BLD型鍋爐承壓管泄漏在線監(jiān)測系統(tǒng)運行維護安裝維護中英文

1、印度古德洛爾2600MW燃煤電站項目專用印度古德洛爾2X600MW燃煤電站項目INDIACUDDALORE2600MWPOWERPROJECTBLD型鍋爐承壓管泄露在線監(jiān)測系統(tǒng)BLDOn-lineLeakageMonitoringSystemforPressurizedTubesinBoiler（安裝保護說明書）（InstallationandMaintenanceManual）SUBMITTEDBY東北電院開元科技有限企業(yè)NortheastChinaInstituteofElectricPowerEngineeringKaiyuanSci&TechCo.Ltd目錄Contents2600MW

2、錯誤!不決義書簽。系統(tǒng)安裝SYSTEMINSTALLATION11.1安裝構造INSTALLATIONSTRUCTURE11.2測點安裝INSTALLATIONOFOBSERVATIONPOINTS2聲導管構造StructureofSoundMeatus3測點安裝地點InstalledLocationofobservationpoints4測點開孔方法TheMethodofBoringHole6聲導管安裝方法TheMethodofInstallingSoundMeatus9聲導管的保護MaintenanceofSoundMeatus10傳感器的安裝Installationofthetransd

3、ucer111.3電纜安裝INSTALLATIONOFCABLE12接線盒的安裝InstallationofJunctionbox12電纜及接線CableandConnection131.4系統(tǒng)安裝接線SYSTEMCONNECTION14系統(tǒng)接線SystemConnection14協(xié)助信號AuxiliarySignals151.5防腐清灰裝置CLEANINGDEVICE16安裝方案InstallationScheme16技術要求TechnicalRequest17技術規(guī)(僅供參照)TechnicalSpecification(ForReference)181.6軟件安裝INSTALLATION

4、OFSOFTWARE18系統(tǒng)調試SYSTEMDEBUGGING11.7調試準備：PREPAREFORDEBUGGING:1調試條件ConditionofDebugging1開啟系統(tǒng)TurnontheSystem1防腐清灰系統(tǒng)風量調整AdjustmentofCleaningSystem11.8初步伐試PRIMARYDEBUGGING2封閉報警CloseAlarm2調整總因子AdjustTotalFactor3調整流量因子AdjustFlowFactor4設定采樣間隔SetSamplingInterval51.9參數(shù)調試PARAMETERSDEBUGGING5自動生成警界限Auto-generat

5、ionforAlarmLine5手動調整警界上線ManualAdjustmentofUpperLimitofAlarmLine6手動調整警界下線ManualAdjustmentofLowerLimitofAlarmLine8手動調整基礎噪音ManualAdjustmentofBasicNoise8通道參數(shù)統(tǒng)調ChannelParametersCentralizedAdjustment91.10調試中的幾個問題SEVERALPROBLEMSINDEBUGGING10保護檢修參照MAINTENANCEANDREPAIRREFERENCE11.11監(jiān)測主機保護MONITORINGHOSTMAINTE

6、NANCE1前、后邊板說明ExplanationofFrontPanelandBackPanel1監(jiān)測主機部構造Internalstructureofmonitoringhost3傳感器及引線TransducerandDown-lead41.12常有故障的辦理DEALWITHCOMMONFAILURES61.13器件型號說明THEEXPLAINOFTHETYPEOFDEVICE9附圖APPENDIXDRAWING11、監(jiān)測機柜構造圖THESTRUCTUREOFMONITORINGCABINET12、盤電氣接線圖THEELECTRICCONNECTIONINPLATE23、監(jiān)測主機箱插件表MON

7、ITORINGHOSTPLUG-INTABLE34、單臺爐測點部署圖LAYWATCHPOINTSDIAGRAM65、系統(tǒng)單元接線圖UNITCONNECTIONDIAGRAM7系統(tǒng)安裝SystemInstallation鍋爐承壓管泄露在線監(jiān)測系統(tǒng)，是一套專門為實時發(fā)現(xiàn)鍋爐“四管”泄露（漏）事故而設計的“計算機在線監(jiān)測系統(tǒng)”，該系統(tǒng)主要分為就地檢測部分和操作監(jiān)測部分。BLDTypeOn-lineLeakageMonitoringSystemforPressurizedTubesinBoiler,isa“on-linemonitoringcomputerwhich”isdesignedspecifi

