CN217562269U

CN217562269U - Polyvinyl chloride insulating high-temperature-resistant power cable with fire-resistant armor

Info

Publication number: CN217562269U
Application number: CN202221511284.7U
Authority: CN
Inventors: 李颖; 张利明; 贾志刚
Original assignee: Xi'an Mingyuan Sound And Light Art Application Engineering Co ltd
Current assignee: Xi'an Mingyuan Sound And Light Art Application Engineering Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-10-11
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses an insulating high temperature resistant power cable of polyvinyl chloride with fire-resistant armor, including the first insulation layer, inner core of inside fixedly connected with on the first insulation layer, the outer wall on first insulation layer is the three supporting shoe of form fixedly connected with of encircleing, and three the equal common fixedly connected with one deck second insulating layer of outer wall of supporting shoe, it is three installation pipe of the equal common fixedly connected with of adjacent inner wall of supporting shoe, it is beneficial to be: the steel wire armor supports power cable, it is sunken when preventing that power cable from receiving the striking, protect inside electric core, the installation pipe is protected inside outer core and is supported power cable simultaneously, when power cable part receives the conflagration, the heat conducts to the heat conduction silk through the oversheath, the heat conduction silk conducts the heat, with the heat effluvium, reduce the heat that the heat source produced, the outside second flame retardant coating of heat conduction silk reduces the influence of heat to the inside inner core of cable and outer core simultaneously, prevent to receive high temperature melting.

Description

Polyvinyl chloride insulating high-temperature-resistant power cable with fire-resistant armor

Technical Field

The utility model relates to a power cable technical field specifically is an insulating high temperature resistant power cable of polyvinyl chloride with fire-resistant armor.

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 in industrial and mining enterprises and power transmission lines under river-crossing seawater.

When some polyvinyl chloride insulated power cables are used, the power cables cannot bear higher temperature, so that partial surfaces of the power cables can be melted after being influenced by high temperature,

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an insulating high temperature resistant power cable of polyvinyl chloride with fire-resistant armor 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: a polyvinyl chloride insulating high-temperature-resistant power cable with fire-resistant armor comprises a first insulating layer, wherein an inner core is fixedly connected inside the first insulating layer, three supporting blocks are fixedly connected to the outer wall of the first insulating layer in a surrounding mode, and a second insulating layer is fixedly connected to the outer walls of the three supporting blocks together;

the adjacent inner walls of the three supporting blocks are fixedly connected with an installation pipe together, the inner walls of the installation pipe are fixedly connected with a plurality of outer cores, the outer wall of the second insulating layer is fixedly connected with a first flame retardant coating, and the outer wall of the first flame retardant coating is fixedly connected with a layer of steel wire armor;

the outer wall of the steel wire armor is fixedly connected with a second fire-resistant layer, the outer wall of the second fire-resistant layer is fixedly connected with a plurality of heat conducting wires in a surrounding mode, and the outer walls of the plurality of heat conducting wires are fixedly connected with an outer sheath.

Preferably, the inner walls of the three installation tubes are filled with filling materials.

Preferably, three of the mounting tubes are arranged in an arc shape.

Preferably, a plurality of heat conducting wires are wound outside the second fire-resistant layer.

Preferably, the outer sheath is made of polyvinyl chloride.

Compared with the prior art, the beneficial effects of the utility model are that: the steel wire armor supports power cable, it is sunken when preventing that power cable from receiving the striking, protect inside electric core, the installation pipe is protected the outer core of inside and is supported power cable simultaneously, when power cable part receives the conflagration, the heat conducts to the heat conduction silk through the oversheath, the heat conduction silk conducts the heat, with the heat effluvium, reduce the heat that the heat source produced, the outside second flame retardant coating of heat conduction silk reduces the influence of heat to the inside inner core of cable and outer core simultaneously, prevent to receive high temperature melting.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic view of the three-dimensional structure of the mounting pipe of the present invention;

fig. 3 is a schematic view of the supporting block mounting structure of the present invention.

In the figure: 1. a first insulating layer; 2. an inner core; 3. a supporting block; 4. a second insulating layer; 5. installing a pipe; 6. an outer core; 7. a first refractory layer; 8. steel wire armoring; 9. a second refractory layer; 10. heat conducting wires; 11. an outer sheath; 12. and (3) a filling material.

