换流站阀冷却外风冷系统防冻设计策略及现场应急处理 probe into anti-freezing design strategies emergency treatments of outer air cooling in converter station valve cooling system.pdfVIP
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换流站阀冷却外风冷系统防冻设计策略及现场应急处理probeintoanti-freezingdesignstrategies
换流站阀冷却外风冷系统防冻设计策略 及现场应急处理 付纪华,刘 军,孙海涛,摆 亲 (陕西省电力公司检修公司,陕西西安710065) 摘要:我国西北地区冬季气温较低,换流站阀冷却系统外风冷管道中的冷却水极易结冰,导致外风冷阀门渗 漏、管道破裂,严重时将导致直流输电系统长时间停运,如何提高外风冷系统的防冻能力成为换流站运行维护中 面临的一个新的重要课题。归纳总结了目前我国换流站外风冷系统呆取的主要防冻设计策略。并结合实际运行 情况提出了改进建议,制定了换流站阀外风冷系统防冻应急处理流程。 关键词:换流站;外风冷;防冻;设计策略;应急处理 为瀵鬻鬣懑~懑_||i;拣漤麓懑滋镶溪鬻谶罐.藜鬻镰鬻懑鬻蹶瓷辫麓一。. 中图分类号:TM83 文献标志码:A 文章编号:1673—7598(2013)0l一0079—04 Probeinto Anti—freezingDesign of Air in outer ConVerterStationValVe Cooling CoolingSystem FU Ji—hua,LIUJun,SUNHai—tao,BAIQin ofShaanxiElectricPower 71 (MaintenanceCompany 0065,China) Co叩oration,Xi’an Abstract:The ofnorthwestChinain temperature winterislow, the waterintheair ofvalve is cooling coolingpipe coolingsystem andcauseair—cooledValVe willTesultinHVDC fora extremelyeasyicing time, leakage,pipelinempture,which systemoutageslong howto theextemal becomesanew inthe andmaintenanceof improVe coolingsystemantifreezingability importantsubject operation converterstation. thecurrentmain fortheconverterstationair—cooledinour Bysummarizing antifreezingdesignstrategies system the forwardsome andmakesthe treatmentofthevalveair— country,paperputs improvedproposals, antifreezingeme唱ency pmcess cooled withtheactual systemcombining operation. ,。鬻∞窖鬟卷慧。麓奄
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