CN209929933U

CN209929933U - NPP cable protection pipe

Info

Publication number: CN209929933U
Application number: CN201921053855.5U
Authority: CN
Inventors: 陈兵; 张建; 王复俊; 邹禹
Original assignee: Jiangsu Tianyou Electric Technology Co Ltd; State Grid Jiangsu Electric Power Co Ltd Jinhu County Power Supply Branch
Current assignee: Jiangsu Tianyou Electric Technology Co Ltd; State Grid Jiangsu Electric Power Co Ltd Jinhu County Power Supply Branch
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-01-10
Anticipated expiration: 2029-07-08

Abstract

The utility model relates to the technical field of pipeline, and a NPP cable protection pipe is disclosed, including the pipe shaft, the pipe shaft is cylindrical setting, the main material of pipe shaft is the NPP board, the outer wall of pipe shaft is smooth setting, the inside of pipe shaft is equipped with the insulating layer, the spraying has protective coating on the inner wall of insulating layer, protective coating's material is nickel-chromium alloy, be equipped with the rubber bump on the inner wall of pipe shaft, the two cross-sections of pipe shaft all are provided with the hot melt butt joint layer. This NPP cable protection pipe, through the rubber bump on the pipe shaft inner wall, the outer wall sets up smoothly, it is the point contact with the pipe wall during the cable poling, consequently can reduce the friction area between cable and the tubular product greatly, make the drag force diminish, thereby reduced the construction degree of difficulty, the inside tiny foreign matter that can make earth stone etc. of pipe shaft is present among the tubular product, consequently the rubber bump can avoid foreign matter fish tail cable oversheath, simultaneously, the adnexed grains of sand of cable epidermis when can also scraping cable laying.

Description

NPP cable protection pipe

Technical Field

The utility model relates to the technical field of pipelines, specifically be a NPP cable protection pipe.

Background

With the acceleration of the urbanization process, in urban construction and transformation planning, overground pipelines are often required to enter the ground to keep the urban appearance attractive, and with the increasing popularization of high-voltage cable line construction, the laying of power calandria becomes one of the important forms of high-voltage cable line construction, and especially for cable lines passing through major traffic lanes such as highways, railways and the like, the embedded power calandria can not only avoid repeatedly excavating the road surface, damage the road structure and reduce the influence on road surface traffic, but also can reduce the construction compensation cost, shorten the construction time and reduce the engineering cost.

In the actual construction and use process, the traditional protective casing, such as an underground power casing or a communication casing, generally needs to be subjected to massive mud digging, soil digging and pavement damage during pipeline laying, so that the assembly time is prolonged, the construction efficiency is reduced, and meanwhile, the traditional protective casing has poor pressure resistance and is easy to break, so that a pipe network laid in the protective casing is influenced, and irreparable loss is directly caused under severe conditions.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a NPP cable protection pipe possesses good electrical insulation, improves advantages such as life of pipeline, has solved and has need a large amount of mud dredging, the problem on the earth and destruction road surface.

(II) technical scheme

For realizing above-mentioned good electrical insulation, improve the purpose of the life of pipeline, the utility model provides a following technical scheme: the utility model provides a NPP cable protection pipe, includes the pipe shaft, the pipe shaft is cylindrical setting, the outer wall of pipe shaft is smooth setting, the inside of pipe shaft is equipped with the insulating layer, the spraying has protective coating on the inner wall of insulating layer, be equipped with the rubber bump on the inner wall of pipe shaft.

Preferably, the main material of pipe shaft is NPP board.

Preferably, the cross sections of the two ends of the pipe body are provided with hot-melt butt-joint layers.

Preferably, the rubber bumps are fixedly arranged on the inner wall of the tube body.

Preferably, the material of the protective coating is nickel-chromium alloy.

