CN104733094A - Flexible cable for wind power generation - Google Patents
Flexible cable for wind power generation Download PDFInfo
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- CN104733094A CN104733094A CN201510114946.5A CN201510114946A CN104733094A CN 104733094 A CN104733094 A CN 104733094A CN 201510114946 A CN201510114946 A CN 201510114946A CN 104733094 A CN104733094 A CN 104733094A
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Abstract
The invention provides a flexible cable for wind power generation, and belongs to the technical field of electric wires and cables. The flexible cable comprises a cable core and a shielding layer, an insulation layer and an outer protective sleeve which are sequentially located outside the cable core; the cable core comprises a set of wires arranged in the circumferential direction and an inner protective sleeve covering the set of the wires in an extruding mode, and the shielding layer is located outside the inner protective sleeve. The flexible cable is characterized in that the flexible cable further comprises a center strengthening mechanism, and the set of wires are arranged around the center strengthening mechanism. The center strengthening mechanism is added in the structural system of the cable core, therefore, the capacity of torsion resistance, deformation resistance and tension resistance can be significantly improved, and good flexibility is achieved; the inner protective sleeve and the outer protective sleeve both adopt a modified polyether urethane layer, and therefore the excellent effects of ultraviolet light resistance, acid and alkali resistance, oil resistance, salt mist resistance and wind-sand invasion resistance enable the cable to adapt to the harsh usage environment of desert and sea areas or high and cold zones.
Description
Technical field
The invention belongs to technical field of electric wires and cables, be specifically related to a kind of flexible cable used for wind power generation.
Background technology
Along with the quick raising of human being's production power, energy resource consumption also increases day by day, area surroundings and global environment is caused sharply to worsen therefrom, such as, the earth environment factor that a series of mankind of impact such as the global warming caused by greenhouse effect, iceberg, Melting Glaciers: and sea-level rise depend on for existence becomes the focus of attention of international community.As everyone knows, the discharge of greenhouse gas mainly consumes caused by the mineral matter energy of such as coal, oil and natural gas etc. in a large number because of the mankind, and therefore, various countries, while developing the economy, become saving and making full use of the energy problem first taken in.
Energy-saving and emission-reduction, protection of the environment has become a global revolution, so, as inexhaustible and there is the natural energy resources of clean environmental protection meaning and wind energy more and more for the mankind think highly of.According to related data prediction, to the year two thousand twenty, China's wind-powered electricity generation (wind power generation, as follows) total installed capacity scale can reach 12,000 ten thousand KW, estimates to reach 50,000 ten thousand KW to the year two thousand fifty.Sayed as energy expert: " world of 21 century is the wind-powered electricity generation world ", it can thus be appreciated that wind-powered electricity generation will bring hope for mankind's last solution waste problem of the energy of determining as green energy resource.
Cable used for wind power generation is the indispensable carrier of wind-driven generator electric energy transmitting, enrich but the comparatively severe area of environmental condition because wind power facility is mostly arranged on wind resource, thus require that this type of cable possesses long-term safety reliability of operation, be embodied in: excellent lower temperature resistance, flexibility, anti-torsion and uviolresistance, etc.
The technical information about cable for wind power generation is no lack of in disclosed Chinese patent literature, slightly with " 2MW low temperature torsion used for wind power generation flexible cable ", " a kind of flexible control cable used for wind power generation " of CN202736553U introduction and " a kind of flexible anti-torque control cable for wind power generation equipment " of CN201956086U disclosure that " flexible flame-retardant cable for wind power generation " as Authorization Notice No. CN201449793U recommendation that exemplify, CN202183242U provide, etc.Although these art solutions being not limited to exemplify respectively have corresponding technology strong point, but because its structure is outward successively formed inner sheath, screen and oversheath for core at conductor with the conductor (coated conductor) of or more, thus when cable rotates with the rotatable parts of wind-driven generator under state under arms and reverses, conductor can be subjected to displacement and metaboly, even cause the stranded copper wire fracture forming conductor, affect the useful life of cable, and the resistance to tension of cable is relatively fragile.
For above-mentioned prior art, the applicant has done positive and useful design, define technical scheme described below, and carried out analogue test and test in the test center of the applicant taking under secrecy provision, result proves practicable.
