CN216487463U - Overhead conductor with composite reinforced core - Google Patents
Overhead conductor with composite reinforced core Download PDFInfo
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- CN216487463U CN216487463U CN202122962341.5U CN202122962341U CN216487463U CN 216487463 U CN216487463 U CN 216487463U CN 202122962341 U CN202122962341 U CN 202122962341U CN 216487463 U CN216487463 U CN 216487463U
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Abstract
The utility model relates to an overhead conductor with a composite reinforced core, which comprises a conducting layer and the composite reinforced core, wherein the conducting layer comprises a plurality of conducting wires, the conducting wires in the conducting layer are all stranded outside the composite reinforced core, and an aramid fiber part is arranged in the composite reinforced core. The utility model can effectively reduce the dead weight of the overhead conductor, effectively improve the service performance of the overhead conductor, provide effective guarantee for the safe and stable operation of the overhead transmission line, and simultaneously effectively reduce the processing cost and the use cost of the overhead conductor.
Description
Technical Field
The utility model relates to the technical field of overhead conductors, in particular to an overhead conductor with a composite reinforcing core.
Background
The overhead line mainly refers to a power transmission line which is erected on a ground tower and used for transmitting electric energy. The existing overhead transmission line is generally provided with a galvanized steel core or an aluminum-clad steel core, the reinforced core has higher density and weight and larger magnetic loss in an alternating-current transmission line, in addition, the galvanized steel core also has the problem of lower corrosion resistance, and the aluminum-clad steel core type line also has the problem that the strength of the aluminum-clad steel core type line is lower than that of an aluminum stranded wire with the steel core in the same specification; the other method is to adopt the carbon fiber reinforced core to replace the existing galvanized steel core/aluminum-clad steel core, although the weight of the wire can be reduced by the method, the bending resistance of the wire is poor, and the wire is easy to damage in the construction process, so that the wire is broken in the operation process, and the operation safety of the line is influenced.
Therefore, the existing overhead conductor reinforcing core cannot satisfy the laying requirements of the overhead conductor, and has better service performance while meeting the requirements of light weight and low cost.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the defect that the overhead conductor reinforcing core in the prior art cannot meet the requirements of light weight, low cost and better service performance.
In order to solve the technical problem, the utility model provides an overhead conductor with a composite reinforced core, which comprises a conducting layer and the composite reinforced core, wherein the conducting layer comprises a plurality of conducting wires, the conducting wires in the conducting layer are all twisted outside the composite reinforced core, and an aramid fiber part is arranged in the composite reinforced core.
In one embodiment of the utility model, the aramid fiber member is in a thread shape, the composite reinforced core comprises a first core rod and a first epoxy resin layer which are sequentially arranged from inside to outside, and the aramid fiber member and the carbon fiber thread are embedded on the first core rod.
In one embodiment of the present invention, the first core rod is an epoxy rod.
In one embodiment of the utility model, the sum of the number of carbon fiber filaments and aramid fiber pieces is recorded as the total number of fibers, and the number of aramid fiber pieces is 20-50% of the total number of fibers.
In one embodiment of the utility model, the aramid fiber part is in a belt shape, the composite reinforcing core comprises a second core rod, an aramid fiber part and a second epoxy resin layer which are sequentially arranged from inside to outside, the aramid fiber part is coated on the second core rod, and the second core rod is a carbon fiber rod.
In one embodiment of the utility model, the composite reinforced core comprises a middle core, a plurality of metal strands are stranded outside the middle core, aramid fiber pieces are stranded in gaps between every two adjacent metal strands, and the middle core and the metal strands both adopt an aluminum-clad steel core structure.
In one embodiment of the present invention, the aramid fiber member is in a belt shape, the composite reinforced core includes an inner core, the aramid fiber member is covered outside the inner core, the inner core includes a middle core and a plurality of metal strands twisted outside the middle core, and both the middle core and the metal strands adopt an aluminum-covered steel core structure.
In one embodiment of the present invention, the conductive wire is a soft aluminum type wire or an aluminum alloy wire.
In one embodiment of the utility model, the conductive line has a trapezoidal cross section.
In one embodiment of the utility model, a plurality of conductive layers are disposed on the exterior of the composite reinforcement core.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the overhead conductor with the composite reinforcing core can effectively reduce the dead weight of the overhead conductor, has the advantages of high strength, low density, high capacity, low sag, corrosion resistance, high temperature resistance and the like, effectively improves the service performance of the overhead conductor, provides effective guarantee for the safe and stable operation of an overhead transmission line, and simultaneously effectively reduces the processing cost and the use cost of the overhead conductor.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.
