CN104051074A - Wind power generation cable and production technology thereof - Google Patents
Wind power generation cable and production technology thereof Download PDFInfo
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- CN104051074A CN104051074A CN201410207083.1A CN201410207083A CN104051074A CN 104051074 A CN104051074 A CN 104051074A CN 201410207083 A CN201410207083 A CN 201410207083A CN 104051074 A CN104051074 A CN 104051074A
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Abstract
The invention discloses a wind power generation cable and a production technology of the wind power generation cable. The production technology comprises the following steps that (1) it is determined that the cable structurally and sequentially comprises a conductor, wrapping tape, an insulation layer and a sheath from inside to outside; (2) the conductor is determined with the combination of an American standard and a national standard; (3) the conductor is wrapped by polyester-type non-woven fabric, wherein the polyester-type non-woven fabric serves as the wrapping tape, and the lapping and covering rate ranges from 25% to 35%; (4) the insulation layer and the sheath are formed outside the wrapping tape in an extruded mode through a continuous curing double-layer co-extruding technology, wherein EPCV is adopted for the insulation layer and CPE is adopted for the sheath. According to the novel mode, the American standard is combined with the national standard; according to the conductor produced through the production technology, the diameter of a monofilament, the overall sectional area of the conductor and the conductor direct-current resistance completely satisfy the UL44 standard, the difficulty that the conductor size of the corresponding American standard is generally replaced with the conductor size of a national standard by a domestic enterprise is overcome, a basic calculation thought is given, and the size range and the arrangement structure of wiredrawing and bundling mold matching are given.
Description
Technical field
Patent of the present invention relates to a kind of wind electric power generation cable and production technology.
Background technology
Wind energy is a kind of clean regenerative resource, be also at present on the largest scale in numerous new forms of energy, technology is the most ripe, the power generation mode that has business development prospect most, according to open source information demonstration China mainland and inshore, can utilize nearly 1,000,000,000 kW of wind energy resources, China < < regenerative resource Long-and Medium-term Development planning > > points out, the year two thousand twenty China wind-powered electricity generation total installation of generating capacity reaches 3,000 ten thousand kW, and 2013-2020 is still the gold period of being well worth doing.Wind electric power generation cable has control cables in wind-power engine room and tower cylinder, signal cable, warp resistance power cable etc., because of wind field environment severe, and power cable swings and distortion with impeller, so cable for wind power generation General Requirements is higher, as require low temperature resistant, oil resistant, warp resistance, weather, UV resistant, acid and alkali-resistance etc.The domestic majority of wind electric power generation cable is with reference to industry standard TICW01, at north America region, need to meet the requirement of UL44, conductor in UL44, insulation, jacket structure and size and IEC, GB have larger difference, the selection of unit as long-pending in measurement cross-sectional area of conductor, D.C. resistance, insulating sleeve etc.
Summary of the invention
First object of the present invention is to provide a kind of production technology of wind electric power generation cable.
The technical scheme that realizes first object of the present invention is a kind of production technology of wind electric power generation cable, comprises the following steps:
Step 1: determine that the construction of cable is followed successively by conductor, twining package tape, insulating barrier and sheath from the inside to the outside;
Step 2: determine conductor in conjunction with American Standard and GB: according to American Standard UL44 standard, the kcmil number of its regulation is converted into mm
2, be decided to be Xmm
2; Then in GB, select immediate mm with it
2, be decided to be Ymm
2, according to GB, obtain Ymm
2lower conductor wire diameter of single wires and radical range of choice; According to this kcmil stipulating in UL44 standard, count 20 ℃ of D.C. resistance Z under conductor again, by resistance formula R=ρ L/S, by aforementioned range, select different monofilament and increase or reduce resistance value that this monofilament radical makes to calculate be Z ±; At this, ρ is the resistivity of the monofilament of selection, and L is 1000m, the monofilament total sectional area of S for selecting;
Step 3: adopt polyester-type nonwoven fabrics wrapped outside at conductor, as twining package tape, its rate of putting up is 25%-35%;
Step 4: the company's of employing sulphur double-layer coextrusion technique is extruded insulating barrier and sheath outward at twining package tape; Insulating barrier adopts EPCV; Sheath adopts CPE.
