CN105449613B - A kind of high-damping type transmission line of electricity aeolian vibration damper - Google Patents
A kind of high-damping type transmission line of electricity aeolian vibration damper Download PDFInfo
- Publication number
- CN105449613B CN105449613B CN201510958631.9A CN201510958631A CN105449613B CN 105449613 B CN105449613 B CN 105449613B CN 201510958631 A CN201510958631 A CN 201510958631A CN 105449613 B CN105449613 B CN 105449613B
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- China
- Prior art keywords
- damper
- steel strand
- strand wires
- damping
- vibration
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The present invention relates to a kind of high-damping type transmission line of electricity aeolian vibration damper, it is hung on the electric wire between high voltage transmission line tower, to prevent conductor vibration, including damper chuck and anti-vibration hammer, damper chuck is clipped on electric wire, described anti-vibration hammer is provided with two, is separately positioned on the both sides of damper chuck, and be fixedly connected respectively by high-damping steel strand wires with damper chuck.Compared with prior art, the present invention has the advantages that to resist aeolian vibration, simple in construction, easily fabricated.
Description
Technical field
The present invention relates to a kind of damper, more particularly, to a kind of high-damping type transmission line of electricity aeolian vibration damper.
Background technology
With developing rapidly for power industry, overhead transmission line is largely built, and power transfer capacity and fed distance are fast
Speed increases, and Large Copacity, remote transmission line of electricity put into operation successively, therefore the safe operation of circuit becomes further important.
In overhead transmission line, wire is the carrier of transmission line of electricity electrical power, is the important composition portion for ensureing safe operation of power system
Point.Because wire is chronically under open field, it is easy to by natural conditions such as wind, rain, ice and snow, thunder and lightning and other
The influence of external condition, easily occurs various accidents.Wherein, the accident that wind shake triggers is most.Under wind action, the wire moment
In vibrational state, according to frequency and the difference of amplitude, the vibration of wire is broadly divided into three kinds:The gentle breeze of high frequency a little shakes
The secondary span vibration of width and waving for low frequency large amplitude in dynamic, intermediate frequency.In three kinds of vibrations, frequency the most occurs for wire aeolian vibration
It is numerous, therefore, aeolian vibration is studied, the most attention that corresponding vibration protection has caused domestic and international scientific worker is found out.
220kV the Changjiang river Zhuankou Great span, positioned at Wuhan upstream, double loop is across river, and across total length 2658.5m, straight line is across river
High 144m, aerial condutor uses C-418 steel strand wires, and aerial earth wire uses the steel strand wires of C 1, using damper weakening scheme.
The Great span nineteen fifty-nine builds up, operation the several years after find lead, ground wire because wind shake is seriously stranded, influence transmission of electricity safety.In May, 1984
New line is all changed, wire uses GLGJJ-580 types, and ground wire still uses C-267 types, and Great span thread-changing engineering cost is very big, institute
Directly or indirectly (power failure) loss caused is extremely serious.
500kV Pingwus line length Jiang great Jun Shan is crossed over, and is built in 1981, tower height 108m, across river away from 1166m, wire label
LHGJT-440, tripartition mode is used across river, and aerial earth wire is added marked as LHGJT 1, vibrationproof scheme using high-damping line
Damper mixing weakening mode.Circuit has found serious vibration after running 2 years, and aerial earth wire damper successively comes off 5, high resistant
Buddhist nun's wire clamp comes off at 8, and aerial earth wire is disconnected 6 strands.Checked by 1987 and find that 2 empty frame ground wires have accumulated disconnected 22 strands, serious prestige rib,
Power transmission sequence safe operation, has to take many remedial measures for this.
The upper customs footpath Huangpu River Great spans of 220kV, build up the sixties, lead, ground wire uses damper weakening mode.Operation
It is middle more to renew wire the beginning of the eighties because wind shake is seriously stranded, marked as HLGJJ-400 type wires, carried out before construction a large amount of
Experimental study.More than several examples we be not difficult to find out that aeolian vibration harm is in China's regional generally existing in the whole nation, although enter
Go substantial amounts of experimental study, take some measures, wind shake harm has been alleviated, but problem does not have thorough solution.
