BLD型鍋爐承壓管泄漏在線監(jiān)測(cè)系統(tǒng)運(yùn)行維護(hù)安裝維護(hù)中英文

1、印度古德洛爾2600MW燃煤電站項(xiàng)目專用印度古德洛爾2X600MW燃煤電站項(xiàng)目INDIACUDDALORE2600MWPOWERPROJECTBLD型鍋爐承壓管泄露在線監(jiān)測(cè)系統(tǒng)BLDOn-lineLeakageMonitoringSystemforPressurizedTubesinBoiler（安裝保護(hù)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(cuò)誤!不決義書簽。系統(tǒng)安裝SYSTEMINSTALLATION11.1安裝構(gòu)造INSTALLATIONSTRUCTURE11.2測(cè)點(diǎn)安裝INSTALLATIONOFOBSERVATIONPOINTS2聲導(dǎo)管構(gòu)造StructureofSoundMeatus3測(cè)點(diǎn)安裝地點(diǎn)InstalledLocationofobservationpoints4測(cè)點(diǎn)開孔方法TheMethodofBoringHole6聲導(dǎo)管安裝方法TheMethodofInstallingSoundMeatus9聲導(dǎo)管的保護(hù)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(hào)AuxiliarySignals151.5防腐清灰裝置CLEANINGDEVICE16安裝方案InstallationScheme16技術(shù)要求TechnicalRequest17技術(shù)規(guī)(僅供參照)TechnicalSpecification(ForReference)181.6軟件安裝INSTALLATION

4、OFSOFTWARE18系統(tǒng)調(diào)試SYSTEMDEBUGGING11.7調(diào)試準(zhǔn)備：PREPAREFORDEBUGGING:1調(diào)試條件ConditionofDebugging1開啟系統(tǒng)TurnontheSystem1防腐清灰系統(tǒng)風(fēng)量調(diào)整AdjustmentofCleaningSystem11.8初步伐試PRIMARYDEBUGGING2封閉報(bào)警CloseAlarm2調(diào)整總因子AdjustTotalFactor3調(diào)整流量因子AdjustFlowFactor4設(shè)定采樣間隔SetSamplingInterval51.9參數(shù)調(diào)試PARAMETERSDEBUGGING5自動(dòng)生成警界限Auto-generat

5、ionforAlarmLine5手動(dòng)調(diào)整警界上線ManualAdjustmentofUpperLimitofAlarmLine6手動(dòng)調(diào)整警界下線ManualAdjustmentofLowerLimitofAlarmLine8手動(dòng)調(diào)整基礎(chǔ)噪音ManualAdjustmentofBasicNoise8通道參數(shù)統(tǒng)調(diào)ChannelParametersCentralizedAdjustment91.10調(diào)試中的幾個(gè)問題SEVERALPROBLEMSINDEBUGGING10保護(hù)檢修參照MAINTENANCEANDREPAIRREFERENCE11.11監(jiān)測(cè)主機(jī)保護(hù)MONITORINGHOSTMAINTE

6、NANCE1前、后邊板說明ExplanationofFrontPanelandBackPanel1監(jiān)測(cè)主機(jī)部構(gòu)造Internalstructureofmonitoringhost3傳感器及引線TransducerandDown-lead41.12常有故障的辦理DEALWITHCOMMONFAILURES61.13器件型號(hào)說明THEEXPLAINOFTHETYPEOFDEVICE9附圖APPENDIXDRAWING11、監(jiān)測(cè)機(jī)柜構(gòu)造圖THESTRUCTUREOFMONITORINGCABINET12、盤電氣接線圖THEELECTRICCONNECTIONINPLATE23、監(jiān)測(cè)主機(jī)箱插件表MON

7、ITORINGHOSTPLUG-INTABLE34、單臺(tái)爐測(cè)點(diǎn)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(cè)系統(tǒng)，是一套專門為實(shí)時(shí)發(fā)現(xiàn)鍋爐“四管”泄露（漏）事故而設(shè)計(jì)的“計(jì)算機(jī)在線監(jiān)測(cè)系統(tǒng)”，該系統(tǒng)主要分為就地檢測(cè)部分和操作監(jiān)測(cè)部分。BLDTypeOn-lineLeakageMonitoringSystemforPressurizedTubesinBoiler,isa“on-linemonitoringcomputerwhich”isdesignedspecifi

