CN204423930U - The energy-saving low blast wire of composite core - Google Patents
The energy-saving low blast wire of composite core Download PDFInfo
- Publication number
- CN204423930U CN204423930U CN201420203282.0U CN201420203282U CN204423930U CN 204423930 U CN204423930 U CN 204423930U CN 201420203282 U CN201420203282 U CN 201420203282U CN 204423930 U CN204423930 U CN 204423930U
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- copper conductor
- internal layer
- wire
- grating
- steel core
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to the energy-saving low blast wire of a kind of composite core, comprise the steel core that is made up of steel wire and wrap in the internal layer copper conductor of steel core periphery and the outer copper conductor closely adjacent with described internal layer copper conductor, described internal layer copper conductor and outer copper conductor comprise multilayer copper cash, described copper cash comprises many single line copper conductors, described outer copper conductor adopts the copper cash of special-shaped wire structure, and described internal layer copper conductor and outer copper conductor closely cooperate and be wrapped in described steel core periphery; Be provided with a light unit in space between described internal layer copper conductor and outer copper conductor, described light unit comprises multifiber, and at least one optical fiber is inscribe the grating fibers having thermometric grating.The beneficial effects of the utility model are: the blast of wire reduces, can be energy-conservation, not only can communicate, can also Real-Time Monitoring cable temperature.
Description
Technical field
The utility model belongs to cable conductor field, and specifically a kind of reduction wire blast, adapts to the energy-saving low blast wire of composite core that the environment such as strong wind, high mountain tuyere area uses.
Background technology
The blast that in overhead transmission line, wire is subject to account for that whole transmission line is subject to blast 50% ~ 70%, except the intensity of wire itself will be resisted live except effect that wind carries, the supporter (shaft tower) of wire also must carry live the synergy of wind load that wire passes over and the wind load that shaft tower itself is subject to thereof.The Intensity Design of blast on iron tower foundation and tower body body of wire has great impact, and for a long time, Research Work of Power Transmission Line person pays close attention to the problem reducing wire blast all the time, makes every effort to by a kind of comparatively easy method, wire blast to be dropped to minimum.Reduce wire blast the fail safe reducing circuit cost and the operation of raising circuit is had great importance.
In addition, there is now photoelectric compound cable, there is optical fiber communication function and electric power transfer function, the transmission of various control signal, network signal and electric power can be realized, adapt to the use needs of telecommunications network, Broadcasting Cable Network, the Internet, the many net fusions of power network.But this photoelectric compound cable temperature rise situation that is in operation cannot be monitored, easily occur to cause the phenomenon of whole cable bad because electrical lead load increase causes to heat up.
Summary of the invention
Technical problem to be solved in the utility model is the above-mentioned defect overcoming prior art, provides a kind of composite core energy-saving low blast wire.
The utility model solves the technical scheme that its technical problem adopts:
The energy-saving low blast wire of a kind of composite core, it is characterized in that, comprise the steel core that is made up of steel wire and wrap in the internal layer copper conductor of steel core periphery and the outer copper conductor closely adjacent with described internal layer copper conductor, described internal layer copper conductor and outer copper conductor comprise multilayer copper cash, described copper cash comprises many single line copper conductors, described outer copper conductor adopts the copper cash of special-shaped wire structure, and described internal layer copper conductor and outer copper conductor closely cooperate and be wrapped in described steel core periphery; A light unit is provided with in space between described internal layer copper conductor and outer copper conductor, described light unit comprises multifiber and the Loose tube set gradually from inside to outside, non-metal reinforced layer and sheath, described Loose tube is enclosed within outside described optical fiber, full dry type water-blocking material is filled in described Loose tube, be provided with many equally distributed water blocking yarns in described non-metal reinforced layer, be embedded with between described non-metal reinforced layer and described sheath and tear rope; At least one optical fiber is inscribe the grating fibers having thermometric grating, and grating fibers forms a grating point for measuring temperature at interval of predetermined distance, and predetermined distance is 300-500 rice.
The cross section of described special-shaped wire structure copper cash can be trapezoidal, Z-type or S type, trapezoidal, Z-type, S type composition sector structure, form the layers of copper of v-shaped structure, outer employing sector structure and vee-cut form is adopted by conductive line surfaces, make conductive line surfaces form certain roughness, thus reduce the air resistance coefficient of wire, theoretical according to peripheral flow in fluid mechanics, improve the roughness of conductive line surfaces, make wire in a fluid boundary separation become turbulent flow from laminar flow.
