Air-gap-free semi-closed double-backflushing arc extinguishing lightning protection device and application thereof

A semi-enclosed lightning protection device technology, applied in the direction of spark gap overvoltage arresters, spark gaps, electrical components, etc., can solve the problem of unsatisfactory arc extinguishing sensitivity, low durability, and arc extinguishing blind spots in multi-chambers And other issues

Pending Publication Date: 2020-10-27
段小嬿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, lightning strike accidents are frequent in areas such as overhead transmission and distribution lines, substations, and power plants. The accidents caused by lightning strikes have brought great challenges to the safe, stable and reliable operation of the power system, and have also brought great challenges to the country's economic development and people's living standards. have a huge impact
How to carry out effective arc extinguishing and lightning protection to improve the safety, stability and reliability of the power system has always been the key research content of the power sector. The existing arc extinguishing and lightning protection methods are mainly through the installation of arc extinguishing and lightning protection in the power system lines However, considering the requirements of lightning protection device technology: safety, effectiveness, durability, economy, and maintenance, it is found that it is difficult to achieve one step at the technical level of the existing lightning protection device. in place
[0003] In this regard, the applicant and related inventors conducted a lot of research on the technical requirements of lightning protection devices, and found that the existing lightning protection de

Method used

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  • Air-gap-free semi-closed double-backflushing arc extinguishing lightning protection device and application thereof
  • Air-gap-free semi-closed double-backflushing arc extinguishing lightning protection device and application thereof
  • Air-gap-free semi-closed double-backflushing arc extinguishing lightning protection device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a semi-closed double recoil arc extinguishing lightning protection device without air gap, including arc extinguishing body 4 and recoil arc extinguishing assembly 5; the interior of the arc extinguishing body 4 is a hollow structure, and A partition 8 is arranged longitudinally in the middle of the interior, and the partition 8 divides the inner space of the arc extinguishing body 4 into two groups of recoil perfusion arc extinguishing channels 9, and the partition 8 is provided with a wall electrode 7; The upper end of the recoil perfusion arc extinguishing channel on the side is fixed with a recoil arc extinguishing assembly, and the lower end is a recoil nozzle extending to the side of the arc extinguishing body; the upper end of the recoil perfusing arc extinguishing channel on the right is a A recoil arc extinguishing assembly is fixedly installed at the lower end of the recoil nozzle extended on the side; the arc striking electrode 14 i...

Embodiment 2

[0043] Such as Figure 4 As shown, the structure and principle of this embodiment are basically the same as that of Embodiment 1, the difference is that the wall electrode 7 uses a compressed arc extinguishing tube. The compression arc extinguishing tube adopts a ceramic tube, and an arc-guiding metal ball is placed in the middle of the tube.

Embodiment 3

[0045] Such as Figure 5 As shown, the structure and principle of this embodiment are basically the same as that of Embodiment 1, the difference is that the wall electrode 7 uses a recoil tube. The recoil pipe is a semi-closed pipe with one end open and the other end connected to the lightning pole.

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PUM

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Abstract

The invention discloses an air-gap-free semi-closed double-backflushing arc extinguishing lightning protection device and application thereof. The arc extinguishing device mainly comprises an arc extinguishing body and a backflushing arc extinguishing assembly, wherein the interior of the arc extinguishing body is of a hollow structure, a partition plate is further longitudinally arranged in the middle of the interior of the arc extinguishing body, and divides the internal space of the arc extinguishing body into two sets of backflushing pouring arc extinguishing channels, a backflushing arc extinguishing assembly is fixedly mounted at the upper end of the backflushing perfusion arc extinguishing channel on the left side, a backflushing nozzle extending towards the side surface of the arcextinguishing body is formed in the lower end of the backflushing perfusion arc extinguishing channel, the upper end of the backflushing perfusion arc extinguishing channel at the right side is a backflushing nozzle extending towards the side surface of the arc extinguishing body, and the lower end is fixedly provided with a backflushing arc extinguishing assembly. The device can restrain and control the arc path, eliminates the harm of arc drift, is wide in application range, is installed at a time, can be repeatedly used for a long time, is low in operation cost, is high in sensitivity, andfacilitates the safe production of electric power.

Description

technical field [0001] The invention belongs to a lightning protection device for power transmission and distribution overhead lines, and relates to a semi-closed double-recoil arc-extinguishing lightning protection device without an air gap and its application. Background technique [0002] At present, lightning strike accidents are frequent in areas such as overhead transmission and distribution lines, substations, and power plants. The accidents caused by lightning strikes have brought great challenges to the safe, stable and reliable operation of the power system, and have also brought great challenges to the country's economic development and people's living standards. have a huge impact. How to carry out effective arc extinguishing and lightning protection to improve the safety, stability and reliability of the power system has always been the key research content of the power sector. The existing arc extinguishing and lightning protection methods are mainly through th...

Claims

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Application Information

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IPC IPC(8): H01T1/02H01T4/08H01B17/48H01B17/46
CPCH01T1/02H01T4/08H01B17/48H01B17/46
Inventor 王巨丰王嬿蕾李心如唐佳雄徐宇恒
Owner 段小嬿
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