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Annular multi-split vibration-damping galloping preventer

A multi-split, anti-dancing device technology, applied in the field of transmission line galloping research, can solve problems such as threats to the safe operation of transmission lines, economic losses, and hardware damage, so as to prolong service life, suppress vibration amplitude, and reduce torsion and vibration degree of effect

Active Publication Date: 2015-08-12
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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AI Technical Summary

Problems solved by technology

[0003] In ultra-high voltage multi-split conductor transmission lines, galloping is usually accompanied by the alternating torsion and vibration of the conductor around the axis. In several test bases, through the observation and analysis of galloping damage examples of ice-coated multi-split conductors, more It is because the torsion and vibration during galloping lead to the breakage of the wire and the damage of the fittings, resulting in major economic losses and a serious threat to the safe operation of the transmission line

Method used

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  • Annular multi-split vibration-damping galloping preventer

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0019] Such as figure 1 As shown, the annular multi-split vibration damping and dance preventer of the present invention includes a closed annular pipe 7, a plurality of wire clamps 1 are arranged on the outer surface of the annular pipe 7, and a damping and shock absorption system is arranged inside the annular pipe 7, and The annular pipe 7 is filled with an antifreeze and anticorrosion liquid 6 . The annular pipe 7 is used to support and fix the wire clamp 1, and provides a setting space for the damping and shock absorbing system. Ring pipe 7 can adopt metal ring pipe to ensure that the present invention has sufficient strength and hardness, and can work stably for a long time. The wire clamp 1 is used to fix the power transmission wire, and can play the role of a spacer for separating the wires simultaneously. In this embodiment, a plurality of wire clamp...

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Abstract

The invention discloses an annular multi-split vibration-damping galloping preventer which comprises a closed annular tube. The external surface of the annular tube is provided with a plurality of lead clamps. The annular tube is internally provided with a vibration damping system. Furthermore antifreezing and anti-corrosion liquid is filled in the annular tube. According to the annular multi-split vibration-damping galloping preventer, integrated design of a spacer rod a multi-split galloping preventer is realized. The vibration damping system which is arranged in the closed annular tube can restrain the vertical vibration amplitude of the lead to a certain extent by means of self weight for preventing an overlarge tension load of the lead because of excessive deformation of the lead on one hand; and on the other hand, the vibration damping system can generate resonance before a power transmission lead for consuming system energy, thereby reducing torsion and vibration degrees, and prolonging service life of a lead system. Through reducing torsion amplitude of the multi-split lead in galloping, the annular multi-split vibration-damping galloping preventer has functions of effectively restraining vibration amplitude, improving a lead operation environment, and prolonging service life of the lead.

Description

technical field [0001] The invention relates to the research field of galloping of power transmission lines, in particular to an annular multi-split vibration-reducing and galloping-proof device. Background technique [0002] As the scale of the power grid continues to increase, the level of transmission voltage is getting higher and higher. How to effectively, safely and reliably improve the transmission capacity is a major problem facing my country's power grid. At present, in order to meet the current situation of increasing transmission capacity, reduce corona loss and corona interference, and ensure the economy and reliability of transmission lines, multi-split conductors are widely used in overhead transmission lines, and the problem of galloping damage of split conductors has become a problem. Key issues that affect the safe operation of the power grid. [0003] In ultra-high voltage multi-split conductor transmission lines, galloping is usually accompanied by the al...

Claims

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Application Information

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IPC IPC(8): H02G7/14
CPCH02G7/14
Inventor 李清张研韩林方浩铭张博李梦丽吕中宾张子明杨晓辉魏建林任欢刘博任鹏亮马德英
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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