1、1LINE SERVICE IDENTIFICATIONSYMBOL SERVICE 符号 帮助AIR SYSTEMS空气系统IA INSTRUMENT AIR仪表风PA PLANT AIR工厂风DA 烧焦空气STEAM AND CONDENSATE SYSTEMS蒸汽和凝液系统HC HIGH PRESSURE CONDENSATE高压蒸汽凝液MC MEDIUM PRESSURE CONDENSATE中压蒸汽凝液LC LOW PRESSURE CONDENSATE低压蒸汽凝液SC SURFACE CONDENSATE表面凝液DS DILUTION STEAM稀释蒸汽HS HIGH PRESSU
2、RE STEAM高压蒸汽MS MEDIUM PRESSURE STEAM中压蒸汽LS SUPERHEATED LOW PRESSURE STEAM 2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CD CHEMICAL DRAIN化污LD LIQUID DRAIN液体排放ND NON-CONTAMINATED POLLUTION DRAIN无污染排放OD OILY DRAIN油污EXHAUST AND VENT SYSTEMSAV ATMOSPHERIC
3、 VENT (NOT FROM PSV)通大气（不从安全阀）SV SAFETY VALVE TO ATMOSPHERE安全伐排大气FLARE SYSTEMS火炬系统DF DRY FLARE 干火炬 WF WET FLARE湿火炬3GAS SYSTEMS气体系统FG FUEL GAS燃料气HG HYDROGEN氢气NG NITROGEN氮气SPECIAL LIQUID SYSTEMS特殊液体系统CL CAUSTIC腐蚀性QO QUENCH OIL急冷油SO SEAL OIL密封油WO WASHING OIL冲洗油（压缩机）PROCESS SERVICE (NORMAL)P PROCESS工艺RE
4、FRIGERANT SYSTEMSBR BINARY REFRIGERANT二元制冷PR PROPYLENE REFRIGERANT丙烯冷剂4WATER SYSTEMS水系统BFW BOILER FEED WATER 锅炉给水FW FIRE WATER消防水IW INTERMEDIATE WATER二次水CWR COOLING WATER RETURN冷却水回水CWS COOLING WATER SUPPLY冷却水PW POLISHED WATER工艺水QW QUENCH WATER急冷水UW UTILITY WATER工业水WW WASTE WATER废水MISCELLANEOUS ABBR
5、EVIATION AND SERVICE SYMBOLS各种缩写和符号A AIR MOTOR空气马达ACC ACCESSIBLE可接近的 5ATM ATMOSPHERE大气 BL BATTERY LIMIT界区BTS BUBBLE TIGHT SHUT-OFF缓慢紧密切断BV BY VENDOR 由供应商提供CONN CONNECTION连接CSC CAR SEAL CLOSED关闭锁定CSO CAR SEAL OPEN打开锁定DEC DETAIL ENGINEERING CONTRACTOR工程承包商详细资料 EOR END OF RUN 运行结束SOREW EYEWASH洗眼FLG FLA
6、NGE法兰LC LOCKED CLOSED锁定关闭LO LOCKED OPEN锁定打开NC NORMALLY CLOSED正常情况下关闭NNF NORMALLY NO FLOW6正常情况下无流量NO NORMALLY OPEN正常情况下打开S SAMPLE CONNECTION取样点SC SAMPLE CONNECTION WITH COOLER连接冷却器的取样点SOR START OF RUN开始运行SR STRAINER过滤器SS SAFETY SHOWER安全喷淋T LINE DRIP TRAP 疏水器TSO TIGHT SHUT OFF密闭切断UC UTILITY CONNECTION
7、公用工程接口LINESMAIN LINE主线SECONDARY LINE副线UNDERGROUND OR BURY地下或隐藏ELECTRICALLY TRACED7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
8、责任分界点MISCELLANEOUS ITEMS各种细节ROD OUT CONNECTIONCLEAN OUT CONNECTION (FLUSHING)清理接口（冲洗）REMOVABLE SPOOL可拆除短管8NOZZLE 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 BB 图REVERSIBLE BLIND8 字盲板ORIFICE SWAGE孔板INSULATED FLANGED JOINT保温法兰连接PIPE CAP (WELD
9、ED)管帽（焊接）PIPE CAP (SCREWED)管帽（法兰）REDUCER变径管T-STRAINERT 型过滤器PERMANENT Y-STRAINER (WITH VALVE)带阀门 Y 型过滤器TEMPORARY STRAINER临时过滤器HOSE CONNECTION9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TRE
10、NCH地沟LINE IDENTIFICATION管线说明INSULATION CODE保温代码MATERIAL SPECIFICATION材质BRANCH IDENTIFIER分支标识SEQUENCE NUMBER10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DIAPHRAGM VALVE隔膜阀GLOBE VALVE球阀NEEDLE VALVE针型阀PLUG VALVE截止阀BALL VALVE球阀
11、CHECK VALVE止逆阀STOP CHECK VALVE(BOILER NON-RETURN VALVE)带手轮止逆阀THREE 0R FOUR VALVE11三通或四通阀MULTI 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 VALV
12、E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 ABBREVIATION合适的缩写SLIDE GATE VALVE滑动闸阀EQUIPMENT IDENTIFACATION设备符号12SUPPLIED 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
13、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PIPING SPECIALTY ITEMS AND MISCELLANEOUS 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 WEA
