CN222980192U - A torsion-resistant wind power cable - Google Patents
A torsion-resistant wind power cable Download PDFInfo
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- CN222980192U CN222980192U CN202421324697.3U CN202421324697U CN222980192U CN 222980192 U CN222980192 U CN 222980192U CN 202421324697 U CN202421324697 U CN 202421324697U CN 222980192 U CN222980192 U CN 222980192U
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- 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
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- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model provides an anti-torsion wind energy cable which comprises a cable core, wherein an aluminum foil maillard separating belt layer, a silicon rubber outer sheath and a synthetic fiber weaving layer are sequentially arranged on the outer side of the cable core from inside to outside, the weaving density of the synthetic fiber weaving layer is more than or equal to 85%, the technical problems that the anti-torsion performance of a traditional wind energy cable is weak, easy to break, age and damage are solved, the anti-torsion performance of the wind energy cable is improved, the problems that the cable is easy to break, age and damage are effectively avoided, the running stability of the wind energy cable in a severe working environment is ensured, the potential safety hazard caused by ageing or breakage of a circuit is greatly reduced, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to the technical field of wind energy cables, in particular to a torsion-resistant wind energy cable.
Background
Wind energy, a clean, renewable energy source, has gained widespread attention and use worldwide. Wind power generation systems are a major form of wind energy utilization, and their stability and reliability are of vital importance for the continuity of energy supply and environmental protection. In a wind power generation system, a cable is used as a key component for connecting a wind power generator with a power grid, and the performance of the cable directly influences the operation efficiency and the safety of the whole system.
However, despite the significant advances made in wind power generation technology, the wind power cables of the prior art still suffer from a number of significant drawbacks and deficiencies.
First, from the material selection point of view, conventional wind power cables are mostly made of crosslinked polyethylene or ethylene propylene rubber insulation and various elastomer sheaths. Although the material has excellent electrical performance and material price advantages, the weather resistance, abrasion resistance, high and low temperature resistance, UV resistance, torsion resistance and ageing resistance of the material are relatively weak under complex and changeable wind power environments. Because of the abundant wind resources in north China, wind power plants are usually located in remote areas in north China, have severe environmental conditions, large wind, much dust and sand and large temperature fluctuation. These factors can cause damage to the cable to different extents, leading to aging and breakage of the cable and even causing safety accidents.
Second, the torsion resistance of conventional wind energy cables is weak. The wind driven generator can frequently rotate and swing in the running process, and high requirements are put on the torsion resistance of the cable. However, the existing cable is difficult to bear the frequent torsion, and the problems of breakage, breakage and the like are easy to occur. The method not only can influence the normal operation of the wind power system, but also can increase the maintenance cost and reduce the economic benefit of the system.
Disclosure of utility model
In order to solve the technical problems that the torsion resistance of the traditional wind energy cable is weak and the traditional wind energy cable is easy to break, age and damage, the utility model provides the torsion resistance wind energy cable, which solves the technical problems that the traditional wind energy cable is weak, easy to break, age and damage, and the like, improves the torsion resistance of the wind energy cable, effectively avoids the problems that the cable is easy to break, age and damage, and the like, ensures the operation stability of the wind energy cable in a severe working environment, greatly reduces the potential safety hazard caused by aging or breakage of a line, and reduces the maintenance cost.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
On one hand, the utility model provides an anti-torsion wind energy cable which comprises a cable core, wherein an aluminum foil Mylar separation belt layer, a silicon rubber outer sheath and a synthetic fiber braiding layer are sequentially arranged on the outer side of the cable core from inside to outside, and the braiding density of the synthetic fiber braiding layer is more than or equal to 85%.
The torsion-resistant wind energy cable solves the technical problems of weak torsion resistance, easiness in breakage, aging, breakage and the like of the traditional wind energy cable, improves the torsion resistance of the wind energy cable, effectively avoids the problems of easiness in breakage, aging, breakage and the like of the cable, ensures the running stability of the wind energy cable under a severe working environment, greatly reduces potential safety hazards caused by aging or breakage of a line, and reduces maintenance cost.
As a preferable technical scheme, the overlapping rate of every two groups of adjacent aluminum foil maillard separation belt layers in the aluminum foil maillard separation belt layers is more than or equal to 20 percent.
The cable core comprises a plurality of wire groups, wherein the wire groups are twisted to form the cable core.
The wire set comprises a conductor, wherein a Mylar wrapping protective belt layer and a silicon rubber insulating layer are sequentially arranged on the outer side of the conductor from inside to outside.
As a preferred technical solution, the gap of the cable core is filled with a flexible flame retardant filler.
The conductor comprises a plurality of copper wires or tinned copper wires, wherein the copper wires or the tinned copper wires adopt a multi-strand composite stranded form to form a prefabricated conductor.
