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Wire clamp spacer ring damping device

The technology of a damping device and a spacer ring is applied in the field of ice-coated conductor galloping control devices, which can solve the problems of insufficient energy consumption and achieve the effects of strong energy consumption and high sensitivity

Inactive Publication Date: 2020-05-08
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, the galloping control devices used for multi-split conductors include wire clip spacer rings, detuned pendulums, double pendulum anti-dance devices, etc. These devices mainly control the occurrence of galloping by restraining the mutual movement of conductors, changing the inherent properties or aerodynamic characteristics of conductors (such as Separating the vertical and torsional frequencies of the wires, increasing the galloping critical wind speed), but the energy dissipation capacity is insufficient

Method used

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  • Wire clamp spacer ring damping device
  • Wire clamp spacer ring damping device
  • Wire clamp spacer ring damping device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 , 2 As shown, a wire clamp spacer ring damping device is arranged on the high-voltage power transmission split wire, including a spacer ring 4 and a plurality of wire clamp rings 1, and the wire clamp ring 1 is surrounded by a spring connecting rod 2 around the spacer ring 4, and the split wire 5 Pass through the cable clamp ring 1.

[0031] The device is mounted parallel to the split wire cross-section.

[0032] The outside of the spring connecting rod 2 is covered with a spring sleeve 3, and the spring sleeve 3 is used to protect the spring connecting rod 2 and alleviate the corrosion of the spring under natural conditions.

[0033] As a preferred option, the spring sleeve 3 is made of plastic material.

[0034] The spring connecting rod 2 has a certain axial stiffness and a certain lateral stiffness. The axial stiffness and lateral stiffness are set according to the quality of the wire system and the vibration frequency of the three directions. Th...

Embodiment 2

[0041] Different from Embodiment 1, the spacer ring 4 is a square, which is suitable for four-split wires. All the other are identical with embodiment 1.

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Abstract

The invention relates to a wire clamp spacer ring damping device, which is arranged on a high-voltage power transmission split conductor and comprises a spacer ring (4) and a plurality of wire clamp rings (1), wherein the wire clamp rings (1) surround the spacer ring (4) through spring connecting rods (2), and the split conductor (5) penetrates through the wire clamp rings (1). Compared with the prior art, the device not only can give play to the constraint advantage of the wire clamp spacer ring on each sub-conductor, but also can have a corresponding tuned mass damper for each sub-conductorto consume the energy of the galloping of the sub-conductor through the traction of the spring connecting rods. When the split conductor gallops at different amplitudes, the elongation of the spring connecting rods can be adjusted in a linkage manner, so that the damping force with corresponding strength is provided, and the follow-up energy consumption is realized.

Description

technical field [0001] The invention relates to a galloping control device for ice-coated wires, in particular to a wire clamp spacing ring damping device. Background technique [0002] Under the extreme weather conditions of continuous low temperature and freezing rain and snow, ice is easy to form on high-voltage transmission lines. Under the action of certain wind and ice, a low-frequency (0.1-3Hz) and high-amplitude (5-300 times the wire diameter) vibration will occur in the wire. The large dance of the wires is likely to cause flash welding between the wires, damage and fall off of the connecting hardware, and even cause disconnection, collapse of the tower and paralysis of the power transmission system. In order to ensure the normal operation of transmission lines, the galloping control of ice-coated conductors has important social value and practical significance. [0003] With the development of high-voltage transmission technology, in order to meet greater transmi...

Claims

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Application Information

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IPC IPC(8): H02G7/14H02G7/12
CPCH02G7/125H02G7/14
Inventor 彭勇波郭兴辰陈建兵
Owner TONGJI UNIV