CN201584195U

CN201584195U - Cable for wind power generation

Info

Publication number: CN201584195U
Application number: CN2009202627638U
Authority: CN
Inventors: 李明斌
Original assignee: DONGGUAN NISSEI TRANSMITTING TECHNOLOGY Co Inc
Current assignee: DONGGUAN NISSEI TRANSMITTING TECHNOLOGY Co Inc
Priority date: 2009-11-16
Filing date: 2009-11-16
Publication date: 2010-09-15
Anticipated expiration: 2019-11-16

Abstract

The utility model discloses a cable for wind power generation. The cable comprises a plurality of conductors which are assembled and stranded into conducting wire cores, wherein each conducting wire core is wrapped by a non-woven fabric isolation layer, and a silicon rubber insulation layer is formed outside each isolation layer through extruding to form a conducting wire; the conducting wires are assembled and stranded into a cable core; the cable core is wrapped by a halogen-free flame-retardant wrapping layer; a cellosilk reinforcing layer is woven outside the wrapping layer; an inner polyolefin sheathing layer is extruded outside the reinforcing layer; an armor layer is woven outside the inner sheathing layer; and an outer plastic elastic body sheathing layer is formed outside the armor layer through extruding. The cable for wind power generation has the advantages of better transmission performance, favorable high-temperature, twisting and tensile resistances, as well as long service life.

Description

The used for wind power generation cable

Technical field

The utility model relates to a kind of cable, relates in particular to a kind ofly to have better antitorque commentaries on classics, tensile property, and the used for wind power generation cable of good weatherability.

Background technology

Wind energy is the renewable resource of cleaning, and is widely distributed with it, the amount of containing is huge and advantage such as pollution-free, and makes each country of the whole world more and more higher to the attention degree of wind energy.Along with development of global economy, wind energy market develops rapidly, and along with the development of technological progress and environmental protection cause, wind power generation will can be competed with coal fired power generation fully commercial.China's wind power generation industry is keeping the situation of high speed development, but also has very big gap with the development level of international wind power generation industry, domestic wind power plant mainly relies on import, external dependence is very strong, though cost of wind power generation has descended much, but compare thermal power generation, cost advantage can't obviously be given prominence in a short time, the development of wind power generation industry also has a lot of hindering factors, and wherein the manufacturing cost of wind-force private cable and applicability also are one of key factors that influences its development.

China's wind energy storage capacity is big, it is wide to distribute, but China region is wide, so the wind scale difference is bigger, north-south climate difference is also bigger, according to the difference of environment for use, the performance of wind energy private cable is also had more requirement, as, northern area requires ability-30 ℃ and following low temperature, the coastal area then requires to possess anti-salt fog, prevents functions such as damp and hot, to being used for the wind energy cable of desert area, need have outstanding high temperature resistance and anti-ultraviolet property etc.In wind generator set design, for avoiding the frequent pay-off of great turbine, turbine is gone off course with the wind, reversed for three weeks continuously, just revolution resets again; In wind power generation, the wind-force cable connects blower fan tower bucket and ground column foot, the vertical use, and under this particular environment, the requirement of used for wind power generation cable is very high, weatherabilities such as needs are low temperature resistant preferably, corrosion-resistant, radiation hardness; Simultaneously, for the used for wind power generation cable, also to have twisting property and tensile strength preferably, so-called twisting property is meant, wind power plant is in operation, change along with wind direction, the direction of generator fan blade is also in continuous adjustment, to reach best generating effect, the distribution cable that links to each other with generator is also along with the fan blade rotation of generator twists, this just requires cable can keep the unaffected or destruction of cable key property in twist process, and core can not rupture, and insulation and sheath can not be out of shape or ftracture; So-called tensile property is meant: the wind power plant unit all is mounted in the cabin on the pylon of tens meters to more than 100 meters of height, flying height when being the use of wind energy private cable has tens meters to more than 100 meters, and this just requires cable to have stronger tensile property.The existing cable that is used for wind power generation, in the process that cable reverses, the anti-song poor performance of having mercy on, fracture easily in the use, thus shorten product useful life; Simultaneously, online core insulation layer directly extrudes restrictive coating outward, and in the cable twist process, easily aging adhesion causes reversal of stress between insulating barrier and the jacket layer, is that restrictive coating is fragile.