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

9、olroomorelectronic-equipmentroom.1.1安裝構(gòu)造InstallationStructure整個(gè)系統(tǒng)的就地檢測(cè)部分包括測(cè)點(diǎn)聲導(dǎo)管、一體化傳感器、就地接線盒、就地信號(hào)電纜以及防腐清灰裝置等。操作監(jiān)測(cè)部分則包括工控計(jì)算機(jī)、彩色監(jiān)視器、監(jiān)測(cè)系統(tǒng)主機(jī)、彩色打印機(jī)以及系統(tǒng)監(jiān)測(cè)機(jī)柜等。Groundedmonitoringpartincludes:soundmeatusofobservationpoints,integratedtransducer,groundedjunctionbox,groundedsignalcableandanticorrosivecleaningde

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

11、nuo計(jì)uoS就o就r鍋爐rGG本體鍵盤、鼠標(biāo)協(xié)助信號(hào)AuxiliarySignalBoilerKeyboard,Mouse操作監(jiān)測(cè)部分就地監(jiān)測(cè)部分OperationMonitoringPartGroundedMonitoringPart圖1.1鍋爐泄露監(jiān)測(cè)系統(tǒng)安裝構(gòu)造框圖Figure1.1Monitoringsysteminstallationstructure鍋爐承壓管泄露在線監(jiān)測(cè)系統(tǒng)的全套設(shè)施為名貴儀器，在安裝搬運(yùn)過程中，應(yīng)盡量注意預(yù)防沖擊和振動(dòng)，免得系統(tǒng)設(shè)施產(chǎn)生破壞，造成不應(yīng)有的損失。Thewholeequipmentsofthemonitoringsystemareveryexpen

12、sive.Duringtransportandinstallation，concussionandshakeshouldbeavoided,soasnottodamagedandavoidunnecessarylosses整套設(shè)施應(yīng)使用一組獨(dú)自額定熱工供電電源，電壓240V1A，50HZ,該電源應(yīng)引入監(jiān)測(cè)機(jī)柜中的端子排上。Thewholeequipmentusesasingleratedthermalpowersupply;thespecificationis240Vand1A.50HZ.Thepowershouldbeplacedonterminalstripinmonitoringcabi

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

14、導(dǎo)管，其構(gòu)造見圖1.2和圖1.3。SoundMeatusisusedfortransmittingnoisesignalfromfurnacetotransducer.Usuallyitismadeofsteeltubewhichis?603.5mm.ItincludesJ-SoundmeatusandY-Soundmeatus,seefigure1.2andfigure1.3.（1）J型聲導(dǎo)管構(gòu)造StructureofJ-SoundmeatusJ型聲導(dǎo)管主要用于非水平煙道的測(cè)點(diǎn)，其構(gòu)造見圖1.2。圖中白鋼套的作用是向上搬動(dòng)露出開孔，經(jīng)過此孔清理聲導(dǎo)管前端的積灰或結(jié)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(dòng)白鋼套Steeltube870圖1.2J型聲導(dǎo)管構(gòu)造Figure1.2J-Soundmeatus（2）Y型

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

17、me,itiseasytopileupashinthefrontofsoundmeatus.為預(yù)防腐化和積灰，在水平煙道地區(qū)采用圖1.3Y型構(gòu)造聲導(dǎo)管。這種構(gòu)造聲導(dǎo)管有一個(gè)氣源入口，經(jīng)過它不斷的送入來自鍋爐送風(fēng)機(jī)出口的風(fēng)，用來抵消來自爐膛部的正壓，進(jìn)而起到防備傳感器結(jié)露造成的腐化，以及防備聲導(dǎo)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(dǎo)管構(gòu)造Figure1.3Y-Soundmeatus測(cè)點(diǎn)安裝地點(diǎn)InstalledLocationofobservationpoints聲導(dǎo)管

