进口磁力泵/Magneticpump/德国巴赫进口磁力泵（BACH）产品介绍：泵以静密封取代动密封，使泵的过流部件完全处于密封状态，***了其他泵机械密封无法避免的跑、冒、滴、漏之弊病。泵体及过流部件的材料采用了耐腐蚀的不锈钢、刚玉陶瓷四氟石墨等材料制造。Thestaticsealreplacesthedynamicseal,sothattheflowpassagepartsofthepumparecompletelysealed,whichcompletelysolvestheun***oidabledefectsofrunning,falling,drippingandleakingofotherpumpmechanicalseals.Thematerialsofpumpbodyandflowpassagepartsaremadeofcorrosionresistantstainlesssteel,corundumceramics,tetrafluorographiteandothermaterials.进口磁力泵（BACH）工作条件：1、永磁体：由稀土永磁材料制成的永磁体工作温度范围广（-45℃--400℃），顽力高，磁场方向具有很好的各向异性，在同极相接近时也不会发生退磁现象。2、隔离套：在采用金属隔离套时，隔离套会处于一个正弦交变的磁场中，在垂直于磁力线方向的截面上感应出涡电流并转化成热量，油泵设计好后，泵的额定转速和磁传动力矩由工况给定，要降低涡流只能从隔套内的压力和隔套内径等方面考虑，选用高电阻率、高强度的非金属材料制作隔离套，在降低涡流方面效果十分明显。3、滑动轴承：滑动轴承的材质有浸渍石墨、工程陶瓷、填充聚四氟乙烯等，由于工程陶瓷具有耐热、耐腐蚀、耐摩擦的优点，因此磁力泵的滑动轴承多采用工程陶瓷制作。但是工程陶瓷性质很脆且膨胀系数小，所以轴承间隙不得过小，以免发生抱轴事故。由于磁力泵的滑动轴承是以所输送的介质进行润滑，所以应根据不同的介质及使用工况，选用不同材质的轴承。4、冷却润滑液流量的控制：泵运转时必须用少量的冷却液对内磁转子与隔离套之间的环隙区域以及滑动轴承的摩擦进行冲洗冷却，冷却液的流量通常为油泵设计流量的2%--3%。内磁转子与隔离套之间的环隙区域由于涡流而产生高热量，当冷却液量少或冲洗孔不畅、堵塞时，将导致介质温度高于永磁体的工作温度，使内磁转子逐步失去磁性，磁力传动器失效。当介质为水或水基液时，可使环隙区域的温度维持在3℃--5℃；当介质为烃或油时，可使环隙区域的温度维持在5℃--8℃。5、保护措施：当磁力传动器的从动部件在过载的情况下运行或转子卡死时，磁力传动器的主、从动部件会自动脱落，从而保护油泵。此时磁力传动器上的永磁体在主动转子交变磁场的作用下，将产生涡损、磁损，造成永磁体温度升高，磁力传动器滑脱失效。1.Permanentmagnets:Permanentmagnetsmadeofrareearthpermanentmagnetsworkinawiderangeoftemperatures(-45-400degreesCelsius).Hightenacity,goodanisotropyinthedirectionofmagneticfield,andnodemagnetizationoccurswhenthesamepoleisclosetoeachother.2.Isolationsleeve:Whenusingmetalisolationsleeve,theisolationsleevewillbeinasinusoidalalternatingmagneticfield,inthevertical.Theeddycurrentisinducedonthecrosssectionofthemagneticlinedirectionandconvertedintoheat.Aftertheoilpumpisdesigned,theratedspeedandmagneticdrivingmomentofthepumparegivenbytheworkingcondition.Toreducetheeddycurrent,wecanonlyc***iderthepressureintheseparatorandtheinnerdiameteroftheseparator.Highresistivityandhighstrengthnon-metallicmaterialsareselectedtomaketheisolatortoreducetheeddycurrent.Floweffectisvery***ious.3.Slidingbearing:Thematerialofslidingbearingincludesimpregnatedgraphite,engineeringceramics,filledPTFE,etc.Engineeringceramicsh***etheadvantagesofheatresistance,corrosionresistanceandfrictionresistance,sotheslidingbearingsofmagneticpumparemostlymadeofEngineeringceramics.Buttheengineeringceramicsarebrittleandh***e***allexpansioncoefficient,sothebearingclearanceshouldnotbetoo***all,inorderto***oidshaftholdingaccident.Becausetheslidingbearingofthemagneticpumpislubricatedbythemediumitconveys,bearingsofdifferentmaterialsshouldbeselectedaccordingtodifferentmediaandworkingconditi***.4.Controloftheflowrateofcoolinglubricant:Whenthepumpisrunning,a***allamountofcoolingfluidmustbeusedtoflushandcooltheannulusareabetweentheinternalmagneticrotorandisolationsleeveandthefrictionofslidingbearing.Theflowrateofcoolingfluidisusually2%-3%ofthedesignedflowrateoftheoilpump.Theannulargapareabetweentheinternalmagneticrotorandisolationsleevehashighheatduetoeddycurrent.Whenthecoolingfluidis***allortheflushingholeisnot***oothandblocked,themediumtemperaturewillbehigherthantheworkingtemperatureofthepermanentmagnet,whichwillgraduallymaketheinternalmagneticrotorloseitsmagneti***andthemagneticdrivewillfail.Whenthemediumiswaterorwater-basedliquid,theannulartemperaturecanbemaintainedat3-5C,andwhenthemediumishydrocarbonoroil,theannulartemperaturecanbemaintainedat5-8C.5.Protectionmeasures:Whenthedrivenpartsofthemagneticdrivearerunningunderoverloadortherotorisstuck,themainanddrivenpartsofthemagneticdrivewillfalloffautomatically,thusprotectingtheoilpump.Undertheactionofalternatingmagneticfieldoftheactiverotor,thepermanentmagnetonthemagneticdrivewillproduceeddylossandmagneticloss,whichwillcausethetemperatureofthepermanentmagnettoriseandtheslidingfailureofthemagneticdrive.用途：磁力泵结构紧凑、外形美观、体积小、噪音低、运行可靠、使用维修方便。可广泛应用于化工、制药、石油、电镀、食品、电影照相洗印、科研机构。国防工业等单位抽送酸、碱液、油类，稀有贵重液、镀液、挥发性液体，以及循环水配套。特别是***、***、挥发性液体的抽送，选用此泵则更为理想。)