CN201600934U - Strengthened core expanded diameter conductor - Google Patents
Strengthened core expanded diameter conductor Download PDFInfo
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- CN201600934U CN201600934U CN2009202699354U CN200920269935U CN201600934U CN 201600934 U CN201600934 U CN 201600934U CN 2009202699354 U CN2009202699354 U CN 2009202699354U CN 200920269935 U CN200920269935 U CN 200920269935U CN 201600934 U CN201600934 U CN 201600934U
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Abstract
A strengthened core expanded diameter conductor comprises an inner core and a conducting layer wound on the inner core in hinging manner. The inner core is a carbon fiber core layer (1) made of carbon fibers; and the carbon fiber layer is formed by integrally hinging one or a plurality of carbon fiber yarns. The conductor has the advantages of lighter weight, higher strength and capability of increasing conductor span, reducing the number of rod towers, and lowering the cost of paving electric transmission lines. Moreover, the conductor needs not to modify an original line, and can directly install the original line on a rod tower which is used in order to lower the costs of modification and dilatation.
Description
Technical field
The utility model belongs to the power transmission and transformation technical field, is specifically related to a kind of strengthening core expanded conductor.
Background technology
Continuous development along with economy and urbanization process, the power load of original supply line (be lead or be called cable) increases day by day, can not satisfy present need for electricity, for satisfying need for electricity, can realize by laying new supply line again or existing supply line being transformed.
If adopt the mode lay new supply line again, its consuming time long, cost is higher, it is bigger to implement difficulty.Therefore, adopt the mode (promptly on original supply line corridor, adopting large-section lead) of transforming existing supply line to improve its power supply capacity usually.But, the area of section that increases power transmission line is indicating that the weight of unit volume lead will increase, and iron tower design load on the current power transmission circuit and sag can't carry present large-section lead, therefore, can not directly change with present large-section lead.If change, also need to change iron tower, like this with present large-section lead, replacement cost and difficulty of construction have not only been increased, and prolonged the engineering time, original transmission line user's production and life brought influence, thereby bring huge pressure for the operation of existing system.
Improved though improve the ability to transmit electricity of supply line by the mode of transforming, be subjected to the restriction of prior art, the cost of its realization is very high.
The utility model content
In order to solve above shortcomings in the prior art, the utility model provides a kind of in light weight, strengthening core expanded conductor that intensity is high, and this lead can not only effectively increase the capacity on transmission of electricity road but also can be laid immediately on the existing shaft tower to change existing power transmission line.
Solving the technical scheme that the utility model technical problem adopted is this strengthening core expanded conductor, comprises inner core and the strand conductive layer on the described inner core, and described inner core is the carbon fiber sandwich layer that carbon fiber is made.
Wherein, described carbon fiber sandwich layer is twisted together by one or more carbon fiber wire and forms.
7 stranded carbon fiber cores that form of ultimate fibre of preferred employing.Described carbon fiber sandwich layer available epoxy with the carbon fiber wire pultrusion, be cured to together, make at its outer pultrusion layer protective layer with glass fabric again.According to different requirements the temperature resistant grade of epoxy resin is also had different requirements, the temperature resistant grade of epoxy resin is respectively 90 °, 120 °, 150 °, 200 °.
Carbon fiber has the following advantages: 1. light weight, density is about 1.6g/cm
3, more about 80% than the weight saving of steel, can reduce the weight of unit volume lead; 2. the tensile strength height is about 7～8 times of steel, so can increase the span of lead, thereby reduces the quantity of iron tower, reduces the construction cost of transmission line; 3. the temperature resistant grade height can be resisted about 160 ° high temperature; 4. have certain conductive capability, therefore, can reduce the loss of lead; 5. also have characteristics such as corrosion-resistant, wear-resistant, that the coefficient of expansion is little, therefore, can improve the life-span of lead.