8、callyfordetectingleakage(leakageinside)ofTubes”ofboilerintime.Thesystemincludes:groundedmonitoringpartandoperationmonitoringpart.系統(tǒng)的就地檢測部分安裝在鍋爐現(xiàn)場，操作監(jiān)測部分則集成在監(jiān)測機柜中，安裝在單元控制室或電子設施間。Groundedmonitoringpartisinstalledatboileronsite;operationmonitoringpartisintegratedinmonitoringcabinet,installedinunitcontr

9、olroomorelectronic-equipmentroom.1.1安裝構造InstallationStructure整個系統(tǒng)的就地檢測部分包括測點聲導管、一體化傳感器、就地接線盒、就地信號電纜以及防腐清灰裝置等。操作監(jiān)測部分則包括工控計算機、彩色監(jiān)視器、監(jiān)測系統(tǒng)主機、彩色打印機以及系統(tǒng)監(jiān)測機柜等。Groundedmonitoringpartincludes:soundmeatusofobservationpoints,integratedtransducer,groundedjunctionbox,groundedsignalcableandanticorrosivecleaningde

10、vice,etc.Operationmonitoringpartincludes:industrialcontrolcomputer,colormonitor,monitoringsystemhost,colorprinterandmonitoringcabinetetc.系統(tǒng)安裝構造如圖1.1所示。Installationstructureseefigure1.1:顯示器BLD-6型泄露監(jiān)測鍋爐Display主機本體BLD-6MonitoringxroeBoiler機盒bcrHostn器udeost主i管e線t感nhatnra打印機sut機o接j傳d導cHdedPrinter算edndn聲u

11、nuo計uoS就o就r鍋爐rGG本體鍵盤、鼠標協(xié)助信號AuxiliarySignalBoilerKeyboard,Mouse操作監(jiān)測部分就地監(jiān)測部分OperationMonitoringPartGroundedMonitoringPart圖1.1鍋爐泄露監(jiān)測系統(tǒng)安裝構造框圖Figure1.1Monitoringsysteminstallationstructure鍋爐承壓管泄露在線監(jiān)測系統(tǒng)的全套設施為名貴儀器，在安裝搬運過程中，應盡量注意預防沖擊和振動，免得系統(tǒng)設施產(chǎn)生破壞，造成不應有的損失。Thewholeequipmentsofthemonitoringsystemareveryexpen

12、sive.Duringtransportandinstallation，concussionandshakeshouldbeavoided,soasnottodamagedandavoidunnecessarylosses整套設施應使用一組獨自額定熱工供電電源，電壓240V1A，50HZ,該電源應引入監(jiān)測機柜中的端子排上。Thewholeequipmentusesasingleratedthermalpowersupply;thespecificationis240Vand1A.50HZ.Thepowershouldbeplacedonterminalstripinmonitoringcabi

13、net.1.2測點安裝InstallationofObservationpoints鍋爐承壓管泄露在線監(jiān)測系統(tǒng)的測點安裝，可分為聲導管和傳感器兩部分，其中重點在于聲導管的安裝。Installationofobservationpointsofthemonitoringsystemincludes:soundmeatusandtransducerpart.Thekeypointrestswithinstallationofsoundmeatuspart.聲導管構造StructureofSoundMeatus聲導管用于從爐傳達噪聲信號至傳感器。過去由?603.5mm鋼管束成，分為J型聲導管和Y型聲

14、導管，其構造見圖1.2和圖1.3。SoundMeatusisusedfortransmittingnoisesignalfromfurnacetotransducer.Usuallyitismadeofsteeltubewhichis?603.5mm.ItincludesJ-SoundmeatusandY-Soundmeatus,seefigure1.2andfigure1.3.（1）J型聲導管構造StructureofJ-SoundmeatusJ型聲導管主要用于非水平煙道的測點，其構造見圖1.2。圖中白鋼套的作用是向上搬動露出開孔，經(jīng)過此孔清理聲導管前端的積灰或結焦,還能夠適看作看火孔用,此

