CN212277886U

CN212277886U - PVC-C sleeve for buried high-voltage power cable

Info

Publication number: CN212277886U
Application number: CN202021020723.5U
Authority: CN
Inventors: 李云伟; 张吉昌; 李坚
Original assignee: Kunming Deyuan Electrical Technology Co ltd
Current assignee: Kunming Deyuan Electrical Technology Co ltd
Priority date: 2020-06-06
Filing date: 2020-06-06
Publication date: 2021-01-01
Anticipated expiration: 2030-06-06

Abstract

The utility model discloses a buried PVC-C sleeve pipe for high voltage power cable, including the PVC body, the fixed anticorrosive coating that is provided with of surface laminating of PVC body, the fixed waterproof layer that is provided with of surface laminating of anticorrosive coating, the fixed back up coat that is provided with of inner wall laminating of PVC body, the fixed filling layer that is provided with of inner wall laminating of back up coat, the fixed insulating layer that is provided with of inner wall laminating of filling layer, the fixed through wires hole that forms of inner wall of insulating layer, PVC body, anticorrosive coating, waterproof layer, back up coat, filling layer and insulating layer form the sleeve pipe main part wholly. The utility model discloses in, be provided with a metal section of thick bamboo as the back up coat in PVC body inboard to increase the bearing capacity of whole body pipe, the inboard sets up the insulating layer, prevents that the body high temperature, and the outside sets up anticorrosive and waterproof layer, thereby provides the outside waterproof, the anticorrosive ability of body, is provided with butt joint structure at the both ends of sleeve pipe main part, makes sleeve pipe length change as required.

Description

PVC-C sleeve for buried high-voltage power cable

Technical Field

The utility model relates to a high voltage power cable field especially relates to a PVC-C sleeve pipe for buried high voltage power cable.

Background

The high voltage cable is a kind of power cable, which is used for transmitting power between 1kv and 1000kv, and is widely used for power transmission and distribution.

The existing pipe body structure for the high-voltage power cable is relatively fixed, when the buried high-voltage power cable sleeve is used, the corresponding waterproof, anti-corrosion and self bearing capacity needs to be considered, although the common power cable sleeve structure has partial capacity, the practical service life is relatively short, the wire is easily blocked during threading inside the sleeve, and the pipe body also needs to have a corresponding insulation effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a PVC-C sleeve for an underground high-voltage power cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a buried type PVC-C sleeve pipe for high voltage power cable, includes the PVC body, the fixed anticorrosive coating that is provided with of surface laminating of PVC body, the fixed waterproof layer that is provided with of surface laminating of anticorrosive coating, the fixed back up coat that is provided with of inner wall laminating of PVC body, the fixed filling layer that is provided with of inner wall laminating of back up coat, the fixed insulating layer that is provided with of inner wall laminating of filling layer, the fixed through wires hole that forms of inner wall of insulating layer, PVC body, anticorrosive coating, waterproof layer, back up coat, filling layer and insulating layer whole form the sleeve pipe main part.

As a further description of the above technical solution:

the reinforcing layer is arranged between the PVC pipe body and the filling layer, the reinforcing layer is fixedly arranged to be a high-strength metal cylinder, and one end of the reinforcing layer protrudes out of the surface of one end of the sleeve main body.

As a further description of the above technical solution:

the filling layer is arranged between the reinforcing layer and the insulating layer, and the heat insulation cotton is fixedly filled in the filling layer.

As a further description of the above technical solution:

the insulating layer is made of ceramic.

As a further description of the above technical solution:

the one end fixedly connected with sleeve of sleeve pipe main part, telescopic inner wall is fixed to be the PVC body, the length setting of PVC body at the sleeve inner wall is the same with the protrusion length of back up coat.

As a further description of the above technical solution:

the material of the filling layer can be replaced into a metal mesh cylinder structure according to the actual burial depth.

The utility model discloses following beneficial effect has:

1. the utility model discloses among the buried high voltage power cable PVC-C sleeve pipe structure, be provided with a metal section of thick bamboo as the back up coat in PVC body inboard to increase the bearing capacity of whole body pipe, the inboard sets up the insulating layer, prevents that the body high temperature, and the outside sets up anticorrosive and waterproof layer, thereby provides the outside waterproof, the anticorrosive ability of body.

2. The utility model discloses among the buried high voltage power cable PVC-C bushing structure, set up to ceramic structure at the inside threading hole inner wall of sleeve pipe main part, increased the insulating ability of body self on the one hand, on the other hand reduces the line body and the inside wall friction of pipe for the threading is simple and easy.

3. The utility model discloses among the buried high voltage power cable PVC-C sleeve pipe structure, be provided with butt joint structure at the both ends of sleeve pipe main part, except can butt joint general body, realize many sheathed tubes butt joint operations through the butt joint of back up coat and PVC body for sleeve pipe length can change as required.

Drawings

FIG. 1 is a front sectional view of a PVC-C bushing for a buried high voltage power cable;

FIG. 2 is a side semi-sectional view of a PVC-C sleeve for a buried high voltage power cable;

fig. 3 is a side view of a PVC-C sleeve for an underground high voltage power cable.

