Numerical Simulation Of Electrical Field And Flow Field For Rare Earth Electrolyzer

Rare earth electrolyzer exists the complex field of physics; Electrical field is the source of other physical field. Thermal field and flow field are the important factors to determine whether the rare earth electrolytic cell to carry out. How to design the rational design of the flow field and the thermal field is the key factor to decide whether the electrolyze design is good or bad, so the research of the electrical field, the flow field is very important.This article makes the following specific tasks:1)This article improves the existing 3 KA electrolyzer done to become buried anode non-adherent-cell anode and the whole buried-cell. Through the electrical field result, we find that no matter whether the anode approach to wall, the voltage of all buried wall of the cell is 1.3 V lower than melt under the same conditions by their comparative study.2)This article analyzes that the different anode electrode and the different height how to impact the entire buried non-adherent anode-cell's electric field. The increase of the anode diameter will increase the cell voltage and current strength will be reduced, the best simulation of the anode diameter is 22 cm; electrode high degree of change greatly impacts the cell voltage, we get the result that the best simulation of the electrode height is 22 cm. We use the height of 22 cm, anode diameter of 22 cm's entire buried electrolyzer for the physical model to calculate the flow field, and get the result that the flow of the entire buried non-adherent anode-cell is better than all buried anode-cell.3)use the same method to simulate the 10 KA-cell electrical field, and analyzes the impact on the electrical field in different insertion depth, pitch and a very different anode consumption.We get the result that each insertion depth increases the additional 2 cm, melt voltage reduces the 0.6 V around.4)we use the anodic current density reached through the simulated cathode to get the speed of gas at different heights and gas volume function, the calculation result is used as the initial condition of the flow field, we get the flow simulation results that only the bubble impacts using the FLUENT software. And analyzes the impact on flow field in different pitch depth, found that the double vortex diameter formed in the middle place of anode increases with the increase of the distance between cathode and anode.With the insertion depth increased, the anode formed around the vortex will be increasingly approach to anode.5)Through the analysis of inline 10 KA electrolyzer heat balance, we get that we can reduce the open cell area and the cell surface temperature to reduce the loss of some heat.