CN104517667A - Aluminum-based carbon fiber composite core wire with real-time temperature measuring function - Google Patents
Aluminum-based carbon fiber composite core wire with real-time temperature measuring function Download PDFInfo
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- CN104517667A CN104517667A CN201310463296.6A CN201310463296A CN104517667A CN 104517667 A CN104517667 A CN 104517667A CN 201310463296 A CN201310463296 A CN 201310463296A CN 104517667 A CN104517667 A CN 104517667A
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Abstract
The invention discloses an aluminum-based carbon fiber composite core wire with a real-time temperature measuring function. The aluminum-based carbon fiber composite core wire comprises a core and an aluminum alloy conductor. The core is made by compositing metal aluminum alloy base and carbon fiber material. A plurality of temperature sensing fibers are embedded in the core and are silica fibers with high-temperature resistance. The sensing fibers are coated with modified polyimide coating layers. A copper layer is arranged on the outer surface of the core and covered with pyrolytic carbon layer. The aluminum alloy conductor is hinged around the pyrolytic carbon layer. The aluminum-based carbon fiber composite core wire is anti-electromagnetic interference, high in conductivity, strong in bending strength and extension strength and effective in high-temperature and heat resistance; the temperature sensing fibers serve as sensing elements and transmission signal medium, distributed measurement is achieved, temperature of any positions of the core can be monitored in real time only by adding temperature testing equipment at an interface, and alarm signals are sent out in case of excess temperature.
Description
Technical field
The present invention relates to a kind of overhead transmission line wire, be specifically related to a kind of conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement, belong to aerial condutor manufacturing technology field.
Background technology
Overhead power transmission conducting wire, as the carrier of transmission of electricity power, occupies very consequence in transmission line.For a long time, aerial condutor mainly uses steel reinforced aluminium conductor.The fast development of China's industrial and agricultural production in recent years, the power circuit of some areas is own through not catching up with the needs of development, be badly in need of transformation, but based on the constraint of cost of investment and investment time, the large problem making how to utilize effective corridor resource to improve transmission line capability becomes power construction.For methods such as general the raising electric pressure, transformation circuit or the use large-section leads that adopt, all may solve of short duration problem, but the employing of these methods also brings a lot of problem, as original shaft tower equipment must be changed, and improves insulation level, newly levy soil and will study feasible embodiment.These problems not only bring huge input economically, and often also can not meet the active demand of circuit increase-volume in time.Therefore, explore new wire line style, transmit with efficient low-consume the continuous pursuit that electric energy is China electric power scientific worker.
CTC company of the U.S. was proposed the composite material synthesising wire that model is ACCC in 2003, its heart yearn is the single plug be mixed by carbon fiber and glass fibre, and outer is trapezoid cross section with the outer aluminum steel stock of neighbour.This novel conductive wire has lightweight, the advantage such as intensity is large, conductivity is high, coefficient of linear expansion is little, corrosion-resistant long service life compared with conventional wires.But also there is the weakness of himself, because the matrix of wire inner core is epoxy resin, when ambient temperature is higher, namely when plexiglas transition temperature, the mechanical performance of wire inner core sharply declines, and the region that the stress of conductor is concentrated there will be the fracture of heart yearn, causes and has a power failure on a large scale, repairing work is very difficult, and cause the loss of huge manpower and materials, therefore need to carry out Real-Time Monitoring to the variations in temperature of wire, but the wire inner core of currently available technology cannot directly be measured.
Summary of the invention
The object of the present invention is to provide a kind of conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement, the defect of thermometric cannot be monitored in real time with the wire inner core easy fracture and the wire inner core when temperature is higher that overcome the ACCC composite material synthesising wire of prior art.
To achieve these goals, technical scheme of the present invention is:
A conducting wire with aluminum base carbon fiber composite material core for energy real time temperature measurement, comprise wire inner core and outer field aluminium alloy conductor thereof, described wire inner core is composited by metallic aluminium matrix and carbon fibre material; Embed some temperature sensing optical fibers in described wire inner core, described temperature sensing optical fiber is resistant to elevated temperatures silica fiber, the polyimide paint layer of outer coating modification; The outer surface of wire inner core arranges copper coating, and described copper plate is wrapped with pyrolytic carbon layer, and aluminium alloy conductor hinge in around pyrolytic carbon layer.
As the improvement to technique scheme, the temperature monitoring scope of described temperature sensing optical fiber is-100 DEG C ~ 400 DEG C.
