CN212411638U

CN212411638U - Cable protection device suitable for underground just has dampproofing anticorrosion function

Info

Publication number: CN212411638U
Application number: CN202021212892.9U
Authority: CN
Inventors: 孙筠
Original assignee: Shanghai Xiantong Power Equipment Engineering Co ltd
Current assignee: Shanghai Xiantong Power Equipment Engineering Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-01-26
Anticipated expiration: 2030-06-28

Abstract

The utility model belongs to the technical field of the cable, specifically disclose a cable protection device suitable for underground just has dampproofing anticorrosion function, including conductor and internal shield layer, the outside laminating of conductor has the first insulation layer, and the external fixation on first insulation layer has first packing, the outside laminating on internal shield layer has the second insulating layer, and the internal shield layer is located the outside of first packing, the outside laminating of second insulating layer has the external shield layer, and the outside laminating of external shield layer has the metallic shield layer, the external fixation of metallic shield layer has the second to fill, and the inside that the second was filled is provided with shielding layer. This cable protection device suitable for underground just has dampproofing anticorrosion function is provided with the dampproof course, because the cable uses in the underground, and underground moisture is many, and damp is big, if the cable is long-time in underground work, probably leads to not wet, and image circuit's transmission can lead to the electric leakage when serious, so set up the dampproof course in the outside of cable, the effectual contact that has blocked water and cable.

Description

Cable protection device suitable for underground just has dampproofing anticorrosion function

Technical Field

The utility model relates to the technical field of cables, specifically be a cable protection device who is applicable to the underground and has dampproofing anticorrosion function.

Background

The cable includes power cable, control cable, compensation cable, shielding cable, high temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable, etc. and is composed of single-strand or multi-strand conductor and insulating layer for connecting circuit, electric appliance, etc.

The existing cables on the market are not suitable for underground, have high underground moisture, do not have a moisture-proof function, and also have an anti-corrosion function, and the cable works underground for a long time, so that the outer skin on the surface of the cable is corroded and broken quickly, electric leakage is easy to cause, and the use requirements of people cannot be well met.

In order to solve the problems, innovative design is urgently needed on the basis of the original cable, and therefore a cable protection device which is suitable for the underground and has the moisture-proof and corrosion-proof functions is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable protection device suitable for underground and have dampproofing anticorrosion function to what provide in solving above-mentioned background art is not suitable for the underground, and underground moisture is high, does not have dampproofing function, does not possess anticorrosion function yet, works for a long time in the underground, and very fast cable surface crust has just been corroded brokenly, leads to the problem of electric leakage easily.

In order to achieve the above object, the utility model provides a following technical scheme: a cable protection device which is suitable for underground and has the functions of moisture protection and corrosion prevention comprises a conductor and an inner shielding layer, wherein a first insulating layer is attached to the outer part of the conductor, the first filling is fixed outside the first insulating layer, the second insulating layer is attached outside the inner shielding layer, the inner shielding layer is positioned outside the first filling, the outer shielding layer is attached to the outside of the second insulating layer, and the outer part of the outer shielding layer is adhered with a metal shielding layer, the outer part of the metal shielding layer is fixed with a second filling, and the inside of the second filling is provided with a shielding layer, the outside of the second filling is attached with a belting layer, and the outside laminating of band layer has the isolation sleeve, the outside laminating of isolation sleeve has the steel band armor, and the outside laminating of steel band armor has the dampproof course, the outside laminating of dampproof course has the anticorrosive coating, and the outside laminating of anticorrosive coating has the antifreezing coating.

Preferably, the outer part of the conductor is tightly attached to the inner part of the first insulating layer, and the conductor is uniformly distributed in the inner part of the first insulating layer.

Preferably, the inner shield layer forms a solid structure through the space between the conductor and the first filler, and a center line of the conductor and a center line of the first insulating layer coincide with each other.

Preferably, the central line of the inner shielding layer and the central line of the second insulating layer are overlapped, and the outer part of the inner shielding layer is tightly attached to the inner part of the second insulating layer.

Preferably, the metal shielding layer and the conductor are parallel to each other, and the metal shielding layer is uniformly distributed in the belting layer.

