통합형 오일 정제 시스템의 개발

• Published in: Tribology and Lubricants Vol. 38; no. 4; pp. 121 - 127
• Main Authors: 홍성호(Sung-Ho Hong), 이경희(Kyung-Hee Lee), 정남화(Nam-Wha Jeong)
• Format: Journal Article
• Language: Korean
• Published: 한국트라이볼로지학회 2022
• Subjects: 기계공학; Oil filter(오일 필터); Oil purification(오일 정제); Lubricant(윤활유); Oil flushing(오일 플러싱); Vacuum chamber(진공 챔버)
• ISSN: 2713-8011; 2713-802X

This study presents the development of an integrated oil purification system consisting of moisture removal, oil flushing, and oil filtering devices. In this system, the oil flushing device is combined with a micro-bubble generator. Oil purification is necessary for ensuring the high performance of the lubricant through the efficient removal of contaminants and thus enables good maintenance of mechanical systems. The developed purification system removes moisture, varnish, and solid particles. Moreover, during oil purification, the oil flushing device separates foreign materials and contaminants remaining in the lubricating oil piping or mechanical systems. The microbubble generator, which is combined with the oil flushing device, can separate harmful contaminants, such as sludge, wear particles, and rust, from piping or lubrication systems through the cavitation effect. Moisture is removed using a double high-vacuum chamber, while sludge and varnish are removed via electro-absorption using a high-voltage generator. Additionally, the total maintenance cost of the system is reduced through the use of domestically fabricated cartridge filters composed of glass fiber and cellulose. The heater, which maintains the temperature of the lubricant at 60℃, can process 41,000 L of lubricant simultaneously. Multiple tests confirmed that the proposed integrated purification system exhibits good performance in oil flushing and removal of water and varnish.