CN208477958U - A kind of cold-resistant distortion resistant flexible cable of wind-power electricity generation - Google Patents

Abstract

The utility model discloses a kind of cold-resistant distortion resistant flexible cables of wind-power electricity generation, including insulated electric conductor, liner layer, external sheath layer, the prefabricated tension filling of tension shielding layer and center；Liner layer is wrapped up outside the bundles of insulated electric conductor, external sheath layer is wrapped up outside the liner layer, tension shielding layer is set between the liner layer and the external sheath layer, the prefabricated tension filling in center is set between the insulated electric conductor.The cable has good cold-resistant and warp resistance characteristic.

Description

A kind of cold-resistant distortion resistant flexible cable of wind-power electricity generation

Technical field

The utility model relates to the technical field of wire and cable, especially a kind of wind-power electricity generation resists cold distortion resistant flexible cable.

Background technique

As the wind-power electricity generation of one of renewable energy, since resource potential is huge, environmental pollution is low, can continuous utilization, And generation technology has been mature on the whole, and economy has been approached conventional energy resource, in being paid much attention to for China.China has rich Rich wind energy resources, national wind-powered electricity generation total installation of generating capacity reach the developing goal of 30,000,000 kW.This great market brings wind-powered electricity generation Industry flourishes, while also having expedited the emergence of the demand to cable for wind power generation.Due to the bad environments in wind-power electricity generation place, Blower service life is longer, and some cables need to also constantly be rotated with blower, very high to the performance requirement of cable.Existing electricity Cable is easy that sheath cracking occurs in constantly rotation, shields the accidents such as copper wire fractures, insulated wire cores are broken, and can not have simultaneously There is cold-resistant and resistance to torsion this two to use characteristic.

Utility model content

The purpose of this utility model is above-mentioned technical problem to be solved, and provides a kind of cold-resistant distortion resistant flexible cable of wind-power electricity generation The utility model solves technical solution used by the technical problem: a kind of cold-resistant distortion resistant flexible cable of wind-power electricity generation, including Insulated electric conductor, liner layer, external sheath layer and tension shielding layer；Liner layer is wrapped up outside the bundles of insulated electric conductor, described External sheath layer is wrapped up outside liner layer, tension shielding layer is set between the liner layer and the external sheath layer, it is described exhausted at more The prefabricated tension filling in center is set between edge conductor.

Further, the insulated electric conductor is made of conductor and insulating layer, and the insulating layer is wrapped in outside the conductor, institute It states insulating layer to be made of nano modified organosilicon rubber, the conductor is by twisted ultra-fine tin plating soft copper monofilament and is being woven in DuPont fibrids silk outside ultra-fine tin plating soft copper monofilament is made.

Preferably, the liner layer is made of thermoplastic polyester elastomer.

Preferably, the external sheath layer is made of conjugated polyether ester elastomer.

Further, the tension shielding layer includes shielded layer and tensile layer；The shielded layer by tinned copper wire weave and At the tensile layer is made of DuPont fibrids；The DuPont fibrids of the tensile layer are woven in outside the shielded layer.

Preferably, the prefabricated tension filling in the center is co-extruded by DuPont fibrids and polyethylene foamed.

Compared with prior art, there is following good effect:

1. the utility model have cold-resistant, wear-resisting, resisting salt fog corrosion, wet-heat resisting, resistance to mineral oil and fuel oil, it is anti-twist, The characteristics such as tensile strength height adapt to the harsh use environment of wind-power electricity generation.

2. conductor is twisted by DuPont fibrids silk and ultra-fine tin plating soft copper monofilament, guarantee that conductor has excellent softness special Property and good warp resistance characteristic.

3. insulating layer material replaces traditional thermoplastic elastomer (TPE) insulating materials using nano modified organosilicon rubber material, Guarantee the insulating properties of cable, promote the strength of materials, resistance to ag(e)ing and anti-twist characteristic.

4. liner layer uses thermoplastic polyester elastomeric material, the flame retardant property of material is improved.

5. tension shielding layer weaves a DuPont fibrids silk outside every ingot tinned copper wire, tensile strength is improved.

The utility model is described in further detail with reference to the accompanying drawings and examples.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Wherein, 1- insulated electric conductor, the prefabricated tension filling in the center 2-, 3- liner layer, 4- tension shielding layer, 5- external sheath layer, 11- insulating layer, 12- conductor, 41- shielded layer, 42- tensile layer

Specific embodiment

It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.

The distortion resistant flexible cable as shown in Figure 1, a kind of wind-power electricity generation described in the utility model resists cold, including center are prefabricated anti- Draw filling 2, insulated electric conductor 1, liner layer 3, tension shielding layer 4 and external sheath layer 5.It is wrapped up outside the bundles of insulated electric conductor 1 Liner layer 3 wraps up external sheath layer 5 outside the liner layer 3, and tension screen is arranged between the liner layer 3 and the external sheath layer 5 Layer 4 is covered, the prefabricated tension filling 2 in center is set between the insulated electric conductor 1.

The prefabricated tension filling 2 in center is co-extruded by DuPont fibrids and polyethylene foamed.This set makes cable Tensile strength greatly improve, while resist bending preferably can be used to be frequently bended use.

