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A steel pipe lightning protection device controlled based on aerodynamic shape

A technology of aerodynamic shape and lightning protection device, which is applied in the installation of cables, electrical components, installation of lighting conductors, etc., can solve the problem of not disclosing the aerodynamic shape of the steel tube lightning rod, and achieve the effect of enhancing the vortex vibration control effect, the principle is clear, and the structure is reasonable.

Active Publication Date: 2020-01-03
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The prior art does not disclose a device for controlling the aerodynamic shape of a steel pipe lightning rod

Method used

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  • A steel pipe lightning protection device controlled based on aerodynamic shape
  • A steel pipe lightning protection device controlled based on aerodynamic shape
  • A steel pipe lightning protection device controlled based on aerodynamic shape

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Embodiment Construction

[0032] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0033] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention provides a pneumatic shape based and controlled steel pipe lightning protection device, comprising a steel pipe lightning needle vertically mounted on the upper surface of an object to be protected; a plurality of holding hoops mounted at intervals from the bottom to the top of the steel pipe lightning needle to allow the installation of spoilers; and a plurality of spoilers mounted on each holding hoop of the plurality of holding hoops. The spoilers are provided with scattered vortex holes, and the spoilers with scattered vortex holes are used to reduce wind pressure and to suppress the occurrence of vortex-induced vibration. According to the technical schemes of the invention, the basic principle of pneumatic shape can be changed. The scattered vortex holes on spoilers, on one hand, increase the suppression effect on vortex induced vibration, and on the other hand, reduce the increase in wind pressure on the spoilers themselves.

Description

technical field [0001] The invention relates to the field of disaster prevention and mitigation of power transmission and distribution equipment, and more specifically, to a steel pipe lightning protection device controlled based on the aerodynamic shape. Background technique [0002] Steel tube lightning rods in substations are mostly conical members supported by a single cantilever. With the increasing length of steel tube lightning rods, the slenderness ratio continues to increase, resulting in the continuous decrease of critical wind speeds for vortex-induced vibrations of the first and second orders of steel tube lightning rods. Under the condition of common wind speed in nature, the steel pipe lightning rod has cross-wind vortex induced vibration, especially the second-order vortex vibration with large amplitude and high frequency, which can form cumulative loss. In recent years, in Qinghai, Xinjiang, Gansu and other areas where there are many strong winds in the north...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G13/00
CPCH02G13/80
Inventor 张宏杰王旭明韩军科杨风利邢海军吴静
Owner CHINA ELECTRIC POWER RES INST
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