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: a polyvinyl chloride insulation high-temperature-resistant power cable with fire-resistant armor comprises a first insulation layer 1, wherein an inner core 2 is fixedly connected inside the first insulation layer 1, three supporting blocks 3 are fixedly connected to the outer wall of the first insulation layer 1 in a surrounding manner, and a second insulation layer 4 is fixedly connected to the outer walls of the three supporting blocks 3 together;

adjacent inner walls of the three supporting blocks 3 are fixedly connected with an installation pipe 5 together, the inner walls of the installation pipe 5 are fixedly connected with a plurality of outer cores 6, the outer wall of the second insulating layer 4 is fixedly connected with a first flame retardant coating 7, and the outer wall of the first flame retardant coating 7 is fixedly connected with a layer of steel wire armor 8;

the outer wall of the steel wire armor 8 is fixedly connected with a second fire-resistant layer 9, the outer wall of the second fire-resistant layer 9 is fixedly connected with a plurality of heat conducting wires 10 in a surrounding shape, and the outer walls of the plurality of heat conducting wires 10 are fixedly connected with an outer sheath 11 together.

Wherein, the inner walls of the three mounting tubes 5 are filled with the filling material 12.

Wherein, three installation pipes 5 are arranged in an arc shape.

Wherein, a plurality of heat conducting wires 10 are wound outside the second fire-resistant layer 9.

Wherein, the outer sheath 11 is made of polyvinyl chloride.

Specifically, use the utility model discloses the time, when power cable receives the conflagration locally, the heat conducts to heat conduction silk 10 through oversheath 11, heat conduction silk 10 conducts the heat, with the heat effluvium, reduce the heat that the heat source produced, the outside second flame retardant coating 9 of heat conduction silk 10 reduces the influence of heat to cable inside inner core 2 and outer core 6 simultaneously, prevent to receive high-temperature melting, steel wire armor 8 supports power cable, it is sunken when preventing that power cable from receiving the striking, protect inside electric core, installation pipe 5 supports power cable to inside outer core 6 simultaneously, second insulating layer 4 carries out insulation treatment to inner core 2 and outer core 6, supporting shoe 3 increases the support of power cable of installation pipe 5, first insulating layer 1 carries out insulation treatment to inner core 2.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "disposed", "connected", "fixed", "screwed" and the like are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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. The polyvinyl chloride insulated high-temperature-resistant power cable with the fire-resistant armor comprises a first insulating layer (1), and is characterized in that an inner core (2) is fixedly connected inside the first insulating layer (1), the outer wall of the first insulating layer (1) is fixedly connected with three supporting blocks (3) in a surrounding manner, and the outer walls of the three supporting blocks (3) are fixedly connected with a second insulating layer (4) together;

the adjacent inner walls of the three supporting blocks (3) are fixedly connected with an installation pipe (5) together, the inner walls of the installation pipe (5) are fixedly connected with a plurality of outer cores (6), the outer wall of the second insulating layer (4) is fixedly connected with a first flame retardant coating (7), and the outer wall of the first flame retardant coating (7) is fixedly connected with a layer of steel wire armor (8);

the outer wall of the steel wire armor (8) is fixedly connected with a second fire-resistant layer (9), the outer wall of the second fire-resistant layer (9) is fixedly connected with a plurality of heat conducting wires (10) in a surrounding mode, and the outer walls of the heat conducting wires (10) are fixedly connected with an outer sheath (11) together.

2. A fire-resistant sheathed polyvinyl chloride insulated high temperature power cable according to claim 1, characterized in that: the inner walls of the three mounting pipes (5) are filled with filling materials (12).

3. A fire-resistant armoured polyvinyl chloride insulated high temperature resistant power cable according to claim 1 characterized in that: the three mounting pipes (5) are arranged in an arc shape.

4. A fire-resistant armoured polyvinyl chloride insulated high temperature resistant power cable according to claim 1 characterized in that: and a plurality of heat conducting wires (10) are wound outside the second fire-resistant layer (9).

5. A fire-resistant armoured polyvinyl chloride insulated high temperature resistant power cable according to claim 1 characterized in that: the outer sheath (11) is made of polyvinyl chloride.