溶解氢在发电机内冷水漏氢及漏氢量监测的研究与应用  

Research and Application of Dissolved Hydrogen in Monitoring Hydrogen Leakage of Generator Internal Cooling Water

作　　者：孙维义 焦玉刚[1] 薛亚飞 杨锐锐 王建军[1] 刘晓林 解小虎 SUN Wei-yi;JIAO Yu-gang;XUE Ya-fei;YANG Rui-rui;WANG Jian-jun;LIU Xiao-lin;XIE Xiao-hu(Shaanxi Deyuan Fugu Energy Co.,Ltd.Fugu 719407,China)

机构地区：[1]陕西德源府谷能源有限公司,陕西府谷719407

出　　处：《全面腐蚀控制》2023年第5期70-73,共4页Total Corrosion Control

摘　　要：国家能源局《防止电力生产事故二十五项重点要求》2022征求意见稿中第10.7.1.2内冷水箱漏氢监测数据应以未进行补排水、水箱液位稳定时为准,当含氢量(体积含量)超过2%应报警,并加强对发电机的监视,超过10%应立即停机消缺,对于闭式水箱,氢气浓度应在排气阀开启状态下,水箱上部气体达到动态稳定时测量。第10.7.1.3条明确规定漏氢量达到0.3m3/d时,应计划消缺,漏氢量大于5m3/d时,应该立即停机处理。第10.7.1.4条明确规定有条件时开展水内溶解氢量检测(或监测),通过与同类机组及历史数据比较或计算等效漏氢量,判断是否存在漏氢缺陷。In article 10.7.1.2 of the twenty five key requirements for preventing electric power production accidents(2022 draft)of the national energy administration,the hydrogen leakage monitoring data of the internal cooling water tank shall be subject to the condition that the water supply and drainage are not carried out and the water level of the water tank is stable.When the hydrogen content(volume content)exceeds 2%,the alarm shall be given and the monitoring of the generator shall be strengthened.If the hydrogen content exceeds 10%,the generator shall be shut down immediately to eliminate the defect.For the closed water tank,the hydrogen concentration shall be under the condition that the exhaust valve is opened,Measure when the gas in the upper part of the water tank reaches dynamic stability.Article 10.7.1.3 clearly stipulates that when the hydrogen leakage reaches 0.3m3/d,the defect shall be eliminated.When the hydrogen leakage is greater than 5m3/d,the machine shall be shut down immediately.Article 10.7.1.4 clearly stipulates that the dissolved hydrogen in water shall be detected(or monitored)when conditions permit,and whether there is hydrogen leakage defect shall be judged by comparing with similar units and historical data or calculating equivalent hydrogen leakage.

关 键 词：内冷水 漏氢量 准确 快速有效 溶解氢 

分 类 号：TM621.8[电气工程—电力系统及自动化]