PID控制图例符号介绍

1、* *LINESERVICE IDENTIFICATIONSYMBOLSERVICE符号帮助AIR SYSTEMS空气系统IAINSTRUMENTAIR仪表风PAPLANT AIR工厂风DA烧焦空气STEAMANDCONDENSATESYSTEMS蒸汽和凝液系统HCHIGHPRESSURE CONDENSATE高压蒸汽凝液MCMEDIUM PRESSURE CONDENSATE中压蒸汽凝液LCLOW PRESSURE CONDENSATE低压蒸汽凝液SCSURFACE CONDENSATE表面凝液DSDILUTION STEAM稀释蒸汽HSHIGH PRESSURE SREAM高压蒸汽MSME

2、DIUM PRESSURE STEAM中压蒸汽LSSUPERHEATED LOW PRESSURE STEAM过热低压蒸汽PS SATURATED LOW PRESSURE STEAM饱和低压蒸汽SHS SUPER HIGH PRESSURE STEAM超高压蒸汽DRAIN SYSTEMS排放系统CDCHEMICAL DRAIN化污LDLIQUID DRAIN液体排放ND NON-CONTAMINATED POLLUTION DRAIN无污染排放OD OILY DRAIN油污EXHAUST AND VENT SYSTEMSAVATMOSPHERIC VENT (NOT FROM PSV)通大气

3、(不从安全阀)SVSAFETY VALVE TO ATMOSPHERE安全伐排大气FLARE SYSTEMS火炬系统DFDRY FLARE干火炬WFWET FLARE湿火炬GAS SYSTEMS气体系统FG FUEL GAS燃料气HGHYDROGEN氢气NG NITROGEN氮气SPECIAL LIQUID SYSTEMS特殊液体系统CL CAUSTIC腐蚀性QOQUENCHOIL急冷油SOSEAL OIL密封油WOWASHINGOIL冲洗油(压缩机)PROCESS SERVICE (NORMAL)P PROCESS 工艺REFRIGERANT SYSTEMSBRBINARY REFRIGER

4、ANT二元制冷PRPROPYLENE REFRIGERANT丙烯冷剂WATER SYSTEMS水系BFW BOILER FEED WATER锅炉给水FW FIRE WATER消防水IW INTERMEDIATE WATER二次水CWRCOOLING WATER RETURN冷却水回水CWS COOLING冷却水PW POLISHED工艺水QW QUENCH急冷水WATER SUPPLYWATERWATERUW UTILITY WATER工业水WW WASTE WATER废水SERVICEMISCELLANEOUS ABBREVIATION ANDSYMBOLS各种缩写和符号A AIR MOTO

5、R空气马达ACC ACCESSIBLE可接近的ATM ATMOSPHERE大气BLBATTERY LIMIT界区BTSBUBBLE TIGHTSHUT-OFF缓慢紧密切断BVBY VENDOR由供应商提供CONN CONNECTION连接CSC CAR SEAL CLOSED关闭锁定CSOCAR SEAL OPEN打开锁定DECDETAIL ENGINEERING CONTRACTOR工程承包商详细资料EOR END OF RUN运行结束SOREW EYEWASH洗眼FLG FLANGE法兰LCLOCKED CLOSED锁定关闭LOLOCKED OPEN锁定打开NCNORMALLY CLOSE

6、D正常情况下关闭NNFNORMALLYNO FLOW正常情况下无流量NONORMALLYOPEN正常情况下打开SAMPLE CONNECTION取样点SCSAMPLE CONNECTIONWITH COOLER连接冷却器的取样点SORSTART OF RUN开始运行SRSTRAINER过滤器SSSAFETY SHOWER安全喷淋TLINE DRIP TRAP疏水器TSOTIGHT SHUT OFF密闭切断UCUTILITY CONNECTION公用工程接口LINESMAIN LINE主SECONDARY LINE副线UNDERGROUND OR BURY地下或隐藏ELECTRICALLY TR

