CN202093863U

CN202093863U - Twist-resisting wind energy cable

Info

Publication number: CN202093863U
Application number: CN201120212360XU
Authority: CN
Inventors: 陈亦峰; 杜战芳; 周俊民; 胡俊洪; 葛磊磊; 汤晓涛; 蒋阿良
Original assignee: JIANGSU TIANDILONG CABLE CO Ltd
Current assignee: JIANGSU TIANDILONG CABLE CO Ltd
Priority date: 2011-06-22
Filing date: 2011-06-22
Publication date: 2011-12-28
Anticipated expiration: 2021-06-22

Abstract

A twist-resisting wind energy cable comprises a cable core conductor. The cable core conductor is leftwards regularly twisted from a tinned copper wire, and the cable core conductor is externally provided with an inner liner, an insulation layer, a reinforced layer and an outer sheath from the inside to outside, wherein the inner liner is wound and wrapped by soft non-woven fabric, the insulation layer is made from anti-tearing silicon rubber, the reinforced layer is woven from terylene yarns and the outer sheath is made from a polyurethane elastic by extrusion and packaging. The cable core conductor is leftwards regularly twisted from a tinned copper wire or a harness which is made of the tinned copper wire. The twist-resisting wind energy cable has the advantages of high flexibility and elasticity, twist resistance, stretching resistance, tearing resistance, low loss and long service life.

Description

The anti-wind energy cable that reverses

Technical field

The utility model relates to cable, especially relates to wind energy cable.

Background technology

Wind energy is the regenerative resource of cleaning, and china natural resources is abundant, can large-scale development, and wind power cost descends year by year, and development prospect is wide.Wind energy cable plays an important role to the wind-powered electricity generation converting system as one of electric component of generating set.

Application number is that the patent documentation of CN201020033343.5 discloses a kind of anti-weather-proof used for wind power generation rubber sleeve flexible cable that reverses, and the insulating barrier of this cable is an ethylene-propylene rubber, and oversheath is a neoprene, though flexible fine, tear resistance is relatively poor; Application number is that the patent documentation of CN201020209072.4 discloses that a kind of wind-driven generator is low temperature resistant, anti-to reverse single core flexible cable, and the insulating barrier of this cable and oversheath are exempts to vulcanize ethylene-propylene rubber, and antidetonation, compressive property are poor.

The utility model content

At the problems referred to above of prior art, the applicant provides a kind of anti-wind energy cable that reverses, and it has high flexibility and elasticity, and ability is reversed, stretch-proof, and tear-proof, loss is little, long service life.

The technical solution of the utility model is as follows:

The anti-wind energy cable that reverses, comprise the cable core conductor, it is characterized in that described cable core conductor adopts tinned copper wire according to the regular stranded formation of left-hand, the outside of cable core conductor sets gradually inner covering, insulating barrier, reinforced layer, oversheath from inside to outside, described inner covering constitutes by soft nonwoven fabrics is wrapped, reinforced layer is made of the dacron thread braiding, and insulating barrier is made of tear-proof silicon rubber material, and oversheath is that polyurethane elastomer material extrusion molding parcel constitutes.

Described cable core conductor adopts the bunch of tinned copper wire formation according to the regular stranded formation of left-hand; Perhaps, the regular stranded formation of described cable core conductor outermost two-layer employing tinned copper wire left-hand, the bunch that all the other each layer employing tinned copper wires constitute is according to the regular stranded formation of left-hand; Described left-hand is regular when stranded, and the stranded pitch diameter ratio of each layer is deferred to 9 by skin successively to internal layer respectively and added 2 rule.

The utility model beneficial technical effects is:

1, the bunch of tinned copper wire or tinned copper wire formation is soft, anti-twisting property is good, adopt left-hand bundle strand mode, further make cable core conductor of the present utility model have flexible preferably and anti-twisting property, this is because all to a direction twisting, when bending, the slip surplus is bigger between each single line, so the anti-twisting property of bunch is good.The stranded lay ratio of each layer of the utility model cable core conductor deferred to 9 by skin successively to internal layer and added 2 rules, has moderate pitch diameter ratio, bunch twists easy shaping again and makes the utility model that good flexibility and anti-twisting property be arranged, and left-hand bundle strand makes the copper bunch be not easy to scatter simultaneously.Otherwise lay ratio is too small, and bunch is not easy to be shaped; Lay ratio is excessive, and then combination cable flexibility and anti-twisting property can reduce.The two-layer employing tinned copper wire of outermost stranded can improve evenness, the smoothness of cable, and each was to stressed more even when cable was reversed.