(III) advantageous effects

Compared with the prior art, the utility model provides a NPP cable protection pipe possesses following beneficial effect:

1. this NPP cable protection pipe, through adopting NPP to be main material, again because of adding the insulating layer, protective coating, make and have good electrical insulation, fashioned pipeline tensile, compressive property is high, matter is light, it is smooth, can the hot melt butt joint when taking over, accomplish several seconds, safety and reliability, can adapt to most environment, during the pipe laying, need not a large amount of diggings, dig and destroy the road surface, can not cause the condition such as job site dust to fly upward, traffic jam, the current-carrying capacity of cable when having improved cable insulation performance and having moved, therefore long service life.

2. This NPP cable protection pipe, through the rubber bump on the pipe shaft inner wall, the outer wall sets up smoothly, it is the point contact with the pipe wall during the cable poling, consequently can reduce the friction area between cable and the tubular product greatly, make the drag force diminish, thereby reduced the construction degree of difficulty, the inside tiny foreign matter that can make earth stone etc. of pipe shaft is present among the tubular product, consequently the rubber bump can avoid foreign matter fish tail cable oversheath, simultaneously, the adnexed grains of sand of cable epidermis when can also scraping cable laying.

Drawings

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

fig. 2 is a front view structural section view of the present invention.

In the figure: 1 pipe body, 2 insulating layers, 3 protective coatings, 4 rubber bumps and 5 hot-melt butt-joint layers.

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. 1-2, an NPP cable protection tube includes a tube body 1, the tube body 1 is in a cylindrical shape, the main material of the tube body 1 is an NPP plate, the outer wall of the tube body 1 is in a smooth shape, an insulating layer 2 is arranged inside the tube body 1, a protective coating 3 is sprayed on the inner wall of the insulating layer 2, the protective coating 3 is made of nichrome, rubber bumps 4 are arranged on the inner wall of the tube body 1, the rubber bumps 4 are fixedly mounted on the inner wall of the tube body 1, and hot-melt butt-joint layers 5 are arranged on the cross sections of the two ends of the tube body 1.

In conclusion, this NPP cable protection pipe, through rubber bump 4 on the pipe shaft 1 inner wall, the outer wall sets up smoothly, it is the point contact with the pipe wall during the cable poling, consequently can reduce the friction area between cable and the tubular product greatly, make the drag reduce, thereby reduced the construction degree of difficulty, 1 inside tiny foreign matters such as stone can make of pipe shaft exist among the tubular product, consequently rubber bump 4 can avoid the foreign matter fish tail cable oversheath, simultaneously, can also scrape the adnexed sand grain of cable epidermis when laying.

And, through adopting NPP as main material, again because of adding insulating layer 2, protective coating 3 for have good electrical insulation, fashioned pipeline tensile, compressive property is high, matter is light, and is smooth, can the hot melt butt joint when taking over, accomplishes several seconds, and safe and reliable can adapt to most environment, and during the pipe laying, need not a large amount of mud digs, digs and destroys the road surface, can not cause the circumstances such as job site dust flying upward, traffic jam, has improved cable insulation performance and the current-carrying capacity of cable when moving, therefore long service life.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. An NPP cable protection tube, comprising a tube body (1), characterized in that: the pipe shaft (1) is cylindrical, the outer wall of pipe shaft (1) is smooth setting, the inside of pipe shaft (1) is equipped with insulating layer (2), the spraying has protective coating (3) on the inner wall of insulating layer (2), be equipped with rubber bump (4) on the inner wall of pipe shaft (1).

2. The NPP cable protection tube according to claim 1, wherein: the main material of pipe shaft (1) is NPP board.

3. The NPP cable protection tube according to claim 1, wherein: the cross sections of the two ends of the pipe body (1) are provided with hot-melt butt joint layers (5).

4. The NPP cable protection tube according to claim 1, wherein: the rubber bumps (4) are fixedly arranged on the inner wall of the tube body (1).

5. The NPP cable protection tube according to claim 1, wherein: the material of the protective coating (3) is nickel-chromium alloy.