强激光与粒子束, 2018, 30 (12): 126001, 网络出版: 2019-01-18  

颗粒流电磁垂直输运装置物理设计

Physical design of a granular flow electromagnetic vertical transport device
作者单位
1 中国科学院 近代物理研究所, 兰州 730000
2 中国科学院大学, 北京 100049
3 四川大学 原子核科学技术研究所, 成都 610064
摘要
为满足中国加速器驱动的次临界系统(C-ADS)对于可靠性的要求, 计划采用基于螺线管的电磁垂直输运方案, 将经过质子束辐照后下落的散裂靶颗粒球再次输运至初始高度。基于解析方法对颗粒流垂直输运装置进行了分析和设计, 通过基于螺线管散热、径轴向颗粒流聚散焦效应和互感损耗等方面的考虑, 得到了适合于垂直输运颗粒流的螺线管驱动方式和螺线管构型及排布。利用基于本文解析方法的模拟程序, 对不同输运管道内径、不同螺线管驱动电流和不同螺线管构型和排布下的颗粒流垂直输运装置进行了模拟, 并从中筛选出了该装置的优化设计。模拟表明, 采用该优化设计的输运装置可将质量流量为19.6 kg/s的颗粒流垂直输运至40 m高度, 并满足颗粒球出口速度足够大的要求。
Abstract
The electromagnetic vertical transport scheme based on the solenoid is proposed to transport the falling spherical grains of the spallation target back to their original height after being irradiated by the proton beam, to meet the reliability requirement of the China Accelerator Driven Subcritical System. The mass flow rate of the granular flow and the velocity of the spherical grains at the exit are two critical figures of merit of the granular flow vertical transport device. In this article, such device was investigated and designed based on the analytical method. The drive mode, structure and arrangement of the solenoid suitable for vertically transporting the granular flow are obtained by taking account of heat removal, radial-defocus and axial-focus effects on the granular flow, mutual inductance power loss of the solenoid. An optimized design of the granular flow vertical transport device was obtained based on the simulation results, showing that the granular flow at the mass flow rate of 19.6 kg/s could be transported vertically by this device to the height of 40 m, with the velocity of the spherical grain at the exit being large enough.

黄燃, 何源, 李智慧. 颗粒流电磁垂直输运装置物理设计[J]. 强激光与粒子束, 2018, 30(12): 126001. Huang Ran, He Yuan, Li Zhihui. Physical design of a granular flow electromagnetic vertical transport device[J]. High Power Laser and Particle Beams, 2018, 30(12): 126001.

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