CN219591148U - Ice and snow resistant and anti-freezing wire and cable - Google Patents
Ice and snow resistant and anti-freezing wire and cable Download PDFInfo
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- CN219591148U CN219591148U CN202320433516.XU CN202320433516U CN219591148U CN 219591148 U CN219591148 U CN 219591148U CN 202320433516 U CN202320433516 U CN 202320433516U CN 219591148 U CN219591148 U CN 219591148U
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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
- 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
Abstract
The utility model discloses an ice and snow resistant and ice resistant wire and cable, which comprises a reinforcing core, an inner aluminum wire layer, an outer aluminum wire layer, an insulating layer, a wrapping layer, a shielding layer and an outer sheath; according to the utility model, the inner aluminum wire layer and the outer aluminum wire layer which have the conducting effect are wound around the periphery of the reinforced core, and when the inner aluminum wire layer and the outer aluminum wire layer are blown by strong wind, the vibration frequencies of the first special-shaped aluminum wire and the second special-shaped aluminum wire of each layer are different and interfere with each other, so that the energy of strong wind vibration can be counteracted, the vibration reduction effect is achieved, the service life of a circuit is prolonged, and the cost is reduced. In addition, the surface of the insulating layer is provided with grooves and protruding parts, and the grooves are helpful for reducing wind tension born by the surface of the cable; when the cable is covered by snow, the convex parts on the two sides of the insulating layer enable the cable to be stressed unevenly and rotate reversely, so that snow slides. The utility model improves the safety of the circuit, has the effects of resisting strong wind and reducing snow, and is beneficial to ensuring the safe and stable operation of the power grid.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to an ice and snow resistant and anti-freezing electric wire and cable.
Background
The steel-cored aluminum strand refers to a reinforced type lead with single-layer or multi-layer aluminum strands stranded outside a galvanized steel-cored wire, and is mainly applied to the industries of electric power and transmission lines, wherein the steel-cored aluminum strand plays a role in bearing tension, and the aluminum wire plays a role in current transmission. With the continuous development of the electric power industry technology, the overhead line distance is longer and longer, the cable often turns over the mountain and the geographic span is very large. Because the cable is erected in the air, once weather such as strong wind, ice and snow appears, traditional steel-cored aluminum stranded wire can swing along with wind and take place the broken wire easily, or break the line under the heavy pressure of ice and snow, leads to causing the power grid to stop basically, the circumstances that appears having a power failure, communication interruption then, and people's life receives serious influence.
Disclosure of Invention
The utility model provides an ice and snow resistant and anti-freezing electric wire and cable, which solves the problems in the prior art. In order to achieve the above purpose, the present utility model provides the following technical solutions: an ice and snow resistant and anti-freezing wire and cable comprises a reinforcing core, an inner aluminum wire layer, an outer aluminum wire layer, an insulating layer, a wrapping layer, a shielding layer and an outer sheath; the inner aluminum wire layer is formed by twisting a plurality of first special-shaped aluminum wires with trapezoidal sections, and gaps are reserved between the adjacent first special-shaped aluminum wires; the outer aluminum wire layer is formed by twisting a plurality of second special-shaped aluminum wires with trapezoidal sections, and gaps are reserved between the adjacent second special-shaped aluminum wires; an inorganic mineral material is filled between the reinforcing core and the inner aluminum wire layer; the outer surface of the outer aluminum wire layer is wrapped with the insulating layer, the wrapping layer is wrapped on the periphery of the insulating layer, the shielding layer is arranged on the periphery of the insulating layer, and the outer sheath is arranged on the periphery of the shielding layer; the surface of the insulating layer is provided with a plurality of grooves and two protruding parts.
Preferably, the cross section of the groove is of an arc-shaped structure.
Preferably, the protruding portions are disposed at both sides of the insulating layer, respectively, and one of the protruding portions is inclined upward and the other protruding portion is inclined downward.
Preferably, the reinforcing core is formed by twisting a plurality of high-strength steel wires.
Preferably, the thickness of the first special-shaped aluminum wire is greater than the thickness of the second special-shaped aluminum wire.
Preferably, the aluminum wire further comprises a low Curie point alloy layer, and the low Curie point alloy layer is coated on the outer surface of the outer aluminum wire layer.
Preferably, the electric auxiliary heating device comprises a heating component and a controller, wherein the heating component is arranged between the insulating layer and the wrapping layer; the controller comprises a temperature detection module and a power control module, wherein the temperature detection module is in signal connection with the power control module, and the power control module is electrically connected with the heating component.
Preferably, the anti-ice-snow protective sleeve further comprises an anti-ice-snow layer arranged on the surface of the outer sheath.
Preferably, the ice and snow resistant layer is a hydrophobic anti-icing paint.
