CN112233848A

CN112233848A - Parallel high-load cluster overhead cable

Info

Publication number: CN112233848A
Application number: CN202011238884.6A
Authority: CN
Inventors: 刘永伟; 贺云芳; 马建平; 张镇球; 吴健
Original assignee: Wuxi New Sunshine Cable Co ltd
Current assignee: Wuxi New Sunshine Cable Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-01-15

Abstract

The invention discloses a parallel high-load cluster overhead cable which comprises a first pipe body, wherein a second pipe body is arranged inside the first pipe body, three third grooves are formed in the inner side wall of the first pipe body at equal intervals, a first insulating layer is bonded on the inner side wall of each third groove, a first cable is bonded on the inner side of each first insulating layer, a second cable is arranged inside the second pipe body, a second insulating layer is bonded on the outer side wall of each second cable, the outer side wall of each second insulating layer is bonded on the inner side wall of the corresponding second pipe body, and three connecting rods are welded on the outer side wall of each second pipe body at equal intervals; through setting up the heat-conducting layer in the outside on fire-retardant layer, the bubble is cotton also can assist the heat dissipation in the buffering, and the polymer ventilated membrane only allows gas to pass through, and then when avoiding aerial [ insulated ] cable high load, the heat accumulation of production has solved the cable resistance increase in the inside of bearer layer, the too high problem of electric energy loss in the transportation.

Description

Parallel high-load cluster overhead cable

Technical Field

The invention relates to the technical field of overhead cables, in particular to a parallel high-load cluster overhead cable.

Background

The overhead cable is a special cable made by adopting a production process similar to that of a crosslinked cable, is a new power transmission mode between the overhead cable and an underground cable, is a single-core overhead cable, can be divided into a duralumin wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core thread structure (the wire core can be duralumin or duralumin wire) and the like according to different structures, and has the main characteristics of high power supply reliability, good power supply safety, convenience in erection and maintenance, reasonable economy and the like.

Current aerial [ insulated ] cable, because its load is higher during the operation, can produce the heat during the operation, the heat accumulation is in the inside of protective layer, and the radiating efficiency is low for the resistance increase of cable, and then the loss is too high in the transportation of electric energy is called, and three-core line closes the structure in the high altitude because exogenic action can make mutual friction between its inside cable, makes the insulating layer damaged, and then the cable contact causes the risk of catching a fire, for this, provides a parallel high load overhead [ insulated ] cable tied in a bundle.

Disclosure of Invention

The invention aims to provide a parallel high-load bundled overhead cable to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a parallel high-load cluster overhead cable comprises a first pipe body, wherein a second pipe body is arranged inside the first pipe body, three third grooves are formed in the inner side wall of the first pipe body in an equidistance mode, a first insulating layer is bonded to the inner side wall of each third groove, a first cable is bonded to the inner side wall of each first insulating layer, a second cable is arranged inside the second pipe body, a second insulating layer is bonded to the outer side wall of the second cable, three connecting rods are welded to the outer side wall of the second pipe body in an equidistance mode, a third arc-shaped plate is welded to one end, away from the second pipe body, of each connecting rod, a third insulating layer is bonded to the inner side wall of the third arc-shaped plate, the inner side of the third insulating layer is bonded to the outer side wall of the first cable, and a flame-retardant layer is arranged on the outer side wall of the first pipe body, the outer side wall of the flame-retardant layer is bonded with the heat conduction layer, the outer side wall of the heat conduction layer is bonded with the foam, the outer side wall of the foam is bonded with the bearing layer, and the outer side wall of the bearing layer is bonded with the macromolecular breathable film.

As further preferable in the present technical solution: first recess has been seted up to the cotton lateral wall of bubble, the inside wall laminating of first recess has first arc, the lateral wall of bearer layer is equipped with the second arc, the outside of first arc with the outside of second arc is through rivet fixed connection.

As further preferable in the present technical solution: the outer side welding of second arc has first plate body, threaded groove has been seted up to one side of first plate body, threaded groove's inside wall threaded connection has the screw rod, the one end welding of screw rod has the second plate body.

As further preferable in the present technical solution: the upper surface of the second plate body is provided with a through hole.

As further preferable in the present technical solution: a sealing washer is bonded on one side of the second plate body, one side of the sealing washer is bonded on one side of the first plate body, and an anti-corrosion layer is bonded on the inner side wall of the through hole.

As further preferable in the present technical solution: the outer side wall of the bearing layer is uniformly and fixedly connected with bulges.