Illustration of the drawings:

1. a PVC pipe body; 2. an anticorrosive layer; 3. a waterproof layer; 4. a reinforcement layer; 5. a filling layer; 6. heat insulation cotton; 7. an insulating layer; 8. threading holes; 9. a cannula body; 10. a sleeve.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a buried type PVC-C sleeve pipe for high voltage power cable, including PVC body 1, the fixed anticorrosive coating 2 that is provided with of surface laminating of PVC body 1, outer anticorrosive operation is provided, the fixed waterproof layer 3 that is provided with of surface laminating of anticorrosive coating 2, realize body outside waterproof operation, the fixed back up coat 4 that is provided with of inner wall laminating of PVC body 1, increase body intensity, the fixed filling layer 5 that is provided with of inner wall laminating of back up coat 4, heat-resisting filling position is provided, the fixed insulating layer 7 that is provided with of inner wall laminating of filling layer 5, realize internal insulation, the fixed through wires hole 8 that forms of inner wall of insulating layer 7, threading position is provided, PVC body 1, anticorrosive coating 2, waterproof layer 3, back up coat 4, filling layer 5 and insulating layer 7 wholly form sleeve pipe main part 9.

Strengthening layer 4 sets up between PVC body 1 and filling layer 5, strengthening layer 4 is fixed to be the metal cylinder that excels in, guarantee holistic compressive capacity, the one end surface of the one end protrusion sleeve main part 9 of strengthening layer 4, for the butt joint provides the prerequisite, filling layer 5 sets up between strengthening layer 4 and insulating layer 7, the inside fixed packing of filling layer 5 has thermal-insulated cotton 6, realize thermal-insulated operation, the fixed setting of material of insulating layer 7 is ceramic, increase inner wall smoothness, provide insulating operation, the one end fixedly connected with sleeve 10 of sleeve main part 9, the supply cup joints, the fixed setting of inner wall of sleeve 10 is PVC body 1, PVC body 1 is the same with strengthening layer 4's protrusion length in the length setting of sleeve 10 inner wall, realize accurate butt joint, the material of filling layer 5 can be according to the actual buried depth replacement for metal mesh tube structure, thereby realize that the body can buckle, do not influence the strengthening capacity again.

The working principle is as follows: when bushing structure constitutes, be provided with a metal section of thick bamboo as back up coat 4 in PVC body 1 inboard, thereby increase the bearing capacity of whole body pipe, the inboard thermal-insulated filling layer 5 that sets up, prevent that the body high temperature, the outside sets up anticorrosive and waterproof layer 3, thereby provide the outside waterproof of body, anticorrosive ability, set up to ceramic structure insulating layer 7 at 9 inside through wires hole 8 inner walls of sleeve pipe main part, the insulating ability of body self has been increased on the one hand, on the other hand reduces the line body and the inside pipe wall friction, make the threading simple and easy, be provided with butt joint structure at the both ends of sleeve pipe main part 9, except can butt joint general body, realize many sheathed tube butt joint operations through the butt joint of back up coat 4 and PVC body 1, make sleeve pipe length can change as required.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a buried type PVC-C sleeve pipe for high voltage power cable, includes PVC body (1), its characterized in that: the fixed anticorrosive coating (2) that is provided with of surface laminating of PVC body (1), the fixed waterproof layer (3) that is provided with of surface laminating of anticorrosive coating (2), the fixed back up coat (4) that is provided with of inner wall laminating of PVC body (1), the fixed filling layer (5) that is provided with of inner wall laminating of back up coat (4), the fixed insulating layer (7) that is provided with of inner wall laminating of filling layer (5), the fixed through wires hole (8) that forms of inner wall of insulating layer (7), PVC body (1), anticorrosive coating (2), waterproof layer (3), back up coat (4), filling layer (5) and insulating layer (7) wholly form sleeve pipe main part (9).

2. The PVC-C bushing for buried high-voltage power cables according to claim 1, characterized in that: the PVC pipe is characterized in that the reinforcing layer (4) is arranged between the PVC pipe body (1) and the filling layer (5), the reinforcing layer (4) is fixedly arranged to be a high-strength metal cylinder, and one end of the reinforcing layer (4) protrudes out of one end surface of the sleeve main body (9).

3. The PVC-C bushing for buried high-voltage power cables according to claim 1, characterized in that: the filling layer (5) is arranged between the reinforcing layer (4) and the insulating layer (7), and the heat insulation cotton (6) is fixedly filled in the filling layer (5).

4. The PVC-C bushing for buried high-voltage power cables according to claim 1, characterized in that: the insulating layer (7) is made of ceramic.

5. The PVC-C bushing for buried high-voltage power cables according to claim 1, characterized in that: the one end fixedly connected with sleeve (10) of sleeve pipe main part (9), the inner wall of sleeve (10) is fixed to be set up to PVC body (1), PVC body (1) is the same with the protrusion length of back up coat (4) in the length setting of sleeve (10) inner wall.

6. The PVC-C bushing for buried high-voltage power cables according to claim 1, characterized in that: the material of the filling layer (5) can be replaced into a metal mesh cylinder structure according to the actual burial depth.