A wire dance prevention device
An anti-dancing device and wire technology are applied in the field of transmission lines, which can solve the problems of poor anti-dancing effect, affecting the safety of transmission lines, weak damping effect of wind damping sheets, etc., so as to achieve improved safety and reliability, low cost, and reduced The effect of the chance of dancing
Active Publication Date: 2020-08-04
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology
However, since the turbulent wire is wound on the fixed column, it does not directly produce a turbulent effect on each wire; the damping device is set in a relatively narrow frame, and the damping effect of the wind damping sheet is very small, preventing The dance effect is not good, which directly affects the safety of the transmission line
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The specific embodiment described here is used for the dance prevention device for four-split wires, but it is not limited to the device of the specific embodiment, and is not used to limit the present invention.
[0027] refer to Figure 1 to Figure 5 , a wire anti-dance device according to the present invention, comprising: a damping anti-dance assembly, a turbulence anti-dance assembly and a fixed assembly, the damping anti-dance assembly and the turbulence anti-dance assembly are placed inside the fixed assembly, and the left end of the damping anti-dance assembly It is fixedly connected with the left end of the fixed component, the right end of the damping anti-dance component is fixedly connected with the right end of the fixed component, the left end and the right end of the fixed component are fixedly connected with the wire 7, a...
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The invention relates to a conductor anti-galloping device, which comprises a damping anti-galloping assembly, a flow-disturbing anti-galloping assembly and a fixing assembly, and is characterized inthat the damping anti-galloping assembly and the flow-disturbing anti-galloping assembly are arranged inside the fixing assembly, the left end of the damping anti-galloping assembly is fixedly connected with the left end of the fixing assembly, the right end of the damping anti-galloping assembly is fixedly connected with the right end of the fixing assembly, both the left end and the right end ofthe fixing assembly are fixedly connected with a conductor, and the flow-disturbing anti-galloping assembly is wound on the wire. The damping anti-galloping assembly can automatically compress and stretch according to the galloping of the conductor, the elastic force of a rubber spring can enable the split conductor to be restored to the original position so as to realize the automatic restoration of the split conductor of a transmission line; and the flow-disturbing anti-galloping assembly can generate a flow-disturbing effect on the flow field and change the flow field characteristics around the conductor, and can also avoid resonance between a flow-disturbing line and the conductor, thereby reducing the galloping probability of the transmission line, and improving the safety and reliability of the line. The conductor anti-galloping device has the advantages of reasonable structure, convenient installation, excellent performance, safety, reliability and low cost.
Description
technical field [0001] The invention relates to the technical field of power transmission lines, and is an anti-dance device applied to split conductors of overhead power transmission lines. Background technique [0002] As an important facility for the transmission, regulation and distribution of electric energy in the power system, transmission lines are becoming more and more complicated with the increase of power transmission distance and capacity, which will inevitably make the safe and stable operation of transmission lines more critical. The safe and reliable operation of the power grid is closely related to the transmission line. [0003] Galloping of overhead transmission lines seriously threatens the safe operation of transmission systems. EHV transmission wire galloping is a self-excited vibration with low frequency (about 0.1Hz to 3 Hz) and large amplitude (about 5 times to 300 times the diameter of the transmission line), which forms one or more half waves in t...
Claims
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IPC IPC(8): H02G7/14H02G7/12
CPCH02G7/125H02G7/14
Inventor 刘春城张金龙王晨晖赵雁海
Owner NORTHEAST DIANLI UNIVERSITY
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