The prefabricated conductor is filled with a conductor filler, wherein the conductor filler comprises any one of Kevlar fiber, copper foil wire and nylon wire.
As the preferable technical scheme, the thickness of the thinnest point of the silicon rubber insulating layer is more than or equal to 0.8mm.
As the preferable technical scheme, the thickness of the thinnest point of the silicon rubber outer sheath is more than or equal to 1.0mm.
As a preferable technical scheme, the flexible flame-retardant filler comprises any one of flame-retardant PP filling ropes, flame-retardant cotton threads, glass fiber ropes and expanded polypropylene fillers.
The torsion-resistant wind energy cable provided by the utility model has the following beneficial effects:
1) The technical problems of weak torsion resistance, easiness in breakage, ageing, breakage and the like of the traditional wind energy cable are solved, the torsion resistance of the wind energy cable is improved, the problems of easiness in breakage, ageing, breakage and the like of the cable are effectively avoided, the running stability of the wind energy cable under a severe working environment is ensured, potential safety hazards caused by ageing or breakage of a circuit are greatly reduced, and the maintenance cost is reduced.
2) The aluminum foil maillard separate belt layer is purposefully selected, and mainly plays a role in protecting the silicon rubber insulating layer and electromagnetic shielding, so that external interference signals can be effectively blocked, and normal operation of equipment is ensured;
According to the application, the silicone rubber outer sheath is purposefully selected, so that the effects of weather resistance, abrasion resistance, high and low temperature resistance, UV resistance, aging resistance, torsion resistance, low density, high flexibility and corrosion resistance are achieved, the silicone rubber outer sheath is environment-friendly, pollution-free and suitable for the operation temperature of the cable, the problems of easy breakage, aging, breakage and the like of the cable are effectively avoided, the service life of the cable in a severe environment is prolonged, and the maintenance cost is reduced;
The synthetic fiber braiding layer is purposefully selected, so that the cable has high mechanical strength, and mainly plays a role in protecting the silicone rubber outer sheath and improving the torsion resistance, and the braiding density of the synthetic fiber braiding layer is more than or equal to 85%, so that the cable has high mechanical strength, and plays a role in protecting the silicone rubber outer sheath and improving the torsion resistance.
3) The outside of the conductor is provided with a Mylar wrapping protective belt layer and a silicon rubber insulating layer from inside to outside;
According to the application, the silicone rubber insulating layer is purposefully selected, so that the flexibility of the silicone rubber insulating layer is higher, the torsion resistance of the cable is improved, the working temperature is satisfied at-55-180 ℃, and the use requirements of the cable in different high-low temperature environments are satisfied;
The application purposefully selects the Maillard winding protective belt layer, adopts the Maillard winding protective belt to wind, and mainly plays a role of fixing the conductor without loosening, thereby realizing the effects of improving the conductor roundness and facilitating the processing and peeling.
4) The prefabricated conductor is internally filled with a conductor filler, wherein the conductor filler comprises any one of Kev ar fiber, copper foil wire and nylon wire, and the conductor filler mainly plays a role in reinforcing the tensile strength and torsion resistance of the cable.
5) The standard rated temperature of the cable can reach-55-180 ℃, the rated voltage can reach 0.6-1 KV, the finished cable is subjected to alternating current of 50HZ, the test voltage is 3.5kV, and 5min insulation is not broken down;
The rated voltage of the cable can reach 0.6 KV-1 KV, which means that the cable is designed for safe operation under the voltage of not more than 600-1000V, the rated voltage is a key parameter for the design and use of the cable, the cable is ensured to operate for a long time under the rated voltage without damage, and the safe operation capacity of the cable under the rated voltage is improved;
The cable is subjected to alternating current of 50HZ, the test voltage is 3.5kV,5min insulation is not broken down, the cable is a specific embodiment of the electrical strength (also called insulation performance) of the cable, the test shows that the cable can keep complete in a silicon rubber insulation layer at a high voltage of 3500V for 5min, no breakdown phenomenon occurs, and the cable insulation performance is an important index reflecting the safety, reliability and stability of the cable under the high-voltage condition.
Drawings
FIG. 1 is a schematic view of a torsion-resistant wind energy cable according to embodiment 1;
FIG. 2 is a schematic view of a torsion-resistant wind energy cable according to embodiment 2;
Wherein, the aluminum foil tape comprises a 1-aluminum foil Mylar separation tape layer, a 2-silicon rubber outer sheath, a 3-synthetic fiber weaving layer, a 4-conductor, a 5-conductor filler, a 6-Mylar wrapping protection tape layer, a 7-silicon rubber insulating layer, an 8-flexible flame retardant filler and a 9-wire group.