15、孔平常處于封閉狀態(tài)。J-soundmeatusisusedforobservationpointsofnon-levelflues;itsstructureisshowninfigure1.2.Steeltubeistheroleofexposingholewhilemovingup.Thesoundmeatuscanbecleanedthroughthishole.Italsocouldbeseenasfireholewhennecessary;itisusuallyclosed.可搬動白鋼套Steeltube870圖1.2J型聲導管構造Figure1.2J-Soundmeatus（2）Y型

16、聲導管構造StructureofY-Soundmeatus鍋爐為平衡通風系統(tǒng)，水平煙道地區(qū)易發(fā)生正壓，正壓使煙氣進入聲導管后在低溫結露化合成硫酸，使傳感器很快腐化，同時聲導管前端易積灰。Boilerisabalancedventilationsystem.Levelflueiseasytoproducepluspressure,andthepluspressuremakesfluegasentersoundmeatus;thefluegasbecomessulfuricacidatlowtemperature,andmakestranduceretchedquickly,atthesameti

17、me,itiseasytopileupashinthefrontofsoundmeatus.為預防腐化和積灰，在水平煙道地區(qū)采用圖1.3Y型構造聲導管。這種構造聲導管有一個氣源入口，經(jīng)過它不斷的送入來自鍋爐送風機出口的風，用來抵消來自爐膛部的正壓，進而起到防備傳感器結露造成的腐化，以及防備聲導管前端堵灰的作用。Inordertoavoidbeingerodedorpilingupash,Y-Soundmeatusisusedatthelevelfluepart,seefigure1.3.Y-soundmeatushasanentranceforairsource;airfromtheoutle

18、tofforceddraughtfan,issentthoughconstantlywhichisusedtocounteractpluspressurefromfurnace.Inthisway,thetransducercanbepreventedfrombeingcorrodedandpilingupash.A?9-4Hole法蘭Flange102?603.5?氣源入口700EntranceofairAsourceDirectionA圖1.3Y型聲導管構造Figure1.3Y-Soundmeatus測點安裝地點InstalledLocationofobservationpoints聲導管

19、安裝地點由傳感器有效監(jiān)測半徑確定，原則為612m。部署傳感器的數(shù)量應保證對全爐承壓受熱面泄露進行有效的監(jiān)測，且監(jiān)測應做到無盲區(qū)。Thelocationofsoundmeatusisdecidedbytheeffectiveradiusoftransducermonitoring,usuallyitis612m.Thenumberoftransducershouldensurethatallheatingsurfacesleakagecanbedetected,andensurethattheresnoblindspace.由于鍋爐型號的不同樣、構造的不同樣、安裝工藝的不同樣以及鍋爐安裝地區(qū)的不

20、同樣，因此，測點地點和數(shù)量也不同樣，詳細地點應依照鍋爐的詳細情況而設計，拜會測點地點圖（附圖）。Becauseofdifferentboilertypes,structures,installationtechniquesandlocationsoftheboilers,thenumberandlocationofobservationpointsshouldalsobedifferent.Specificlocationshouldbedesignedaccordingtodetailsofboiler，seeattachedfigure.鋼梁Steelgirder00爐墻3Furnacew

21、all0001清灰孔Cleaninghole45O頂棚Top-roof圖1.4側墻與頂棚聲導管安裝表示圖Figure1.4Theinstalledlocationofsoundmeatusonsidewallsandtop-roof測點部署應依照以下原則：Principlesofinstallinglocationofobservationpointsshouldobservetheseprinciples：（1）傳感器有效監(jiān)測半徑為612m，預防監(jiān)測出現(xiàn)盲區(qū)。1）Inordertoavoidblindspace,theeffectiveradiusoftransduceris612m.（2）

22、安裝角度除了頂棚外其余J型聲導管為仰角45O，見圖1.4；Y型聲導管為仰角30O。測點上部要留有足夠空間。2）InstalledangleofJ-soundmeatusisanelevationof45excepttop-room，seefigure1.4.InstalledangleofY-soundmeatusisanelevationof30.Enoughspaceshouldbekeptatupsideofobservationpoint.（3）測點地點要有走臺，以便于保護。（3）Platformshouldbelocatedneartheobservationpointformain