7、ACED电缆线SPECIAL TRACED特殊管线STEAM TRACED蒸汽伴热JACKETED夹套PACKAGED EQUIP BOUNDARY成套设备分界线BATTERY LIMIT BOUNDARY界区分界线FUTURE未来MATERIAL SPEC BREAK材料规格分界点DESIGN BREAK设计分界点BELOW GROUND LINE RISING ABOVE GRADE地管伸出点BREAK OF REPONSIBILITY责任分界点MISCELLANEOUS ITEMS各种细节ROD OUT CONNECTIONCLEAN OUT CONNECTION (FLUSHING)清

8、理接口(冲洗)REMOVABLE SPOOL可拆除短管NOZZLE OR PIPE WITH BLIND FLANGE带盲法兰的喷嘴或管线SPACER FOR BLIND盲管位置NORMALLY CLOSED正常情况下关闭NORMALLY OPEN正常情况下打开FIGURE BREVERSIBLE BLIND8 字盲板ORIFICE SWAGE孔板INSULATED FLANGED JOINT保温法兰连接PIPE CAP (WELDED)管帽(焊接)PIPE CAP (SCREWED)管帽(法兰)REDUCER变径管T-STRAINERT 型过滤器PERMANENT Y-STRAINER (W

9、ITH VALVE)带阀门 Y 型过滤器TEMPORARY STRAINER临时过滤器HOSE CONNECTION软管接口SAMPLE CONNECTION取样口*-SERVICE SYMBOL符号说明SEQUENCE NUMBER序列号OPEN DRAIN HUB敞口集液器MATERIAL BALANCE STREAM NUMBER物流号CONTINUTY ARROW延续箭头INITIAL FEED初始进料GRADE等级TRENCH地沟LINE IDENTIFICATION管线说明INSULATION CODE保温代码MATERIAL SPECIFICATION材质BRANCH IDENT

10、IFIER分支标识SEQUENCE NUMBER管线号PROCESS SECTION AREA(MAY BE SINGLE DIGIT)工艺区LINE SERVICE SYMBOL管线符号说明LINE SIZE管线尺寸VALVESGATE VALVE闸阀BUTTERFLY VALVE蝶阀DIAPHRAGMVALVE隔膜阀GLOBE VALVE球阀NEEDLE VALVE针型阀PLUG VALVE截止阀BALL VALVE球阀CHECK VALVE止逆阀VALVE)STOP CHECK VALVE(BOILER NON-RETURN带手轮止逆阀THREE 0R FOUR VALVE三通或四通阀M

11、ULTI PORT PLUG多向切断阀ANGLE VALVE角阀DUAL TANDEM BLOWNDOWN VALVES两段排污阀RAN TYPE VALVER 型阀T-TYPE GLOBE VALVET 型球阀AUTOMATIC RECIRCULATION VALVE自动再循环阀INTERLOCKED VALVES(MECHANICAL LINK)机械联动阀QUICK OPENING OR CLOSING VALVE快速开关阀VALVE WITH BODY CAVITY RELIEF OR BODY BLEED CONNECTION带有排放阀的阀门DAMPER挡板APPROPRIATE AB

12、BREVIATION合适的缩写SLIDE GATE VALVE滑动闸阀EQUIPMENT IDENTIFACATION设备符号SUPPLIED WITH VENDOR EQUIPMENT供应商提供的设备SPARE(A,B,C,ETC USED IF PARALLEL UNITS)同一设备的编号SEQUENCE NUMBER序列号AREA NUMBER区号EQUIPMENT CODE OF ACCOUNT设备代码UNIT DESIGNATION单元名称E - ETHYLENE乙烯H - DPG HYDROGENATION汽油加氢U - UTILITY & OFF SITE公用工程PIPI

13、NG SPECIALTY ITEMS ANDMISCELLANEOUS EQUIPMENT特殊管项和各种设备ALL PIPING SPECIALTY ITEMS ARE IDENTIFIED所有特殊管线有以下注明SEQUENCE NUMBER ( NUMBERED IN SAME WAY AS INSTRUMENT )序列号(与仪表排序相同)EXHAUST HEAD负呀总管ATOMPHERIC VENT WITH WEATHER CAP防雨放空管DUPLEX STRAINER相同的过滤器PERMANENT BASKET STRAINER提篮式过滤器FLEXIBLE HOSE金属软管EXPANS

