摘要
针对目前换流站阀冷却系统渗泄漏故障发生时无法通过肉眼或摄像头第一时间发现泄漏点的问题,分析了膨胀罐液位保护、微分泄漏保护以及阀塔漏水监测措施存在的弊端,并在此基础上提出水管接头增加遇水变色指示套管、阀塔屏蔽层增加漏水检测变色纸的辅助检测漏水方法,对于换流站阀冷却系统早期发现漏水以及漏水后准确定位漏水点提供辅助手段,提高了阀冷却系统运维水平,可为全国换流站阀冷系统的运维管理提供参考。
The leakage points are invisible to the naked eye or cameras right after the leakage accidents occur in a valve cooling system of a converter station.The paper analyzes the downsides of liquid level protection of expansion tank,differential leakage protection and valve tower leakage monitoring measures.Moreover,it proposes an auxiliary leakage detection method of equipping water discoloured indicator sleeve on the water pipe joints and metachrometype paper for leakage detection on valve tower screen layer,assisting early water leakage detection and leakage point location in the cooling system of converter station,enhancing operation and maintenance level of valve cooling system and providing a reference for cooling system operation and maintenance of nationwide converter stations.
作者
李洋
谢伟锋
雷战斐
韩慧麟
赵庆杰
LI Yang;XIE Weifeng;LEI Zhanfei;HAN Huilin;ZHAO Qingjie(State Grid Ningxia Electric Power Maintenance Company,Yinchuan Ningxia 750011,China)
出处
《宁夏电力》
2021年第5期34-37,52,共5页
Ningxia Electric Power
关键词
换流阀
漏水监测
检测装置
接头漏水指示套管
屏蔽罩漏水检测试纸
converter valve
leakage monitoring
detection device
joint leakage indicator sleeve
shield cover leakage test paper
