儀表施工方案方案

InstrumentConstructionPlan 第三章：儀表實物工作量CHAPTER3-INSTRUMENTQUANTITY第四章：施工的主要程序CHAPTER4-MAINCONSTRUCTION第五章：主要施工方法和技術(shù)要求CHAPTER5-CONSTRUCTIONTECHNICALREQUIRESANDQUALITYSTANDARD7第六章：質(zhì)量控制和檢、試驗計劃CHAPTER6-QUALITYCONTROLANDINSPECTIONTESTPLAN 29 第八章：勞動力組織CHAPTER8-LABORORGANIZATION…...34SCHEDULE……………..35HACHAPTERFIVESAFETY第一章：工程概況Chapter1-General本工程為斯泰潘(南京)化學(xué)有限公司新建5萬噸/年聚酯多元醇項目，工程范圍主要包括：行政辦公和電控樓，空壓站、門衛(wèi)和稱重，焚燒爐，冷卻水系統(tǒng)，消防泵房，事故水池，工藝裝置區(qū)，倉儲區(qū)等。ThisisanexpansionprojectofBASF-YPCCompanyLimited,themanagementteamisIET,TARworkinvolvedinarea1mainlyincludesexistinginstrumentexchanges,remove,andresetting,newinstrumentinstallation,cabletraylayingandcablepulling.儀表種類主要有：控制閥、開關(guān)閥、流量計、差壓變送器、壓力變送器、溫度變送器、、分析儀表、氣體檢測儀等儀表。Variousinstrumentscoveredlikecontrolvalve,on-offvalve,integratedflowmeter,DPtransmitter,pressureandtemperaturetransmitter,forkliquidlevelswitchandtoxicgasdetector.第二章：編制依據(jù)Chapter2-Reference招標文件《自動化儀表工程施工及質(zhì)量驗收規(guī)范》GB50093-2013Chineseinstrumentconstructionworkcode.《石油化工儀表工程施工技術(shù)規(guī)程》SH3521-2007Petrochemicalinstrumentconstructionworkcode.《電氣裝置安裝工程爆炸和火災(zāi)危險環(huán)境施工及驗收規(guī)范》GB50257-96《建筑工程施工現(xiàn)場供用電安全規(guī)范》(GB50194-93)；PowerSupplyandUtilitySafetyRegulationsonConstructionEngineeringSiteGB50194-93《建設(shè)工程安全管理條例》第三章：儀表實物工作量Chapter3-Instrumentquantityofwork位數(shù)量名稱位量溫度儀表臺6調(diào)節(jié)閥臺壓力變送器臺24過程開關(guān)臺差壓變送器臺2分析儀表臺5差壓液位變送器臺15有毒氣體檢測儀臺2液位儀表臺米流量儀表臺橋架米開關(guān)閥臺51儀表管路米第四章：施工的主要程序Chapter4-Mainconstructionprocedure施工前準備preparationioneinstallationeinstallationveclosedveclosedldtrumentguideressuregleaktestingng工驗收1)組織施工有關(guān)人員進行交底，充分做好施工圖會審工作，及時解決圖紙中發(fā)現(xiàn)的問題，從而為施工階段爭取時間。OrganizetechnicalclarificationandDWGreview,problemsexistinginDWGsshallbequicklysolvedtogainmoretimeforTAR.2)根據(jù)設(shè)計圖和有關(guān)資料編制好設(shè)備材料表和有關(guān)施工資料，熟悉設(shè)計的規(guī)范、標準、設(shè)計圖紙以及有關(guān)的操作說明等資料。PreparemateriallistandrelatedconstructiondocumentsasperdesignedDWGandrelativedocuments.Befamiliarwithcodes,standards,DWGsandguidelines.withconstructionrelateddocumentsandDWGs,beclearwithexistinginstrumentphilosophyandjunctionboxlocation.4)對施工班、組進行全面系統(tǒng)的技術(shù)交底，上崗人員能熟悉圖紙，明確施工任務(wù)和施工要點，規(guī)范及特殊要求。Technicalclarificationtoconstructionteamshallbecompleteandsystematic,makesureconstructionpersonnelarefamiliarwitDWGs,workcontentandrequirements.5)及時了解設(shè)備、材料到貨情況，設(shè)備到貨時，一定要根據(jù)廠家提供的裝箱單、技術(shù)資料，會同業(yè)主、監(jiān)理單位開箱檢驗，核實儀表設(shè)備材料的規(guī)格，型號及數(shù)量是否符合設(shè)計要求，并做好記錄，并在干燥清潔的條件下妥善保管。Beclearwithmaterialandequipmentstatus,open-boxinspectionjointlywithIETandBYCasperpackinglistandtechnicaldocumentsprovidedbymanufacturer,checkifequipmentandmaterialspecification,typeandquantityaresatisfied,andrecordmade,allequipmentsandmaterialsreceivedshallbewellkept.6)準備好干燥清潔的房間，作為調(diào)校室，環(huán)境應(yīng)符合要求。班組要檢查機具是否完好，檢驗期是否有效，校驗儀表的等級是否符合要求。Acleanroomwillbepreparedtobeascalibrationroomwhichshallcomplywithenvironmentalrequirements.Machinesandtoolsshallbecheckedwithcompletenessandexpiresbythegroupandinstrumentshallbecheckedwithitsgrades.7)施工機具的準備。Preparationonconstructionmachinesandtools(1)根據(jù)圖紙及工作量準備各種施工工具；PreparevariousconstructionmachinesandtoolsasperDWGandworkquantity.