CPR1000蒸汽发生器热力性能分析方法研究

Research of Thermal Performance Analysis Method for CPR1000 Steam Generator

针对核电站二回路腐蚀产物在蒸汽发生器传热管二次侧不断集聚和沉积,会对核电站安全经济运行带来较大影响的问题,基于蒸汽发生器传热计算模型,结合蒸汽发生器和汽轮机的匹配裕度建立了某CPR1000核电站蒸汽发生器的热力性能监测和评估模型,并对该机组的实际运行数据进行分析,提出了相应的治理措施和建议。结果表明:该模型可以对蒸汽发生器后续的运行趋势进行预测,以保障核电站重大关键设备的安全性和经济性。

The continuous accumulation and deposition of corrosion products in the secondary side of steam generator(SG) heat transfer tubes will have a great impact on the safe and economic operation of nuclear power plants. Based on the heat transfer calculation model of steam generator, the thermal performance supervision and evaluation model for steam generator in a CPR1000 nuclear power plant was established combining with the matching margin of steam generator and steam turbine. And the actual operation data of the unit were analyzed, the corresponding treatment measures and suggestions were put forward. Results show that the model can predict the subsequent operation trend of the steam generator, so as to ensure the safety and economy of major key equipments of the nuclear power plant.