论文部分内容阅读
为了更好地分析压水堆发生主蒸汽管道断裂(main steam line break,MSLB)叠加一根蒸汽发生器传热管破裂(steam generator tube repture,SGTR)叠加事故的热工水力过程,用Relap5/mod3.2程序对事故进程进行模拟。比较计算结果与参考电站结果,一回路压力、一次侧向二次侧泄漏流量等主要参数变化趋势一致,安注投入等安全响应的情况基本相同,证明了本次计算的可信性。分析主要参数的变化趋势并解释其变化原因,总结出完整的事件序列和操作员干预的措施。对堆芯水位的计算结果表明:操作员在10min内对事故进行干预情况下堆芯不裸露,反应堆是安全的。
In order to better analyze the thermo-hydraulic process of PWR stackup with main steam line break (MSLB) superimposed on steam generator tube repture (SGTR), Relap5 / mod 3.2 program to simulate the process of the accident. Comparing the calculation results with those of the reference station, the main parameters such as the pressure of the primary circuit and the primary secondary side leakage flow change in the same direction. The safety response such as the safety injection is basically the same, which proves the credibility of this calculation. Analyze the trend of the main parameters and explain the reasons for the changes, and summarize the complete sequence of events and the measures of operator intervention. The calculation of the core water level shows that the reactor is not exposed when the operator interferes with the accident within 10 minutes and the reactor is safe.