Design of charge injection electrode and evaluation of oil purification effect of balanced charge oil purification device

As a key step of the purification of balanced charged oil, the charging process of impurity particles affects the final purification effect of the balanced charge oil purification device. To enhance the charging effect of impurity particles, a rectangular fin electrode is designed. The numerical simulation shows that the particle charge performance is excellent, compared with the traditional linear electrode. The ideal structure, size, torsion angle and parameter range of ideal working conditions (voltage and flow rate) of the rectangular fin electrode are obtained. The experiment shows that the experimental device equipped with rectangular fin electrode has better lubricating oil filtering effect. The best experimental operating parameters are voltage 14 kV and purification flow 3 L/min. After 120 minutes of purification, the contamination degree of lubricating oil is NAS6, and the removal rate of impurity particles reaches 97%, which meets the purification standard.