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CO2 laser ablation device based on a double-off-axis parabolic mirror group

An off-axis parabolic mirror, laser ablation technology, applied in the direction of optics, optical components, overhead lines/cable equipment, etc., can solve the problems of low removal efficiency, low safety, high maintenance cost, etc., achieve high energy utilization, avoid Focus jumping, ensuring the effect of stability and coaxiality

Active Publication Date: 2019-07-19
STATE GRID SHAANXI ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Based on the above background, in order to solve the problem of low safety, high maintenance cost, low removal efficiency of the traditional high-voltage electric wire overlap foreign matter removal method, and the existing CO 2 The simple laser ablation device is not suitable for the technical problem of long-distance or small foreign matter removal. The invention provides a CO based on a double off-axis parabolic mirror group. 2 laser ablation device

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  • CO2 laser ablation device based on a double-off-axis parabolic mirror group
  • CO2 laser ablation device based on a double-off-axis parabolic mirror group
  • CO2 laser ablation device based on a double-off-axis parabolic mirror group

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Embodiment Construction

[0044] In order to enable those skilled in the art to fully understand the technical solution, practicability and advantages of the present invention, the inventive concept and technical route of the present invention are first described as follows.

[0045] CO 2 The main output wavelength range of the laser is about 10.6 microns. Since the laser absorption rate of metal and non-metallic materials in this range is very different, and the transmittance of this band is high in the atmosphere, it is suitable for high-voltage transmission lines (metals). Long-distance, non-contact removal of dangling non-metallic foreign bodies.

[0046] Since the erection of high-voltage transmission lines has a certain height from the ground, and some high-voltage transmission lines are erected on the top of mountains or other remote areas, the safe working distance of operators who can actually remove foreign matter is generally far away, which belongs to long-distance removal operations. by t...

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Abstract

The invention discloses a CO2 laser ablation device based on a double-off-axis parabolic mirror group. In order to solve the problems that a traditional high-voltage electric wire lap joint foreign matter removal mode is low in safety, high in maintenance cost and low in cleaning efficiency, and the technical problems that the existing CO2 laser ablation device is not suitable for long distance orsmall removal of foreign matter. The invention provides a CO2 laser ablation device based on a double-off-axis parabolic mirror group. The coaxial beam splitter mirror group realizes three paths of common axes of a CO2 laser beam expanding and focusing system, a visible light camera and a laser ranging system, the CO2 laser beam expanding and focusing system is based on a double-off-axis parabolic mirror group, no central obstruction exists, light and large-caliber use requirements can be met; the optical axis of the visible light camera and the optical axis of the CO2 laser beam expanding and focusing system are kept coaxial, and the optimal ablation effect can be ensured; the optical axis of the ranging system and the optical axis of the CO2 laser beam expanding and focusing system arekept coaxial, the adjustment of the focusing negative lens can be ensured, and the long-distance focusing of the CO2 laser is realized; and the visible light camera is combined with the two-dimensional rotating mechanism to realize the searching, capturing and locking of the foreign matter target.

Description

technical field [0001] The invention relates to an optical non-contact CO 2 Laser ablation device, in particular to a CO based on dual off-axis parabolic mirror groups 2 The laser ablation device can be used for foreign matter removal on high-voltage transmission lines, especially for long-distance high-voltage transmission line foreign matter removal. Background technique [0002] High-voltage and ultra-high-voltage power grids are important physical transmission networks for long-distance large-scale power transmission in power systems. The power transmission grid uses multiple high-voltage and ultra-high-voltage physical cables, which are insulated and overhead between towers with a height of 20m to 100m. Because the cables are exposed to the natural environment all the year round, objective natural or human reasons often cause non-metallic foreign objects such as plastics to be lapped on cables, towers, insulators and other power grid facilities. It leads to poor insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B7/00H02G1/02G02B17/08G02B27/10G02B1/00
CPCB08B7/0042H02G1/02G02B17/0804G02B17/0864G02B27/1006G02B1/00
Inventor 高峰刘爱敏王南蔡勇张维佳肖茂森孔志战杨县委胡攀峰陈小健黄俊峰褚磊王晓涛
Owner STATE GRID SHAANXI ELECTRIC POWER RES INST
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