Compared with the prior art, the invention has the beneficial effects that: through setting up the heat-conducting layer in the outside on fire-retardant layer, the bubble is cotton also can assist the heat dissipation in the buffering, the polymer ventilated membrane only allows gas to pass through, and then when avoiding the overhead cable high load, the heat of production is gathered in the inside of bearer layer, and then the radiating efficiency has been improved, the increase of cable resistance has been solved, the too high problem of electric energy loss in the transportation, it is spacing to carry out first cable to utilize third recess and third arc, connecting plate and second body play the supporting role, and then avoided in the high altitude because exogenic action, can make mutual friction between its inside cable, make the insulating layer damaged, and then avoided the cable contact to cause the risk of catching fire.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the present invention;

fig. 3 is a schematic top view of a connection structure of a first plate, a sealing gasket and a second plate according to the present invention;

fig. 4 is a schematic side view of the connection structure of the first cable, the arc-shaped plate, the connecting rod and the second tube according to the present invention.

In the figure: 1. a first pipe body; 2. a second tube body; 3. a third groove; 4. a first insulating layer; 5. a first cable; 6. a second insulating layer; 7. a second cable; 8. a connecting rod; 9. a third arc-shaped plate; 10. a third insulating layer; 11. a flame retardant layer; 12. a heat conductive layer; 13. soaking cotton; 14. a carrier layer; 15. a first groove; 16. a first arc-shaped plate; 17. a second arc-shaped plate; 18. a first plate body; 19. a threaded groove; 20. a second plate body; 21. a screw; 22. a sealing gasket; 23. a through hole; 24. an anti-corrosion layer; 25. a protrusion; 26. a polymeric breathable film.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a parallel high-load cluster overhead cable comprises a first pipe body 1, a second pipe body 2 is arranged inside the first pipe body 1, three third grooves 3 are equidistantly formed in the inner side wall of the first pipe body 1, a first insulating layer 4 is bonded on the inner side wall of each third groove 3, a first cable 5 is bonded on the inner side of each first insulating layer 4, a second cable 7 is arranged inside the second pipe body 2, a second insulating layer 6 is bonded on the outer side wall of each second cable 7, the outer side wall of each second insulating layer 6 is bonded on the inner side wall of each second pipe body 2, three connecting rods 8 are equidistantly welded on the outer side wall of each second pipe body 2, a third arc-shaped plate 9 is welded at one end, far away from the second pipe body 2, of each connecting rod 8, a third insulating layer 10 is bonded on the inner side of each third arc-shaped plate 9, the inner side of each third insulating layer 10 is bonded on the outer side wall of each first cable 5, a, the outer side wall of the flame-retardant layer 11 is bonded with a heat conduction layer 12, the outer side wall of the heat conduction layer 12 is bonded with foam 13, the outer side wall of the foam 13 is bonded with a bearing layer 14, and the outer side wall of the bearing layer 14 is bonded with a polymer breathable film 26.

In this embodiment, specifically: the outer side wall of the foam 13 is provided with a first groove 15, the inner side wall of the first groove 15 is attached with a first arc-shaped plate 16, the outer side wall of the bearing layer 14 is provided with a second arc-shaped plate 17, and the outer side of the first arc-shaped plate 16 is fixedly connected with the outer side of the second arc-shaped plate 17 through a rivet; the first groove 15 is arranged to facilitate installation of the first arc-shaped plate 16, and the contact area between the first plate body 18 and the bearing layer 14 can be increased by arranging the first arc-shaped plate 16 and the second arc-shaped plate 17, so that the first plate body 18 is prevented from being separated from the bearing layer 14.

In this embodiment, specifically: a first plate body 18 is welded on the outer side of the second arc-shaped plate 17, a threaded groove 19 is formed in one side of the first plate body 18, a screw 21 is connected to the inner side wall of the threaded groove 19 in a threaded mode, and a second plate body 20 is welded at one end of the screw 21; the provision of the threaded grooves 19 and the threaded rods 21 facilitates the connection between the two bearing layers 14 and thus provides greater stability between the two bearing layers 14.

In this embodiment, specifically: the through hole 23 has been seted up to the upper surface of second plate body 20, sets up the through hole 23 and is convenient for the workman when the installation, utilizes the instrument to pass through hole 23 for second plate body 20 rotates, and then makes screw rod 21 and threaded groove 19 threaded connection.

In this embodiment, specifically: a sealing gasket 22 is bonded on one side of the second plate body 20, one side of the sealing gasket 22 is bonded on one side of the first plate body 18, and an anti-corrosion layer 24 is bonded on the inner side wall of the through hole 23; the sealing washer 22 is made of rubber, and the arrangement of the sealing washer 22 and the anti-corrosion layer 24 can prevent the screw 21 and the thread groove 19 from being corroded and the inside of the through hole 23 from being corroded in an external environment, so that the service life of the device is prolonged.

