关键词: 平面感应电磁泵, 导电管壁, 解析计算, 端部效应, 数值模拟

Abstract: The planar induction electromagnetic pump is a key driving device for pumping liquid metals in metallurgy,foundry and nuclear reactors. Based on the electromagnetic field theory, a one-dimensional mathematical model of the longitudinal end effect and the vortex effect of the conductive tube wall of the planar induction electromagnetic pump were established, and the mathematical expressions of the air gap magnetic field, electromagnetic force field and electromagnetic pressure difference in the liquid metal pumping trench were derived, followed by the analysis of the effects of the longitudinal end effect and the vortex effect of the tube wall on the air gap magnetic density, current density and electromagnetic force density distribution. The COMSOL multi-physics field simulation software was used to establish a simulation model of the electromagnetic and fluid coupling of a planar induction electromagnetic pump, and the electromagnetic and output characteristics of the electromagnetic pump were calculated. The consistency of the simulation and analytical calculation results mutually verifies the accuracy of the established model, and lays the theoretical foundation for the optimal design of the planar induction electromagnetic pump.