WO2016086694A1 - 一种音阶式阻尼线 - Google Patents

一种音阶式阻尼线 Download PDF

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WO2016086694A1
WO2016086694A1 PCT/CN2015/088550 CN2015088550W WO2016086694A1 WO 2016086694 A1 WO2016086694 A1 WO 2016086694A1 CN 2015088550 W CN2015088550 W CN 2015088550W WO 2016086694 A1 WO2016086694 A1 WO 2016086694A1
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damper
scale
wire
line
clamp
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PCT/CN2015/088550
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English (en)
French (fr)
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王景朝
高渊
万建成
尹泉
刘臻
曹道珍
齐翼
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国家电网公司
中国电力科学研究院
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Publication of WO2016086694A1 publication Critical patent/WO2016086694A1/zh

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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

Definitions

  • the present invention relates to a damper wire, and more particularly to a gradation damper wire for preventing overhead transmission line wire/ground wire/OPGW breeze vibration.
  • Breeze vibration is one of the important factors threatening the safe operation of UHV transmission lines, and it is a problem that must be highly valued by the line design, construction and operation management departments. Long-term breeze vibrations are likely to cause damage or even failure of various components of the transmission line (grounding wires, fittings, etc.), which seriously threaten the safe operation of transmission lines. Therefore, effective measures must be taken to prevent and control the breeze vibration of the guide (ground) line and the OPGW.
  • the anti-vibration of the guide (ground) line and the OPGW is usually realized by selecting and installing a suitable anti-vibration device based on factors such as the vibration form, the occurrence mechanism, and the vibration characteristics.
  • Overhead line Breeze vibration is an overhead line vibration mainly caused by wind in the vertical direction.
  • the vibration frequency is 3 to 120 Hz, and the amplitude is on the order of the diameter of the overhead line.
  • the wind speed causing such vibration is usually in the range of 0.5 to 10 m/s, so it is called a breeze vibration.
  • Breeze vibration exceeding the allowable amplitude easily leads to the occurrence of fatigue line breakage of the overhead line, wear of the fittings and fatigue of the tower and fatigue damage, and even the disconnection of the overhead line, which seriously threatens the safe operation of the transmission line.
  • the vibration fatigue of the overhead line is the result of the cumulative action of vibration.
  • the vibration strength of the overhead line is generally measured by the dynamic bending strain. It is generally believed that when the strain does not exceed a certain value, the overhead line will not break during the entire life cycle. This value is the allowable value of the dynamic bending strain.
  • the anti-vibration device is an anti-vibration component that is installed on the wire to prevent the wire from being fatigued and broken by the breeze.
  • the anti-vibration principle of most anti-vibration devices is to convert the vibration energy into heat energy or sound energy to dissipate, thereby reducing the amplitude of the wire.
  • the commonly used anti-vibration devices mainly include anti-vibration hammers, guard lines, damper lines, anti-vibration whip, etc. Among them, anti-vibration hammers are available in various types.
  • the large span anti-vibration transmission line large-span project is an important part of the line. It has the characteristics of large span, high suspension point and wide open water surface. It is easy to form laminar wind on the surface of the water, which causes the wind speed of the grounding line to be wider. The wind energy absorbed by the ground wire is much larger than that of the ordinary line, and its vibration level is much higher than that of the ordinary line. The road, and the ground wire is vibrating almost every moment. Therefore, the large spanning grounding wire anti-vibration device is usually complicated and requires special research and design.
  • the large span anti-vibration scheme type; the anti-vibration scheme of the large span conductor mainly includes Bate damper line, Bate damper line + anti-vibration hammer, double Bate damper line, cross damper line, anti-vibration hammer combination, Christmas tree damper line and so on.
  • the characteristics of various anti-vibration schemes are shown in Table 1.
  • the basic principle of these anti-vibration devices is to change the vibration mode of the wire, and to consume the vibration energy of the system through its own vibration, thereby reducing the level of breeze vibration of the wire.
  • the anti-vibration scheme of Bate damper line and anti-vibration hammer combination is the most widely used in China.
  • the design method of the large-span anti-vibration scheme because the breeze vibration is a strong nonlinear problem, coupled with the dispersion of the performance of the wire, the simple theoretical analysis and calculation is insufficient and accurately determine the anti-vibration scheme of the wire,
  • the final anti-vibration scheme should be determined by a simulation test.
  • the purpose of the anti-vibration test is to reduce the breeze vibration level of the ground wire below the allowable strain by the test to optimize the anti-vibration scheme that meets the technical requirements, so that the ground wire will not break due to the breeze vibration during the whole service life. accident.
  • the anti-vibration test mainly includes the following aspects.
  • the self-damping of the self-damping test wire is a measure of the energy consumption of the material itself. It is related to the material, structure, tightness and tension of the wire. The self-damping difference between different wires is large and needs to be determined by experiments.