(2)現(xiàn)場嚴禁使用活動扳手，需要按照儀表規(guī)格書、安裝圖、管道ISOMETRICS圖準備evesandopen-endwrenchshallbepreparedasperthespecificationprovidedinspecification,hook-ups,andpipeisometrics.1)儀表安裝受裝置作業(yè)、工藝設(shè)備、工藝管道、土建等專業(yè)的現(xiàn)場條件限制，不宜提前進行，但一些安裝可在前期完成或部分完成。如：SiteconditionslimitadvanceconstructionofTARinstrumenterectionconsideringplantoperation,processequipment&piping,civil,however,someinstallationcanbefinishedatpre-TARorpartiallyfinished.(1)儀表單體調(diào)校，閥門強度試驗。Instrumentunitcalibration,valvestrengthtest.(3)部分主橋架安裝。Partialmaincabletrayerection(D477ipiperackreplacement,D472ipiperackpartialcabletrayerection,D473ipiperackcabletray)ion(5)盤柜基礎(chǔ)預(yù)制Cabinetfoundationfabricationtfabrication(7)接線箱、氣源分配器安裝。Erectionofjunctionboxandairdistributor.MiddlestageofTAR在工藝設(shè)備、管道安裝陸續(xù)完成，整個工作已初步明朗，儀表安裝進入施工高潮，這段equipmentandpipingerectionhasbeenfinished,instrumenterectionentersintoclimax;tighttime,heavytaskandmulti-tradescrossingrequiresadetailedandstrictschedule.stime1)分支橋架(接線箱至儀表)、氣源管線敷設(shè)(氣源分配器至氣動閥門)。Branchcabletraylaying(fromjunctionboxtoinstrument),airdistributorwirepulling(fromairdistributortopneumaticvalve)2)電纜敷設(shè)。Branchcablepulling(fromjunctionboxtoinstrument)ontest,wiringcalibration.LatestageofTAR在所有安裝工作結(jié)束后，要對整個安裝工程進行“三查四定”和系統(tǒng)聯(lián)校、儀表投運工作，此項工作必須會同業(yè)主和監(jiān)理等有關(guān)人員，根據(jù)施工驗收規(guī)范要求，對整個儀表施工全面檢查，記下不合格點，并逐個給予解決，最終辦理交付驗收工作。Whenallinstallationworkfinished,workoutpunchlistandcleanallitemsremained,thenconductsystemcalibrationandinstrumentcommissioningjointlywithIETandBYCrelatedpersonnel.Afullinspectionisrequiredtofindoutnon-conformancesandsolveonebyone.IET,BYC,MAV1andsupervisionunitshallbeinvolvedinsystemloopcalibrationandmakedecisions,finally,acceptanceworkwillbeperformed.technicalrequiresandqualitystandard.1)盤柜到現(xiàn)場后，為避免設(shè)備損壞，要盡量減少搬運次數(shù)。Cabinetarrivesatthescene,inordertoavoiddamagetotheequipment,tominimizehandlingtimes.時有庫管、廠家、及監(jiān)理等相關(guān)人員在場，對于明顯的設(shè)備缺陷，作好記錄并報有關(guān)人員。Whentheequipmentisinstalledoutoftheboxnearthelocationofthebox,nottothediskasafulcrumwhenusingacrowbar,soasnottodamagethediskenclosure.ThereKuguan,manufacturers,andsupervisionandotherrelatedpersonnelpresentduringtheunpackingofequipmentforobviousdefects,makerecordsandreporttotherelevantpersonnel.設(shè)備及人身安全。由于盤體較重，要用力平穩(wěn)、一致。不允許劇烈振動和撞擊。盤到位后，bypressingtheSetupicontechniciangoodoutoftheboxtheorder,shippedtothebaseaftertheunpackingprocesstoensurethatequipmentandpersonalsafety.Duetoheavyplatebody,toforceasmoothandconsistent.Donotallowexcessivevibrationandshock.Afterthediscinplace,butalsocarefullycheckthemodeliscorrect,parts,missingparts,damagedpartsaftercheckingmakearecord.4)盤柜找平、找正時，先精確的找好第一塊，再以第一塊為基準，將其它依次調(diào)整找平、找正。Enclosureleveling,alignment,firstthefirstonetofindagoodaccurate,thenthefirstoneasareference,theotherinordertoadjusttheleveling,alignment.5)同一系列規(guī)格相鄰兩盤、柜、臺的頂部高度允許偏差為2mmm;Inthesameseriesspecificationsoftwoadjacentplates,cabinets,tabletopheighttolerancefor2mmmjunctionofthesameseriesspecificationscubicle,deskbetweenmorethantwo,topheighttoleranceof5mm;frontdeskseamsflatnesstoleranceof1mm;8)當盤、柜、臺問的連接處超過5處時，正面的平面度允許偏差為5mm；Whenthedisc,connectioncabinets,deskandaskedthemorethan5,thefrontoftheflatnesstoleranceof5mm;9)相鄰兩盤、柜、臺之間的接縫的間隙，不大于2mm。