极片干燥, 数值模拟, 锂电池, 结构改进

To increase the working performance of a dryer,based on flow field numerical simulation method and using field test data as the boundary conditions and using k-ε two-equation turbulence model as the control equation,a velocity field of air was studied.According to the steady state velocity field of air and the manufacturer’s modification requests,the structural modification of the dryer was carried out. The comparative study on the flow characteristics between the two structures was developed and a new structure was established. Lastly, the design principles about the position, dimension and quantity of air inlet and air outlet were proposed,which was propitious to the uniform distribution of the velocity field.It provides important basis for increasing the capacity usage ratio and the drying quality of film.