CN217426438U

CN217426438U - High flame-retardant fire-resistant power cable

Info

Publication number: CN217426438U
Application number: CN202220789107.9U
Authority: CN
Inventors: 张衡; 吕绪耀; 苏风平; 王立和
Original assignee: Shandong Zhong Dian Tong Cable Technology Co ltd
Current assignee: Shandong Zhong Dian Tong Cable Technology Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-09-13
Anticipated expiration: 2032-04-07

Abstract

The utility model discloses a high fire-retardant fire-resistant power cable, the power cable comprises a cable body, the cable body includes the top layer, the inside on top layer is equipped with first fire-retardant layer, the inside on first fire-retardant layer is equipped with the shielding layer, the inside of shielding layer is equipped with the waterproof layer, the inside of waterproof layer is equipped with the filling layer, the internally mounted of filling layer has four fire-retardant layers of second, four the inside on the fire-retardant layer of second all is equipped with the insulating layer, four the inside of insulating layer all is equipped with the inner core. The utility model discloses in, the PEEK material is chooseed for use on first fire-retardant layer, has very good corrosion-resistant, ageing resistance, still can keep excellent characteristic simultaneously under high temperature high pressure, can improve the fire resistance of cable, and the PVDF material that the fire-retardant layer of rethread second chooseed for use further improves the fire resistance of cable, has also improved the corrosion resistance and the oxidation resistance of cable simultaneously, and the PVDF material still has good pyroelectricity nature simultaneously.

Description

High flame-retardant fire-resistant power cable

Technical Field

The utility model relates to a power cable technical field especially relates to high fire-retardant fire-resistant power cable.

Background

The power cable is used for transmitting and distributing electric energy, plays an important role in linking in the basic construction of China, 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;

common power cable flame retardant property is relatively poor in the existing market, so that the application range is relatively small, and meanwhile, the power cable can generate a large amount of heat in the using process, and if the heat cannot be quickly discharged, the service life of the cable can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcomings existing in the prior art, and providing a high flame-retardant fire-resistant power cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: high fire-retardant fire-resistant power cable, including the cable body, the cable body includes the top layer, the inside on top layer is equipped with first fire-retardant layer, the inside on first fire-retardant layer is equipped with the shielding layer, the inside of shielding layer is equipped with the waterproof layer, the inside of waterproof layer is equipped with the filling layer, the internally mounted of filling layer has four fire-retardant layers of second, four the inside on the fire-retardant layer of second all is equipped with insulating layer, four the inside of insulating layer all is equipped with the inner core, a plurality of radiator unit are installed to the cable body.

Furthermore, the surface layer comprises an armor, the top of the armor is provided with a wear-resistant layer, and the bottom of the armor is provided with a corrosion-resistant layer, so that the cable is protected.

It is further, a plurality of radiator unit all includes the cooling ring, and cooling ring fixed mounting is at the surface on top layer, the even fixedly connected with a plurality of heat radiation fins of surface of cooling ring, the even fixedly connected with a plurality of heat conduction poles of internal surface of cooling ring, and the surface that the heat conduction pole runs through the top layer perpendicularly extends to the inside of filling layer, is convenient for derive the heat in the filling layer, gives off through heat radiation fins.

Furthermore, the filling layer comprises asbestos fibers and heat-conducting glue, so that the fireproof heat-conducting material has good fire resistance and is beneficial to heat conduction.

Furthermore, the first flame-retardant layer is made of a PEEK material, so that the first flame-retardant layer has very good corrosion resistance and ageing resistance, and can still maintain excellent characteristics at high temperature and high pressure.

Furthermore, the second flame-retardant layer is made of PVDF material, and has good chemical corrosion resistance, high temperature resistance, oxidation resistance and pyroelectricity.

Furthermore, the waterproof layer is a waterproof film and has good waterproof performance.

The utility model has the advantages that:

1. the utility model discloses when using, this high fire-retardant fire-resistant power cable, PEEK material is selected for use on first fire-retardant layer, has very good corrosion-resistant, ageing resistance, still can keep excellent characteristic under high temperature and high pressure simultaneously, can improve the fire resistance of cable, and the PVDF material of rethread second fire-retardant layer chooseing for use further improves the fire resistance of cable, has also improved the corrosion resistance and the oxidation resistance of cable simultaneously, and the PVDF material still has good pyroelectricity simultaneously;

2. the utility model discloses when using, this high fire-retardant fire-resistant power cable, its filling layer comprises asbestos fiber and heat-conducting glue, not only has good refractiveness, also is favorable to the heat conduction simultaneously, uses with the radiating component cooperation, can give off cable inside heat fast, improves cable life.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the surface layer structure of the present invention.

Illustration of the drawings:

1. a surface layer; 11. a wear layer; 12. armoring; 13. a corrosion-resistant layer; 2. a heat dissipating component; 21. a heat dissipation ring; 22. a heat dissipating fin; 23. a heat conducting rod; 3. a first flame retardant layer; 4. a shielding layer; 5. a waterproof layer; 6. a filling layer; 7. a second flame retardant layer; 8. an insulating layer; 9. an inner core.

Detailed Description

Fig. 1 to 3 show, relate to high fire-retardant fire-resistant power cable, including the cable body, the cable body includes top layer 1, the inside of top layer 1 is equipped with first fire-retardant layer 3, the inside of first fire-retardant layer 3 is equipped with shielding layer 4, shielding layer 4's inside is equipped with waterproof layer 5, waterproof layer 5's inside is equipped with filling layer 6, filling layer 6's internally mounted has four fire-retardant layers of second 7, the inside of four fire-retardant layers of second 7 all is equipped with insulating layer 8, the inside of four insulating layers 8 all is equipped with inner core 9, a plurality of radiator unit 2 are installed to the cable body.

The filling layer 6 comprises asbestos fibers and heat-conducting glue.

The first flame-retardant layer 3 is made of PEEK material.

The second flame-retardant layer 7 is made of PVDF material.

The waterproof layer 5 is a waterproof film.

As shown in fig. 2, the surface layer 1 includes an armor 12, a wear-resistant layer 11 is provided on the top of the armor 12, and a corrosion-resistant layer 13 is provided on the bottom of the armor 12.

As shown in fig. 3, each of the plurality of heat dissipation assemblies 2 includes a heat dissipation ring 21, the heat dissipation ring 21 is fixedly mounted on the outer surface of the surface layer 1, a plurality of heat dissipation fins 22 are uniformly and fixedly connected to the outer surface of the heat dissipation ring 21, a plurality of heat conduction rods 23 are uniformly and fixedly connected to the inner surface of the heat dissipation ring 21, and the heat conduction rods 23 vertically penetrate through the outer surface of the surface layer 1 and extend to the inside of the filling layer 6.

When using high fire-retardant fire-resistant power cable, top layer 1 can carry out a protection to the cable body, and the first fire-retardant layer 3 and the fire-retardant layer 7 of second of rethread setting carry out double-deck fire-retardant, increase whole fire resistance, and filling layer 6 cooperates with heat conduction rod 23, is favorable to leading out the heat in the cable body to give off through radiating ring 21 and heat radiation fins 22.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. High fire-retardant fire-resistant power cable, including the cable body, its characterized in that: the cable body includes top layer (1), the inside on top layer (1) is equipped with first fire-retardant layer (3), the inside on first fire-retardant layer (3) is equipped with shielding layer (4), the inside of shielding layer (4) is equipped with waterproof layer (5), the inside of waterproof layer (5) is equipped with filling layer (6), the internally mounted of filling layer (6) has four fire-retardant layers of second (7), four the inside on the fire-retardant layer of second (7) all is equipped with insulating layer (8), four the inside of insulating layer (8) all is equipped with inner core (9), a plurality of radiator unit (2) are installed to the cable body.

2. The high flame retardant fire resistant power cable according to claim 1, wherein: the surface layer (1) comprises an armor (12), the top of the armor (12) is provided with a wear-resistant layer (11), and the bottom of the armor (12) is provided with a corrosion-resistant layer (13).

3. The high flame retardant fire resistant power cable according to claim 1, wherein: it is a plurality of radiator unit (2) all include heat dissipation ring (21), and heat dissipation ring (21) fixed mounting is at the surface of top layer (1), the even fixed connection of surface of heat dissipation ring (21) has a plurality of heat radiation fins (22), the even fixed connection of internal surface of heat dissipation ring (21) has a plurality of heat conduction poles (23), and heat conduction pole (23) run through the surface on top layer (1) perpendicularly and extend to the inside of filling layer (6).

4. The high flame retardant fire resistant power cable according to claim 1, wherein: the first flame-retardant layer (3) is made of PEEK material.

5. The high flame retardant fire resistant power cable according to claim 1, wherein: the second flame-retardant layer (7) is made of PVDF material.

6. The high flame retardant fire resistant power cable according to claim 1, wherein: and the waterproof layer (5) is a waterproof film.