In this embodiment, specifically: the outer side wall of the bearing layer 14 is uniformly and fixedly connected with a bulge 25; the arrangement of the protrusion 25 can enable the small molecule rainwater to be gathered along the outer side wall of the protrusion 25, so that the rainwater is reduced to be attached to the surface of the device, and the freezing in winter is avoided.

According to the working principle or the structural principle, the heat conducting layer 12 is made of graphite, the bearing layer 14 is made of polymer composite resin, when the device is used, the second cable 7 is positioned inside the second tube body 2, the second insulating layer 6 can prevent the second cable 7 from directly contacting the second tube body 2, the first cable 5 is equidistantly arranged on the outer side of the second cable 7 under the supporting action of the connecting rod 8, slight friction or displacement between the first cable 5 and the second cable 7 can be avoided, the first cable 5 and the second cable 7 are prevented from contacting with each other, risks such as short circuit, fire and the like are avoided, the third groove 3 can limit the first cable 5, the first cable 5 is always kept inside the third groove 3 under the common action of the connecting rod 8, the first cable 5 is prevented from being separated from the third groove 3 and the third arc-shaped plate 9, the flame-retardant layer 11 can avoid the fire between the first cable 5 and the second cable 7, the flame-retardant layer 11 contains a boron composite low-smoke flame retardant, which can avoid the release of toxic smoke during combustion, easily suffocate people and affect the fire fighting work, the heat-conducting layer 12 can quickly dissipate the heat generated by the first cable 5 and the second cable 7 with high load, thereby avoiding the resistance between the first cable 5 and the second cable 7 from increasing due to the temperature rise, further reducing the loss of electric energy, and further avoiding the occurrence of fire, when the device is subjected to external force in high altitude due to the foam 13, the device can play a certain buffering role, the contact area between the first plate body 18 and the bearing layer 14 can be increased between the first plate body 18 and the bearing layer 14, further leading the connection between the first plate body 18 and the bearing layer 14 to be tighter, a worker can use a tool to rotate the second plate body 20 through the through hole 23, so that the second plate 20 drives the screw rod 21 to be in threaded connection with the threaded groove 19, so that the two bearing layers 14 are connected, and the stability of the device is further improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a parallel high load overhead cable tied in a bundle, includes first body (1), its characterized in that: the cable is characterized in that a second pipe body (2) is arranged inside the first pipe body (1), three third grooves (3) are formed in the inner side wall of the first pipe body (1) in an equal distance mode, a first insulating layer (4) is bonded to the inner side wall of each third groove (3), a first cable (5) is bonded to the inner side wall of each first insulating layer (4), a second cable (7) is arranged inside the second pipe body (2), a second insulating layer (6) is bonded to the outer side wall of each second cable (7), the outer side wall of each second insulating layer (6) is bonded to the inner side wall of the second pipe body (2), three connecting rods (8) are welded to the outer side wall of the second pipe body (2) in an equal distance mode, a third arc-shaped plate (9) is welded to one end, far away from the second pipe body (2), of each third arc-shaped plate (9) is bonded to the inner side of each third insulating layer (10, the inboard laminating of third insulating layer (10) in the lateral wall of first cable (5), the lateral wall bonding of first body (1) has fire-retardant layer (11), the lateral wall bonding of fire-retardant layer (11) has heat-conducting layer (12), the lateral wall bonding of heat-conducting layer (12) has bubble cotton (13), the lateral wall bonding of bubble cotton (13) has bearer layer (14), the lateral wall bonding of bearer layer (14) has polymer ventilated membrane (26).

2. The parallel high-load bundled overhead cable of claim 1, characterized in that: first recess (15) have been seted up to the lateral wall of bubble cotton (13), the inside wall laminating of first recess (15) has first arc (16), the lateral wall of bearer layer (14) is equipped with second arc (17), the outside of first arc (16) with the outside of second arc (17) is through rivet fixed connection.

3. A parallel high load bundled overhead cable as claimed in claim 2, characterized in that: the welding of the outside of second arc (17) has first plate body (18), threaded groove (19) have been seted up to one side of first plate body (18), the inside wall threaded connection of threaded groove (19) has screw rod (21), the welding of the one end of screw rod (21) has second plate body (20).

4. A parallel high load bundled overhead cable as claimed in claim 3, characterized in that: the upper surface of the second plate body (20) is provided with a through hole (23).

5. The parallel high-load bundled overhead cable of claim 4, characterized in that: a sealing gasket (22) is bonded on one side of the second plate body (20), one side of the sealing gasket (22) is bonded on one side of the first plate body (18), and an anti-corrosion layer (24) is bonded on the inner side wall of the through hole (23).

6. The parallel high-load bundled overhead cable of claim 1, characterized in that: the outer side wall of the bearing layer (14) is uniformly and fixedly connected with a bulge (25).