The thickness of the twining package tape in described step 3 is 0.1-0.2mm, and width is 30-40mm, and longitudinal lapping is outside at conductor.
In company's sulphur double-layer coextrusion technique of described step 4, according to the Mooney viscosity design extrusion temperature of insulating barrier and two kinds of materials of sheath, two rubber extruding machine body temperature are all set between 240 ℃～450 ℃, melt pressure is controlled at below 450bar, extrude glue even, smooth, adopt online lateral deviation to move the eccentric situation of detection streamer, speed of production is controlled between 7.5～8.8m/min.
The insulating barrier of described step 4 and the thickness of sheath are respectively 2.5mm and 1.7mm.
In described step 2, preparation meets the cable of UL44 standard 500kcmil; Conductor is selected copper conductor; 500kcmil equals 253mm
2, 20 ℃ of D.C. resistances are 0.0709 Ω/km, 240mm in GB
2the most approaching with it, according to 20 ℃ of anti-body string diameter and radicals of deriving of D.C. resistance, determine that the copper wire monofilament synnema that this conductor is 0.495mm by 22 diameters, 61 bursts of equidirectional multiple strands of synnema form.
Monofilament in described step 2 in conductor adopts multiple drawing machine to draw, and outlet mold arrangement scope is 0.492-0.50mm; Synnema adopts bull strand winder bundle strand, and 22 monofilament adopt 8+14 or 1+7+14 to arrange, and inlet wire mould configuration scope is between 2.62-2.75mm, and after synnema, external diameter is 2.60-2.65mm, and after bundle strand, monofilament elongation is 10%-15%; Multiple strand adopts 630 type frame winches stranded, and 61 strands of synnemas structure that tangles is again 1+6+12+18+24, and outermost layer pitch control range is 180-220mm.
In described step 2, preparation meets the cable of UL44 standard 600kcmil; Conductor aluminium conductor; 600kcmil equals 304mm
2, 20 ℃ of D.C. resistances are 0.0976 Ω/km, immediate with it in GB is 240mm
2, according to 20 ℃ of anti-body string diameter and radicals of deriving of D.C. resistance, determine adopting 2 class conductors, it is stranded that 60 monofilament are pressed 1+6+12+18+23 structural arrangement; Adopt L2 or above aluminium bar to be extruded into the aluminium conductor of 5.0-6.0mm, intensity is 70-100Mpa, then with after this aluminium bar wire drawing, filament strength being controlled to 120-160Mpa.
Second object of the present invention is to provide a kind of wind electric power generation cable.
The technical scheme that realizes second object of the present invention is: a kind of wind electric power generation cable, and interior to being followed successively by conductor, twining package tape, insulating barrier and sheath outward; The copper wire monofilament synnema that described conductor is 0.495mm by 22 diameters, 61 bursts of equidirectional multiple strands of synnema form; The thickness of described twining package tape is 0.1-0.2mm, and width is 30-40mm, and longitudinal lapping is outside at conductor; The thickness of described insulating barrier and sheath is respectively 2.5mm and 1.7mm.Or interior to being followed successively by conductor, twining package tape, insulating barrier and sheath outward; Described conductor 2 class aluminium conductors, it is stranded that 60 monofilament are pressed 1+6+12+18+23 structural arrangement; The thickness of described twining package tape is 0.1-0.2mm, and width is 30-40mm, and longitudinal lapping is outside at conductor; The thickness of described insulating barrier and sheath is respectively 2.5mm and 1.7mm.
Adopt technique scheme, patent of the present invention has following beneficial effect: (1) the present invention adopts the mode of innovation, American Standard is combined with GB, cable conductor filament diameter, conductor global sections by explained hereafter of the present invention amasss, conductor DC resistance meets UL44 standard completely, overcome domestic enterprise and conventionally by GB conductor size, substituted the difficulty of corresponding American Standard, provide basic calculating thinking, provided size range and arrangement architecture that wire drawing, synnema are joined mould simultaneously.(2) temperature of insulation of the present invention and sheath double-layer coextrusion, pressure, Speed Setting scope can further guarantee that the cable that the present invention produces can meet American Standard standard.
Accompanying drawing explanation
For the content of patent of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is construction of cable schematic diagram of the present invention.
