核电站汽轮机运行性能监测与诊断  

Performance Monitoring and Fault Diagnosis of Wet-steam Turbines for Nuclear Power Plants

作　　者：邓德兵[1] 赵清森[1] 陈伟[1] 刘刚[1] 

机构地区：[1]苏州热工研究院有限公司,苏州215004

出　　处：《动力工程学报》2011年第8期585-589,共5页Journal of Chinese Society of Power Engineering

摘　　要：就核电汽轮机与火电汽轮机的差异以及由此差异引起的湿蒸汽汽轮机通流性能表征与热平衡计算的难点进行了论述,提出了利用特征通流面积CFA来表征核电汽轮机的通流性能和采用小误差热平衡法来计算核电汽轮机的热平衡图,应用小误差热平衡法和特征通流面积成功开发了核电站热力性能在线监测与分析系统和核电站汽轮机全面热力试验计算软件,并将这两项技术应用在大亚湾核电机组热力性能在线监测与分析系统和岭澳二期核电机组全面热力试验中.结果表明:实际运行监测中特征通流面积监测值的测量精度可控制在1%以内.An introduction is being presented to differences between nuclear and thermal power steam turbines,together with a description to the consequent difficulties in flow performance characterization and heat balance calculation.The concept of characteristic flow area（CFA） and the method of slight error heat balance（SEHB） are proposed to respectively characterize the flow performance and carry out relevant thermal calculations for nuclear power steam turbines,with which a series of software are developed for on-line performance monitoring/analysis and thermal calculation purposes.The two developed technologies have been applied to on-line performance monitoring/analysis of steam turbine in Daya Bay Nuclear Power Plant and to thermal performance test of steam turbine in Lingao Phase II Nuclear Power Plant.Actual operation results show that the measurement of CFA can be controlled within an accuracy of 1%.

关 键 词：湿蒸汽汽轮机 特征通流面积 弗留格尔公式 性能表征 小误差热平衡法 

分 类 号：TK263.2[动力工程及工程热物理—动力机械及工程]