  • the self-damping characteristic test uses the power method, and the measured frequency range covers the breeze vibration. Frequency Range.
  • the self-damping formula is obtained by processing the self-damping test data to provide a basis for calculating the vibration intensity.
  • Anti-vibration hammer characteristic test As an anti-vibration component, the anti-vibration hammer mainly relies on the friction between the strands of the steel strand to consume the energy of the wind input wire, thereby reducing the vibration level of the wire.
  • the main purpose of the anti-vibration hammer characteristic test is to measure the resonant frequency of the anti-vibration hammer and its energy consumption level at each resonant frequency, which provides a basis for the anti-vibration scheme design.
  • Anti-vibration scheme test and preferred anti-vibration scheme adopt the joint anti-vibration measures of Bate damper line + anti-vibration hammer.
  • the anti-vibration scheme selects the combination of laces of different lengths, so that it has good energy dissipation and vibration damping in the whole breeze vibration frequency range, and focuses on the main vibration frequency range.
  • the middle side (outer side) small lace is stripped, which can reduce the weight of the outer lace and reduce the dynamic bending strain value of the wire at the lace clip.
  • the response frequency of the lace can be changed to improve the anti-vibration scheme. Frequency response characteristics.
  • the anti-vibration hammer is installed in the big lace to strengthen the low-frequency anti-vibration effect of the anti-vibration scheme.
  • the joint use of the anti-vibration hammer and the damper line can optimize the performance of the whole anti-vibration scheme.
  • the initial plan should be tested and improved on the test file, and finally recommended to the project than the selected best solution.
  • the anti-vibration scheme of the split conductor also requires a review test on the split conductor.
  • the breeze vibration of the actual line of the breeze vibration field measurement is not completely consistent with the indoor simulation test.
  • the on-site vibration measurement is carried out after the line is put into operation.
  • the vibration meter is installed at the main clamping point, and the vibration monitoring data is continuously monitored for a certain period of time to obtain the breeze vibration data in the vibration measurement period.
  • the data is processed to obtain the level of the wire breeze vibration, and the wire is determined. Whether the breeze vibration is within the allowable range.
  • the present invention provides a scale-type damper wire, which not only can provide a stable grip, but also can effectively protect the overhead line; can meet the transmission line above 35kV, especially the wire/ground wire in the UHV transmission line/ OPGW's low frequency, medium frequency and high frequency anti-vibration requirements, anti-vibration coverage frequency, The energy consumption effect is remarkable, and the anti-vibration effect is outstanding.
  • the present invention provides a scale-type damper line for preventing the overhead line 3 in an overhead transmission line from vibrating due to a breeze, and the improvement is that the scale-type damper line is separately disposed in the
  • the side damper clip 1 and the scale damper clip 4 on the overhead line 3 are respectively fixedly disposed at the ends of the overhead line 3, and the scale damper clips 4 are spaced apart at the side damper clip 1
  • a damper line 2 is respectively disposed.
  • the scale damping clamp 4 has a "Y" shape, and includes a clip body 410 disposed in the same plane and a clip body 412 of a “V” shape; "V" of the clip body 412
  • the angle of the angle of the clip, the angle between the clip body 410 and the clip body 412 are both 120 degrees.
  • the connecting end of the clip body 410 is vertically disposed with a cross shaft 408, and the gap of the cross shaft 408 is provided with a rubber post 407.
  • the connecting end of the clip body 412 is provided with a flange bolt 410 matching the cross shaft 408.
  • the end of the clip body 410 and the clip body 412 are respectively provided with a first chuck 401, a second chuck 402 and a third chuck 403; the first chuck 401 and the second chuck 402
  • the first wire crimping cover 405 and the second wire crimping cover 411 are respectively disposed.
  • a rubber gasket is disposed between the first chuck 401 and the first wire crimping cover 405, and between the second chuck 402 and the second wire crimping cover 411.
  • the first chuck 401 is provided with a clip hinge pin 404 and a stop pin 406.
  • damper lines 2 disposed between the two adjacent scale damping clamps 4 are respectively located on opposite sides of the overhead line 3.
  • damper line 2 disposed between the damper line clamp 1 and the scale damper clamp 4 and the damper line 2 disposed between the adjacent gradation damper clamps 4 are located on the same side of the overhead line 3.
  • the overhead line 3 is a transmission line conductor or a ground line or an OPGW, and the overhead line 3 outside the side damper clamp 1 is disposed in a suspension clamp or a tensile clamp.
  • the damper wire 2 is a steel core aluminum stranded wire or an aluminum alloy stranded wire or an all-aluminum stranded wire.
  • the spacing between two adjacent scale damping clamps 4 is sequentially decreased.
  • the damper wire 2 disposed between the scale damper clamps 4 is provided with a shockproof hammer.
  • the scale-type damper line provided by the invention has the advantages that the clamp of the line clamp is stable to the overhead line, and the wire is prevented from being damaged or broken due to excessive pressure of the clamp.
