机械密封安装

SealingFundamentals机械密封基础Part2MechanicalSealInstallation机械密封安装密封系统的运行及其可靠性,主要受密封安装公差的影响。安装时应保证密封安装公差不超过所要求的极限。表面粗糙度及尺寸检查注1检查轴及密封腔的尺寸和如图所示的粗糙度。倒角1.5（与水平方向）x20°表面粗糙度参考左边表格0.8密封类型表面粗糙度动态O形圈0.3/0.6µmRa(研磨)静态O形圈0.8/1.2µmRa(车)橡胶波纹管0.8/1.2µmRa(车)PTFE波纹管0.8/1.2µmRa(车)动态及静态楔形环0.1/0.25µmRa(研磨)PumpInspections泵检测ShaftRunout轴跳Checkforbentshaft检查轴的弯曲Checkforoff-centermachinework检查机加工偏心LiftCheck上抬检查Checkforloosebearings检查轴承是否松动PumpInspections泵检测Sleeverunout轴套跳动Checkforpoorfit检测安装是否到位Checkforeggshapedsleeve检测轴套圆度NOTE:Ifsleeveheldbyimpeller,theimpellermustbeinplaceandtight注意:如果轴套由叶轮夹紧,叶轮必须安装到位并且紧固同轴度检查用手使轴旋转记录指示仪上的读数注5同轴度最大值不超过0.13mmFIM.轴跳的检查注2测量密封安装处的轴跳轴跳最大值不超过0.05mmFIM.用手使轴旋转记录指示仪上的读数PumpInspections泵检测Axialmovementofshaft轴的轴向运动Checkbearingsforexcessplay检查轴承窜动量Pushshaftbackandforth-donotuseexcessforce!!前后推动轴--不要用太大的力量轴窜量的检查注3轴窜量的最大值不超过0.08mmFIM。密封通过处的轴及轴套要去除毛刺和尖角。用手使轴沿轴向移动记录指示仪上的读数Facesofheadmustbeparallel泵盖表面必须平行PumpInspections泵检测Facerunoutcheck端面跳动检测Faceshouldbetruewithin0.002“端跳应0.002‘’Excessfacerunoutwillcausesealfacewobbleandreduceseallife.断面跳动过大将导致摩擦面摆动,缩短机械密封寿命.垂直度检查注4垂直度最大值在密封腔直径每10mm距离上不超过0.005mm*(*对波纹管密封不超过0.002mm)用手使轴旋转记录指示仪上的读数注1检查轴及密封腔的尺寸及表面粗糙度注2检查密封安装处的轴跳轴跳最大值不超过0.05mmFIM.用手使轴旋转记录指示仪上的读数用手使轴旋转记录指示仪上的读数注5同轴度最大值不超过0.13mmFIM.轴跳注4垂直度最大值在密封腔直径每10mm距离上不超过0.005mm用手使轴旋转记录指示仪上的读数垂直度注3轴窜最大值不超过0.08mmFIM.密封通过处的轴及轴套要去除毛刺和尖角用手使轴沿轴向移动记录指示仪上的读数轴窜同轴度0.8倒角1.5（与水平方向）x20°0.8表面粗糙度及尺寸如果测量尺寸超过所要求允差，在密封安装前设备必须进行调整来满足公差要求InstallationofaNon-cartridgeSeal非集装式机械密封的安装InstallationofaNon-cartridgeSeal非集装式机械密封的安装根据装配图来确定密封的安装位置和安装的尺寸公差Non-cartridgeSealInstallation非集装式机械密封的安装Non-cartridgeSealInstallation非集装式机械密封的安装Placesleeveonshaft把轴套装在轴上Non-cartridgeSealInstallation非集装式机械密封的安装Boltheadinplace安装泵盖并拧紧螺栓Non-cartridgeSealInstallation非集装式机械密封的安装Installandtightenimpeller安装并且紧固叶轮Setimpellertoheadclearance设置叶轮到泵盖之间的间隙Non-cartridgeSealInstallation非集装式机械密封的安装Scribesleeveatfaceofstuffingbox在轴套上标注密封腔端面位置Thisisthesealsettingreferenceline这是安装密封的参照线在轴或轴套上划刻痕线并标记“A”，使之与密封端盖的端面对齐非集装式密封的安装Non-cartridgeSealInstallation非集装式机械密封的安装Disassemblepumpagain泵的又一次分解Notescribemarkonsleeve注意轴套上的记号(INSTL.REF.)TON.O.COUNTER-CLOCKWISESHAFTROTATION(TYP.)6363.6251.6871.093.6871.750.9373.0004.000D.+.002-.000C'BORE3.750D.SEALO.D.3.875D.+.002-.000BORE1.875D.+.000-.002SHAFT2.874D.P.001SLEEVE2.062.5312.375D.+.000-.002SHAFT2.355D.