Twoadjacentcubicle,thegapbetweentheseamsofthestation,nomorethan2mm.ngofjunctionboxesshallbeinstalledatgradeorontheplatform.Locationofjunctionboxeswillgenerallybedecidedbyconsideringoperability,easeofmaintenance.2)接線箱應(yīng)根據(jù)施工圖進行安裝。Junctionboxesshallbeinstalledinaccordancewithconstructiondrawingsand/orinstructionbyBYC’ssupervisor.3)當不在接線箱內(nèi)工作時，所有的接線箱蓋板必須完全關(guān)閉。3.儀表支架instrumentsupportndothersupportsshallbefabricatedandinstalledinaccordancewithapproveddrawings.2)在制作完成后，立柱和支架應(yīng)立即進行表面處理并刷底漆。Surfacepreparationandprimercoatingshallbeappliedforallstanchionsandsupportsimmediatelyaftercompletionoffabrication.3)在鋼結(jié)構(gòu)進行防火處理前，應(yīng)將支架安裝到結(jié)構(gòu)件上。Whenasupportisattachedtoastructuralmember,theworkshallbecarriedoutbeforefireproofingofthemember4)儀表立柱為2寸鍍鋅鋼管。Theinstrumentstanchionsshallbeof2inchsteelpipeasarule.4.基礎(chǔ)槽鋼的安裝foundationchannelsteelfabricationandinstallation在設(shè)備安裝前，基礎(chǔ)槽鋼應(yīng)水平地固定到地面上。基礎(chǔ)型鋼應(yīng)平直并固定良好。基礎(chǔ)的尺寸應(yīng)與設(shè)備底座一致。其水平度的允許誤差為1mm/m。當基礎(chǔ)底座的長度大于5m時，全長允許誤差為5mm。Priortoinstallationofequipment,thechannelbaseshallbefastenedtothefloorhorizontally.Theprofiledsteelsofthefoundationsshouldbestraightandwellfixed.Theirsizesshouldcomplywithequipmentbases.Theallowableerrorforlinearityshallbe1mm/m.Incasethelengthofthebottomseatofsectionalsteelis＞5m,theallowableerrorinfulllengthshallbe5mm.strumentinstallation(1)儀表的中心距操作地面的高度宜為1.2m-1.5m之間；theelevationofthecenterofinstrumentshouldbe1.2m(2)顯示儀表應(yīng)安裝在便于觀察示值的位置；installindicativemeteratpositioneasytoread.(3)儀表不應(yīng)安裝在有振動、潮濕、易受機械損傷、有強電磁場干擾、高溫、溫度變化和有腐蝕性氣體的位置；instrumentshouldnotbeinstalledinpositionsofvibration,humidity,easybedamagedbymachine,strongmagneticdisturbance,hightemperature,sharptemperaturechangeandcorrosiongas.(4)安裝過程中不應(yīng)敲擊、震動儀表。儀表安裝后應(yīng)牢固、平正。儀表與設(shè)備、管道或構(gòu)件的連接及固定部位應(yīng)受力均勻，不應(yīng)承受非正常的外力。Noknockingandvibratinginstrumentduringinstallation.Installedinstrumentshouldbefirmandeven.Thestressattheconnectionjointsandfixedpositionbetweeninstrumentandequipment,pipeandstructureshouldbesymmertrical,noabnormalstressfromoutside.(5)儀表設(shè)備的安裝位置、連接型式、方向、標高原則上按照施工圖進行,安裝的細節(jié)和使用方法按照說明書的要求進行。Principally,theinstallationposition,connectiontype,orientationandelevationofinstrumentshouldbeinaccordancewithconstructiondrawing,detailsandusagemethodsreferringtospecifications.不宜安裝在震動、潮濕、高溫、宜受機械損傷、強磁場干擾、腐蝕性強的地方。Instrument,uptotherequirementsofmeasurementprecisionandcontrolsensitivity,shouldbeinstalledinlocationconvenientforoperation,maintenanceandobservation.Theyshallnotbeinstalledinapositionofvariation,humidity,hightemperature,easytobemechanicallydamaged,strongmagneticfielddisturbanceandstrongcausticity.(7)儀表設(shè)備的進線引入孔不應(yīng)朝上,以避免油水、灰塵進入接線端處。Theintakeholeofinstrumentshouldnotbeupwardtoavoidoil,wateranddustfromenteringintoconnectionjoint.(8)直接安裝在工藝管道間的控制閥、流量計、一次元件等，應(yīng)在工藝管道吹掃完畢后進行安裝。