Summary of the invention
Top priority of the present invention is that providing a kind of contributes to significantly improving anti-torsion, resistance to deformation and resistance to tension and the flexible cable used for wind power generation of softness.
Another task of the present invention is to provide a kind of and is conducive to significantly strengthening the invasion and attack of uvioresistant, acid and alkali-resistance, oil resistant, salt spray resistance and resistance to dust storm and uses the flexible cable used for wind power generation of harsh environment for use adapting to desert, marine site, severe cold areas.
For having embodied top priority of the present invention, technical scheme provided by the invention is: a kind of flexible cable used for wind power generation, comprise cable core and be positioned at screen, separator and the oversheath outside cable core successively, cable core comprises one group of wire of circumferentially direction arrangement and squeezes the inner sheath overlayed on outside one group of wire, described screen is positioned at outside inner sheath, be characterised in that: described cable core also includes a center reinforcing mechanisms, one group of described wire arranges around the surrounding of this center reinforcing mechanisms.
In a specific embodiment of the present invention, described center reinforcing mechanisms comprises fills out core and reinforcing fibre bundle, and reinforcing fibre bundle is positioned to be filled out in-core and closely contains by filling out core, wherein: the wall thickness filling out core is 0.1-1 ㎜; One group of described wire is around the surrounding arrangement of filling out core and adjacent wires forms the relation of tangent contact each other, and described core of filling out is thermoplastic elastic body.
In another specific embodiment of the present invention, one group of described wire respectively comprises by the stranded conductor of the soft copper wire of complex root and squeezes the insulating layer of conductor overlayed on outside conductor, polyether thermoplastic's polyurethane of this insulating layer of conductor to be thickness be 0.1-1 ㎜.
In another specific embodiment of the present invention, described soft copper wire is bare copper wire or tinned copper wire.
In another specific embodiment of the present invention, described bare copper wire or the diameter of tinned copper wire are 0.05-0.5 ㎜.
Also have in a specific embodiment of the present invention, described reinforcing fibre bundle is aramid filament fibre bundle.
More of the present invention and in a specific embodiment, described screen is tinned copper wire braid shielded net.
In an of the present invention and then specific embodiment, described separator is barrier paper, nonwoven fabrics, polyester film or polytetrafluoroethylene film.
For having embodied another task of the present invention, technical scheme provided by the invention has been: described inner sheath and oversheath are the EU layer of modification.
Of the present invention again more and in a specific embodiment, the thickness of described inner sheath is 0.3-2 ㎜, the thickness of described oversheath is 0.7-2 ㎜.
Technical scheme provided by the invention, owing to adding center reinforcing mechanisms to the structural system of cable core, thus can significantly improve anti-torsion, resistance to deformation and resistance to tension, and has good flexibility; Because inner sheath and oversheath all have employed the EU layer of modification, thus there is the effect of excellent uvioresistant, acid and alkali-resistance, oil resistant, salt spray resistance and resistance to dust storm invasion and attack, cable can be made to adapt to the harsh environment for use of desert, marine site or severe cold areas.
Accompanying drawing explanation
Fig. 1 is cross sectional representation of the present invention.
Embodiment
Embodiment 1:
Refer to Fig. 1, the cable core 1 giving the structural system of the present invention's flexible cable used for wind power generation and the screen 2, separator 3 and the oversheath 4 that are positioned at successively outside cable core 1, cable core 1 comprises one group of wire 11 of circumferentially direction arrangement and squeezes the inner sheath 12 overlayed on outside one group of wire 11, and aforesaid screen 2 is positioned at outside inner sheath 12.
Technical essential as technical scheme provided by the invention: aforesaid cable core 1 also includes a center reinforcing mechanisms 13, aforesaid one group of wire 11 arranges around the surrounding of this center reinforcing mechanisms 13.
