LAPSE:2021.0630
Published Article
LAPSE:2021.0630
Numerical Simulation Analysis of Main Structural Parameters of Hydrocyclones on Oil-Gas Separation Effect
Yong Li, Junrong Wang, Hui Ji, Ouyang Li, Songlin Nie
July 19, 2021
Gas pollution in marine lubricating oil systems is harmful to the normal operation of a ship, and is one of the main reasons for the decline of the performance of lubricating oil. In this research, a classic 75 mm hydrocyclone was selected as the oil−gas separation device. A hydrocyclone is a device that uses the density difference of the two-phase flow to separate the dispersed phase in the centrifugal force field. Compared with ordinary active oil−gas separators, hydrocyclones do not require additional power devices. After establishing the physical model of the hydrocyclone, the distribution characteristics of the flow field and oil−gas two-phase flow separation performance of the hydrocyclone were studied using computational fluid dynamics (CFD) technology. The influence of vortex finder diameter, vortex finder length, spigot diameter, cylindrical-part length, and cone angle on the oil−gas separation performance of the hydrocyclone were investigated. It was found that the vortex finder diameter and the spigot diameter have a significant influence on the oil−gas separation performance, whereas the vortex finder length, the cylindrical-part length, and the cone angle have little influence on its performance. Increasing the vortex finder diameter and reducing the spigot diameter can improve the gas separation efficiency. However, the liquid outflow from the vortex finder increases, which causes the liquid loss rate to increase. The presented research could lay a foundation for the optimal design of a hydrocyclone used for oil−gas separation of a marine lubricating oil system.
Keywords
computational fluid dynamics (CFD), hydrocyclone, oil-gas separation, separation performance, structural parameters
Suggested Citation
Li Y, Wang J, Ji H, Li O, Nie S. Numerical Simulation Analysis of Main Structural Parameters of Hydrocyclones on Oil-Gas Separation Effect. (2021). LAPSE:2021.0630
Author Affiliations
Li Y: Science and Technology on Thermal Energy and Power Laboratory, Wuhan Second Ship Design and Research Institute, Wuhan 430064, China
Wang J: Science and Technology on Thermal Energy and Power Laboratory, Wuhan Second Ship Design and Research Institute, Wuhan 430064, China
Ji H: Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing 100124, China [ORCID]
Li O: Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing 100124, China
Nie S: Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing 100124, China
Journal Name
Processes
Volume
8
Issue
12
Article Number
E1624
Year
2020
Publication Date
2020-12-09
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8121624, Publication Type: Journal Article
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LAPSE:2021.0630
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doi:10.3390/pr8121624
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Jul 19, 2021
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Jul 19, 2021
 
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Calvin Tsay
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