CN210805330U - High-voltage shielding wire - Google Patents
High-voltage shielding wire Download PDFInfo
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- CN210805330U CN210805330U CN201922499422.9U CN201922499422U CN210805330U CN 210805330 U CN210805330 U CN 210805330U CN 201922499422 U CN201922499422 U CN 201922499422U CN 210805330 U CN210805330 U CN 210805330U
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- 239000004065 semiconductor Substances 0.000 claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 119
- 239000000945 filler Substances 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000009970 fire resistant effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical field of the electric power cable technique and specifically relates to a high-voltage shielded wire is related to. Among the prior art's high-voltage cable, the sinle silk is encloseed in protecting layer upon layer, the sinle silk is electrically conductive can produce the heat, can store up the heat in the cable, when the heat stores up more, it can cause the conflagration to reach the material ignition, there is the conflagration hidden danger, this scheme includes the sinle silk, be equipped with first semiconductor shield on the outer wall of sinle silk, be equipped with the insulating layer on the first semiconductor shield outer wall, be equipped with the second semiconductor shield on the outer wall of insulating layer, be equipped with the copper strips shielding layer on the outer wall of second semiconductor shield, the periphery of copper strips shielding layer is equipped with the inoxidizing coating, the periphery of inoxidizing coating is equipped with binds the. This scheme can carry out heat conduction and protection to the inside of cable, reduces the condition that the conflagration took place.
Description
Technical Field
The utility model belongs to the technical field of the electric power cable technique and specifically relates to a high-voltage shielded wire is related to.
Background
High voltage lines are nowadays usually referred to as transmission lines which carry voltages above 10kV (including 10 kV). High-voltage transmission is generally transmitted underground by cables with insulating layers in cities, and is transmitted by overhead lines carried by iron towers in the field. Modern society, productivity is highly developed, high-voltage circuit transmission and conversion applications are wide, and high-voltage cables are used in more and more occasions.
But among the prior art's high-voltage cable, the sinle silk is enclosed in protecting layer upon layer, and the sinle silk is electrically conductive can produce the heat, and the heat can be piled up in the cable, when the heat piles up when great, reaches the material ignition and can initiate the conflagration, has the conflagration hidden danger.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-voltage shielding line can carry out heat conduction and protection to the inside of cable, reduces the condition that the conflagration took place.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a high-voltage shielded wire, includes the sinle silk, be equipped with first semiconductor shield on the outer wall of sinle silk, be equipped with the insulating layer on the first semiconductor shield outer wall, be equipped with second semiconductor shield on the outer wall of insulating layer, be equipped with copper strips shielding layer on the outer wall of second semiconductor shield, copper strips shielding layer's periphery is equipped with the inoxidizing coating, the periphery of inoxidizing coating is equipped with binds the layer, it strengthens the core to bind the in-situ being equipped with, strengthen the coaxial air guide strip of having seted up of core.
By adopting the technical scheme, the first semiconductor shielding layer is used for homogenizing the electric field on the outer surface of the wire core, so that the situation that partial discharge occurs between the wire core and the insulation due to unsmooth surface of the wire core and air gaps generated by stranding of the wire core is avoided; the second semiconductor shielding layer is in good contact with the outer surface of the insulating layer, so that the occurrence of partial discharge caused by the generation of defects such as cracks on the insulating surface is reduced; the first semiconductor shielding layer and the second semiconductor shielding layer shield the high-voltage wire core, so that the double protection has strong anti-electromagnetic interference capability to the outside, and is beneficial to long-distance electric energy transmission;
the insulating layer ensures good insulativity of the wire core, and the copper strip shielding layer is used for shielding the action of an electric field, so that the anti-interference effect of the wire core is improved; the protective layer protects the copper strip shielding layer and all internal components, so that the safety of wire core transmission is improved; strengthen the core and improve the intensity of whole cable, bind the layer with sinle silk and strengthen the core fixed whole as complete cable, play the guard action simultaneously, the air guide strip is arranged in the air current to flow in strengthening the core, sets up the fan that is used for leading to the air guide strip air current at the tip of cable, makes the gas flow in the air guide strip get up to the cooling is strengthened the core and will be binded the in situ heat that produces and take away, reduces the condition that the conflagration took place.
