통합형 인-라인 오일 모니터링 센서의 제철설비 현장 적용사례
Case Study on Integrated In-line Oil Monitoring Sensor for Machine Condition Monitoring of Steel Making Industry
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초록
One of the important trends for condition monitoring in the 21st century is the development of smart sensors that will permit the cost-effective continuous monitoring of key machine equipments. In this study, an integrated in-line oil monitoring sensor assigned for continuous in situ monitoring multiple parameters of oil performance is presented. The sensor estimates oil deterioration based on the information about chemical degradation, total contamination, water content of oil and oil temperature. The oil oxidation is estimated by “chromatic ratio”, total contamination is measured by the changes in optical density of oil in three optical wavebands (‘Red’, ‘Green’ and ‘Blue’) and water content is evaluated as relative saturation of oil by water. In order to evaluate the sensor's effectiveness, the sensor was applied to several used oil samples in steel making industry and the results were compared with those measured by standard test methods.
Abstract
One of the important trends for condition monitoring in the 21st century is the development of smart sensors that will permit the cost-effective continuous monitoring of key machine equipments. In this study, an integrated in-line oil monitoring sensor assigned for continuous in situ monitoring multiple parameters of oil performance is presented. The sensor estimates oil deterioration based on the information about chemical degradation, total contamination, water content of oil and oil temperature. The oil oxidation is estimated by “chromatic ratio”, total contamination is measured by the changes in optical density of oil in three optical wavebands (‘Red’, ‘Green’ and ‘Blue’) and water content is evaluated as relative saturation of oil by water. In order to evaluate the sensor's effectiveness, the sensor was applied to several used oil samples in steel making industry and the results were compared with those measured by standard test methods.
참고문헌 (6)
- 공호성, "기계 상태진단을 위한 인-라인형 오일 모니터링 스마트 센서", 한국윤활학회지, 24(3), pp.111~121 (2008), 한국윤활학회
- "통합형 인라인 오일 모니터링 장치, 대한민국 특허출원번호 10-2008-0015944 (2008), USA Patent application No. 12", 389,942, 2009
- 공호성, "오일 열화 진행에 따른 오일의 색채 특성 변화", 한국윤활학회지, 24(1), pp.7~13 (2008), 한국윤활학회
- Ossia, C.V, "On the Use of Intrinsic Fluorescence Emission Ratio in the Characterization of Hydraulic Oil Degradation", Tribology International, 41, pp.103~110 (2008)
- Ossia, C.V, "Chromatic Parameters in the Condition Monitoring of Synthetic Hydraulic Oils", KSTLE International Journal, 8(1), pp.1~6 (2007)
- ASTM D2070-91, "Standard Test Method for Thermal Stability of Hydraulic Oils", ~