CN109003722A - A kind of resistance to wind energy cable with twisting of stretch-proof used for wind power generation - Google Patents
A kind of resistance to wind energy cable with twisting of stretch-proof used for wind power generation Download PDFInfo
- Publication number
- CN109003722A CN109003722A CN201810766822.9A CN201810766822A CN109003722A CN 109003722 A CN109003722 A CN 109003722A CN 201810766822 A CN201810766822 A CN 201810766822A CN 109003722 A CN109003722 A CN 109003722A
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- CN
- China
- Prior art keywords
- cable
- unit
- arc
- layer
- stretch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a kind of resistance to wind energy cable with twisting of stretch-proof used for wind power generation, it from outside to inside successively include oversheath, armor, outer fire resistant layer and external insulation layer, there is support unit in the external insulation layer, the support unit includes the arc-shaped arc unit of central tube and 3 sections, the arc unit is the arc-shaped sheet in the section that extends longitudinally along the cable, connection unit is connected between each arc unit and central tube, multiple pressure pipes are fixedly connected on the outside of the arc unit, there is tension rope in the central tube, there are 3 cable cores in the external insulation layer, the cable core includes conductor from inside to outside, inner insulating layer, shielded layer, interior flame-retardant layer and inner sheath.Cable stretch-proof of the invention, resistance to twisting property are good.
Description
Technical field
The present invention relates to field of cables, and in particular to a kind of resistance to wind energy cable with twisting of stretch-proof used for wind power generation.
Background technique
With advances in technology and development, cable have been indispensable electrical equipment in life and production, electricity at present
The difference of cable depending on the application can be divided into power cable, signal cable etc., can be divided into ocean electricity according to the difference of use occasion
A variety of cables such as cable, wind electric power generation cable.The inside of tower of the cable of wind-power electricity generation due to passing through wind power generation plant, the height of tower
Degree is high, and cable in use can be therefore higher to the mechanical property requirements of cable by reversed torsion.Current wind energy
Cable type is various, but is not able to satisfy whole needs still.
Summary of the invention
Goal of the invention: the present invention is directed to overcome the deficiencies of existing technologies, a kind of resistance to torsion of stretch-proof used for wind power generation is provided
Wind energy cable.
Technical solution: a kind of cable successively includes oversheath, armor, outer fire resistant layer and external insulation layer, institute from outside to inside
Stating has support unit in external insulation layer, and the support unit includes the arc-shaped arc unit of central tube and 3 sections, described
Arc unit is the arc-shaped sheet in the section that extends longitudinally along the cable, is connected between each arc unit and central tube
Connection unit is fixedly connected with multiple pressure pipes on the outside of the arc unit, has tension rope in the central tube, described outer
There are 3 cable cores, the cable core includes conductor, inner insulating layer, shielded layer, interior flame-retardant layer from inside to outside in insulating layer
And inner sheath.
Further, the connection unit has 3, and each connection unit connects 1 arc unit and the central tube, institute
Stating connection unit is the sheet extended along cable length direction.
Further, 3 cable cores and 3 connection unit alternate intervals distributions, the cable core is relative to arc
Unit is closer to the central tube.
Further, the outer fire resistant layer is anti-flammability PVC band.
Further, the oversheath and inner sheath are made of polythene material.
Further, the armor is steel wire armor layer.
Further, the pressure pipe has rubber to be made.
The invention also discloses a kind of cable, including multiple clamping devices and multiple wind energy cables, the clamping device packets
Annulus cylindrical portion, pressurizing unit, clamping screw and locking nut are included, the annulus cylindrical portion is connected with circle by multiple dowels
Plate, pressurizing unit include the first stripper plate, the second stripper plate and the connecting cylinder for connecting the first and second stripper plate, and described first and second squeezes
The cross section of pressing plate is circle, and the two sides of the longitudinal section of the first and second stripper plate are arc shaped, and the maximum of the first stripper plate is outer
Diameter is greater than the maximum outside diameter of the second stripper plate, is fixedly connected at the top of the first stripper plate and connecting cylinder, the second stripper plate with connect
The bottom of cylinder is fixedly connected, and first stripper plate has first through hole, and the second stripper plate has the second through-hole, the plectane tool
There is third through-hole, the bolt passes through first through hole, connecting cylinder, the second through-hole, third through-hole and locking nut and locks；The circle
The vertical through slot that the inside in Ring-cylindrical portion has multiple sections arc-shaped, each vertical through slot are worn by a wind energy cable
It crosses.
