轮机英语（二三管轮）Lesson 16 Oily Water Separator.ppt

Unit2AuxiliaryMachineryLesson16OilyWaterSeparatorNewWordsandExpressionsresolution[?rez??lu??n]n.决议typeapprovaln.emulsion[??m?l?n]n.乳化coalescer[,k?u?les?]n.聚结剂；聚结器hydrophobe[ha?dr??f??b]a.疏水的；憎水的tensiden.表面活性剂flocculent[fl?kj?l(?)nt]n.絮凝剂wilful[?w?lfl]a.故意的NewWordsandExpressionsdivert[da??v??t]vt.转移adjacent[??d?e?snt]a.邻近的，毗连的non-hazardousa.无害的；无危险的keel[ki?l]n.（船的）龙骨TheIMOResolutionMEPC.107(49)hasbeenadoptedon18thJuly2004andappliestoalloilywaterseparatorsand15ppmalarmdevicestobeinstalledonboardshipsonorafter1stJanuary2005.TheIMOResolutionMEPC.107(49)describesindetailthetypeapprovalproceduresforoilywaterseparatorsand15ppmoilcontentalarmdevices(国际海事组织海上环境保护委员会第49次会议第107号决议详细描述了油水分离器和15ppm油分浓度报警装置的型式认可程序).ThemaindifferencebetweentheformerMEPC.60(33)ruleandthenewMEPC.107(49)one,istherequiredperformancecomplianceinvolvinganoil-in-wateremulsion.Theemulsioniscreatedbymixingthedifferenttestoilswithaspecifiedemulsifyingchemicalandapowderofironoxideundercontrolledconditionsforonehourbymeansofahigh-speedcentrifugalpump.Theoilywaterseparatormustthenbeabletobreakdowntheemulsionandextracttheoilyresidues.GeneralAnemulsionisamixtureoftwoormorecomponents.Inthisapplicationitinvolvesoilandwater.Inthismixturetheoilparticleisstillpresent,butdoesnotformdropletsandlargeragglomerations.Itrequiresmechanicalenergytomakeanemulsioni.e.ahigh-pressurewaterjet,high-speedcentrifugalpumps,allofwhicharetransformingtheoildropletsintoverysmallparticles.Thistypeofmechanicalemulsioncaneasilybehandledbyanefficientcoalescer,butinthepresenceofanemulsifyingchemicaltheoilparticlebecomeshydrophobebyionicandanionictensidesontheoilparticlesurface9高效的聚结器能够容易地处理此种类型的机械乳化油，但当存在化学乳化油时，油滴表面的离子型和阴离子型表面活性剂会使油滴变得疏水).Thesa