FIG. 1 is a schematic structural view of a first embodiment of an overhead conductor having a composite reinforcing core of the present invention;
FIG. 2 is a schematic structural view of a second embodiment of an overhead conductor having a composite reinforcing core of the present invention;
FIG. 3 is a schematic structural view of a third embodiment of an overhead conductor having a composite reinforcing core of the present invention;
FIG. 4 is a schematic structural view of a fourth embodiment of an overhead conductor having a composite reinforcing core of the present invention;
the specification reference numbers indicate: 1. a conductive layer; 11. a conductive wire; 2. a composite reinforcement core; 21. an aramid fiber member; 22. a first core rod; 23. carbon fiber filaments; 24. a first epoxy resin layer; 25. a second core rod; 26. a second epoxy resin layer; 27. a middle core; 28. a metal strand; 29. an inner core.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Example one
Referring to fig. 1, the present embodiment discloses an overhead conductor with a composite reinforced core, which includes a conductive layer 1 and a composite reinforced core 2, wherein the conductive layer 1 includes a plurality of conductive wires 11, the conductive wires 11 in the conductive layer 1 are all stranded outside the composite reinforced core 2, and an aramid fiber part 21 is disposed in the composite reinforced core 2.
Through adding aramid fiber spare 21 in compound reinforced core 2, do benefit to the weight that reduces air wire, linear density and handing over, direct current resistance, have certain anti bending effect simultaneously, it is fire-retardant to prevent fires to do benefit to and promote air wire's tensile strength, compare in the galvanized steel core of the same diameter, aluminium package steel core or aluminium base ceramic fiber compound core class reinforced core simultaneously, also greatly reduced the processing cost.
Wherein, as shown in fig. 1, aramid fiber 21 is threadlike, and the composite reinforcement core 2 includes a first core rod 22 and a first epoxy resin layer 24 that set gradually from inside to outside, and aramid fiber 21 and carbon fiber 23 are embedded on first core rod 22.
The first epoxy layer 24 serves as a curing structure and also as a protection for the first mandrel 22.
Further, the thickness of the first epoxy resin layer 24 is 0.1mm to 0.5mm, which is not easily too large to avoid increasing the overall weight.
In one embodiment, the first mandrel 22 is an epoxy mandrel. The epoxy resin has a certain adhesive effect, and during processing, the filamentous aramid fiber part 21 and the carbon fiber yarn 23 are mixed according to a certain proportion, then the epoxy resin is used as the adhesive for adhesion, and the mixture is made into a round bar shape by a certain process, so that a first mandrel structure embedded with the aramid fiber part 21 and the carbon fiber yarn 23 can be formed.
In one embodiment, the sum of the number of the carbon fiber filaments 23 and the number of the aramid fiber pieces 21 is recorded as the total number of the fibers, and the number of the aramid fiber pieces 21 is 20% -50% of the total number of the fibers, so that the strength of the overhead conductor can be better ensured to be improved and the sag change can be reduced while the self weight of the overhead conductor is reduced.
In one embodiment, the composite reinforcement core 2 may include a plurality of first mandrels 22, with all of the first mandrels 22 being encased within a first epoxy layer 24.
In one embodiment, the conductive wire 11 in the conductive layer 1 is a soft aluminum type wire or an aluminum alloy wire, which both can perform a good conductive function and is convenient to process and twist.
Further, as the aluminum alloy wire, a heat-resistant or super heat-resistant aluminum alloy wire can be used.
In one embodiment, conductive line 11 is circular in cross-section.
In another embodiment, as shown in fig. 1, the cross section of the conductive wire 11 may be trapezoidal, which may make the twisted structure of the conductive layer 1 more stable and compact.
In another embodiment, the cross section of the conductive wire 11 may also be SZ-shaped, so that the twisted structure of the conductive layer 1 may be more stable and compact.
In one embodiment, a plurality of conductive layers 1 are disposed outside the composite reinforcement core 2 to enhance the conductive effect. For example, two conductive layers 1 are provided in fig. 1.
Further, the outer surface of the outermost conductive layer 1 can be provided with an arc-shaped groove to reduce wind resistance; in addition, the outer surface of the outermost conductive layer 1 may be subjected to sand blasting to form a matte surface, thereby reducing the surface light reflection rate of the overhead conductor.
Example two
The difference between this embodiment and the first embodiment is: as shown in fig. 2, the aramid fiber member 21 is in a belt shape, the composite reinforcing core 2 includes a second core rod 25, the aramid fiber member 21, and a second epoxy resin layer 26, which are sequentially arranged from inside to outside, the aramid fiber member 21 is wrapped outside the second core rod 25, and the second core rod 25 is a carbon fiber rod.
