PID图例符号介绍

1LINESERVICEIDENTIFICATIONSYMBOLSERVICE符号帮助AIRSYSTEMS空气系统IAINSTRUMENTAIR仪表风PAPLANTAIR工厂风DA烧焦空气STEAMANDCONDENSATESYSTEMS蒸汽和凝液系统HCHIGHPRESSURECONDENSATE高压蒸汽凝液MCMEDIUMPRESSURECONDENSATE中压蒸汽凝液LCLOWPRESSURECONDENSATE低压蒸汽凝液SCSURFACECONDENSATE表面凝液DSDILUTIONSTEAM稀释蒸汽HSHIGHPRESSURESREAM高压蒸汽MSMEDIUMPRESSURESTEAM中压蒸汽LSSUPERHEATEDLOWPRESSURESTEAM过热低压蒸汽PSSATURATEDLOWPRESSURESTEAM饱和低压蒸汽SHSSUPERHIGHPRESSURESTEAM超高压蒸汽DRAINSYSTEMS排放系统CDCHEMICALDRAIN化污LDLIQUIDDRAIN液体排放NDNON-CONTAMINATEDPOLLUTIONDRAIN2无污染排放ODOILYDRAIN油污EXHAUSTANDVENTSYSTEMSAVATMOSPHERICVENT(NOTFROMPSV)通大气（不从安全阀）SVSAFETYVALVETOATMOSPHERE安全伐排大气FLARESYSTEMS火炬系统DFDRYFLARE干火炬WFWETFLARE湿火炬GASSYSTEMS气体系统FGFUELGAS燃料气HGHYDROGEN氢气NGNITROGEN氮气SPECIALLIQUIDSYSTEMS特殊液体系统CLCAUSTIC腐蚀性QOQUENCHOIL急冷油SOSEALOIL密封油WOWASHINGOIL冲洗油（压缩机）PROCESSSERVICE(NORMAL)PPROCESS工艺REFRIGERANTSYSTEMSBRBINARYREFRIGERANT二元制冷PRPROPYLENEREFRIGERANT3丙烯冷剂WATERSYSTEMS水系统BFWBOILERFEEDWATER锅炉给水FWFIREWATER消防水IWINTERMEDIATEWATER二次水CWRCOOLINGWATERRETURN冷却水回水CWSCOOLINGWATERSUPPLY冷却水PWPOLISHEDWATER工艺水QWQUENCHWATER急冷水UWUTILITYWATER工业水(FLUSHING)清理接口（冲洗）REMOVABLESPOOL可拆除短管NOZZLEORPIPEWITHBLINDFLANGE带盲法兰的喷嘴或管线SPACERFORBLIND盲管位置6NORMALLYCLOSED正常情况下关闭NORMALLYOPEN正常情况下打开FIGUREBB图REVERSIBLEBLIND8字盲板ORIFICESWAGE孔板INSULATEDFLANGEDJOINT保温法兰连接PIPECAP(WELDED)管帽（焊接）PIPECAP(SCREWED)管帽（法兰）REDUCER变径管T-STRAINERT型过滤器PERMANENTY-STRAINER(WITHVALVE)带阀门Y型过滤器TEMPORARYSTRAINER临时过滤器HOSECONNECTION软管接口SAMPLECONNECTION取样口**-SERVICESYMBOL符号说明SEQUENCENUMBER序列号OPENDRAINHUB敞口集液器MATERIALBALANCESTREAMNUMBER物流号CONTINUTYARROW延续箭头INITIALFEED初始进料GRADE等级TRENCH7地沟LINEIDENTIFICATION管线说明INSULATIONCODE保温代码MATERIALSPECIFICATION材质BRANCHIDENTIFIER分支标识SEQUENCENUMBER管线号PROCESSSECTIONAREA(MAYBESINGLEDIGIT)工艺区LINESERVICESYMBOL管线符号说明LINESIZE管线尺寸VALVESGATEVALVE闸阀BUTTERFLYVALVE蝶阀DIAPHRAGMVALVE隔膜阀GLOBEVALVE球阀NEEDLEVALVE针型阀PLUGVALVE截止阀BALLVALVE球阀CHECKVALVE止逆阀STOPCHECKVALVE(BOILERNON-RETURNVALVE)带手轮止逆阀THREE0RFOURVALVE8三通或四通阀MULTIPORTPLUG多向切断阀ANGLEVALVE角阀DUALTANDEMBLOWNDOWNVALVES两段排污阀RANTYPEVALVER型阀T-TYPEGLOBEVALVET型球阀AUTOMATICRECIRCULATIONVALVE自动再循环阀INTERLOCKEDVALVES