The insulated electric conductor 1 includes conductor 12 and insulating layer 11.The insulating layer 11 is wrapped in outside the conductor 12, described Insulating layer 11 is made of nano modified organosilicon rubber, the nano modified organosilicon rubber be using organic silicon rubber as host agent, It is aided with nano-gas-phase carbon black, curing agent, coupling agent etc., constitutes reactive polymer, be cross-linked into dimensional network structure body, remain with The excellent insulating properties of machine silicon rubber and high-elastic characteristic, improve organic silicon rubber surface flatness and physical mechanical strength, reduction rub Coefficient is wiped, using the nano modified organosilicon rubber material, when conductor 12 bends, nano modified organosilicon rubber is exhausted Edge material can be consistent with the deformation of conductor 12, the alternate stress that reduction copper conductor is subject to when deforming to fatigue limit Hereinafter, avoiding the occurrence of conductor break；When insulated wire cores twist, because nano modified organosilicon rubber is with very wide Regime of elastic deformation, can to avoid occur due to torsion cracking phenomena generation.It is super-weathering resistance, anti-aging, it greatly improves The service life of cable product.The conductor 12 is by twisted ultra-fine tin plating soft copper monofilament and is being woven in ultra-fine tin plating soft copper DuPont fibrids silk outside monofilament is made, and presses twisting process using special, stranded conductor meets specified in GB/T 3956 The regulation of 6 class conductors guarantees that conductor has excellent flexible nature, is more easier bending and uses.

The liner layer 3 is made of thermoplastic polyester elastomer, and the thermoplastic polyester elastomer is a kind of containing fragrance A small amount of stone through dense sulfuric acid treatment can be added in the block copolymer of adoption ester hard section and aliphatic polyether soft segment into reaction kettle Ink and ammonium polyphosphate (APP) fire retardant, the two are used in combination, and are greatly improved the flame retardant property of material.The thermoplastic polyester Elastomer keeps insulated electric conductor position more stable, avoids that play occurs during cable mobile use.

The tension shielding layer 4 includes shielded layer 41 and tensile layer 42.The shielded layer 41 is woven by tinned copper wire, The tensile layer 42 is made of DuPont fibrids；The DuPont fibrids of the tensile layer 42 are woven in outside the shielded layer 41, and tin plating Copper wire, which rises, carries out braiding composition tension shielding layer, has higher tensile strength.

The external sheath layer 5 is made of conjugated polyether ester elastomer.The conjugated polyether ester elastomer is by thermoplastic polyester elastomer Other a small amount of plasticizer, lubricant and antioxidant is added in body, is made after abundant fully reacting, the conjugated polyether ester elastomer There are the characteristics such as cold-resistant, wear-resisting, resisting salt fog corrosion, mould proof, wet-heat resisting, chemically-resistant solvent, resistance to mineral oil and fuel oil simultaneously, And authenticated by RoHS and REACH, hardness (shore A) is 65 ± 3.

The extrusion way of the insulated electric conductor 1, liner layer 3 and external sheath layer 5 is squash type.

For the utility model by selecting new material, structure optimization, technological design, cable can have excellent resist cold simultaneously With resistance to torque characteristic, cable bend cycle-index is more than 50,000,000 times, under room temperature, and cable can be not less than 20000 times by the period Anti-torsion performance test 5000 anti-torsion performance tests can be not less than by the period at -50 DEG C of low temperature.

The utility model is not limited to above embodiment, if various changes or modifications to the utility model do not take off Spirit and scope from the utility model, if these modification and variations belong to the claims and equivalents of the utility model Within the scope of, then the utility model is also intended to encompass these modification and variations.

Claims (6)

1. The distortion resistant flexible cable 1. a kind of wind-power electricity generation resists cold, it is characterised in that: including insulated electric conductor, liner layer, external sheath layer with Tension shielding layer；Liner layer is wrapped up outside the bundles of insulated electric conductor, external sheath layer is wrapped up outside the liner layer, it is described interior Tension shielding layer is set between lining and the external sheath layer, the prefabricated tension in center is set between the more insulated electric conductors and is filled out It fills.
2. The distortion resistant flexible cable 2. a kind of wind-power electricity generation according to claim 1 resists cold, it is characterised in that: the insulated electric conductor It is made of conductor and insulating layer, the insulating layer is wrapped in outside the conductor, and the insulating layer is by nano modified organosilicon rubber It is made, the conductor is by twisted ultra-fine tin plating soft copper monofilament and in the DuPont fibrids being woven in outside ultra-fine tin plating soft copper monofilament Silk is made.
3. The distortion resistant flexible cable 3. a kind of wind-power electricity generation according to claim 2 resists cold, it is characterised in that: the liner layer by Thermoplastic polyester elastomer is made.
4. The distortion resistant flexible cable 4. a kind of wind-power electricity generation according to claim 3 resists cold, it is characterised in that: the external sheath layer It is made of conjugated polyether ester elastomer.
5. The distortion resistant flexible cable 5. a kind of wind-power electricity generation according to claim 4 resists cold, it is characterised in that: the tension shielding Layer includes shielded layer and tensile layer；The shielded layer is woven by tinned copper wire, and the tensile layer is made of DuPont fibrids；Institute The DuPont fibrids for stating tensile layer are woven in outside the shielded layer.
6. The distortion resistant flexible cable 6. a kind of wind-power electricity generation according to claim 5 resists cold, it is characterised in that: the center is prefabricated Tension filling is co-extruded by DuPont fibrids and polyethylene foamed.