CN217280161U

CN217280161U - Safe high-voltage crosslinked polyethylene insulated power cable

Info

Publication number: CN217280161U
Application number: CN202220886377.1U
Authority: CN
Inventors: 冯彦辉; 李焕龙; 毕玲玲
Original assignee: Shijiazhuang Fengyan Cable Co ltd
Current assignee: Shijiazhuang Fengyan Cable Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-23
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a safe high pressure crosslinked polyethylene insulated power cable, including the outer protective layer, outer protective layer in-connection is provided with the insulating layer, the fixed linking angle tooth that is provided with in outer protective layer inner wall both sides, linking angle tooth and insulating layer meshing, it is provided with the inner protective layer to connect in the insulating layer, it is provided with insulating water barrier to fill between insulating layer and the inner protective layer, inner protective layer in-connection is provided with the cable core, cable core surface connection is provided with the heat protection fixed bed, the intussuseption of inner protective layer is filled with heat conduction insulating layer, outer protective layer one side slides and is provided with the spacer ring, a plurality of radiating grooves have been seted up to the outer protective layer both sides. The utility model discloses the structural stability of effectual promotion cable conductor itself of utensil guarantees simultaneously can not cause the phenomenon that breaks away from when the installation is dragged to the holistic high temperature resistance of effectual promotion further satisfies the user demand.

Description

Safe high-voltage crosslinked polyethylene insulated power cable

Technical Field

The utility model relates to a power cable technical field specifically is safe high pressure crosslinked polyethylene insulation power cable.

Background

The present cable industry mainly uses two types of crosslinked polyethylene, one is silane crosslinking material which is mainly applied to the insulating layer of low-voltage electric wires and cables, the other is crosslinked polyethylene material which is formed by polyethylene, crosslinking agent and antioxidant which is mainly applied to the insulating layer of medium-voltage and high-voltage cables, the higher the insulation voltage-resistant grade is, the higher the purity is required, and the crosslinked polyethylene insulated power cables have the advantages of simple production process, light structure, large transmission capacity, convenient installation, laying, maintenance and maintenance, no drop limitation, etc., and are widely popular by users.

However, the existing common cable has poor structural stability, the cable surface and the inner filling layer are separated and separated during installation and traction, the use efficiency is influenced, and the heat dissipation and heat resistance effects are poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safe high pressure crosslinked polyethylene insulated power cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the heat-insulating and heat-insulating integrated cable comprises an outer protective layer, a heat-insulating layer is arranged in the outer protective layer in a connected mode, linking angle teeth are fixedly arranged on two sides of the inner wall of the outer protective layer, the linking angle teeth are meshed with the heat-insulating layer, an inner protective layer is connected and arranged in the heat-insulating layer, an insulating water-resisting layer is filled between the heat-insulating layer and the inner protective layer, a cable core is arranged in the inner protective layer in a connected mode, a heat-proof fixed layer is arranged on the surface of the cable core in a connected mode, a heat-conducting insulating layer is arranged in the inner protective layer in a filled mode, and a separating ring is arranged on one side of the outer protective layer in a sliding mode.

Preferably, a plurality of heat dissipation grooves are formed in two sides of the outer protection layer.

Preferably, one end of the outer protection layer is slidably provided with a connecting ring, fixing bolts are fixedly arranged on two sides of the connecting ring, and the separating ring is fixedly connected with the fixing bolts.

Preferably, the separating ring is made of polyethylene.

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

1. the utility model discloses an it is effectual to have guaranteed that the connection between outer protective layer and the insulating layer is stable to link up the angle tooth, and the insulating layer is effectual to have improved the heat resistance for inside cable core, and insulating water barrier is effectual to have guaranteed holistic insulating nature and dampproofing and waterproofing's effect, and the inside independent cable core all has the heat-proof fixed bed to protect and protect, and the heat conduction insulating layer of inside plays insulating effect, has good thermal conductivity simultaneously, and the structural stability of effectual promotion cable conductor itself further satisfies the user demand;

2. the utility model discloses still simultaneously through the effectual heat radiating area that has increased of radiating groove, increase the self radiating effect of cable, the effective laminating that prevents between the cable of the spacer ring in the outside guarantees to leave sufficient partition space, avoids the problem of thermal coagulation, guarantees simultaneously can not cause the phenomenon that breaks away from when the installation is dragged to the holistic high temperature resistance of effectual promotion.