Power transmission line aeolian vibration problem turns into the important research direction of power transmission line mechanics to related vibrationproof strategy.General
In the case of, power transmission line only can not ensure its safety under aeolian vibration, it is necessary to install antivibrator additional by the high-damping of itself.Often
Antivibrator has damper, high-damping line, high-damping conductor spacer, high-damping helix etc..In general line span less (shelves
Away from less than 1000m) in the case of, ideal vibration-isolating effect can just be reached by only installing damper.
According to destruction example and substantial amounts of actual track engineering experience, obtain drawing a conclusion after analysis:
1) aeolian vibration is the most common form of conductor vibration, while being also the main cause for causing transmission line of electricity to damage.
2) destruction of the aeolian vibration to transmission line of electricity has certain disguise, is shaken because aeolian vibration feature is that high frequency is small
Width vibrate, on high voltage overhead lines produced by this vibration, generally with the naked eye can't see, it unlike when electric wire is waved that
Sample is directly perceived.
3) aeolian vibration mainly makes wire produce fatigue and wear-out failure.When wire is using the larger gold utensil of rigidity, example
Such as, suspension clamp, aluminium hydraulic pressed connecting pipe and crimping and tension-resisting clip, it is easy to produce fatigue rupture.And wear-out failure readily occurs in relaxation
The strong point on, for example, the wiring position of insulator.
4) the circuit fatigue accident such as stranded caused by aeolian vibration a, it is desirable to have accumulated time and process.General hair
Now harm is being produced after the stranded or antivibrator of fatigue damages and come off, and at this moment circuit harm is heavier.And lot of examples and
Experiment shows that it is tired stranded that aeolian vibration produces electric wire, and has found not from electric wire appearance since the internal layer of power transmission line sometimes
, this creates a false impression to line walking work.
5) tackling aeolian vibration needs the gold utensil of particular design, such as damper, shield lines, high-damping line, spiral vibration rod,
It can effectively lower stress combination on the pendency point of transmission line of electricity.But vibrationproof utensil is after longtime running,
Its Parameters variation, characteristic aging, anti-vibration property decay, it is difficult to which accurate judge, only by means of live vibration measuring, to grasp vibrationproof effect
Really.
As shown in figure 1, it is Strockbridge dampers that China, which is used for transmission line of electricity gentle breeze antihunting device, at present.
Strockbridge dampers can play the effect of preferable anti-gentle breeze, but not solve fundamentally caused by aeolian vibration
Destruction, particularly wire is tired stranded.As the direction of from present transmission line of electricity to more Gao Gengrou are developed, it is necessary to propose conscientiously
The corrective measure of effective damper.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of transmission of electricity of high-damping type
Circuit aeolian vibration damper.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of high-damping type transmission line of electricity aeolian vibration damper, is hung on the electric wire between high voltage transmission line tower, with to prevent
Only conductor vibration, including damper chuck and anti-vibration hammer, damper chuck is clipped on electric wire, and described anti-vibration hammer is set
There are two, be separately positioned on the both sides of damper chuck, and company is fixed by high-damping steel strand wires and damper chuck respectively
Connect.
Described high-damping steel strand wires include the damper portion of centre and the connecting portion at two ends, and described damper portion is in fusiformis,
Described connecting portion is connected with damper chuck and anti-vibration hammer respectively.
Described damper portion includes core steel strand wires, high-damping rubber and the outer steel strand wires set gradually from inside to outside, described
Core steel strand wires and high-damping rubber coated by outer steel strand wires, described high-damping rubber inner surface and outer surface are equipped with spiral
Connected in star, described core steel strand wires and outer steel strand wires are wrapped in high-damping rubber by spiral groove.
Convex stripe is additionally provided with described groove.
Described core steel strand wires and outer steel strand wires are the multiply list steel strand wires after peeling off, and described connecting portion is hinged for plying
Steel strand wires.
Described anti-vibration hammer is U-shaped tup, and its quality is more than damper chuck.
