CN221040592U - Buffering tensile wind power generation blade lightning cable - Google Patents
Buffering tensile wind power generation blade lightning cable Download PDFInfo
- Publication number
- CN221040592U CN221040592U CN202323025215.2U CN202323025215U CN221040592U CN 221040592 U CN221040592 U CN 221040592U CN 202323025215 U CN202323025215 U CN 202323025215U CN 221040592 U CN221040592 U CN 221040592U
- Authority
- CN
- China
- Prior art keywords
- cable
- tensile
- wind power
- utility
- fiber
- 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
- 238000010248 power generation Methods 0.000 title claims abstract description 13
- 230000003139 buffering effect Effects 0.000 title claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 15
- 239000004677 Nylon Substances 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229920001778 nylon Polymers 0.000 claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims abstract description 12
- -1 polyethylene Polymers 0.000 claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 claims abstract description 12
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 230000005684 electric field Effects 0.000 abstract description 6
- 239000004760 aramid Substances 0.000 abstract description 5
- 229920003235 aromatic polyamide Polymers 0.000 abstract description 5
- 208000025274 Lightning injury Diseases 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a lightning protection cable for a buffering tensile wind power generation blade, which is characterized in that: the cable comprises a cable core, a semiconductive buffer layer, a semiconductive nylon belt, a polyethylene insulating layer, an aramid tensile fiber layer and a polyvinyl chloride sheath, wherein the cable core is formed by twisting an alloy conductor and an aramid tensile fiber. Compared with the traditional wind power generation She Dianlan, the utility model adopts the aramid fiber tensile fiber and the alloy conductor to carry out compound twisting, so that the cable core has lightning protection performance and high tensile property, the fan blade cannot break when in waving, swinging, twisting and other conditions, the current can be kept smooth in a lightning stroke state, and the cable is effectively ensured not to be broken under the action of axial tension. The semi-conductive buffer belt and the semi-conductive buffer nylon belt can buffer the cable, and the semi-conductive function of the semi-conductive buffer belt can effectively homogenize an electric field, so that the cable cannot be broken down even under high-intensity current impact.
Description
Technical Field
The utility model relates to a lightning-protection cable for a buffering tensile wind power generation blade, and belongs to the technical field of cables.
Background
Wind energy is taken as clean and green renewable energy, and the energy structure has larger and larger duty ratio, so that the wind energy is very important green energy. Along with the rapid large-scale commercialization of wind power generation, the requirements of related equipment and matched devices of wind power generation in the field on the co-operation reliability and the service life are higher and higher. In a wind farm, as the general topography is relatively open, the wind turbine is often easy to be struck by lightning, and in order to avoid the phenomenon, the wind turbine is particularly important to effectively lightning protection. In the lightning protection technology of a fan, a lightning conductor is added into a fan blade, so that lightning is transferred from a lightning strike point to the root of the blade along the blade or inside the blade, and an electric arc is prevented from forming inside the blade. Because wind turbine blades in wind fields often have the conditions of waving, swinging, twisting and the like under the actions of aerodynamic force, gravity center and centrifugal force, the lightning conductor in the wind turbine blades is easily broken due to concentrated stress, the condition easily causes the lightning conductor to fail, and finally the wind turbine is damaged due to lightning stroke. In addition, the lightning conductor is often broken down due to insufficient insulation performance or concentration of an electric field inside the insulation. In view of this, how to develop a wind turbine blade lightning protection cable that can cushion tensile strength while ensuring its insulation properties, preventing the cable from being broken down is an important direction to solve this technical problem.
Disclosure of utility model
The utility model aims to provide a buffer tensile wind power generation blade lightning cable to solve the technical problems.
The technical scheme for realizing the aim of the utility model is as follows:
The utility model provides a buffering tensile wind power generation blade lightning cable which characterized in that: the cable comprises a cable core, and a semiconductive buffer layer, a semiconductive nylon belt, a polyethylene insulating layer, an aramid fiber tensile fiber layer and a polyvinyl chloride sheath which are sequentially arranged outside the cable core, wherein the cable core is formed by twisting an alloy conductor and the aramid fiber tensile fiber.
Compared with the traditional wind power generation She Dianlan, the utility model adopts the aramid fiber tensile fiber and the alloy conductor to carry out compound twisting, so that the cable core has lightning protection performance and high tensile property, the fan blade cannot break when in waving, swinging, twisting and other conditions, the current can be kept smooth in a lightning stroke state, and the cable is effectively ensured not to be broken under the action of axial tension; the semi-conductive buffer layer and the semi-conductive nylon belt can buffer the cable, and the semi-conductive function of the semi-conductive nylon belt can effectively homogenize an electric field, so that the cable cannot be broken down even under high-intensity current impact.
