Loopcheck回路测试方案

1仪表回路检查方案LoopCheckScheme1.编制说明Editdescription本方案适用于上海工业气体公司合成气装置2期扩建项目仪表工程，包括回路检查的各项规定及相应要求。同时列出回路检查的方法及标准，在回路检查过程主要负责现场模拟信号及接点信号的输入工作，DCS操作站上操作主要由厂家及现场操作人员负责；同时要求有其他相关专业的协调与配合。ThisSchemeisapplytoHycoIIInstrumentProjectofShanghaiIndustrialGasCompany,includingloopcheckspecificationsandrelevantrequirements.Theloopcheckmethodandstandardhavebeenlisted.Duringtheloopcheck,weareonlyresponsiblethelocalanalogsignalandpointsignalinput.DCSoperatingstationismainlyresponsiblebyvendorandsiteoperators;atthesametime,itisrequestedcoordinateandcooperatefromotherspecialties.2.编制依据EditbasisGB500932002《自动化仪表工程施工及验收规范》GB500932002《AutomationInstrumentEngineeringConstructionandAcceptanceSpecifications》SH3521-2007《石油化工仪表施工规程》SH3521-2007《PetrochemicalInstrumentConstructionRegulations》SH3503-2007《石油化工建设工程项目交工技术文件规定》SH3503-2007《PetrochemicalConstructionProjectHandOverTechnicalandDocumentRules》GB50168-2006《电缆线路施工及验收规范》GB50168-2006《CableRunConstructionandAcceptanceSpecification》SY4031-93《石油建设工程质量检验评定标准自动化仪表安装工程》SY4031-93《PetrochemicalEngineeringQualityInspectionAssessmentStandardAutomationInstrumentInstallationproject》GB50131-2007《自动化仪表工程施工质量验收规范》GB50131-2007《AutomationInstrumentProjectConstructionQualityAcceptanceSpecification》SH3543-2007石油化工建设工程项目施工过程技术文件规定(通用电气仪表)SH3543-2007PetrochemicalConstructionProjectConstructionProcessTechnicalDocumentSpecification(GeneralElectric/Instrument)69817-01-0850001鲁奇规范《仪表通用规范》69817-01-0850001LurgiSpecification《GeneralInstrumentSpecification》269817-01-0850071鲁奇规范《回路检查工程规定》69817-01-0850071LurgiSpecification《LoopCheckProjectSpecification》3．回路检查的一般规定GeneralprovisiononLoopCheck3.1回路检查应在系统投入运行前进行，试验前系统应具备下列条件：Loopcheckshouldbecarriedoutbeforethesystemputintooperation,thefollowingconditionsshouldbeavailable.3.1.1回路检查文件夹已准备完整，符合规范要求；Loopcheckdocumentfolderhavebeenpreparedandfulfilledspecificationrequirements;3.1.2回路中的仪表设备、装置和仪表线路、仪表管道应安装完毕；Theinstruments,devicesandinstrumentline,instrumentpipelineintheloopshouldbecompletelyinstalled;3.1.3仪表配线和配管经检查确认正确完整，配件附件齐全；符合试验要求；Instrumentwiringandpipingshouldbecheckedandconfirmedcompletely,fittingsandaccessoryiscompleteinaccordancewithtestrequirements;3.1.4回路中的电源、气源已能正常供给并符合仪表运行的要求；Powerandgasresourceintheloopshouldbesuppliednormallyandinaccordancewithoperatingrequirement;3.1.5气源管道经吹扫、气密性试验合格，已通入压力稳定的仪表空气；Airsourcepipelinehasbeenpurgedandairtestqualified,instrumentairwithstablepressurehasbeenputintothesystem;3.1.6电气回路已进行校线及绝缘检查，接线正确、端子牢固、接触良好、标识正确；Electricloophasbeentested,insulationchecked,wiringcorrect,terminalfastness,contactingoodcondition,properlabel;3.2参加系统试验的施工人员应熟悉图纸及仪表系统工作原理，并具有熟练的调试技术。