Compared with the prior art, the utility model has the beneficial effects that: the reinforcing core is arranged in the utility model, the inner aluminum wire layer and the outer aluminum wire layer which have the conducting effect are surrounded on the periphery of the reinforcing core, when the inner aluminum wire layer and the outer aluminum wire layer are blown by strong wind, the vibration frequencies of the first special-shaped aluminum wire and the second special-shaped aluminum wire of each layer are different to interfere with each other, so that the energy of strong wind vibration can be counteracted, the effect of vibration reduction and light load can be achieved, the service life of the circuit is prolonged, and the cost is reduced. In addition, the surface of the insulating layer is provided with grooves and protruding parts, and the grooves are helpful for reducing wind tension born by the surface of the cable; when the cable is covered by snow, the convex parts on the two sides of the insulating layer enable the cable to be stressed unevenly and rotate reversely, so that snow slides. The utility model improves the safety of the circuit, has the effects of resisting strong wind and reducing snow, and is beneficial to ensuring the safe and stable operation of the power grid.
Drawings
FIG. 1 is a block diagram of an ice and snow resistant anti-icing wire and cable according to an embodiment of the present utility model;
in fig. 1, the correspondence between the names of the components and the reference numerals is:
1-reinforcing core, 2-inner aluminum wire layer, 21-first special-shaped aluminum wire, 3-outer aluminum wire layer, 31-second special-shaped aluminum wire, 4-insulating layer, 5-wrapping layer, 6-shielding layer, 7-outer sheath, 8-groove, 9-protruding part and 10-low Curie point alloy layer.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. 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.
Referring to fig. 1, the utility model provides an ice and snow resistant and anti-freezing electric wire and cable, which comprises a reinforcing core 1, an inner aluminum wire layer 2, an outer aluminum wire layer 3, an insulating layer 4, a wrapping layer 5, a shielding layer 6 and an outer sheath 7; the inner aluminum wire layer 2 is formed by twisting a plurality of first special-shaped aluminum wires 21 with trapezoidal sections, and gaps are reserved between the adjacent first special-shaped aluminum wires 21; the outer aluminum wire layer 3 is formed by twisting a plurality of second special-shaped aluminum wires 31 with trapezoidal sections, and gaps are reserved between the adjacent second special-shaped aluminum wires 31; an inorganic mineral material is filled between the reinforcing core 1 and the inner aluminum wire layer 2; the outer surface of the outer aluminum wire layer 3 is wrapped with the insulating layer 4, the wrapping layer 5 is wrapped on the periphery of the insulating layer 4, the shielding layer 6 is arranged on the periphery of the insulating layer 4, and the outer sheath 7 is arranged on the periphery of the shielding layer 6; the surface of the insulating layer 4 has a plurality of grooves 8 and two protrusions 9.
In this embodiment, the central position of the whole cable is the reinforcing core 1, and the steel core plays a role of bearing tensile force. The inner aluminum wire layer 2 and the outer aluminum wire layer 3 encircle the periphery of the reinforced core 1, and gaps are reserved between the adjacent first special-shaped aluminum wires 21 and gaps are reserved between the adjacent second special-shaped aluminum wires 31. Through the structural design, when the inner aluminum wire layer 2 and the outer aluminum wire layer 3 are blown by strong wind, the vibration frequencies of the first special-shaped aluminum wires 21 and the second special-shaped aluminum wires 31 of the layers are different from each other to interfere with each other, so that the energy of strong wind vibration can be counteracted, the effect of vibration reduction and light load can be achieved, the fatigue stress of the first special-shaped aluminum wires 21 and the second special-shaped aluminum wires 31 can be reduced, and the service life of a circuit can be prolonged and the cost can be reduced. Furthermore, the surface of the insulating layer 4 is provided with grooves 8 and protrusions 9, and the grooves 8 help to reduce wind tension borne by the surface of the cable; when the cable is covered by snow, the convex parts 9 on the two sides of the insulating layer 4 enable the cable to be stressed unevenly and reversely, so that snow slides down.
Preferably, the cross section of the groove 8 is an arc-shaped structure.
Preferably, the protruding portions 9 are respectively disposed at both sides of the insulating layer 4, and one protruding portion 9 is inclined upward and the other protruding portion 9 is inclined downward. In the present embodiment, two protrusions 9 are provided on both sides of the cable surface, respectively, and the inclination angles of both sides are different, one being inclined upward and the other being inclined downward. In snowy weather, after the two sides of the protruding part 9 are respectively provided with snow, the two sides are not balanced due to the difference of the inclination angles of the two sides, and then the cable is driven to deflect, so that the snow is easy to fall down, and a large amount of accumulation is avoided.
Preferably, the reinforcing core 1 is formed by twisting a plurality of high-strength steel wires.
Preferably, the thickness of the first shaped aluminum wire 21 is greater than the thickness of the second shaped aluminum wire 31.
Preferably, there is also included a low curie point alloy layer 10, the low curie point alloy layer 10 being coated on the outer surface of the outer aluminum wire layer 3. In this embodiment, the low curie point alloy layer 10 is a quaternary alloy of nickel, chromium, silicon, and iron, and is capable of inducing an alternating magnetic field generated by alternating current of the power transmission line at a temperature of 0-20 ℃ to generate eddy current for heating and automatically melting ice.