The most significant advantage of carbon fiber is light weight, tensile strength height, have characteristics such as high temperature resistant, rub resistance, conduction, heat conduction, the coefficient of expansion be little simultaneously, therefore the inner core that adopts carbon fiber to make replaces common steel core, under same outer diameter as, can effectively alleviate the weight of lead, and improve the tensile strength height, thereby the construction cost of minimizing circuit pylon etc.And do not need to transform original circuit, the lead of direct replaceable use on original circuit.
Described conductive layer can comprise that one or more layers dredges around layer and be positioned at described one or more layers tight stranded layer of dredging on layer.
Preferably, described dredging around layer comprises adjacent internal layer and adjacent outer, and described adjacent internal layer dextrad, adjacent outer left-hand twist from inside to outside successively on the carbon fiber sandwich layer; Described tight stranded layer comprises skin, and outer dextrad closely is stranded on the adjacent skin.Wherein, adjacent internal layer and adjacent skin can increase the external diameter of lead, improve the conveying capacity of lead; The outer corona discharge that closely is stranded in adjacent skin with the minimizing lead.
Preferred adjacent internal layer and the adjacent outer aluminium single line that adopts are made, and are distributed on the carbon fiber sandwich layer, and be even to guarantee the gap between the aluminium single line.
Adjacent internal layer, adjacent outer and outer stranded pitch range are respectively 210～230mm, 270～290mm and 300～330mm.
Because inner core adopts carbon fiber to make, reduced to install the elongation of wriggling of moulding after laying greatly, reduced the permanent deformation of lead, improved ampacity, can reach the effect of increase-volume; Because adjacent internal layer and adjacent to outer dredging around the even coiling of mode, so lightweight construction can reduce the circuit cost; Because outer conductive layer is with the even coiling of tight mode, and outer field smooth surface, therefore not only can reduce the electric field strength of conductive line surfaces greatly, avoid corona discharge, can also reduce wireless interference.
The described outer aluminium single line strand that adopts is around forming.It is that to be entwined or to adopt the cross section be that the lead coiling of " ladder type " forms to circular lead that described tight stranded layer can adopt the cross section.Preferably described tight stranded layer adopts the cross section to make for the conduction single line of " ladder type ", adopt the lead of " ladder type " structure can make the strengthening core expanded conductor surface compact and smooth more that becomes, the more effective electric field strength that reduces strengthening core expanded conductor surface, avoid corona discharge, and reduce wireless interference.
The utility model strengthening core expanded conductor has the following advantages:
Because the carbon fiber core that inner core adopts carbon fiber to make, weight is light, the higher characteristics of intensity and carbon fiber core has, twist thereon around conductive layer and not only can enlarge the conductive section of lead to improve the ability to transmit electricity of lead, and can also alleviate the weight of lead, therefore, do not need to transform original circuit, can directly it be installed on the shaft tower of the low capacity of using, to reduce the cost of transforming dilatation.In addition, adopt the utility model strengthening core expanded conductor to lay transmission line, can increase lead span (span can reach 2303 meters-3000 meters), thereby reduce the quantity of shaft tower, reduced the cost of laying transmission line.
In addition,, therefore also have the following advantages because the utility model strengthening core expanded conductor has lightweight characteristics: lower to the shaft tower requirement of strength, can reduce the manufacturing cost of shaft tower; Convenient transportation can reduce the cost that transports lead; Easy construction can reduce working strength of workers.
Description of drawings
Fig. 1 is the structural representation of strengthening core expanded conductor among the utility model embodiment 1
Fig. 2 is the structural representation of strengthening core expanded conductor among the utility model embodiment 2
Among the figure: the adjacent outer 4-skin of the adjacent internal layer 3-of 1-carbon fiber sandwich layer 2-
Embodiment
For making those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Following examples are indefiniteness embodiment of the present utility model.