Fieldthermometer,pressuremeterandtestinginstrumentwillbeinstalledasperstandardDWG.Controlvalves,flowmetersandinlineinstrumentsinstalleddirectlyintheprocesspipingshallonlybeinstalledafterpipingblowingandflushing.(9)在安裝完成后，儀表及其附件應(yīng)進行適當?shù)谋Ｗo，防止因其它施工引起儀表及附件accessoriesshallbesuitablyprotectedbyabag,weatherprooforfire-resistantsheeting,etc.againstpossibledamageorcontaminationcausedbyotherconstructionworks.2)溫度檢測儀表的主要安裝要求：Installationrequirementsoftemperaturemeasureinstrument:(1)接觸式溫度檢測儀表的測溫元件應(yīng)安裝在能準確反映被測對象溫度的地方。Thetemperaturedeviceoftouchtemperaturemeasureinstrumentshouldbeinstalledinthelocationwherecanaccuratelyreflectthetemperatureofobject.保溫的設(shè)備或管道上時，一直到溫度計套管的螺紋連接件處都要進行保溫。Incaseofinstallingtoheatinsulatedequipmentorpiping,insulationshallbeprovideduptothethreadportionofthermowell.3)壓力檢測儀表安裝的主要要求：InstallationofPressureGauge(1)對于測量潮濕氣體、水平敷設(shè)的較長的導(dǎo)壓管，安裝坡度應(yīng)大于1/10，并應(yīng)敷設(shè)在無振動的位置。Longhorizontaltubingforwettedgasserviceshallhavegradientmorethan1/10.Andselectthegoodpositionwithoutvibration.(2)如果壓力表遠離取樣點，應(yīng)確認取樣點和壓力計之間的差壓。Differenceofpressurebetweentappingpointandpressuregaugeshallbeconfirmedifthelocationisfarfromtappingpoint.mayberequiredforthedifferenceofthegaugeforgeneral,forammonia,foroxygenandforoilprohibited.(4)當被測介質(zhì)壓力波動較大時，應(yīng)采取緩沖措施。Bufferingmeasuresshouldbetakenwhenthetargetmediaaresubjecttomajorpressurefluctuation.(5)在安裝完成后，應(yīng)關(guān)緊切斷閥。Afterinstallation,take-offvalvesshallbeclosedtightly.4)差壓變送器的安裝Installationofdifferentialtypetransmittersteam,sealpotshouldbeprovided.Thesealpotshallbeatthesameelevation.(2)導(dǎo)壓管應(yīng)盡可能短。測量液位或壓力的變送器的安裝位置應(yīng)盡可能靠近取壓管嘴，避免因為產(chǎn)品本身特性而產(chǎn)生不必要的聚合和結(jié)晶的危險。Pressureleadtubingshallbeprovidedasshortaspossible.Transmittersforlevelorpressureshouldbeinstalledascloseaspossibletothenozzleinordertoavoidunnecessaryriskofpolymerizationorcrystallization,dependingontheproduct.(3)正負壓的導(dǎo)壓管應(yīng)盡可能的平行安裝，并應(yīng)安裝在環(huán)境溫度相同的地方，固定支架的間距應(yīng)小于2m。Pressureleadtubingisinstalledinparallelasmuchaspossibleandshallhavethesameenvironmentaltemperature.Supportshallbefixedtosupportingstructurelessthan2metersspan.5)流量檢測儀表的主要安裝要求：sofflowmeasureinstrument(1)節(jié)流件的安裝應(yīng)符合下列要求：Installationofthrottlepieceshouldmeetthefollowingrequirements.安裝前應(yīng)進行外觀檢查，孔板的入口邊緣應(yīng)無毛刺、圓角和可見損傷；Surfacecheckpriortoinstallation,noburr,roundangleandvisibledamageintheexitofspraymouthandentranceoforificeplate.節(jié)流件必須在管道吹掃后安裝；Installthrottlepieceafterpipingblowing節(jié)流件的安裝方向，必須使流體從節(jié)流件的上游端面流向節(jié)流件下游端面?？装宓匿J邊或噴嘴的曲面?zhèn)葢?yīng)迎著被測流體的流向；theinstallationorientationofthrottlemustensureliquidflowfromtheupstreamofthrottletothedownstream.Thecurvesurfaceofshapemarginorspraymouthshouldfacetheflowrouteofobjectedliquid節(jié)流件的端面應(yīng)垂直于管道軸線，其允許偏差為10；Thesurfaceofthrottleshouldplumbwithpipingaxis,withallowabledeviationof10在水平和傾斜的管道上安裝的孔板或噴嘴，若有排泄孔時，排泄孔的位置為：當流體為液體時應(yīng)在管道的正上方，當流體為氣體或蒸汽時應(yīng)在管道的正下方。Fororificeplateorspraymouthinstalledonlevelordecliningpiping,itsdrainagehole,ifhave,shouldbepositionedas:theoppositeupsideofpipingiftheflowisliquid,andtheoppositedownsideiftheflowisgasorsteam.