CENTRIFUGAL FAN风扇(离心风机)
CENTRIFUGAL PUMP离心泵
2、FLUID物料代号
P：PROCESS 工艺物料(包括聚合物)
V：VENT OR FLARE 排气、排空成火炬气
LS：LOW PRESSURE STEAM 低压蒸汽
MS：MEDIUM PRESSURE STEAM中压蒸汽
HS：MEDIUM PRESSURE STEAM高压蒸汽
SC：STEAM CONDENSATE 蒸汽凝液
CWS：COOLING WATER SUPPLY 冷却水供水
CWR：COOLING WATER RETURN 冷却水回水
HWS：HOT WATER SUPPLY 热水供水
HWR：HOT WATER RETURN热水回水
DW：DEMINERALIZED WATER脱盐水
PW：FRESH WATER 新鲜水，工艺水
FW：FIRE FIGHTING WATER 消防水
PA：PLANT AIR 工厂空气
IA：INSTRUMENT AIR仪表空气
N：NITROGEN,PURGE NITROGEN氮气，冲洗氮气
Nd：PROCESS NITROGEN 工艺氮气，输送氮气
A：CONVEYING AIR,PURGE AIR输送空气，冲洗空气
W：WASH WATER冲洗水
WW：WASTE WATER废水
3、EQUIPMENT ABBREVIATIONS设备代号
TK：SILO，BIN 料仓
E：COOLER,HEAT EXCHANGER冷却器、换热器类
R：REACTOR反应器类
K：TANK槽，罐类
P：PUMP泵类
C：BLOWER,COMPRESSOR,FAN压缩机，鼓风机类
RF：ROTARY VALVE旋转阀
HV：DIVERTER VALVE换向阀
SV：SLIDE VALVE滑板阀
F：GUARD FILTER,BAG FILTER过滤器
Y：ELUTRIATOR,CYCLONE淘洗器，旋风分离器
MP：FEEDING SHOE在线喷射器(加料室)
X：OTHER EQUIPMENT其它设备
4、EQUIPMENT NUMBERING设备位号
举例：C-8001A/B/C......
[C]：EQUIPMENT CLASSIFICATION设备类型代号
[80]：UNIT IDENTIFICATION单元号
[01]：EQUIPMENT NUMBER设备顺序号
[A/B/C]：INDICATES SPARED/PARALLEL DUTY并联及备用
5、INSULATION LEGEND保温代号
HC：HEAT CONSERVATION INSULATION保温
ST：STEAM TRACING INSULATION蒸汽伴热
HWT：HOT WATER TRACING INSULATION热水伴热
ET：ELECTRIC TRACING INSULATION电伴热
C：REFRIGERATION INSULATION保冷
PP：PERSONNEL PROTECTION INSULATION人身防护
NC：mACOUSTIC INSULATION隔音
H：HEAT CONSERVATION INSULATION保温
C：REFRIGERATION INSULATION保冷
P：PERSONNEL PROTECTION人身防护
N：ACOUSTIC INSULATION隔音
E：ELECTRIC TRACING INSULATION电伴热
6、GENERAL NOTE说明
①SAFETY RELIEF DEVICE COMMENTS:
DISCHARGE PIPING FROM SAFETY RELIEF DEVICE SHALL BE DESIGNED TO WITHSTAND FORCES CREATED DURING DISCHARGE.
ROUTE DISCHARGE LINE TO A SAFE LOCATION.FOR LINES DIRECTED UPWARD TO THE ATMOSPHERE,DISCHARGE 3.5 METERS MINIMUM ABOVE NEAREST OPERATING LEVEL,AND PROVIDED A 9.5 mm WEEP HOLE AT THE LOW POINT.
THE USE OF REDUCED PORT VALVES ON THE INLET SIDE OF SAFETY RELIEF DEVICE IS TO BE AVOIDED.FULL PORT VALVES ARE RECOMMENDED.
VALVES IN THE INLET AND OUTLET PIPING TO BE CAR SEALED OPEN(CSO) UNLESS OTHERWISE NOTED.
安全泄放阀建议：
安全泄放阀，出口管要考虑泄放时产生的推力。
出口管垂直向上排放至安全位置，排放口高度至少距最近操作平台3.5m以上。管子低点开9.5mm泪孔。
安全泄放阀入口端避免使用缩径阀，建议使用全通径阀。
安全阀进出口阀应铅封开，除非另有说明。
②UNLESS OTHERWISE NOTED,THE FOLLOWING COMMENTS APPLY TO ALL VENTS AND DRAINS:
VALVES ARE TO FOLLOW THE ASSOCIATED PIPING OR EQUIPMENT VALVE AND PIPING SPECIFICATION.OPEN END VALVES ASSOCIATED WITH PIPING ARE TO BE 3/4”OR LINE SIZE,WHICHEVER IS SMALLER.OPEN END VALVES ASSOCIATED WITH EQUIPMENT ARE TO BE NOZZLE SIZE.OPEN END VALVES ARE TO BE EQUIPPED WITH PLUGS OR BLIND FLANGES THAT ARE CHAINED TO THEVALVE BODY.
除非说明，下列建议适用于所有放空或导净阀：放空阀和导净阀的等级应与主管道或设备一致，阀门的尺寸为3/4”或者等于管线尺寸，取其小者，与设备相接的阀门与管接口尺寸一致，阀门要装上丝堵或者法兰盖。
③UNLESS OTHERWISE NOTED,ALL PROCESS VALVES USED AS INSTRUMENT TAKEOFFS FROM.PIPING,DESIGNATED AS GV OR BV,SHOULD BE:
-1/2"IF THE PROCESS LINE IS.1/2”
-3/4"IF THE PROCESS LINE IS 3/4”OR GREATER
除非说明，所有仪表从工艺管引出，切断阀使用闸阀或球阀：
1/2”：工艺管1/2”
3/4”：工艺管≥3/4
7、INSTRUMENTATION仪表图例符号
P&ID图中的仪表图例及符号是仪表工应知应会知识，为此昌晖仪表在文章《轻松看懂P&ID图中的仪表图例符号》专门介绍。
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