储气库除油器滤芯过滤性能检测方法

Testing methods of filtration performance of filter element for lubricating oil separation in gas storage

针对现有检测方法无法满足储气库除油器滤芯性能测试要求的现状,在实验室内建立相应检测方法与装置,其操作参数可覆盖现场实际运行温度与滤芯处理气量范围。利用所建检测装置分析不同检测方法与不同实验液体对滤芯性能测试结果的影响,进一步分析了现阶段高压工况下除油器滤芯性能评价方法。结果表明:现场除油器上游气体内液滴浓度及粒径分布与现有标准中计数法检测条件差别较大,导致计数法不适于评价储气库除油器滤芯过滤性能;实验室内检测所得滤芯过滤效率与现场使用结果较为吻合,所建立的检测方法可有效评价除油器滤芯过滤性能;排液计量法宜作为目前高压现场除油器滤芯性能评价手段。

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(l)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 flter element for lubricating oil separation in gas storage;(2)the filtering efficiency of the flter 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.