14、ION JOINT膨胀节INLINE MIXERS OR VENTURI TYPE DESUPER HEATER内嵌式混合器或文丘里型混合器SILENCER消音器EJECTOR OR EDUCTOR喷射器FILTER过滤器FILTER WITH HOOD带罩过滤器CONDENSATE TRAP (NON-PROCESS)凝液疏水器FIRE PROTECTION消防FIRE HYDRANT消防炮FIRE HYDRANT WITH MONITOR带监视器的消防栓FIRE HYDRANT WITH PUPPER CONNECTION消防栓HOSE HOUSE消防箱VALVE WITH INDICAT

15、OR POST带指示的阀MONITOR监视器EMIF ELEVATEDPUMP泵CENTRIFUGAL离心泵METERING OR RECIPROCATING计量泵或往复式泵ROTARY GEAR ,SCREW 齿轮泵VERTICAL SUMP PUMP立式污水泵VERTICAL CANNEDPUMP (PFD ONLY ALL TYPES)泵LIQUID RING VACUUM PUMP水环式真空泵COMPRESSOR压缩机SINGLE STAGE RECIPROCATINGMULTI-STAGE RECIPROCATINGCENTRIFUGAL离心式ROTARY旋转式BLOWER FAN鼓

16、风机BLOWER (PFD ONLY ALL TYPES)鼓风机COMPRESSOR (PFD ONLY)压缩机SCREW螺杆式DRIVER驱动装置ELECTRIC MOTOR电动马达相应的缩写ADHMDIESEL ENGINE .ETC柴油发动机APPROPRIATE ABBREVIATIONAIR空气DIESEL柴油HYDRAULIC水力的ELECTRIC电气的STEAM TURBINE蒸汽涡轮EXPANDER扩大室HEAT EXCHANGER换热器SHELL AND TUBE HEAT EXCHANGER管壳式换热器HORIZONTAL SHELL AND TUBE HEAT EXCHA

17、NGER水平式管壳式换热器VERTICAL SHELL AND TUBE HEAT EXCHANGER垂直式管壳式换热器SINGEL SECTION DOUBLE PIPE EXCHANGERTWO SECTION DOUBLE PIPE EXCHANGERAIR COOLER空冷器AIR COOLER (PFD ONLY)空冷器KETTLE TYPE REBOILER OR STEAM GENERATORKETTLE TYPE EXCHANGER (PFD ONLY)GRAPHITE BLOCK TYPE EXCHANGERPLATE EXCHANGERDRAWING IDENTIFICAT

18、ION图形说明REVISION NO.修订号DRAWING NO.图号AREA NO.区号JOB NO.工号DRAWING SIZEVESSELS AND FURNACES容器和炉子FLOATING ROOF TANK浮顶罐CONE ROOF TANK WITH INTERNAL COIL带内盘管锥型顶罐COLUMN柱型PACKINGINTERNAL BAFFLEVORTEX BREAKER旋风分离器CABIN TYPE HEATER WITH EXTERNAL CROSS-OVERSHORIZONAL TYPE HEATER WITH INTERNAL CROSSOVERS内部有交叉的水平加

19、热管VESSEL ELEVATIONS离地面高度INSULATION CODE保温代码DANTI-SWEATINSULATION防水保温EELECTRICALTRACINGFFULL HEATCONSERVATIONHNORMAL HEAT CONSERVATION般保温M DUAL SERVICE INSULATIONP PERSONNEL PROTECTION防护人员SSPECIAL特殊的TSTEAM TRACINGVACOUSTICAL听力的BREAK OF RESPONSIBILITYSYMBOL FOR LOCATION OF TIE-IN POINT CONNECTEDU NEW

20、ETHYLENE STORAGE AREA乙烯新区的OSBL (ONNORTH SIDE RACK)W OSBL (ON MAIN RACK IN FRONT OF NEW HEATER)OSBL (ONSOUTH SIDE RACK)OSBL (COOLING WATER)EXISTING AREADPG AREAC4 C4 HYDRO AREAD(W)DPG AREA AND THROUGH THETIE-INPOINT(W) ONTHERACKC4(U)C4 HYDRO AREA AND THROUGHTHETIE-IN POINT(U)ONTHE RACKE(W)EXISTING AR

21、EA AND THROUGHTIE-INPOINT(W) ONTHERACKE(X) EXISTING AREA AND THROUGH TIE-IN POINT(X) ON THE RACKGENERAL NOTES1. FOR INSTRUMENTATION SYMBOLS SEE DWG NO.0005B仪表符号参阅图DWGNO.0005B2. FLOW DIAGRAMS ARE DIAGRAMATICONLY 。 ROUTINGOF PIPELINES MUST BE INVESTIGATED FOR VENTINGOF HIGH POINTS OF PIPING AND DRAINI

22、NGOF LOWPOINTS OF PIPING AND EQUIPMENT . THESE POINTSARE NOT NORMALLY SHOWN ON P&I FLOW DIAGRAM3. THE CONTROL VALVE ASSEMBLY WILL HAVE A 3/4 DRAINVALVE LOCATED ON THE UPSTREAM SIDE OF THE CONTROLVALVE在调节阀的上游应有一个3/4 英寸的就地排放阀。.4. VESSEL INTERNALS, FURNACE COILS , HEADERS, ANDMANIFOLDS ARE SHOWN TO

23、 THE EXTENT REQUIRED FOR CLARITY.容器内部、炉管等在必要的地方标明。5. ALLOWANCE IS TO BE MADE FOR TEMPORARY STRAINERSIN SUCTION LINES OF ALL PUMPS AND COMPRESSOR 1 1/2 AND LARGER . Y TYPE STRAINERS ARE TO BE PROVIDEDIN SUCTIONLINES 1 1/2 AND SMALLER.在所有泵、压缩机的吸入管线上均装有1 1/2 "或更大的临时过滤器，"Y"型过滤器则被装在 11/2 或

24、更小的管线上。6. TOATMAT SAFE LOCATION MEANS3000mmABOVEANYPLATFORM OR STAIRWAY WITHIN AN 8000mm RADIUS.7. 9mmWEEP HOLE SHALL BE PROVIDEDIN LOW POINTSOFRELIEF VALVE DISCHARGES VENTING TO ATMOSPHERE.在排大气阀的低点有一个9mm 的孔来排出液体。8. BATTERY LIMIT OR ROOT VALVES ARE NOT NECESSARILY SHOWNON PROCESS P&IDS. THESE SH

25、OWN BE SHOWN AS REQUIREDON DISTRIBUTION AND/OR UTILITY P&IDS DURING DETAILEDDESIGN.界区阀和根部阀在工艺流程图中不一定有，但在公用工程的P&IDS 图中会有详细资料。9. PUMP SEAL FLUSHES AND COOLING DETAILS TO BE PROVIDEDBY DETAILED ENGINEERING CONTRACTOR. FOR SPECIALREQUIREMENTS, SEE PUMP DATA SHEETS OR SCHEDULES.泵的密封和冷却系统由工程承包商提供，

26、有特殊要求请查看泵的曲线和表。10. ALL ELEVATIONS SHOWN ARE PRELIMINARY, ELEVATIONS ARE TOBE FINALIZED DURING DETAILED ENGINEERING, TOWER AND DRUM ELEVATIONS ARE BASED ON REBOILER HYDRAULICS ORPUMP NPSH REQUIRENENTS.11. BLOCK VALVES FOR ALL INSTRUMENTS SUCH ASPLPGLI AND LG ARE NOT INDICATED AND THESE BLOCK VALVES A

27、RE 3/4 , IF NOT INDICATED.12. RUNNING SIGNALS FOR ALL MOTOR ARE NOT INDICATED. 所有的马达运行信号不被显示。LINE DESIGATIONSCONNECTION TO PROCESS, MECHANICALLINE OR INSTRUMENT INPUTCAPILLARY TUBING(FILLED SYSTEM)PNEUMATIC SIGNALELECTRICAL SIGNAL ORSOFTWARE SIGNALHYDRAULIC (LIQOID) SIGNALELECTROMAGNETIC OR SONIC SI

28、GNAL(INCLUDING RADIO WAVES, NUCLEARRADIATION,HEAT AND LIGHT)INSTRUMENTAIR SUPPLYINSTRUMENTLINE PURGE*-PURGE MEDIUMNOTED)(LINE SERVICE IDENTIFICATION OR ASTEMPERATURE INSTRUMENTSSINGLE THERMOCOUPLE, RTD,GAUGE OR WELL,* - RTD (IF RESISTANCETEMPERATURE DETECTOR)DUPLEX THERMOCOUPLEIN ONE WELLMULTI-ELEME