Therefore, be badly in need of a kind ofly having better antitorque commentaries on classics, stretching resistance performance, and the used for wind power generation cable of good weatherability, long service life.

The utility model content

The purpose of this utility model is to provide a kind of and has better antitorque commentaries on classics, stretching resistance performance, and the used for wind power generation cable of good weatherability, long service life.

For achieving the above object, the technical solution of the utility model is: a kind of used for wind power generation cable is provided, it comprises some conductors, described conductor is gathered stranded formation lead core, described lead core coats the separator of layer of non-woven fabric outward, the insulating barrier of the outer extrusion molding one deck silicon rubber material of described separator constitutes lead, described lead is gathered stranded formation cable core, the covering of one deck halogen-free flameproof material is covered in the outsourcing of described cable core, described covering is woven with the reinforced layer of one deck filament braiding outward, described reinforced layer extrudes the sheath of one deck polyolefin material outward, described sheath weaves one deck armour outward, the outer jacket of the outer extrusion molding one deck plasticity body of described armour.

Preferably, also have the nylon rope obturator between each lead of described cable core, the nylon rope obturator is convenient to stranded moulding between the lead, in use simultaneously, when cable is subjected to big pulling force, can strengthen the tensile strength of cable, prevent that cable core is damaged when pullling.

Preferably, described conductor is soft copper silk or tinned copper wire, and copper wire has good electrical conductivity, and tin coating can prevent corrosion, improves the transmission performance of cable.

Preferably, described armour is formed by nylon and metal wire knitted, the armour that nylon becomes with metal wire knitted have intensity height, flexibility good etc. characteristic, guarantee that cable has tensile property, tear resistance and softness preferably.

Preferably, described outer jacket is the thermoplastic elastomer material, and thermoplastic elastomer has excellent premium properties such as ageing resistance, ozone resistants and weatherability, and hot strength is good, makes this used for wind power generation cable have good weatherability.

Compared with prior art, because the utility model used for wind power generation cable, it comprises some conductors, described conductor is gathered stranded formation lead core, described lead core coats the separator of layer of non-woven fabric outward, the insulating barrier of the outer extrusion molding one deck silicon rubber material of described separator constitutes lead, described lead is gathered stranded formation cable core, the covering of one deck halogen-free flameproof material is covered in the outsourcing of described cable core, described covering is woven with the reinforced layer of one deck filament braiding outward, described reinforced layer extrudes the sheath of one deck polyolefin material outward, and described sheath weaves one deck armour outward, the outer jacket of the outer extrusion molding one deck plasticity body of described armour; The nonwoven fabrics separator prevents that conductor is corroded and insulate; Silicone rubber insulation layer has higher heat resistance and excellent cold tolerance, also has excellent electric insulation; Armour intensity height, softness are good; Outer jacket has good weatherability; Therefore, when this cable has better transmission performance, also have good temperature resistance energy, antitorque commentaries on classics and pull resistance, long service life are arranged.

Description of drawings

Fig. 1 is the cross section structure schematic diagram of the utility model used for wind power generation cable.

Embodiment

With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.

As shown in Figure 1, the utility model used for wind power generation cable comprises some conductors 101, the stranded formation lead core of described conductor 101 set, described lead core coats the separator 102 of layer of non-woven fabric outward, the insulating barrier 103 of described separator 102 outer extrusion molding one deck silicon rubber materials constitutes lead 10, the stranded formation cable core of described lead 10 set, the covering 20 of one deck halogen-free flameproof material is covered in the outsourcing of described cable core, the described covering 20 outer reinforced layers 30 that are woven with the braiding of one deck filament, the described reinforced layer 30 outer sheaths 40 that extrude one deck polyolefin material, described sheath 40 outer braiding one deck armours 50, the outer jacket 60 of described armour 50 outer extrusion molding one deck plasticity bodies; Between stranded cable core, have nylon rope and fill body 70.