Further, first stripper plate abuts all cables in the annulus cylindrical portion cooperated with the stripper plate, or
Second stripper plate described in person abuts and all cables in the annulus cylindrical portion of stripper plate cooperation.
Setting in this way, so that multiple wind energy cables form an entirety by multiple gripping apparatus grips, therefore
Whole intensity is bigger, and avoids and be in contact friction between the surface of each wind energy cable and generate damage.In order to protect
Effect is demonstrate,proved, 0.5-1 meters or 1 meter or so of adjacent clamping device interval can be made.And as shown, passing through clamping screw and lock
Tight nut is locked, and is that the second stripper plate and each cable abut, when vertical when the cable size in vertical through slot is larger
It is that the first stripper plate and each cable abut when cable size in through slot is smaller.First and second stripper plate cooperate elastomeric pad by
Prevent cable from sliding in vertical through slot in the frictional force that big extruding force generates.
It further, further include controller and wireless communication unit, the annulus cylindrical portion is fixedly connected with fixed bracket
And fixed block, the fixed block have through hole, and detection cable is equipped in the through hole, the plectane upper surface has temperature
Sensor is spent, the lower surface of the plectane is fixedly connected with fan unit, the upper surface tool of the fixed block by blower tray
There is installation groove, there is laser emitter in the installation groove, the lower surface of the fixed block has optical receiver, the inspection
Surveying has power transmission line and signal transmssion line in cable, the detection cable can be fan unit, temperature sensor, excitation
Transmitter and optical receiver power supply, and the signal of temperature sensor and optical receiver can be transmitted；Controller is controlled, non-
In detection pattern, close all excitation-emission devices and all optical receivers, and work as the measurement of some temperature sensor
When value is greater than temperature given threshold, the fan unit of the clamping unit where the temperature sensor is set to be in starting state, when certain
When the measured value of a temperature sensor is less than or equal to temperature given threshold, make the fan of the clamping unit where the temperature sensor
Unit is in close state；In detection pattern, keep all fans, all laser emitters and all optical receivers equal
It opens, the detection pattern continues setting time, in the setting time, when there are more than one optical receivers at some
When moment is not received by the optical signal of laser emitter, control wireless communication unit emits the first alarm signal.
Further, the number information of each clamping device of storage makes all in detection pattern in the controller
Fan, all laser emitters and all optical receivers are opened, and the detection pattern continues setting time, are set described
In fixing time, when some optical receiver is when being sometime not received by the optical signal of laser emitter, control is wirelessly communicated
Unit emits the number information of the corresponding clamping device of the optical receiver.
Each clamping device is fixed in the side wall side of wind tower by fixed bracket, so that cable will not shake,
It is more stable.When seated, the support bracket fastened size of each clamping device is not necessarily identical, and it is suitable to can choose
Support bracket fastened size, so that the laser emitter of the fixed block of each clamping device is just aligned above it after installation
The optical receiver of the fixed block of one clamping device.Under normal circumstances, the light that laser emitter issues is just by a light above
Receiver receives, although wind tower in use there is also the shaking of low-angle, due to two neighboring clamping device it
Between distance it is smaller, therefore substantially point-blank, laser emitter issue light just by a light-receiving above
Device receives.But with the increase for using the time, it is easy to appear loosening between fixed bracket and the side wall of wind tower or even falls off, is
It detects whether to devise detection pattern there are such case, in detection pattern, makes all fans (mesh that fan is opened
Be to increase airflow effects, when the side wall that there is fixed bracket and wind tower falling off the case where, gas of the clamping device in fan
Can be shaken under the action of stream, to be more readily detected out that falling off occurs in which clamping device), all laser emitters and institute
Some optical receivers are opened, and the detection pattern continues setting time, in the setting time, when there are more than one
Optical receiver is when being sometime not received by the optical signal of laser emitter, the first alarm of transmitting of control wireless communication unit
Signal.When rather windy due to environment, there is certain shaking in wind tower itself, therefore detection pattern is preferably in the weather of ambient wind very little
In execute.In non-detection mode, since wind energy cable transmission electric power will lead to fever, when temperature is higher, open automatically
Dynamic fan radiates, and avoids heat bring adverse consequences unable to disperse in time.
It is preferred that having 2 elastic washers between each through hole and the detection cable passed through.The annulus cylindrical portion
Vertical through slot have 8；The wind energy cable has 8.The elastomeric pad arc-shaped with a section in each vertical through slot.
All laser emitters are identical, and all optical receivers are identical.
