Developments of Multi-Laminated Eddy-Current Type AC High Magnetic Field Generator with Iron Yoke and its Applications

本项目的目的是对项目成员提出的带铁轭的多层涡流型强磁场发生器的实用模型进行开发，并研究和实现一种用于快中子增殖反应堆输送液钠的新型磁通浓缩型电磁泵。本课题的研究成果总结如下：1。(1)实用发电机的制作：采用新型发电机，在50hz时产生5.15T的磁通密度。海温为60hz，体积直径为40mm。和50= 3，OOOV交流电压时的高度。磁通密度值与设计值一致。(2)对小动物（鱼类和昆虫）进行了生物磁学实验，观察了动物的运动功能。到目前为止，我们还没有取得任何显著的效果。我们将改变持续时间、时间数和磁通密度强度的条件，在以后的实验中继续进行。(1)建立了利用涡流的磁通浓缩效应的磁通浓缩型电磁泵的小型模型，并对其基本特性和结构进行了研究。我们的新装置的推力比以前的环空泵大1.7倍。(2)通过对电磁泵三维轴对称模型的数值分析，研究了集中磁导板和铁轭的形状。在调研的基础上，我们设计并生产了液态钠电磁泵（OND-1000）作为实用模型。(3)计划并准备了电磁泵（OND-1000）在快中子增殖反应堆中作为冷却材料输送液态钠的试验。我们将在今年内得到结果。

The purposes of this project are to develop the practical model of the multi-laminated eddy-current type high magnetic field generator with iron yoke proposed by the project member and to research and realize a new flux concentrating type electromagnetic pump which is used for transferring liquid sodium in the fast breeder reactor. The research results in the project are summarized as follows :1. Multi-laminated eddy-current type high magnetic field generator with Iron yoke(1) The production of the practical generator : By the new generator, we generated the flux density of 5.15T for 50 Hz and the 3. SST for 60 Hz in the volume of 40mm diameter. and 50= height when 3, OOOV AC voltage is applied. The values of the flux density are identical to the design values.(2) We have made the biomagnetic experiments for small animals (fishes and Insects) and observed the motor functions of animals. Until now, we could not obtain any remarkable effects. We will change the conditions of the duration time, the number of time and the strength of flux density and then continue to make experiments in future.2. Flux-concentrating type electromagnetic pump(1) We made the small model of the flux-concentrating type electromagnetic pump which use the flux-concentrating effect by eddy currents and then investigate the fundamental characteristics and the structure. Our new device has 1.7 times thrust force more than the previous annular type pump.(2) The shape of the conducting plate for concentrating flux and the iron yoke are investigated by numerically analyzing tie 3-D axisymmetrical model of the electromagnetic pump. Based on investigation, we design and product the electromagnetic pump (OND-1000) for liquid sodium as a practical model.(3) We plan and prepare for testing the electromagnetic pump (OND-1000) as transferring liquid sodium as cooling material in a fast breeder reactor. We will obtain the result within this year.