E0201换热器说明书

Heat Exchanger Thermal Design Shell&Tube V8.4File: c4.EDR Printed: 2017/7/15 at 11:36:58Heat Exchanger Specification Sheet1Company:2Location:3Service of Unit: Our Reference:4Item No.: Your Reference:5Date: Rev No.: Job No.:6Size255/5100mmTypeBESHorConnected in1parallel1series7Surf/unit(eff.)m2Shells/unit1Surf/shell (eff.)m28PERFORMANCE OF ONE UNIT9Fluid allocationShell SideTube Side10Fluid name38组分3711Fluid quantity, Totalkg/s.3197.108612Vapor (In/Out)kg/s13Liquidkg/s00.0969014Noncondensablekg/s001516Temperature (In/Out)C3501508.332017Dew / Bubble pointC195.4518Density (Vap / Liq)kg/m31.74/7.57/776.453.6/19ViscositymPa*s.0223/.0114/.3184.021/20Molecular wt, Vap35.4535.7321Molecular wt, NC22Specific heatkJ/(kg*K)2.032/1.032/2.8381.793/23Thermal conductivityW/(m*K).0498/.0134/.157.0455/24Latent heatkJ/kg444.8335.225Pressure (abs)bar54.8795354.9871326Velocitym/s15.683.0827Pressure drop, allow./calc.bar.26.12047.5.0128728Fouling resistance (min)m2*K/W000Ao based29Heat exchanged126kWMTD corrected126.15C30Transfer rate, ServiceDirtyCleanW/(m2*K)31CONSTRUCTION OF ONE SHELLSketch32Shell SideTube Side33Design/vac/test pressure:gbar7/7/34Design temperatureC47044035Number passes per shell1136Corrosion allowancemm3.183.1837ConnectionsInmm1/ -/ -38Size/ratingOut/ -1/ -39Intermediate/ -/ -40Tube No.55OD19.05Tks-Avg2mmLength5100mmPitch25mm41Tube typePlainMaterialCarbon SteelTube pattern3042ShellCarbon SteelID254.51OD273.05mmShell cover-43Channel or bonnetCarbon SteelChannel coverCarbon Steel44Tubesheet-stationaryCarbon SteelTubesheet-floatingCarbon Steel45Floating head coverCarbon SteelImpingement protectionNone46Baffle-crossCarbon SteelTypeSingle segmentalCut(%d)41.49HSpacing: c/c170mm47Baffle-long-Seal typeInlet320.21mm48Supports-tubeU-bendType49Bypass sealTube-tubesheet jointExp.50Expansion joint-Type51RhoV2-Inlet nozzle1788Bundle entrance60Bundle exit56kg/(m*s2)52Gaskets - Shell sideUnknownTube SideUnknown53Floating headUnknown54Code requirementsASME Code Sec VIII Div 1TEMA classR - refinery service55Weight/Shell787.4Filled with water1037.4 Bundle289kg56Remarks5758Overall PerformanceDesign (Sizing)Shell SideTube SideTotal mass flow ratekg/s.3197.1086Vapor mass flow rate (In/Out)kg/s.3197.3197.0116.1086Liquid mass flow rate kg/s00.09690Vapor mass quallity 11.111TemperaturesC3501508.3320Dew point / Bubble pointC195.45Operating Pressuresbar54.8795354.98713Film coefficientW/(m2*K)320.978.1Fouling resistancem2*K/W00Velocity (highest)m/s15.683.08Pressure drop (allow./calc.)bar.26/.12047.5/.01287Total heat exchanged kW126UnitBES1pass1ser1parOverall clean coeff. (plain/finned)W/(m2*K)62.7/Shell size255-5100mmHorOverall dirty coeff. (plain/finned)W/(m2*K)62.7/TubesPlainEffective area (plain/finned)m216.1/No.55OD19.05Tks2mmEffective MTDC126.15Pattern30Pitch25mmActual/Required area ratio (dirty/clean)1.01/1.01BafflesSingle segmentalCut(%d)41.49Vibration problem (Tasc/TEMA)Possible/NoRhoV2 problemNoTotal cost10146Dollar(US)Resistance DistributionOverall Coefficient / Resistance SummaryCleanDirtyMax DirtyArea requiredm215.915.916.1Area ratio: actual/required1.011.011Overall coefficientW/(m2*K)62.762.762Overall resistancem2*K/W.01596.01596.01612Shell side foulingm2*K/W0.00.00008Tube side fouling 0.00.00008Resistance DistributionW/(m2*K)m2*K/W%Shell side film21725.5.0031219.5219.5219.33Shell side fouling00.5Tube wall21725.5.00005.29.29.29Tube side fouling *00.5Tube side film *78.1.012880.1980.1979.39* Based on outside surface - Area ratio: Ao/Ai =1.27Heat Transfer CoefficientsFilm coefficientsW/(m2*K)Shell SideTube SideBare area (OD) / Finned areaBare area (OD) / ID areaOverall film coefficients320.9/78.1/Vapor sensible320.9/54.1/Two phase0/103.2/Liquid sensible0/0/Heat Transfer ParametersInOutInOutPrandtl numbersVapor.91.95.88.83Liquid5.76Reynolds numbersVapor Nominal19219.0129586.491563.227948.36Liquid Nominal468.26MTD and FluxTemperature DifferenceCHeat Flux (based on tube O.D)kW/m2Overall effective MTD126.15Overall actual flux7.9One pass counterflow MTD126.15Critical flux29.9LMTD based on end points71.95Highest actual flux29.9Effective MTD correction factor1.75Highest actual/critical flux1Wall TemperaturesCShell mean metal temperature288.72Tube mean metal temperature263.79Tube wall temperatures (highest/lowest)345.55/72.2Duty DistributionHeat Load SummaryShell SideTube SidekW% totalkW% totalVapor only12610022.8182-Phase vapor0018.415Latent heat0045.4362-Phase liquid0039.431Liquid only0000Total126100126100Pressure DropPressure DropbarShell SideTube SideMaximum allowed.26.5Total calculated.12047.01287Gravitational00Frictional.12047.01254Momentum change0.00034Pressure drop distributionm/sbar%dpm/sbar%dpInlet nozzle32.06.011079.191.83.001199.47Entering bundle5.89.170.01Inside tubes.173.08.0013911.11Inlet space Xflow9.99.004673.88Baffle Xflow15.6810.86.0586148.65Baffle windows9.226.39.0336627.94Outlet space Xflow6.92.00292.41Exiting bundle4.753.08.000141.08Outlet nozzle30.2.009567.9434.17.0098278.32Intermediate nozzlesThermosiphon PipingPiping reference pointsmmPressure pointsbarCQualityHeight of liquid in columnLiquid level in columnHeight of heat transfer region inletInlet to heated sectionHeight of heat transfer region outletBoiling boundary positionHeight of column return lineOutlet of heated sectionExit of outlet pipingPressure changes (-loss/+gain)barInlet circuitExchangerOutlet circuitFrictionalGravitationalMomentumFlashingNozzlesTotalInlet Circuit PipingInlet circuit elementFrictional pressure drop at entrybarFrictional pressure drop at elementbarOutlet Circuit PipingOutlet circuit elementFrictional pressure drop at entrybarFrictional pressure drop at elementbarVoid fractionTwo phase flow patternFlow AnalysisShell Side Flow FractionsInletMiddleOutletDiameter ClearancemmCrossflow.52.49.52Window.86.71.86Baffle hole - tube OD.07.15.07.79Baffle OD - shell ID.07.14.073.18Shell ID - bundle OTL.34.22.3441Pass lanes000Rho*V2 AnalysisFlow areaVelocity DensityRho*V2TEMA limitmm2m/skg/m3kg/(m*s2)kg/(m*s2)Shell inlet nozzle573432.061.7417882232Shell entrance1173915.661.744275953Bundle entrance312605.891.7460Bundle exit270074.752.48565953Shell exit940013.692.484665953Shell outlet nozzle426130.22.482266mm2m/skg/m3Tube inlet nozzle9071.8365.382198928Tube inlet 9784.1765.382Tube outlet97843.083.634Tube outlet nozzle90734.173.54090Thermosiphons and KettlesThermosiphons Thermosiphon stabilityUnknown - beyond range of correlationsVertical tube side thermosiphonsFlow reversal criterion - top of the tubes (should be 0.5)Flooding criterion - top of the tubes (should be 1.0)Fraction of the tube length floodedKutateladze Number in axial nozzleKettlesRecircula