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%.
出处
《动力工程学报》
CAS
CSCD
北大核心
2011年第8期585-589,共5页
Journal of Chinese Society of Power Engineering
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
wet steam turbine
characteristic flow area
Flugel formula
performance characterization
slight error heat balance
