The molten salt reactor which normally uses fluoride salts, chlorides and potassium salts as fuel and coolant has advantages in operation sustainability, economic value and security. It is regarded as an advanced nuclear reactor and is currently under development and design. One of the challenging issues for the reactor is their pumping system. Characteristics of molten salts allow them to be pumped by using electromagnetic force, but their low electrical conductivity requires high and compact magnetic field environment. In consequence, a DC electromagnetic pump with superconducting coils was designed and analyzed in this article. In order to study the dynamic behavior of molten salts under the interaction of the compact magnetic flux generated by superconducting coils with the iron yoke. A three-dimensional pumping system has been built. The superconducting coils are modeled by using the E-J constitutive law together with the T-A formulation based finite element method, while the studies of magneto-hydrodynamic characteristics of liquid molten salts are analyzed through the coupling of electromagnetism and fluid dynamics. Studies show that the electromagnetic pump has superior magneto-hydrodynamic properties with the operation of superconducting coils, under which condition liquid molten salts are driven smoothly through the channel of the pump.

通常使用氟化物盐、氯化物和钾盐作为燃料和冷却剂的熔盐反应堆在运行可持续性、经济价值和安全性方面具有优势。它被认为是先进的核反应堆，目前正在开发和设计中。反应堆面临的挑战之一是其泵送系统。熔盐的特性使其可以利用电磁力进行泵送，但其低电导率需要高而紧凑的磁场环境。因此，本文设计并分析了一种带有超导线圈的直流电磁泵。为了研究超导线圈产生的致密磁通量与铁轭相互作用下熔盐的动态行为。已经建立了一个三维泵送系统。采用EJ本构法和基于TA公式的有限元法对超导线圈进行建模，通过电磁学和流体动力学耦合分析液态熔盐的磁流体动力学特性研究。研究表明，电磁泵在超导线圈的运行下具有优越的磁流体动力学特性，在此条件下，液态熔盐被平稳地驱动通过泵的通道。