The second epoxy resin layer 26 serves as a curing structure and also as a protection for the aramid fiber 21 and the second mandrel 25 therein.
Further, the thickness of the second epoxy resin layer 26 is 0.1mm to 0.5mm, which is not easily excessive to avoid an increase in the overall weight.
In one embodiment, the tape-shaped aramid fiber member 21 is wrapped around the second core rod 25 to improve structural stability.
In one embodiment, the conductive wire 11 in the conductive layer 1 is a soft aluminum type wire or an aluminum alloy wire, which both can perform a good conductive function and is convenient to process and twist.
Further, as the aluminum alloy wire, a heat-resistant or super heat-resistant aluminum alloy wire can be used.
In one embodiment, conductive line 11 is circular in cross-section.
In another embodiment, as shown in fig. 2, the cross section of the conductive wire 11 may be trapezoidal, so that the twisted structure of the conductive layer 1 is more stable and compact.
In another embodiment, the cross section of the conductive wire 11 may also be SZ-shaped, so that the twisted structure of the conductive layer 1 may be more stable and compact.
In one embodiment, a plurality of conductive layers 1 are disposed outside the composite reinforcement core 2 to enhance the conductive effect. For example, two conductive layers 1 are provided in fig. 2.
Further, the outer surface of the outermost conductive layer 1 can be provided with an arc-shaped groove to reduce wind resistance; in addition, the outer surface of the outermost conductive layer 1 may be subjected to sand blasting to form a matte surface, thereby reducing the surface light reflection rate of the overhead conductor.
EXAMPLE III
The difference between this embodiment and the first embodiment is: as shown in fig. 3, the composite reinforcement core 2 includes a middle core 27, a plurality of metal strands 28 are stranded outside the middle core 27, an aramid fiber member 21 is stranded in a gap between two adjacent metal strands 28, and both the middle core 27 and the metal strands 28 adopt an aluminum-clad steel core structure.
The aramid fiber member 21 is an aramid fiber tow. The direction of twist of the aramid fiber member 21 is the same as the direction of twist of the metal strands 28.
Further, aramid fiber part 21 in adjacent two strands of metal strands 28 and its clearance is tangent setting, and this aramid fiber part 21 and conducting layer 1 also are tangent setting to aramid fiber part 21 can fall into among the clearance of natural transposition, so do not influence the whole diameter of air wire.
For example, referring to fig. 3, the composite reinforced core 2 of this structure includes a central core 27, six metal strands 28, and six aramid fiber members 21, and one aramid fiber member 21 is twisted in the gap between two adjacent metal strands 28.
In one embodiment, the conductive wire 11 in the conductive layer 1 is a soft aluminum type wire or an aluminum alloy wire, which both can perform a good conductive function and is convenient to process and twist.
Further, as the aluminum alloy wire, a heat-resistant or super heat-resistant aluminum alloy wire can be used.
In one embodiment, as shown in fig. 3, the conductive line 11 has a circular cross-section.
In another embodiment, the cross section of the conductive wire 11 may be trapezoidal, so that the twisted structure of the conductive layer 1 may be more stable and compact.
In another embodiment, the cross section of the conductive wire 11 may also be SZ-shaped, so that the twisted structure of the conductive layer 1 may be more stable and compact.
In one embodiment, a plurality of conductive layers 1 are disposed outside the composite reinforcement core 2 to enhance the conductive effect. For example, two conductive layers 1 are provided in fig. 3.
Further, the outer surface of the outermost conductive layer 1 can be provided with an arc-shaped groove to reduce wind resistance; in addition, the outer surface of the outermost conductive layer 1 may be subjected to sand blasting to form a matte surface, thereby reducing the surface light reflection rate of the overhead conductor.
Example four
The difference between this embodiment and the first embodiment is: as shown in fig. 4, the aramid fiber member 21 is in a belt shape, the composite reinforcement core 2 includes an inner core 29, the aramid fiber member 21 is wrapped outside the inner core 29, the inner core 29 includes a middle core 27 and a plurality of metal strands 28 twisted outside the middle core 27, and both the middle core 27 and the metal strands 28 adopt an aluminum-clad steel core structure.
In one embodiment, the tape-shaped aramid fiber member 21 is wrapped around the core 29 to improve structural stability.
In one embodiment, the conductive wire 11 in the conductive layer 1 is a soft aluminum type wire or an aluminum alloy wire, which both can perform a good conductive function and is convenient to process and twist.
Further, as the aluminum alloy wire, a heat-resistant or super heat-resistant aluminum alloy wire can be used.
