CN217035167U - Crosslinked polyethylene insulated power cable - Google Patents
Crosslinked polyethylene insulated power cable Download PDFInfo
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- CN217035167U CN217035167U CN202121933210.8U CN202121933210U CN217035167U CN 217035167 U CN217035167 U CN 217035167U CN 202121933210 U CN202121933210 U CN 202121933210U CN 217035167 U CN217035167 U CN 217035167U
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Abstract
The utility model belongs to the technical field of power cables, and particularly relates to a crosslinked polyethylene insulated power cable which comprises a traction rope, a cable core and an insulating sleeve, wherein the cable core is sleeved outside the traction rope, the traction rope and the cable core are divided into three groups which are distributed on the inner side of the insulating sleeve in an annular array manner, and a filling layer is arranged inside the insulating sleeve. This crosslinked polyethylene insulated power cable, surface through setting up the insulating sleeve is provided with resistance to compression anti-aging device, and resistance to compression anti-aging device includes the resistance to compression heat dissipation layer, the inner wall on resistance to compression heat dissipation layer cup joints with the external surface mounting of insulating sleeve, the protection of carrying out the elasticity shrink to the cable core has been reached, and it is waterproof, high temperature resistant and anticorrosive effect, it all is simple structure mostly to have solved current crosslinked polyethylene insulated cable, in case receive the extrusion of external force easily to lead to the cable core to damage, thereby cause high amount of maintenance cost, and easily receive adverse circumstances's influence to lead to the cable to accelerate ageing, reduce cable life's problem.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a crosslinked polyethylene insulated power cable.
Background
The power cable is used for transmitting and distributing electric energy, the power cable is often used in urban underground power grid, power station leading-out line, power supply in industrial and mining enterprises and transmission line under river-crossing seawater, in the power line, the proportion of the cable is gradually increased, the power cable is a cable product used for transmitting and distributing high-power electric energy in the trunk line of the power system, and the crosslinked polyethylene insulated power cable has the advantages of good electrical performance, large transmission capacity, high drop or vertical laying, installation and maintenance, and the like, and is widely applied in the high-voltage and ultrahigh-voltage cable field.
Most of the existing crosslinked polyethylene insulated cables are simple in structure, and once the cable cores are easily damaged due to extrusion of external force, the high maintenance cost is caused, the cable is easily accelerated to age due to the influence of severe environment, and the service life of the cable is shortened.
SUMMERY OF THE UTILITY MODEL
Based on the technical problems that most of the existing crosslinked polyethylene insulated cables are simple in structure, once the cable cores are easily damaged by extrusion of external force, high maintenance cost is caused, the cable is easily influenced by severe environment, the aging of the cable is accelerated, and the service life of the cable is shortened, the utility model provides the crosslinked polyethylene insulated power cable.
The utility model provides a crosslinked polyethylene insulated power cable which comprises a traction rope, a cable core and an insulating sleeve, wherein the cable core is sleeved outside the traction rope, the traction rope and the cable core are divided into three groups which are distributed on the inner side of the insulating sleeve in an annular array manner, a filling layer is arranged inside the insulating sleeve, and the filling layer is made of glass fiber cloth material;
the surface of insulating cover is provided with resistance to compression anti-aging device, and resistance to compression anti-aging device includes the resistance to compression heat dissipation layer, the inner wall on resistance to compression heat dissipation layer with the external fixed surface of insulating cover cup joints.
Preferably, the pressure-resistant heat dissipation layer is made of a silica gel material, and rectangular heat dissipation holes distributed in an annular array are formed in the front surface of the pressure-resistant heat dissipation layer;
through above-mentioned technical scheme, the haulage rope plays and bears partial pulling force when the cable is dilatory, the effect of protection cable core, and the rectangle louvre plays and carries out the effect of heat transfer fast to the inside temperature of cable.
Preferably, the inner bottom walls of the rectangular heat dissipation holes are fixedly connected with return springs, the free ends of one ends of the return springs are fixedly connected with the inner top walls of the rectangular heat dissipation holes, and the outer surface of the pressure-resistant heat dissipation layer is fixedly sleeved with a heat insulation layer;
through above-mentioned technical scheme, reset spring plays and drives rectangular heat dissipation hole shrink deformation and drive its effect that resets after pressure disappears when the cable receives external force extrusion.
