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Recoil device and lightning conductor structure thereof

A technology of lightning protection wires and recoil components, which is applied to the installation of corona discharge devices, cables, and lighting conductors, etc., which can solve the problems of frequent lightning tripping accidents and the inability to ensure the safe operation of transmission lines, and reduce lightning induction The effect of overvoltage, avoiding huge pressure, and improving the lightning resistance level

Inactive Publication Date: 2019-12-03
段小嬿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although lightning protection lines have been erected and conventional lightning protection technical measures have been adopted, lightning tripping accidents still occur from time to time. It can be seen that the existing lightning protection technical measures cannot guarantee the safe operation of transmission lines.

Method used

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  • Recoil device and lightning conductor structure thereof
  • Recoil device and lightning conductor structure thereof
  • Recoil device and lightning conductor structure thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A recoil device such as figure 1 As shown, it includes n air-termination assemblies 3 and n+1 recoil assemblies 5, wherein n is a positive integer greater than or equal to 1, and n+1 recoil assemblies 5 are connected in turn to form a multi-stage recoil assembly, and the air-termination assembly 3 is arranged at the joint of two recoil components 5, and closes one end of the inner pipe of the recoil component 5, and the recoil component 5 at the bottom of the lightning receptor component 3 is provided with a recoil nozzle 4 to communicate with the outside. The number of the recoil assembly 5 is determined according to the level of the concrete transmission voltage, and the quantity of the recoil device is different according to the lightning in different regions.

[0058] The arc strike assembly 1 is used to introduce the arc, and then the arc enters the recoil assembly 5. After the recoil, part of the arc direction is reversed, and the recoil function is the lightning-...

Embodiment 2

[0061] The n+1 recoil assemblies 5 each include several skirts 6 and recoil pipes 7, the recoil pipe 7 is arranged as a hollow structure in the middle, and several skirts 6 are arranged on the outside of the recoil pipe 7.

[0062] The recoil pipe 7 is made of high-strength high-temperature-resistant and high-pressure-resistant non-conductive materials, and the high-strength high-temperature and high-pressure resistant non-conductive materials adopt alloy ceramics, rare earth ceramics, graphene-ceramic composite materials, organic ceramics, synthetic silicone rubber, organic Any one of insulating materials, alloy glass, rare earth glass, graphene glass, and plexiglass. The above-mentioned materials have the characteristics of high arc extinguishing threshold, and are made of non-conductive materials with high strength, high temperature and high pressure resistance, so that the burning temperature is higher.

[0063] Several circular skirts 6 have different radii and are arrang...

Embodiment 3

[0065] The n lightning-termination components 3 are all set as conductive electrodes, and the structure of the upper end of the conductive electrodes is the same as that of the internal hollow structure of the recoil component 5, and the bottom of the closed recoil component 5, and the bottom structure of the conductive electrodes is set as a downward cone. shaped or arc-shaped structures.

[0066] Lightning-termination assembly 3 is a cone structure, a hemispherical structure, a circular truncated structure or several cone-shaped structures are fixed at the bottom of the circular plate, and the lightning-termination assembly 3 is made of conductive material. The above-mentioned structure is arranged so that when the arc impacts on the lightning-termination assembly 3, it is convenient to transfer the arc to the recoil tube of the next stage, so that this part of the arc enters the next recoil assembly 5. All the above-mentioned structures have the effect of guiding the arc, s...

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Abstract

The invention discloses a recoil device and a lightning conductor structure thereof, and belongs to the technical field of lightning protection and arc extinguishing. The recoil device comprises n lightning receiving components and n+1 recoil components, wherein n is a positive integer larger than or equal to 1, the n+1 recoil components are sequentially connected to form a multi-stage recoil component, the lightning receiving component is arranged at the joint of the two recoil components and seals one end of a through pipe in each recoil components, and a recoil nozzle is arranged on the recoil components at the bottom of the lightning receiving components and communicates with the outside. According to the invention, a series connection mode of a plurality of recoil pipes is used, so that the discharge allowance flowing through the lightning conductor is smaller, and the protection strength of the lightning conductor is better; through recoil, the discharge allowance is reduced, thelightning stroke induced overvoltage is reduced, the recoil pipe performs recoil injection on most of the electric arcs, and a small part of the electric arcs are discharged into the ground through the lightning conductor, so that the effect of protecting the power transmission line is achieved.

Description

technical field [0001] The invention relates to the technical field of lightning protection and arc extinguishing, in particular to a recoil device and a lightning protection wire structure thereof. Background technique [0002] According to my country's electric power industry standard DL / T620-1997 "Overvoltage Protection and Insulation Coordination of AC Electrical Installations", different protection methods are adopted for lines with different voltage levels. In order to protect transmission lines from being affected by lightning strikes, lightning protection lines are generally used for protection. The lightning conductor, also known as the overhead ground wire, is generally erected on the top of the tower. Although the lightning protection line plays a certain role in line protection, the disadvantages of the lightning protection line are still obvious, and there are still many lightning trips on the transmission line. [0003] According to the statistical results of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T1/02H01T19/00H02G13/00
CPCH01T1/02H01T19/00H02G13/80
Inventor 王巨丰吴敏王锟王嬿蕾彭斐杨倩颖张奇星王国锋李心如张清河徐宇恒庞智毅唐佳雄郭克竹段小嬿
Owner 段小嬿
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