基于CDEGS的输电线路对油气管道的运行安全影响研究  

Study on the Safety Impact of Transmission Line on Oil and Gas Pipeline Operation Based on CDEGS

作　　者：李睿[1] 全青 王勇[1] LI Rui;QUAN qing;WANG Yong(Petroleum Engineering College,Xi'an Shiyou University,Xi'an 710065,China)

机构地区：[1]西安石油大学,西安710065

出　　处：《电瓷避雷器》2020年第5期171-175,共5页Insulators and Surge Arresters

摘　　要：为了研究输电线路故障状况下,接地网散流对临近油气管道安全运行造成的电磁干扰。基于实际工程参数,建立了输电线路在雷击情况下,对油气管道电磁干扰模型。采用CDEGS防雷计算软件分析了雷电流幅值、土壤电阻率、线路与管道间距对管道感应电压的影响规律。对比了输电线路两种状态运行下采用排流线(裸铜带)保护前后管道感应电压防护效果。计算结果表明:增加管线间距与敷设屏蔽线后管道感应电压明显降低。研究结论可为油气管道设计施工及安全防护提供参考。In order to study the electromagnetic interference caused by grounding grid dispersion on the safe operation of nearby oil and gas pipelines under transmission line fault conditions. Based on the actual engineering parameters,the electromagnetic interference model of transmission lines to oil and gas pipelines under lightning strike is established. The influence of lightning current amplitude,soil resistivity and distance between line and pipeline on induced voltage of pipeline is analyzed by CDEGS lightning protection calculation software. The protective effect of induced voltage of pipeline before and after using discharge line( bare copper strip) protection under two operating conditions of transmission line is compared. The calculation results show that the induced voltage of the pipeline decreases obviously with the increase of pipeline spacing and the laying of shielding wires. The conclusions can provide reference for the design,construction and safety protection of oil and gas pipelines.

关 键 词：油气管道 管道感应电压 屏蔽线 CDEGS 

分 类 号：TE973[石油与天然气工程—石油机械设备] TM75[电气工程—电力系统及自动化]