500机械蒸汽再压缩蒸发系统的性能分析顾承真

CHEMICALINDUSTRYANDENGINEERINGPROGRESS201433130111212118162210009MVRMVRAspenPlus581.82.2AspenPlusTQ51A10006613201401003006DOI10.3969/j.issn.1000-6613.2014.01.006PerformanceanalysisofmechanicalvaporrecompressionevaporationsystemGUChengzhen1MINZhaosheng1HONGHousheng121CollegeofLifeScienceandPharmaceuticalEngineeringNanjingUniversityofTechnologyNanjing211816JiangsuChina2NanjingHuikeBioengineeringEquipmentCorporationNanjing210009JiangsuChinaAbstractMechanicalvaporrecompression(MVR)evaporationsystemisanewenergyefficientevaporationtechnology.Ithasseveralunitdevicesthesystemstabilityandenergyefficiencydependoneachnodecontrolsuchasfeedtemperatureevaporationpressuretheratioofvaporcompressionandcondensationtemperature.Iftheoperationalconditionsarenotappropriatetheevaporationefficiencywillbereducedandtheequipmentandpipingwillbedamaged.ThispaperestablishedaMVRevaporationprocessflowthatcanfullyuseenergy.QualityandenergyofeachoperationnodewerecalculatedandasystemofsimulationprocesswasestablishusingtheAspenPlussoftware.Thisresearchinvestigatedthemassflowofcyclicsteamandthemassflowofaddedwaterunderdifferentfeedtemperaturescondensationtemperaturestheratioofvaporcompressionandevaporationpressurebyanalyzingcontrollingunitoperations.Theresultsshowedthatrawmaterialsreachedtheoptimalconditionsinsaturatedliquidstemperatureofthecondensatetotheevaporationtemperatureat58wasmosteffectiveforthesystemandthevaporcompressionratioofcompressorinthe1.82.2wasmorereasonable.Theheatfromcondensateandtheconcentratecanbeusedtopreheattherawmaterialandtheaddedwatercanbedrawndirect[e-mail][e-mail]131Keyswordsmechanicalvaporrecompression(MVR)AspenPlussimulationperformanceanalysisMVR[1-2]MVR[3-5][6][7-8][9]MVR[10-12]MVR[13][14]MVR[15]MVRMVR30%70%[16-17]MVR1MVRMVR[18]MVRMVR[19-21]2MVRMVR[22]3[23]MVRMVRMVR[16-1824]MVR1MVR1.11MVR12201433321MVR12MVR1.2AspenPlus[25]2AspenPlusVAP1VAP32MVRHEATERCOOLERheatersteamerFlash[26]2q0TsPsh1qsPsTshs[27]pol1mkpol=11mmkk1meLdsPP210wsmeL111mmmWRTm2Pd3Td[28]hdqwTwPwhwPdhas1ddssmmTPTP34q()qhqhqqh4133qt5twsqqq5TcPdhcQ6tasc()Qqhh6QPshqq's7q's01ss0sq()qhQqhqqh7cop80QcopW83Ps30kPa50kPa70kPa=1.21.41.61.82.02.22.42.65000kg/h1000kg/h3334585%54201433345657MVR6786782220%1.82.281354AspenPlusMVR1MVR2583MVR1.82.24h1——kJ/kghas——kJ/kghc——kJ/kghd——kJ/kghs——kJ/kghw——kJ/kgPd——kPaPs——kPaPw——kPaQ——kJ/hq0——kg/hqs——kg/hq's——kg/hqt——kg/hqw——kg/hRw——J/(kg·)Tc——KTd——KTs——KTw——KW0——kJ/h[1].MVR[J].20123558.[2]EdmundasZavadskasRaslanasSauliusKaklauskasArtūras.TheselectionofeffectiveretrofitscenariosforpanelhousesinurbanneighborhoodsbasedonexpectedenergysavingsandincreaseinmarketvalueTheVilniuscase[J].EnergyandBuildings2008404573-587.[3].[J].2010442-44.[4].[J].2012515-16.[5].[J].2009631-34.[6].[J].20126361859-1864.[7].[J].2003527-28.[8].MVR[J].20128102-164.[9].[D].2012.[10].[J].20124312-315.[11]TuanCChengYYehYetal.Performanceassessmentofacombinedvacuumevaporator-Mechanicalvaporre-compressiontechnologytorecoverboilerblow-downwastewaterandheat[J].Sustain.Environ.Res.2013232139.[12]KanshaYasukietal.Self-heatrecuperationtechnologyforenergysavinginchemicalprocesses[J].Industrial&EngineeringChemistryResearch200948167682-7686.[13].MVR[J].20122508-515.[14].MVR[J].20121084-86.[15].[J].2006240-41.[16].[J].200928S1187-189.[17].[J].200928S1358-360.[18].[D].2012.[19].[J].200626-9.[20].[J].20134912142-146.[21].[J].2006161-64.[22]AlexanderKDonohueBFeeseTetal.FailureanalysisofanMVR(mechanicalvaporrecompressor)impeller[J].EngineeringFailureAnalysis20101761345-1358.[23]LiangLHanDMaRetal.Treatmentofhigh-concentrationwastewaterusingdouble-effectmechanicalvaporrecompression[J].Desalination2013314139-146.[24].[J].2012229-32.[25].AspenPlus[J].2011147-50.[26]SassnerPerMatsGalbeGuidoZacchi.Techno-economicevaluationofbioethanolproductionfromthreedifferentlignocellulosicmaterials[J].BiomassandBioenergy2008325422-430.[27].[M].2001.[28].[M].2001.