CN211376266U

CN211376266U - Power cable with waterproof and moistureproof functions

Info

Publication number: CN211376266U
Application number: CN202020441075.4U
Authority: CN
Inventors: 谢蒙钦; 黄良斌; 戴兴凯
Original assignee: Jiangxi Lianchuang Cable Co ltd
Current assignee: Jiangxi Lianchuang Cable Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-08-28
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a power cable with dampproofing and waterproofing function, including polyethylene overcoat and enhancement fastening area, be provided with the oil-plated film on the polyethylene overcoat lateral wall, be provided with galvanized steel strip armor in the polyethylene overcoat inner wall, the inside inner sheath that is provided with of galvanized steel strip armor, be provided with glass silk band on the inner sheath inside wall, be provided with the liner on the inside wall in glass silk band, be provided with the insulator in the liner, be provided with metallic shield on the outside wall of insulator, the inside conductor inner core that is provided with of insulator, the metallic shield periphery is provided with dampproofing filler. Has the advantages that: the utility model discloses a set up the oil-plating film, strengthen fastening area, inner sheath extension post and slot, not only can guarantee the dampproofing and waterproofing of cable under the normal conditions, can reduce the cable line body oxidation degree of splitting moreover, further avoid the inside emergence of weing.

Description

Power cable with waterproof and moistureproof functions

Technical Field

The utility model relates to a power cable technical field, concretely relates to power cable with dampproofing and waterproofing function.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. In the power lines, the cable is increasing in specific gravity. Power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables.

Most of the existing moistureproof and waterproof designs of the power cables are protected at the end of the cable, and the cable body of the cable is rarely provided with the moistureproof and waterproof designs, so that the use of the cable is not facilitated.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome prior art not enough, provide a power cable with dampproofing and waterproofing function now, solve current power cable's dampproofing and waterproofing design and mostly all protect in the end department of cable, have dampproofing and waterproofing's design on the line body of cable seldom, be unfavorable for the problem of the use of cable.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a power cable with waterproof and moistureproof functions, which comprises a polyethylene outer sleeve and a reinforcing fastening belt, a galvanized oil film is arranged on one side wall of the polyethylene jacket, a galvanized steel strip armor is arranged in the inner wall of the polyethylene jacket, an inner sheath is arranged inside the galvanized steel strip armor, a glass fiber wrapping tape is arranged on the inner wall of the inner sheath, the inner wall of the glass fiber wrapping tape is provided with a liner, an insulator is arranged in the liner, the outer wall of the insulator is provided with a metal shielding layer, a conductor inner core is arranged in the insulator, a moisture-proof filling agent is arranged at the periphery of the metal shielding layer, the reinforced fastening belt is arranged in the inner wall of the polyethylene outer sleeve, the galvanized steel armor is provided with a slot, an inner sheath extension column is arranged on one side, close to the galvanized steel strip armor, of the inner sheath, and an inner shielding layer is clamped and pressed between the conductor inner core and the insulator.

Further, the galvanized oil film is glued with the polyethylene outer sleeve, and the galvanized steel strip is clamped in the polyethylene outer sleeve in an armored manner.

Furthermore, the inner sheath is fixedly connected with the galvanized steel strip armor in a clamping and pressing mode, and the glass fiber wrapping tape is glued with the inner sheath.

Further, the liner is embedded in the glass fiber wrapping tape, the moisture-proof filler is filled in the glass fiber wrapping tape, and the insulator is embedded in the moisture-proof filler.

Further, the metal shielding layer is nested on the insulator, and the conductor inner core is fixedly connected with the insulator in a clamping and pressing mode.

Furthermore, the reinforcing fastening belt is embedded in the polyethylene outer sleeve, the inner sheath extension column is formed on the inner sheath, the slot is formed on the galvanized steel strip armor, and the inner sheath extension column is connected with the slot in an inserting mode.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

the moisture-proof and waterproof design for solving the existing power cable is mostly to protect the end of the cable, and the cable body of the cable is rarely provided with the moisture-proof and waterproof design and is not beneficial to the use of the cable. The utility model discloses a set up the oil-plating film, strengthen fastening area, inner sheath extension post and slot, not only can guarantee the dampproofing and waterproofing of cable under the normal conditions, can reduce the cable line body oxidation degree of splitting moreover, further avoid the inside emergence of weing.

Drawings

Fig. 1 is a schematic structural diagram of a power cable with waterproof and moistureproof functions according to the present invention;

fig. 2 is a front sectional view of a power cable with waterproof and moistureproof functions according to the present invention;

FIG. 3 is a schematic view showing the connection relationship between the inner sheath and the galvanized steel armor tape of the power cable with waterproof and moistureproof functions according to the present invention;

fig. 4 is a schematic diagram of the position relationship between the polyethylene sheath and the reinforced fastening belt in the power cable with waterproof and moistureproof functions of the present invention.