2, inner covering of the present utility model constitutes by soft nonwoven fabrics is wrapped, and wrapped Duplication is more than or equal to 20%,

The wrapped inner covering of nonwoven fabrics has more flexible and anti-twisting property.

3, insulating barrier of the present utility model is made of tear-proof silicon rubber material, its tear-proof, anti-ly reverse, resist cold, flexible, flexibility good.

4, reinforced layer of the present utility model effectively guarantees flexibility, tensile strength and the anti-twisting property of cable for the dacron thread braid constitutes.

5, oversheath of the present utility model is the TPUE material, this material has higher mechanical properties, can further improve the anti-torsion capacity of cable, and the oversheath of this material has flexibility, elasticity, performance such as low temperature resistant, anti-aging, the useful life that can improve cable.

Description of drawings

Fig. 1 is the utility model schematic diagram.

Among the figure: 1, cable core conductor; 2, inner covering; 3, insulating barrier; 4, reinforced layer; 5, oversheath.

Specific implementation method

The utility model comprises cable core conductor 1, cable core conductor 1 adopts tinned copper wire according to the regular stranded formation of left-hand, the outside of cable core conductor sets gradually inner covering 2, insulating barrier 3, reinforced layer 4, oversheath 5 from inside to outside, described inner covering 2 constitutes by soft nonwoven fabrics is wrapped, insulating barrier 3 is made of tear-proof silicon rubber material, reinforced layer 4 is made of the dacron thread braiding, and oversheath 5 is that polyurethane elastomer material extrusion molding parcel constitutes.Described each structure sheaf all adopts common process to make, and comprises extruding and the extrusion process of sulfuration process and described polyurethane elastomer of described silicon rubber.Above-mentioned each material all adopts marketable material.

Cable core conductor 1 adopts the bunch of tin-coated copper monofilament formation according to the regular stranded formation of left-hand; Perhaps, the regular stranded formation of the two-layer employing tinned copper wire of cable core conductor 1 outermost left-hand, the bunch that all the other each layer employing tinned copper wires constitute is according to the regular stranded formation of left-hand;

The bunch that above-mentioned tinned copper wire constitutes is regular stranded according to the regular left-hand stranded or tinned copper wire of left-hand, its arrangement architecture is: innermost layer is 1 bunch or tinned copper wire, evenly distributed 6 bunch of inferior internal layer or tinned copper wire, every layer increases by 6 bunch or tinned copper wire when outside again, stranded mode is regular arrangement concentric stranding, and stranded lay ratio is followed successively by 9,11 from outside to inside, 13,15 ...The number of plies (or the cable core cross-sectional area of conductor is long-pending) that cable core conductor 1 is stranded and the line footpath of tinned copper wire or bunch by current capacity of the present utility model according to the conventional design value.The multiple strand equipment of the pack equipment of bunch and cable is conventional equipment.

Claims

1. the anti-wind energy cable that reverses, comprise the cable core conductor, it is characterized in that described cable core conductor adopts tinned copper wire according to the regular stranded formation of left-hand, the outside of cable core conductor sets gradually inner covering, insulating barrier, reinforced layer, oversheath from inside to outside, described inner covering constitutes by soft nonwoven fabrics is wrapped, insulating barrier is made of tear-proof silicon rubber material, and reinforced layer is made of the dacron thread braiding, and oversheath is that polyurethane elastomer material extrusion molding parcel constitutes;

Described cable core conductor adopts the bunch of tinned copper wire formation according to the regular stranded formation of left-hand; Perhaps, the regular stranded formation of described cable core conductor outermost two-layer employing tinned copper wire left-hand, the bunch that all the other each layer employing tinned copper wires constitute is according to the regular stranded formation of left-hand.

2. according to the described anti-wind energy cable that reverses of claim 1, it is characterized in that described left-hand is regular when stranded, the stranded pitch diameter ratio of each layer is deferred to 9 by skin successively to internal layer respectively and is added 2 rule.

3. according to the described anti-wind energy cable that reverses of claim 1, it is characterized in that the wrapped Duplication of described nonwoven fabrics inner covering is more than or equal to 20%.