As further improvement of the utility model, the cross section of described sector structure is 30 °-120 ° to described steel core central opening angular region.
The beneficial effects of the utility model are: the utility model conductor skin adopts sector structure, and the end of a part of sector crosssection is small arc-shaped, and two small arc-shapeds form 1 vee-cut, make conductive line surfaces form certain roughness; When wire is in wind field, because boundary layer separation occurs in lee face, recirculating zone is relatively little, the pressure drag of wire reduces, although the frictional resistance of wire increases to some extent in boundary layer, because pressure drag is the major part of resistance, therefore total resistance is less, resistance coefficient is corresponding reduction also, and the blast of wire reduces.Use copper conductor can be energy-conservation.
As used cable of the present utility model in actual production, both can normal transmission of electric energy, can communication be carried out again, self can also carry out temperature survey.Which offers a saving the equipment such as ADSL, the OPGW increased in order to power communication, also can reduce the accidents such as the thunderbolt caused because of OPGW and threaten.The GPS wire temperature measuring equipment of the use taked at present work very high cost can also be saved in addition, save huge cost.Using cable of the present utility model as the circuit of transferring electric power time, staff directly can determine the actual bearer situation of circuit to line temperature according to described traverse survey.
The utility model to reinforcement wire on-line monitoring, grasp variations in temperature, improve wire transmission capacity, reduce line loss, improve safe operation of electric network, increase communication backup, solve comprehensive communication plan etc. aspect and all show and provide large economic benefit and social benefit, especially build in environment-friendly type, the controlling the trend of economical society in country instantly with all strength and more demonstrate powerful realistic meaning.
Accompanying drawing explanation
Fig. 1 is cross sectional representation of the present utility model;
Fig. 2 is the cross sectional representation of light unit in the utility model.
Embodiment
As shown in Figure 1, the energy-saving low blast wire of a kind of composite core, comprise by the stranded steel core 1 of seven Gent High Strength Steel lines 4 and wrap in the internal layer copper conductor 2 of steel core 1 periphery and the outer copper conductor 3 closely adjacent with described internal layer copper conductor 2, described internal layer copper conductor 2 and outer copper conductor 3 comprise multilayer copper cash, described copper cash comprises many single line copper conductors, described internal layer copper conductor 2 and outer copper conductor 3 closely cooperate and are wrapped in described steel core 1 periphery, described outer copper conductor 3 adopts the super heat resistant copper alloy line of ladder track structure to form sector structure, the angular aperture scope of described sector crosssection to described steel core 1 center is 60 °, described internal layer copper conductor 2 adopts that circular heat resistant copper alloy line is stranded to be formed.
A light unit 5 is provided with in space between described internal layer copper conductor 2 and outer copper conductor 3, as shown in Figure 2, described light unit 5 comprises multifiber 51 and the Loose tube 52 set gradually from inside to outside, non-metal reinforced layer 53 and sheath 54, Loose tube 52 is enclosed within outside optical fiber 51, full dry type water-blocking material 55 is filled in Loose tube 52, be provided with many equally distributed water blocking yarns 56 in non-metal reinforced layer 53, be embedded with between non-metal reinforced layer 53 and sheath 54 and tear rope 57; At least one optical fiber is inscribe the grating fibers having thermometric grating, and grating fibers forms a grating point for measuring temperature at interval of predetermined distance, and predetermined distance is 300-500 rice.
The utility model adopts the method directly making imprinting grating on optical fiber to carry out the manufacture of thermometric conductor.Be the light sensitivity utilizing fiber optic materials with the grating fibers that optical fiber imprinting becomes, by special processing mode, make to form space phase grating in fibre core, be partially formed the mirror surface of an arrowband, reflection is formed to the light of specific wavelength.When the temperature of optical fiber changes, the surrounding of grating can change along with expanding with heat and contract with cold of optical fiber, and this change can change reflection wavelength, by measuring the wavelength change of reverberation, just can measure the optical fiber temperature sensor of grating present position.Equally, by measuring the delay of reverberation, the position of grating can be learnt.Here it is utilizes the principle of grating fibers thermometric.
Direct quarter, the mode of grating did not produce supplementary load loss, and can not affect measuring distance, this production method is better than the production method of welding.The grating fibers thermometric mode become by optical fiber imprinting is owing to being special optical fiber targetedly, and reflected signal is strong, therefore requires all lower than Raman reflection thermometric mode to the transmitting power of equipment and receiving sensitivity, and the good stability of equipment.The benefit simultaneously brought is far measuring distance, and measuring distance can at more than 100km, and certainty of measurement is within ± 2 DEG C.
