News 

制冷焊接保压试漏工艺操作指南

2020-04-09

Linuo Machinery participated in the 2012 PTC ASIA

2019-01-17

ThesalesteamofHangzhouLinuoMachineryEquipmentCo.,Ltd.participatedinthe17thPTCASIA2012heldinShanghaifrom10.29to11.1in2012andsuccessfullycompletedthecompany'sexpecteddisplaygoals.PTCASIAistheAsiaInternationalPowerTransmissionandControlTechnologyExhibitionorganizedbyHannoverMesse(Shanghai)Co.,Ltd.,whichmaintainsastrongpopularitywithitsindustryexpertiseandinformationtimeliness,bothexhibitorsandvisitors.Theinformationyouneed.HangzhouLinuoMachineryEquipmentCo.,Ltd.exhibitedseveralsimple,low-energyandhigh-efficiencynewdryersthatattractedmanyvisitorsandinterestedcustomers,whichcausedagoodresponseintheindustryandopenedthemarketforthecompany'snewproducts.Agoodopportunity.

What factors affect the efficiency of the refrigerated air dryer?

2019-01-17

MicroheatregenerationdryersterilizingfilterfilterThewholeprocessoffreeze-dryingisactuallythesimultaneousprocessofheattransferandmasstransfer(steam).Theheatandmasstransferrateaffectthedryingrate,whichaffectstheentirefreeze-dryingcycle.Allthefactorsaffectingheatandmasstransferwillaffect.Dryingrate.Themainfactorsthataffectheatandmasstransferare:1.FormandcompositionofmaterialsAccordingtotheformofthelyophilizedmaterial,itisusuallyclassifiedintoasolidandaliquid.Themorphologyofthesolidsandtheconcentrationoftheliquidhaveagreatereffectonthefreeze-dryingrate.2,pre-freezingrateThesizeofthecrystalformeduponfreezinggreatlyaffectstherateofdryingandtherateofdissolutionoftheproductafterdrying.Thequickfreezingandslowfreezingprocesseshavethefollowingdifferences:icecrystalsproducedbyquickfreezingaresmaller,andicecrystalsproducedbyslowfreezingarelarger.Largeicecrystalsaregoodforsublimation,smallicecrystalsarenotconducivetosublimation,rapidfreezingleadstolowsublimationrate,anddesorptionrateisfast;slowfreezingresultsinfastsublimationrateandslowresolutionrate.3,theamountWhenthematerialislyophilized,thereisacertainratioofsurfaceareatomaterialthicknessafterbeingdispensedintothecontainer,thatis,lyophilizationisrelatedtotheamountoftheproduct.Thesurfaceareaandthicknessaresmall,whichisbeneficialtothesublimationofwater,easytofreezeandgoodquality.Whendrying,thewetweightloadingperunitareaof​​thetrayisanimportantfactorindeterminingthedryingtime.Undernormalcircumstances,thethinnerthematerialisdeposited,thefastertheheattransferandmasstransferrate,andtheshorterthedryingtime.However,ifthethicknessofthematerialisthin,theamountofmaterialdriedperbatchperunitoffreeze-dryingareaissmall,whichisunfavorableforincreasingtheunitfreeze-dryingareaandunittimeproduction.4,dryingroompressureThepressureinthedryingchamberaffectstherateofheattransferandmasstransfer.Intermsofmasstransfer,thelowerthepressure,thebetter,andforheattransfer,thehigherthepressure,thebetter.Themasstransferrateismainlydeterminedbythetemperatureandpressureofthesublimationinterfaceandthesurfaceofthedrylayer.Itisnecessarytoincreasetheescaperateofwatervaporinthedrylayer.First,increasethetemperatureofthesublimationinterfaceandincreasethewatervaporpressureattheinterface;Itistoincreasethevacuumofthedryingchamberandreducethevaporpressureonthesurfaceofthedryinglayer.5,heattransfermodeheattransfermodeAccordingtothetraditionalclassification,itcanbedividedinto:conduction,convection,heatradiationandmediumheating(microwaveheating).Sincethesublimationdryingprocessinvolvesthetransferofheatandmass(watervapor),theheattransfermethodismoreeffectiveintransferringtheheattothematerial,whichhasagreaterinfluenceonthedryingrate.

Refrigerated air dryer energy saving development

2019-01-17

IntermsoftraditionalChinesemedicine,freeze-dryingequipmentisstilllimitedtolyophilizationofasmallamountofChinesemedicinalmaterialssuchasginseng,velvet,yam,andCordycepssinensis.AlargenumberofproprietaryChinesemedicineshavenotbeenfreeze-dried,whichisfarfromtheforeigncountries.Withthedevelopmentofthetimes,peoplepaymoreattentiontoenergyconservationandenvironmentalprotection,andtherequirementsofdomesticfoodfreezedryersarerelativelyhigh.Fooddryingcharacteristics:1.Betterpreservethetasteandaromaoffood2,completelysavethecolorandstartofthefood3.Completelypreservethevitaminsandproteinsoffood4,canquicklyandcompletelyre-absorb5.Theperiodofconfinedfoodpreservationislong,andthestorageperiodisatleastoneortwoyears.Inthefaceofvariouschallenges,onlytheinnovationanddevelopment,betterimprovement,thefreezedryerindustrycanbebetterdeveloped.1.Reducecostsandreduceenergyconsumption:Someforeignfreezedryersarenotmadeofstainlesssteel,butlow-carbonsteelcoatedfoodcanbedriedwithresin,whichemitsinfraredlightatroomtemperature.Thesurfaceoftheshelfiscoatedwithhigh-performancefar-infraredemittingmaterialstoenhanceitsradiationability;thesurfaceofthetrayistreatedtoenhanceitsabsorptioncapacity.Theoptimizationofthestructure,sizeandfrostingcharacteristicsofthewatertrapismorepractical,becauseitscurrentcostisequivalenttothecostofthefreeze-dryingbox,andtherunningpowerconsumptionislarge.Forthelyophilizer,theheatingsystemonlysupplementsthesublimationheat,andthepowerconsumptionshouldnotbetoohigh,buttheexistingequipmentisnotsatisfactory,andthestructureshouldbeoptimizedandtheenergyconsumptionshouldbereduced.2.Developmentofcontinuousfreeze-dryingequipment:Mostofthecurrentlyproducedfreeze-dryingmachinesarebatchproducts.Withthedevelopmentofindustrialtechnology,itisaninevitabletrendtodevelopcontinuousfreeze-dryingequipmentandincreasetheoutputoffreeze-driedproducts.3,toensurethequalityofthefreezedryer:improveperformancereferstotheadditionofheatingrate,pumpingrate,temperatureuniformity,vacuumstability,enhancethenewfunctionoftheequipment.Withtheincreasingdemandforfreeze-dryingequipmentandthecontinuousimprovementofthequalityrequirementsofpharmaceuticalproducts,thefreezedryerequipmentwillhaveagreatdevelopment.Thefreeze-dryingequipmentshouldbedevelopedtowardstheindustry'senergy-savingandcost-reducingtrend.Microheatregenerationdryer