Laser Cleaning of Contaminations on the Surface of Stone Relics

Yayun, 叶亚云 Ye; Yang, 齐扬 Qi; Lang, 秦朗 Qin; Yong, 蒋勇 Jiang; Kaibo, 肖凯博 Xiao; Haijun, 王海军 Wang; Xiaoyu, 栾晓宇 Luan; Xiaofeng, 程晓锋 Cheng; Xiaodong, 袁晓东 Yuan

doi:10.3788/cjl201340.0903005

Cited by 4 publications

(2 citation statements)

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“…米，或者更高，在这种情况下，为防止传输镜表面破坏并延长传输镜的使用寿命，严格控制传输镜表面洁净度是很有必要的 [3] 。目前传输镜表面中常见的污染物大都是自然降尘或者操作者操作过程中遗落的金属屑以及纤维 [4][5] ，常用的在线污染物去除方法有：无尘布擦拭和激光在线清洗 [4,6] 。针对手工擦拭时用力不均等因素常导致硬质污染物划伤传输镜表面以及激光在线清洗具有局限性的缺点，美国利弗莫尔国家实验室设计了一套适用于美国国家点火装置(NIF)装置的传输镜表面杂质在线去除系统 [3,[7][8] 。该系统采用风刀产生的高速气流虽然能有效去除 10 μm 及其以上粒度的污染物，但是吹扫后的颗粒物重新返回了环境，易造成其他光学元件受到污…”

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Numerical Simulation of Debris Removal Trajectories on Transport Mirrors in High Power Laser System

Yangshuai¹,

Jianqiang²,

Xiangyang³

et al. 2015

中国激光

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By using N-S equations, RNG κε model and discrete phase model of Euler-Lagrange method, numerical simulations on the removal trajectories of contaminant particles of different sizes and types on the mirror surface are conducted with the commercial software Fluent. Benefiting from the simulation results, a useful device which can capture and collect debris from the mirror surface online is built. Ultimately the efficiency of cleaning and cleanliness of transport mirrors are improved. And to some extent, the chances that contaminant particles go into the surrounding environment and further pollute other optical components are reduced.

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Section: -unclassified

Numerical Simulation of Debris Removal Trajectories on Transport Mirrors in High Power Laser System

Yangshuai¹,

Jianqiang²,

Xiangyang³

et al. 2015

中国激光

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“…Ye and Qi of the China University of Geosciences focused on the application of laser cleaning technology to the cleaning of pollutants on the surface of stone cultural relics. Simulation and experimental methods have been used to verify that the laser cleaning method is effective and that there are no adverse impacts on stone cultural relics [22], [23]. In [24]- [26], laser cleaning was applied to various fields, such as mould cleaning, rust removal and insulator room temperature vulcanized (RTV) coating cleaning.…”

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confidence: 99%

Numerical Analysis and Experimental Study of the Laser Cleaning of Ceramic Insulator Contamination

Tian

et al. 2022

IEEE Access

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Contamination flashover of insulators is one of the main threats to the safety of power systems, and regular cleaning of insulator surface pollution is an effective solution to this problem. In this paper, the laser cleaning of ceramic insulators is studied via simulations and experiments. The adhesion between a contamination layer and an insulator surface is estimated. A laser cleaning model for contaminated insulators is established, and a numerical analysis of the thermal stress field distribution characteristics of laser cleaning is carried out. Various factors that affect the thermal stress field distribution, including the laser power, laser scanning speed and thickness of the contamination layer, are also analysed. The optimal cleaning parameters for the best performance of laser cleaning are obtained through simulation and experiments. The result shows if the equivalent salt deposit density (ESDD) is 0.05 mg/cm 2 , and the nonsoluble deposit density (NSDD) is 0.25 mg/cm 2 , the best cleaning effect could be achieved when the laser power is 100 W and the scanning speed reached 6000 mm/s.

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Numerical Analysis on Surface Temperature of Polluted Porcelain Insulator by Laser Cleaning

Tian

Tang

et al. 2020

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)

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Laser Cleaning of Contaminations on the Surface of Stone Relics

Cited by 4 publications

References 0 publications

Numerical Simulation of Debris Removal Trajectories on Transport Mirrors in High Power Laser System

Numerical Simulation of Debris Removal Trajectories on Transport Mirrors in High Power Laser System

Numerical Analysis and Experimental Study of the Laser Cleaning of Ceramic Insulator Contamination

Numerical Analysis on Surface Temperature of Polluted Porcelain Insulator by Laser Cleaning

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