机械密封培训资料

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1、JohnCraneMechanicalSealTraining机械密封培训ProgrammeOverview目录简介°MechanicalSealOperatingPrinciples机械密封操作原理•HowaSealWorks密封是如何操作的•BasicComponentofMechanicalSeal构成机械密封的基本零部件°SealTypesClassifications机械密封的分类•SealTypes密封类型分类°SealArrangementsandSystems密封排列形式•Duals

2、ealarrangements,operatingprinciples,benefits&limitations双密封排列形式,操作原理,优点与局限°API682pipingplan(API682管道方案)•Differentiateflushing&quenching冲洗与吹扫的•CommonSinglesealpipingplan常用单密封管道方案•DualSealpipingsystemandcomponentsfunctionality双密封管道系统和部件的功能°Handlingofmech

3、anicalseal安装密封注意事项°Sealinstallationalignment安装密封的公差检查需求°Commissioningandventing开车与排气须知°Causesofsealfailureandsolutions密封失效的原因及解决方案°Monitorequipmentconditionsforgoodsealingsystemreliability检测设备运转情况.提高密封系统运行的可靠性Paragraph1Introductionaboutmechanicalseal机械

4、密封介绍SealArrangements密封排列方式Single单封ÊInsideMounted内装式ÊOutsideMounted外装式RotatingHead/RotatingSeat动环旋转/静环旋转Dual双封Pressurized带压双封ÊNon-Pressurized不带压双封SingleSealArrangements单封排列方式InsideorOutsideMounted?内装式或外装式?InsideMounted内装式OutsideMounted外装式SingleSealAdvan

5、tages单封优点：Lowestcost成本低Potentiallymostreliable可靠性较高Fewerparts零件数少Nosealantsystems没有封液系统1SingleSealArrangements单封排列方式InsideorOutsideMounted?内装式或外装式?InsideMounted内装式Advantages优点Bettercooling-Sealsurroundedby较好的冷却效果-密封全部处productflushing.于冲洗状态下Pressureacts

6、toclosethesealface.压力有利于密封面的贴合Partsincompression,whichispreferable零件处于压缩状态，这更有利totension.于压紧Canbeuseforhighpressureapplication可适用于高压工况Selfcleaning-centrifugeparticlesaway自冲洗-将颗粒与密封分离开fromseal.Lessspacerequiredoutsidehousing.腔体外需要较小的空间即可Sealleakageconta

7、inmentissimpler.对密封泄漏的处理比较简单Lowerleakageduetocentrifugalaction.在离心力作用下，泄漏量较小SingleSealArrangements单封排列方式InsideorOutsideMounted?内装式或外装式?OutsideMounted外装式Advantages优点Easiertoinstall.易于安装Easiertoinspect.易于观察Minimizescomponentsincontactwith使与介质流体接触的零件最少pum

8、pedfluid(corrosives,etc.)Centrifugalactioncansometimes离心作用有时可有润滑效果assistlubrication.SingleSealAdvantages单封优点：Lowestcost成本低Potentiallymostreliable可靠性较高Fewerparts零件数少Nosealantsystems没有封液系统2RotatingHeadorRotatingSeatArrangement?动环旋转或静环旋转?A