Attached number in the figure is:
Conductor 1, twining package tape 2, insulation 3, sheath 4.
Embodiment
(embodiment 1)
See Fig. 1, a kind of wind electric power generation cable of the present embodiment is followed successively by conductor 1, twining package tape 2, insulating barrier 3 and sheath 4 from the inside to the outside.
Its production technology comprises the following steps:
Step 1: determine that the construction of cable is followed successively by conductor 1, twining package tape 2, insulating barrier 3 and sheath 4 from the inside to the outside;
Step 2: determine conductor in conjunction with American Standard and GB: according to American Standard UL44 standard, the kcmil number of its regulation is converted into mm
2, be decided to be Xmm
2; Then in GB, select immediate mm with it
2, be decided to be Ymm
2, according to GB, obtain Ymm
2lower conductor wire diameter of single wires and radical range of choice; According to this kcmil stipulating in UL44 standard, count 20 ℃ of D.C. resistance Z under conductor again, by resistance formula R=ρ L/S, by aforementioned range, select different monofilament and increase or reduce resistance value that this monofilament radical makes to calculate be Z ±; At this, ρ is the resistivity of the monofilament of selection, and L is 1000m, the monofilament total sectional area of S for selecting;
Step 3: adopt polyester-type nonwoven fabrics wrapped in conductor 1 outside, as twining package tape 2, its rate of putting up is 25%-35%; The thickness of twining package tape 2 is 0.1-0.2mm, and width is 30-40mm, and longitudinal lapping is in conductor 1 outside; Adopt this twining package tape can effectively stop Insulation Material to be infiltrated among conductor, width, thickness are suitable.
Step 4: the company's of employing sulphur double-layer coextrusion technique is extruded insulating barrier 3 and sheath 4 outside twining package tape 2; Insulating barrier 3 adopts EPCV; Sheath 4 adopts CPE; According to the Mooney viscosity design extrusion temperature of insulating barrier 3 and 4 two kinds of materials of sheath, two rubber extruding machine body temperature are all set between 240 ℃～450 ℃, melt pressure is controlled at below 450bar, extrude glue even, smooth, adopt online lateral deviation to move the eccentric situation of detection streamer, speed of production is controlled between 7.5～8.8m/min; Production technology according to a kind of American Standard wind electric power generation cable of claim 3, is characterized in that: the insulating barrier 3 of step 4 and the thickness of sheath 4 are respectively 2.5mm and 1.7mm.
Below circular non-aluminium cable the determining as example explanation conductor that press of the circular non-compacting pressing copper core cable of the 500kcmil2000V of specifically take and 600kcmil2000V.
Such as preparation meets the cable of UL44 standard 500kcmil; Conductor 1 is selected copper conductor; 500kcmil equals 253mm
2, 20 ℃ of D.C. resistances are 0.0709 Ω/km, 240mm in GB
2the most approaching with it; Due to 253mm
2be greater than 240mm
2, therefore need to increase filament diameter or radical, according to the formula of resistance, adjust the quantity of monofilament or monofilament, make the regulation in resistor satisfied standard, determine that thus the copper wire monofilament synnema that conductor 1 is 0.495mm by 22 diameters, 61 bursts of equidirectional multiple strands of synnema form; Monofilament in conductor 1 adopts multiple drawing machine to draw, and outlet mold arrangement scope is 0.492-0.50mm; Synnema adopts bull strand winder bundle strand, and 22 monofilament adopt 8+14 or 1+7+14 to arrange, and inlet wire mould configuration scope is between 2.62-2.75mm, and after synnema, external diameter is 2.60-2.65mm, and after bundle strand, monofilament elongation is 10%-15%; Multiple strand adopts 630 type frame winches stranded, and 61 strands of synnemas structure that tangles is again 1+6+12+18+24, and outermost layer pitch control range is 180-220mm.
Preparation meets the cable of UL44 standard 600kcmil for another example; Conductor 1 aluminium conductor; 600kcmil equals 304mm
2, 20 ℃ of D.C. resistances are 0.0976 Ω/km, immediate with it in GB is 240mm
2, according to 20 ℃ of anti-body string diameter and radicals of deriving of D.C. resistance, determine adopting 2 class conductors, it is stranded that 60 monofilament are pressed 1+6+12+18+23 structural arrangement; Adopt L2 or above aluminium bar to be extruded into the aluminium conductor of 5.0-6.0mm, intensity is 70-100Mpa, then with after this aluminium bar wire drawing, filament strength being controlled to 120-160Mpa.
