含油污水气浮旋流装置结构优化与性能试验

书油气田开发工程含油污水气浮旋流装置结构优化与性能试验*刘新福1王春升1刘春花2陈家庆3尚超1(1.中海油研究总院技术研发中心2.中国石油大学(华东)机电工程学院3.北京石油化工学院机械工程学院)摘要:为了大幅度减少含油污水分离设备空间占用并降低生产成本，结合旋流和气浮技术研发出紧凑高效型气浮旋流分离装置。通过建立含油污水中分散颗粒的浮升模型，完成气浮旋流装置关键部件的结构设计，依据该装置浮升特性分析和现场性能试验，对其结构和操作参数进行探索和优化。研究结果表明，油滴粒径的增大使得所需的罐体内径减小，而流量的提升会使得入口管径增大，为除掉小粒径油滴应尽量降低表面水力负荷率;装置的除油率随回流量的增加先提升后下降，并随气泡发生量的增大而逐步提高，且在流量波动时也能够保持在80%左右;选取操作参数时需综合油滴与气泡碰撞、粘附的概率及泵耗等因素。关键词:气浮处理;旋流分离;含油污水;浮升特性;性能试验中图分类号:TE992.2文献标识码:Adoi:10.16082/j.cnki.issn.1001－4578.2015.06.021StructuralOptimizationandPerformanceTestofAir-spargedHydrocycloneforWaterDe-oilingLiuXinfu1WangChunsheng1LiuChunhua2ChenJiaqing3ShangChao1(1.Ｒesearchanddevelopmentcenter，CNOOCＲesearchInstitute;2.CollegeofMechanicalandElectronicEngineering，ChinaU-niversityofPetroleum(Huadong);3.SchoolofMechanicalEngineering，BeijingInstituteofPetrochemicalTechnology)Abstract:Tominimizetheoilywaterseparationequipmentfootprintandreducethecosts，acompact，highefficiencyair-spargedhydrocyclonedeviceisdevelopedbythecyclonicseparationandair-spargetechnology.Thestructuraldesignofthekeycomponentofair-spargedhydrocyclonedeviceiscompletedbasedonanestablishedfloatingmodelofdispersedparticlesinoilywater.Thestructureandoperatingparametersofthedeviceisexploredandoptimizedaccordingtotheliftingcharacteristicsandfieldperformancetestofthedevice.Theresultsshowthatthelargertheoildropletsizeis，thesmallertheinnerdiameterofthetankisrequired.Alargerinletdiameterwillbeneededwiththeincreaseofflowrate.Toremovethesmallsizedroplets，thesurfacehydraulicloadingrateshouldbeminimized.Thede-oilefficiencyofthedeviceincreaseswiththeincreaseofrecirculatingrate，butde-creaseswhentherecirculatingratereachestoacertainlevel.Thede-oilingefficiencyincreaseswiththeincreaseofbubblegenerationamount，andwouldmaintainaround80%withthefluctuationoftheflowrate.Factorslikecolli-sionofoildropletsandbubbles，theprobabilityofadhesionandpumpconsumptionneedtobeconsideredinselec-tingtheoperatingparameters.Keywords:air-spargeprocess;cyclonicseparation;oilywater;buoyantcharacteristics;pe