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对安注管道不同破口尺寸条件下的一体化模块式小型堆非能动安注系统运行特性进行了实验研究。结果表明:安注管道破口面积越大,破口侧和非破口侧堆芯补水箱系统注射流量差别越大;在破口面积较大的情况下,安注箱系统注射对堆芯补水箱系统注射有明显地影响;在堆芯补水箱系统投入初期运行方式为水-水循环,在压力平衡管线出现蒸汽后,运行方式为汽-水循环,注射流量会明显增加。安注箱通过氮气膨胀驱动,注射流量受系统降压速率影响。
An experimental study on the operation characteristics of the integrated module-type small-sized reactor passive an-amp system under different breaking size of the security injection pipe was carried out. The results show that the bigger the area of the safety injection pipe is, the larger the injection flow rate is between the broken side and the non-broken side of the core reboiler system. When the area of the breach is large, Injecting system has a significant impact on the tank system; initial operation of the reactor core water tank system for the water - water cycle, steam pressure in the balance line, the operation mode for the steam - water cycle, the injection flow will be significantly increased. Safety injection box driven by nitrogen expansion, the injection rate by the system buck pressure rate.