Further or alternatively, the alloy conductor is 5-class aluminum alloy, and the alloy has the advantages of softness, portability and small bending radius, so that the cable can be easily laid in a serpentine shape in the fan blade, and meanwhile, the burden of the whole machine is not increased.
Further or alternatively, the thickness of the semiconductive buffer layer is 4.0mm, when the blade is stressed and moves, the conductor of the lightning protection cable can realize displacement to a certain extent in the cable, and the risk of the conductor being broken due to the influence of the stress of the blade can be reduced.
Further or alternatively, the thickness of the semiconductive nylon belt is 0.1+/-0.05 mm, the surface of an electrified body in the insulating layer is smooth, and the insulating internal electric field is homogenized to prevent the breakdown caused by the tip discharge.
Further or alternatively, the aramid fiber tensile fiber layer is arranged outside the polyethylene insulating layer in a surrounding mode, and the single fiber strength of the aramid fiber tensile fiber layer is greater than 13.6MPa so as to ensure the overall strength of the cable.
Further or alternatively, the polyethylene insulating layer (4) is made of crosslinked polyethylene, and the thermosetting material has good temperature resistance and insulating property, so that the cable can still continue to stably run when the inside of the fan and the working environment are in a high-temperature state.
Further or alternatively, the polyvinyl chloride sheath has a tolerance temperature lower than-45 ℃ so as to ensure that the cable can be normally used under the conditions of altitude and seasonal changes in the fan blade, and the sheath material is not cracked.
By adopting the technical scheme, the utility model has the following beneficial effects:
(1) Compared with the traditional wind power generation She Dianlan, the utility model adopts the aramid fiber tensile fiber and the alloy conductor to carry out compound twisting, so that the cable core has lightning protection performance and high tensile property, the fan blade cannot break when in waving, swinging, twisting and other conditions, the current can be kept smooth in a lightning stroke state, and the cable is effectively ensured not to be broken under the action of axial tension.
(2) The semi-conductive buffer layer and the semi-conductive nylon belt can buffer the cable, and the semi-conductive function of the semi-conductive nylon belt can effectively homogenize an electric field, so that the cable cannot be broken down even under high-intensity current impact.
(3) The alloy conductor selected by the utility model is 5-class aluminum alloy, and the alloy has the advantages of softness, portability and small bending radius, so that the cable can be easily laid in a serpentine shape in the fan blade, and the burden of the whole machine is not increased.
(4) The semi-conductive buffer layer with the thickness of 4.0mm is arranged, when the blade is stressed and moves, the conductor of the lightning protection cable can realize displacement to a certain extent in the cable, and the risk of the conductor being broken due to the influence of the stress of the blade can be reduced.
(5) The semiconductive nylon belt is arranged, so that the surface of the charged body in the insulating layer is smooth, the electric field in the insulating layer is homogenized, and the breakdown caused by the tip discharge is prevented.
(6) The aramid tensile fiber with the single fiber strength of more than 13.6MPa is selected for double protection on the cable strength.
(7) The polyethylene insulating layer is made of crosslinked polyethylene, and the cable can still continue to stably run when the inside of the fan and the working environment are in a high-temperature state by utilizing good temperature resistance and insulating performance of the thermosetting material.
(8) The polyvinyl chloride sheath with low tolerance temperature is selected, so that the cable can be normally used under the conditions of elevation and seasonal change in the fan blade, and the sheath material is not cracked.
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 which are illustrated in the appended drawings, in which
Fig. 1 is a schematic structural view of the present utility model.
The reference numerals in the drawings are:
The cable comprises a cable core 1, an alloy conductor 101, aramid tensile fibers 102, a semiconductive buffer layer 2, a semiconductive nylon belt 3, a polyethylene insulating layer 4, an aramid tensile fiber layer 5 and a polyvinyl chloride sheath 6.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on those shown in the drawings, or those conventionally put in place when the inventive product is used, or those conventionally understood by those skilled in the art, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
Example 1
See FIG. 1, of the present embodiment
The utility model provides a buffering tensile wind power generation blade lightning-arrest cable, includes cable core 1, semiconductive buffer layer 2, semiconductive nylon belt 3, polyethylene insulating layer 4, aramid fiber tensile fiber layer 5, polyvinyl chloride sheath 6, cable core 1 is by alloy conductor 101 and aramid fiber tensile fiber 102 compound hank.
The alloy conductor 101 is a 5-class aluminum alloy.
The thickness of the semiconductive buffer layer 2 is 4.0mm.
The thickness of the semiconductive nylon belt 3 is 0.1mm.
The aramid fiber tensile fiber layer 5 is arranged outside the polyethylene insulating layer 4 in a surrounding mode, and the strength of single fiber of the aramid fiber tensile fiber layer 5 is larger than 13.6MPa.