流體流向必須自下而上，上游直管段長度不宜小于5倍管直徑；Rotorflowmetershouldbeinstalledonnon-vibratingpiping,withtheanglebetweenitscenterlineandplumblinenomorethan20.Thedirectionofobjectiveflowmustbefromtheuppertodown.Andthelengthofstraightpipingattheupstreamshouldbenolessthan5timesofpipingdiameter.(3)渦街流量計信號線應(yīng)使用屏蔽線，上、下游直管段的長度應(yīng)符合設(shè)計要求，放大器與流量計分開安裝時，兩者的間的距離不應(yīng)超過20M；Thesignallineofturbineflowmetershouldbescreenline,andthelengthofstraightpipingatupstreamanddownstreamshouldmeetdesignrequirement.Thedistancebetweenamplifierandflowmeter,ifinstalledseparated,shouldbenomorethan20M.(4)電磁流量計的安裝應(yīng)符合下列規(guī)定：Theinstallationofelectromagneticflowmetershouldmeetthefollowingrequirements:流量計外殼、被測流體和管道連接法蘭三者之間應(yīng)做等電位連接，并應(yīng)接地；Theoutershellofflowmeter,objectflowandconnectiveflangeofpipingshouldconnectwithpotentialvoltageandgrounding.在垂直的管道上安裝時，被測流體的流向應(yīng)自下而上，在水平的管道上安裝時，兩個測量電極不應(yīng)在管道的正下方和正上方位置；Wheninstalledonverticalpiping,theobjectliquidshouldflowdowntoup,whileinstalledonhorizontalpiping,twomeasureelectrodesshouldnotbelocatedattheoppositedownanduppiping.流量計上游直管段長度和安裝支撐方式應(yīng)符合設(shè)計要求。Thelengthofstraightpipingattheupstreamofflowandthetypeofinstallationandsupportshouldmeetdesignrequirement.于垂直平面內(nèi)。橢圓齒輪流量計和腰輪流量計在垂直管道上安裝時，管道內(nèi)流體流向應(yīng)自下而上；Thegearflowmetershouldbeinverticalplane.Wheninstallinggearflowmeterandwaistflowmeteronverticalpiping,liquidinsidepipingshouldflowuptodown(6)超聲波流量計上、下游直管段應(yīng)符合設(shè)計要求，對于水平管道，換能器的位置應(yīng)在與水平直徑成450夾角的范圍內(nèi)。被測管道內(nèi)壁不應(yīng)有影響測量精度的結(jié)垢層或涂層；Straightpipingattheupstreamanddownstreamofultrasonicflowmetershouldmeetdesignrequirement.Forhorizontalpiping,thelocationofenergyexchangershouldbeinthescopeofangleof450.Nofilthyorcoatinsideobjectpipingthatimpactsmeasureprecision.矩形流量管、U型流量管應(yīng)處于垂直平面內(nèi)。工藝介質(zhì)為氣體時，流量管應(yīng)處于工藝管道的上方；工藝介質(zhì)為液體時，流量管應(yīng)處于工藝管道的下方。Theflowmetersshouldbeinstalledaccordingtoinstallationinstructionofmanufacturer,withtherectangularboxpipesandU-shapedboxpipesintheverticalplane.Whentheprocessmediaaregases,theboxpipesshouldbeinstalledabovetheprocesspipes,andwhentheprocessmediaareliquid,theboxpipesshouldbeinstalledbelowtheprocesspipes.6)物位檢測儀表的主要安裝要求：Maininstallationrequirementsofliquidlevelinstrument:用差壓計或差壓變送器測量液位時，儀表安裝高度不應(yīng)高于下部取壓口；但是吹氣法及利用低沸點液體汽化傳遞壓力的方法測量液位時，不受此規(guī)定限制；WhenmeasurelevelwithdifferentialpressuremeterorDPtransmitter,theinstallationelevationofinstrumentshouldnotmorethandownpressuretap;buttheelevationisnotinthelimitifmeasurelevelbythemethodofblowingorpressuretransmissionoflow-boilingliquidblowoff.7)控制閥的安裝Installationofcontrolvalves(1)控制閥上下游直管段的長度應(yīng)大于150mm或等于工藝管道的直徑。Straightpipelongerthan150mmorequaltopipediametershallbeprovidedatbothupstreamanddownstreamofvalve.(2)控制閥的閥桿應(yīng)盡可能地垂直安裝，只有蝶閥的轉(zhuǎn)軸應(yīng)水平安裝。Stemshallbeinstalledverticallyifpossible.Onlyrotatingshaftofbutterflyvalvewillbeinstalledhorizontally.(3)閥門的安裝位置應(yīng)便于操作和維護。Valveshallbeinstalledconsideringoperability.(4)如果控制閥太重，閥門上下游的工藝管道應(yīng)加以支撐。Pipingaroundcontrolvalveshallbesupportedifcontrolvalveisveryheavy.8)毛細管的安裝Installationofcapillarytube(1)毛細管敷設(shè)時應(yīng)采取適當?shù)谋Ｗo措施，在需要支架的地方應(yīng)支撐牢固。