核动力装置蒸汽发生器数值模拟计算

DYNAMIC SIMULATING CALCULATION FOR STEAM GENERATOR IN NUCLEAR POWER PLANT

建立了一个合理完善的核动力装置蒸汽发生器动态特性分析数学模型，并运用Ｇｅａｒ方法对此模型求解。研制了用于核动力装置蒸汽发生器稳定运行及扰动和事故工况下动态数值模拟的安全分析程序。运用此程序对秦山核电厂蒸汽发生器失去给水的事故进行了计算，所得结果与大型程序ＲＥＬＡＰ－５计算结果符合较好，并对蒸汽发生器几种不同扰动序列的计算结果进行了理论分析。

A mathematical calculation model used to appropriately analyse and dynamically simulate theU-tube recirculation type steam generator is proposed in this paper.With the Gear' s method, asafety analysing program is developed, which simulates perfectly the transient behavior whensteam generator operates in regular condition or accident case. By this program,the authors studyand analyse the responses of transient parameters to some different disturbances, and when thefeed water in steam generator is lost,the calculated results are in good agreement with those cal-culated by RELAP5 program.