Detailed Description
Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
The utility model provides an anti-torsion wind energy cable which comprises a cable core, wherein an aluminum foil Mylar separation belt layer 1, a silicon rubber outer sheath 2 and a synthetic fiber braiding layer 3 are sequentially arranged on the outer side of the cable core from inside to outside, and the braiding density of the synthetic fiber braiding layer 3 is more than or equal to 85%.
The torsion-resistant wind energy cable solves the technical problems of weak torsion resistance, easiness in breakage, aging, breakage and the like of the traditional wind energy cable, improves the torsion resistance of the wind energy cable, effectively avoids the problems of easiness in breakage, aging, breakage and the like of the cable, ensures the running stability of the wind energy cable under a severe working environment, greatly reduces potential safety hazards caused by aging or breakage of a line, and reduces maintenance cost.
The aluminum foil maillard separation belt layer 1 is purposefully selected, and the aluminum foil maillard separation belt layer 1 mainly plays roles of protecting the silicon rubber insulating layer 7 and electromagnetic shielding, can effectively block external interference signals and ensures the normal operation of equipment;
According to the application, the silicone rubber outer sheath 2 is purposefully selected, the silicone rubber outer sheath 2 has the effects of weather resistance, abrasion resistance, high and low temperature resistance, UV resistance, ageing resistance, torsion resistance, low density, high flexibility, corrosion resistance, and the like, the problems of easy breakage, ageing, damage and the like of a cable are effectively avoided, the service life of the cable in a severe environment is prolonged, the maintenance cost is reduced, the silicone rubber outer sheath 2 is preferably a halogen-free and antimony-free silicone rubber outer sheath, and the environment-friendly and pollution-free cable is also met according to two environmental protection requirements of RoHS and REACH formulated by European Union;
The thickness of the thinnest point of the silicone rubber outer sheath 2 is purposefully selected to be more than or equal to 1.0mm, so that the wall thickness and the weight of the traditional cable are reduced, and the transportation and the storage of the cable are facilitated;
The synthetic fiber braiding layer 3 is purposefully selected, the synthetic fiber braiding layer 3 enables the cable to have high mechanical strength, and mainly plays a role in protecting the silicone rubber outer sheath 2 and improving the torsion resistance, the braiding density of the synthetic fiber braiding layer 3 is more than or equal to 85%, and further enables the cable to have high mechanical strength, and mainly plays a role in protecting the silicone rubber outer sheath 2 and improving the torsion resistance.
Preferably, the overlapping rate of every two groups of adjacent aluminum foil Mylar separation belts in the aluminum foil Mylar separation belt layers 1 is more than or equal to 20%, the aluminum foil Mylar separation belt layers 1 mainly play a role in protecting the silicon rubber insulating layer 7 and electromagnetic shielding, external interference signals can be effectively blocked, normal operation of equipment is guaranteed, the overlapping rate of the aluminum foil Mylar separation belt layers 1 is more than or equal to 20%, and the electromagnetic shielding performance of the cable is further improved.
Preferably, the cable core comprises a plurality of wire sets 9, a plurality of the wire sets 9 being stranded to form the cable core.
Preferably, the wire group 9 comprises a conductor 4, wherein the outside of the conductor 4 is sequentially provided with a mailer wrapping protective belt layer 6 and a silicone rubber insulating layer 7 from inside to outside;
According to the application, the silicone rubber insulating layer 7 is purposefully selected, the flexibility of the silicone rubber insulating layer 7 is higher, the torsion resistance of the cable is improved, the working temperature is satisfied at-55-180 ℃, and the use requirements of the cable in different high-temperature and low-temperature environments are satisfied;
The application purposefully selects the silicon rubber insulating layer 7, the performance of which accords with the national standard of the torsion-resistant flexible cable for wind power generation of GB/T29631-2013 with respect to rated voltage of 1.8/3kV and below, and accords with two environmental protection requirements of RoHS and REACH formulated by European Union, so that the influence of the cable on the environment in the production and use process is reduced to the minimum, and the environmental protection of the cable is improved;
The silicon rubber insulating layer 7 is tightly extruded and coated on the conductor 4, the surface of the silicon rubber insulating layer 7 is smooth and flat, the color is uniform, and the cross section has no defects such as bubbles, sand holes and the like which are visible by human eyes;
The application purposefully selects the silicon rubber insulating layer 7, the performance of which meets the national standard of the torsion-resistant flexible cable for wind power generation with the rated voltage of 1.8/3kV or below of GB/T29631-2013, the thickness requirement of the thinnest point is more than or equal to 0.8mm, the wall thickness and the weight of the traditional cable are reduced, and the transportation and the storage of the cable are facilitated;
The anti-torsion wind energy cable also has excellent electrical performance, the dielectric strength of the silicon rubber insulating layer 7 is 25-30KV/mm through testing, and is much better than other materials, the silicon rubber insulating layer can effectively transmit electric energy and ensure the normal operation of a wind energy power generation system;
The application purposefully selects the Mylar wrapping protective belt layer 6, and adopts the Mylar wrapping protective belt to wrap, which mainly plays a role of fixing the conductor 4 without loosening, thereby realizing the effects of improving the putting roundness of the conductor 4 and facilitating the processing and peeling.