19、安裝地點(diǎn)由傳感器有效監(jiān)測(cè)半徑確定，原則為612m。部署傳感器的數(shù)量應(yīng)保證對(duì)全爐承壓受熱面泄露進(jìn)行有效的監(jiān)測(cè)，且監(jiān)測(cè)應(yīng)做到無盲區(qū)。Thelocationofsoundmeatusisdecidedbytheeffectiveradiusoftransducermonitoring,usuallyitis612m.Thenumberoftransducershouldensurethatallheatingsurfacesleakagecanbedetected,andensurethattheresnoblindspace.由于鍋爐型號(hào)的不同樣、構(gòu)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(cè)點(diǎn)地點(diǎn)和數(shù)量也不同樣，詳細(xì)地點(diǎn)應(yīng)依照鍋爐的詳細(xì)情況而設(shè)計(jì)，拜會(huì)測(cè)點(diǎn)地點(diǎn)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(cè)墻與頂棚聲導(dǎo)管安裝表示圖Figure1.4Theinstalledlocationofsoundmeatusonsidewallsandtop-roof測(cè)點(diǎn)部署應(yīng)依照以下原則：Principlesofinstallinglocationofobservationpointsshouldobservetheseprinciples：（1）傳感器有效監(jiān)測(cè)半徑為612m，預(yù)防監(jiān)測(cè)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(dǎo)管為仰角45O，見圖1.4；Y型聲導(dǎo)管為仰角30O。測(cè)點(diǎn)上部要留有足夠空間。2）InstalledangleofJ-soundmeatusisanelevationof45excepttop-room，seefigure1.4.InstalledangleofY-soundmeatusisanelevationof30.Enoughspaceshouldbekeptatupsideofobservationpoint.（3）測(cè)點(diǎn)地點(diǎn)要有走臺(tái)，以便于保護(hù)。（3）Platformshouldbelocatedneartheobservationpointformain

23、tenance.（4）測(cè)點(diǎn)確定應(yīng)避開吹灰器和有壓縮風(fēng)吹掃的其余測(cè)點(diǎn)。4）Observationpointshouldbekeptawayfromsootblowerandotherobservationpointswhichareblownbycompressionair.（5）水冷壁地區(qū)的測(cè)點(diǎn)應(yīng)盡量利用看火孔、人孔門或閑置不用的其余測(cè)點(diǎn)。5）Theobservationpointsnearthewater-cooledwallshouldmakeuseoffireholes,manholesorotherunusedobservationpoints.測(cè)點(diǎn)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(yīng)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(yù)防彎管開孔而破壞水冷壁的原構(gòu)造。Thelargecapacityboilerusuallyismembranetubewall;spacebetweenwater-cooledwallsistoosmall,sothetriangleareabovethesootblowinghole,fi

25、reholeandmanholeshouldbeusedasmuchaspossibleinordertoreducetheworkload;boringholeonsyphonshouldbeavoidinordertoprotectthestructureofwater-cooledwall.應(yīng)當(dāng)注意：正在應(yīng)用的吹灰器孔不能夠利用。Note:Thesootblowerholewhichisinusecannotbeutilized.聲導(dǎo)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(dǎo)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(dāng)水冷壁必定彎管開孔時(shí)，其詳細(xì)開孔方法可拜會(huì)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(cè)點(diǎn)沒有相應(yīng)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(gòu)造水冷壁在相鄰的鰭片上開兩條長(zhǎng)的矩形孔，寬度按鰭片實(shí)質(zhì)尺寸。利用方箱過渡進(jìn)行滿焊，再將聲導(dǎo)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(dòng)套筒Sleev

30、etubeBox方箱2mm圖1.7利用水冷壁鰭片開孔安裝聲導(dǎo)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(dǎo)管時(shí)一般不需彎管，只要將鰭片開孔即可。鰭片開孔時(shí)在保證過熱器安全的前提下，盡可能使其與聲導(dǎo)管口徑同樣，當(dāng)鰭片間距小于聲導(dǎo)管徑時(shí)，鰭片開孔為一橢圓孔，同時(shí)將聲導(dǎo)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(dǎo)管SoundmeatusFinnedhole焊接Jointing圖1.8利用包墻壁鰭片開孔安裝聲導(dǎo)管Figure1.8Themethodofboringholewhichismakinguseofsuper-heaterofenclosure-wall聲導(dǎo)管安裝方法TheMethodofInstallingSoundMeatus（1）側(cè)墻聲導(dǎo)管安裝方法：（1）Themethodofinstallin

33、gsoundmeatusonside-wall:側(cè)墻聲導(dǎo)管斜段長(zhǎng)度大于700mm，現(xiàn)場(chǎng)安裝確定實(shí)質(zhì)應(yīng)留長(zhǎng)度。Thelengthofbeveledgeofsoundmeatusonside-wallshouldbebiggerthan700mm;actuallengthisdecidedduringinstallation.聲導(dǎo)管的安裝原則應(yīng)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(dǎo)管時(shí)應(yīng)保證聲導(dǎo)管根部與水冷壁平齊，不同樣意聲導(dǎo)管伸入水冷壁側(cè)。Wheninstallingsoundmeatus,thehemlineofsoundmeatusandwater-cooledwallshouldbekeptatthesamelevel.Itisntallowedthatsoundmeatusisinsertedintowater-cooledwall.聲導(dǎo)管與包墻護(hù)板滿焊，固定可靠。全部側(cè)墻聲導(dǎo)管安裝時(shí)型聲導(dǎo)管與側(cè)墻呈45角

35、（仰角45，）Y型聲導(dǎo)管則仰角為30角，以預(yù)防運(yùn)行時(shí)積灰擁擠聲導(dǎo)管通道，影響正確報(bào)警。聲導(dǎo)管與側(cè)墻相對(duì)地點(diǎn)見圖1.4左圖。Soundmeatusandenclosure-wallarefullweld,fixedandcredible.AllangelsbetweenJ-soundmeatusandsidewallare45o(elevationsare45o),elevationanglebetweenY-soundmeatusandsidewallare30o,inordertoavoidashblockingsoundmeatusandaffectingaccuratealarm,see

36、figure1.4ontheleft.（2）側(cè)包墻聲導(dǎo)管安裝方法：（2）Themethodofinstallingsoundmeatusonside-enclosure-wall：側(cè)包墻過熱器聲導(dǎo)管安裝方法基本與圖1.4同樣，鰭片開孔為一橢圓孔，與護(hù)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(dǎo)管的安裝方法：（3）Themethodofinstallingsoundmeatusontop-roof：頂棚聲導(dǎo)管的前端直段應(yīng)依照保溫層厚度確定，見圖1.4右圖。保溫層外聲導(dǎo)管直段長(zhǎng)度不小于1000mm，能夠用同種類的鋼管延伸連結(jié)。Thefrontstraightpartofsoundmeatusontop-roofshouldbedecidedaccordingtothicknessofthermalinsulatinglayer,seerightfigure1.4.Thelengthofsoundmeatusouts

38、ideofthermalinsulatinglayershouldnbetlessthan1000mm,steeltubeofthesametypecanbeusedforextention.聲導(dǎo)管的保護(hù)MaintenanceofSoundMeatus運(yùn)行時(shí)期應(yīng)如期清理積灰及結(jié)焦，保證聲導(dǎo)管的暢達(dá)，當(dāng)計(jì)算機(jī)顯示聲導(dǎo)管堵灰信息時(shí)，應(yīng)實(shí)時(shí)翻開清灰孔檢查堵灰情況并進(jìn)行清灰辦理。Cleaningshouldbetakenperiodicallyduringoperationinordertoensurethatsoundmeatussareexpedited.Whencomputerdisplayst

39、heinformationofashblockage,shouldopenhole,checkashblockingandcleaningshouldbetakenassoonaspossible.鍋爐大小修時(shí)期應(yīng)檢查聲導(dǎo)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(gè)帶有法蘭盤的柱體。安裝時(shí)，將傳感器的法蘭盤與聲導(dǎo)管的法蘭盤瞄準(zhǔn)，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(shí)，先擰下航空插頭，再卸掉四個(gè)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(yīng)嚴(yán)格預(yù)防振動(dòng)，更不能夠用任何物品敲打，以預(yù)防造成不應(yīng)有的損失。Transducerisexpensive,shakingorbeatingshouldbeavoidedtopreventloss.1.3電纜安裝Installationofcable就地部分的安裝除聲導(dǎo)管和傳感器以外，還包括電纜敷設(shè)、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(gè)，采用20線左右的熱工信號(hào)端子箱。Thenumberofjunctionboxesusuallyis4,usingthermalsignaljunctionboxwithabout20threads.端子箱的地點(diǎn)一般應(yīng)湊近所要接入的全部測(cè)點(diǎn)，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(cè)適合地點(diǎn)各放一個(gè)，在尾部煙道測(cè)點(diǎn)周邊放置一個(gè)，在水平煙道處放置一個(gè)。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(cè)點(diǎn)就近分別引入甲、乙兩側(cè)的接線盒和尾部煙道處的接線盒，甲、乙兩測(cè)的接線盒地點(diǎn)應(yīng)相對(duì)提高。Iftheboileris670torsmaller,junctionboxoflevelfluecanbesp