23、tenance.（4）測點確定應避開吹灰器和有壓縮風吹掃的其余測點。4）Observationpointshouldbekeptawayfromsootblowerandotherobservationpointswhichareblownbycompressionair.（5）水冷壁地區(qū)的測點應盡量利用看火孔、人孔門或閑置不用的其余測點。5）Theobservationpointsnearthewater-cooledwallshouldmakeuseoffireholes,manholesorotherunusedobservationpoints.測點開孔方法TheMethodofBor

24、ingHole（1）水冷壁利用看火孔上方三角區(qū)開孔方法1）Boringholeonwater-cooledwallmakinguseoftriangleareaabovethefirehole.大容量鍋爐過去為膜式水冷壁，水冷壁間距較小，應盡量利用原有備用吹灰孔、看火孔、人孔門等上方的三角區(qū)，減少工作量，預防彎管開孔而破壞水冷壁的原構造。Thelargecapacityboilerusuallyismembranetubewall;spacebetweenwater-cooledwallsistoosmall,sothetriangleareabovethesootblowinghole,fi

25、reholeandmanholeshouldbeusedasmuchaspossibleinordertoreducetheworkload;boringholeonsyphonshouldbeavoidinordertoprotectthestructureofwater-cooledwall.應當注意：正在應用的吹灰器孔不能夠利用。Note:Thesootblowerholewhichisinusecannotbeutilized.聲導管爐墻SoundmeatusFurnacewall看火孔、備用吹灰器孔或人孔門或人孔門Firehole,sootblowerholeormanhole圖1.

26、5水冷壁利用看火孔上方三角區(qū)開孔表示圖Figure1.5Themethodofboringholewhichmakesuseoffireholeonwater-cooledwall水冷壁上的原有開孔均有較大的裕度，完好能夠利用原開孔上方的安閑三角區(qū)安裝聲導管，見圖1.5。Theresusuallyenoughsurplusonoriginalholesonwater-cooledwall,sothetriangleareaabovetheoriginalholescanbeusedforinstallingsoundmeatus,seefigure1.5.（2）水冷壁彎管開孔方法2）Theme

27、thodofboringholeonthesyphonofwater-cooledwall當水冷壁必定彎管開孔時，其詳細開孔方法可拜會圖1.6圖。Whenboringholeonwater-cooledwallisnecessaryonsyphon，themethodseefigure1.6.鰭片開孔FinnedholeA-AAA圖1.6水冷壁彎管開孔表示圖Figure1.6Themethodofboringholemakinguseofsyphononwater-cooledwall（3）水冷壁鰭片開孔方法3）Themethodofboringholemakinguseoffinnedhol

28、eofwater-cooledwall若是水冷壁測點沒有相應的看火孔等可利用，過去鍋爐水冷壁管間距較小，考慮到安全因素，則采用在水冷壁鰭片上開窄孔的方式。豎向構造水冷壁在相鄰的鰭片上開兩條長的矩形孔，寬度按鰭片實質尺寸。利用方箱過渡進行滿焊，再將聲導管安裝到方箱上。見圖1.7。Iftherenosfireholeonwater-cooledwallcanbeusedasobservationpoint,usuallythespacebetweenwater-cooledwalltubesisnarrow;inviewofsafefactor,finnednarrowholeonwater-co

29、oledwallcanbebored.Tworectangularholesareboredoncontiguousfinsofverticalwater-cooledwall,andwidthisthesamewithfinswidth.Makinguseofboxastransitionforfulljointing,thensoundmeatuswillbeinstalledonthebox.Seefigure1.7.水冷壁管Water-cooledwalltube370裝傳感器Installtransducer鰭片開孔球閥BallvalveFinnedhole300可搬動套筒Sleev

30、etubeBox方箱2mm圖1.7利用水冷壁鰭片開孔安裝聲導管Figure1.7Themethodofboringholewhichmakesuseoffinnedholeonwater-cooledwall（4）包墻過熱器開孔方法（4）Boringholemakinguseofenclosure-wallsuper-heater鍋爐包墻過熱器節(jié)距較大，安裝聲導管時一般不需彎管，只要將鰭片開孔即可。鰭片開孔時在保證過熱器安全的前提下，盡可能使其與聲導管口徑同樣，當鰭片間距小于聲導管徑時，鰭片開孔為一橢圓孔，同時將聲導管前端適合壓扁。開孔方法見圖1.8。Theresbroadspacebetwe

