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1/18LINESERVICEIDENTIFICATIONSYMBOLSERVICE符号帮助ASAIRSYSTEMS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-CONTAMINATEDPOLLUTIONDRAIN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2/18HGHYDROGEN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PRPROPYLENEREFRIGERANT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工业水洗眼FLGFLANGE法兰LCLOCKEDCLOSED锁定关闭LOLOCKEDOPEN锁定打开NCNORMALLYCLOSED正常情况下关闭NNFNORMALLYNOFLOW正常情况下无流量NONORMALLYOPEN正常情况下打开SSAMPLECONNECTION取样点SCSAMPLECONNECTIONWITHCOOLER连接冷却器的取样点SORSTARTOFRUN开始运行SRSTRAINER过滤器SSSAFETYSHOWER安全喷淋TLINEDRIPTRAP疏水器TSOTIGHTSHUTOFF密闭切断UCUTILITYCONNECTION公用工程接口LINESMAINLINE主线SECONDARYLINE副线UNDERGROUNDORBURY地下或隐藏ELECTRICALLYTRACED电缆线SPECIALTRACED特殊管线STEAMTRACED蒸汽伴热JACKETED夹套PACKAGEDEQUIPBOUNDARY成套设备分界线BATTERYLIMITBOUNDARY界区分界线FUTURE未来MATERIALSPECBREAK材料规格分界点DESIGNBREAK设计分界点BELOWGROUNDLINERISINGABOVEGRADE地管伸出点BREAKOFREPONSIBILITY责任分界点MISCELLANEOUSITEMS各种细节RODOUTCONNECTION连接杆CLEANOUTCONNECTION(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NORMALLYCLOSED正常情况下关闭4/18NORMALLYOPEN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TRENCH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5/18BALLVALVE球阀CHECKVALVE止逆阀STOPCHECKVALVE(BOILERNON-RETURNVALVE)带手轮止逆阀THREE0RFOURVALVE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–ETHYLENE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负压总管ATOMPHERICVENTWITHWEATHERCAP防雨放空管6/18DUPLEXSTRAINER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FIREPROTECTION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EMIFELEVATED如果提升PUMP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SINGLESTAGERECIPROCATING单机往复式MULTI-STAGERECIPROCATING多级往复式CENTRIFUGAL离心式ROTARY旋转式BLOWERFAN鼓风机BLOWER(PFDONLYALLTYPES)鼓风机COMPRESSOR(PFDONLY)压缩机7/18SCREW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SHELLANDTUBEHEATEXCHANGER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SINGELSECTIONDOUBLEPIPEEXCHANGER单壳程双管程换热器TWOSECTIONDOUBLEPIPEEXCHANGER双壳程双管程换热器AIRCOOLER空冷器AIRCOOLER(PFDONLY)空冷器KETTLETYPEREBOILERORSTEAMGENERATOR釜式再沸器或蒸汽发生器KETTLETYPEEXCHANGER(PFDONLY)釜式换热器GRAPHITEBLOCKTYPEEXCHANGER石墨板式换热器PLATEEXCHANGER板式换热器DRAWINGIDENTIFICATION图形说明REVISIONNO.修订号DRAWINGNO.图号AREANO.区号JOBNO.工号DRAWINGSIZE8/18VESSELSANDFURNACES容器和炉子FLOATINGROOFTANK浮顶罐CONEROOFTANKWITHINTERNALCOIL带内盘管锥型顶罐COLUMN柱型PACKING包装INTERNALBAFFLEVORTE