29、NT THERMOCOUPLE FORDIFFERENT ELEVATIONS OR ZONES(INDICATE FIRST AND LAST TAGNUMBERS OR TAG NUMBER SUFFIXES)TEMPERATURE REGULATOR温度调节阀PRESSURE INSTRUMENTS压力调节器CONTROLLING SIDEPRESSURE REDUCING REGULATOR-SELF-CONTAINEDPRESSURE REGULATOR WITH EXTERNAL PRESSURE TAPEXTERNALDEFFERENTIAL PRESSURE REDUCING

30、WITH EXTERNAL ANDPRESSURE TAPSSAFETY RELIEF VALVEPRESSURE AND VACUUM SAFETYRELIEF VALVEPILOT OPERATED SAFETY RELIEF VALVERELIEVING MANHOLE COVERPRESSURE OR VACUUM RELIEFSET PRESS设定压力PRESSURE RELIEF RUPTURE DISKVACUUM RELIEF RUPTURE DISKFLOW INSTRUMENTS流量计ORIFICE PLATE OR RESTRICTION ORIFICE孔板或限流孔ORI

31、FICE PLATE IN QUICK CHANGE FITTINGVENTURL FLOW TUBE OR FLOW NOZZLE文丘里流量计或喷嘴INSERTION TYPE FLOW INSTRUMENT插入型流量计FLUMEWEIRROATMETER转子流量计FLOW STRAIGHTENING VANESTYPEEXTERNAL TYPE FLOW INSTRUMENT SPECIFYOUTSIDE BUBBLEIN-LINE FLOW INSTRUMENTSPECIFY TYPEOUTSIDE BUBBLELEVEL INSTRUMENTS液位计EXTERNAL LEVEL INS

32、TRUMENT外部液位计（玻璃板、浮筒式）INTERNAL FLOAT TYPE LEVEL INSTRUMENT浮筒式液位计BUBBLE TYPE LEVEL INSTRUMENTRADIATION OR SONIC LEVEL INSTRUMENTFLOAT AND TAPE TYPE LEVEL INDICATOR OR TRANSMITTER FORSTORAGE TANKSOTHER LEVEL INSTRUMENTS SPECIFY TYPE OUTSIDE BUBBLELEVEL REGULATOR WITH MECHANICAL LINKAGECONTROL VALVESGLO

33、BE VALVE球阀ANGLE角阀BUTTERFLY蝶型BALL. PLUG OR DISC球、塞子、圆盘DIAPHRAGM ( SAUNDERS )隔膜OTHER ( SPECIFY NEXT TO SYMBOL ) 其他的（在下一个符号中详细说明）THREE WAY GLOBE三通球型调节阀FOUR WAY VALVE四通调节阀ACTUATORSSPRING AND DIAPHRAGM弹簧和隔膜DIFFERENTIAL DIAPHRAGM微分隔膜PISTON TYPE - SINGLE ACTINGPISTON TYPE - DOUBLE ACTINGELECTRIC MOTOR电动马达S

34、OLENOID螺线管ELECTRO-HYDRAULICGAS MOTOR气动马达MANUAL HANDWHEEL手轮ACCESSORIESSIDE MOUNTEDHANDWHEELMANUAL RESETREMOTE RESETADDITIONALINFORMATIONBODYSIDE阀体尺寸BTSBUBBLETIGHT SHUT-OFFTSOTIGHTSHUT-OFFAIR FAILURE POSITIONFOFAIL OPEN故障时打开FCFAIL CLOSE故障时关闭FL(O) FAIL LOCKED(LAST POSITION) VALVE OPENS ON DECREASINGCONTROL SIGNALFL(C) FAIL LOCKED(LAST POSITION) VALVE CLOSES ON DECREASINGCONTROL SIGNALSPLIT RANGE DESIGNATIONA FIRST VALVE TO RESPOND TO INCREASING CONTROL SIGNALB SECOND VALVE TO RESPOND TO INCREASING CONTROL SIGNALMISC