Wind-resistant reinforcing method for lightning arrester of substation framework

A technology for lightning rods and substations, applied in the field of lightning rods, can solve problems such as the increase of wind damage accidents of lightning rods in substations

Inactive Publication Date: 2018-05-01
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, lightning rods are used in many substation transmission lines. However, traditional lightning rods are prone to wind-induced vibration

Method used

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  • Wind-resistant reinforcing method for lightning arrester of substation framework

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Embodiment Construction

[0019] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0020] Such as figure 1 As shown, the embodiment of the present invention provides a wind resistance strengthening method for a substation structure lightning rod, including the following steps:

[0021] (1) prepare a spiral deflector, the spiral height of the spiral deflector is 0.1D-0.25D, and the pitch is 5D, where D is the diameter of the lightning rod steel pipe;

[0022] (2) Weld the spiral deflector on the side of the lightning rod steel pipe;

[0023] (3) Clean the lightning rod steel pipe and the spiral deflector on its side; use a soft wool flat brush or bristle brush to brush the surface of the lightning rod steel pipe and the spiral deflector with anti-rust paint, and the brush width ranges from 9 to 150mm, w...

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Abstract

The invention discloses a wind-resistant reinforcing method for a lightning arrester of substation framework, which comprises the steps of preparing a spiral guide plate, welding the spiral guide plate on the side surface of a lightning arrester steel pipe, cleaning the lightning arrester steel pipe and the spiral guide plate on the side surface of the lightning arrester steel pipe, installing a fixing device at the bottom of the lightning arrester pipe body, transporting a lattice-type steel beam to a position at which the lattice-type steel beam needs to be installed, performing installationfastening on the fixing device at the bottom of the lightning arrester pipe body and the lattice-type steel beam, performing welding reinforcement on the junction of the bottom of the lightning arrester pipe body and the lattice-type steel beam, and carrying out corrosion prevention work on the welding part and reinforcement diagonal bracing. According to the reinforcing method, the crescent ribshaped guide plate is additionally arranged at the outer surface of the built lightning arrester steel pipe in order to relieve across-wind vortex-induced vibration caused by vortex shedding, and connection is performed in a welding mode so as to achieve a purpose of relieving the vortex-induced vibration of a lightning arrester rod, so that the occurrence of a wind destruction accident of the lightning arrester is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of lightning rods, in particular to a wind-resistant reinforcement method for lightning rods in substation structures. Background technique [0002] Lightning protection devices against direct lightning strikes mainly include lightning rods. The lightning protection principle of the lightning rod as a lightning terminal is: the lightning rod is connected to the ground through a wire, and forms an equipotential difference with the ground. Using its own height, the electric field of the lightning cloud whose electric field intensity increases to the limit value is distorted, and begins to ionize and lead downward. Discharge; the lightning rod produces a tip discharge under the action of a strong electric field, forming an upward leading discharge; the two meet to form a lightning path, and then pour into the ground to achieve the lightning protection effect. In fact, the lightning rod is a lightning rod, whic...

Claims

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Application Information

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IPC IPC(8): H02G13/00
CPCH02G13/00H02G13/80
Inventor 王朝华库永恒张劲光王晓辉陈炳华张少锋
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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