14、THER CAP13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EXPANSION 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
15、 WITH MONITOR带监视器的消防栓FIRE HYDRANT WITH PUPPER CONNECTION14消防栓HOSE HOUSE消防箱VALVE WITH INDICATOR POST带指示的阀MONITOR 监视器EM IF 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COMP
16、RESSOR压缩机15SINGLE STAGE RECIPROCATINGMULTI-STAGE RECIPROCATINGCENTRIFUGAL离心式ROTARY旋转式BLOWER FAN鼓风机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DIESEL ENGINE .ETC柴油发动机APPROPRIATE ABBREVIATION相应的缩写A AIR空气D DIESEL柴油16H HYDRAULIC水力的M ELECTRIC电气的 STEAM TURBINE
17、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 EXCHANGER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 G
18、ENERATORKETTLE TYPE EXCHANGER (PFD ONLY)17GRAPHITE BLOCK TYPE EXCHANGERPLATE EXCHANGERDRAWING IDENTIFICATION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 BAFFLE18VORTEX BRE
19、AKER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热管VESSEL ELEVATIONS离地面高度INSULATION CODE保温代码D ANTI-SWEAT INSULATION防水保温E ELECTRICAL TRACINGF FULL HEAT CONSERVATIONH NORMAL HEAT CONSERVATION一般保温M DUAL SERVICE INSULATIONP PERSONNEL PROTECTION防护
20、人员S SPECIAL特殊的T STEAM TRACINGV ACOUSTICAL听力的19BREAK OF RESPONSIBILITYSYMBOL FOR LOCATION OF TIE-IN POINT CONNECTEDU NEW ETHYLENE STORAGE AREA乙烯新区的V OSBL (ON NORTH SIDE RACK)W OSBL (ON MAIN RACK IN FRONT OF NEW HEATER)X OSBL (ON SOUTH SIDE RACK)Y OSBL (COOLING WATER)E EXISTING AREAD DPG AREAC4 C4 HYD
21、RO AREAD(W) DPG AREA AND THROUGH THE TIE-IN POINT(W) ON THE RACKC4(U) C4 HYDRO AREA AND THROUGH THE TIE-IN POINT(U) ON THE RACKE(W) EXISTING AREA AND THROUGH TIE-IN POINT(W) ON THE RACKE(X) EXISTING AREA AND THROUGH TIE-IN POINT(X) ON 20THE RACKGENERAL NOTES1. FOR INSTRUMENTATION SYMBOLS SEE DWG NO.
22、0005B仪表符号参阅图 DWG NO.0005B2. FLOW DIAGRAMS ARE DIAGRAMATIC ONLY 。 ROUTING OF PIPELINES MUST BE INVESTIGATED FOR VENTING OF HIGH POINTS OF PIPING AND DRAINING OF LOW POINTS OF PIPING AND EQUIPMENT . THESE POINTS ARE NOT NORMALLY SHOWN ON P&I FLOW DIAGRAM3. THE CONTROL VALVE ASSEMBLY WILL HAVE A 3/4 DR
23、AIN VALVE LOCATED ON THE UPSTREAM SIDE OF THE CONTROL VALVE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, AND MANIFOLDS ARE SHOWN TO 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 STRAINERS IN SUCTION LINES OF ALL PUMPS AND COMPRESS
24、OR 1 1/2 AND LARGER . YTYPE STRAINERS ARE TO BE PROVIDED IN SUCTION LINES 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 1 1/2或更小的管线上。216. TO ATM AT SAFE LOCATIONMEANS 3000mm ABOVE ANY PLATFORM OR STAIRWAY WITHIN AN 8000mm RADIUS.7. 9mm WEEP HOLE SHALL BE PROVIDED IN LOW POINTS OF RELIE
25、F 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 SHOWN ON PROCESS P&IDS. THESE SHOWN BE SHOWN AS REQUIRED ON DISTRIBUTION AND/OR UTILITY P&IDS DURING DETAILED DESIGN.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
26、 COOLING DETAILS TO BE PROVIDED BY DETAILED ENGINEERING CONTRACTOR. FOR SPECIAL REQUIREMENTS, SEE PUMP DATA SHEETS OR SCHEDULES.泵的密封和冷却系统由工程承包商提供，有特殊要求请查看泵的曲线和表。10. ALL ELEVATIONS SHOWN ARE PRELIMINARY, ELEVATIONS ARE TO BE FINALIZED DURING DETAILED ENGINEERING, TOWER AND DRUM ELEVATIONS ARE BASED O
