| Summary: | Considering the inadequacy of current testing methods in satisfying the testing requirements of filter elements for lubricating oil separation in gas storage, this research aims to establish corresponding testing methods and device in the laboratory. The operational parameters in the laboratory encompass the operational temperature and the range of gas volume processed by the filter element on site.The testing device was utilized to investigate the influence of different testing methods and experimental liquids on the test results of the filter element performance, and was further used to analyze the evaluation method of the filter element performance under high-pressure conditions. The findings indicate that(1) the concentration and particle size distribution of liquid drops in the upstream gas of the field oil fail to satisfy the current required standards that makes the counting method applicable, therefore the counting method is not appropriate for evaluating the filtering performance of the filter element for lubricating oil separation in gas storage;(2) the filtering efficiency of the filter element obtained in laboratory is found to be compatible with the results obtained during field use, so the established testing method guarantees the effectiveness of the filter element for lubricating oil separation in evaluating the filtering performance;(3) the drainage metering method should be used as a current approach for evaluating the performance of high-pressure field oil filter element.
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