(MECHANICALLINK))机械联动阀QUICKOPENINGORCLOSINGVALVE快速开关阀VALVEWITHBODYCAVITYRELIEFORBODYBLEEDCONNECTION带有排放阀的阀门DAMPER挡板APPROPRIATEABBREVIATION合适的缩写SLIDEGATEVALVE滑动闸阀EQUIPMENTIDENTIFACATION设备符号SUPPLIEDWITHVENDOREQUIPMENT供应商提供的设备SPARE(A,B,C,ETCUSEDIFPARALLELUNITS)同一设备的编号SEQUENCENUMBER序列号AREANUMBER区号EQUIPMENTCODEOFACCOUNT设备代码UNITDESIGNATION单元名称E–ETHYLENE9乙烯H-DPGHYDROGENATION汽油加氢U-UTILITY&OFFSITE公用工程PIPINGSPECIALTYITEMSANDMISCELLANEOUSEQUIPMENT特殊管项和各种设备ALLPIPINGSPECIALTYITEMSAREIDENTIFIED所有特殊管线有以下注明SEQUENCENUMBER(NUMBEREDINSAMEWAYASINSTRUMENT)序列号（与仪表排序相同）EXHAUSTHEAD负呀总管ATOMPHERICVENTWITHWEATHERCAP防雨放空管DUPLEXSTRAINER相同的过滤器PERMANENTBASKETSTRAINER提篮式过滤器FLEXIBLEHOSE金属软管EXPANSIONJOINT膨胀节INLINEMIXERSORVENTURITYPEDESUPERHEATER内嵌式混合器或文丘里型混合器SILENCER消音器EJECTOROREDUCTOR喷射器FILTER过滤器FILTERWITHHOOD带罩过滤器CONDENSATETRAP(NON-PROCESS)凝液疏水器FIREPROTECTION10消防FIREHYDRANT消防炮FIREHYDRANTWITHMONITOR带监视器的消防栓FIREHYDRANTWITHPUPPERCONNECTION消防栓HOSEHOUSE消防箱VALVEWITHINDICATORPOST带指示的阀MONITOR监视器EMIFELEVATEDPUMP泵CENTRIFUGAL离心泵METERINGORRECIPROCATING计量泵或往复式泵ROTARY{GEAR,SCREW}齿轮泵VERTICALSUMPPUMP立式污水泵VERTICALCANNEDPUMP(PFDONLYALLTYPES)泵LIQUIDRINGVACUUMPUMP水环式真空泵COMPRESSOR压缩机SINGLESTAGERECIPROCATINGMULTI-STAGERECIPROCATING11CENTRIFUGAL离心式ROTARY旋转式BLOWERFAN鼓风机BLOWER(PFDONLYALLTYPES)鼓风机COMPRESSOR(PFDONLY)压缩机SCREW螺杆式DRIVER驱动装置ELECTRICMOTOR电动马达DIESELENGINE.ETC柴油发动机APPROPRIATEABBREVIATION相应的缩写AAIR空气DDIESEL柴油HHYDRAULIC水力的MELECTRIC电气的STEAMTURBINE蒸汽涡轮EXPANDER扩大室HEATEXCHANGER换热器SHELLANDTUBEHEATEXCHANGER12管壳式换热器HORIZONTALSHELLANDTUBEHEATEXCHANGER水平式管壳式换热器VERTICALSHELLANDTUBEHEATEXCHANGER垂直式管壳式换热器SINGELSECTIONDOUBLEPIPEEXCHANGERTWOSECTIONDOUBLEPIPEEXCHANGERAIRCOOLER空冷器AIRCOOLER(PFDONLY)空冷器KETTLETYPEREBOILERORSTEAMGENERATORKETTLETYPEEXCHANGER(PFDONLY)GRAPHITEBLOCKTYPEEXCHANGERPLATEEXCHANGERDRAWINGIDENTIFICATION图形说明REVISIONNO.修订号DRAWINGNO.图号AREANO.区号JOBNO.工号DRAWINGSIZEVESSELSANDFURNACES容器和炉子FLOATINGROOFTANK浮顶罐CONEROOFTANKWITHINTERNALCOIL13带内盘管锥型顶罐COLUMN柱型PACKINGINTERNALBAFFLEVORTEXBREAKER旋风分离器CABINTYPEHEATERWITHEXTERNALCROSS-OVERSHORIZONALTYPEHEATERWITHINTERNALCROSSOVERS内部有