The polyethylene insulating layer 4 is made of crosslinked polyethylene.
The temperature tolerance of the polyvinyl chloride sheath 6 is lower than-45 ℃.
While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides a buffering tensile wind power generation blade lightning cable which characterized in that: the cable comprises a cable core (1) and a semiconductive buffer layer (2), a semiconductive nylon belt (3), a polyethylene insulating layer (4), an aramid fiber tensile layer (5) and a polyvinyl chloride sheath (6) which are sequentially arranged outside the cable core (1), wherein the cable core (1) is formed by twisting an alloy conductor (101) and an aramid fiber tensile fiber (102).
2. A buffered tensile wind power blade lightning conductor cable according to claim 1, wherein: the alloy conductor (101) is a 5-class aluminum alloy.
3. A buffered tensile wind power blade lightning conductor cable according to claim 1, wherein: the thickness of the semiconductive buffer layer (2) is 4.0mm.
4. A buffered tensile wind power blade lightning conductor cable according to claim 1, wherein: the thickness of the semiconductive nylon belt (3) is 0.1+/-0.05 mm.
5. A buffered tensile wind power blade lightning conductor cable according to claim 1, wherein: the aramid fiber tensile fiber layer (5) is arranged outside the polyethylene insulating layer (4) in a surrounding mode, and the strength of single fiber of the aramid fiber tensile fiber layer (5) is larger than 13.6MPa.
6. A buffered tensile wind power blade lightning conductor cable according to claim 1, wherein: the polyethylene insulating layer (4) is made of crosslinked polyethylene.
7. A buffered tensile wind power blade lightning conductor cable according to claim 1, wherein: the resistance temperature of the polyvinyl chloride sheath (6) is lower than-45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323025215.2U CN221040592U (en) | 2023-11-09 | 2023-11-09 | Buffering tensile wind power generation blade lightning cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323025215.2U CN221040592U (en) | 2023-11-09 | 2023-11-09 | Buffering tensile wind power generation blade lightning cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221040592U true CN221040592U (en) | 2024-05-28 |
Family
ID=91177831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323025215.2U Active CN221040592U (en) | 2023-11-09 | 2023-11-09 | Buffering tensile wind power generation blade lightning cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221040592U (en) |
-
2023
- 2023-11-09 CN CN202323025215.2U patent/CN221040592U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208778151U (en) | Blade lightning protection device, blade lightning-protection system, fan blade and wind-driven generator | |
| CN221040592U (en) | Buffering tensile wind power generation blade lightning cable | |
| CN208778152U (en) | Blade tip lightning protection device, blade lightning-protection system, fan blade and wind-driven generator | |
| CN106876031A (en) | A kind of self-damping low loss and high strength aluminium Baogang core heat-resisting aluminium alloy twisted wire | |
| CN104917303A (en) | Power taking device and unmanned helicopter with the same | |
| CN215643742U (en) | Cable for wind power generation with long service life | |
| CN213635458U (en) | Novel high-strength high-temperature-resistant anti-distortion environment-friendly flexible cable for wind power generation | |
| CN202159531U (en) | Optical fiber composite overhead ground wire and ultrahigh-voltage direct-current transmission line | |
| CN209358297U (en) | A kind of electricity getting device | |
| CN207558472U (en) | A kind of self-damping low loss and high strength aluminium Baogang core heat-resisting aluminium alloy twisted wire | |
| CN209691439U (en) | A kind of aerial insulated cable | |
| CN216849385U (en) | Outdoor low-voltage cable | |
| CN206395587U (en) | A kind of novel wear resistant enamel-covered wire and take-up | |
| CN221225885U (en) | Coaxial special high-current pulse cable | |
| CN214698190U (en) | Anti-winding connecting piece for fan cable and connecting structure for fan cabin and tower barrel | |
| CN221427394U (en) | Lightning protection aluminum alloy grounding cable for wind power blade | |
| CN218996404U (en) | Halogen-free flame-retardant motor lead wire | |
| CN220962818U (en) | Lightning-protection leading-in cable for high-strength wind power blade | |
| CN219202808U (en) | Low-temperature-torsion-resistant wind energy power cable | |
| CN217306144U (en) | Super soft motor lead wire of insulating glass silk braided sheath | |
| CN213070717U (en) | Anti-fatigue high-voltage power cable for electric bus | |
| CN209561053U (en) | Extremely cold area Novel cold-resistant cable | |
| CN214043150U (en) | Cold-resistant and distortion-resistant cable for 35kv rubber insulation sheath wind driven generator | |
| CN216133680U (en) | Anti-aging electric vehicle wire harness structure | |
| CN216772862U (en) | Aluminum alloy cable for wind power generation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |