储罐内加热盘管的设计与计算-何文静

CHEMICALENGINEEＲINGDESIGN化工设计2013，23(3)*710065。。。。。11.1、、、、、。。。1.21。2。。。3DN25～65。0.3～0.8m/s3～10kg/m2·s。42～3dodoh1.5～2.0do100～200mm。5mn。。V0vmm=4V0/πd2iv1LtLt=a/πdo2LL=Lt/m3ll=пDc2+槡h≈πDc4nn=L/l5LcLc=nh601*。2002。。[e-mail]。2013，23(3)何文静储罐内加热盘管的设计与计算22.1、=K0A0△t07K0=11α0+1α1+δλ08tw0t△t0=tw0－ta=t－ta92.2=qA010q=t－taδλ0+1α01133.13.1.11hidik=Pr26.2Pr2/3－0.074Ｒe0．8·diD()c0．11+0.098Ｒedi/Dc[]21/{}512Pr≈1Ｒedi/Dc2＞0.1。2hidik=Pr0.441.0Ｒe5/6diD()c1/12·1+0．061Ｒedi/Dc[]{}2.51/613Pr＞1Ｒedi/Dc2.5＞0.4。3.1.2hi=388ki/diDc/di－0.54Γ/3.6μ[]f0．15143.2。Pr≥0.7Nu=CoGrPrn=hodeλ115Pr=Cμλ116Gr=do3ρ2gβΔtμ217β=ρ－ρwρwΔt=ρ－ρwρwtw－t18twtw=T－k1hi+γiΔt=t+k1ho+γoΔt19ho。K61K=1ho+γo+γidod()i+1hidod()i+tsγdod()i20dm=do－diIndodi21=KAΔt22A。4、Φ9000×16500mmV=1000m3ta13.1℃t50℃0.4MPaG。4.150℃ta13.1℃δ0.07mSHJ10－90α11.6W/m2·℃λ00.046+0.00018tmtm=12t+taλo=0.052W/m2·℃。11CHEMICALENGINEEＲINGDESIGN化工设计2013，23(3)1011q=50－13.10.070.052+111.6=25.8W/m2Q=qA0=25.8×3.14×9×16.5+2×3.14×4.52=15311W=13187kcal/hr0.4MPaG504kcal/kgw=13187504=26.2kg/hr。4.2DN400.4MPaGρi2.67kg/m3v=26.20.785×3600×0.042×2.67=2.2m/sDN40。4.34.3.1hi0.4MPaGki0.025kcal/m·h·℃DN40di0.0383mDc6mΓw/π·di=217.9kg/m·h0.4MPaGμf0.014cP。14hi=388×0.025÷0.0383×6/0.0383－0.54×217.9÷3.6×0.0140.15=58.0kcal/m2·h·℃4.3.2ho1Pr0.44kcal/kg·℃μ1.584kg/m·h0.44×10－3Pa·sλ10.12kcal/m·h·℃。14Pr=0.44×1.5840.12=5.812KDN40do0.0483mde0.04mρ847kg/m3Co0.47n1/4。。tw=72℃ρw823.7kg/m318β=0.847－0.82370.8237×72－50=0.00128617Gr=0.04833×8472×9.81×0.001286×72－500.44×10－32=115.9×10615Nu=0.47×115.9×5.81×10614=75.7ho=75.7×0.120.04=227.1kcal/m2·h·℃ho=227.1kcal/m2·h·℃tw=72℃19T152℃γi0.0001m2·h·℃/kcalγ00.0003m2·h·℃/kcal。k=72－501222.1+0.0003×102=45.9kcal/m2·h·℃tw=152－45.9×158.0+0.0001×102=71℃tw=72℃＜3℃tw=72℃ho=227.1kcal/m2·h·℃。2021ts0.005m、λ50kcal/m·h·℃dm=do－diIndodi=48.3－38.3In48.338.3=41.1mmtsλ=0.00550=0.0001m2·h·℃/kcal1K=1227.1+0.0003+0.0001×48.338.3+158.0×48.338.3+0.0001×48.343.1=0.02668m2·h·℃/kcalK=37.5kcal/m2·h·℃322A=QKΔt=1318737.5×152－50=3.4m2212013，23(3)何文静储罐内加热盘管的设计与计算4DN406mA'=nπDc·πde=2×3.14×6×3.14×0.04=4.7m2Lt=nπDc=2×3.14×6=37.7m。5。dimAm2DcmWQW/m2K0W/m2·℃A0m2Δt0℃tw0℃T℃ta℃αW/m2·℃11.6W/m2·℃α0W/m2·℃α1W/m2·℃α1=11.62～13.95W/m2·℃δmλ0W/m2·℃hikcal/m2·h·℃kikcal/m·h·℃PrＲeΓkg/m·hΓ=w/π·diwkg/hμfCpNuGrC0nDN25～DN125C00.47n1/44hokcal/m2·h·℃demλ1kcal/m·h·℃λkcal/m·h·℃Ckcal/kg·℃μkg/m·hρkg/m3g9.81m/s2ρwkg/m3tw℃ΔT℃kkcal/m·h·℃T℃tsmγiγoKkcal/m2·h·℃1HG/T20570.11－95、S.2SHJ10－90S.3M.4J.5M．．6M．．2013－05－08檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿??··312013，23(3)ABSTＲACTSOFCHEMICALENGINEEＲINGDESIGNABSTＲACTSProcessDesignofStyreneStorageTankLiDaweietalJilinDesignInstituteofPetroChinaNortheastＲefining＆ChemicalsEngineeringCo．Ltd．Jilin132002Inthispaperfromstyrenematerialpropertiesandsafetypointofviewtheprocessdesignfeaturesandsafetymeasurestobetakenforthestyrenestoragetankaredescribed．KeywordsstyrenestoragetankselectionprocessflowPipingDesignforCatalystLineofCatalyticＲeformingUnitChenYingnanSinopecLuoyangPetrochemicalEngineeringCorporation/SINOPECLuoyang471003Combinedwitha1．0×106t/acatalyticreformingunitthispaperdiscussesthepipingdesignforreformingcatalystlineregardinghowtopreventreformingcatalystattritionfromlayoutpiperoutingmaterialselectionconstructionrequirementsandotheraspects．KeywordscatalyticreformingcatalystpipingpipingdesignDesignandCalculationofHeatingCoilinsideStorageTankHeWenjingHualuEngineering＆TechnologyCo．Ltd．Xi’an710065Thispaperdescribestheheattransferandpressuredropcalculationsoftheheatingcoilinsidethestoragetankandhowtodeterminetheheatingareaofthecoilandalsopresentstheexamplesinpracticalengineeringapplications．KeywordsinternalheatingcoilstoragetankFire－fightingSystemDesignofaLargeOil－GasTankFarmLiuWeiDalianDahuaEngineeringCo．Ltd．Dalian116031Thispaperpresentsthefire－fightingsystemdesignforalargeClassA＆BoilandliquefiedpetroleumgastankfarmcombinedwiththerequirementsofInterimProvisionsofFireSafetyManagementforPetrochemicalEnterprisesofLiaoningProvinceandOil－GasStorage＆SupplyPlaceandelaboratestheparametersdeterminationcalculationandequipmentselectioninthedesignprocess．KeywordsclassA＆BoilsliquefiedpetroleumgasLPGfire－fightingsystemdesignDiscussiononFullＲefrigeratedEthyleneStorageandLayoutTaoQingSINOPECNingboEngineeringCo．Ltd．Ningbo315103Thispaperbrieflydescribesthefullrefrigeratedethylenestoragemethodtypeofthestoragetankandtheproblemsneedingattentioninthelayoutfireseparationdistanceenclosureweirsettingsandsoon．KeywordscryogenicethylenefullrefrigerationstoragelayoutDiscussiononProcessDesignofNitrogenMakingbyAirCompressionofLNGTerminalandLiquefactionStationGuoLeietalCNOOCShandongChemicalEngineeringCo．Ltd．Jinan250101AccordingtothespecialrequirementsofLNGterminalandliquefactionstationonitsaircompressionnitrogenmakingsystemthispaperproposestheappropriatemajorequipmentselectionandtheapplicableprocessflowoftheaircompressionnitrogenmakingsystem．KeywordsLNGterminalLNGliquefactionstationaircompressionnitrogenmakingprocessdesignBriefIntroductiontoπ－BendOptimumDesignbyCAESAＲIISoftwareWangJinbaoJilinDesignInstituteofPetroChinaNortheastＲefining