Preferably, the heat insulation layer is made of asbestos fiber materials, and a waterproof layer is fixedly sleeved on the outer surface of the heat insulation layer;
through above-mentioned technical scheme, the insulating layer plays the effect of isolated outside heat entering cable.
Preferably, the waterproof layer is made of a butyl rubber material, a thick steel wire armor layer is fixedly sleeved on the outer surface of the waterproof layer, and a wear-resistant layer is fixedly sleeved on the outer surface of the thick steel wire armor layer;
through above-mentioned technical scheme, the waterproof layer plays and prevents waterproofly to inside of cable, guarantees the security of its work, and thick steel wire armor plays the intensity that increases the cable, prevents that the worm and mouse from stinging the effect of breaking the cable.
Preferably, the wear-resistant layer is made of a wear-resistant rubber material, an anticorrosive layer is fixedly sleeved on the outer surface of the wear-resistant layer, and the anticorrosive layer is made of a polyurethane paint material;
through above-mentioned technical scheme, the wearing layer plays and prevents that the cable from moving the effect that the friction leads to damaging repeatedly in the installation, and the anticorrosive coating plays and protects the cable anticorrosion, increase of service life, and improves the insulating nature's of cable effect.
The beneficial effects of the utility model are as follows:
the surface through setting up the insulating cover is provided with resistance to compression anti-aging device, and resistance to compression anti-aging device includes resistance to compression heat dissipation layer, the inner wall on resistance to compression heat dissipation layer cup joints with the external fixed surface of insulating cover, the protection of carrying out the elastic shrinkage to the cable core has been reached, and waterproof, high temperature resistant and anticorrosive effect, it all is simple structure mostly to have solved current crosslinked polyethylene insulated cable, in case the extrusion that receives external force easily leads to the cable core to damage, thereby cause high maintenance cost, and easily receive adverse circumstances's influence to lead to the cable to accelerate ageing, reduce cable life's problem.
Drawings
FIG. 1 is a schematic view of a cross-linked polyethylene insulated power cable;
FIG. 2 is a front view of a cross-linked polyethylene insulated power cable;
fig. 3 is an enlarged view of a structure a of a cross-linked polyethylene insulated power cable in fig. 2.
In the figure: 1. a hauling rope; 2. a cable core; 3. an insulating sleeve; 4. a filling layer; 41. a compression-resistant heat dissipation layer; 42. rectangular heat dissipation holes; 43. a return spring; 44. a thermal insulation layer; 45. a waterproof layer; 46. a thick steel wire armor layer; 47. a wear layer; 48. and (4) an anticorrosive layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a cross-linked polyethylene insulated power cable comprises a traction rope 1, a cable core 2 and an insulating sleeve 3, wherein the cable core 2 is sleeved outside the traction rope 1, the traction rope 1 and the cable core 2 are divided into three groups and distributed inside the insulating sleeve 3 in an annular array manner, a filling layer 4 is arranged inside the insulating sleeve 3, and the filling layer 4 is made of glass fiber cloth material;
the surface of insulating cover 3 is provided with resistance to compression anti-aging device, and resistance to compression anti-aging device includes resistance to compression heat dissipation layer 41, and the inner wall on resistance to compression heat dissipation layer 41 cup joints with the external surface mounting of insulating cover 3.
Further, resistance to compression heat dissipation layer 41 is made by the silica gel material, and the rectangle louvre 42 that is the annular array and distributes is seted up in resistance to compression heat dissipation layer 41's the front, and haulage rope 1 plays and bears partial pulling force when the cable is dilatory, the effect of protection cable core 2, and rectangle louvre 42 plays the effect of carrying out the heat transfer to the inside temperature of cable fast.
Further, the equal fixedly connected with reset spring 43 of the interior diapire of a plurality of rectangle louvres 42, the one end free end of a plurality of reset springs 43 all with rectangle louvre 42's interior roof fixed connection, the external surface mounting of resistance to compression heat dissipation layer 41 has cup jointed insulating layer 44, reset spring 43 plays and drives rectangular louvre 42 shrink deformation and drive its effect that resets after pressure disappears when the cable receives external force extrusion.
Further, the heat insulation layer 44 is made of asbestos fiber materials, a waterproof layer 45 is fixedly sleeved on the outer surface of the heat insulation layer 44, and the heat insulation layer 44 plays a role in isolating external heat from entering the cable.