At least one optical fiber in these optical fiber carries out inscription grating, carries out inscription grating, by the temperature sensor of utilizing emitted light signal measurement diverse location grating in the position of setting.Here it is achieves and utilizes grating fibers thermometric.The utility model does not need the continuous temperature distribution of measuring whole piece circuit, every 300 ~ 500 meters of measurement points can be selected, or strengthen distribution optical grating point in sag minimum point, select the thermometric mode monitoring circuit variations in temperature of grating fibers, defeated biography capacity can be adjusted by the temperature grasped at any time.Preferably, 300 meters, 400 meters, the 500 meters spacing distances as adjacent point for measuring temperature can be selected.
According to a specific embodiment of the present utility model, light unit inside is installed with 24 optical fiber, and 8 optical fiber in these 24 optical fiber carry out inscription grating.All imprinting 15 gratings on every root in these 8 optical fiber, i.e. totally 15 points for measuring temperature on every root.In this embodiment, use 16 optical fiber in 24 optical fiber to carry out communication, utilize 8 imprintings in 24 optical fiber to have the optical fiber of grating to carry out thermometric.Facts have proved, the method can reach good effect.
As used cable of the present utility model in actual production, both can normal transmission of electric energy, can communication be carried out again, self can also carry out temperature survey.Which offers a saving the equipment such as ADSL, the OPGW increased in order to power communication, also can reduce the accidents such as the thunderbolt caused because of OPGW and threaten.The GPS wire temperature measuring equipment of the use taked at present work very high cost can also be saved in addition, save huge cost.Using cable of the present utility model as the circuit of transferring electric power time, staff directly can determine the actual bearer situation of circuit according to the line temperature measured.
Claims (1)
1. the energy-saving low blast wire of composite core, it is characterized in that, comprise the steel core that is made up of steel wire and wrap in the internal layer copper conductor of steel core periphery and the outer copper conductor closely adjacent with described internal layer copper conductor, described internal layer copper conductor and outer copper conductor comprise multilayer copper cash, described copper cash comprises many single line copper conductors, described outer copper conductor adopts the copper cash of special-shaped wire structure, and described internal layer copper conductor and outer copper conductor closely cooperate and be wrapped in described steel core periphery; A light unit is provided with in space between described internal layer copper conductor and outer copper conductor, described light unit comprises multifiber and the Loose tube set gradually from inside to outside, non-metal reinforced layer and sheath, described Loose tube is enclosed within outside described optical fiber, full dry type water-blocking material is filled in described Loose tube, be provided with many equally distributed water blocking yarns in described non-metal reinforced layer, be embedded with between described non-metal reinforced layer and described sheath and tear rope; At least one optical fiber is inscribe the grating fibers having thermometric grating, and grating fibers forms a grating point for measuring temperature at interval of predetermined distance, and predetermined distance is 300-500 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203282.0U CN204423930U (en) | 2014-04-24 | 2014-04-24 | The energy-saving low blast wire of composite core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203282.0U CN204423930U (en) | 2014-04-24 | 2014-04-24 | The energy-saving low blast wire of composite core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204423930U true CN204423930U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203282.0U Expired - Fee Related CN204423930U (en) | 2014-04-24 | 2014-04-24 | The energy-saving low blast wire of composite core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204423930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507659A (en) * | 2017-07-10 | 2017-12-22 | 南京航空航天大学 | The forming method of SPL in a kind of low blast wire and the low blast wire |
| CN111584120A (en) * | 2020-05-20 | 2020-08-25 | 远东电缆有限公司 | Capacity-increasing wind resistance wire and preparation method thereof |
-
2014
- 2014-04-24 CN CN201420203282.0U patent/CN204423930U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507659A (en) * | 2017-07-10 | 2017-12-22 | 南京航空航天大学 | The forming method of SPL in a kind of low blast wire and the low blast wire |
| CN111584120A (en) * | 2020-05-20 | 2020-08-25 | 远东电缆有限公司 | Capacity-increasing wind resistance wire and preparation method thereof |
| CN111584120B (en) * | 2020-05-20 | 2022-01-07 | 远东电缆有限公司 | Capacity-increasing wind resistance wire and preparation method thereof |
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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: 20150624 Termination date: 20190424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |