鍋爐各轉動機械軸承冷卻水系統

鍋爐各轉動機械軸承冷卻水系統BoilerrotarymechanicalbearingCoolingwatersystem1.2一次風機的調試與運行1.2Commissioningandoperationofprimaryairfan1.2.1 一次風機調試前的準備工作1.2.1Preparationbeforecommissioningofprimaryairfan1)詳細檢查所有螺栓是否緊固。1）Detailedlyinspectwhetherallboltsaretightenedornot.2)檢查葉輪、進口導葉調節(jié)門與電動機的旋轉方向是否正確。2)Inspectwhethertherotationdirectionsofimpeller,adjustablevalveofinletimpellerandmotorarecorrectornot.3)檢查機殼、進氣箱和進出口管道是否遺留下雜物。

3)Inspectwhetherforeignmattersareleftattheshell,airintakeboxandinlet/outletpipeornot.4)檢查儀表連接是否正確。4)Inspectwhethertheconnectionofinstrumentiscorrectornot.5) 在調節(jié)門處于關閉位置的情況下，檢查調節(jié)桿的位置是否正確，調節(jié)門的相鄰葉片必須接觸，如果檢查下來相鄰葉片不互相接觸，必須加以調整和固定。5)Undertheconditionthattheadjustablevalveisclosed,inspectwhetherthepositionofadjustablerodiscorrectornot.Theadjacentbladesofadjustablevalvemustcontacteachother.Iftheadjacentbladesdonotcontacteachotherafterinspection,theymustbeadjustedandfixed.6)調節(jié)門的設計方向與葉輪的旋轉方向相同，即在調節(jié)門關閉的情況下，介質的預流動方向與葉輪的旋轉方向相同。6)Thedesigndirectionofadjustablevalveisthesameasrotarydirectionofimpeller,thatistosay,undertheconditionthattheadjustablevalveisclosed,thepreflowingdirectionofmediumisthesameasrotationdirectionofimpeller.7)必須對傳動機構聯桿長度進行調節(jié)，保證電動執(zhí)行機構的行程要滿足調節(jié)門全開和全閉的需要。7)Itmustadjustthelengthoflinkrodofactuatortoensurethestrokingofelectricmotoractuatorshouldtallywiththedemandsoffullopeningorfullclosingofadjustablevalve.8)在風機啟動之前，調節(jié)門必須關閉。8)Theadjustablevalvemustbeclosedbeforethefanisstartedup.1.2.2一次風機導葉調節(jié)門傳動機構的調試1.2.2Commissioningofdrivingmechanismofguidevaneadjustablevalveofprimaryairfan1)在調節(jié)門處于關閉位置的情況下，檢查調節(jié)桿的位置是否正確，規(guī)定調節(jié)門的相鄰葉片必須接觸，如果檢查下來相鄰葉片不互相接觸，必須加以調整和固定。1)Undertheconditionthattheadjustablevalveisclosed,inspectwhetherthepositionofadjustablerodiscorrectornot.Prescribethattheadjacentbladesofadjustablevalvemustcontacteachother.Iftheadjacentbladesdonotcontacteachotherafterinspection,theymustbeadjustedandfixed.2)調節(jié)門的設計方向與葉輪的旋轉方向相同，即在調節(jié)門關閉的情況下，介質的預流動方向與葉輪的旋轉方向相同。2)Thedesigndirectionofadjustablevalveisthesameasrotarydirectionofimpeller,thatistosay,undertheconditionthattheadjustablevalveisclosed,thepreflowingdirectionofmediumisthesameastherotationdirectionofimpeller.3)必須對傳動機構聯桿長度進行調節(jié)，保證電動執(zhí)行機構的行程要滿足調節(jié)門全開和全閉的需要。3)Itmustadjustthelengthoflinkrodofactuatortoensurethestrokingofelectricmotoractuatorshouldtallywiththedemandsoffullopeningandfullclosingofadjustablevalve.4)在風機啟動之前，調節(jié)門必須關閉。4)Theadjustablevalvemustbeclosedbeforestartupthefan.1.2.3 一次風機的聯動試車1.2.3Interlockcommissioningofprimaryairfan1)風機應在無載荷的情況下啟動，即關閉風機的進口調節(jié)門，并將風機出口管道中的閥門開啟，以防止電機過載。風機在調節(jié)門關閉的情況下，運行時間不得過長。如情況良好，在風機達到額定轉速后，再將調節(jié)門逐漸開啟，以達到風機的設計額定工況點。1)Thefanshouldbestartedundertheconditionofnoload,thatistosay,closetheinletadjustablevalveoffanandopenthevalveinoutletpipeoffaninordertopreventoverloadofmotor.Undertheconditionthattheadjustablevalveoffanisclosed,theoperationtimecannotbetoolong.Iftheconditionisgood,graduallyopentheadjustablevalveafterthefanreachesratedrotationspeedsoastoattaindesignratedworkingconditionpointoffan.2)在風機運行過程中，注意監(jiān)控軸承的溫度。軸承的溫度在達到穩(wěn)定之前的最初幾個小時之內，溫度值會直線上升，但隨后會穩(wěn)定在一個溫度值。運行過程中，軸承溫升不得超過40℃。注意監(jiān)控軸承部的均方根振速測定值，其值不得超過4.0mm/s。2)Duringtheoperatingprocessoffan,payattentiontomonitoringthebearingtemperature.Withintheinitialseveralhoursbeforethetemperatureattainsstablelevel,thetemperaturevaluewillrisefastasastraightline,butlateritwillstayatonevalue.Duringoperation,bearingtemperatureshouldnotexceed80℃.Payattentiontomonitoringtheroot-mean-squarevibrationspeeddeterminedvalueofbearinganditsvalueshouldnotexceed4.0mm/s.3)風機的聯動試車時間不得低于72小時。3)Thetimeofinterlockcommissioningoffanshouldnotbelessthan72hours.4)一次風機啟動前應關閉出口擋板，空載啟動。4)Theoutletdampershouldbeclosedbeforestartuptheprimaryairfan,anditisstartedwithno-load.5）投入一次風機動力電源，軟啟動。

5)Putindynamicpowersupplyofprimaryairfan,softstart-up.6）開啟一次風機出口擋板。

6)Opentheoutletdamperofprimaryairfan.7）正常停爐時可反相操作。

7)Duringnormalshutdown,itcanbeoperatedinainverseorder.1.2.4 立即停車事件1.2.4Emergencyshutdown1)風機或電動機啟動時有明顯的異?，F象或摩擦聲響。

1)Themotororfanhasobviousandabnormalconditionsorgratingduringthestart-up.2)風機軸承溫度、軸承的振動超過規(guī)定值。2)Thebearingtemperatureandvibrationoffanexceedspecifiedvalue.3)調節(jié)門的調節(jié)失靈。3)Theadjustmentofadjustablevalvehasfault.4)電動機突然過載。4)Motoroverloadssuddenly.5)涉及人身和機組安全的其它意外情況。5)Othersuddennessrelatedtopersonnelsafetyandunitsafety1.3一次風機的主要故障及原因1.3Mainfaultsofprimaryairfanandcauses在風機運轉過程中，可能發(fā)生某些故障，對發(fā)生的故障必須迅速查明原因，及時解決，以防止事故的發(fā)生。

Intherunningprocessoffan,somefaultsmaytakeplace,andthecausesmustbefoundoutquicklyandthefaultsmustbesolvedintimeinordertopreventtheemergencyfromhappening.一次風量不足1.3.1Insufficientprimaryairflow管道系統阻力超過風機規(guī)定風壓Theresistanceofpipelinesystemisbeyondspecifiedairpressureoffan.一次風壓不足1.3.2Insufficientairpressure管道系統阻力估計過低Theestimationforresistanceofpipelinesystemistoolow.1.3.3電動機超載1.3.3Overloadofmotor1)風壓過低致使風量過大1)Toolowairpressurecausestoobigairflow.2)進口氣體溫度過低，氣體密度過大，使風機壓頭過高2)Toolowtemperatureofinletairandtoobigdensityofaircausetoohighpressureheadoffan.3)風機內部發(fā)生摩擦碰撞現象3)Frictionandcollisiontakeplaceinfan.4)開車時進口調節(jié)門未關嚴4)Inletadjustablevalveisnottightlyclosedduringstart-up.5)電動機輸入電壓過低或電源單相斷電5)Toolowinputvoltageofmotororsingle-phasepoweroffofpowersupply6)受軸承箱振動劇烈的影響6)Effectedbyviolentvibrationofbearingbox1.3.4一次風機體振動1.3.4Vibrationofprimaryairfanbody1)風機與電機軸不同心1)Thefanandmotorarenotconcentric.2)轉子與機殼或進風口有碰撞現象2)Rotorcollideswithshellorairinlet.3)由于葉片有積灰、污垢、葉片磨損、葉片變形、主軸彎曲使轉子平衡受到破壞3)Thebalanceofrotorisdestroyedowingtoashdeposit,dirt,abrasionanddistortionofbladesandbendingofmainshaft.4)基礎不牢固，或地腳螺栓松動4)Foundationisnotfirmorthefoundationboltisloose.5)負荷急劇變化或風機處于喘振區(qū)內工作5)Loadseverelychangesorthefanworksinsurgearea.6)葉輪軸孔與主軸配合松動6)Thematchbetweenshaftholeofimpellerandmainshaftisloose.7)機殼與撐腳、軸承箱與底座連接螺栓松動7)Theconnectingboltsofshellandsupportingfootortheconnectingboltsofbearingboxandbaseframeareloose.8)風機進出口管道安裝不良，產生共振

8)Inletandoutletpipesoffanarebadlyfitted,whichcausesresonance.1.3.5軸承溫升過高1.3.5Over-highbearingtemperaturerise1)軸承箱振動劇烈

1)Severevibrationofbearingbox2)潤滑油質量不良或軸承箱油位過低2)Badqualityoflubricatingoilortoolowoillevelofbearingbox2.2二次風機的調試與運行2.2Commissioningandoperationofsecondaryairfan2.2.1二次風機調試前的準備工作2.2.1Preparationbeforecommissioningofsecondaryairfan1）詳細檢查所有螺栓是否緊固。1)Detailedlyinspectwhetherallboltsaretightenedornot.2）檢查葉輪、進口導葉調節(jié)門與電動機的旋轉方向是否正確。2)Inspectwhethertherotationdirectionsofimpeller,inletguidevaneadjustablevalveandmotorarecorrectornot.3）檢查機殼、進氣箱和進出口管道是否遺留下雜物。3）Inspectwhethertheforeignmattersareleftatshell,airintakeboxandinlet/outletpipeornot.4）檢查儀表連接是否正確。4)Inspectwhethertheconnectionsofinstrumentsarecorrectornot.2.2.2 二次風機導葉調節(jié)門傳動機構的調試2.2.2Commissioningofdrivingmechanismofguidevaneadjustablevalveofsecondaryairfan1）在調節(jié)門處于關閉位置的情況下，檢查調節(jié)桿的位置是否正確，規(guī)定調節(jié)門的相鄰葉片必須接觸，如果檢查下來相鄰葉片不互相接觸，必須加以調整和固定。1)Undertheconditionthattheadjustablevalveisclosed,inspectwhetherthepositionofadjustablerodiscorrectornot.Prescribethattheadjacentbladesofadjustablevalvemustcontacteachother.Iftheadjacentbladesdonotcontacteachotherafterinspection,theymustbeadjustedandfixed.2）調節(jié)門的設計方向與葉輪的旋轉方向相同，即在調節(jié)門關閉的情況下，介質的預流動方向與葉輪的旋轉方向相同。2)Thedesigndirectionofadjustablevalveisthesameasrotarydirectionofimpeller.Thatistosay,undertheconditiontheadjustablevalveisclosed,thepreflowingdirectionofmediumisthesameastherotationdirectionofimpeller.3）必須對傳動機構聯桿長度進行調節(jié)，保證電動執(zhí)行機構的行程要滿足調節(jié)門全開和全閉的需要。3)Itmustadjustthelengthoflinkrodofdrivingmechanisminordertoensuretheoperatingprocessofelectricmotoractuatorshouldmeettherequirementsoffullopeningandclosingofadjustablevalve.4)二次風機啟動前應關閉出口擋板，空載啟動。4)Closeoutletdamperbeforestartupthesecondaryairfanwithnoload.2.2.3二次風機的聯動試車2.2.3Interlockcommissioningofsecondaryairfan1）風機應在無載荷的情況下啟動，即關閉風機的進口調節(jié)門，并將風機出口管道中的閥門開啟，以防止電機過載。風機在調節(jié)門關閉的情況下，運行時間不得過長。如情況良好，在風機達到額定轉速后，再將調節(jié)門逐漸開啟，以達到風機的設計額定工況點。1)Thefanshouldbestartedundertheconditionofnoload,thatistosay,closetheinletadjustablevalveoffanandopenthevalveintheoutletpipeoffaninordertopreventoverloadofmotor.Undertheconditionthattheadjustablevalveoffanisclosed,theoperatingtimecannotbetoolong.Iftheconditionisgood,graduallyopentheadjustablevalveafterthefanreachesratedrotationspeedsoastoattaindesignratedworkingconditionpointoffan.2.2.3二次風機的聯動試車2.2.3Interlockcommissioningofsecondaryairfan1）風機應在無載荷的情況下啟動，即關閉風機的進口調節(jié)門，并將風機出口管道中的閥門開啟，以防止電機過載。風機在調節(jié)門關閉的情況下，運行時間不得過長。如情況良好，在風機達到額定轉速后，再將調節(jié)門逐漸開啟，以達到風機的設計額定工況點。1)Thefanshouldbestartedundertheconditionofnoload,thatistosay,closetheinletadjustablevalveoffanandopenthevalveintheoutletpipeoffaninordertopreventoverloadofmotor.Undertheconditionthattheadjustablevalveoffanisclosed,theoperatingtimecannotbetoolong.Iftheconditionisgood,graduallyopentheadjustablevalveafterthefanreachesratedrotationspeedsoastoattaindesignratedworkingconditionpointoffan.2.2.4立即停車事件2.2.4Emergencyshutdown1）風機或電動機啟動時有明顯的異?，F象或摩擦聲響。

1)Obviouslyabnormalconditionsorgratingduringthestart-upofmotororfan2）風機軸承溫度、軸承的振動超過規(guī)定值。2)Thebearingtemperatureandvibrationoffanexceedspecifiedvalue.3）調節(jié)門的調節(jié)失靈。3)Theadjustmentofadjustablevalvehasafault.4）電動機突然過載。4)Motoroverloadssuddenly.5）涉及人身和機組安全的其它意外情況。5)Othersuddennessrelatedtopersonnelsafetyandunitsafety2.3二次風機的主要故障及原因2.3Mainfaultsofsecondaryairfanandcauses在風機運轉過程中，可能發(fā)生某些故障，對發(fā)生的故障必須迅速查明原及時解決，以防止事故的發(fā)生。Intherunningprocessoffan,somefaultsmaytakeplace,andthecausesmustbefoundoutquicklyandthefaultsmustbesolvedintimeinordertopreventtheemergencyfromhappening.二次風量不足2.3.1Insufficientsecondaryairflow管道系統阻力超過風機規(guī)定風壓Theresistanceofpipelinesystemisbeyondspecifiedairpressureoffan.二次風壓不足2.3.2Insufficientsecondaryairpressure管道系統阻力估計過低。Theestimationofresistanceofpipelinesystemistoolow.2.3.3電動機超載2.3.3Overloadofmotor1）風壓過低致使風量過大1)Toolowairpressurecausestoobigairflow.2）進口氣體溫度過低，氣體密度過大，使風機壓頭過高2)Toolowtemperatureofinletairandtoobigdensityofairmaketoohighpressureheadoffan.3）風機內部發(fā)生摩擦碰撞現象3)Frictionandcollisiontakeplaceinfan.4）開車時進口調節(jié)門未關嚴4)Inletadjustablevalveisnottightlyclosedduringstart-up.5）電動機輸入電壓過低或電源單相斷電5)Toolowinputvoltageofmotororsingle-phasepoweroffofpowersupply6）受軸承箱振動劇烈的影響6)Effectedbyseverevibrationofbearingbox2.3.4二次風機體振動2.3.4Vibrationofsecondaryairfanbody1）風機與電機軸不同心1)Thefanandshaftofmotorarenotconcentric.2）轉子與機殼或進風口有碰撞現象2)Rotorcollideswithshellorairinlet.3）由于葉片有積灰、污垢、葉片磨損、葉片變形、主軸彎曲使轉子衡受到破壞3)Thebalanceofrotorisdestroyedowingtoashdeposit,dirt,abrasion,distortionofbladesandbendingofmainshaft.4）基礎不牢固，或地腳螺栓松動4)Foundationisnotfirmorthefoundationboltisloose.5）負荷急劇變化或風機處于喘振區(qū)內工作5)Loadseverelychangesorthefanworksinsurgearea.6）葉輪軸孔與主軸配合松動6)Thematchbetweenshaftholeofimpellerandmainshaftisloose.7）機殼與撐腳、軸承箱與底座連接螺栓松動7)Theconnectingboltsofshellandsupportingfootortheconnectingboltsofbearingboxandbaseframeareloose.8）風機進出口管道安裝不良，產生共振8)Thepipesatinletandoutletareirregularlyinstalled,whichcausesresonance.2.3.5軸承溫升過高2.3.5Over-highbearingtemperaturerise1）軸承箱振動劇烈1)Severevibrationofbearing2）潤滑油質量不良或軸承箱油位過低2)Badqualityoflubricatingoilortoolowoillevelofbearingbox3.2引風機的調試與運行3.2CommissioningandoperationofIDfan3.2.1引風機調試前的準備工作3.2.1PreparationsbeforecommissioningofIDfan1）詳細檢查所有螺栓是否緊固。1)Detailedlyinspectifallboltsaretight.2）檢查葉輪、進口導葉調節(jié)門與電動機的旋轉方向是否正確。2)Inspectwhethertherotationdirectionsofimpeller,adjustablevalveofinletimpellerandmotorarecorrectornot.3）檢查機殼、進氣箱和進出口管道是否遺留下雜物。3)Inspectwhetherforeignmattersareleftattheshell,airintakeboxandinlet/outletpipeornot.4）檢查儀表連接是否正確。4)Inspectwhethertheconnectionofinstrumentsiscorrectornot.3)必須對傳動機構聯桿長度進行調節(jié)，保證電動執(zhí)行機構的行程要滿足調節(jié)門全開和全閉的需要。3)Itmustadjustthelengthoflinkrodofactuatortoensuretheprogressof3.2.2 引風機導葉調節(jié)門傳動機構的調試3.2.2CommissioningofdrivingmechanismofguidevaneadjustablevalveofIDfan1）在調節(jié)門處于關閉位置的情況下，檢查調節(jié)桿的位置是否正確，規(guī)定調節(jié)門的相鄰葉片必須接觸，如果檢查下來相鄰片不互相接觸，必須加以調整和固定。1)Undertheconditionthattheadjustablevalveisclosed,inspectwhetherthepositionofadjustablerodiscorrectornot.Prescribethattheadjacentbladesofadjustablevalvemustcontacteachother.Iftheadjacentbladesdonotcontacteachotherafterinspection,theymustbeadjustedandfixed.2)調節(jié)門的設計方向與葉輪的旋轉方向相同，即在調節(jié)門關閉的情況下，介質的預流動方向與葉輪的旋轉方向相同。2)Thedesigndirectionofadjustablevalveisthesameasrotationdirectionofimpeller,thatistosay,undertheconditionthattheadjustablevalveisclosed,thepreflowingdirectionofmediumisthesameastherotationdirectionimpeller.electricmotoractuatorshouldtallywiththedemandsoffullopeningorfullclosingofadjustablevalve.4)在風機啟動之前，調節(jié)門必須關閉。4)Theadjustablevalvemustbeclosedbeforethefanisstartedup.3.2.3 引風機的聯動試車3.2.3InterlockcommissioningofIDfan1)風機應在無載荷的情況下啟動，即關閉風機的進口調節(jié)門，并將風機出口管道中的閥門開啟，以防止電機過載。風機在調節(jié)門關閉的情況下，運行時間不得過長。如情況良好，在風機達到額定轉速后，再將調節(jié)門逐漸開啟，以達到風機的設計額定工況點。1)Thefanshouldbestartedundertheconditionofnoload,thatistosay,closetheinletadjustablevalveoffanandopenthevalveinoutletpipeoffaninordertopreventoverloadofmotor.Undertheconditionthattheadjustablevalveoffanisclosed,theoperatingtimecannotbetoolong.Iftheconditionisgood,graduallyopentheadjustablevalveafterthefanreachesratedrotationspeedsoastoattaindesignratedworkingconditionpointoffan.2)在風機運行過程中，注意監(jiān)控軸承的溫度。軸承的溫度在達到穩(wěn)定之前的最初幾個小時之內，溫度值會直線上升，但隨后會穩(wěn)定在一個溫度值。運行過程中，軸承溫升不得超過40℃。注意監(jiān)控軸承部的均方根振速測定值，其值不得超過4.0mm/s。2)Duringtheoperatingprocessoffan,payattentiontomonitoringthebearingtemperature.Withintheinitialseveralhoursbeforethetemperatureattainsstablelevel,thetemperaturevaluewillrisefastasastraightline,butlateritwillstayatonevalue.Duringoperation,bearingtemperatureshouldnotexceed80℃.Payattentiontomonitoringtheroot-mean-squarevibrationspeeddeterminedvalueofbearinganditsvalueshouldnotexceed4.0mm/s.3)風機的聯動試車時間不得低于72小時。3)Thetimeofinterlockcommissioningoffanshouldnotbelessthan72hours.4)風機啟動前應關閉出口擋板，空載啟動。4)Theoutletdampershouldbeclosedbeforestartuptheprimaryairfan,anditisstartedwithno-load.3.2.4 立即停車事件3.2.4Emergencyshutdown1)風機或電動機啟動時有明顯的異?，F象或摩擦聲響。1)Themotororfanhasobviousandabnormalconditionsorgratingduringstart-up.2)風機軸承溫度、軸承的振動超過規(guī)定值。2)Thebearingtemperatureandvibrationoffanexceedspecifiedvalue.3)調節(jié)門的調節(jié)失靈。3)Theadjustmentofadjustablevalvehasfault.4 )電動機突然過載。4)Motoroverloadssuddenly.5)涉及人身和機組安全的其它意外情況。5)Othersuddennessrelatedtopersonnelsafetyandunitsafety3.3引風機的主要故障及原因3.3MainfaultsofIDfanandcauses

在風機運轉過程中，可能發(fā)生某些故障，對發(fā)生的故障必須迅速查明原及時解決，以防止事故的發(fā)生。Intherunningprocessoffan,somefaultsmaytakeplace,andthecausesmustbefoundoutquicklyandthefaultsmustbesolvedintimeinordertopreventtheemergencyfromhappening.引風量不足3.3.1Insufficientinduceddraftairflow管道系統阻力超過風機規(guī)定風壓Theresistanceofpipelinesystemexceedsspecifiedairpressureoffan.引風壓不足3.3.2Insufficientinduceddraftairpressure管道系統阻力估計過低。Theestimationforresistanceofpipelinesystemistoolow.3.3.3電動機超載3.3.3Overloadofmotor1)風壓過低致使風量過大1)Toolowairpressurecausestoobigairflow.2)進口氣體溫度過低，氣體密度過大，使風機壓頭過高2)Toolowtemperatureofinletairandtoobigdensityofairmaketoohighpressureheadoffan.3)風機內部發(fā)生摩擦碰撞現象3)Frictionandcollisiontakeplaceinfan.4)開車時進口調節(jié)門未關嚴4)Inletadjustablevalveisnottightlyclosedduringstart-up.5)電動機輸入電壓過低或電源單相斷電5)Toolowinputvoltageofmotororsingle-phasepoweroffofpowersupply6)受軸承箱振動劇烈的影響6)Effectedbyexquisitevibrationofbearingbox3.3.4引風機體振動3.3.4VibrationofIDfan1)風機與電機軸不同心1)Thefanandmotorarenotconcentric.2)轉子與機殼或進風口有碰撞現象2)Rotorcollideswithshellorairinlet.3)由于葉片有積灰、污垢、葉片磨損、葉片變形、主軸彎曲使轉子平衡受到破壞3)Thebalanceofrotorisdestroyedowingtoashdeposit,dirt,abrasion,distortionofbladesandbendingofmainshaft.4)基礎不牢固，或地腳螺栓松動4)