Goodcareshallbetakentohavethecapillarytubesproperlyandfirmlysupported,whereversuchsupportingisrequired.(2)應(yīng)避免毛細管過度彎曲，防止毛細管阻塞。Excessivebendingofthecapillarytubesmustbeavoidedtopreventclogging.(3)由于熱膨脹或容器、罐或其它設(shè)備的運轉(zhuǎn)，使毛細管承受過度應(yīng)力，安裝時應(yīng)考慮適當?shù)墓苈费a償。Incasewhereexcessivestressesofforcesareexpectedatthecapillarytubeasresultofthermalexpansionormovementofvessel,columnorotherfacilities,propertubinginstallationshallbedesignedandperformed.9.InstallationofToxicGasDetector分析儀表的安裝(1)分析儀表的安裝位置應(yīng)嚴格根據(jù)施工圖紙所給出的位置定位。InstallationpositionoftoxicgasdetectorwillstrictlycomplywithIFCDWG.(2)安裝時必須嚴格按照產(chǎn)品說明書規(guī)定，進行安裝；Productinstructionwillbecompliancewith.(3)分析取樣系統(tǒng)應(yīng)按設(shè)計要求安裝，應(yīng)有完整的取樣預(yù)處理裝置，預(yù)處理裝置應(yīng)單獨安Installanalyzersamplingsysteminaccordancewithdesignrequirement,completesamplingpre-treatmentapparatuswhichshouldbeindividuallyinstalled,nearconveyingmachine.(4)被分析樣品的排放管應(yīng)直接與排放總管連接，總管應(yīng)引至室外安全場所，其集液處應(yīng)Thedrainpipeofanalyzersamplingshouldbedirectlyconnectedwithdrainheaderwhichleadstosafetyplaceofoutdoors.Drainapparatusisrequiredatliquidcollectionlocation.abletraygassourcepipeandcablepulling(1)主橋架、分支橋架、導(dǎo)壓管、電纜等線路敷設(shè)應(yīng)避開高溫、強磁、有受機械損傷危險和介質(zhì)泄漏的地方。在設(shè)備和工藝管線上安裝導(dǎo)壓管時，應(yīng)為保溫留下足夠的空間。Maincabletray,branchcabletray,impulsepipeandcablepullingwillavoidplaceswithhightemperature,highpoweredmagnetic,mechanicaldamageriskandmediumleakage.Impulsepipewillbeinstalledinequipmentsandprocesspipelinewithsufficientspace.(2)沿支托架固定，其敷設(shè)必須橫平豎直、固定牢固。彎頭及中間接頭處應(yīng)平滑，不能有銳角、毛刺。配管應(yīng)減少彎曲和交叉，不得有急劇和復(fù)雜的彎曲，應(yīng)排列整齊，支架間距應(yīng)均勻，符合規(guī)定。Fixthemupalongbracketstomakesuretheyarestraightandsteady.Elbowsandinter-tie-inswillbesmoothwithoutanyedgesandburrs.Bendingandcrossingwillbereducedwhendistributetubes.Suddenandcomplexbendingisnotallowed.Thetubeswillbearrangedneatlywithevenspace.(3)管路采用機械彎曲，彎管不能彎扁，不能有裂紋。其管切割采用機械切割，切口處應(yīng)打磨好，不能卷邊或有毛刺。Mechanicalbendingwillbeusedforpiping.Andthebendedpipewillbefreefromflatandcracks.Mechanicalcuttingwillbeadopt,andtheportofcuttingwillbegriddedwithoutanyedgerolledorburrs.2)橋架安裝cabletrayinstallation工圖施工，不得自行改動其走向、標高。StrictlycomplywithIFCDWG,anychangeswithoutapprovalisprohibited.filed.Anytwistordistortionisnotallowed.willbesmoothwithoutanyburr,sharpedgesandarris.(4)電纜敷設(shè)工作完成后，橋架內(nèi)應(yīng)清理干凈，蓋板固定牢固。每一塊橋架蓋板的兩端應(yīng)采用不銹鋼綁扎帶進行固定。Aftercablepulling,cleanupcabletrayandfix-upcovers.Bothendsofcabletraycoverwillbeboundbybindingbelts.(5)橋架或支撐的防護層，因焊接工作或其它施工遭損壞后，應(yīng)盡快對其進行修復(fù)和防腐處理。Whencoatingoftrays,ductsorsupportsisdamagedeitherbyweldingorotherconstructionwork,theportionshallberepairedtopreventcorrosionassoonaspossible.(6)橋架的支撐間隔不得超過2m。Traysorductsshallbesupportedatintervalsnotexceeding2m.(7)電纜直接從橋架中引出，應(yīng)在與電纜直接接觸的橋架邊沿上增加橋架護邊，以保護電纜不受損傷,在橋架終端和橋架切割口的邊沿必須要用橋架護邊進行保護，避免損壞電纜外層。Thedrawing-outofcablesfromtrays/ductsshallbemadethroughrubberbushingsprovidedonthesidewalloftrays/ducts.Theendandsharpcuttingedgeofcabletraymustbeprotectedwithrubberbushingstoavoidinjuringthecables.3)電纜敷設(shè)Cablepulling(1)電纜敷設(shè)前應(yīng)做好外觀檢查和導(dǎo)通絕緣電阻測試，并用500V兆歐表測量絕緣電阻，MQ以上。