27、N REBOILER HYDRAULICS OR PUMP NPSH REQUIRENENTS.11. BLOCK VALVES FOR ALL INSTRUMENTS SUCH AS PLPGLI AND LG ARE NOT INDICATED AND THESE BLOCK VALVESARE 3/4, IF NOT INDICATED.12. RUNNING SIGNALS FOR ALL MOTOR ARE NOT INDICATED. 22所有的马达运行信号不被显示。LINE DESIGATIONSCONNECTION TO PROCESS, MECHANICALLINE OR I
28、NSTRUMENT INPUTCAPILLARY TUBING(FILLED SYSTEM)PNEUMATIC SIGNALELECTRICAL SIGNAL ORSOFTWARE SIGNALHYDRAULIC (LIQOID) SIGNAL ELECTROMAGNETIC OR SONIC SIGNAL(INCLUDING RADIO WAVES, NUCLEAR RADIATION,HEAT AND LIGHT)INSTRUMENT AIR SUPPLYINSTRUMENT LINE PURGE*-PURGE MEDIUM(LINE SERVICE IDENTIFICATION OR A
29、S NOTED)23TEMPERATURE INSTRUMENTSSINGLE THERMOCOUPLE, RTD,GAUGE OR WELL,* - RTD (IF RESISTANCE TEMPERATURE DETECTOR)DUPLEX THERMOCOUPLEIN ONE WELLMULTI-ELEMENT THERMOCOUPLE FORDIFFERENT ELEVATIONS OR ZONES(INDICATE FIRST AND LAST TAGNUMBERS OR TAG NUMBER SUFFIXES)TEMPERATURE REGULATOR温度调节阀PRESSURE I
30、NSTRUMENTS压力调节器CONTROLLING SIDE24PRESSURE REDUCING REGULATOR-SELF-CONTAINEDPRESSURE REGULATOR WITH EXTERNAL PRESSURE TAPDEFFERENTIAL PRESSURE REDUCING WITH EXTERNAL AND EXTERNAL PRESSURE TAPSSAFETY RELIEF VALVEPRESSURE AND VACUUM SAFETYRELIEF VALVEPILOT OPERATED SAFETY RELIEF VALVERELIEVING MANHOLE
31、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25ORIFICE 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FLO
32、W STRAIGHTENING VANESEXTERNAL TYPE FLOW INSTRUMENT SPECIFY TYPEOUTSIDE BUBBLEIN-LINE FLOW INSTRUMENT SPECIFY TYPE OUTSIDE BUBBLELEVEL INSTRUMENTS液位计EXTERNAL LEVEL INSTRUMENT外部液位计（玻璃板、浮筒式）INTERNAL FLOAT TYPE LEVEL INSTRUMENT26浮筒式液位计BUBBLE TYPE LEVEL INSTRUMENTRADIATION OR SONIC LEVEL INSTRUMENTFLOAT
33、AND TAPE TYPE LEVEL INDICATOR OR TRANSMITTER FOR STORAGE TANKSOTHER LEVEL INSTRUMENTS SPECIFY TYPE OUTSIDE BUBBLE LEVEL REGULATOR WITH MECHANICAL LINKAGECONTROL VALVESGLOBE 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
34、 GLOBE三通球型调节阀FOUR WAY VALVE27四通调节阀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SOLENOID螺线管ELECTRO-HYDRAULICGAS MOTOR气动马达MANUAL HANDWHEEL手轮ACCESSORIESSIDE MOUNTED HANDWHEELMANUAL RESETREMOTE RESET28ADDITIONAL INFOR
35、MATIONBODY SIDE阀体尺寸BTS BUBBLE TIGHT SHUT-OFFTSO TIGHT SHUT-OFFAIR FAILURE POSITIONFO FAIL OPEN故障时打开FC FAIL CLOSE故障时关闭FL(O) FAIL LOCKED(LAST POSITION) VALVE OPENS ON DECREASING CONTROL SIGNALFL(C) FAIL LOCKED(LAST POSITION) VALVE CLOSES ON DECREASING CONTROL SIGNALSPLIT RANGE DESIGNATIONA FIRST VALVE
36、 TO RESPOND TO INCREASING CONTROL SIGNALB SECOND VALVE TO RESPOND TO INCREASING CONTROL SIGNALMISCELLANEOUS ITEMS29各种INLINE INSTRUMENTS在线仪表FLAME ARRESTORCONTINUOUS DRAINEROPTIONAL VENT LINEEXCESS FLOW VALVEPROCESS STEAM TRAPANALYZERANALYTICAL COMPONENT OR PHYSICAL PROPERTYPURGING DETAILDIAPHRAGM SEA
37、LSPIPED CONNECTIONFLUSH MOUNTEDTRACINGCONVENTIONAL INSTRUMENTATIONDIGITAL INSTRUMENTATION30PUSHBOTTON , SWITCHES & LIGHTSINDICATING LIGHTPUSHBOTTONPUSHBOTTON WITH LIGHTSWITCHSWITCH WITH LIGHT(LIGHT INCLUDED FOR EACH PUSHBUTTON FUNCTION)HIGH/LOW OPEN/CLOSELIGHT DESIGNATIONMEASURED VARIABLEFUNCTIONBYP BY PASSHOA HAND/OFF/AUTOMATICO/C OPEN/CLOSERESET
