CAJ | 학술논문

液氮分配系统中包括强制循环系统和重力输送自循环（自然循环）系统，重点介绍重力输送自循环（自然循环）液氮系统的性能和特点，分析出自然循环液氮系统是稳定、可靠、低液氮消耗和较高效率的系统。分配系统降低了工作温度，可以不用液氮泵，减少了系统中的阀门。设计自然循环系统前，要进行系统的热和液压分析，在自然循环系统设计中，系统的分析和预测是非常重要的，因为通过分析和验证才能保证系统内任何地方蒸发率都不超过10％，这可以明显减少设计风险。自然循环液氮系统已在多种低温设备中得到应用。
액담분배계통중포괄강제순배계통화중력수송자순배（자연순배）계통，중점개소중력수송자순배（자연순배）액담계통적성능화특점，분석출자연순배액담계통시은정、가고、저액담소모화교고효솔적계통。분배계통강저료공작온도，가이불용액담빙，감소료계통중적벌문。설계자연순배계통전，요진행계통적열화액압분석，재자연순배계통설계중，계통적분석화예측시비상중요적，인위통과분석화험증재능보증계통내임하지방증발솔도불초과10％，저가이명현감소설계풍험。자연순배액담계통이재다충저온설비중득도응용。
Liquid nitrogen distribution system includes forced circulation and gravity fed self-circulation ( natural circu-lation) system.This paper focus on the performance and characteristics of gravity fed self-circulation(natural circulation) system.Liquid nitrogen system of natural circulation is stable and reliable, with low system consumption of liquid nitrogen and higher efficiency.It will reduce working temperature,it does not use liquid nitrogen pump and reduce valves used in sys-tem.Before designing the natural circulation system,thermal and hydraulic analysis of system need to be conducted.In the natural circulation system design.System of analysis and prediction is very important,because the analysis and verification to ensure the evaporation rate is not exceeded 10%anywhere in system.It can significantly reduce design risk.Liquid nitrogen system of natural circulation has been applied in a variety of cryogenic equipment .