Preferably, the metal shielding layer and the belting layer are parallel to each other, and the belting layer forms a solid structure through the metal shielding layer and the second filler.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this cable protection device suitable for underground just has dampproofing anticorrosion function is provided with the dampproof course, because the cable uses in the underground, and underground moisture is many, and damp is big, if the cable is worked in the underground for a long time, probably leads to it to wet, influences the transmission of circuit, probably leads to the electric leakage when serious, so set up the dampproof course in the outside of cable, the effectual contact of stopping water and cable.

2. This cable protection device suitable for underground just has dampproofing anticorrosion function is provided with the anticorrosive coating, because the cable is used in the underground, moisture is many and have a lot of microorganisms, long-time work in the underground, make the sheath corroded easily, expose the inner conductor, danger very, so the outside at the cable has set up the one deck anticorrosive coating, make the cable can not corroded, the anticorrosive coating outside still has the one deck freeze-proof coating, north or plateau area perennial snow, underground very cold, need freeze-proof coating protection, make its use that can the longer time.

3. The cable protection device suitable for underground and having the moisture-proof and corrosion-proof functions is provided with the inner shielding layer, in order to enable the second insulating layer to be in good contact with the cable conductor and eliminate an increase source of the electric field intensity on the surface of the conductor caused by non-smoothness on the surface of the conductor, the inner shielding layer of metalized paper or semiconductor paper tape is generally wrapped on the surface of the conductor, and the protective layer has the characteristics of good corrosion resistance, strong toughness and the like and has a good protection function.

Drawings

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

fig. 2 is a schematic view of the vertical structure of the present invention;

fig. 3 is a schematic structural diagram of a portion a in fig. 1 according to the present invention.

In the figure: 1. a conductor; 2. a first insulating layer; 3. first filling; 4. an inner shield layer; 5. a second insulating layer; 6. an outer shield layer; 7. a metal shielding layer; 8. second filling; 9. a shielding layer; 10. a belting layer; 11. an isolation sleeve; 12. steel tape armoring; 13. a moisture barrier; 14. an anticorrosive layer; 15. and (4) an anti-freezing layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a cable protection device suitable for underground and having moisture-proof and corrosion-proof functions comprises a conductor 1 and an inner shielding layer 4, wherein a first insulating layer 2 is attached to the outer portion of the conductor 1, a first filling 3 is fixed to the outer portion of the first insulating layer 2, the outer portion of the conductor 1 is tightly attached to the inner portion of the first insulating layer 2, the conductor 1 is uniformly distributed in the first insulating layer 2, the first layer is insulated and protected, the electric leakage risk of a cable is reduced, and the cable is safer, a second insulating layer 5 is attached to the outer portion of the inner shielding layer 4, the inner shielding layer 4 is located on the outer portion of the first filling 3, the inner shielding layer 4 forms a solid structure through the conductor 1 and the first filling 3, the center line of the conductor 1 is overlapped with the center line of the first insulating layer 2, the center line of the inner shielding layer 4 is overlapped with the center line of the second insulating layer 5, and the outer portion of the inner shielding layer 4 is tightly attached to the inner portion of the second, in order to make the second insulating layer 5 and the cable conductor 1 have better contact and eliminate the increase source of the electric field intensity on the surface of the incoming conductor 1 caused by the non-smoothness on the surface of the conductor 1, the surface of the conductor 1 is generally coated with an inner shielding layer 4 of metallized paper or semiconductor paper tape, a protective layer has the characteristics of good corrosion resistance, strong toughness and the like, and has good protection function, an outer shielding layer 6 is attached to the outside of the second insulating layer 5, a metal shielding layer 7 is attached to the outside of the outer shielding layer 6, a second filling 8 is fixed to the outside of the metal shielding layer 7, a shielding layer 9 is arranged inside the second filling 8, a belting layer 10 is attached to the outside of the second filling 8, an isolating sleeve 11 is attached to the outside of the belting layer 10, the metal shielding layer 7 and the conductor 1 are parallel to each other, the metal shielding layer 7 is uniformly distributed inside the belting layer 10, and the metal shielding layer 7 and the belting layer 10 are parallel to, and the band layer 10 forms solid construction through between metal shielding layer 7 and the second packing 8, the band layer 10 is a wire with metal braid shell that is adopted specially for reducing the influence of external electromagnetic field to power or communication line, this kind of shielded wire also has the effect of preventing the outside radiation electromagnetic energy of circuit, the laminating of the outside of separation sleeve 11 has steel tape armor 12, and the laminating of the outside of steel tape armor 12 has dampproof course 13, the laminating of the outside of dampproof course 13 has anticorrosive coating 14, and the laminating of the outside of anticorrosive coating 14 has anti-freeze coating 15.