  • the scale-type damper line provided by the invention can meet the transmission line of 35kV or above, especially the low-frequency, medium-frequency and high-frequency vibration-proof requirements of the conductor/ground line/OPGW in the UHV transmission line, and the anti-vibration coverage frequency is wide.
  • the scale-type damper line provided by the invention not only can vertically vibrate energy during resonance, but also can swing energy consumption back and forth, the energy consumption effect is remarkable, and the anti-vibration performance is outstanding.
  • the scale-type damping line provided by the invention has the advantages of simple structure, convenient installation and maintenance, wide application range and broad market prospect.
  • the damper line of the present invention can be selected to adopt different damping lengths to accommodate different resonant frequencies.
  • the scale-type damper line provided by the invention can be appropriately stripped, and the middle side or the outer side of the file can be stripped.
  • the weight of the outer lace can be reduced, and the dynamic strain of the overhead line of the lace line can be reduced.
  • the value on the other hand, can change the response frequency of the lace, improve the frequency response characteristics, and achieve better anti-vibration effect.
  • the scale-type damper line provided by the invention has an anti-vibration hammer installed in the center of the large lace damper line to enhance the low-frequency anti-vibration effect, and the anti-vibration performance is more remarkable through the combined use of the anti-vibration hammer and the scale damping line.
  • Figure 1 Schematic diagram of a front view of a scaled damper line provided by the present invention
  • FIG. 2 is a schematic top plan view of a scaled damper wire provided by the present invention.
  • FIG. 3 is a schematic structural view of a syllable damper clamp provided by the present invention.
  • FIG. 4 is a schematic structural view of a main body of a clip in a syllable damper clamp provided by the present invention
  • FIG. 5 is a schematic structural view of a main body 2 of a clip in a syllable damper clamp provided by the present invention
  • the scale-type damper line provided by the embodiment of the invention is used for preventing the overhead line in the overhead transmission line from vibrating due to the breeze, as shown in FIGS. 1 to 5, including: an edge damper clamp 1, a damper line 2, an overhead line 3, a syllable damper clip 4, a first chuck 401, a second chuck 402, a third chuck 403, a clip hinge pin 404, a first wire crimping cover 405, a stop pin 406, a rubber post 407, a cross shaft 408, The clip body 409, the flange bolt 410, the second thread clamping cover 411, and the clip body 412.
  • the damper line 2 is suspended between the scale damper clamps 4;
  • the overhead line 3 is a power transmission line or a ground line or an OPGW, and is suspended by a suspension clamp or a tensile clamp;
  • the damper line 2 is a steel core aluminum strand or Aluminum alloy stranded wire or all-aluminum stranded wire.
  • the scale damping clamp 4 has a "Y" shape, as shown in FIGS. 3 to 5, and includes a clip body 410 and a “V” shaped clip body 412; a “V” shape of the clip body 412.
  • the angle of the angle, the angle between the clip body 410 and the clip body 412 are both 120°.
  • the clip main body 410 and the clip main body 412 are fixedly coupled by the mutually matching cross shaft 408 and the flange bolt 410 respectively disposed at the joint ends thereof, and the rubber post 407 is disposed in the gap of the cross shaft 408.
  • the first clip 401, the second chuck 402 and the third chuck 403 are respectively disposed at the ends of the clip body 410 and the clip body 412, and the first clip 401 and the second chuck 402 respectively set the first clip
  • the gland 405 and the second wire clamping cover 411 are provided with a rubber gasket between the collet and the gland, and the rubber pad can ensure the stability of the scale damping clamp 4 and the damper wire 2 or the overhead wire 3 are installed.
  • the first collet 401 is provided with a clip hinge pin 404 and a stop pin 406.
  • the spacing between adjacent two scale damping clamps 4 is successively decreased, and the damping lines 2 between the adjacent two scale damping clamps 4 are respectively located on the opposite sides of the overhead line 3; the side damping clamps 1
  • the damper line 2 between the damper line clamp 4 and the damper line 2 adjacent thereto are located on the same side of the overhead line 3; when the damper line 2 vibrates, both the vertical vibration energy of the damper line 2 itself and the syllable around the syllable
  • the elastic damping rotation of the center of the damper clamp 4 is like the balance pendulum of the anti-vibration hammer.
  • the damper line 2 When the damper line 2 coincides with the resonance frequency of the overhead line 3, the damper line 2 can be centered on the center of the scale damping clamp 4, along a certain angle direction. Swing back and forth, dissipating vibration energy to achieve good anti-vibration effect.
  • the damper wire 2 can be properly delaminated, and the middle side (outer side) small lace is stripped.
  • the weight of the outer lace can be reduced, and the dynamic strain of the overhead line of the lace line can be reduced.
  • the value on the other hand, can change the response frequency of the lace to improve the frequency response characteristics of the anti-vibration.
