Herringbone column power transformation frame steel tube lightning rod capable of alleviating wind-induced vibration

Abstract

The invention discloses a herringbone column power transformation frame steel tube lightning rod capable of alleviating wind-induced vibration. The herringbone column power transformation frame steeltube lightning rod comprises a herringbone column, wherein a substrate is fixedly mounted on the top of the herringbone column; the upper part of the substrate is connected with a flange plate througha bolt; a lightning rod tube body is arranged at the center of the flange plate; a plurality of reinforcing ribs are uniformly distributed on the external circumference of the bottom of the lightningrod tube body; and a spiral flow guide plate is arranged on the surface of the lightning rod tube body. According to the device, the reinforcing ribs are uniformly arranged on the external circumference of the bottom of the lightning rod tube body, so that the rigidity of a nodal region, connected with the flange plate, of the tube body can be effectively improved, and the destroy of the nodal region caused by the effect of wind-induced vibration is reduced; crossed stiffening ribs are arranged inside the lightning rod tube body, so that the rigidity of the tube body can be improved, and thewind-induced vibration of the tube body is reduced; the spiral flow guide plate is arranged on the surface of the lightning rod tube body, so that the track of coming wind can be disturbed, an eddy with stable frequency cannot be formed, and then vortex-induced vibration of the lightning rod tube body is effectively inhibited.

Description

technical field [0001] The invention relates to the technical field of lightning rods, in particular to a steel pipe lightning rod for reducing wind-induced vibration. Background technique [0002] Domestic 500kV, 330kV, 220kV and 110kV outdoor substation structures generally adopt steel pipe herringbone column structure, and the lightning rods set on the upper part are all of single steel pipe structure. Large swing, under long-term action, the steel pipe of the lightning rod and the connecting bolts, welds, etc. are prone to fatigue, which eventually leads to the reduction of the strength of the lightning rod and damage to the ring. Contents of the invention [0003] The object of the present invention is to provide a steel pipe lightning rod for reducing wind-induced vibration, so as to solve the problems raised in the above-mentioned background technology. [0004] The invention provides a steel pipe lightning rod with a herringbone column transformer structure for re...

AI Technical Summary

Problems solved by technology

[0002] Domestic 500kV, 330kV, 220kV and 110kV outdoor substation structures generally adopt steel pipe herringbone column structure, and the lightning rods set on the upper part are all of single steel pipe structure. Large swing, under long-term action, the steel pipe of the lightning rod and the connecting bolts, welds, etc. are prone to fatigue, which eventually leads to the reduction of the strength of the lightning rod and damage to the ring.

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