CN216212461U

CN216212461U - Tensile wear-resistant flame-retardant environment-friendly wind energy cable

Info

Publication number: CN216212461U
Application number: CN202122750227.6U
Authority: CN
Inventors: 刘慧�; 龙振国; 张岩
Original assignee: Gold Cup Electric Co ltd
Current assignee: Gold Cup Electric Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-04-05
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable which comprises a conductor extending longitudinally and a protective layer covering the conductor and extending longitudinally, wherein the conductor is formed by stranding a plurality of strands of bare copper wires or tinned copper wires, and the center of the conductor is filled with synthetic fibers; the protective layer is of a multilayer structure and sequentially comprises an isolation layer, an insulating layer, a flame-retardant layer, a sheath layer and a wear-resistant layer from inside to outside on a cross section perpendicular to the longitudinal direction. The cable provided by the utility model has the advantages that the tensile resistance and the wear resistance of the cable are obviously improved, the problems of mutual friction and peeling of the cable during operation, cracking caused by over-gravity of the cable and the like are solved, meanwhile, the cable has excellent high and low temperature resistance, ageing resistance, salt spray resistance and flame retardance, and the strength of the cable meets the requirements of standard load tests.

Description

Tensile wear-resistant flame-retardant environment-friendly wind energy cable

Technical Field

The utility model belongs to the technical field of electric wires and cables, and particularly relates to a tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable.

Background

Wind energy is used as a clean renewable energy source, is also a power generation mode with scale, mature technology and commercial development prospect in a plurality of new energy sources at present, along with the development of a wind power market, the loading capacity of a wind generating set is increased year by year, and the demand of a wind energy cable matched with the wind generating set is increased more and more. The conventional wind energy cable has poor tensile property and wear resistance and short service life in the use process. When the cable is twisted under the action of self gravity, the phenomena of bulging, cracking and twisting are easily generated on the surface of the cable, and the normal use of the cable is influenced.

The utility model discloses a chinese utility model patent CN213635458U discloses a novel high-strength high temperature resistant anti-distortion environment-friendly flexible cable for wind power generation, this cable include the shellproof silk fiber line of kevlar, the outside spiral winding of shellproof silk fiber line of kevlar has the copper monofilament, the outside of copper monofilament is provided with the isolation layer, the outside of isolation layer is equipped with the insulating layer, the outside of insulating layer is equipped with the weaving layer, the outside of weaving layer is equipped with the coating, but this cable is because no restrictive coating, in the fan use, because the gravity of cable itself is overweight, leads to its insulation to have the fracture risk, is difficult to satisfy standard load test requirement.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at the defects of the prior art and provides a tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable.

In order to achieve the purpose, the specific technical scheme of the utility model is as follows:

the cable comprises a conductor extending longitudinally and a protective layer covering the conductor and extending longitudinally, wherein the conductor is formed by stranding a plurality of strands of bare copper wires or tinned copper wires, and the center of the conductor is filled with synthetic fibers;

the protective layer is of a multilayer structure and sequentially comprises an isolation layer, an insulating layer, a flame-retardant layer, a sheath layer and a wear-resistant layer from inside to outside on a cross section perpendicular to the longitudinal direction.

Therefore, the cable structure provided by the utility model is provided with the flame-retardant layer and the sheath layer, so that the total thickness of the insulating layer, the flame-retardant layer and the sheath layer of the cable provided by the utility model is more than 1 time of the thickness of the cable insulating layer in the prior art, and the strength of the cable provided by the utility model meets the requirements of standard load tests.

Further, the synthetic fiber is made of aramid fiber.

Further, the isolation layer is made of PTFE wrapping tapes.

Furthermore, the insulating layer is made of ethylene propylene rubber.

Still further, the flame retardant layer is made of alkali-free glass fiber tape.

Further, the sheath layer is a chlorosulfonated polyethylene sheath.

Furthermore, the wear-resistant layer is formed by weaving glass fibers or aramid fibers.

In addition, the protective layer also comprises a coating layer positioned on the outermost layer, and the coating layer is made of a silicone resin material.

In addition, the diameter of the bare copper wire or the tinned copper wire is 0.19mm-0.51 mm.

In addition, the total thickness of the flame-retardant layer and the sheath layer is 3mm-4mm, and the total thickness of the flame-retardant layer and the sheath layer is preferably 3.5 mm.

The cable provided by the utility model has the advantages that the tensile resistance and the wear resistance of the cable are obviously improved, the problems of mutual friction and peeling of the cable during operation, cracking caused by over-gravity of the cable and the like are solved, meanwhile, the cable has excellent high and low temperature resistance, ageing resistance, salt spray resistance and flame retardance, and the strength of the cable meets the requirements of standard load tests.

Drawings

FIG. 1 is a schematic view of the structure of the tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable of the present invention.

The notation in the figure is: 1. aramid fibers; 2. a conductor; 3. an isolation layer; 4. an insulating layer; 5. a flame retardant layer; 6. a sheath layer; 7. and a wear-resistant layer.

Detailed Description

For a better understanding of the objects, structure and function of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

As shown in fig. 1, the tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable of the present invention comprises a conductor 2 extending in a longitudinal direction and a protective layer covering the conductor 2 and extending in the longitudinal direction; the conductor 2 is formed by stranding a plurality of strands of bare copper wires or tinned copper wires with the diameter of 0.19-0.51 mm, and the performance of the conductor is in accordance with the specification of the fifth type of conductor in GB/T3956-; the protective layer is of a multilayer structure and sequentially comprises an isolation layer 3, an insulation layer 4, a flame-retardant layer 5, a sheath layer 6 and a wear-resistant layer 7 from inside to outside on a cross section perpendicular to the longitudinal direction.

The isolation layer 3 is made of PTFE wrapping tapes, can improve the distortion resistance of the cable, has higher flexibility and longer flexing life, and can obviously reduce the damage risk of the wire core.

The insulating layer 4 is made of IE4 type ethylene propylene rubber mixture; the working temperature of the insulating layer 4 is-40-90 ℃, the insulating layer can be used at high temperature and low temperature in a moving mode, and the insulating layer has the advantages of good water resistance, ozone resistance, weather aging resistance and the like.

The flame-retardant layer 5 is made of halogen-free low-smoke high-efficiency alkali-free glass fiber wrapping tapes, so that heat transfer can be prevented, and the flame-retardant effect is effectively improved.

The sheath layer 6 adopts a chlorosulfonated polyethylene sheath, and has good acid and alkali resistance, salt mist resistance, weather resistance and other properties; the total thickness of the flame-retardant layer and the sheath layer is 3mm-4mm, and as a preferred embodiment of the utility model, the total thickness of the flame-retardant layer and the sheath layer is 3.5 mm.

The wear-resistant layer 7 is formed by weaving glass fibers or aramid fibers, and the glass fibers or the aramid fibers have the characteristics of high tensile strength, high wear resistance, high toughness and the like, so that the tensile strength and the tensile torsion performance of the cable are further enhanced.

The coating layer is made of organic silicon resin materials, so that the surface of the wear-resistant layer 7 is smooth, and the surface friction force of the cable during twisting is reduced.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable comprises a longitudinally extending conductor (2) and a longitudinally extending protective layer coated outside the conductor (2), and is characterized in that the conductor (2) is formed by stranding a plurality of strands of bare copper wires or tinned copper wires, and the center of the conductor (2) is filled with synthetic fibers;

the protective layer is of a multilayer structure and sequentially comprises an isolation layer (3), an insulating layer (4), a flame-retardant layer (5), a sheath layer (6) and a wear-resistant layer (7) from inside to outside on a cross section perpendicular to the longitudinal direction.

2. The tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable according to claim 1, wherein the synthetic fiber is made of aramid fiber (1).

3. The tension-resistant, wear-resistant, flame-retardant and environment-friendly wind energy cable as claimed in claim 1, wherein the isolation layer (3) is made of a PTFE tape.

4. The tension-resistant, wear-resistant, flame-retardant and environment-friendly wind energy cable as claimed in claim 1, wherein the insulating layer (4) is made of ethylene propylene rubber material.

5. The environment-friendly wind energy cable with tensile strength, wear resistance, flame retardance and according to claim 1, wherein the flame retardant layer (5) is made of alkali-free glass fiber tape.

6. The tensile, wear-resistant, flame-retardant and environment-friendly wind energy cable according to claim 1, wherein the sheath layer (6) is a chlorosulfonated polyethylene sheath.

7. The environment-friendly wind energy cable with tensile strength, wear resistance, flame retardance and the like as claimed in claim 1, wherein the wear-resistant layer (7) is woven from glass fibers or aramid fibers.

8. The environment-friendly wind energy cable with tensile strength, wear resistance, flame retardance and the like as claimed in claim 1, wherein the protective layer further comprises a coating layer located at the outermost layer, and the coating layer is made of a silicone resin material.

9. The environment-friendly wind energy cable with tensile strength, wear resistance, flame retardance and the like as claimed in claim 1, wherein the diameter of the bare copper wire or the tinned copper wire is 0.19mm-0.51 mm.

10. The environment-friendly wind energy cable with tensile strength, wear resistance, flame retardance and according to claim 1, wherein the total thickness of the flame retardant layer (5) and the sheath layer (6) is 3mm-4 mm.