果蔬渗透脱水设备设计-XXXX王三郎

I果蔬渗透脱水设备设计摘要渗透脱水的脱水具有能耗低，营养成分损失少的特点。由于它可以在较短的时间内除去水果、蔬菜里的水分而不损坏其组织，使它们仍能保持原有风味、色泽、营养和品质，而且感观与新鲜时几乎一样，因此是一种颇受看好的加工技术。生产中渗透脱水设备要解决几个主要方面的问题：连续循环大量的高粘度渗透液，样品原料飘浮现象（样品原料比重小于渗透液的比重）。工业生产中需要考虑的几个问题：使样品原料浸泡在渗透液中，对样品原料的操作要轻柔；原料样品与渗透液的比值要尽可能的小。本次设计的设备主要结构有振荡槽，原料筐，循环泵，振荡马达，空气压缩机等。机械振荡式渗透脱水设备结构简单，渗透溶液设计有回流管道，能够有效调节渗透溶液浓度，同时设置气压缸的上下运动，振荡马达的左右方向的机械振动，加上原料框下方压缩空气管的扰流，和循环泵的喷淋可以强化渗透脱水过程的进行，进而最大限度的提升传质效率。关键词：果蔬，渗透脱水，振荡设备IIDesignofDewateringEquipmentforFruitsandVegetablesABSTRACTDewateringtechnologyhaslowenergyconsumption,lowlosscharacteristicsofnutrientsBecauseitcanberemovedinashortperiodoftimefruitsandvegetablesinwaterwithoutdamagetotheirorganization,sothattheycanmaintaintheoriginalflavor,color,nutritionandquality,andsensoryandalmostthesameaswhenfresh,itisapopularpromisingprocessingtechnology.Productionofdewateringequipmenttoaddressseveralmajorissues:acontinuouscycleofinfiltrationofalargenumberofhigh-viscosityliquid,thesamplematerialfloatinginthephenomenon(theproportionofsamplesofrawmaterialsislessthantheproportionofliquidpenetration)Industrialproductionneedstoconsiderseveralissues:thesamplesimmersedinosmoticsolutionofrawmaterials,theoperationofthesamplematerialtobegentle;rawsampleandtheratioofpermeatetobeassmallaspossible.Themainstructuresofthedeviceareoscillationtrough,rawmaterialbasket,Circulationpump,vibrationmotors,andaircompressors.Mechanicalvibration-typedewateringdeviceofsimplestructure,thedesignofosmoticsolutionreturnpipe,caneffectivelyregulateosmoticconcentration,andsettheairpressurecylindermovingupanddown,leftandrightmotordirectionofoscillationofmechanicalvibrations,coupledwiththecompressedairpipematerialinterferenceboxbelowflow,andcirculationpumpspraycanstrengthentheprocessofosmoticdehydrationcarriedout,andthenmaximizetheefficiencyofmasstransferenhancementKEYWORDS:fruitsandvegetables，osmoticdehydration，oscillationdeviceIII目录摘要....................................................................IABSTRACT................................................................II1绪论...................................................................11.1课题目的及意义...................................................11.2渗透脱水的基本原理...............................................21.2.1渗透脱水的几种相似定义.....................................31.2.2渗透脱水技术不同于常规干燥的特点...........................31.2.3原料和浸渍液的选择.........................................32果蔬渗透脱水开发国内外研究现状和前景...................................52.1果蔬渗透脱水的现状................................................52.1.1渗透溶液的选择..............................................52.1.2渗透溶液的浓度.............................................62.1.3温度选择...................................................62.1.4渗透脱水的时间.............................................62.1.5水果样品和渗透液的比例.....................................72.1.6渗透脱水过程中搅拌的选择...................................72.1.7压力的影响.................................................72.2渗透脱水的应用前景................................................73设备设计的总体构思和基础设备的设计.....................................93.1工业上常见的问题.................................................93.2具体的问题及详细的指标...........................................93.3设备设计的的构思................................................103.3.1渗透方式的选择............................................103.3.2关于渗透效率的问题........................................103.3.3有关浮料的问题............................................113.3.4关于渗透液的循环使用......................................113.4渗透脱水设备方案图..............................................113.4.1设备结构特征..............................................123.4.2实际运行情形：............................................133.4.3具体操作方法..............................................133.4.4设备的优点................................................133.5基础设备的设计..................................................13IV3.5.1原料筐的设计..............................................133.5.2振荡槽的设计..............................................144主要设备的设计........................................................154.1振荡马达的设计..................................................154.1.1电机结构和运行原理........................................164.1.2电机参数计算及设计........................................174.1.3电机样机参数..............................................184.1.4振荡电机的电压，振荡频率，额定转速，额定功率的选择........184.2离心泵的选型设计................................................184.3关于气缸的选型..................................................194.4空气压缩机的选型................................................194.5框状空气管的设计................................................204.5.1框状空气管的直径（内径）确定..............................204.5.2空气管接头的选用..........................................205辅助设备的设计.........................................................215.1空气过滤器的选型.................................................225.2溶液输出和回流管道的设计.........................................235.2.1溶液输出和回流管道的作用..................................245.2.2溶液输出和回流管道的直径确定..............................245.2.3溶液输出和回流管道的管件选用..............................245.3消毒机..........................................................256结论与建议.......................