+.000-.002SHAFT6.9535.968.2181.76514132138947651012112.031.125123456789101112131415161718192021222324252627282930313233343563STPORDOWCORNING#4GREASE..002HOU61DDATASHEETDATED4-11-94BYSAMELLEDGEJ.C.DWG.:CF-SP-10082PROJ:94-433H-SP-25421-2H-SP-25421-211XXMATINGRINGO-RINGCHEMLON316S.S.316S.S.316S.S.VITONOREQ.CARBON0672112520050000550A828750247500316S.S.316S.S.PRIMARYRINGO-RINGRETAINERSPRINGDISCSNAPRINGANTI-X-RINGSETSCREW111121113XXXXXA82875017725000002339549A928750180550A928750140550A928750430550GLANDASS'Y.O-RING316S.S./BRONZEVITONOREQ.SLEEVEH28754950550H2625438783100002439549VITONOREQ.TUNG.CARBIDED262528092050000237954911XA8-2875-039BINGHAMXCAD4X6X16H32733-110P4/4AA082XP151O151BSTFMBUTANE3560RPM137DF180PSIG371PSIG0.490ALS0411941.25:12.875D.8B1PHILLIPS66PHILLIPS66SWEENY,TXH.R.SERVICE:BUTANETRANSFERMWL316S.S.1GASKETD18765347510G.F.CHEMLON1XGLANDENDVIEWSCALE:.375:1Non-cartridgeSealInstallation非集装式机械密封的安装2.0621.750Non-cartridgeSealInstallation非集装式机械密封的安装Secondscribemarkonsleevebasedonsetreferencegivenonsealdrawing根据密封图纸上给出的工作长度在轴套做第二次记号安装参考值45mm根据装配图进行密封安装的位置的确定在轴或轴套上，在距离第一条刻痕线的要求位置划刻痕线并标记“B”“A”“B”非集装式密封的安装Setbackofretaineronsecondscribelinetightensetscrewsbutdonotovertighten.Overtighteningcandistortthesleeve.将传动套后部与第二条定位线对齐然后拧紧定位螺丝但不要过紧.过紧可以使轴套变形.Non-cartridgeSealInstallation非集装式机械密封的安装将密封头安装在轴或轴套上，使密封头对齐标记“B”的刻痕线将静环装入端盖中“B”非集装式密封的安装Non-cartridgeSealInstallation非集装式机械密封的安装Placeglandwithmatingringinstalledonshaft把装好静环的密封端盖安装在轴上Non-cartridgeSealInstallation非集装式机械密封的安装Placesleeveonshaft把轴套安装在轴上Becarefultoliftglandandmatingringoversleeve注意抬起装静环的端盖使其套在轴套上Installanykeysordrivescrews安装全部键和驱动螺钉Tightensetscrewsinretainerfully完全紧固传动套上的定位螺丝举起端盖，在轴上轻轻滑动轴套组合，小心地使之穿过端盖非集装式密封的安装Non-cartridgeSealInstallation非集装式机械密封的安装Placeheadonbearingbracket把密封头放在轴承支架上Becarefulnottobumptheseal注意不要碰到密封Boltinplacesecurely小心上紧螺丝Non-cartridgeSealInstallation非集装式机械密封的安装Placeimpelleronshaftwithnewgasket(ifappropriate).Tightenimpeller.换上新的垫圈(如果需要)把叶轮安装到轴上.紧固叶轮.安装叶轮并锁紧螺母非集装式密封的安装Non-cartridgeSealInstallation非集装式机械密封的安装Pullglandupoversealandboltinplace.推端盖至适当位置并拧紧螺栓Becarefultopullglandupsquarely.拧紧螺栓时要对称用力CheckwithfeelersateachboltunlessmetaltometalfitisindicatedonDWG.检查螺拴的紧固性安装密封腔拧紧端盖螺母非集装式密封的安装Non-cartridgeSealInstallation非集装式机械密封的安装Installpumpintocasing.Boltinplace.把泵安装在泵套里.固定在合适的位置.Becarefultopullupcasesquarely.拧紧螺栓时要对称用力CheckwithfeelersateachboltunlessmetaltometalfitisindicatedonDWG.检查螺拴的紧固性相关的注意事项在安装前，不要拆开密封不要接触或碰撞密封面将密封面向上放置密封放在柔软的棉质纸上密封面不要朝下或侧置安装密封时应使手保持干净在把动静环放置在一起前，要小心地用棉质纸和溶剂来擦洗密封面密封面上不要使用润滑油调试确保密封与工况相符小心处理密封零件确保泵工况的正确性确保密封正确安装确保泵符合公差要求（热或冷？）旋转泵轴360o确保泵旋向正确确保泵已完全具备开车条件确保密封腔的排气确保泵在操作温度下工作确保冲洗口和急冷口管路连接正确