Furthermore, waterproof layer 45 is made by butyl rubber material, and the external fixed surface of waterproof layer 45 has cup jointed thick steel wire armor 46, and the external fixed surface of thick steel wire armor 46 has cup jointed wearing layer 47, and waterproof layer 45 plays and prevents the inside waterproof of cable, guarantees the security of its work, and thick steel wire armor 46 plays the intensity that increases the cable, prevents the effect that the worm and mouse from stinging the broken cable.
Furtherly, wearing layer 47 is made by wear-resisting rubber materials, and wearing layer 47's the fixed cover in surface has connect anticorrosive coating 48, and anticorrosive coating 48 is made by polyurethane paint materials, and wearing layer 47 plays and prevents that the cable from moving the effect that the friction leads to the damage repeatedly in the installation, and anticorrosive coating 48 plays and carries out the anticorrosion protection to the cable, increase of service life, and the insulating effect of the improvement cable.
Be provided with resistance to compression anti-aging device through the surface that sets up insulating cover 3, and resistance to compression anti-aging device includes resistance to compression heat dissipation layer 41, the inner wall of resistance to compression heat dissipation layer 41 cup joints with insulating cover 3's external fixation, the protection of carrying out the elastic shrinkage has been reached cable core 2, and waterproof, high temperature resistant and anticorrosive effect has, it all is simple structure mostly to have solved current crosslinked polyethylene insulated cable, in case the extrusion that receives external force easily leads to cable core 2 to damage, thereby cause high maintenance cost, and easily receive adverse circumstances's influence to lead to the cable to accelerate ageing, reduce cable life's problem.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.
Claims (6)
1. The utility model provides a crosslinked polyethylene insulated power cable, includes haulage rope (1), cable core (2) and insulating cover (3), its characterized in that: the cable cores (2) are all sleeved on the outer side of the traction rope (1), the traction rope (1) and the cable cores (2) are divided into three groups which are distributed on the inner side of the insulating sleeve (3) in an annular array mode, a filling layer (4) is arranged inside the insulating sleeve (3), and the filling layer (4) is made of glass fiber cloth materials;
the surface of insulating cover (3) is provided with resistance to compression anti-aging device, and resistance to compression anti-aging device includes resistance to compression heat dissipation layer (41), the inner wall on resistance to compression heat dissipation layer (41) with the external fixation of insulating cover (3) cup joints.
2. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the pressure-resistant heat dissipation layer (41) is made of a silica gel material, and rectangular heat dissipation holes (42) distributed in an annular array are formed in the front face of the pressure-resistant heat dissipation layer (41).
3. A crosslinked polyethylene insulated power cable according to claim 2, characterized in that: a plurality of the equal fixedly connected with reset spring (43) of interior diapire of rectangle louvre (42), it is a plurality of the one end free end of reset spring (43) all with the interior roof fixed connection of rectangle louvre (42), the external fixed surface of resistance to compression heat dissipation layer (41) has cup jointed insulating layer (44).
4. A crosslinked polyethylene insulated power cable according to claim 3, characterized in that: the heat insulation layer (44) is made of asbestos fiber materials, and a waterproof layer (45) is fixedly sleeved on the outer surface of the heat insulation layer (44).
5. A crosslinked polyethylene insulated electric power cable according to claim 4, characterized in that: the waterproof layer (45) is made of a butyl rubber material, a thick steel wire armor layer (46) is fixedly sleeved on the outer surface of the waterproof layer (45), and a wear-resistant layer (47) is fixedly sleeved on the outer surface of the thick steel wire armor layer (46).
6. A crosslinked polyethylene insulated electric power cable according to claim 5, characterized in that: the wear-resistant layer (47) is made of a wear-resistant rubber material, an anti-corrosion layer (48) is fixedly sleeved on the outer surface of the wear-resistant layer (47), and the anti-corrosion layer (48) is made of a polyurethane paint material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121933210.8U CN217035167U (en) | 2021-08-18 | 2021-08-18 | Crosslinked polyethylene insulated power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121933210.8U CN217035167U (en) | 2021-08-18 | 2021-08-18 | Crosslinked polyethylene insulated power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035167U true CN217035167U (en) | 2022-07-22 |
Family
ID=82410888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121933210.8U Active CN217035167U (en) | 2021-08-18 | 2021-08-18 | Crosslinked polyethylene insulated power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035167U (en) |
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2021
- 2021-08-18 CN CN202121933210.8U patent/CN217035167U/en active Active
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