  • an anti-vibration hammer can be installed in the center of the large lace to enhance the low-frequency anti-vibration effect.
  • the anti-vibration performance can be optimized by the combined use of the anti-vibration hammer and the scale damping line 4.
  • the first side damper clamp 1 is mounted on the suspension line clamping line or the tension clamp outlet 1m from the fixed overhead line 3, and the first damper line 2 is mounted on the first side damper clamp 1 at the other end.
  • One end is connected to the second chuck 402 of the first scale damping clamp 4, and the first chuck 401 of the first scale damping clamp 4 is clamped on the overhead line 3, and the second chuck 402 and the second The three collets 403 are located on the same horizontal plane.
  • the first chuck 401 of the first scale damping clamp 4 is locked on the overhead wire 3 by the stopper pin 406 through the first wire clamping cover 405, and the damping wire is nested in the chuck grip of the wire clamp, and then the wire is used.
  • the nip cover is locked by a stop pin.
  • the second damper wire 2 is connected to the third chuck 403 of the first scale damper clamp 4, and the other end is fixed to the third chuck 403 of the second scale damper clamp 4, that is, The second damper line 2 and the first damper line 2 are respectively located on opposite sides of the overhead line 3.
  • the second scale damping clamp 4 is clamped to the overhead wire 3 by the first chuck 401.
  • the third damper wire 2 is connected to the second chuck 402 of the second scale damper clamp 4, and the other end is fixed to the second chuck 402 of the third scale damper clamp 4.
  • the third scale damping clamp 4 is clamped to the overhead line 3 by the first chuck 401, and the third damping line 2 and the second damping line 2 are located on the opposite side of the overhead line 3.
  • the fourth damper line 2, the fifth damper line 2, and the like are equally symmetrically mounted on the opposite side, and the installation manner of the scale damper clamp 4 is unchanged.
  • the last damper line 2 is taken out from the last scale damping clamp 4 and then the same side is fixed on the trailing edge damping clamp 1 to form a complete scale damping line.
  • the first side damper clamp 1 is installed at a distance from the suspension line of the fixed overhead line 3 or the outlet of the tension clamp, and one end of the first damper 2 is mounted on the first side damper clamp 1 The other end is connected to the third chuck 403 of the first scale damping clamp 4, wherein the second chuck 402 of the first scale damping clamp 4 is clamped on the overhead line 3, at this time, the first chuck 401 It is located at the same level as the third chuck 403.
  • the second damper wire 2 is connected to the first chuck 401 of the first scale damper clamp 4, and the other end is fixed to the third chuck 403 of the second scale damper clamp 4, that is, The second damper line 2 and the first damper line 2 are respectively located on opposite sides of the overhead line 3.
  • the second scale damping clamp 4 is clamped to the overhead wire 3 by the second collet 402 and mounted in reverse symmetry with the first scale damping clamp 4.
  • the third damper wire 2 is fixed to the first chuck 401 of the second scale damper clamp 4, and the other end is fixed to the third chuck 403 of the third scale damper clamp 4.
  • the third scale damping clamp 4 is clamped to the overhead line 3 by the second collet 402 and mounted in reverse symmetry with the second scale damping clamp 4.
  • the fourth damper line 2, the fifth damper line 2, and the like are equally symmetrically mounted on the opposite side, and the scale damper clamp 4 is also mounted symmetrically in reverse, that is, symmetrically mounted in the opposite direction to the front, and there is no fixed requirement in the starting direction.
  • the last damper line 2 is drawn from the last scale damper clamp 4 and is fixed on the same side of the trailing end damper clamp 1 to form a complete scale damping line.