31、enenclosure-wallsuper-heaters,usuallysiphonisnotneededtoinstallsoundmeatus,andfinnedholeisalreadyenough.Whilethesafetyofsuper-heaterisguaranteed,thecaliberoffinnedholeshouldbethesameassoundmeatusscaliber;whenthespacesbetweenfinsislessthanthesoundmeatusinternaldiameter,finnedholeisboredelliptical,att

32、hesametimethefrontofsoundmeatusshouldbemadeflattofitthehole,seefigure1.8包墻管Enclosure-walltube鰭片開孔聲導管SoundmeatusFinnedhole焊接Jointing圖1.8利用包墻壁鰭片開孔安裝聲導管Figure1.8Themethodofboringholewhichismakinguseofsuper-heaterofenclosure-wall聲導管安裝方法TheMethodofInstallingSoundMeatus（1）側墻聲導管安裝方法：（1）Themethodofinstallin

33、gsoundmeatusonside-wall:側墻聲導管斜段長度大于700mm，現(xiàn)場安裝確定實質應留長度。Thelengthofbeveledgeofsoundmeatusonside-wallshouldbebiggerthan700mm;actuallengthisdecidedduringinstallation.聲導管的安裝原則應保證其上部法蘭盤便于安裝及檢修傳感器。法蘭盤上部傳感器安裝高度為大于300mm（見圖1.4）。Installingsoundmeatusshouldensuretheconvenienceofinstallingandmaintainingthetransd

34、ucer.Theinstallingheightabovetheflangeshouldbemorethan300mm(seefigure1.4).安裝聲導管時應保證聲導管根部與水冷壁平齊，不同樣意聲導管伸入水冷壁側。Wheninstallingsoundmeatus,thehemlineofsoundmeatusandwater-cooledwallshouldbekeptatthesamelevel.Itisntallowedthatsoundmeatusisinsertedintowater-cooledwall.聲導管與包墻護板滿焊，固定可靠。全部側墻聲導管安裝時型聲導管與側墻呈45角

35、（仰角45，）Y型聲導管則仰角為30角，以預防運行時積灰擁擠聲導管通道，影響正確報警。聲導管與側墻相對地點見圖1.4左圖。Soundmeatusandenclosure-wallarefullweld,fixedandcredible.AllangelsbetweenJ-soundmeatusandsidewallare45o(elevationsare45o),elevationanglebetweenY-soundmeatusandsidewallare30o,inordertoavoidashblockingsoundmeatusandaffectingaccuratealarm,see

36、figure1.4ontheleft.（2）側包墻聲導管安裝方法：（2）Themethodofinstallingsoundmeatusonside-enclosure-wall：側包墻過熱器聲導管安裝方法基本與圖1.4同樣，鰭片開孔為一橢圓孔，與護板滿焊。Themethodofinstallingsoundmeatusonside-enclosure-wallsuper-heaterisbasicallythesameasfigure1.4,finnedholeiselliptical;soundmeatusandprotectingboardarefulljointing.詳見安裝施工方案

37、Detailsseeinstallationscheme.（3）頂棚聲導管的安裝方法：（3）Themethodofinstallingsoundmeatusontop-roof：頂棚聲導管的前端直段應依照保溫層厚度確定，見圖1.4右圖。保溫層外聲導管直段長度不小于1000mm，能夠用同種類的鋼管延伸連結。Thefrontstraightpartofsoundmeatusontop-roofshouldbedecidedaccordingtothicknessofthermalinsulatinglayer,seerightfigure1.4.Thelengthofsoundmeatusouts

38、ideofthermalinsulatinglayershouldnbetlessthan1000mm,steeltubeofthesametypecanbeusedforextention.聲導管的保護MaintenanceofSoundMeatus運行時期應如期清理積灰及結焦，保證聲導管的暢達，當計算機顯示聲導管堵灰信息時，應實時翻開清灰孔檢查堵灰情況并進行清灰辦理。Cleaningshouldbetakenperiodicallyduringoperationinordertoensurethatsoundmeatussareexpedited.Whencomputerdisplayst

