某核电站汽轮机主阀门行程试验机组功率提升分析  

Analysis of Increase Power Setting for Turbine Main Valve Stem Free Test in a Nuclear Power Plant

作　　者：胡振煜 王保田 HU Zhen-yu;WANG Bao-tian(Sanmen Nuclear Power Plant Co.,Ltd.)

机构地区：[1]三门核电有限公司,浙江台州317112

出　　处：《电站系统工程》2025年第2期75-77,共3页Power System Engineering

摘　　要：为验证核电站汽轮机在跳闸、机械超速或OPC保护动作时汽轮机主阀门能可靠关闭,需要定期执行汽轮机主阀门行程试验。试验前需将机组由满功率降至较低功率负荷平台,以减少试验对核岛热功率波动的影响,因此对电站运行的经济性带来一定损失。某核电站原设计要求汽轮机主阀门行程试验降功率到95%功率执行,为提升电站运行经济性,在保障机组运行安全的前提下,电站通过技术分析及验证,逐步提升了试验功率至98%。To verify steam turbine main valves close reliably on turbine trip and overspeed condition,it is necessary to perform main valves stem free test regularly.The unit power load is decreased to lower load stage from full load before the test because the main valves stroke test will increase the reactor thermal power change amount,which impact the nuclear power plant economy.Certain nuclear power plant originally reduced to 95% electrical power for the turbine main valve stem free test as per manufacturer requirement.Under guarantee the unit safety operation,the power setting is promoted to 98% electrical power gradually by evaluation and verification the test data.

关 键 词：核电站 汽轮机 主阀门 行程试验 功率提升 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]