Abstract:

Electrostatic spinning is one of the main methods of producing nanofiber, the structure of the nozzle and assembly decides the spinning quality and production, and the reasonable design of size can effectively improve the spinning efficiency. The selection research on ten-needle inline nozzle is performed by using numerical simulation method. Combing the actual requirement of engineering, total 180 orthonormal models including six groups of needle diameters, six groups of needle lengths and five groups of inlet flux are calculated. Then the partial flow and drift rate in nozzle structure are obtained under the conditions of different inlet flow, different needle diameters and different needle lengths. The influence of nozzle diameter and length on exit drift rate is analyzed, and according to different working conditions, the reasonable size selection scheme of nozzle structure is given.

Key words: drift rate, numerical simulation, partial flow, size selection, nozzle