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Abstract

一种音阶式阻尼线（2），用于防止架空输电线路中的架空线（3）因微风而振动，音阶式阻尼线包括分别设置在架空线上的边阻尼线夹（1）和音阶阻尼线夹（4），边阻尼线夹分别固定设置在架空线两端，音阶阻尼线夹间隔设置在边阻尼线夹之间，相邻的边阻尼线夹与音阶阻尼线夹之间和音阶阻尼线夹之间分别设置阻尼线，该音阶式阻尼线对导线的握持稳定，避免了导线因压力过大而受损或断股，能满足35kV以上输电线路尤其是特高压输电线路中导线/地线/OPGW的低频、中频和高频的防振要求，防振覆盖频率广，能耗效果显著，防振效果突出。

Description

一种音阶式阻尼线 技术领域
本发明涉及一种阻尼线，具体讲涉及一种用于防止架空输电线路导线/地线/OPGW微风振动的音阶式阻尼线。
背景技术
微风振动是威胁特高压输电线路安全运行的重要因素之一，是线路设计、建设和运行管理部门必须高度重视的问题。长时间的微风振动容易导致输电线路各个组成部分(导地线、金具等)的损伤甚至失效，严重威胁输电线路的安全运行。因此，必须采取有效措施对导(地)线及OPGW的微风振动加以防治。导(地)线、OPGW的防振通常基于振动形式、发生机理、振动特点等因素，选择并安装合适的防振装置来实现。
架空线微风振动是一种由风引起的主要在垂直方向上的架空线振动，其振动频率为3～120Hz，幅值为架空线直径的数量级。引起这种振动的风速通常在0.5～10m/s的范围内，故称为微风振动。超过允许幅值的微风振动容易导致架空线疲劳断股、金具及杆塔构件磨损或疲劳破坏等现象的发生，甚至造成架空线的断线事故，严重威胁输电线路的安全运行。
架空线的振动疲劳断股是振动累积作用的结果，架空线的振动强度一般都用动弯应变来衡量。通常认为，当应变不超过某一定数值时，架空线在整个使用寿命周期内不会发生断股，这个数值就是动弯应变容许值。
防振装置是专门为防止微风振动引起导线疲劳断股，而在导线上安装的一种防振部件。大多数防振装置的防振原理是将振动能量转化为热能或声能而发散掉，从而降低导线的振幅。还有一些防振装置是通过增加导线刚度或提高导线阻尼作用来达到防振的目的。常用的防振装置主要有防振锤、护线条、阻尼线、防振鞭等，其中，防振锤具有多种型式。
大跨越防振输电线路大跨越工程是线路的重要组成部分，具有档距大、悬挂点高、跨越水面开阔等特点，水面上空容易形成层流风，引起导地线振动的风速范围更广，导地线吸收的风能较普通线路大得多，其振动水平也远远高于普通线 路，且导地线几乎每时每刻都在振动。因此，大跨越导地线防振装置通常比较复杂，需要专门研究和设计。
一、大跨越防振方案型式；大跨越导线的防振方案主要有Bate阻尼线、Bate阻尼线+防振锤、双Bate阻尼线、交叉阻尼线、防振锤组合、圣诞树阻尼线等型式。各种防振方案的特点如表1所示，这些防振装置的基本原理都是改变导线的振动模式，通过自身的振动消耗系统的振动能量，从而降低导线的微风振动水平。其中，Bate阻尼线和防振锤组合的防振方案在中国应用最为广泛。
表1：大跨越防振方案特点及应用
Figure PCTCN2015088550-appb-000001
二、大跨越防振方案的设计方法；由于微风振动属于很强的非线性问题，再加上导线在性能上的分散性，单纯的理论分析和计算不足及准确地确定导线的防振方案，最终的防振方案应由模拟试验确定。防振试验的目的就是通过试验优选出满足技术要求的防振方案，将导地线的微风振动水平降到容许应变以下，使导地线在整个使用寿命期间内不致发生微风振动导致的断股事故。防振试验主要包括以下几个方面的内容。
1、自阻尼试验导线的自阻尼是衡量材料自身消耗能量的能力，与导线的材料、结构、绞合紧密程度、张力等有关，不同导线之间的自阻尼差异较大，需要通过试验测定。自阻尼特性试验采用功率法，测量的频率范围覆盖微风振动的 频率范围。通过对自阻尼试验数据进行处理得到自阻尼的公式，为计算振动强度提供依据。
2、防振锤特性试验防振锤作为防振元件，主要靠其钢绞线的股间磨擦来消耗风输入导线的能量，从而降低导线的振动水平。防振锤特性试验的主要目的是测得防振锤的谐振频率及其在各个谐振频率下的耗能水平，为防振方案设计提供依据。