As the improvement to technique scheme, the metallic aluminium matrix that in wire inner core, carbon fiber percent by volume is 2-5%, all the other are made for Raw Aluminium.
As the improvement to technique scheme, in the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement, copper coating percent by volume is 1.2 ~ 1.5%, and pyrolytic carbon layer percent by volume 1 ~ 10%, all the other are Raw Aluminium
As the improvement to technique scheme, described pyrolytic carbon layer has complete three-dimensional graphite crystal structure, crystalline size La >=150nm, and the orientation height of graphite grains is consistent.
As the improvement to technique scheme, described pyrolytic carbon layer and copper plate, aluminium alloy conductor are combined closely, and interface is totally clear, the crystal plane be parallel of the crystal face of pyrolytic carbon layer and the carbon fiber of wire inner core.
Compared with prior art, the conducting wire with aluminum base carbon fiber composite material core tool of energy real time temperature measurement of the present invention has the following advantages:
1, electromagnetism interference, the present invention determines the temperature of heart yearn by the wavelength of reverberation, not by the impact of electromagnetic field, has good anti-electromagnetic interference capability.
2, more high temperature resistant.Due to copper plate, metal aluminum based is more high temperature resistant than resin matrix, and temperature sensing optical fiber can the temperature of p-100 DEG C ~ 400 DEG C of scopes be monitored, and therefore wire of the present invention has higher thermal endurance.
3, conductivity is high.Because metal aluminum based, copper plate have higher conductivity than resin matrix, therefore wire of the present invention has better electric conductivity.
4, flexural strength is large.Because copper plate, metal aluminum based have higher intensity than resin matrix and the mechanical property of metallic aluminium is isotropic, therefore with aluminum base carbon fiber composite material, there is higher flexural strength, not easily break when bearing bending stress.
5, tensile strength is large.Because copper plate, metal aluminum based have higher mechanical strength than resin matrix, therefore wire of the present invention has higher tensile strength.The tensile strength of aluminum base carbon fiber composite material is 3 times of general tensile strength of wire, is 2 times of high-tensile steel wires.The span between bar, tower can be improved like this, reduce engineering cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further described.
As shown in Figure 1, the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement of the present invention, comprise wire inner core 1 and outer field aluminium alloy conductor 4 thereof, described wire inner core 1 is composited by metallic aluminium matrix and carbon fibre material; Embed some temperature sensing optical fibers 5 in described wire inner core 1, described temperature sensing optical fiber 5 is resistant to elevated temperatures silica fiber, the polyimide paint layer of outer coating modification; The outer surface of wire inner core 1 arranges copper coating 2, and described copper plate 2 is wrapped with pyrolytic carbon layer 3, and aluminium alloy conductor 4 hinge in pyrolytic carbon layer 3 around.
The wire inside of this invention is provided with temperature sensing optical fiber 5, utilize temperature sensing optical fiber 5 as sensing responsive element and signal transmission medium, realize distributed measurement, only need add corresponding temperature measuring equipment at interface just can the temperature of Real-Time Monitoring wire inner core 1 optional position, once temperature is too high just send alarm signal.
The temperature monitoring scope of described temperature sensing optical fiber 5 is-100 DEG C ~ 400 DEG C.
The metallic aluminium matrix that in wire inner core 1, carbon fiber percent by volume is 2-5%, all the other are made for Raw Aluminium.
In the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement, copper coating 2 percent by volume is 1.2 ~ 1.5%, and pyrolytic carbon layer 3 percent by volume 1 ~ 10%, all the other are Raw Aluminium.
Described pyrolytic carbon layer 3 has complete three-dimensional graphite crystal structure, crystalline size La >=150nm, and the orientation height of graphite grains is consistent.
Described pyrolytic carbon layer 3 is combined closely with copper plate 2, aluminium alloy conductor 4, and interface is totally clear, the crystal plane be parallel of the crystal face of pyrolytic carbon layer 3 and the carbon fiber of wire inner core 1.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a conducting wire with aluminum base carbon fiber composite material core for energy real time temperature measurement, comprise wire inner core and outer field aluminium alloy conductor thereof, described wire inner core is composited by metallic aluminium matrix and carbon fibre material; Embed some temperature sensing optical fibers in described wire inner core, described temperature sensing optical fiber is resistant to elevated temperatures silica fiber, and temperature sensing optical fiber applies the polyimide paint layer of modification outward; The outer surface of wire inner core arranges copper coating, and described copper plate is wrapped with pyrolytic carbon layer, and aluminium alloy conductor hinge in around pyrolytic carbon layer.