Visualinspectionandinsulatedresistancetestwillbedonebeforecablepulling.Insulatedresistanceshallbemeasuredby500VMQandtheresultshallbemorethan10MQ.(2)電纜在橋架內(nèi)敷設(shè)時，不得有拉伸應(yīng)力，防止機械損傷。在敷設(shè)路徑中，要配備足夠數(shù)量的人員，防止由于拖拉、摩擦和其它疏忽引起電纜和導(dǎo)線的損傷。Anytensionstressisnotallowedwhenpullingcablestopreventmechanicaldamage.Sufficientworkerswillbeonsitetopreventcablesandleadsdamagefrompulling,frictionetc.(3)交流230V50Hz(及更高電壓)的供電電纜、信號電纜或電線不應(yīng)敷設(shè)在同一橋架或線槽中，本安電纜電線和非本安電纜電線也不應(yīng)敷設(shè)在同一橋架或線槽中。當本安電纜和非本安電纜在同一橋架中敷設(shè)時，應(yīng)用接地金屬隔板或具有足夠耐壓強度的絕緣板隔離，或supplyandsignalcabling/wiringshallnotbelaiddowninthesamecabletray/duct,andintrinsicallysafecable/wiringandnon-intrinsicallysafecable/wiringshallnotbelaiddowninthesamecableduct/tray.Incaseintrinsicallysafecableandnon-intrinsicallysafecableareinsametray,theyshallbeseparatedinarrangementbyearthedmetalisolationplateorinsulationplateofsufficientpressureresistancestrengthandthespaceshallbeatleast50mm,theyshallbefirmlyfixedseparately.(4)電纜敷設(shè)完畢，終端電纜電線應(yīng)在設(shè)備和儀表周圍盤成卷，并用扎帶捆扎，在電纜頭lberolledintoreelaroundequipmentandinstrumentandtiethembybindingbelt.Beforefabricatingcableterminals,propercoveringandprotectionmeasureswillbetaken.installedattheinletstoequipmentsandinstrumentsinaccordancewithconstructiondrawings.Thesealsbetweencableglandsandinstrumentsshouldbeverytight,topreventwaterfromgoingintoinstrumentsanddamageelements.制作電纜頭時應(yīng)使用熱縮管。Allcablesshallbeterminatedtoproperterminalsorlocationsinaccordancewithwiringconnectionlists.Thecableterminationshallbefabricatedwithshrinkingtubesheath.(7)屏蔽電纜的屏蔽層，應(yīng)在控制室或機柜間的儀表盤或機柜側(cè)接地，現(xiàn)場儀表側(cè)的屏蔽線不能接地。Thegroundingofcableshieldshallbeperformedattheinstrumentpanelsand/orracksinthecontrolroomand/orrackroom.Theotherendsonsiteshallnotbegrounded.(8)剝電纜及導(dǎo)線的護套時應(yīng)特別小心，不能損壞導(dǎo)線和絕緣層。剝線時，應(yīng)采用專用剝線鉗，而不能用刀或剪刀。信號電纜和電源電纜的芯線為多股絞線，多股絞線的電纜應(yīng)使用andsleeveofleadtomakesurenodamagehappen.Specialwirestrippershallbeusedinsteadofnormalknifeorscissors.Coreofsignalcableandpowersourcecableismulti-strandstwistwire,whichshallbeconnectedtoterminalbusbarofinstrument,junctionboxandcabinetbycoppertip.(9)所有電纜終點處，必須掛上清楚且永久的電纜標志牌，并用扎帶固定。導(dǎo)線的兩端都應(yīng)標記導(dǎo)線標志，所有導(dǎo)線應(yīng)標志清楚、連接牢固并保持一致性。在安裝前，線號的類型應(yīng)經(jīng)業(yè)主的認可。HangclearandpermanentSScablemarkingboardinallcableterminalsusingSSbindingbelt.TwoendsofleadshallbemarkedasLEADandallleadshallbemarkedclearlyandfastenedtogether.Beforeinstalling,typeofwireshallgetapprovalofBYC.(10)制作電纜頭時，絕緣帶應(yīng)干燥、清潔、無折皺、層間無空隙，抽出屏蔽接地線時，eandnoclearancebetweenlayerswhenmakingcableterminals.Insulatedlayercannotdamagewhenletshieldgroundingwireout.Armorlayershallbeinglandwithoutexpansion.(11)線路敷設(shè)完畢，應(yīng)進行校線及標號，測量絕緣電阻；測量線路絕緣電阻時，必須將已連接上的儀表設(shè)備及元件斷開。Performcalibrationandmarkingafterwiringfinished,instrumentationandcomponentsmustbeisolatedwhilemeasureinsulatedresistance.4)導(dǎo)壓管及分析取樣管/空氣管Processimpulseandanalyzerpiping/tubing/Airpipingwork,Shallmakesurethatthepipes/tubesandthefittingsarefreefromsoil,water,oil,slugsandotherforeignmatters.(2)導(dǎo)壓管的安裝坡度，連接方式必須完全按照儀表安裝圖進行施工。取源根部閥安裝時應(yīng)注意流向正確。