3、防振方案试验与优选防振方案采用Bate阻尼线+防振锤的联合防振措施。考虑不同长度阻尼线花边的频率响应范围，防振方案选择不同长度花边的组合，使其在整个微风振动频率范围内均具有良好的耗能减振作用，并对主要振动频率范围重点防护。档中侧(外侧)小花边进行剥层处理，一方面可以减轻外侧花边的重量，降低花边线夹处导线的动弯应变值，另一方面可以改变该花边的响应频率，改善防振方案的频响特性。同时在大花边中安装防振锤来加强防振方案低频防振效果，通过防振锤和阻尼线的联合使用可使整个防振方案性能达到最佳。初设方案要在试验档上进行试验改进，最终比选出较优的方案推荐给工程使用。分裂导线的防振方案还需要在分裂导线上进行复核试验。
4、微风振动现场测振实际线路的微风振动不可能和室内模拟试验完全相一致，为了解导线的微风振动水平，检验防振装置的效果，有必要对导线的微风振动进行现场实测。现场测振在线路投运后进行，在主要夹固点处安装测振仪，连续监测一定时间，获取测振周期内的微风振动数据，通过对数据进行处理得到导线微风振动的水平，确定导线微风振动是否在容许范围内。
目前阶段我国特高压建设步入快速发展阶段，跨区跨网、远距离、大容量输电以及大截面导线等一系列新技术的推广应用，对输电线路微风振动提出了更高、更严的要求。为适用特高压电网快速发展的需要，对传统大跨越防振方案加以改进和更新显得十分紧迫和必要。
发明内容
为了解决上述问题，本发明提供了一种音阶式阻尼线，不但可以提供稳定的握持，而且可以有效保护架空线；能满足35kV以上输电线路，尤其是特高压输电线路中导线/地线/OPGW的低频、中频和高频的防振要求，防振覆盖频率广， 耗能效果显著，防振效果突出。
本发明的目的是采用下述技术方案实现的：
本发明提供的一种音阶式阻尼线，所述音阶式阻尼线用于防止架空输电线路中的架空线3因微风而振动，其改进之处在于：所述音阶式阻尼线包括分别设置在所述架空线3上的边阻尼线夹1和音阶阻尼线夹4，所述边阻尼线夹1分别固定设置在架空线3两端，所述音阶阻尼线夹4间隔设置在边阻尼线夹1之间；相邻的所述边阻尼线夹1与音阶阻尼线夹4之间和所述音阶阻尼线夹4之间分别设置阻尼线2。
其中，所述音阶阻尼线夹4为“Y”形，包括设置在同一平面的线夹主体一410和为“V”形的线夹主体二412；所述线夹主体二412的“V”形夹角角度、所述线夹主体一410与线夹主体二412的夹角角度均为120°。
其中，所述线夹主体一410的连接端竖直设置十字轴408，所述十字轴408的间隙设置橡胶柱407。
其中，所述线夹主体二412的连接端设置与所述十字轴408相匹配的翻边螺栓410。
其中，所述线夹主体一410和线夹主体二412的末端分别设置第一夹头401、第二夹头402和第三夹头403；所述第一夹头401和第二夹头402分别设置第一线夹压盖405和第二线夹压盖411。
其中，所述第一夹头401与第一线夹压盖405之间、所述第二夹头402与第二线夹压盖411之间分别设置橡胶衬垫。
其中，所述第一夹头401设置线夹铰链销404和挡销406。
其中，相邻的两个所述音阶阻尼线夹4之间设置的阻尼线2分别位于架空线3的异侧。
其中，所述边阻尼线夹1与音阶阻尼线夹4之间设置的阻尼线2和与其相邻的音阶阻尼线夹4之间设置的阻尼线2均位于架空线3的同侧。
其中，所述架空线3为输电线路导线或地线或OPGW，所述边阻尼线夹1外侧的架空线3设置在悬垂线夹或耐张线夹中。
其中，所述阻尼线2为钢芯铝绞线或铝合金绞线或全铝绞线。
其中，相邻的两个所述音阶阻尼线夹4之间的间距依次递减。
其中，设置在所述音阶阻尼线夹4之间的阻尼线2设置防震锤。
与现有技术比，本发明达到的有益效果是：
1、本发明提供的音阶式阻尼线，采用的线夹对架空线的握持稳定，而且避免了导线因线夹压力过大而受损或断股。
2、本发明提供的音阶式阻尼线，能够满足35kV以上输电线路，尤其是特高压输电线路中导线/地线/OPGW的低频、中频和高频的防振要求，防振覆盖频率广。
3、本发明提供的音阶式阻尼线，在谐振时阻尼线不但可以垂直振动耗能，而且可以来回摆动耗能，耗能效果显著，防振性能突出。
4、本发明提供的音阶式阻尼线，结构简单、便于安装维护，适用范围广，具有广阔的市场前景。
5、本发明提供的音阶式阻尼线，根据导线/地线/OPGW的自阻尼特性可以选择采用不同花边长度的阻尼线，以适应不同的谐振频率。
6、本发明提供的音阶式阻尼线，阻尼线可适当剥层，档中侧或外侧小花边进行剥层处理，一方面可以减轻外侧花边的重量，降低花边线夹出架空线的动弯应变值，另一方面可以改变该花边的响应频率，改善频响特性，达到更好的防振效果。
7、本发明提供的音阶式阻尼线，在大花边阻尼线中央安装防振锤来加强低频防振效果，通过防震锤和音阶阻尼线的联合使用可使防振性能更加显著。
附图说明
图1：本发明提供的音阶式阻尼线的正视结构示意图；
图2：本发明提供的音阶式阻尼线的俯视结构示意图；
