中国实验快堆为池型布置,堆芯及一回路的所有设备、管道均安装在钠池内。用三维热工流体力学程序计算了热钠池内钠的流场和温度场,给出了中间热交换器一次钠入口的钠温度,为二、三回路系统热工参数匹配提供了依据。计算的热钠池内钠的温度分布为一回路设备和热钠池内其它设备、 China Experimental Fast Reactor for the pool-type arrangement, the core and a loop all the equipment, pipes are installed in the sodium pool. The flow field and temperature field of sodium in sodium thermosyphon pool were calculated by three-dimensional thermodynamic fluid mechanics program. The temperature of sodium at the primary sodium inlet of the intermediate heat exchanger was given, which provided the basis for the matching of thermodynamic parameters of the second and third circuit systems. The calculated temperature distribution of sodium in the thermal sodium pool is a loop device and other devices in the thermal sodium pool,