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

本项目的目的是研制项目成员提出的多层叠片铁轭涡流式强磁场发生器的实用模型，研究并实现一种新型的用于快堆液态钠输送的聚磁式电磁泵。本课题的主要研究成果如下：1.铁轭式多层涡流强磁场发生器（1）实际发电机的制作：利用新型发电机，我们在50 Hz时产生了5.15 T的磁通密度，在50 Hz时产生了3.15 T的磁场。SST（60 Hz，直径40 mm）。50 =当施加3，000V AC电压时的高度。磁通密度的值与设计值相同。(2)我们对小动物（鱼类和昆虫）进行了生物磁实验，并观察了动物的运动功能。到目前为止，我们无法获得任何显着的效果。我们将改变持续时间、次数和磁通密度的大小等条件，在以后的实验中继续进行.聚磁式电磁泵（1）利用涡流的聚磁效应，制作了聚磁式电磁泵的小型模型，并对其基本特性和结构进行了研究。我们的新装置具有1.7倍以上的推力比以前的环形泵。(2)通过对电磁泵的三维轴对称模型进行数值分析，研究了电磁泵中导流板和铁轭的形状。在调研的基础上，我们设计并制造了一台实用型的液钠电磁泵（OND-1000）。(3)我们计划和准备在快堆中对电磁泵（OND-1000）进行输送冷却材料液体钠的试验。我们将在今年内取得结果。

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.