Above-described specific embodiment; the object of patent of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above a kind of American Standard wind electric power generation cable and production technology are only specific embodiments of the invention representative; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a production technology for wind electric power generation cable, is characterized in that comprising the following steps:
Step 1: determine that the construction of cable is followed successively by conductor (1), twining package tape (2), insulating barrier (3) and sheath (4) from the inside to the outside;
Step 2: determine conductor in conjunction with American Standard and GB: according to American Standard UL44 standard, the kcmil number of its regulation is converted into mm
2, be decided to be Xmm
2; Then in GB, select immediate mm with it
2, be decided to be Ymm
2, according to GB, obtain Ymm
2lower conductor wire diameter of single wires and radical range of choice; According to this kcmil stipulating in UL44 standard, count 20 ℃ of D.C. resistance Z under conductor again, by resistance formula R=ρ L/S, by selecting different monofilament and increase or reduce this monofilament radical in aforementioned range, make the corresponding resistance value calculating, ρ is the resistivity of the monofilament of selection, L is 1000m, the monofilament total sectional area of S for selecting;
Step 3: adopt polyester-type nonwoven fabrics wrapped in conductor (1) outside, as twining package tape (2), its rate of putting up is 25%-35%;
Step 4: the company's of employing sulphur double-layer coextrusion technique is extruded insulating barrier (3) and sheath (4) outside twining package tape (2); Insulating barrier (3) adopts EPCV; Sheath (4) adopts CPE.
2. the production technology of a kind of wind electric power generation cable according to claim 1, is characterized in that: the thickness of the twining package tape in described step 3 (2) is 0.1-0.2mm, and width is 30-40mm, and longitudinal lapping is in conductor (1) outside.
3. the production technology of a kind of wind electric power generation cable according to claim 1, it is characterized in that: in company's sulphur double-layer coextrusion technique of described step 4, according to the Mooney viscosity design extrusion temperature of insulating barrier (3) and (4) two kinds of materials of sheath, two rubber extruding machine body temperature are between 240 ℃～450 ℃, extrude glue even, smooth, adopt online lateral deviation to move the eccentric situation of detection streamer, speed of production is controlled between 7.5～8.8m/min, and steam pressure is set as linear velocity+1kg.
4. the production technology of a kind of wind electric power generation cable according to claim 3, is characterized in that: the thickness of the insulating barrier of described step 4 (3) and sheath (4) is respectively 2.5mm and 1.7mm.
5. according to the production technology of a kind of wind electric power generation cable one of claim 1 to 4 Suo Shu, it is characterized in that: in described step 2, preparation meets the cable of UL44 standard 500kcmil; Conductor (1) is selected copper conductor; 500kcmil equals 253mm
2, 20 ℃ of D.C. resistances are 0.0709 Ω/km, 240mm in GB
2the most approaching with it, according to 20 ℃ of anti-body string diameter and radicals of deriving of D.C. resistance, determine that the copper wire monofilament synnema that this conductor (1) is 0.495mm by 22 diameters, 61 bursts of equidirectional multiple strands of synnema form.
6. the production technology of a kind of wind electric power generation cable according to claim 5, is characterized in that: the monofilament in conductor in described step 2 (1) adopts multiple drawing machine to draw, and outlet mold arrangement scope is 0.492-0.50mm; Synnema adopts bull strand winder bundle strand, and 22 monofilament adopt 8+14 or 1+7+14 to arrange, and inlet wire mould configuration scope is between 2.62-2.75mm, and after synnema, external diameter is 2.60-2.65mm, and after bundle strand, monofilament elongation is 10%-15%; Multiple strand adopts 630 type frame winches stranded, and 61 strands of synnemas structure that tangles is again 1+6+12+18+24, and outermost layer pitch control range is 180-220mm.
