Unlock instant, AI-driven research and patent intelligence for your innovation.

Semi-closed double-recoil arc extinguishing lightning protection device and application thereof

A semi-enclosed lightning protection device technology, applied in the direction of electrical components, spark gaps, spark gap parts, etc., can solve the problem of consumption, arc extinguishing and lightning protection, and the technical level of lightning protection devices is difficult to achieve in one step And other issues

Pending Publication Date: 2020-10-27
段小嬿
View PDF5 Cites 0 Cited by
  • 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 devices still have the following problems: ① The arc extinguishing effect is not good, the condensation electrode effect is generated when the arc passes through, and the low temperature arc is baked. Baking the gas-producing material makes the gas-generating effect not good, and the contradiction between the condensation electrode effect and the high-temperature baking gas-producing arc extinguishing makes the arc-extinguishing effect not good; ②The arc-extinguishing sensitivity is not high, and the arc-extinguishing effect is not good when a small arc passes through Good, only when a large arc passes through the multi-chamber can it operate correctly, and the large arc flow will cause the relay protection to operate and there will be a trip accident, so the sensitivity of multi-chamber arc extinguishing is not ideal; ③The durability is not high, and the gas-producing material It needs to be baked to produce gas under high temperature conditions, and the gas-producing materials in the arc extinguishing device are consumed under high temperature conditions, resulting in poor durability; ④ Affected by the operation mode, there is a blind area of ​​arc extinguishing, which makes the effect of arc extinguishing and lightning protection poor good

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Semi-closed double-recoil arc extinguishing lightning protection device and application thereof
  • Semi-closed double-recoil arc extinguishing lightning protection device and application thereof
  • Semi-closed double-recoil arc extinguishing lightning protection device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, a semi-enclosed double recoil arc extinguishing lightning protection device includes an arc extinguishing body 4 and a recoil arc extinguishing assembly 5; There is also a partition 8 longitudinally, which divides the inner space of the arc extinguishing body 4 into two recoil perfusion arc extinguishing channels 9, and the partition 8 is provided with a wall electrode 7; A recoil arc extinguishing assembly is fixedly installed on the upper end of the flushing perfusion arc extinguishing channel, and the lower end is a recoil nozzle extending vertically downward; the upper end of the recoil perfusing arc extinguishing channel on the right is a recoil nozzle extending to the side of the arc extinguishing body. A recoil arc extinguishing assembly is fixedly installed at the lower end; electrodes 14 are arranged on the recoil arc extinguishing assemblies; The upper electrode 141 on the arc extinguishing assembly and the lower electrode 142 insta...

Embodiment 2

[0045] 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.

[0046] The practical application of this embodiment:

[0047] A semi-closed double recoil arc extinguishing lightning protection device is installed on the low-voltage end 2 of the insulator string 1 of the transmission line through the fixing hardware, and the upper electrode of the semi-closed double recoil arc extinguishing lightning protection device is directly electrically connected to the fixing hardware; A high-voltage electrode is fixedly installed at the high-voltage end 3 of the insulator string 1 of the transmission line; the lower electrode of the semi-closed double-recoil arc-extinguishing lightning protection device poin...

Embodiment 3

[0049] 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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a semi-closed double-recoil arc extinguishing lightning protection device and application thereof. The semi-closed double-recoil arc extinguishing lightning protection device mainly comprises an arc extinguishing body and a recoil 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 recoil perfusion arc extinguishing channels, the upper end of the recoil perfusion arc extinguishing channel on the left side is fixedly provided with a recoil arc extinguishing assembly, the lower end of the recoil perfusion arc extinguishing channel on the left side is provided with a recoil nozzle vertically extending downwards, the upper end of the recoil perfusion arc extinguishing channel at the right side is a recoil nozzle extending towards theside surface of the arc extinguishing body, and the lower end is fixedly provided with a recoil arc extinguishing assembly. According to the invention, the arc path can be restrained and controlled,and the arc drift hazard is eliminated; and the device has the advantages of wide application range, one-time installation, long-term repeated use, low operation cost and high sensitivity, and is beneficial to electric power safety production.

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 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 the installation of a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/46H01B17/48H01T1/02
CPCH01B17/46H01B17/48H01T1/02
Inventor 王巨丰王嬿蕾杨倩颖张清河彭斐
Owner 段小嬿