图3：本发明提供的音节阻尼线夹的结构示意图；
图4：本发明提供的音节阻尼线夹中的线夹主体一的结构示意图；
图5：本发明提供的音节阻尼线夹中的线夹主体二的结构示意图；
其中：1、边阻尼线夹；2、阻尼线；3、架空线；4、音节阻尼线夹；401、第一夹头；402、第二夹头；403、第三夹头；404、线夹铰链销；405、第一线夹压盖；406、挡销；407、橡胶柱；408、十字轴；409、线夹主体一；410、翻边 螺栓；411、第二线夹压盖；412、线夹主体二。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步的详细说明。
本发明实施例提供的音阶式阻尼线，用于防止架空输电线路中的架空线因微风而振动，如图1至5所示，包括：边阻尼线夹1、阻尼线2、架空线3、音节阻尼线夹4、第一夹头401、第二夹头402、第三夹头403、线夹铰链销404、第一线夹压盖405、挡销406、橡胶柱407、十字轴408、线夹主体一409、翻边螺栓410、第二线夹压盖411、线夹主体二412。在架空线3两侧分别安装边阻尼线夹1，在边阻尼线夹1之间的架空线3上间隔安装音阶阻尼线夹4；在相邻的边阻尼线夹1与音阶阻尼线夹4之间以及音阶阻尼线夹4之间分别悬挂阻尼线2；架空线3为输电导线或地线或OPGW，通过悬垂线夹或耐张线夹固定悬挂；阻尼线2为钢芯铝绞线或铝合金绞线或全铝绞线。
其中，音阶阻尼线夹4为“Y”形，如图3至5所示，包括线夹主体一410和为“V”形的线夹主体二412；线夹主体二412的“V”形夹角角度、线夹主体一410与线夹主体二412的夹角角度均为120°。线夹主体一410与线夹主体二412通过分别设置在其连接端的相互匹配的十字轴408和翻边螺栓410固定连接，在十字轴408的间隙设置橡胶柱407。线夹主体一410和线夹主体二412的末端分别设置第一夹头401、第二夹头402和第三夹头403，第一夹头401和第二夹头402分别设置第一线夹压盖405和第二线夹压盖411，在夹头与压盖之间设置橡胶衬垫，橡胶衬垫可以确保音阶阻尼线夹4与阻尼线2或架空线3安装的稳固。第一夹头401设有线夹铰链销404和挡销406。
其中，相邻的两个音阶阻尼线夹4之间的间距依次递减，在相邻的两个音阶阻尼线夹4之间的阻尼线2分别位于架空线3的异侧；边阻尼线夹1与音阶阻尼线夹4之间的阻尼线2和与其相邻的阻尼线2均位于架空线3的同侧；阻尼线2振动时既有阻尼线2本身的垂直振动耗能，又有围绕音节阻尼线夹4中心的弹性阻尼转动，如同防震锤的平衡摆，当阻尼线2与架空线3的谐振频率一致时，阻尼线2能以音阶阻尼线夹4的中心为圆心，沿一定角度方向来回摆动，耗散振动能量，从而达到良好的防振效果。
为达到更好的防振效果，阻尼线2可适当剥层，档中侧(外侧)小花边进行剥层处理，一方面可以减轻外侧花边的重量，降低花边线夹出架空线的动弯应变值，另一方面可以改变该花边的响应频率，改善防振的频响特性。另外也可在大花边中央安装防振锤来加强低频防振效果，通过防震锤和音阶阻尼线4的联合使用可使防振性能达到最佳。
实施例1
第一个边阻尼线夹1安装于距固定架空线3的悬垂线夹护线条或耐张线夹出口1m处，第一条阻尼线2一端安装于第一个边阻尼线夹1上，另一端接在第一个音阶阻尼线夹4的第二夹头402上，第一个音阶阻尼线夹4的第一夹头401夹固在架空线3上，此时第二夹头402与第三夹头403位于同一水平面。第一个音阶阻尼线夹4的第一夹头401通过第一线夹压盖405由挡销406紧锁在架空线3上，阻尼线嵌套在线夹的夹头握槽里，再用线夹压盖通过挡销紧锁。
第二条阻尼线2的一端接在第一个音阶阻尼线夹4的第三夹头403上，另一端同侧固接在第二个音阶阻尼线夹4的第三夹头403上，即第二条阻尼线2与第一条阻尼线2分别位于架空线3的异侧。第二个音阶阻尼线夹4用第一夹头401夹固在架空线3上。
第三条阻尼线2的一端接在第二个音阶阻尼线夹4的第二夹头402上，另一端同侧固接在第三个音阶阻尼线夹4的第二夹头402上。第三个音阶阻尼线夹4用第一夹头401夹固在架空线3上，第三条阻尼线2与第二条阻尼线2位于架空线3的异侧。
第四条阻尼线2、第五条阻尼线2等均异侧左右对称安装，音阶阻尼线夹4的安装方式不变。
最后一条阻尼线2从最后一个音阶阻尼线夹4引出后同侧固定在尾端边阻尼线夹1上，形成一个完整的音阶阻尼线。
实施例2
第一个边阻尼线夹1安装于距固定架空线3的悬垂线夹护线条或耐张线夹出口1m处，第一条阻尼线2的一端安装于第一个边阻尼线夹1上，另一端接在第一个音阶阻尼线夹4的第三夹头403上，其中第一个音阶阻尼线夹4的第二夹头402夹固在架空线3上，此时第一夹头401与第三夹头403位于同一水平面。
