通过对BN-800和中国实验快堆钠接收和二回路钠充排系统的对比分析,得到的主要不同点有:1)系统划分不同。BN-800从功能细分的角度出发将本系统拆分为钠接收系统、二回路贮钠系统和二回路排放和排气系统;2)设备组成不同。为了从设计上解决高点排气和低点排钠问题,BN-800 By comparing and analyzing the sodium receiving and secondary sodium charging and discharging systems of BN-800 and China Experimental Fast Reactor, the main differences are as follows: 1) The system is divided differently. BN-800 from the perspective of functional subdivision of the system is divided into sodium receiving system, the second loop sodium storage system and the second loop emissions and exhaust systems; 2) different equipment components. In order to solve the design of high exhaust and low sodium problems, BN-800