Compared with prior art, the present invention has advantages below：
First, aeolian vibration is resisted：Original damper, it consumes energy mainly consumes energy by rubs mutually between steel strand wires stock,
Stockbridge damper steel strand wires can be caused to occur severe bends, fatigue is produced, the present invention is embedded into shuttle by the way that the steel strand wires of share split are interted
In the high-damping rubber groove of shape, and it is secondary wring, making that originally the steel strand wires of metal fatigue can not be resisted has tension force high resistant
Buddhist nun acts on, and when anti-vibration hammer carries out anti-vibrational, high-damping rubber can absorb the tension force of multiply list steel strand wires, mitigate and twist
The metal fatigue of line, extenuates steel strand wires destruction situation, fundamentally solves the problem of damper is destroyed, improve damper overall
Power consumption.
2nd, it is simple in construction, easily fabricated：This damper is only twisted comprising damper chuck, anti-vibration hammer and high-damping steel
The part of line three, it is simple in construction, and the preparation method of high-damping steel strand wires is simple, is easy to manufacture and installs.
Brief description of the drawings
Fig. 1 is existing Strockbridge dampers structural representation.
Fig. 2 is damper portion cross-sectional structure figure.
Fig. 3 is the structural representation of high-damping steel strand wires.
Fig. 4 is the structural representation of high-damping rubber.
Fig. 5 is scheme of installation of the invention.
Scheme of installations of the Fig. 6 for the present invention on electric wire.
Wherein, 1, damper chuck, 2, anti-vibration hammer, 3, high-damping steel strand wires, 31, damper portion, 32, connecting portion,
311st, core steel strand wires, 312, high-damping rubber, 313, outer steel strand wires.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment：
As in Figure 2-4, figure is the structural representation of high-damping steel strand wires 3, and damper portion 31 is by the He of high-damping rubber 312
Steel strand wires are constituted, and its middle and outside is all steel strand wires, and centre is high-damping rubber 312.High-damping steel strand wires 3 are by internal core
Steel strand wires 311, the high-damping rubber 312 by inner surface with one layer of groove is wound, and the outer surface of high-damping rubber 312 is also set
The fluted each stock single line that can be used in embedded outer steel strand wires 313.
As shown in figure 5, damper portion 31 and connecting portion 32 are replaced into original steel strand wires, connection damper folder as overall
First 1 and anti-vibration hammer 2.
As shown in fig. 6, figure is scheme of installation of the damper of the present invention on electric wire.
The manufacturing process of high-damping steel strand wires 3 is：An overall high high-damping rubber body compressing first, rubber bodies it is interior
There is the groove suppressed surface and outer surface, and have the convex stripe for preventing that line from sliding in groove, afterwards can be by each stock single line point
Wrap up, be wrapped among the surface groove of high-damping rubber 312 respectively from after, twisted wire and high resistant are made by secondary twisted wire of tightening
Buddhist nun's rubber 312 is closely combined together, it is noted that rubber bodies should not be made to produce initial deformation, then connects damper folder
First 1 and anti-vibration hammer 2.
On the one hand high-damping steel strand wires 3 in the present invention can connect the part of damper chuck 1 of damper, still further aspect
It is the anti-vibration hammer 2 for connecting up-down vibration, damper portion 31 is by nexine core steel strand wires 311, high-damping rubber 312 and outer steel strand wires
Wring shaping 313 2 times, high-damping effect can be produced when under tension, high-damping steel strand wires 3 occur curved by itself
Friction energy-dissipating between bent, stock.During installation, only existing common steel strand wires need to be replaced with into viscous high resistant after high-damping device is set
Buddhist nun's device steel strand wires.This patent has the advantages that rational in infrastructure, easy to manufacture, easy for installation, can be widely used for transmission line of electricity
Aeolian vibration wind resistance, to reach the safe operation for improving transmission line of electricity, the extension of service life.
Claims (4)
1. a kind of high-damping type transmission line of electricity aeolian vibration damper, is hung on the electric wire between high voltage transmission line tower, to prevent
Conductor vibration, including damper chuck (1) and anti-vibration hammer (2), damper chuck (1) are clipped on electric wire, it is characterised in that
Described anti-vibration hammer (2) is provided with two, is separately positioned on the both sides of damper chuck (1), and pass through high-damping respectively
Steel strand wires (3) are fixedly connected with damper chuck (1), described high-damping steel strand wires (3) include middle damper portion (31) and
The connecting portion (32) at two ends, described damper portion (31) is in fusiformis, described connecting portion (32) respectively with damper chuck (1) and
Anti-vibration hammer (2) is connected, and described damper portion (31) includes core steel strand wires (311), the high-damping set gradually from inside to outside
Rubber (312) and outer steel strand wires (313), described core steel strand wires (311) and high-damping rubber (312) are by outer steel strand wires (313)
Cladding, described high-damping rubber (312) inner surface and outer surface are equipped with spiral groove, described core steel strand wires (311)
It is wrapped in outer steel strand wires (313) by spiral groove in high-damping rubber (312).
2. a kind of high-damping type transmission line of electricity aeolian vibration damper according to claim 1, it is characterised in that described
Convex stripe is additionally provided with groove.
3. a kind of high-damping type transmission line of electricity aeolian vibration damper according to claim 1, it is characterised in that described
Core steel strand wires (311) and outer steel strand wires (313) are the multiply list steel strand wires after peeling off, and described connecting portion (32) is hinged for plying
Steel strand wires.
4. a kind of high-damping type transmission line of electricity aeolian vibration damper according to claim 1, it is characterised in that described
Anti-vibration hammer (2) is U-shaped tup, and its quality is more than damper chuck (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958631.9A CN105449613B (en) | 2015-12-18 | 2015-12-18 | A kind of high-damping type transmission line of electricity aeolian vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958631.9A CN105449613B (en) | 2015-12-18 | 2015-12-18 | A kind of high-damping type transmission line of electricity aeolian vibration damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105449613A CN105449613A (en) | 2016-03-30 |
| CN105449613B true CN105449613B (en) | 2017-08-25 |
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ID=55559533
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510958631.9A Expired - Fee Related CN105449613B (en) | 2015-12-18 | 2015-12-18 | A kind of high-damping type transmission line of electricity aeolian vibration damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN105449613B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872041B (en) * | 2017-12-18 | 2024-05-14 | 国网山东省电力公司龙口市供电公司 | Power line damper |
| CN109193535B (en) * | 2018-10-31 | 2020-06-05 | 国网河南省电力公司濮阳供电公司 | High-voltage line anti-deviation cross beam adjustment suspension weight device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227073A (en) * | 2011-03-01 | 2011-10-26 | 东北电力大学 | Damping spring vibration-proof hammer |
| JP2013188063A (en) * | 2012-03-09 | 2013-09-19 | Furukawa Electric Power Systems Co Ltd | Double torsional damper |
| CN103840413A (en) * | 2012-11-20 | 2014-06-04 | 河南省电力公司焦作供电公司 | Special-type antivibration hammer used for optical-cable line |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4977490U (en) * | 1972-10-23 | 1974-07-04 | ||
| JPS6316275Y2 (en) * | 1981-02-12 | 1988-05-10 | ||
| JPS58168825U (en) * | 1982-05-08 | 1983-11-10 | 日立電線株式会社 | bait damper |
-
2015
- 2015-12-18 CN CN201510958631.9A patent/CN105449613B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227073A (en) * | 2011-03-01 | 2011-10-26 | 东北电力大学 | Damping spring vibration-proof hammer |
| JP2013188063A (en) * | 2012-03-09 | 2013-09-19 | Furukawa Electric Power Systems Co Ltd | Double torsional damper |
| CN103840413A (en) * | 2012-11-20 | 2014-06-04 | 河南省电力公司焦作供电公司 | Special-type antivibration hammer used for optical-cable line |
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| Publication number | Publication date |
|---|---|
| CN105449613A (en) | 2016-03-30 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20201218 |