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贵州大气环境中耐侯钢在电网应用中的关键技术

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  • 1.贵州电力科学研究院,贵州 贵阳 550007; 2.贵州大学材料与冶金学院,贵州 贵阳 550025
杨 明(1981-),博士,副教授,主要研究方向为金属结构材料腐蚀与服役性能研究,电话:15185193969,E-mail:myang5@gzu.edu.cn

收稿日期: 2022-09-23

  修回日期: 2022-10-14

  录用日期: 2022-11-15

  网络出版日期: 2023-03-15

Key Technology of Weather Resistant Steel Used in Power Grid in Guizhou Atmospheric Environment

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  • 1.Guizhou Electric Power Research Institute,Guiyang 550007,China; 2.School of Materials and Metallurgy,Guizhou University,Guiyang 550025,China

Received date: 2022-09-23

  Revised date: 2022-10-14

  Accepted date: 2022-11-15

  Online published: 2023-03-15

摘要

大气腐蚀对电网输变电设备的安全运行的影响显著。目前广泛在电网输变电设备领域使用的钢材的耐大气腐蚀性能和防腐技术难以满足电网建设和长寿命服役要求。首先简述了输变电设备大气腐蚀现状,指明了环境参量中大气成分、大气相对湿度、温度和钢材的化学成分、组织状态对电网设备腐蚀速率和腐蚀机制的影响;结合贵州省大气环境条件,对耐候钢在贵州电网应用中亟需解决的关键问题进行了分析;最后,提出通过现场暴露试验、加速试验和发展在线监测技术,不仅能收集海量的腐蚀数据,实现腐蚀评级并建立完整的大气腐蚀等级图,还可结合大数据处理和机器学习等方法,获得耐候钢在特定大气环境中的腐蚀机制,为耐候钢在电网设备中替代普碳钢和相关设备的安全运行提供技术保障。

本文引用格式

李波, 孙清, 刘卓毅, 樊磊, 何锦航, 杨明 . 贵州大气环境中耐侯钢在电网应用中的关键技术[J]. 材料保护, 2023 , 56(3) : 142 -149 . DOI: 10.16577/j.issn.1001-1560.2023.0070

Abstract

Atmospheric corrosion has a significant impact on the safe operation of power transmission and transformation equipment in power grids.At present,the atmospheric corrosion resistance and anti-corrosion technology of steel widely used in the field of power transmission and transformation equipment cannot meet power grid construction and long service life requirements.In this paper,current situation of atmospheric corrosion of power transmission and transformation equipment was described first,then the influence of environmental parameters such as atmospheric composition,atmospheric relative humidity,temperature,chemical composition and microstructure of steel on the corrosion rate and corrosion mechanism of power grid equipment were pointed out.Furthermore,combined with the atmospheric environment conditions in Guizhou province,the key problems to be solved in the application of weathering steel in Guizhou power grid were analyzed.Finally,it was proposed that through on-site exposure test,accelerated test and development of on-line monitoring technology,not only massive corrosion data could be collected,corrosion rating could be achieved and a complete atmospheric corrosion grade map could be established,but also the corrosion mechanism of weathering steel in a specific atmospheric environment could be obtained by combining big data processing and machine learning methods to provide technical support for the safe operation of weathering steel in power grid equipment instead of ordinary carbon steel and related equipment.

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