The utility model discloses further set up to: the cable cores are arranged in the binding layer in a plurality of ways, the reinforcing cores are arranged at the circle center of the binding layer, and the cable cores are distributed on the outer circumference of the reinforcing cores.
By adopting the technical scheme, the electric energy transmission capacity of the cable is increased by the plurality of arranged wire cores, and meanwhile, the number of the wire cores can be increased or reduced according to different conditions; the reinforcing core is arranged in the circle center, so that the central part which is most prone to residual heat is cooled, the temperature in the binding layer is reduced to the maximum extent, and the heat dissipation effect is improved; all the wire cores are distributed circumferentially, so that residual heat towards the center can be cooled, and fire hazard is reduced.
The utility model discloses further set up to: the inner cavity of the binding layer is provided with filler.
By adopting the technical scheme, the filler enables the structure in the binding layer to be more stable, and the relative movement between the wire cores is reduced.
The utility model discloses further set up to: the binding layer is internally provided with a plastic layer which surrounds the filler, and the body of the plastic layer is provided with a plurality of air channel strips along the length direction of the plastic layer.
Through adopting above-mentioned technical scheme, the tip at the cable sets up the fan, ventilates in the air flue strip, makes the gas flow in the air flue strip get up, carries out heat conduction and cooling to the outside of sinle silk, reduces the probability that the conflagration takes place, and the air flue strip of a plurality of settings improves heat conduction effect.
The utility model discloses further set up to: and a waterproof layer is arranged between the binding layer and the plastic layer.
Through adopting above-mentioned technical scheme, the waterproof layer improves the waterproof performance of cable, reduces moisture such as rainwater and gets into the normal electric energy transport that the inside influence sinle silk of binding layer.
The utility model discloses further set up to: and a fire-resistant layer is arranged between the binding layer and the waterproof layer.
By adopting the technical scheme, the flame-retardant layer improves the flame-retardant performance of the binding layer and reduces the probability of fire.
The utility model discloses further set up to: and a net protecting layer is arranged between the fire-resistant layer and the binding layer.
Through adopting above-mentioned technical scheme, the protecting wire net layer improves the tensile strength of the outer cable of fire-resistant layer, reduces the cracked condition of cable and takes place.
The utility model discloses further set up to: the filler is internally provided with a signal wire, and the outer wall of the signal wire is provided with a first protective layer.
Through adopting above-mentioned technical scheme, the setting of signal line makes the cable can carry out control signal's transmission, improves the functionality of cable.
The utility model discloses further set up to: the filler is internally provided with a grounding wire, and the outer wall of the grounding wire is provided with a second protective layer.
Through adopting above-mentioned technical scheme, the earth connection makes the cable can carry out the ground connection operation, improves the security of cable.
To sum up, the utility model discloses a beneficial technological effect does:
1. the first semiconductor shielding layer is used for homogenizing an electric field on the outer surface of the wire core, so that the situation that partial discharge occurs between the wire core and insulation due to unsmooth surface of the wire core and air gaps generated by stranding of the wire core is avoided; the second semiconductor shielding layer is in good contact with the outer surface of the insulating layer, so that the occurrence of partial discharge caused by the generation of defects such as cracks on the insulating surface is reduced; the first semiconductor shielding layer and the second semiconductor shielding layer shield the high-voltage wire core, so that the double protection has strong anti-electromagnetic interference capability to the outside, and is beneficial to long-distance electric energy transmission;
2. the insulating layer ensures good insulativity of the wire core, and the copper strip shielding layer is used for shielding the action of an electric field, so that the anti-interference effect of the wire core is improved; the protective layer protects the copper strip shielding layer and all internal components, so that the safety of wire core transmission is improved; strengthen the core and improve the intensity of whole cable, bind the layer with sinle silk and strengthen the core fixed whole as complete cable, play the guard action simultaneously, the air guide strip is arranged in the air current to flow in strengthening the core, sets up the fan that is used for leading to the air guide strip air current at the tip of cable, makes the gas flow in the air guide strip get up to the cooling is strengthened the core and will be binded the in situ heat that produces and take away, reduces the condition that the conflagration took place.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the present embodiment.