Embodiment 1:
As shown in Figure 1, the utility model strengthening core expanded conductor comprises inner core and conductive layer.The carbon fiber sandwich layer 1 of described inner core for adopting carbon fiber to make.In actual use, carbon fiber sandwich layer 1 can be single structure, also can be many lay configuration.When the carbon fiber wire in the carbon fiber sandwich layer 1 adopts many, by adopt epoxy resin with described many carbon fiber wire pultrusions, be cured to together, make at the outer pultrusion layer protective layer of carbon fiber wire with glass fabric again.In the present embodiment, carbon fiber sandwich layer 1 by 7 carbon fiber wire left-hands strand around forming, strand around after the diameter of carbon fiber sandwich layer 1 be 7.4mm.
Because carbon fiber is a kind of, conductance also thinner, also lighter, also firmer than steel, also more corrosion-resistant than stainless steel, also more high temperature resistant than heat resisting steel than aluminium than spider silk and the approaching material of copper, it has light weight and the high advantage of tensile strength, also has characteristics such as high temperature resistant, rub resistance, conduction, heat conduction, the coefficient of expansion be little simultaneously.The inner core made from carbon fiber replaces common steel core, under identical external diameter, can alleviate the weight of lead effectively, and the tensile strength height, can reduce the construction cost of circuit pylon etc.Replace steel core with high-intensity carbon fiber, can alleviate the weight of lead greatly, improve tensile strength and temperature resistant grade.Need to prove, though the cost of present this carbon fiber complex core is than higher, but along with the development of China's Carbon Fiber Technology, utilize carbon fiber complex core will progressively dwindle, make this lead " popular, routinize " as the price and the conventional wires price of the lead of core.
Conductive layer can comprise that one or more layers dredges around layer and be positioned at one or more layers tight stranded layer of dredging on layer.In the present embodiment, described dredge comprise around layer two-layer, promptly adjacent internal layer 2 and adjacent outer 3, closely stranded layer comprises one deck, promptly outer 4.Adjacent internal layer 2, adjacent outer 3 and outer 4 twists from inside to outside successively equably on carbon fiber sandwich layer 1, adjacent layer with layer between stranded direction opposite.
Wherein, evenly strand is on carbon fiber sandwich layer 1 around mode to dredge for adjacent internal layer 2, and strand is a dextrad around direction, and strand is 219mm around pitch; Adjacent outer 3 to dredge around the even strand of mode on adjacent internal layer 2, and strand is a left-hand around direction, and strand is 283mm around pitch; Outer 4 closely evenly twist on adjacent outer 3, and strand is a left-hand around direction, and strand is 315mm around pitch.The outermost layer of this lead be tight strand around skin 4, this tight strand around structure can reduce the electric field strength of conductive line surfaces, reduce the corona discharge phenomenon is avoided in wireless interference.
In the present embodiment, it is the circular aluminium single line of 3.6mm that adjacent internal layer 2, adjacent outer 3 and outer 4 all adopts diameter.
It is to be noted, in actual applications, can increase the cross section of lead according to the needs of capacity, dredge around three layers, four layers or more multi-layered aluminium single line on the carbon fiber sandwich layer 1 or dredging, but will guarantee that outermost direction of lay is a dextrad around closely stranded aluminium single line more than two-layer on the layer.Few and the outer single line of internal layer single line of this structure is many, but the structure of lead remains stable.
Be pointed out that also the aluminium single line can also replace with other electric conducting materials such as copper, these all belong to protection range of the present utility model.
Embodiment 2:
The difference of present embodiment and embodiment 1 is, as shown in Figure 2, in the present embodiment, outer 4 is not to adopt circular aluminium single line, be the aluminium single line of " ladder type " but adopt the cross section, but adjacent internal layer 2 and adjacent skin 3 still adopt the aluminium single line of circular cross-section to make.
As shown in Figure 2, adopt the aluminium single line in " ladder type " cross section to press the system of strand at outer 4 o'clock, the minor face in " ladder type " cross section contacts with adjacent outer 3, and the long limit in " ladder type " cross section constitutes the outer surface of the utility model strengthening core expansion through lead.
