电瓷避雷器Issue(6)：79-90,12.DOI:10.16188/j.isa.1003-8337.2025.06.010
天然气管道邻近土壤雷击散流与防腐层击穿防护研究
Lightning Dispersion and Breakdown Protection of Anticorrosive Layer in Soil Adjacent to Natural Gas Pipeline
摘要
Abstract
The electrical power transmission line near the natural gas pipeline is prone to lightning strikes during operation.The high amplitude lightning current makes the buried natural gas pipeline suffer a cer-tain amplitude of impact potential.The safety protection of the crossing point between the natural gas pipeline and the electric power line has attracted wide attention.Firstly,ATP-EMTP software is used to calculate the current waveform characteristics and influencing factors of the bar tower near the natural gas pipeline,and a three-dimensional finite element model is established to illustrate the production mecha-nism of the potential of the pipeline electrode and the potential difference of the anti-corrosion layer.Secondly,the influence rules of lightning flow amplitude,soil condition and pipe-line distance on the impact potential of natural gas pipeline are analyzed by simulation calculation,and the lightning impact protection method of natural gas pipeline is proposed based on the vertical dimension scattered flow of pile foundation.Finally,the practical application effect and technical economy are verified by simulation ex-amples and engineering application simulation tests.The conclusion of this study can provide reference for the design,construction and safe operation and maintenance of natural gas pipeline.关键词
天然气管道/邻近跨越/雷击/防腐层/管道防护Key words
natural gas pipeline/adjacent crossing/lightning strike/anticorrosive layer/pipeline protec-tion引用本文复制引用
苏小乐,刘伟,高波,胡元潮,熊洁,苏威..天然气管道邻近土壤雷击散流与防腐层击穿防护研究[J].电瓷避雷器,2025,(6):79-90,12.基金项目
国家自然科学基金项目(编号:52304068) （编号:52304068）
国网湖北省电力有限公司基金项目(编号:B315F0222836).Project supported by the National Natural Science Foundation of China(No.52304068) （编号:B315F0222836）
State Grid Hubei Electric Power Co.,Ltd.Fund Project(No.B315F0222836). （No.B315F0222836）