39、heinformationofashblockage,shouldopenhole,checkashblockingandcleaningshouldbetakenassoonaspossible.鍋爐大小修時期應檢查聲導管焊接部分可否零散或產(chǎn)生裂紋。Duringcheck-upperiod,cracksonthemeatusshouldbechecked.傳感器的安裝Installationofthetransducer傳感器的外型如圖1.9所示，是一個帶有法蘭盤的柱體。安裝時，將傳感器的法蘭盤與聲導管的法蘭盤瞄準，中間再加上3mm厚的石棉墊或3mm厚的耐熱橡膠墊，爾后用M830的螺栓固定好

40、即可。Theexterioroftransducerseefigure1.9,itisacolumnwithflange.Duringinstallation,maketheflangeoftransduceraimattheflangeofsoundmeatus,adding3mmasbestospador3mmovenproofrubbermatinthemiddle,thenfixedbyM830bolt.圖1.9傳感器外型圖Figure1.9Theexterioroftransducer由于傳感器的法蘭盤是采用絕緣資料制成的，因此，螺栓要加平墊和彈墊，注意螺栓不要擰的過緊，以防備電木法

41、蘭變形。Becauseflangeoftransducerismadeofinsulatedmaterial,boltshouldbeunderlaidbyflatmatandspringmat.Makesuretheboltisntscrewedtootighttoavoidflangebeingdistorted.改換傳感器時，先擰下航空插頭，再卸掉四個螺栓，換上新的傳感器再將航空插頭接上即可。Whentransducerisbeingreplaced,demounttheavigationplugandotherfourboltsfirst,thenexchangenewtransduc

42、erandconnecttheaviationplug.傳感器為名貴元件，應嚴格預防振動，更不能夠用任何物品敲打，以預防造成不應有的損失。Transducerisexpensive,shakingorbeatingshouldbeavoidedtopreventloss.1.3電纜安裝Installationofcable就地部分的安裝除聲導管和傳感器以外，還包括電纜敷設、接線盒的安裝。Installationofgroundedpartincludeslayingcablesandinstallingjunctionbox,inadditiontoinstallingsoundmeatusa

43、ndtransducer.接線盒的安裝InstallationofJunctionbox接線盒的安裝數(shù)量為4個，采用20線左右的熱工信號端子箱。Thenumberofjunctionboxesusuallyis4,usingthermalsignaljunctionboxwithabout20threads.端子箱的地點一般應湊近所要接入的全部測點，并且盡量湊近熱工電纜走線槽或電纜橋架。鍋爐的甲、乙兩側適合地點各放一個，在尾部煙道測點周邊放置一個，在水平煙道處放置一個。Thelocationofjunctionboxshouldbeclosetoallofobservationpointwhi

44、chwillbejoined,andplacedasclosetothermalcableslotorcablebridgeaspossible.Putoneboxonbothsidesoftheboiler,onenearobservationpointsoftailflueandoneonthelevelflue.若是用戶的鍋爐為670噸或更小的鍋爐，也能夠省卻水平煙道的接線盒，將水平煙道的測點就近分別引入甲、乙兩側的接線盒和尾部煙道處的接線盒，甲、乙兩測的接線盒地點應相對提高。Iftheboileris670torsmaller,junctionboxoflevelfluecanbesp

45、ared,butthejunctionboxesatfirstandsecondsidesoftheboilershouldbeheightened.電纜及接線CableandConnection本系統(tǒng)現(xiàn)場由接線盒到傳感器的電纜采用ZRKVVP41.0的電纜，實質使用中，只取用其中的3芯，另一芯備用。由接線盒到控制柜的電纜采用ZRKVVP6（14、22）1.0的兩種電纜。ThesystemonsitebythejunctionboxtothesensorcableadoptsZRKVVP4x1.0cable,inactualuse,onlyuseoneofthethreecore,anothe