In the figure, 1, a binding layer; 2. a protective net layer; 3. a refractory layer; 4. a waterproof layer; 5. a plastic layer; 6. a wire core; 7. a first semiconductor shield layer; 8. an insulating layer; 9. a second semiconductor shield layer; 10. a copper strip shielding layer; 11. a protective layer; 12. a filler; 13. a reinforcing core; 14. a gas-conducting strip; 15. a signal line; 16. a first passivation layer; 17. a ground line; 18. a second protective layer; 19. an airway strip.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the high-voltage shielding wire comprises a binding layer 1, wherein an inner cavity of the binding layer 1 is sequentially provided with a net protecting layer 2, a fire-resistant layer 3, a waterproof layer 4 and a plastic layer 5, and three wire cores 6 are arranged in an inner cavity of the plastic layer 5.
The outer wall of each core 6 is provided with a first semiconducting shield layer 7, the first semiconducting shield layer 7 typically being of a semiconducting material with a very low resistivity and a relatively thin thickness.
An insulating layer 8 is arranged on the outer wall of the first semiconductor shielding layer 7, and the insulating layer 8 can be made of fluorinated ethylene propylene or tetrafluoroethylene and perfluoroalkyl vinyl ether copolymer, so that the cable is ensured to have excellent electrical insulating property, excellent chemical resistance, thermal stability and mechanical strength.
A second semiconductor shielding layer 9 is disposed on the outer wall of the insulating layer 8, and the second semiconductor shielding layer 9 is also made of a semiconducting material with low resistivity and a small thickness.
As shown in fig. 1, a copper tape shielding layer 10 is disposed on the outer wall of the second semiconductor shielding layer 9, and the copper tape shielding layer 10 is usually formed by wrapping a copper tape or a copper wire, and mainly plays a role in shielding an electric field.
The periphery of the copper strip shielding layer 10 is provided with a protective layer 11, and the material of the protective layer 11 is a polyvinyl chloride sheath, so that components in the protective layer 11 are protected.
The inner cavity of the plastic layer 5 is filled with a filler 12, and the filler 12 is made of polyethylene or silicon rubber with low density. The filler 12 makes the structure in the plastic layer 5 more stable and reduces the relative movement between the wire cores 6.
As shown in fig. 1, the center of the three wire cores 6 is provided with a reinforcing core 13, and the reinforcing core 13 improves the strength of the whole cable. The aramid fiber with large tension and small density is adopted as the material of the reinforced core 13, and has the characteristics of light weight, friction resistance and good flexibility.
The air guide strip 14 is coaxially arranged on the reinforcing core 13, the end of the cable is provided with a fan used for ventilating the air guide strip 14, so that air in the air guide strip 14 flows, the reinforcing core 13 is cooled, heat generated in the binding layer 1 is taken away, and the fire disaster is reduced.
The binding layer 1 fixes the wire core 6 and the reinforcing core 13 into a complete cable whole body, and plays a role in protection, the binding layer 1 is made of polyurethane, and the polyurethane has the characteristics of softness, high tensile strength, wear resistance, oil resistance, aging resistance and the like.
As shown in fig. 1, the body of the plastic layer 5 is provided with a plurality of air channel strips 19 along the length direction of the plastic layer 5, the end part of the cable is provided with a fan to ventilate the air channel strips 19, so that the air in the air channel strips 19 flows, the outside of the filler 12 is conducted with heat conduction and cooling, and the probability of fire occurrence is reduced.
As shown in fig. 1, the flame retardant coating 3 improves the flame resistance of the binding layer 1, and reduces the probability of fire, and the flame retardant coating 3 is made of cross-linked polyethylene without halogen.
The tensile strength of the cable outside the fire-resistant layer 3 is improved by the net protection layer 2, and the occurrence of the fracture of the cable is reduced.