Constructorsinvolvewiththesystemtestshouldfamiliarwiththedrawingandinstrumentsystemoperatingprincipleandwithskilldebuggingtechnical.3.3回路检查应根据现场情况和回路的复杂程度，按回路位号和信号类型合理安排，回路试验应做好相应的试验记录；Loopcheckshouldbereasonablyarrangedaccordingtositeconditionandloopcomplexitylevel,andlooppositionnumberandsignaltype.Loopcheckshouldberecordedaccordingly;3.4仪表试验用的标准仪器仪表应具备有效的计量检定合格证，其基本误差的绝对值不超过被校准仪表基本误差绝对值的1/3;Thestandardinstrumentusingininstrumenttestshouldequippedwithmeasurecalibrationcertification,theabsoluteintrinsicerrordatashouldnotoverthan1/3totheinstrumenttobetested;3.5仪表校试验的条件、项目、方法应符合产品技术文件的规定和设计文件要求；Theinstrumenttestcondition、item、methodshouldbeaccordancewithproducttechnicalspecificationanddesignrequirements;34.回路检查的方法及要求LoopTestMethodandRequirement4.1回路检查文件夹的准备：Loopcheckfolderprepare:4.1.1仪表数据表、回路接线图、Hook-up图；Instrumentdatasheet、loopwiringdrawing、Kook-updrawing;4.1.2Vendor提供的仪表标定数据表及部分阀门的HOOK-UO图；InstrumentratingdatatableprovidedbyVendorandpartofvalveHook-updrawing;4.1.3仪表设备安装检查记录：Instrumentinstallationcheckreport;4.1.4模拟量输入回路的试验报；Analogquantityinputlooptestreport;4.1.5模拟量输出回路试验报告；Analogquantityoutputtestreport;4.1.6仪表导压管/气源管检查（泄漏及气密性检测）报告；Instrumentguidepiping/airsourcetestreport(leakagetestandairtightnesstest);4.1.7开关量仪表输入/输出检查，主要检查现场自控阀的动作是否到位、操作站上的反馈信号是否正确；Switchvalueinput/outputcheck,tochecklocalautomationvalveactinplaceornot、feedbacksignalinoperationstationiscorrectornot;4.2仪表安装检查：Instrumentinstallationcheck:4.2.1根据HOOK-UP图检查现场仪表管、线路安装是否正确完整，并符合相关规范及规定。Inspectsiteinstrumentpiping、lineinstallationiscorrectandcompleteaccordingtoHook-updrawing,fulfillwithrelevantspecificationandrule.4.2.2仪表管路应有泄漏试验并符合要求；（同管道专业一起做泄漏试验）Leakagetestshouldbedoneoninstrumentpipingandfulfillwithrequirement(leakagetesttogetherwithpipingspecialty);4.2.3仪表线路应做绝缘测试符合规范要求：Insulationtestshouldbedoneininstrumentlineandfulfilltospecificationrequirement;4.2.3.1核对电缆规格、型号是否符合设计文件规定及进行导通检查，并用兆欧表测量其绝缘电阻，其电阻值不应小于5MΩ。Verifycablespecificationandtype,iftheyarefulfilldesigndocumentrule,carryoutbreakovercheck,checkinsulationresistancevaluewithmegameter,theresistancevalueshouldnotbesmallerthan5MΩ.4.2.3.2线路敷设完毕，应进行校线和标号；Aftercompletedcablepulling,lineshouldbecheckedtagged;4.21.3.3电缆与端子连接整齐、牢固，导电良好；并进行单端接地；Cableconnectingwithterminalshouldbeinorder、fastness,conductivityingoodcondition;single-endearthed;4.2.4仪表管、线路的位号标识应清晰、方便检查，固定应牢固；4Instrumentpipingandlinepositiontaggingshouldbeclearness,easytobecheck,firmlyfixed;4.3回路试验时，仪表