Foundationisnotfirmorthefoundationboltisloose.5)負荷急劇變化或風機處于喘振區(qū)內工作5)Loadseverelychangesorthefanworksinsurgearea.6)葉輪軸孔與主軸配合松動6)Thematchbetweenshaftholeofimpellerandmainshaftisloose.7)機殼與撐腳、軸承箱與底座連接螺栓松動7)Theconnectingboltsofshellandsupportingfootortheconnectingboltsbearingboxandbaseseatareloose.8)風機進出口管道安裝不良，產生共振8)Inletandoutletpipesoffanarebadlyfitted,whichcausesresonance.3.3.5軸承溫升過高3.3.5Over-highbearingtemperaturerise1)軸承箱振動劇烈 1)Severevibrationofbearingbox2)潤滑油質量不良或軸承箱油位過低2)Badqualityoflubricatingoilortoolowoillevelofbearingbox1.2增壓風機的調試與運行

1.2Commissionandoperationofboosterfan

1.2.1 增壓風機調試前的準備工作1.2.1Preparationworkbeforeboosterfancommission1）詳細檢查所有螺栓是否緊固。1)Thoroughlycheckwhetheralltheboltsarefastened.2）檢查葉輪、進口導葉調節(jié)門與電動機的旋轉方向是否正確。2)Checkwhethertherotationdirectionsofimpeller,governingvalveofinletguidevaneandthegeneratorareright.3）檢查機殼和進出口管道是否遺留下雜物。3)Checkwhetherimpuritiesremainintheenclosure,inletandoutletpipes.4）檢查儀表連接是否正確。4)Checkwhethertheinstrumentsconnectionisright.1.2.2 增壓風機導葉調節(jié)門傳動機構的調試1.2.2Thecommissionofdrivingorganontheguidevanegoverningvalveofboosterfan1）在調節(jié)門處于關閉位置的情況下，檢查調節(jié)桿的位置是否正確，規(guī)定調節(jié)門的相鄰葉片必須接觸，如果檢查下來相鄰葉片不互相接觸，必須加以調整和固定。1）Asthegoverningvalveisclosed,checkwhetherthepositionofadjustingrodiscorrect,itisregulatedthattheadjacentbladesofgoverningvalvemustconnectwitheachother,otherwise,theymustbeadjustedandfastened.2）調節(jié)門的設計方向與葉輪的旋轉方向相同，即在調節(jié)門關閉的情況下，介質的預流動方向與葉輪的旋轉方向相同。2）Thedesigndirectionofgoverningvalveshouldbethesameastherotationdirectionofimpeller,thatistosay,asthegoverningvalveisclosed,thepreflowingdirectionofmediumshouldbethesameastherotationdirectionofimpeller.3）必須對傳動機構聯桿長度進行調節(jié)，保證電動執(zhí)行機構的行程要滿足調節(jié)門全開和全閉的需要。3)Itisrequiredtoadjustthelinklengthofdrivingorgantoensurethestrokeofelectricactuatortosatisfytherequirementsoffullopeningandclosingofgoverningvalve.4）在風機啟動之前，調節(jié)門必須關閉。4)Thegoverningvalvemustbeclosedbeforethefanisstarted.1.2.3 增壓風機的聯動試車1.2.3Interlockedtestrunningofboosterfan1） 風機應在無載荷的情況下啟動，即關閉風機的進口調節(jié)門，并將風機出口管道中的閥門開啟，以防止電機過載。風機在調節(jié)門關閉的情況下，運行時間不得過長。如情況良好，在風機達到額定轉速后，再將調節(jié)門逐漸開啟，以達到風機的設計額定工況點。1)Thefanshouldbestartedinano-loadcondition,thatistosay,closetheinletgoverningvalveoffanandstartupthevalveintheoutletpipeoffantoavoidoverloadofmotor.Asthegoverningvalveisclosed,theoperationtimeoffanshouldnotbetoolong.Iftheconditionisgood,graduallystartthegoverningvalveafterthefanhasachievedtheratedrotationspeedtoreachthedesignratedoperationpointoffan.2） 在風機運行過程中，注意監(jiān)控軸承的溫度。軸承的溫度在達到穩(wěn)定之前的最初幾個小時之內，溫度值會直線上升，但隨后會穩(wěn)定在一個溫度值。運行過程中，軸承溫升不得超過80℃。注意監(jiān)控軸承部的均方根振速測定值，其值不得超過4.0mm/s。2)Intheprocessoffanoperation,payattentiontosupervisingthetemperatureofbearing,whichwillriseinastraightlineinthefirstseveralhoursbeforebecomingstable,however,itwillbestableatacertainvalue.Thebearingtemperatureshouldnotexceed80℃intheprocessofoperation.Trytomonitortherootmeansquaremeasuredvalueofvibrationspeed,whichshouldnotbeover4.0mm/s.3）風機的聯動試車時間不得低于72小時。