Drawings

FIG. 1 is a schematic cross-sectional view of the high-voltage cross-linked polyethylene insulated power cable of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

fig. 3 is the utility model discloses safe high pressure crosslinked polyethylene insulated power cable side structure schematic diagram.

In the figure: 1. an outer protective layer; 2. a thermal insulation layer; 3. engaging the angle teeth; 4. an inner protective layer; 5. an insulating and water-barrier layer; 6. a cable core; 7. a heat-resistant fixing layer; 8. a thermally conductive insulating layer; 9. a spacer ring; 10. and a heat dissipation groove.

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: including outer protective layer 1, the 1 in-connection of outer protective layer is provided with insulating layer 2, the fixed linking angle tooth 3 that is provided with in 1 inner wall both sides of outer protective layer, linking angle tooth 3 and the meshing of insulating layer 2, the 2 in-connection of insulating layer is provided with inner protective layer 4, it is provided with insulating water barrier 5 to fill between insulating layer 2 and the inner protective layer 4, the 4 in-connection of inner protective layer is provided with

cable core

6, 6 surface connections of cable core are provided with heat protection fixed layer 7, the intussuseption of inner protective layer 4 is filled with heat conduction insulating layer 8, the slip of 1 one side of outer protective layer is provided with spacer ring 9.

A plurality of heat dissipation grooves 10 are formed in two sides of the outer protection layer 1, so that the heat dissipation area is effectively increased, and the heat resistance is improved; one end of the outer protective layer 1 is provided with a connecting ring in a sliding manner, fixing bolts are fixedly arranged on two sides of the connecting ring, and the separating ring 9 is fixedly connected with the fixing bolts, so that the cables can conveniently move when pulled; the separating ring 9 is made of polyethylene.

The working principle is as follows: when the utility model is used, the angle teeth 3 are jointed to effectively ensure the stable connection between the outer protective layer 1 and the thermal insulation layer 2, the thermal insulation layer 2 effectively improves the heat resistance of the inner cable core 6, the insulating water barrier layer 5 effectively ensures the integral insulating property and the dampproof and waterproof effect, the inner independent cable core 6 is protected and protected by the heat-proof fixing layer 7, the inner heat-conducting insulation layer 8 has the insulation effect and simultaneously has good heat conductivity, the heat-radiating area is effectively increased by the heat-radiating grooves 10 when in use, the self heat-radiating effect of the cable is increased, the separation ring 9 at the outer side effectively prevents the lamination between the cables, ensures that enough separation space is reserved, and avoids the problem of thermal coagulation, the utility model has the advantages of simple structure, convenient use and good use effect, effectively improves the structural stability of the cable, guarantee simultaneously can not cause the phenomenon that breaks away from when the installation is dragged to effectual promotion holistic high temperature resistance further satisfies the user demand.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.

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. Safe high pressure crosslinked polyethylene insulated power cable, including outer protective layer (1), its characterized in that: outer protective layer (1) in-connection is provided with insulating layer (2), outer protective layer (1) inner wall both sides are fixed to be provided with linking angle tooth (3), linking angle tooth (3) and insulating layer (2) meshing, insulating layer (2) in-connection is provided with inner protective layer (4), it is provided with insulating water barrier (5) to fill between insulating layer (2) and inner protective layer (4), inner protective layer (4) in-connection is provided with cable core (6), cable core (6) surface connection is provided with heat protection fixed bed (7), the intussuseption of inner protective layer (4) is filled with heat conduction insulation layer (8), outer protective layer (1) one side slides and is provided with spacer ring (9).

2. A safe high voltage cross-linked polyethylene insulated power cable according to claim 1, characterized in that: a plurality of heat dissipation grooves (10) are formed in the two sides of the outer protection layer (1).

3. A safe high voltage crosslinked polyethylene insulated power cable according to claim 1, characterized in that: one end of the outer protective layer (1) is provided with a connecting ring in a sliding mode, fixing bolts are fixedly arranged on two sides of the connecting ring, and the separating ring (9) is fixedly connected with the fixing bolts.

4. A safe high voltage crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the separating ring (9) is made of polyethylene.