基于中空充气密封腐蚀单元的地网腐蚀状态监测  

Corrosion Monitoring of Grounding Net Based on Hollow Inflatable Seal Corrosion Unit

作　　者：王亚舟 郑智慧[2] 严玉婷 印希宇 滕芸[2] 鲁海亮[2] WANG Yazhou;ZHENG Zhihui;YAN Yuting;YIN Xiyu;TENG Yun;LU Hailiang(Shenzhen Branch of China Southern Power Grid Company Limited,Shenzhen 518000,China;School of Electrical Engineering,Wuhan University,Wuhan 430072,China)

机构地区：[1]南方电网公司深圳供电局,深圳518000 [2]武汉大学电气工程学院,武汉430072

出　　处：《腐蚀与防护》2020年第5期34-39,共6页Corrosion & Protection

基　　金：中国南方电网有限责任公司科技项目(SZKJXM20160188)。

摘　　要：提出并研制了一种基于预埋式指示单元的地网腐蚀状态监测装置:将中空充气密封状态的腐蚀单元连接在接地网上,与接地网导体一同埋入土壤发生同种腐蚀反应,当接地导体腐蚀深度等于腐蚀单元厚度时,腐蚀单元被蚀穿变成非密封状态,检测装置的密封性能可判断腐蚀单元的腐蚀状态。在实验室对研制的检测装置进行了可行性试验,并根据装置尺寸及参数建立对应的仿真模型。结果表明:该装置可明显反映腐蚀单元的腐蚀状态,且仿真结果与试验结果吻合度较好,该装置可实现免开挖接地网腐蚀状态的监测功能。A corrosion monitoring device for grounding net based on a pre-embedded indicator unit was proposed and developed.A corrosion unit with hollow inflatable sealed state was connected to the grounding net,and the same kind of corrosion reaction occurred when the grounding net conductor was also buried in the soil.When the corrosion depth of the grounding conductor was equal to the thickness of the corrosion unit,the corrosion unit was perforated by corrosion and became unsealed,and the corrosion state of the corrosion unit was judged by the sealing performance of the detection device.The feasibility test of the developed detection device was carried out in the laboratory and the corresponding simulation model was established according to the device size and parameters.The results show that the device could clearly reflect the corrosion state of the corrosion unit and the simulation results were in good agreement with the test results.The device can realize the function of monitoring the corrosion state of the grounding net without excavation.

关 键 词：接地网 免开挖 腐蚀 监测 腐蚀单元 

分 类 号：TM83[电气工程—高电压与绝缘技术]