MVR蒸发与多效蒸发技术的能效对比分析研究高丽丽

Oct．20123210ModernChemicalIndustry201210MVR(常州大学机械工程学院，江苏常州213016)。15t/hMVR。MVR783.1420.1285.7%。MVR24%。TQ114A0253－4320201210－0084－03EnergyefficiencycomparativeanalysisonMVRandmulti-effectevaporationtechnologyGAOLi-liZHANGLinDUMing-zhaoCollgelofMechanicalEngineeringChangzhouUniversityChangzhou213016ChinaAbstractDuetothehighenergyconsumptionintheprocessofevaporationandcondensationofaminoacidssolutionanewenergy-savingtechnologyandequipmentbasedonmechanicalvaporrecompressionisputforward．Theworkingprincipleofthenewenergysavingtechnologyformechanicalvaporrecompressionevaporationandcondensationisintroduced．Takingtheevaporationandcondensationof15t/haminoacidsasanengineeringexampletheenergyefficiencycomparativeanalysisonMVRandtraditionalmulti-effectevaporationtechnologyiscarriedout．Theresultsshowthatcomparingwithtraditionalmulti-effectevaporationtheMVRtechnologycansave7.8314millionyuanofheatingsteamfeesand201200yuanofsteamcondensedwaterfeeseveryyearwhichareequivalenttosaving85.7%ofthestandardcoal．InadditioninthesameevaporationconditionstheheatwhichMVRevaporationequipmentsneededisonly24%oftriple-effectevaporation．Keywordsmechanicalvaporrecompressionaminoacidstriple-effectevaporationenergyefficiencyenergysaving2012－05－171985－1969－、、[e-mail]。、、、、、。。、。。。1t0.3t15t/h200/t13007200h648。。mechanicalvaporrecompressionMVR。11。·48·DOI:10.16606/j.cnki.issn0253-4320.2012.10.012201210MVR。。。1—2—3—4—5—6—7—8—9—10—11—12—13—1。。22。、。MVR1－3。MVR。MVR4。1—2—3—4—2MVR315t/hMVR。W=15t/hx0=1%T0=50℃x1=3%T1=70℃T2=78℃。3.1W=F1－x0/x11DHs+Fh0=Dhc+WH'+F－Wh1+QL2524.437kg/s。0.421.864kg/s。200/t7200h4.437×3600÷1000×0.42×7200×200=966.06。4400r/minPsh=QP/1000η=390.86kW30.65/kW·h7200hMVR·58·3210390.86×0.65×7200=182.92MVR783.14。3.26GB=W3HK－CBTK/CBTK－tH4T3=70℃tH=20℃1.0∶1.1∶1.2。69.74t/h。0.4/t169.74×0.4×7200=20.09。MVR20.09。3.3MVR。Q=q1E+q2E+q3E+q'－q5q1Eq2Eq3Eq'q。q1E840.78×103kJ/hq2E1880.97×103kJ/hq3E11551.5×103kJ/hq'q4477.8×103kJ/h。Q=9795.45×103kJ/h。MVR。MVR。Q=q1V+q2V+q3V+q'－q6q1Vq2Vq3Vq'q。q1V4910.49×103kJ/hq2V1180.97×103kJ/hq3V1180.97×103kJ/hq'q4477.8×103kJ/h。MVRQ'=2213.66×103kJ/h。MVR24%。3.4MVRMVR。1kW·h0.404kg1kg0.145kgMVR11.14kt。17kt。MVR85.7%。415t/hMVRMVR783.1420.1285.7%。MVR24%。MVR、、MVR。1Al-JuwayhelFEl-DessoukyHEttounyH．AnalysisofsingleeffectevaporatordesalinationsystemscombinedwithvaporcompressionheatpumpsJ．Desalination1997114253－275．2AybarHikmetS．AnalysisofamechanicalvaporcompressionJ．Desalination2002142282－286．3HishamEttouney．Designofsingle-effectmechanicalvaporcompres-sionJ．Desalination20061901－15．4．J．200928SI187－189．5．M．1987．6．M．1988145－163．■·68·