Preferably, the interstices of the cable core are filled with a flexible flame retardant filler 8.
Preferably, the flexible flame retardant filler 8 comprises any one of flame retardant PP filling ropes, flame retardant cotton threads, glass fiber ropes and expanded polypropylene fillers, and further plays a role in reinforcing the tensile strength and torsion of the cable.
Preferably, the conductor 4 comprises a plurality of copper wires or tinned copper wires, wherein the copper wires or the tinned copper wires adopt a multi-strand composite stranded form to form a prefabricated conductor, accords with a 6 th type conductor structure in GB/T3956-2008, provides clear technical requirements and quality guarantee for the production and use of conductors for power cables and flexible wires, and has the composition, performance, resistance and appearance which accord with the specification of GB/T3956-2008 standard, and ensures that the conductor has good conductive performance.
Preferably, the prefabricated conductor is filled with a conductor filler 5, and the conductor filler 5 comprises any one of Kevlar fiber, copper foil wire and nylon wire, and mainly plays a role in reinforcing the tensile strength and torsion of the wire rod.
Preferably, the surface of the conductor 4 is smooth, oil-free, insulating burrs are not damaged, sharp-edged single wires are not generated, and the surface of the conductor 4 is free of bulges or broken single wires.
Example 1
The utility model provides an anti-torsion wind energy cable, which is shown in fig. 1, and comprises two wire groups 9, wherein the wire groups 9 comprise conductors 4, each conductor 4 comprises a plurality of copper wires, the copper wires are in a multi-strand composite twisted form to form a prefabricated conductor, kevlar fiber conductor fillers are filled in the prefabricated conductor to form the conductors 4, a Mylar wrapping protective belt layer 6 and a silicone rubber insulating layer 7 are arranged on the outer side of each conductor 4 from inside to outside to form a wire group 9, the two wire groups 9 are twisted to form a cable core, a flexible flame-retardant filler 8 of a flame-retardant PP filling rope is filled in a cable core gap, an aluminum foil Mylar separation belt layer 1, a silicone rubber outer jacket 2 and a synthetic fiber woven layer 3 are sequentially arranged on the outer side of each cable core from inside to outside, the weaving density of the synthetic fiber woven layer 3 is 85%, the anti-torsion wind energy cable solves the technical problems of weak anti-torsion performance, easy breakage, ageing, breakage and the like of the traditional wind energy cable, the anti-torsion wind energy cable is effectively improved, the cable is easy to break, the cable is not broken, the running cost is greatly reduced, the hidden danger is reduced due to the running cost is greatly, and the safety and the environmental protection is greatly reduced.
Example two
The utility model provides an anti-torsion wind energy cable, which is shown in fig. 2, and comprises four wire groups 9, wherein the wire groups 9 comprise conductors 4, each conductor 4 comprises a plurality of tinned copper wires, the plurality of tinned copper wires adopt a multi-strand composite twisted form to form a prefabricated conductor, copper foil wire conductor fillers are filled in the prefabricated conductor to form the conductor 4, a Mylar wrapping protective tape layer 6 and a silicone rubber insulating layer 7 are arranged on the outer side of the conductor 4 from inside to outside to form a wire group 9, the four wire groups 9 are twisted to form a cable core, a flexible flame retardant filler 8 of flame retardant cotton wires is filled in a cable core gap, an aluminum foil Mylar separation tape layer 1, a silicone rubber outer sheath 2 and a synthetic fiber woven layer 3 are sequentially arranged on the outer side of the cable core from inside to outside, the weaving density of the synthetic fiber woven layer 3 is 90%, the anti-torsion wind energy cable solves the technical problems of weak anti-torsion performance, easy breakage, ageing, breakage and the like of the traditional wind energy cable, the anti-torsion performance of the wind energy cable is effectively improved, the cable is easy to break, the cable is easy to cause the problem of low in running cost and the running cost is greatly reduced, the hidden danger is reduced or the running cost is greatly caused by the cable is not to be broken, and the running is greatly reduced.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all modifications and equivalents falling within the scope of the appended claims. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202421324697.3U CN222980192U (en) | 2024-06-12 | 2024-06-12 | A torsion-resistant wind power cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202421324697.3U CN222980192U (en) | 2024-06-12 | 2024-06-12 | A torsion-resistant wind power cable |
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| CN222980192U true CN222980192U (en) | 2025-06-13 |
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| CN202421324697.3U Active CN222980192U (en) | 2024-06-12 | 2024-06-12 | A torsion-resistant wind power cable |
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