CN214203302U

CN214203302U - High-temperature-resistant railway power cable

Info

Publication number: CN214203302U
Application number: CN202120559006.8U
Authority: CN
Inventors: 江宁; 耿一峰; 魏建成; 段庆涛; 段学龙
Original assignee: Yuanyang Cable Co ltd
Current assignee: Yuanyang Cable Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-09-14
Anticipated expiration: 2031-03-18

Abstract

The utility model relates to the technical field of cables, in particular to a high-temperature-resistant railway power cable, which comprises a plurality of groups of mutually twisted wire cores, wherein the outer side of the wire cores is sleeved with an insulating layer, a filling layer is arranged between the insulating layer and the wire cores, the outer side of the insulating layer is coated with a heat-insulating layer, the high-temperature-resistant railway power cable can primarily insulate heat of a sheath layer of the cable and the wire cores inside the cable through the arranged heat-insulating cavity, and can insulate heat of the wire cores inside the cable again through the arranged heat-insulating layer, thereby ensuring the high-temperature-resistant performance of the cable, and the temperature in the heat-insulating cavity can be effectively radiated through the arranged heat-conducting fins on the sheath layer, thereby further ensuring the working environment of the wire cores, the high-temperature-resistant cable has reasonable design and better high-temperature resistance performance, and ensures, thereby greatly reducing the occurrence of accidents.

Description

High-temperature-resistant railway power cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a high temperature resistance railway power cable.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation.

Most of the existing railway cables are exposed outdoors, so that the existing railway cables cannot work in a long-time high-temperature environment, the existing railway cables are general in high-temperature resistance, and the cables are very easy to damage in the long-time high-temperature environment, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art and very easily lead to cable damage etc. under the long-time high temperature environment, and the railway power cable of a high temperature resistance that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high temperature resistance railway power cable, includes the sinle silk of the mutual transposition of multiunit, the outside cover of sinle silk is equipped with the insulating layer, be provided with the filling layer between insulating layer and the sinle silk, the outside cladding of insulating layer has the insulating layer, the outside cover of insulating layer is equipped with the restrictive coating, one side circumference that the restrictive coating is close to the insulating layer distributes and has the multiunit support, support and restrictive coating integrated into one piece, the support will cut apart the thermal-insulated chamber of multiunit between insulating layer and the restrictive coating, the outside circumference of restrictive coating distributes and has the multiunit conducting strip, the conducting strip runs through the both sides of restrictive coating and is connected with restrictive coating hot melt, the surface rule that the sinle silk was kept away from to the conducting strip distributes and has multiunit radiating fin.

Preferably, the outer side of the sheath layer is sprayed with a reflective coating.

Preferably, the filling layer is fiberglass yarn.

Preferably, the heat insulation layer is made of refractory ceramic fibers.

The utility model provides a high temperature resistance railway power cable, beneficial effect lies in: the utility model discloses a thermal-insulated chamber that sets up comes to the restrictive coating of cable and inside sinle silk ability tentatively thermal-insulated, and come to insulate against heat once more to inside sinle silk through the insulating layer that sets up, thereby the high temperature resistance of cable has been ensured, conducting strip on the restrictive coating through setting up, can effectually dispel the heat to the temperature of thermal-insulated intracavity, thereby further ensure the operational environment of sinle silk, this high temperature resistant cable reasonable in design, and high temperature resistance is better, ensure that the cable can normally work in long-time high temperature environment, thereby great reduction accident takes place.

Drawings

Fig. 1 is the utility model provides a high temperature resistant railway power cable's schematic structure view.

In the figure: 1. a wire core; 2. an insulating layer; 3. a filling layer; 4. a thermal insulation layer; 5. a support; 6. a sheath layer; 7. a thermally insulating cavity; 8. a heat conductive sheet; 9. and (4) radiating fins.

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.

Referring to fig. 1, a high temperature resistance railway power cable, sinle silk 1 including the mutual transposition of multiunit, the outside cover of multiunit sinle silk 1 is equipped with insulating layer 2, be provided with filling layer 3 between insulating layer 2 and the sinle silk 1, the outside cladding of insulating layer 2 has insulating layer 4, the outside cover of insulating layer 4 is equipped with restrictive coating 6, one side circumference that restrictive coating 6 is close to insulating layer 4 distributes and has multiunit support 5, support 5 and restrictive coating 6 integrated into one piece, support 5 cuts apart out multiunit thermal-insulated chamber 7 between insulating layer 4 and the restrictive coating 6, the outside circumference of restrictive coating 6 distributes and has multiunit conducting strip 8, conducting strip 8 runs through the both sides of restrictive coating 6 and is connected with 6 hot melt of restrictive coating, the surface regular distribution that sinle silk 1 was kept away from to conducting strip 8 has multiunit radiating fin 9.

The outside spraying of restrictive coating 6 has the reflection of light coating, and the reflection of light coating of spraying can effectual reflection sunlight to reduce the cable degree of being heated.

The filling layer 3 is made of glass fiber yarns, and the heat insulation layer 4 is made of refractory ceramic fibers.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high temperature resistance railway power cable, includes sinle silk (1) that the multiunit stranded each other, its characterized in that: insulating layers (2) are sleeved outside the wire cores (1), filling layers (3) are arranged between the insulating layers (2) and the wire cores (1), the outer side of the insulating layer (2) is coated with a heat insulating layer (4), the outer side of the heat insulating layer (4) is sleeved with a sheath layer (6), a plurality of groups of brackets (5) are distributed on the circumference of one side of the sheath layer (6) close to the heat insulation layer (4), the support (5) and the sheath layer (6) are integrally formed, the support (5) divides a plurality of groups of heat insulation cavities (7) between the heat insulation layer (4) and the sheath layer (6), a plurality of groups of heat conducting fins (8) are distributed on the outer circumference of the sheath layer (6), the heat conducting fins (8) penetrate through the two sides of the sheath layer (6) and are in hot melting connection with the sheath layer (6), and a plurality of groups of radiating fins (9) are regularly distributed on the surface of the heat conducting fin (8) far away from the wire core (1).

2. The high temperature resistant railway power cable according to claim 1, wherein: the outer side of the sheath layer (6) is sprayed with a reflective coating.

3. The high temperature resistant railway power cable according to claim 1, wherein: the filling layer (3) is glass fiber silk.

4. The high temperature resistant railway power cable according to claim 1, wherein: the heat insulation layer (4) is made of refractory ceramic fibers.