一种仿生抗冲蚀架空导线

Bionic anti-erosion overhead conductor

Abstract

本发明公开了一种仿生抗冲蚀架空导线,是在导线的绝缘材料外表面的纵长方向上设置有仿生V型槽结构和仿生凸包结构,仿生V型槽结构在绝缘材料上圆周分布;相邻仿生V型槽结构之间的凸棱上分布仿生凸包结构。仿生V型槽结构的截面为等边三角形,仿生凸包结构的截面为半圆形。在材料表面设置仿生V型槽结构和仿生凸包结构,能够改变导线绝缘材料外表面的气/固两相流的流动状态,减小固体颗粒撞击绝缘材料表面的次数,并且由于仿生V型槽结构内部、相邻仿生凸包结构之间的界面处的空气垫的作用,减小固体粒子碰撞速度进而降低固体粒子撞击导线表面的动能从而使得导线在不同粒径固体颗粒的冲蚀下冲蚀率降低,提高了导线的抗冲蚀性能。
The invention discloses a bionic anti-erosion overhead conductor. Bionic V groove structures and bionic bump structures are arranged on the outer surface of the insulating material of the conductor in the longitudinal direction. The bionic V groove structures are distributed circumferentially on the insulating layer. The bionic bump structures are distributed on the ribs between adjacent bionic V groove structures. The cross section of each bionic V groove structure is an equilateral triangle, and the cross section of each bionic bump structure is a semicircle. By arranging the bionic V groove structures and the bionic bump structures on the surface of the material, the flow state of the gas-solid two-phase flow on the outer surface of the insulating material of the conductor can be changed, and the number of times that solid particles hit against the surface of the insulations material can be reduced. Under the action of air cushions inside the bionic V groove structures and at the interfaces between adjacent bionic bump structures, the collision speed of solid particles is reduced, the kinetic energy of solid particles for hitting against the surface of the conductor is reduced, and therefore, the erosion rate of the conductor under erosion of solid particles of different diameters is reduced, and the erosion resistance of the conductor is improved.

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