In one embodiment, as shown in fig. 4, the conductive line 11 has a circular cross-section.
In another embodiment, the cross section of the conductive wire 11 may be trapezoidal, so that the twisted structure of the conductive layer 1 may be more stable and compact.
In another embodiment, the cross section of the conductive wire 11 may also be SZ-shaped, so that the twisted structure of the conductive layer 1 may be more stable and compact.
In one embodiment, a plurality of conductive layers 1 are disposed outside the composite reinforcement core 2 to enhance the conductive effect. For example, two conductive layers 1 are provided in fig. 4.
Further, the outer surface of the outermost conductive layer 1 can be provided with an arc-shaped groove to reduce wind resistance; in addition, the outer surface of the outermost conductive layer 1 may be subjected to sand blasting to form a matte surface, thereby reducing the surface light reflection rate of the overhead conductor.
According to the overhead conductor of the embodiment, the aramid fiber part is added into the composite reinforcing core, so that the aramid fiber part and the carbon fiber are compounded, or the aramid fiber part and the metal stranded wire inner core are compounded, the dead weight of the overhead conductor can be effectively reduced, and the overhead conductor has the advantages of high strength, low density, large capacity (conductor conveying capacity), low sag, corrosion resistance, high temperature resistance and the like, so that the service performance of the overhead conductor is effectively improved, and the effective guarantee is provided for the safe and stable operation of an overhead transmission line; the energy loss in the running process of the line can be effectively reduced, and the economical efficiency of the lead is improved; in addition, the tower load and the height of the tower body can be reduced, tower materials can be effectively saved, and the laying cost is saved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.
Claims (10)
1. An overhead conductor with a composite reinforcing core, characterized in that: the composite reinforcing core comprises a conductive layer and a composite reinforcing core, wherein the conductive layer comprises a plurality of conductive wires, the conductive wires in the conductive layer are all twisted outside the composite reinforcing core, and aramid fiber parts are arranged in the composite reinforcing core.
2. The overhead conductor having a composite reinforcing core of claim 1, wherein: aramid fiber spare is filiform, compound reinforcement core includes first plug and the first epoxy layer that sets gradually from inside to outside, it has aramid fiber spare and carbon fiber silk to embed on the first plug.
3. The overhead conductor having a composite reinforcing core of claim 2, wherein: the first core rod is an epoxy resin rod.
4. The overhead conductor having a composite reinforcing core of claim 2, wherein: the sum of the number of the carbon fiber filaments and the number of the aramid fiber pieces is recorded as the total number of the fibers, and the number of the aramid fiber pieces is 20% -50% of the total number of the fibers.
5. The overhead conductor having a composite reinforcing core of claim 1, wherein: the aramid fiber spare is the banding, compound reinforcement core includes by interior and second plug, aramid fiber spare and the second epoxy layer that sets gradually outward, the cladding of aramid fiber spare is in on the second plug, the second plug is the carbon fiber stick.
6. The overhead conductor having a composite reinforcing core of claim 1, wherein: the composite reinforced core comprises a middle core, a plurality of metal stranded wires are stranded outside the middle core, aramid fiber parts are stranded in gaps between every two adjacent metal stranded wires, and the middle core and the metal stranded wires are both of aluminum-clad steel core structures.
7. The overhead conductor having a composite reinforcing core of claim 1, wherein: aramid fiber spare is banded, compound enhancement core includes the inner core, aramid fiber spare cladding is in the inner core is outside, the inner core includes middle part core and the stranded metal strand wires of transposition at middle part core outside, middle part core and metal strand wires all adopt aluminium package steel core structure.
8. The overhead conductor having a composite reinforcing core of claim 1, wherein: the conductive wire is a soft aluminum type wire or an aluminum alloy wire.
9. The overhead conductor having a composite reinforcing core of claim 1, wherein: the cross section of the conductive wire is trapezoidal.
10. The overhead conductor having a composite reinforcing core of claim 1, wherein: and a plurality of conductive layers are arranged outside the composite reinforced core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962341.5U CN216487463U (en) | 2021-11-29 | 2021-11-29 | Overhead conductor with composite reinforced core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962341.5U CN216487463U (en) | 2021-11-29 | 2021-11-29 | Overhead conductor with composite reinforced core |
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| Publication Number | Publication Date |
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| CN216487463U true CN216487463U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122962341.5U Active CN216487463U (en) | 2021-11-29 | 2021-11-29 | Overhead conductor with composite reinforced core |
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| CN (1) | CN216487463U (en) |
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- 2021-11-29 CN CN202122962341.5U patent/CN216487463U/en active Active
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