46、rcore.Setaside.FromconnectortothecontrolcabinetofcableusingZRKVVP6(14,22)x1.0twokindsofcable.接線盒至控制盤端子排的電纜，采用多芯，其芯數(shù)的多少，視接入該接線盒傳感器的數(shù)量而定，基根源則為：傳感器個數(shù)21芯公共線+1芯備用。其接線方法可參照圖1.10。（注意：為了檢修方便公共線以不高出個測點引出一根）Fromjunctionboxtoterminalsincontrolpanel,multi-corecableshouldbeused.Thenumberofcoresisdecidedaccording

47、tothenumberoftransducersbeingconnected.Theprincipleisthatthenumberoftransducers21commonthread+1sparethread.Themethodofconnectingisshowninfigure1.10.(Note:inordertomakeoverhaulconvenient,thereshouldbeonecommonthreadforatmost6observationpoints.)rrreeecccuuu器d器d器dsssnnn感a感a感arrr傳.12傳.3傳.號o號o號oNNN1t2t3t

48、ccc.eee接n接n接nnnnoooCCCxob盒n123456789.o接cnuJrecud器sn感art傳N.號oNtNce接nnoC去盤內端子排ZRKVVP-1.0(n2+2)GototerminalsincontrolpanelZRKVVP-1.0(n2+2)圖1.10接線盒接線表示圖Figure1.10Connection1.4系統(tǒng)安裝接線SystemConnection系統(tǒng)接線SystemConnection若是用戶選擇帶機柜的監(jiān)測系統(tǒng)，設施安裝構造見附錄機柜構造圖。如不采用本系統(tǒng)專用機柜則計算機主機與彩色督查器、計算機鍵盤間應就近放置，主機將有24條電纜接入泄露監(jiān)測端子排上。一

49、般情況下計算機主機在泄露監(jiān)測主機上方，這樣便于電纜的連結。以上電纜均由廠家向用戶供應。Ifuserchoosesthemonitoringsystemwithcabinet,thestructureofinstallationisshowninappendixwithcabinetstructure.Ifuserdoesntchoosecabinet,thehostcomputer,colormonitorandkeyboardshouldbeputtogether.Thereare24cablesconnectinghostwithmonitoringcabinet.Usuallyputth

50、ehostonthemonitorhostforconvenientconnection.Cablesbareprovidedbymanufacturer.系統(tǒng)整體安裝接線如圖1.11所示Thewholeconnection,seefigure1.11.就地電纜爐4墻傳感器124路可向上搬動白鋼套套注：接線盒至系統(tǒng)監(jiān)測機柜內端子排的就地電纜采用多芯的熱工障蔽電纜。接線盒系XA統(tǒng)接線盒監(jiān)XB測監(jiān)接線盒機計柜測打XC算內主印接線盒機端機機XD子排圖1.11系統(tǒng)整體接線框圖FurnacewallJunctionboxXAtGroundedcableeJunctionib4aboxXBcgnJunct

51、ionitSensorrosboxXCtor124iHnerogtJunctionuemnptinnrmiboxXDoroSleevecansiunCnobemovedupiMmreTNote:groundedcableswhichconnectterminalstojunctionboxadoptmulti-corecables.Figure1.11Thewholeconnection協(xié)助信號AuxiliarySignals協(xié)助信號和就地的監(jiān)測信號均應接入相應表盤的盤端子排上，爾后，用截面為0.5mm左右的軟導線接入泄露監(jiān)測主機的插件上。泄露監(jiān)測系統(tǒng)對協(xié)助信號的要求以下表所示。Auxilia

52、rysignalsandgroundedmonitoringsignalsshouldconnectwithappropriateterminalsofdialplate,thenconnectedtoplug-inofmonitorbyflexiblecircuitconductorwhosesectionis0.5mm.Therequestfortheauxiliarysignalsareasfollows:序號名稱數(shù)量規(guī)格連結設施用途或根源numberNameAmountSpecConnectequipmentUseororigin開關量輸出對常開（240V5A）光字排或報警器熱工信號、

53、泄露報警Switchoutput1pairNormallyopenedLightwordsorannunciatorThermalsignal,contact（240V5A）leakagealarm2開關量輸出對常開（240V5A）光字排或報警器熱工信號、故障報警Switchoutput1pairNormallyopenedLightwordsorannunciatorThermalsignal,failurecontact（240V5A）alarm3開關量輸入對常開（無源）吹灰開關吹灰Switchinput1pairNormallyopenedSootblowingswitchSootblo