Further, the lower surface of each second stripper plate is connected with compressed spring, and the bottom end of compressed spring is fixed with pressure
Block, the upper surface of plectane are equipped with the pressure sensor squeezed by the briquetting；The detection cable is the pressure sensor
Power supply and transmission signal；Controller is controlled, when the measured value of more than one pressure sensor is less than pressure given threshold
When, so that wireless communication unit is emitted the second alarm signal.
Further, the number information of each clamping device is stored in the controller, controller is controlled, when some
When the measured value of pressure sensor is less than pressure given threshold, wireless communication unit is made to emit the corresponding clamping of the pressure sensor
The number information of device.
The case where being come loose or even fallen off there is also locking nut due to use for a long time, devises pressure sensor,
When locking nut comes loose or falls off, can and alarm.Certainly for the cable of different-diameter, pressure given threshold is different
Sample.
It is preferred that the wind energy cable is exactly above-mentioned cable, the cable successively include from outside to inside oversheath, armor,
Outer fire resistant layer and external insulation layer, the external insulation layer is interior to have support unit, and the support unit includes central tube and 3 sections
Arc-shaped arc unit, the arc unit are the arc-shaped sheet in the section that extends longitudinally along the cable, each arc
Be connected with connection unit between unit and central tube, be fixedly connected with multiple pressure pipes on the outside of the arc unit, it is described in
There is in the heart pipe tension rope, there are 3 cable cores in the external insulation layer, the cable core include from inside to outside conductor,
Inner insulating layer, shielded layer, interior flame-retardant layer and inner sheath.
The utility model has the advantages that cable of the invention, inside set up tension rope, support portion, support portion has multiple compression tubes,
Therefore the tensile resistance of cable is good.And since support portion has multiple arcs unit, to electricity during torsion
Cable core damage inside cable is smaller.
Detailed description of the invention
Fig. 1 is cross-section of cable schematic diagram；
When Fig. 2 is that pressurizing unit is not installed, annulus cylindrical portion, dowel and plectane schematic diagram；
Fig. 3 is that annulus cylindrical portion, dowel with plectane connect schematic cross-section；
When Fig. 4 is that pressurizing unit is installed, clamping device schematic top plan view；
Schematic diagram when Fig. 5 is the second stripper plate extruded cable；
Schematic diagram when Fig. 6 is the first stripper plate extruded cable；
Fig. 7 is that multiple clamping devices and multiple cables cooperate schematic diagram.
Specific embodiment
10 wind energy cables；11 tension ropes；11.1 central tubes；11.2 connection units；11.3 arc unit；11.4 pressure pipes；
12.1 external insulation layers；12.2 outer fire resistant layers；12.3 armors；12.4 oversheaths；13.1 conductors；13.2 inner insulating layers；13.3 screens
Cover layer；13.4 interior flame-retardant layer；13.5 inner sheaths；1 annulus cylindrical portion；1.1 elastomeric pad；1.2 dowel；1.3 plectane；1.4 the
Three through-holes；1.5 locking nut；1.6 first stripper plates；1.7 second stripper plates；1.8 connecting cylinder；1.9 clamping screw；2.1 compression
Spring；2.2 briquetting；2.3 pressure sensor；3 fixed brackets；4 fixed blocks；4.1 laser emitter；4.2 optical receiver；4.3 passing through
Perforation；4.4 elastic washer；6.1 temperature sensor；6.2 blower tray；6.3 fan unit；20 detection cables.
A kind of cable successively includes oversheath 12.4, armor 12.3, outer fire resistant layer 12.2 and external insulation layer from outside to inside
12.1, the external insulation layer is interior to have support unit, and the support unit includes the arc-shaped arc in central tube 11.1 and 3 section
Shape unit 11.3, the arc unit are the arc-shaped sheet in the section that extends longitudinally along the cable, each arc unit and
It is connected with connection unit 11.2 between central tube, multiple pressure pipes 11.4 are fixedly connected on the outside of the arc unit, it is described
There is tension rope 11 in central tube, there are 3 cable cores in the external insulation layer, the cable core includes leading from inside to outside
Body 13.1, inner insulating layer 13.2, shielded layer 13.3, interior flame-retardant layer 13.4 and inner sheath 13.5.
The connection unit has 3, and each connection unit connects 1 arc unit and the central tube, and the connection is single
Member is the sheet extended along cable length direction.3 cable cores and 3 connection unit alternate intervals distributions, the cable
Core wire is relative to arc unit closer to the central tube.The outer fire resistant layer is anti-flammability PVC band.The oversheath and interior shield
Set is made of polythene material.The armor is steel wire armor layer.The pressure pipe has rubber to be made.