第二条阻尼线2的一端接在第一个音阶阻尼线夹4的第一夹头401上，另一端同侧固接在第二个音阶阻尼线夹4的第三夹头403上，即第二条阻尼线2与第一条阻尼线2分别位于架空线3的异侧。第二个音阶阻尼线夹4用第二夹头402夹固在架空线3上，并与第一个音阶阻尼线夹4反向对称安装。
第三条阻尼线2的一端固接在第二个音阶阻尼线夹4的第一夹头401上，另一端同侧固接在第三个音阶阻尼线夹4的第三夹头403上。第三个音阶阻尼线夹4用第二夹头402夹固在架空线3上，与第二个音阶阻尼线夹4反向对称安装。
第四条阻尼线2、第五条阻尼线2等等同样异侧左右对称安装，音阶阻尼线夹4同样反向对称安装，即与前一个反向对称安装，起始方向无固定要求。
最后一条阻尼线2从最后一个音阶阻尼线夹4引出后同侧固定在尾端的边阻尼线夹1上，形成一个完整的音阶阻尼线。
最后应当说明的是：以上实施例仅用以说明本发明的技术方案而非对其限制，所属领域的普通技术人员应当理解，参照上述实施例可以对本发明的具体实施方式进行修改或者等同替换，这些未脱离本发明精神和范围的任何修改或者等同替换均在申请待批的权利要求保护范围之内。

Claims (13)

  1. 一种音阶式阻尼线，所述音阶式阻尼线用于防止架空输电线路中的架空线(3)因微风而振动，其特征在于：所述音阶式阻尼线包括分别设置在所述架空线(3)上的边阻尼线夹(1)和音阶阻尼线夹(4)，所述边阻尼线夹(1)分别固定设置在架空线(3)两端，所述音阶阻尼线夹(4)间隔设置在边阻尼线夹(1)之间；相邻的所述边阻尼线夹(1)与音阶阻尼线夹(4)之间和所述音阶阻尼线夹(4)之间分别设置阻尼线(2)。
  2. 如权利要求1所述的音阶式阻尼线，其特征在于，所述音阶阻尼线夹(4)为“Y”形，包括设置在同一平面的线夹主体一(410)和为“V”形的线夹主体二(412)；所述线夹主体二(412)的“V”形夹角角度、所述线夹主体一(410)与线夹主体二(412)的夹角角度均为120°。
  3. 如权利要求2所述的音阶式阻尼线，其特征在于，所述线夹主体一(410)的连接端竖直设置十字轴(408)，所述十字轴(408)的间隙设置橡胶柱(407)。
  4. 如权利要求3所述的音阶式阻尼线，其特征在于，所述线夹主体二(412)的连接端设置与所述十字轴(408)相匹配的翻边螺栓(410)。
  5. 如权利要求4所述的音阶式阻尼线，其特征在于，所述线夹主体一(410)和线夹主体二(412)的末端分别设置第一夹头(401)、第二夹头(402)和第三夹头(403)；所述第一夹头(401)和第二夹头(402)分别设置第一线夹压盖(405)和第二线夹压盖(411)。
  6. 如权利要求5所述的音阶式阻尼线，其特征在于，所述第一夹头(401)与第一线夹压盖(405)之间、所述第二夹头(402)与第二线夹压盖(411)之间分别设置橡胶衬垫。
  7. 如权利要求6所述的音阶式阻尼线，其特征在于，所述第一夹头(401)设置线夹铰链销(404)和挡销(406)。
  8. 如权利要求5所述的音阶式阻尼线，其特征在于，相邻的两个所述音阶阻尼线夹(4)之间设置的阻尼线(2)分别位于架空线(3)的异侧。
  9. 如权利要求8所述的音阶式阻尼线，其特征在于，所述边阻尼线夹(1)与音阶阻尼线夹(4)之间设置的阻尼线(2)和与其相邻的音阶阻尼线夹(4)之间设置的阻尼线(2)均位于架空线(3)的同侧。
  10. 如权利要求1所述的音阶式阻尼线，其特征在于，所述架空线(3)为输电线路导线或地线或OPGW，所述边阻尼线夹(1)外侧的架空线(3)设置在悬垂线夹或耐张线夹中。
  11. 如权利要求1所述的音阶式阻尼线，其特征在于，所述阻尼线(2)为钢芯铝绞线或铝合金绞线或全铝绞线。
  12. 如权利要求1所述的音阶式阻尼线，其特征在于，相邻的两个所述音阶阻尼线夹(4)之间的间距依次递减。
  13. 如权利要求1所述的音阶式阻尼线，其特征在于，设置在所述音阶阻尼线夹(4)之间的阻尼线(2)设置防震锤。
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CN110048358B (zh) * 2019-04-29 2024-06-07 华北电力科学研究院有限责任公司 一种弱转动阻力的间隔棒的回转线夹

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