The difference of long limit of many aluminium single lines of " ladder type " structure and bond length should satisfy: when the aluminium single line in " ladder type " cross section is wrapped in adjacent outer 3 the time, its minor face and long limit all can fit together closely, that is to say, the minor face of the many aluminium single lines of " ladder type " structure has constituted outer 4 internal diameter jointly, and the long limit of many aluminium single lines has constituted outer 4 external diameter jointly.
In the present embodiment, outer 4 adopt " ladder type " cross section, can make the structure of wire external layer 4 become more closely smooth, reduce the electric field strength of conductive line surfaces and to wireless interference, avoid the corona discharge phenomenon to take place.
Be understandable that above execution mode only is the illustrative embodiments that adopts for principle of the present utility model is described, yet the utility model is not limited thereto.For those skilled in the art, under the situation that does not break away from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement also are considered as protection range of the present utility model.
Claims (10)
1. strengthening core expanded conductor comprises inner core and the strand conductive layer on the described inner core, it is characterized in that described inner core is the carbon fiber sandwich layer (1) that carbon fiber is made.
2. strengthening core expanded conductor according to claim 1 is characterized in that described carbon fiber sandwich layer (1) is twisted together by one or more carbon fiber wire to form.
3. strengthening core expanded conductor according to claim 2, it is characterized in that described carbon fiber sandwich layer (1) be with epoxy resin with the carbon fiber wire pultrusion, be cured to together, make at its outer pultrusion layer protective layer with glass fabric again.
4. according to the described strengthening core expanded conductor of one of claim 1-3, it is characterized in that described conductive layer comprises that one or more layers dredges around layer and be positioned at described one or more layers tight stranded layer of dredging on layer.
5. strengthening core expanded conductor according to claim 4 is characterized in that described dredging around layer comprises adjacent internal layer (2) and adjacent outer (3), and described adjacent internal layer (2) dextrad and adjacent outer (3) left-hand twist from inside to outside successively on carbon fiber sandwich layer (1); Described tight stranded layer comprises skin (4), and outer (4) dextrad closely is stranded on adjacent outer (3).
6. strengthening core expanded conductor according to claim 5 is characterized in that adjacent internal layer (2) and adjacent skin (3) adopt aluminium single line to make, and is distributed on the carbon fiber sandwich layer (1).
7. strengthening core expanded conductor according to claim 6 is characterized in that adjacent internal layer (2), adjacent outer (3) and outer (4) stranded pitch range are respectively 210～230mm, 270～290mm and 300～330mm.
8. according to the described strengthening core expanded conductor of claim 5, it is characterized in that described skin (4) adopts aluminium single line strand around forming.
9. strengthening core expanded conductor according to claim 4 is characterized in that described dredging around layer and described tight stranded layer employing cross section is entwined for circular lead.
10. strengthening core expanded conductor according to claim 4 is characterized in that described tight stranded layer adopts the cross section to form for the lead coiling of " ladder type ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202699354U CN201600934U (en) | 2009-11-04 | 2009-11-04 | Strengthened core expanded diameter conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202699354U CN201600934U (en) | 2009-11-04 | 2009-11-04 | Strengthened core expanded diameter conductor |
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| CN201600934U true CN201600934U (en) | 2010-10-06 |