54、wingcontact（Passive）4模擬量輸入對420流量變送器主蒸汽流量Analoginput1pair420FlowtransducerMainsteamflow5網(wǎng)線對計算機與MIS或DCS、SIS系統(tǒng)Networkline1pairJoinComputerwithMIS,DCSorSIS1.5防腐清灰裝置CleaningDevice水平煙道部分經(jīng)常會出現(xiàn)正壓情況，爐正壓易使聲導管積灰，擁擠聲音傳播的通道。煙氣遇低溫而凝固出的水分與煙氣中的二氧化硫反響生成硫酸，對金屬表面造成的腐化稱作“低溫腐化”，凝固的水份還增加了灰的附著力進而加劇了聲導管的堵灰，為解決這一問題，我們設計了防腐清

55、灰系統(tǒng)。Levelfluepartoftenproducespluspressure,whichmakessoundmeatusblockedeasily,congestedthetunneloftransmitssound.Coagulatemoistureisgeneratedwhenfluegasmeetslowtemperature.Themoisturecreatessulfuricacidwithsulfurdioxideinfluegas.Thesulfuricacidleadstosurfacecorrosiononthemetalwhichiscalled“l(fā)owtemper

56、aturecorrosion”The.moisturealsoincreasesadhesionofash,whichmakesashblockingofsoundmeatusevenworse.Tosolvetheproblem,thecleaningdeviceisdesigned.安裝方案InstallationScheme單個測點通風聲導管的組合連結方法見圖1.12。Theconnectionofsingleobservationpointofventilatedsoundmeatus,seefigure1.12.?89風源母管焊接?89airsourcemaintubeJointin

57、g?60支路延伸管（此管能夠按環(huán)境需要加長）?60spurtrackextendedtube(couldbeextended)600（指兩金屬管間距離）Y型聲導管軟管與金屬短接以螺紋Y-soundmeatus球閥形式連結metalhasBallvalve300Softtubewithscrewthreadconnection圖1.12Y型聲導管與風源母管道連結表示圖Figure1.12Y-soundmeatusconnectswithairsourcemaintube來自送風機出口的風經(jīng)過風源母管向水平煙道地區(qū)的清灰聲導管連續(xù)通入空氣，抵消鍋爐正壓，其整體連結方式參看圖1.13。Theairf

58、romdraftfaninsufflatesairtocleaningsoundmeatusatlevelfluepartbyairsourcemaintube,inordertocounteractpluspressureofboiler.Itsconnectionmode,seefigure1.13.口naf機tfa風r送dFm自oEr來FDACB序名稱規(guī)格數(shù)量備注SequenceNameSpecAmountRemarkA送風母管893Air-supplymaintubeBY型聲導管603廠家供應Y-soundmeatusManufacturerprovideC連結軟管60廠家供應Conn

59、ectingsofttubeManufacturerprovideD球閥DN50廠家供應BallvalveManufacturerprovideE風量調治閥1AirAdjustmentValveF送風母管893Air-supplymaintube圖1.13水平煙道聲導管防腐、清灰管道部署表示圖Figure1.13Placementofanticorrosive,cleaningtubes技術要求TechnicalRequest（1）保證送風不中斷；（1）Keepair-supplyconstantly;（2）風量調治閥與球閥調整好后應固定妙手柄,防備誤封閉而中斷送風；（2）Afteradjus

60、tingtheballvalveandairadjustingwalve,thehandleshouldbefixedupinordertopreventfalsecloseandstopair-supply;（3）為了方便安裝軟管，上、下兩個金屬管應在與鍋爐垂直的一個豎直平面，支路延伸管能夠適合加長，要適應調整膠管安裝長度的要求，使插接軟管的兩個金屬管間距離不大于0.6米（軟管長1米），預防鍋爐熱態(tài)變型將軟管拉開。關于聲導管上方有鋼梁的能夠依照環(huán)境要求改變聲導管安裝方法，膠管要求留必然裕度，用喉箍固定。（3）Inordertoinstallsofttubeconveniently,upper