, and the semi-conductive shielding belts are wrapped on the soft copper conductor in a laminated manner.
the utility model discloses the technical problem that solve can also further realize through following technical scheme, to above be applied to wind-powered electricity generation blade's soft copper lightning cable of thermoplastic elastomer, the soft copper conductor adopts the tinned copper single line to make.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, to above be applied to wind power blade's soft copper lightning-arrest cable of thermoplastic elastomer, soft copper conductor is provided with 19 bundles, and 19 bundles of soft copper conductor divide 3 groups to set up, and first group includes 1 bundle of soft copper conductor, and the second group includes 6 bundles of soft copper conductor, and the third group includes 12 bundles of soft copper conductor, and 6 bundles of soft copper conductor evenly distributed of the second group are in the soft copper conductor circumference of first group, and 12 bundles of soft copper conductor evenly distributed of the third group are in the soft copper conductor circumference of the second group.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, to above be applied to wind power blade's thermoplastic elastomer soft copper lightning-arrest cable, every bundle of soft copper conductor includes 19 tinned copper single lines, and 19 tinned copper single lines divide 3 groups to set up, and first group includes 1 tinned copper single line, and the second group includes 6 tinned copper single lines, and the third group includes 12 tinned copper single lines, and 6 tinned copper single lines evenly distributed of the second group are in first group's tinned copper single line circumference, and 12 tinned copper single lines evenly distributed of the third group are in the tinned copper single line circumference of the second group.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, the insulating layer still cladding has the restrictive coating outward.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, to above be applied to wind-powered electricity generation blade's thermoplastic elastomer soft copper lightning cable, insulating layer and restrictive coating all adopt styrene class thermoplastic elastomer to make.
Compared with the prior art, the utility model conducts electricity through the soft copper conductor, and is provided with the shielding belt which covers the soft copper conductor, thereby playing the roles of protecting, bounding and homogenizing the electric field for the soft copper conductor; an insulating layer for coating the shielding belt is arranged to play the roles of insulation and breakdown prevention; the sheath layer is arranged to cover the insulating layer, so that secondary insulation, physical protection and creepage prevention functions are achieved. The utility model provides a thermoplastic elastomer soft copper lightning-arrest cable, structural design is reasonable, and electrical insulation can be good, and is resistant to weather, fire prevention corrosion resisting property is strong, can effectively protect wind-force blade and use in various harsh environmental conditions.
drawings
Fig. 1 is a schematic cross-sectional structure of the present invention;
FIG. 2 is a schematic sectional view of the present invention;
FIG. 3 is a schematic cross-sectional structure without a sheath layer according to the present invention;
Fig. 4 is a schematic sectional structure without a sheath layer according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a thermoplastic elastomer soft copper lightning protection cable applied to a wind power blade comprises a plurality of bundles of soft copper conductors, wherein an insulating layer is coated outside the soft copper conductors; and a shielding layer which plays a role in protecting, bounding and homogenizing an electric field for the soft copper conductor is further arranged between the soft copper conductor and the insulating layer, the shielding layer comprises a plurality of semi-conductive shielding belts, and the semi-conductive shielding belts are wrapped on the soft copper conductor in a laminated manner.
The soft copper conductor is formed by twisting tinned copper single wires, and the tinned copper single wires are formed by tinning the surface of a copper wire, so that copper oxidation and corrosion can be avoided, weldability and reliability are improved, and attractiveness is improved.
The soft copper conductor is provided with 19 bundles, 19 bundles of soft copper conductor divide into 3 groups and set up, first group includes 1 bundle of soft copper conductor, the second group includes 6 bundles of soft copper conductor, the third group includes 12 bundles of soft copper conductor, 6 bundles of soft copper conductor evenly distributed of the second group are in the soft copper conductor circumference of first group, 12 bundles of soft copper conductor evenly distributed of the third group are in the soft copper conductor circumference of the second group, outer soft copper conductor fastens and supports inner layer soft copper conductor, further optimized the conductor structure, improved electric conductive property.
every bundle of soft copper conductor includes 19 tin-plated copper single lines, 19 tin-plated copper single lines divide 3 groups to set up, first group includes 1 tin-plated copper single line, the second group includes 6 tin-plated copper single lines, the third group includes 12 tin-plated copper single lines, 6 tin-plated copper single line evenly distributed of second group are in the tin-plated copper single line circumference of first group, 12 tin-plated copper single lines evenly distributed of third group are in the tin-plated copper single line circumference of second group, outer soft copper single line fastens and supports the soft copper single line of inner layer, the conductor structure has further been optimized, the electric conductive property has been improved.
The insulating layer still cladding has the restrictive coating outward, and the restrictive coating is used for protecting the insulating layer, sets up at outermost, effectively protects this cable is whole, during the actual production, also accessible increase insulating layer's insulation thickness, cancels restrictive coating production, only sets up the insulating layer, makes the insulating layer have insulating and protective function concurrently.