The working principle is as follows: the cable protection device suitable for underground and having the moisture-proof and corrosion-proof functions comprises the steps of laying a cable underground, enabling the cable to normally work by connecting two ends, arranging a moisture-proof layer 13 on the cable, effectively preventing water from contacting the cable due to the fact that the cable is used underground, the underground moisture is high, the moisture is large, if the cable works underground for a long time, the cable is likely to be affected by moisture, transmission of a circuit is affected, and electric leakage is likely to occur in serious cases, arranging the moisture-proof layer 13 on the outer side of the cable, effectively preventing the water from contacting the cable, having the corrosion-proof and freeze-proof functions, arranging an anticorrosive layer 14 on the outer side of the cable due to the fact that the cable is used underground, the moisture is high, and the cable is likely to be corroded due to long-time underground work, exposing an inner conductor 1, and being very dangerous, arranging the anticorrosive layer 14 on the outer side of the cable, the northern or plateau area is always snow-covered, the underground is very cold, and the anti-freezing layer 15 is required to protect the snow-covered area, so that the snow-covered area can be used for a longer time, and the working principle of the cable protection device which is suitable for the underground and has the moisture-proof and corrosion-proof functions is the working principle.

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. A cable protection device suitable for underground and having dampproofing anticorrosion function, includes conductor (1) and internal shield layer (4), its characterized in that: the outer part of the conductor (1) is attached with a first insulating layer (2), a first filling (3) is fixed on the outer part of the first insulating layer (2), a second insulating layer (5) is attached on the outer part of an inner shielding layer (4), the inner shielding layer (4) is positioned on the outer part of the first filling (3), an outer shielding layer (6) is attached on the outer part of the second insulating layer (5), a metal shielding layer (7) is attached on the outer part of the outer shielding layer (6), a second filling (8) is fixed on the outer part of the metal shielding layer (7), a shielding layer (9) is arranged inside the second filling (8), a wrapping tape layer (10) is attached on the outer part of the second filling (8), an isolating sleeve (11) is attached on the outer part of the isolating sleeve (11), a steel armor tape (12) is attached on the outer part of the steel tape armor (12), and a damp-proof layer (13) is attached on the outer part of the steel tape armor (12), the outside laminating of dampproof course (13) has anticorrosive coating (14), and the outside laminating of anticorrosive coating (14) has freeze-proof coating (15).

2. The cable protection device with moisture and corrosion protection functions for underground use according to claim 1, wherein: the outer part of the conductor (1) is tightly attached to the inner part of the first insulating layer (2), and the conductor (1) is uniformly distributed in the first insulating layer (2).

3. The cable protection device with moisture and corrosion protection functions for underground use according to claim 1, wherein: the inner shielding layer (4) forms a solid structure through the conductor (1) and the first filler (3), and the center line of the conductor (1) and the center line of the first insulating layer (2) are overlapped.

4. The cable protection device with moisture and corrosion protection functions for underground use according to claim 1, wherein: the central line of the inner shielding layer (4) and the central line of the second insulating layer (5) are overlapped, and the outer portion of the inner shielding layer (4) is tightly attached to the inner portion of the second insulating layer (5).

5. The cable protection device with moisture and corrosion protection functions for underground use according to claim 1, wherein: the metal shielding layer (7) and the conductor (1) are parallel to each other, and the metal shielding layer (7) is uniformly distributed in the belting layer (10).

6. The cable protection device with moisture and corrosion protection functions for underground use according to claim 1, wherein: the metal shielding layer (7) and the belting layer (10) are parallel to each other, and the belting layer (10) forms a solid structure through the metal shielding layer (7) and the second filler (8).