3)Theinterlockedtestrunningtimeoffanshouldbenolessthan72hours.4）增壓風機應投焦之前啟動。4)Boosterfanshouldbestartedbeforefeedingspongecoal.5）風壓、風量根據播焦情況來調節(jié)風道旁路。5)Forairpressureandairflow,adjusttheairductbypassaccordingtocoalspreadingconditions.1.2.4立即停車事件1.2.4Immediateshutdownaccident1）風機或電動機啟動時有明顯的異?，F象或摩擦聲響。1)Obviousabnormalphenomenonorfractionsoundisfoundasthefanormotorisstarted.2）風機軸承溫度、軸承的振動超過規(guī)定值。Thebearingtemperatureandvibrationoffanexceedthestatedvalue.3）調節(jié)門的調節(jié)失靈。Theadjustmentofgoverningvalveisoutofwork.4）電動機突然過載。Suddenoverloadofmotorhappens.5）涉及人身和機組安全的其它意外情況Otheraccidentsinvolvepersonnelandunitsafety.

增壓風機的主要故障及原因

1.3Mainfaultsofboosterfanandcauses

在風機運轉過程中，可能發(fā)生某些故障，對發(fā)生的故障必須迅速查明原因，及時解決，以防止事故的發(fā)生。Somefaultsmayhappenintheprocessoffanoperation,findoutthecausesimmediatelyandmakesolutionintimetoavoidaccidents.增壓風量不足1.3.1Insufficientboostairflow管道系統阻力超過風機規(guī)定風壓。Resistanceinpipelinesystemexceedsthestipulatedairpressureoffan.增壓風壓不足1.3.2Insufficientboostairpressure管道系統阻力估計過低。Theresistanceinpipelinesystemisestimatedtoolow.1.3.3電動機超載1.3.3Overloadofmotor1）風壓過低致使風量過大1)Toolowairpressuremakesairflowtoolarge.2）進口氣體溫度過低，氣體密度過大，使風機壓頭過高2)Toolowinletairtemperatureandtoolargeairdensitymakefanpressureheadtoohigh.3）風機內部發(fā)生摩擦碰撞現象Frictionandcollisionphenomenahappeninsidethefan.4）開車時進口調節(jié)門未關嚴4)Theinletgoverningvalveisnotclosedtightlyduringstartup.5）電動機輸入電壓過低或電源單相斷電5)Inputvoltageofmotoristooloworsinglephaseofpowersupplyisoutofpower.6）受軸承箱振動劇烈的影響6)Itisaffectedbyviolentvibrationofbearingbox.1.3.4增壓風機體振動1.3.4Vibrationofboosterfanbody1）風機與電機軸不同心1)Fanandmotorshaftsarenotconcentric.2）轉子與機殼或進風口有碰撞現象2)Collisionphenomenonhappensbetweenrotor,enclosureorairinlet.3）由于葉片有積灰、污垢、葉片磨損、葉片變形、主軸彎曲使轉子平衡受到破壞Rotorbalanceisdamagedarisingfromashaccumulationanddirtonblades,bladedeformationandmainshaftbending.4）基礎不牢固，或地腳螺栓松動4)Thebaseisnotsolid,oranchorboltsareloose.5）負荷急劇變化或風機處于喘振區(qū)內工作5)Loadchangesdramaticallyorfanworksinthesurgingarea.6）葉輪軸孔與主軸配合松動6)Thecombinationbetweenimpellershaftholeandmainshaftlooses.7）機殼與撐腳、軸承箱與底座連接螺栓松動7)Connectingboltsbetweenenclosureandsupport,bearingboxandchassisloose.8）風機進出口管道安裝不良，產生共振Theinletandoutletpipesoffanareproperlyinstalled,producingresonance.1.3.5軸承溫升過高1.3.5Toohighriseofbearingtemperature1）軸承箱振動劇烈1)Bearingboxvibratesacutely.2）潤滑油質量不良或軸承箱油位過低2)Lubricatingoilqualityisbadoroillevelofbearingboxistoolow.3.4風機的維護3.4Maintenanceforairfan運行過程中的維護3.4.1Maintenanceduringoperation運行過程中的維護在運行過程中，每隔一小時應將所有儀表的讀數做好記錄，如發(fā)現與上次記錄有急劇變化時，應立即查明原因并排除。特別要注意對軸承溫度、冷卻水情況、運行的穩(wěn)定性以及軸承箱部的油封的定期檢查。此舉的目的是為了保持風機良好的運行狀況直至計劃停機。Intheprocessofoperation,recordreadingsofallinstrumentseveryotherhour.Iffindthereadingchangesseverelyaftercompareitwithlastreading,findoutthereasonandeliminateitatonce.Especiallypayattentiontobearingtemperature,conditionofcoolingwater,stabilityofoperationandperiodicalinspectionforoilsealofbearingbox.Thisaimstokeepgoodoperatingconditionoffanuntil