The reference numerals are explained below:

1. a polyethylene jacket; 2. galvanizing steel tape armoring; 3. an inner sheath; 4. an insulator; 5. an inner shield layer; 6. a conductor inner core; 7. a liner; 8. a metal shielding layer; 9. a glass fiber wrapping tape; 10. plating an oil film; 11. reinforcing the fastening tape; 12. an inner sheath extension post; 13. a slot; 14. a moisture-proof filler.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-4, the power cable with waterproof and moistureproof functions in this embodiment includes a polyethylene sheath 1 and a reinforcing fastening tape 11, a side wall of the polyethylene sheath 1 is provided with a galvanized oil film 10, an inner wall of the polyethylene sheath 1 is provided with a galvanized steel tape sheath 2, an inner sheath 3 is arranged inside the galvanized steel tape sheath 2, an inner wall of the inner sheath 3 is provided with a glass fiber tape 9, an inner wall of the glass fiber tape 9 is provided with a liner 7, an insulator 4 is arranged inside the liner 7, an outer wall of the insulator 4 is provided with a metal shielding layer 8, an inner conductor core 6 is arranged inside the insulator 4, a periphery of the metal shielding layer 8 is provided with a moistureproof filler 14, an inner wall of the polyethylene sheath 1 is provided with the reinforcing fastening tape 11, an insertion slot 13 is arranged on the galvanized steel tape sheath 2, an inner sheath extension column 12 is arranged on a side of the, an inner shielding layer 5 is clamped and pressed between the conductor inner core 6 and the insulator 4.

The galvanized oil film 10 is glued with the polyethylene outer sleeve 1, and the galvanized steel tape armor 2 is clamped and pressed in the polyethylene outer sleeve 1.

The inner sheath 3 and the galvanized steel strip armor 2 are fixedly connected in a clamping and pressing mode, and the glass fiber wrapping tape 9 is glued with the inner sheath 3.

The packing 7 is embedded in the glass fiber tape 9, the moisture-proof filler 14 is filled in the glass fiber tape 9, and the insulator 4 is embedded in the moisture-proof filler 14.

The metal shielding layer 8 is nested on the insulator 4, and the conductor inner core 6 is fixedly connected with the insulator 4 in a clamping and pressing mode.

The reinforced fastening belt 11 is embedded in the polyethylene outer sleeve 1, the inner sheath extension column 12 is formed on the inner sheath 3, the slot 13 is formed on the galvanized steel strip armor 2, and the inner sheath extension column 12 is connected with the slot 13 in an inserting mode.

The specific implementation process of this embodiment is as follows: when processing power cable, when galvanized steel strip armor 2 docks with inner sheath 3, leave the hole site in advance on the galvanized steel strip armor 2, inner sheath extension post 12 has also been designed on 3 lateral walls of inner sheath simultaneously, during slot 13 was inserted to melting inner sheath extension post 12, fix inner sheath 3 and galvanized steel strip armor 2 with this mode, this design can be when the cable temperature is higher, inner sheath 3 takes place thermal deformation, extrude from galvanized steel strip armor 2, avoid great to the pressure that the inside caused. And then after the final packaging is finished, an oil film 10 is plated on one side of the polyethylene outer sleeve 1, and the polyethylene outer sleeve can be matched with the glass fiber wrapping tape 9 and the moisture-proof filling agent 14 inside to jointly play a role in water and moisture prevention, so that an effective protection effect is achieved on the cable body of the cable. In addition, the polyethylene outer sleeve 1 can generate cracks when being oxidized, so that the internal structure is exposed, and the reinforced fastening belt 11 in the device can reduce or avoid the cracks on the polyethylene outer sleeve 1, thereby further enhancing the waterproof and moistureproof effects.

The above examples are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides a power cable with dampproofing and waterproofing function which characterized in that: comprises a polyethylene outer sleeve (1) and a reinforcing fastening belt (11), wherein a side wall of the polyethylene outer sleeve (1) is provided with a galvanized oil film (10), the inner wall of the polyethylene outer sleeve (1) is provided with a galvanized steel strip armor (2), the inner part of the galvanized steel strip armor (2) is provided with an inner sheath (3), the inner wall of the inner sheath (3) is provided with a glass fiber wrapping tape (9), the inner wall of the glass fiber wrapping tape (9) is provided with a liner (7), an insulator (4) is arranged in the liner (7), the outer wall of the insulator (4) is provided with a metal shielding layer (8), the inner part of the insulator (4) is provided with a conductor inner core (6), the periphery of the metal shielding layer (8) is provided with a moisture-proof filler (14), the inner wall of the polyethylene outer sleeve (1) is provided with the reinforcing fastening belt (11), the galvanized steel strip armor (2) is provided with, an inner sheath extension column (12) is arranged on one side, close to the galvanized steel strip armor (2), of the inner sheath (3), and an inner shielding layer (5) is clamped and pressed between the conductor inner core (6) and the insulator (4).

2. A waterproof and moisture-proof electric power cable as claimed in claim 1, wherein: the galvanized oil film (10) is glued with the polyethylene outer sleeve (1), and the galvanized steel strip armor (2) is clamped and pressed in the polyethylene outer sleeve (1).

3. A waterproof and moisture-proof electric power cable as claimed in claim 1, wherein: the inner sheath (3) is fixedly connected with the galvanized steel strip armor (2) in a clamping and pressing mode, and the glass fiber wrapping tape (9) is glued with the inner sheath (3).

4. A waterproof and moisture-proof electric power cable as claimed in claim 1, wherein: the pad (7) is embedded in the glass fiber tape (9), the moisture-proof filler (14) is filled in the glass fiber tape (9), and the insulator (4) is embedded in the moisture-proof filler (14).

5. A waterproof and moisture-proof electric power cable as claimed in claim 1, wherein: the metal shielding layer (8) is nested on the insulator (4), and the conductor inner core (6) is fixedly connected with the insulator (4) in a clamping and pressing mode.

6. A waterproof and moisture-proof electric power cable as claimed in claim 1, wherein: the reinforced fastening belt (11) is embedded in the polyethylene outer sleeve (1), the inner sheath extension column (12) is formed on the inner sheath (3), the slot (13) is formed on the galvanized steel strip armor (2), and the inner sheath extension column (12) is spliced with the slot (13).