500 kV海底充油电缆海水孔口侵入仿真  

Simulation of Seawater Orifice Intrusion of 500 kV Submarine Oil-filled Cable

作　　者：邓杰 吴青帅 董男 张维佳[1] 江琪园 李丽丽[2] 高俊国[2] 徐晓峰 DENG Jie;WU Qingshuai;DONG Nan;ZHANG Weijia;JIANG Qiyuan;LI Lili;GAO Junguo;XU Xiaofeng(Guangzhou Bureau of EHV Power Transmission Company,China Southern Power Grid Co.,Ltd,Guangzhou 510000,China;Key Laboratory of Engineering Dielectrics and Its Applications,Ministry of Education,Harbin University of Science and Technology,Harbin 150000,China;Shanghai Electrical Cable Research Institute Co.Ltd.,State Key Lab of Special Cable Technology,Shanghai 200093,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司广州局,广州510000 [2]哈尔滨理工大学工程电介质及其应用教育部重点实验室,哈尔滨150000 [3]上海电缆研究所有限公司特种电缆技术国家重点实验室,上海200093

出　　处：《哈尔滨理工大学学报》2024年第4期97-104,共8页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金(51577045);黑龙江省博士后科研启动基金(LBH-Q19106).

摘　　要：为了探究海底充油电缆发生损坏后,海水进入电缆的长度,依据海南联网系统500 kV海底充油电缆,建模仿真了孔口在不同深度下以及相同深度的不同位置时海水进入电缆的长度。结果表明:孔口靠近广东侧时,孔口两侧进水长度总体先增大后减小,孔口左侧最大增加6.32%,孔口右侧最大增加83.37%;孔口靠近海南侧时,随着孔口深度增加,海水进入孔口两侧长度均增加;同一深度下,孔口越靠近电缆中间位置,孔口两侧进水长度越短;20 m与60 m时,孔口两侧进水长度下降2.28%~4.56%;70 m与80 m时,孔口左侧进水长度平均下降4.97%,右侧平均下降21.03%。In order to investigate the length of seawater entering the submarine oil filled cable after it is damaged.The length of seawater entering the cable at different depths and locations at the same depth was modeled and simulated based on the 500 kV submarine oil filled cable of the Hainan Interconnection System.The results show that when the orifice is close to the Guangdong side,the overall water inlet length on both sides of the orifice first increases and then decreases,with a maximum increase of 6.32%on the left side of the orifice and a maximum increase of 83.37%on the right side of the orifice.When the orifice approaches the Hainan side,the length of seawater entering both sides of the orifice increases as the depth of the orifice increases.At the same depth,the closer the orifice is to the middle of the cable,the shorter the water inlet length on both sides of the orifice.At 20 m and 60 m,the water inlet length on both sides of the orifice decreases by 2.28%~4.56%.At 70 m and 80 m,the water inlet length on the left side of the orifice decreases by 4.97%on average,while the water inlet length on the right side decreases by 21.03%on average.

关 键 词：充油电缆 进水长度 两相流 数值仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]