The insulating layer and the sheath layer are both made of styrene thermoplastic elastomers. The styrene thermoplastic elastomer has the advantages of strength, wear resistance, rolling resistance, impact resistance, fire resistance, thermal stability, dielectric property, favorable rebound resilience and low-temperature flexibility, and can be used as an insulation and sheath material of a lead and a cable.
the cable of the present application has the advantages of:
1. The bending performance of the conductor can be enhanced, the overload capacity of the conductor is increased while the bearing section is reduced through the optimization of the conductor structure, the running capacity of the conductor is improved, and the mechanical property of the lightning-protection cable is improved;
2. The production process can be optimized, the non-woven fabric and the thermoplastic shielding are replaced by the light semi-conductive shielding belt, the equipment and the process involved in production can be reduced, the cost and the weight of the thermoplastic elastomer soft copper lightning protection cable can be greatly reduced, the overall section and the production period of the cable are reduced through product structure optimization, the overall flexibility of the cable is improved, and the difficulty of construction and later maintenance is reduced;
3. The electric insulation performance, weather resistance, fire resistance and corrosion resistance of the lightning-protection cable can be improved, the lightning-protection cable of the wind blade can be prevented from being rapidly aged and damaged under severe conditions, the adaptability of the lightning-protection cable for the wind blade under various environments is improved, and the operation reliability of a lightning-protection system is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a be applied to wind-powered electricity generation blade's soft copper lightning cable of thermoplastic elastomer which characterized in that: the cable comprises a plurality of bundles of soft copper conductors, wherein insulating layers are coated outside the soft copper conductors; and a shielding layer which plays a role in protecting, bounding and homogenizing an electric field for the soft copper conductor is further arranged between the soft copper conductor and the insulating layer, the shielding layer comprises a plurality of semi-conductive shielding belts, and the semi-conductive shielding belts are wrapped on the soft copper conductor in a laminated manner.
2. The thermoplastic elastomer soft copper lightning protection cable applied to the wind power blade as claimed in claim 1, wherein: the soft copper conductor is made of tin-plated copper single wires.
3. The thermoplastic elastomer soft copper lightning protection cable applied to the wind power blade as claimed in claim 1, wherein: the soft copper conductor is provided with 19 bundles, and 19 bundles of soft copper conductors divide into 3 groups and set up, and the first group includes 1 bundle of soft copper conductor, and the second group includes 6 bundles of soft copper conductors, and the third group includes 12 bundles of soft copper conductors, and the 6 bundles of soft copper conductors evenly distributed of the second group are in the soft copper conductor circumference of first group, and the 12 bundles of soft copper conductors evenly distributed of the third group are in the soft copper conductor circumference of the second group.
4. The thermoplastic elastomer soft copper lightning protection cable applied to the wind power blade as claimed in claim 3, wherein: every bundle of soft copper conductor includes 19 tinned copper single lines, and 19 tinned copper single lines divide 3 groups to set up, and first group includes 1 tinned copper single line, and the second group includes 6 tinned copper single lines, and the third group includes 12 tinned copper single lines, and 6 tinned copper single lines evenly distributed of second group are in the tinned copper single line circumference of first group, and 12 tinned copper single lines evenly distributed of third group are in the tinned copper single line circumference of second group.
5. The thermoplastic elastomer soft copper lightning protection cable applied to the wind power blade as claimed in claim 1, wherein: and the insulating layer is also coated with a sheath layer.
6. The thermoplastic elastomer soft copper lightning protection cable applied to the wind power blade as claimed in claim 5, wherein: the insulating layer and the sheath layer are both made of styrene thermoplastic elastomers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564761.8U CN209747147U (en) | 2019-04-24 | 2019-04-24 | Thermoplastic elastomer soft copper lightning protection cable applied to wind power blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564761.8U CN209747147U (en) | 2019-04-24 | 2019-04-24 | Thermoplastic elastomer soft copper lightning protection cable applied to wind power blade |
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| CN209747147U true CN209747147U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920564761.8U Active CN209747147U (en) | 2019-04-24 | 2019-04-24 | Thermoplastic elastomer soft copper lightning protection cable applied to wind power blade |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863307A (en) * | 2020-07-16 | 2020-10-30 | 中复碳芯电缆科技有限公司 | Aluminum alloy insulation flexible cable of lightning protection system in wind power blade and manufacturing method thereof |
| CN112071477A (en) * | 2020-09-09 | 2020-12-11 | 中复碳芯电缆科技有限公司 | Aluminum alloy insulation flexible cable applied to lightning protection system in wind power blade and preparation method thereof |
-
2019
- 2019-04-24 CN CN201920564761.8U patent/CN209747147U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863307A (en) * | 2020-07-16 | 2020-10-30 | 中复碳芯电缆科技有限公司 | Aluminum alloy insulation flexible cable of lightning protection system in wind power blade and manufacturing method thereof |
| CN112071477A (en) * | 2020-09-09 | 2020-12-11 | 中复碳芯电缆科技有限公司 | Aluminum alloy insulation flexible cable applied to lightning protection system in wind power blade and preparation method thereof |
| CN112071477B (en) * | 2020-09-09 | 2022-03-18 | 中复碳芯电缆科技有限公司 | Aluminum alloy insulation flexible cable applied to lightning protection system in wind power blade and preparation method thereof |
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