The filler 12 is provided with a signal line 15 to enable the cable to transmit a control signal, thereby improving the functionality of the cable. The outer wall of the signal line 15 is provided with a first protective layer 16, and the material of the first protective layer 16 is a polyvinyl chloride sheath, so as to protect the signal line 15.
As shown in fig. 1, the filler 12 is provided with a grounding wire 17, so that the cable can be grounded, and the safety of the cable is improved, wherein the grounding wire 17 is made of tinned copper wires, and the tinned copper wires enable the grounding wire to have good corrosion resistance and weldability. The outer wall of the ground wire 17 is provided with a second protective layer 18, and the material of the second protective layer 18 is also a polyvinyl chloride sheath, so that the ground wire 17 is protected.
The working process is as follows:
the end part of the cable is provided with the fan, the air guide strips 14 and the air channel strips 19 are ventilated through the fan, so that air in the air guide strips 14 and the air channel strips 19 flows, the reinforcing core 13 is cooled, heat generated in the binding layer 1 is taken away, and the fire disaster is reduced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. A high voltage shielded wire, comprising a wire core (6), characterized in that: be equipped with first semiconductor shield layer (7) on the outer wall of sinle silk (6), be equipped with insulating layer (8) on first semiconductor shield layer (7) outer wall, be equipped with second semiconductor shield layer (9) on the outer wall of insulating layer (8), be equipped with copper tape shielding layer (10) on the outer wall of second semiconductor shield layer (9), the periphery of copper tape shielding layer (10) is equipped with inoxidizing coating (11), the periphery of inoxidizing coating (11) is equipped with binds layer (1), it strengthens core (13) to be equipped with in layer (1), strengthen core (13) coaxial air guide strip (14) of having seted up.
2. The high voltage shielded wire of claim 1, wherein: the cable cores (6) are arranged in the binding layer (1) in a plurality of ways, the reinforcing core (13) is arranged at the circle center of the binding layer (1), and the cable cores (6) are distributed on the outer circumference of the reinforcing core (13).
3. The high voltage shielded wire of claim 1, wherein: the inner cavity of the binding layer (1) is provided with a filler (12).
4. A high voltage shielded wire according to claim 3, wherein: the plastic layer (5) surrounding the filler (12) is arranged in the binding layer (1), and a plurality of air channel strips (19) along the length direction of the plastic layer (5) are arranged on the body of the plastic layer (5).
5. The high voltage shielded wire of claim 4, wherein: a waterproof layer (4) is arranged between the binding layer (1) and the plastic layer (5).
6. The high voltage shielded wire of claim 5, wherein: a fire-resistant layer (3) is arranged between the binding layer (1) and the waterproof layer (4).
7. The high voltage shielded wire of claim 6, wherein: and a net protecting layer (2) is arranged between the fire-resistant layer (3) and the binding layer (1).
8. A high voltage shielded wire according to claim 3, wherein: a signal wire (15) is arranged in the filler (12), and a first protective layer (16) is arranged on the outer wall of the signal wire (15).
9. A high voltage shielded wire according to claim 3, wherein: the filler (12) is internally provided with a grounding wire (17), and the outer wall of the grounding wire (17) is provided with a second protective layer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922499422.9U CN210805330U (en) | 2019-12-31 | 2019-12-31 | High-voltage shielding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922499422.9U CN210805330U (en) | 2019-12-31 | 2019-12-31 | High-voltage shielding wire |
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| Publication Number | Publication Date |
|---|---|
| CN210805330U true CN210805330U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922499422.9U Active CN210805330U (en) | 2019-12-31 | 2019-12-31 | High-voltage shielding wire |
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| Country | Link |
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| CN (1) | CN210805330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834032A (en) * | 2020-08-06 | 2020-10-27 | 安徽环宇电缆集团有限公司 | High temperature resistance new forms of energy photovoltaic cable |
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2019
- 2019-12-31 CN CN201922499422.9U patent/CN210805330U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834032A (en) * | 2020-08-06 | 2020-10-27 | 安徽环宇电缆集团有限公司 | High temperature resistance new forms of energy photovoltaic cable |
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