Cable of the invention, inside set up tension rope, support portion, support portion has multiple compression tubes, therefore cable
Tensile resistance it is good.And due to support portion have multiple arcs unit, during torsion to cable inside
Cable core damage is smaller.Each cable core has inner insulating layer and interior flame-retardant layer, and the periphery of cable also has outer fire resistant layer
And external insulation layer, therefore whole fire retardant insulating effect is good.During the twisting of cable, even if being turned round at support unit
Turn, the torsion degree of each cable core is also very small, therefore cable can be for a long time by drawing during use in wind tower
It stretches, twist operation, is hardly damaged.
Although the present invention is illustrated and has been described with regard to preferred embodiment, it is understood by those skilled in the art that
Without departing from scope defined by the claims of the present invention, variations and modifications can be carried out to the present invention.
Claims (7)
1. a kind of resistance to wind energy cable with twisting of stretch-proof used for wind power generation, which is characterized in that from outside to inside successively include oversheath, armour
Layer, outer fire resistant layer and external insulation layer are filled, there is support unit in the external insulation layer, the support unit includes central tube and 3
The arc-shaped arc unit in a section, the arc unit are the arc-shaped sheet in the section that extends longitudinally along the cable, often
It is connected with connection unit between a arc unit and central tube, is fixedly connected with multiple pressure pipes on the outside of the arc unit,
There is tension rope in the central tube, there are 3 cable cores in the external insulation layer, the cable core includes from inside to outside
Conductor, inner insulating layer, shielded layer, interior flame-retardant layer and inner sheath.
2. the resistance to wind energy cable with twisting of stretch-proof used for wind power generation according to claim 1, which is characterized in that the connection is single
Member has 3, and each connection unit connects 1 arc unit and the central tube, and the connection unit is along cable length side
To the sheet of extension.
3. the resistance to wind energy cable with twisting of stretch-proof used for wind power generation according to claim 2, which is characterized in that 3 cables core
Line and the distribution of 3 connection unit alternate intervals, the cable core is relative to arc unit closer to the central tube.
4. the resistance to wind energy cable with twisting of stretch-proof used for wind power generation according to claim 1, which is characterized in that described outer fire-retardant
Layer is anti-flammability PVC band.
5. the resistance to wind energy cable with twisting of stretch-proof used for wind power generation according to claim 1, which is characterized in that the oversheath
It is made with inner sheath of polythene material.
6. the resistance to wind energy cable with twisting of stretch-proof used for wind power generation according to claim 1, which is characterized in that the armor
For steel wire armor layer.
7. the resistance to wind energy cable with twisting of stretch-proof used for wind power generation according to claim 1, which is characterized in that the pressure pipe
There is rubber to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766822.9A CN109003722B (en) | 2018-07-13 | 2018-07-13 | Stretch-resistant and torsion-resistant wind energy cable for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766822.9A CN109003722B (en) | 2018-07-13 | 2018-07-13 | Stretch-resistant and torsion-resistant wind energy cable for wind power generation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109003722A true CN109003722A (en) | 2018-12-14 |
| CN109003722B CN109003722B (en) | 2020-11-20 |
Family
ID=64600146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810766822.9A Active CN109003722B (en) | 2018-07-13 | 2018-07-13 | Stretch-resistant and torsion-resistant wind energy cable for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109003722B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109949979A (en) * | 2019-02-25 | 2019-06-28 | 高邮市鼎天高分子材料有限公司 | A kind of high fire-retardance high-insulativity pressure resistance cable |
| CN110504066A (en) * | 2019-09-03 | 2019-11-26 | 安徽凌宇电缆科技有限公司 | A kind of anti-interference low-smoke non-halogen flame-retardant of intelligence can load monitoring type midium voltage cable |
| CN111755150A (en) * | 2020-07-13 | 2020-10-09 | 安徽渡江电缆集团有限公司 | Flat type torsion-resistant silicone rubber cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110504066A (en) * | 2019-09-03 | 2019-11-26 | 安徽凌宇电缆科技有限公司 | A kind of anti-interference low-smoke non-halogen flame-retardant of intelligence can load monitoring type midium voltage cable |
| CN111755150A (en) * | 2020-07-13 | 2020-10-09 | 安徽渡江电缆集团有限公司 | Flat type torsion-resistant silicone rubber cable |
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|---|---|
| CN109003722B (en) | 2020-11-20 |
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