用于钠泵的螺管型超导磁体设计与实验  

Design and Experiment of Solenoidal Superconduct Magnet Applied to Sodium Electromagnetic Pump

作　　者：杨志达[1] 韩伟实[1] 武玉[2] 

机构地区：[1]哈尔滨工程大学核科学与技术学院,150001 [2]中国科学院等离子体物理研究所,合肥230031

出　　处：《核动力工程》2007年第4期97-100,共4页Nuclear Power Engineering

摘　　要：本文对钠金属电磁泵的螺管型超导磁体部分进行了详细设计和实验研究。磁体设计指标为水平室温孔长度600mm,直径160mm,中心场磁感应强度5T。对超导磁体所用的超导线进行了短样测试,当温度为4.2K、磁感应强度为5T时,临界电流为464A,大于工作电流。磁体经过绕制、真空压力浸渍工艺后进行10次失超锻炼,在失超电流97 A的电流下测试,磁体中心磁感应强度达到4.66T。若进一步降低励磁速率,磁体中心磁感应强度预计可以达到5T左右,可以满足钠金属电磁泵的要求。In this paper, solenoidal superconduct magnet which is applying to sodium electromagnetic pump is designed in detail and experimentally studied. The room temperature aperture length of this magnet is 600mm, the diameter is 160mm, and the magnetic induction intense in the center field （B） is 5T. The short superconduct thread sample is tested. The critical current is 464 A when the temperature is 4.2K and the B is 5 T, which is larger than the design current. The magnet is quenched training for ten times after reel and vacuum pressure infuser, then the magnet center B reaches 4.66T when the quench current is 97 A. If reducing the excitation velocity, the center B can reach 5T, satisfying the need of sodium electromagnetic pump.

关 键 词：快中子反应堆 超导磁体 钠金属电磁泵 失超 

分 类 号：TL3[核科学技术—核技术及应用]