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| CN2009202699354U Expired - Fee Related CN201600934U (en) | 2009-11-04 | 2009-11-04 | Strengthened core expanded diameter conductor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034572A (en) * | 2010-12-15 | 2011-04-27 | 沈阳中恒新材料有限公司 | Carbon fiber composite core rod |
| CN102658656A (en) * | 2012-05-18 | 2012-09-12 | 北京中材汽车复合材料有限公司 | Preparation method for glass fibre reinforced resin composite plate spring |
| CN103390469A (en) * | 2013-07-26 | 2013-11-13 | 苏州古河电力光缆有限公司 | Synchronous cabling and stranding method of optical fiber composite overhead ground wires (OPGWs) |
| CN103872594A (en) * | 2014-03-24 | 2014-06-18 | 中国能源建设集团广东省电力设计研究院 | DC field conductor structure of +/- 160 kV flexible DC converter station |
| CN103903681A (en) * | 2014-04-23 | 2014-07-02 | 山东大学 | Novel fiber reinforced composite material cable core |
| CN104271667A (en) * | 2012-04-27 | 2015-01-07 | 陶氏环球技术有限责任公司 | Curable epoxy resin compositions and composites made therefrom |
| CN105281255A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | A medium-voltage power supply line capacity-expanding and reconstruction method |
| CN106876031A (en) * | 2017-03-16 | 2017-06-20 | 江苏亨通电力特种导线有限公司 | A kind of self-damping low loss and high strength aluminium Baogang core heat-resisting aluminium alloy twisted wire |
| CN107103947A (en) * | 2017-05-09 | 2017-08-29 | 成都新三电线厂 | A kind of cable increased the service life |
| CN107346673A (en) * | 2017-07-14 | 2017-11-14 | 中国电力科学研究院 | Carbon fiber composite material core aluminum conductor |
| CN107564602A (en) * | 2017-07-14 | 2018-01-09 | 中国电力科学研究院 | Strand type carbon fiber complex core aluminum conductor |
-
2009
- 2009-11-04 CN CN2009202699354U patent/CN201600934U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034572B (en) * | 2010-12-15 | 2012-06-27 | 沈阳中恒新材料有限公司 | Carbon fiber composite core rod |
| CN102034572A (en) * | 2010-12-15 | 2011-04-27 | 沈阳中恒新材料有限公司 | Carbon fiber composite core rod |
| CN104271667B (en) * | 2012-04-27 | 2018-01-26 | 陶氏环球技术有限责任公司 | Curable epoxy resin composition and the composite being produced from it |
| CN104271667A (en) * | 2012-04-27 | 2015-01-07 | 陶氏环球技术有限责任公司 | Curable epoxy resin compositions and composites made therefrom |
| CN102658656A (en) * | 2012-05-18 | 2012-09-12 | 北京中材汽车复合材料有限公司 | Preparation method for glass fibre reinforced resin composite plate spring |
| CN102658656B (en) * | 2012-05-18 | 2015-02-11 | 北京中材汽车复合材料有限公司 | Preparation method for glass fibre reinforced resin composite plate spring |
| CN103390469B (en) * | 2013-07-26 | 2016-01-13 | 苏州古河电力光缆有限公司 | The synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding |
| CN103390469A (en) * | 2013-07-26 | 2013-11-13 | 苏州古河电力光缆有限公司 | Synchronous cabling and stranding method of optical fiber composite overhead ground wires (OPGWs) |
| CN103872594A (en) * | 2014-03-24 | 2014-06-18 | 中国能源建设集团广东省电力设计研究院 | DC field conductor structure of +/- 160 kV flexible DC converter station |
| CN103872594B (en) * | 2014-03-24 | 2016-06-29 | 中国能源建设集团广东省电力设计研究院有限公司 | ± 160kV flexible direct current converter station DC fields conductor structure |
| CN103903681A (en) * | 2014-04-23 | 2014-07-02 | 山东大学 | Novel fiber reinforced composite material cable core |
| CN105281255A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | A medium-voltage power supply line capacity-expanding and reconstruction method |
| CN106876031A (en) * | 2017-03-16 | 2017-06-20 | 江苏亨通电力特种导线有限公司 | A kind of self-damping low loss and high strength aluminium Baogang core heat-resisting aluminium alloy twisted wire |
| CN107103947A (en) * | 2017-05-09 | 2017-08-29 | 成都新三电线厂 | A kind of cable increased the service life |
| CN107346673A (en) * | 2017-07-14 | 2017-11-14 | 中国电力科学研究院 | Carbon fiber composite material core aluminum conductor |
| CN107564602A (en) * | 2017-07-14 | 2018-01-09 | 中国电力科学研究院 | Strand type carbon fiber complex core aluminum conductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20151104 |
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| EXPY | Termination of patent right or utility model |