As shown in Figure 1, aforesaid center reinforcing mechanisms 13 comprises fills out core 131 and reinforcing fibre bundle 132, and reinforcing fibre bundle 132 is positioned to be filled out core 131 and closely contains by filling out core 131, wherein: the wall thickness filling out core 131 is 0.5 ㎜; Aforesaid one group of wire 11 is around the surrounding arrangement of filling out core 131 and adjacent wires 11 forms the relation of tangent contact each other.Owing to filling out core 131 for thermoplastic elastic body material; thus whole center reinforcing mechanisms 13 is essentially solid bars; solid bars has excellent elasticity; when cable is reversed or be subject to external force; solid bars can reduce; otherwise then restore to the original state, thus embodied the ultimate attainment protective effect to cable core.
Aforesaid one group of wire 11 respectively comprises by the stranded conductor 111 of the soft copper wire of complex root and squeezes the insulating layer of conductor 112 overlayed on outside conductor 111, this insulating layer of conductor 112 for thickness be polyether thermoplastic's polyurethane of 0.6 ㎜.
Preferably, aforesaid soft copper wire is the bare copper wire of diameter 0.05 ㎜, and aforesaid reinforcing fibre bundle 132 is aramid filament fibre bundle; Aforesaid screen 2 is tinned copper wire braid shielded net; Aforesaid separator 3 is nonwoven fabrics; The polyether-type that aforesaid inner sheath 12 and oversheath 4 are modification is poly-by ester layer, and the thickness of inner sheath 12 is 0.3 ㎜, and the thickness of oversheath 4 is 1 ㎜.。
The EU layer of aforesaid modification adds in as the polyurethane of matrix to have ultraviolet (UV) resistant agent and ageing-resistant EU.
Embodiment 2:
Only change the wall thickness filling out core 131 into 1 ㎜; Change soft copper wire into tinned copper wire that diameter is 0.25 ㎜; Change the thickness of insulating layer of conductor 112 into 1 ㎜; Change separator 3 into polyester film; Change the thickness of inner sheath 12 into 1.6 ㎜ and change the thickness of oversheath 4 into 2 ㎜.All the other are all with the description to embodiment 1.
Embodiment 3:
Only change the wall thickness filling out core 131 into 0.55 ㎜; Change the diameter of soft copper wire into 0.5 ㎜; Change the thickness of insulating layer of conductor 112 into 0.15 ㎜; Use separator 3 instead polytetrafluoroethylene film; Change the thickness of inner sheath 12 into 0.5 ㎜, change the thickness of oversheath 4 into 0.8 ㎜.All the other are all with the description to embodiment 1.
Claims (10)
1. a flexible cable used for wind power generation, comprise cable core (1) and be positioned at cable core (1) screen outward (2) successively, separator (3) and oversheath (4), cable core (1) comprises one group of wire (11) of circumferentially direction arrangement and crowdedly overlays on one group of wire (11) inner sheath outward (12), described screen (2) is positioned at inner sheath (12) outward, it is characterized in that: described cable core (1) also includes a center reinforcing mechanisms (13), one group of described wire (11) arranges around the surrounding of this center reinforcing mechanisms (13).
2. flexible cable used for wind power generation according to claim 1, it is characterized in that described center reinforcing mechanisms (13) comprises and fill out core (131) and reinforcing fibre bundle (132), reinforcing fibre bundle (132) is positioned to be filled out core (131) and closely contains by filling out core (131), wherein: the wall thickness filling out core (131) is 0.1-1 ㎜; One group of described wire (11) is around the surrounding arrangement of filling out core (131) and adjacent wires (11) forms the relation of tangent contact each other, and described core (131) of filling out is thermoplastic elastic body.
3. flexible cable used for wind power generation according to claim 1 and 2, it is characterized in that one group of described wire (11) respectively comprises by the stranded conductor (111) of the soft copper wire of complex root and crowdedly overlays on conductor (111) insulating layer of conductor outward (112), this insulating layer of conductor (112) for thickness be polyether thermoplastic's polyurethane of 0.1-1 ㎜.
4. flexible cable used for wind power generation according to claim 3, is characterized in that described soft copper wire is bare copper wire or tinned copper wire.
5. flexible cable used for wind power generation according to claim 4, is characterized in that the diameter of described bare copper wire or tinned copper wire is 0.05-0.5 ㎜.
6. flexible cable used for wind power generation according to claim 2, is characterized in that described reinforcing fibre bundle (132) is aramid filament fibre bundle.