45、ared,butthejunctionboxesatfirstandsecondsidesoftheboilershouldbeheightened.電纜及接線CableandConnection本系統(tǒng)現(xiàn)場(chǎng)由接線盒到傳感器的電纜采用ZRKVVP41.0的電纜，實(shí)質(zhì)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(gè)數(shù)21芯公共線+1芯備用。其接線方法可參照?qǐng)D1.10。（注意：為了檢修方便公共線以不高出個(gè)測(cè)點(diǎn)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(hào)o號(hào)o號(hào)oNNN1t2t3t

48、ccc.eee接n接n接nnnnoooCCCxob盒n123456789.o接cnuJrecud器sn感art傳N.號(hào)oNtNce接nnoC去盤內(nèi)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(jī)柜的監(jiān)測(cè)系統(tǒng)，設(shè)施安裝構(gòu)造見附錄機(jī)柜構(gòu)造圖。如不采用本系統(tǒng)專用機(jī)柜則計(jì)算機(jī)主機(jī)與彩色督查器、計(jì)算機(jī)鍵盤間應(yīng)就近放置，主機(jī)將有24條電纜接入泄露監(jiān)測(cè)端子排上。一

49、般情況下計(jì)算機(jī)主機(jī)在泄露監(jiān)測(cè)主機(jī)上方，這樣便于電纜的連結(jié)。以上電纜均由廠家向用戶供應(yīng)。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(dòng)白鋼套套注：接線盒至系統(tǒng)監(jiān)測(cè)機(jī)柜內(nèi)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(cè)監(jiān)接線盒機(jī)計(jì)柜測(cè)打XC算內(nèi)主印接線盒機(jī)端機(jī)機(jī)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(hào)AuxiliarySignals協(xié)助信號(hào)和就地的監(jiān)測(cè)信號(hào)均應(yīng)接入相應(yīng)表盤的盤端子排上，爾后，用截面為0.5mm左右的軟導(dǎo)線接入泄露監(jiān)測(cè)主機(jī)的插件上。泄露監(jiān)測(cè)系統(tǒng)對(duì)協(xié)助信號(hào)的要求以下表所示。Auxilia

52、rysignalsandgroundedmonitoringsignalsshouldconnectwithappropriateterminalsofdialplate,thenconnectedtoplug-inofmonitorbyflexiblecircuitconductorwhosesectionis0.5mm.Therequestfortheauxiliarysignalsareasfollows:序號(hào)名稱數(shù)量規(guī)格連結(jié)設(shè)施用途或根源numberNameAmountSpecConnectequipmentUseororigin開關(guān)量輸出對(duì)常開（240V5A）光字排或報(bào)警器熱工信號(hào)、

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

54、wingcontact（Passive）4模擬量輸入對(duì)420流量變送器主蒸汽流量Analoginput1pair420FlowtransducerMainsteamflow5網(wǎng)線對(duì)計(jì)算機(jī)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(huì)出現(xiàn)正壓情況，爐正壓易使聲導(dǎo)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(duì)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(jìn)而加劇了聲導(dǎo)管的堵灰，為解決這一問題，我們?cè)O(shè)計(jì)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(gè)測(cè)點(diǎn)通風(fēng)聲導(dǎo)管的組合連結(jié)方法見圖1.12。Theconnectionofsingleobservationpointofventilatedsoundmeatus,seefigure1.12.?89風(fēng)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(zhǎng)）?60spurtrackextendedtube(couldbeextended)600（指兩金屬管間距離）Y型聲導(dǎo)管軟管與金屬短接以螺紋Y-soundmeatus球閥形式連結(jié)metalhasBallvalve300Softtubewithscrewthreadconnection圖1.12Y型聲導(dǎo)管與風(fēng)源母管道連結(jié)表示圖Figure1.12Y-soundmeatusconnectswithairsourcemaintube來自送風(fēng)機(jī)出口的風(fēng)經(jīng)過風(fēng)源母管向水平煙道地區(qū)的清灰聲導(dǎo)管連續(xù)通入空氣，抵消鍋爐正壓，其整體連結(jié)方式參看圖1.13。Theairf

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

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

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