Abstract:Based on study of flow field, the electro-magnetic field, and electro-thermal field of 30 kA electrolytic cell, the structural parameters of 40kA electrolysis cell were optimized using relationship between current intensity and structural parameters from 30 kA electrolytic cell. Distribution of flow field, electro-magnetic field and electric- thermal field in 30 kA electrolytic cell was compared through the coupling study of electric-heat-magnetic-flow field in 40 kA electrolytic cell. The results show that resistance voltage of the optimized 40 kA electrolytic cell reduces 0.33 V. Temperature distribution of electrolyte in electrolytic cell does not change obviously. Increase of magnetic field strength is less than 10%. Eddy current range of flow field reduces. The coupling study of electro-thermal-magnetic-flow field proves that magnetic-flow field distribution of the optimized 40 kA electrolytic cell is more stable than that of 30kA electrolysis cell under the condition of energy balance.