7. flexible cable used for wind power generation according to claim 1, is characterized in that described screen (2) is for tinned copper wire braid shielded net.
8. flexible cable used for wind power generation according to claim 1, is characterized in that described separator (3) is barrier paper, nonwoven fabrics, polyester film or polytetrafluoroethylene film.
9. flexible cable used for wind power generation according to claim 1, is characterized in that described inner sheath (12) and oversheath (4) are the EU layer of modification.
10. the flexible cable used for wind power generation according to claim 1 or 9, it is characterized in that the thickness of described inner sheath (12) is 0.3-2 ㎜, the thickness of described oversheath (4) is 0.7-2 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114946.5A CN104733094A (en) | 2015-03-17 | 2015-03-17 | Flexible cable for wind power generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114946.5A CN104733094A (en) | 2015-03-17 | 2015-03-17 | Flexible cable for wind power generation |
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| CN104733094A true CN104733094A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510114946.5A Pending CN104733094A (en) | 2015-03-17 | 2015-03-17 | Flexible cable for wind power generation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085363A (en) * | 2019-04-26 | 2019-08-02 | 南安市傅泉机械科技有限公司 | A kind of sand-proof cable |
| CN110120283A (en) * | 2019-05-09 | 2019-08-13 | 江苏亨通线缆科技有限公司 | A kind of drag chain cable and cable preparation method |
| CN110197738A (en) * | 2019-05-07 | 2019-09-03 | 泰州市泰能铜制品有限公司 | A kind of hollow flexible water-cooled cable |
| CN110415881A (en) * | 2019-08-21 | 2019-11-05 | 圣安电缆有限公司 | The multi-functional compound island power cable of one kind and its manufacturing process |
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| JP2007035454A (en) * | 2005-07-27 | 2007-02-08 | Toshiba Teli Corp | Manufacturing method of vacuum-proof complex cable and vacuum-proof complex cable |
| CN201210422Y (en) * | 2008-05-27 | 2009-03-18 | 特变电工(德阳)电缆股份有限公司 | Environment protective flexible electric cable special for coldness durable grease-proof torsion resistant wind power generator |
| CN101950614A (en) * | 2010-09-30 | 2011-01-19 | 中利科技集团股份有限公司 | Flexible tensile wind energy cable |
| CN102097167A (en) * | 2010-11-25 | 2011-06-15 | 苏州科宝光电科技有限公司 | Anti-torsion signal control cable for wind power generating equipment |
| CN204423947U (en) * | 2015-03-17 | 2015-06-24 | 苏州科宝光电科技有限公司 | Flexible cable used for wind power generation |
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2015
- 2015-03-17 CN CN201510114946.5A patent/CN104733094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007035454A (en) * | 2005-07-27 | 2007-02-08 | Toshiba Teli Corp | Manufacturing method of vacuum-proof complex cable and vacuum-proof complex cable |
| CN201210422Y (en) * | 2008-05-27 | 2009-03-18 | 特变电工(德阳)电缆股份有限公司 | Environment protective flexible electric cable special for coldness durable grease-proof torsion resistant wind power generator |
| CN101950614A (en) * | 2010-09-30 | 2011-01-19 | 中利科技集团股份有限公司 | Flexible tensile wind energy cable |
| CN102097167A (en) * | 2010-11-25 | 2011-06-15 | 苏州科宝光电科技有限公司 | Anti-torsion signal control cable for wind power generating equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085363A (en) * | 2019-04-26 | 2019-08-02 | 南安市傅泉机械科技有限公司 | A kind of sand-proof cable |
| CN110197738A (en) * | 2019-05-07 | 2019-09-03 | 泰州市泰能铜制品有限公司 | A kind of hollow flexible water-cooled cable |
| CN110120283A (en) * | 2019-05-09 | 2019-08-13 | 江苏亨通线缆科技有限公司 | A kind of drag chain cable and cable preparation method |
| CN110120283B (en) * | 2019-05-09 | 2021-04-06 | 江苏亨通线缆科技有限公司 | Towline cable and cable preparation method |
| CN110415881A (en) * | 2019-08-21 | 2019-11-05 | 圣安电缆有限公司 | The multi-functional compound island power cable of one kind and its manufacturing process |
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