plannedshutdown.臨時停機期間的檢修3.4.2Maintenanceduringtemporaryshutdown如果機組的其它設備在風機計劃處停機，那么這個機會應用于風機的檢修。風機主要的磨損件（密封、軸承等）需借此機會檢查一下。手工清除葉輪雜質，檢查葉輪的磨損狀況。Ifotherdevicesofunitshutdowninaplannedsituation,thischanceshouldapplytomaintenanceoffan.Themainwearingparts(suchasseal,bearingandsoon)offanneedtobecheckedbythischance.Manuallygetridofforeignmattersofimpellerandchecktheabrasionofit.計劃停機期間的檢修3.4.3Maintenanceintheperiodofplannedshutdown計劃停機時間的檢修計劃停機時間，所做的工作應使風機能夠無故障運行到下一個計劃停機期。我們建議做如下工作：Duringtheperiodofplannedshutdown,theworkistomakethefanoperatetonextperiodofplannedshutdownwithoutfault.Wesuggestthatfollowingworksshouldbedone:1)檢查葉輪雜質并清除1)Checkandeliminateforeignmattersofimpeller.2)檢查葉輪的磨損狀況2)Checktheabrasionofimpeller.3)更換軸承的潤滑油3)Replacethelubricatingoilofbearing.4)檢查風機各處密封，如損壞則更換4)Checkallsealsoffan,andreplacedamagedones.5)檢查聯軸器的性能5)Checktheperformanceofcoupling.6)檢查膨脹節(jié)的磨損情況6)Checktheabrasionofexpansionjoint.7)清理風機機殼、進氣箱及管道風機進行試運轉后，完成檢修。7)Cleantheshelloffan,airintakeboxandpipes.Themaintenanceisfinishedafterthecommissioningoffanisdone.1.鍋爐的巡回檢查1.Patrolinspectionofboiler

巡回檢查路線1.1Patrolinspectionline控制室――給水平臺――給焦機――下焦口――送、引風機――排渣機――電除塵器――油庫――鍋爐本體鍋爐――水位計――壓力表――膨脹指示器――控制室Controlroom–feedwaterplatform—coalfeeder---coaldownspout—IDfan,FDfan---slagdischargingmachine---ESP---fueloilstoreroom—boilerproper---waterlevelmeter---pressuremeter---expansionindicator---controlroom1.2巡回檢查項目內容1.2Itemsandcontentofpatrolinspection1)鍋爐膨脹節(jié)：檢查膨脹節(jié)有無泄漏，磨損，法蘭螺絲的松動，保險桿位置對正，拉緊。

1)Boilerexpansionjoint:inspectwhethertheexpansionjointleaksorisabradedornot,whetherthescrewofflangeislooseornotandwhetherthepositionofsafetyrodalignsandstrainsornot.2）鍋爐汽包：檢查鍋爐汽包連接有無泄漏，檢查汽包上的壓力表，并于控制室的壓力進行校對，檢查連排閥是否有泄漏，檢查各水位計是否清晰，并正常投入，檢查安全門是否備用和泄漏，是否有異物卡設現象。2)Boilersteamdrum:inspectwhethertheconnecti