2. the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement according to claim 1, is characterized in that: the temperature monitoring scope of described temperature sensing optical fiber is-100 DEG C ~ 400 DEG C.
3. the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement according to claim 1 and 2, is characterized in that: the metallic aluminium matrix that in wire inner core, carbon fiber percent by volume is 2-5%, all the other are made for Raw Aluminium.
4. the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement according to claim 3, it is characterized in that: in the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement, copper coating percent by volume is 1.2 ~ 1.5%, pyrolytic carbon layer percent by volume 1 ~ 10%, all the other are Raw Aluminium.
5. the conducting wire with aluminum base carbon fiber composite material core of energy real time temperature measurement according to claim 3, it is characterized in that: described pyrolytic carbon layer has complete three-dimensional graphite crystal structure, crystalline size La >=150nm, the orientation height of graphite grains is consistent.
6. the conducting wire with aluminum base carbon fiber composite material core of the energy real time temperature measurement according to claim 4 or 5, it is characterized in that: described pyrolytic carbon layer and copper plate, aluminium alloy conductor are combined closely, interface is totally clear, the crystal plane be parallel of the crystal face of pyrolytic carbon layer and the carbon fiber of wire inner core.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109790680A (en) * | 2016-09-26 | 2019-05-21 | 挪威国立奥伊威尔瓦克有限公司 | Cordage and a liter system is hung including this cordage |
CN110379555A (en) * | 2018-04-13 | 2019-10-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | A kind of signal transmission wire and its application with big current-carrying and high frequency characteristics |
CN111029008A (en) * | 2019-12-13 | 2020-04-17 | 南京华信藤仓光通信有限公司 | Fire early warning temperature sensing photoelectric composite cable |
WO2021093340A1 (en) * | 2019-11-11 | 2021-05-20 | 重庆泰山电缆有限公司 | Low-voltage cable with built-in optical fiber, and manufacturing method therefor |
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JP2001291429A (en) * | 2000-04-07 | 2001-10-19 | Furukawa Electric Co Ltd:The | Overhead power line and optical fiber composite overhead earth-wire |
CN1570189A (en) * | 2004-05-13 | 2005-01-26 | 上海交通大学 | High heat conductivity, low expansion carbon-carbon/aluminium composite material |
CN201465586U (en) * | 2009-06-19 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Aluminum-base carbon-fiber composite-material core conducting wire |
CN201570315U (en) * | 2009-07-14 | 2010-09-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Intelligent temperature measuring composite material core lead |
CN202512945U (en) * | 2012-04-20 | 2012-10-31 | 河南科信电缆有限公司 | Carbon-fiber photoelectric composite cable with temperature measuring optical grating |
CN202662367U (en) * | 2012-04-21 | 2013-01-09 | 河南科信电缆有限公司 | Carbon-fiber compound-core photoelectric composite overhead conductor |
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Patent Citations (6)
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JP2001291429A (en) * | 2000-04-07 | 2001-10-19 | Furukawa Electric Co Ltd:The | Overhead power line and optical fiber composite overhead earth-wire |
CN1570189A (en) * | 2004-05-13 | 2005-01-26 | 上海交通大学 | High heat conductivity, low expansion carbon-carbon/aluminium composite material |
CN201465586U (en) * | 2009-06-19 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Aluminum-base carbon-fiber composite-material core conducting wire |
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CN202512945U (en) * | 2012-04-20 | 2012-10-31 | 河南科信电缆有限公司 | Carbon-fiber photoelectric composite cable with temperature measuring optical grating |
CN202662367U (en) * | 2012-04-21 | 2013-01-09 | 河南科信电缆有限公司 | Carbon-fiber compound-core photoelectric composite overhead conductor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109790680A (en) * | 2016-09-26 | 2019-05-21 | 挪威国立奥伊威尔瓦克有限公司 | Cordage and a liter system is hung including this cordage |
CN110379555A (en) * | 2018-04-13 | 2019-10-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | A kind of signal transmission wire and its application with big current-carrying and high frequency characteristics |
WO2021093340A1 (en) * | 2019-11-11 | 2021-05-20 | 重庆泰山电缆有限公司 | Low-voltage cable with built-in optical fiber, and manufacturing method therefor |
CN111029008A (en) * | 2019-12-13 | 2020-04-17 | 南京华信藤仓光通信有限公司 | Fire early warning temperature sensing photoelectric composite cable |
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Application publication date: 20150415 |