压缩机润滑油雾滤芯过滤性能分析与改进研究  

Analysis and improvement of filtration performance of filter element for compressor lubricating oil mist

作　　者：张云德[1] 王龙[1] 侯亚龙[1] 安卫兵[1] 畅斌[2,3] 陈锋 Yunde ZHANG;Long WANG;Yalong HOU;VWeibing AN;Bin CHANG;Feng CHEN(Second Gas Production Plant of Changqing Oilfield Branch Company Ltd.,PetroChina,Yulin,Shaanxi 719000,China;State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University,Xian,Shaanxi 710069,China;School of Civil Engineering,Shaanxi Polytechnic Institute,Xianyang,Shaanxi 712000,China;College of Mechanical and Transportation Engineering,China University of Petroleum,Beijing 102249,China)

机构地区：[1]中国石油长庆油田分公司第二采气厂,陕西榆林719000 [2]大陆动力学国家重点实验室,西北大学地质学系,陕西西安710069 [3]陕西工业职业技术学院土木工程学院,陕西咸阳712000 [4]中国石油大学(北京)机械与储运工程学院,北京102249

出　　处：《过程工程学报》2023年第3期421-429,共9页The Chinese Journal of Process Engineering

基　　金：陕西省自然科学基金资助项目(编号:2022JQ-290)。

摘　　要：利用现场高压和实验室常压滤芯性能评价装置,对比了不同工况下的滤芯过滤性能,分析了液体物性和油雾浓度对滤芯过滤性能的影响规律,提出了滤芯改进方法并进行了效果验证。结果表明,由于气液相互作用改变,高压下滤芯过滤效率相比常压略低,但常压工况过滤性能变化规律能反映现场实际运行性能。与气体流量相比,液体黏度对中效滤芯的过滤效率影响更大,且滤芯在过滤高黏度液体时才会出现压降的显著上升。油雾浓度对中效滤芯的压降影响受液体黏度控制,高黏度时压降随油雾浓度升高而升高,但低黏度时压降基本不随油雾浓度变化。由于流量对液滴扩散捕集作用的影响,低流量时滤芯对高黏度液体的过滤效率随油雾浓度降低反而升高。通过调整滤芯内部的滤材组成及排布方式,可实现小尺寸液滴的高效捕集,对癸二酸二辛酯液滴的过滤效率相比原滤芯至少提升50%。研究结果对于指导天然气储运过程中滤芯性能提升与机理认识具有重要意义。The filtration performance of the filter element was compared by using the performance evaluation devices for high-pressure condition in the field and atmospheric pressure in the laboratory.The influences of the physical properties of liquid and the concentration of oil mist on the filter element's filtration performance were analyzed.An improvement method of the filter element was proposed and the improving effect was verified.The results showed that the filtration efficiency of filter element under high pressure was slightly lower than that under atmospheric pressure 236050563020 Test110 oTest2 Prefilter Secondary ATest3 filter 0 Compressor inlet Compressor outlet Filter outlet Compressor Primaryfilter Test point Protectivefilter Flowmeter Valve Fan 100 Vent 1009080 Filter 8060 uo1407020 Originalfilter Computer o-Developed filter 60 OPC 0.250.5124816 Compressed 50 Dropletdiameter/um air 40 Original filter Cleanair Developed filter 30 Oil mist generator 020406080 Flowrate/(m’/h)due to the change of gas-liquid interaction,but the change rule of filtration performance under atmospheric pressure could reflect the actual operation performance on-site.Compared with the gas flowrate,the liquid viscosity had a greater impact on the filtration efficiency of the medium efficiency filter element,and the pressure drop of filter element significantly increased only during filtration for liquid with high viscosity.The effect of oil mist concentration on the pressure drop of such filter element was controlled by the liquid viscosity.The pressure drop increased with the increase of oil mist concentration at high viscosity,but did not change at low viscosity.Due to the influence of flowrate on droplet capture by diffusion effect,the filter efficiency for high viscosity liquid increased with the decrease of oil mist concentration at low flowrate.By adjusting the composition and layout of the filter material inside the filter element,it could achieve efficient capture of small droplets,and the filtration efficiency for dioctyl

关 键 词：液体 过滤 油雾 分离 压降 

分 类 号：TE974[石油与天然气工程—石油机械设备]