施工完成后，除了三閥組或五閥組的平衡閥外，所有閥門都應(yīng)關(guān)閉。InstallationslopeandconnectiontypeofimpulsepipingwillbeconstructedasperinstrumentinstallationDWGtotally.Takespecialattentiontoflowdirectionofvalveroot.Afterconstruction,allvalvesshallbeclosedexceptforbalancevalves,suchasthree-valve-teamorfive-valve-team.(3)使用專用割管器對管道進行切割，不應(yīng)斜切管道而使管道不能密封。在切割后，應(yīng)用刮刀或半圓銼刀去除管口的毛刺。Pipesandtubesshallbecutatrightanglesbyusinganexclusivecutter.Aftercuttingtubes,burrsshallberemovedbyscrapersorhalf-roundfiles.adequatelytopreventsaggingandmechanicalinjury.(5)在切割或焊接時，應(yīng)將導(dǎo)壓管從儀表上移開，避免電流通過變送器。Disconnectedpressuretubingfromtheinstrumentwhenitneedcuttingorwelding,avoidcurrentpassingthroughthetransmitter.(6)導(dǎo)壓管的支撐最大距離為1.5m，根據(jù)儀表標準圖的要求，相鄰的導(dǎo)壓管可以一起固定。Tubingshallbesupportedevery1.5mmaximumandadjacenttubeshallbeclippedtogetherinaccordancewithinstrumentstandarddrawing.connectionsoninstrumentsshallbepluggedtopreventcontaminationbeforetubingisconnected.(8)安裝完成后，管內(nèi)壁應(yīng)清潔并用儀表風進行吹掃。管兩端應(yīng)蓋好，防止沙、土、油和其它外部物質(zhì)進入管內(nèi)。在空氣管線壓力試驗完成后，應(yīng)用記號筆在儀表終端接頭側(cè)的管道上做個標記，以便工藝管道壓力試驗完成后、重新恢復(fù)空氣管線時能確?？諝夤苊芊馔旰谩fterinstallation,theinsideofpipingandtubingshallbecleanedandtestedbyairblowingandtheendofpipeandtubeshallbecoveredtopreventtheingressesofsoil,sand,oil,waterandotherforeignmatters.Themaleconnectortoinstrumentshouldbemarkedalocationtoensuresealingwhenitwillberecoveredafterprocesspressuretesting.(9)在每個氣源分配器出口處掛氣動閥門位號的標記牌.7.儀表調(diào)試instrumenttesting1)儀表單體調(diào)試總述instrumentmonomertesting的項目需要進行檢查：Visualcheckshallbeperformedonallinstrumentsbeforethecalibration/testcommences.Thefollowingitemslistedbelowneedtobechecked:tag,range,accessories,functions,etc.(3)儀表不能被損壞或變形或不正確裝配。Eachinstrumentisnotdamagedordeformedorincorrectlyassembled.(4)供貨商的說明書和出廠檢驗合格證書齊備。Vendor’sspecificationsandcertificationsarecomplete.2)調(diào)校室的要求Calibrationroomrequirements:fullsunshine/goodlighting,nodust/noise/damporstrongmagnetism.(2)室內(nèi)溫度在10~35℃之間，空氣相對濕度不大于85%，無腐蝕性氣體。Indoortemperatureshallbein10~35℃,relativehumidityofairshallbenomoretha85%andwithoutcorrosivegas.3)儀表試驗的電源電壓應(yīng)穩(wěn)定。交流50HZ220V的電壓波動不超過額定值的±10%；24VDC直流電源電壓波動不應(yīng)超過±5%。Powersupplyforcalibrationshallbebalanced.50HZ220VACpowersupplytobeused,voltagefluctuationnomore±10%ofratedvalue,24VDCpowersupply,voltagefluctuationnomorethan±5%ofratedvalue.4)儀表試驗的氣源應(yīng)清潔、干燥，氣源壓力穩(wěn)定，波動值不超過額定值的±10%。Theairforinstrumenttestshallbecleananddrywithsmoothpressureandfluctuationofnomorethan±10%ofratedvalue.herebyshallhavequalifiedcertificateandtheirprecisionshallmeetrequirements.6)調(diào)校人員必須持證上崗，嚴禁無證人員調(diào)試。Onlyqualifiedcalibrationworkerscanperformtesting.7)要認真核對儀表的零點、量程，調(diào)校應(yīng)在全刻度范圍內(nèi)均勻選取。Checkzeroandcapacityofinstrumenttoensurealltestingwillbedoneevenlyinthewholecapacity.8)所有的校驗、調(diào)試結(jié)果應(yīng)被記錄。調(diào)校記錄執(zhí)行“石油化工建設(shè)工程項目交工技術(shù)文件3543-2007”。Alltestorcalibrationresultsshouldberecorded.Thecalibrationformsshallimplementtherulesandstipulationsof“RegulationofforTechnicalDocumentforofConstructionCompletionofforPetrochemicalIndustryProject”(SH/T3503-20071)”and“SpecificationforProcessTechnicalDocumentofPetro