Particularly, conductor 101 is soft copper silk or tinned copper wire, and copper wire has good electrical conductivity, and tin coating can prevent corrosion, improves the transmission performance of cable; Insulating barrier 103 is the silicon rubber material, and the silicon rubber material has very high heat resistance and excellent cold tolerance, also has excellent electric insulation performance and ageing-resistant performance and water absorption resistance energy, makes the practical of this cable; Nonwoven fabrics separator 102 between conductor 101 and the insulating barrier 103 can prevent that conductor 101 is corroded and has insulating effect, simultaneously, this separator 102 also can prevent in the insulating barrier 103 extrusion molding processes and conductor 101 adhesion mutually, thereby influences the warp resistance performance of cable; Also has nylon rope obturator 70 between each lead 10 of cable core, nylon rope obturator 70 is convenient to stranded moulding between the lead 10, in use simultaneously, and when cable is subjected to big pulling force, can strengthen the tensile strength of cable, prevent that the lead of cable inside from pullling fracture or being damaged; Described reinforced layer 30 adopts the filament braiding to form, and further strengthens the antitorque commentaries on classics of cable; The sheath 40 of polyolefin material has that relative density is little, chemical proofing, water-tolerant, also has characteristics such as excellent mechanical intensity, electrical insulating property, plays the effect of good protection inner lead; The armour 50 that becomes with metal wire knitted at sheath 40 external application nylon have intensity height, flexibility good etc. characteristic, guarantee the tensile property and the softness of cable; Thermoplastic elastomer has excellent premium properties such as ageing resistance, ozone resistants and weatherability, and hot strength is good, and therefore, outer jacket 60 these used for wind power generation cable inside of protection are not subjected to environmental attack and weathering, make this cable have good weatherability.

The utility model used for wind power generation cable, have some conductors 101, the stranded formation lead core of described conductor 101 set, described lead core coats layer of non-woven fabric separator 102 outward, the insulating barrier 103 of described separator 102 outer extrusion molding one deck silicon rubber materials constitutes lead 10, the stranded formation cable core of described lead 10 set, the covering 20 of one deck halogen-free flameproof material is covered in the outsourcing of described cable core, the described covering 20 outer reinforced layers 30 that are woven with the braiding of one deck filament, the described reinforced layer 30 outer sheaths 40 that extrude one deck polyolefin material, described sheath 40 outer braiding one deck armours 50, described armour 50 outer extrusion molding one deck outer jackets 60; Nonwoven fabrics separator 102 prevents that conductor 101 is corroded and insulate; Silicone rubber insulation layer 103 has higher heat resistance and excellent cold tolerance, also has excellent electric insulation; Armour 50 intensity height, softness are good; Outer jacket 60 also has good weatherability; Therefore, when this cable has better transmission performance, also have good temperature resistance energy, antitorque commentaries on classics and pull resistance, long service life are arranged.

Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1. used for wind power generation cable, it is characterized in that: comprise some conductors, described conductor is gathered stranded formation lead core, described lead core coats the separator of layer of non-woven fabric outward, the insulating barrier of the outer extrusion molding one deck silicon rubber of described separator constitutes lead, described lead is gathered stranded formation cable core, the covering of one deck halogen-free flameproof is covered in the outsourcing of described cable core, described covering is woven with the reinforced layer of one deck filament braiding outward, described reinforced layer extrudes the polyolefinic sheath of one deck outward, described sheath weaves one deck armour outward, the outer jacket of the outer extrusion molding one deck plasticity body of described armour.

2. used for wind power generation cable as claimed in claim 1 is characterized in that: have the nylon rope obturator between each lead of described cable core.

3. used for wind power generation cable as claimed in claim 1 is characterized in that: described conductor is soft copper silk or tinned copper wire.

4. used for wind power generation cable as claimed in claim 1 is characterized in that: described armour is formed by nylon and metal wire knitted.