Preferably, the electric auxiliary heating device comprises a heating component and a controller, wherein the heating component is arranged between the insulating layer 4 and the wrapping layer 5; the controller comprises a temperature detection module and a power control module, wherein the temperature detection module is in signal connection with the power control module, and the power control module is electrically connected with the heating component. In this embodiment, the heating component is disposed between the insulating layer 4 and the wrapping layer 5, and then the temperature detection module detects the ambient temperature around the heating component, and when the temperature is lower than a set value, the power control module adjusts the heating power of the heating component, so that the temperature of the whole cable is controlled within a certain range, thereby better melting ice and snow and reducing disasters.
Preferably, the ice and snow resistant layer is arranged on the surface of the outer sheath 7.
Preferably, the ice and snow resistant layer is a hydrophobic anti-icing paint. In this embodiment, the surface of the cable is sprayed with the hydrophobic anti-icing coating, and when the water drops contact the surface of the coating, the water drops slide down due to the hydrophobic effect of the coating, so that the surface of the coating does not retain moisture, and the anti-icing effect is achieved.
Compared with the prior art, the utility model has the beneficial effects that: the reinforcing core is arranged in the utility model, the inner aluminum wire layer and the outer aluminum wire layer which have the conducting effect are surrounded on the periphery of the reinforcing core, when the inner aluminum wire layer and the outer aluminum wire layer are blown by strong wind, the vibration frequencies of the first special-shaped aluminum wire and the second special-shaped aluminum wire of each layer are different to interfere with each other, so that the energy of strong wind vibration can be counteracted, the effect of vibration reduction and light load can be achieved, the service life of the circuit is prolonged, and the cost is reduced. In addition, the surface of the insulating layer is provided with grooves and protruding parts, and the grooves are helpful for reducing wind tension born by the surface of the cable; when the cable is covered by snow, the convex parts on the two sides of the insulating layer enable the cable to be stressed unevenly and rotate reversely, so that snow slides. The utility model improves the safety of the circuit, has the effects of resisting strong wind and reducing snow, and is beneficial to ensuring the safe and stable operation of the power grid.
The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. The ice and snow resistant and ice resistant electric wire and cable is characterized by comprising a reinforcing core (1), an inner aluminum wire layer (2), an outer aluminum wire layer (3), an insulating layer (4), a wrapping layer (5), a shielding layer (6) and an outer sheath (7); the inner aluminum wire layer is formed by twisting a plurality of first special-shaped aluminum wires (21) with trapezoidal sections, and gaps are reserved between adjacent first special-shaped aluminum wires; the outer aluminum wire layer is formed by twisting a plurality of second special-shaped aluminum wires (31) with trapezoidal sections, and gaps are reserved between the adjacent second special-shaped aluminum wires; an inorganic mineral material is filled between the reinforcing core and the inner aluminum wire layer; the outer surface of the outer aluminum wire layer is wrapped with the insulating layer, the wrapping layer is wrapped on the periphery of the insulating layer, the shielding layer is arranged on the periphery of the insulating layer, and the outer sheath is arranged on the periphery of the shielding layer; the surface of the insulating layer is provided with a plurality of grooves (8) and two convex parts (9).
2. The ice and snow resistant wire and cable according to claim 1, wherein the cross section of the groove is of an arc-shaped structure.
3. The ice and snow resistant wire and cable according to claim 1, wherein the protrusions are provided on both sides of the insulating layer, respectively, and one of the protrusions is inclined upward and the other protrusion is inclined downward.
4. The ice and snow resistant wire and cable according to claim 1, wherein the reinforcing core is formed by twisting a plurality of high-strength steel wires.
5. The ice and snow resistant wire and cable according to claim 1, wherein the thickness of the first shaped aluminum wire is greater than the thickness of the second shaped aluminum wire.
6. The ice and snow resistant wire and cable according to claim 1, further comprising a low curie point alloy layer (10) coated on the outer surface of the outer aluminum wire layer.
7. The ice and snow resistant and ice resistant wire and cable according to claim 1, further comprising an electric auxiliary heating device comprising a heating component and a controller, said heating component being disposed between said insulating layer and said wrapping layer; the controller comprises a temperature detection module and a power control module, wherein the temperature detection module is in signal connection with the power control module, and the power control module is electrically connected with the heating component.
8. The ice and snow resistant wire and cable according to any one of claims 1 to 7, further comprising an ice and snow resistant layer provided on a surface of the outer sheath.
9. The ice and snow resistant wire and cable according to claim 8, wherein the ice and snow resistant layer is a hydrophobic anti-icing coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433516.XU CN219591148U (en) | 2023-03-08 | 2023-03-08 | Ice and snow resistant and anti-freezing wire and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433516.XU CN219591148U (en) | 2023-03-08 | 2023-03-08 | Ice and snow resistant and anti-freezing wire and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219591148U true CN219591148U (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320433516.XU Active CN219591148U (en) | 2023-03-08 | 2023-03-08 | Ice and snow resistant and anti-freezing wire and cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219591148U (en) |
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2023
- 2023-03-08 CN CN202320433516.XU patent/CN219591148U/en active Active
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