7. according to according to the production technology of a kind of wind electric power generation cable one of claim 1 to 4 Suo Shu, it is characterized in that: in described step 2, preparation meets the cable of UL44 standard 600kcmil; Conductor (1) aluminium conductor; 600kcmil equals 304mm
2, 20 ℃ of D.C. resistances are 0.0976 Ω/km, immediate with it in GB is 240mm
2, according to 20 ℃ of anti-body string diameter and radicals of deriving of D.C. resistance, determine adopting 2 class conductors, it is stranded that 60 monofilament are pressed 1+6+12+18+23 structural arrangement; Adopt L2 or above aluminium bar to be extruded into the aluminium conductor of 5.0-6.0mm, intensity is 70-100Mpa, then with after this aluminium bar wire drawing, filament strength being controlled to 120-160Mpa.
8. a kind of wind electric power generation cable according to claim 6, is characterized in that: interior to being followed successively by conductor (1), twining package tape (2), insulating barrier (3) and sheath (4) outward; The copper wire monofilament synnema that described conductor (1) is 0.495mm by 22 diameters, 61 bursts of equidirectional multiple strands of synnema form; The thickness of described twining package tape (2) is 0.1-0.2mm, and width is 30-40mm, and longitudinal lapping is in conductor (1) outside; The thickness of described insulating barrier (3) and sheath (4) is respectively 2.5mm and 1.7mm.
9. a kind of wind electric power generation cable according to claim 7, is characterized in that: interior to being followed successively by conductor (1), twining package tape (2), insulating barrier (3) and sheath (4) outward; Described conductor (1) 2 class aluminium conductor, it is stranded that 60 monofilament are pressed 1+6+12+18+23 structural arrangement; The thickness of described twining package tape (2) is 0.1-0.2mm, and width is 30-40mm, and longitudinal lapping is in conductor (1) outside; The thickness of described insulating barrier (3) and sheath (4) is respectively 2.5mm and 1.7mm.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105295301A (en) * | 2015-10-21 | 2016-02-03 | 安徽亚南电缆厂 | Producing method for high-temperature-resistant and ageing-resistant cable |
| CN105719773A (en) * | 2016-02-04 | 2016-06-29 | 远东电缆有限公司 | Smart energy large-section locomotive electric wire production process |
| CN106847388A (en) * | 2017-03-23 | 2017-06-13 | 河北华通线缆集团股份有限公司 | A kind of mixed conductor environment-friendly type wind energy cable and production technology |
| CN110459344A (en) * | 2019-09-10 | 2019-11-15 | 远东电缆有限公司 | A kind of reel control cable and preparation method thereof |
| CN110781563A (en) * | 2019-09-25 | 2020-02-11 | 重庆泰山电缆有限公司 | Cable core section design method, conductor assembly, cable core and cable |
| WO2021072834A1 (en) * | 2019-10-18 | 2021-04-22 | 江苏亨通电力电缆有限公司 | Fan bridge frame cable |
| CN112750558A (en) * | 2019-10-30 | 2021-05-04 | 广州番禺电缆集团有限公司 | New energy automobile anti-interference cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105295301A (en) * | 2015-10-21 | 2016-02-03 | 安徽亚南电缆厂 | Producing method for high-temperature-resistant and ageing-resistant cable |
| CN105719773A (en) * | 2016-02-04 | 2016-06-29 | 远东电缆有限公司 | Smart energy large-section locomotive electric wire production process |
| CN106847388A (en) * | 2017-03-23 | 2017-06-13 | 河北华通线缆集团股份有限公司 | A kind of mixed conductor environment-friendly type wind energy cable and production technology |
| CN110459344A (en) * | 2019-09-10 | 2019-11-15 | 远东电缆有限公司 | A kind of reel control cable and preparation method thereof |
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| CN110781563B (en) * | 2019-09-25 | 2023-03-31 | 重庆泰山电缆有限公司 | Cable core section design method, conductor assembly, cable core and cable |
| WO2021072834A1 (en) * | 2019-10-18 | 2021-04-22 | 江苏亨通电力电缆有限公司 | Fan bridge frame cable |
| CN112750558A (en) * | 2019-10-30 | 2021-05-04 | 广州番禺电缆集团有限公司 | New energy automobile anti-interference cable |
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| CN104051074B (en) | 2017-01-04 |
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