工艺管线介质简称
代号英文全称中文全称
AG AMMONIA（IMPORT）氨气（输入）A
L ACID酸
A
V ATMOSPHERIC VENT（NON PSV）放空（无安全阀）B
A BREATHING AIR吸入空气
B
B BLOWDOWN（INTERMITTENT BOILER）放空（间歇锅炉）
B
L AMMONIA 氨水
B
W HIGH PRESSURE BOILER FEED WATER高压锅炉给水C
A CONVEYING AIR输送空气
C
B CONTINUOUS BLOWDOWN（BOILER）连续排污（锅炉）
C
C CONTAMINATE
D CONDENSATE污染凝液
C
D CHEMICAL DRAIN化学品排放
C
G CHLORINE氯气
C
L CAUSTIC碱液
D
A DECOKING AIR烧焦空气
D
F DRY FLARE干火炬
D
S DILUTION STEAM稀释蒸汽
D
W DOMESTIC WATER生活用水
E
R ETHYLENE REFRIGERANT乙烯冷剂
F
G FUEL GAS燃料气
F
O FUEL OIL燃料油
G
G NATURAL GAS天然气
C HIGH PRESSURE CONDENSATE高压凝液
H
G HYDROGEN GAS氢气
H
PN HIGH PRESSURE NITROGEN高压氮气H
S HIGH PRESSURE STEAM高压蒸汽
H
W HOT WATER热水
H
WF HIGH PRESSURE FIRE WATER高压消防水I
A INSTRUMENT AIR仪表空气
I
L CHEMICAL INJECTION化学品注入
I
W INTERMEDIATE WATER中间水
J JACKET加套
K
W CHILLED WATER SUPPLY冷冻水供
L
BW LOW PRESSURE BOILER FEED WATER低压锅炉给水L
C LOW PRESSURE CONDENSATE低压凝液
L
D LIQUID DRAIN TO FLARE至火炬的液体排污
L
F LOW PRESSURE FLARE低压火炬
L
LC LOW LOW PRESSURE CONDENSATE低低压凝液L
LS LOW LOW PRESSURE STEAM（DESUPERHEATED）低低压蒸汽（脱过热过热）L
O LUBRICATION OIL润滑油
L
PN LOW PRESSURE NITROGEN低压氮气L
S LOW PRESSURE STEAM（DESUPERHEATED）低压蒸汽（非过热）L
SS LOW PRESSURE STEAM（SUPERHEATED）低压蒸汽（过热）L
W CHILLED WATER RETURN冷冻回水
L LOW PRESSURE FIRE WATER低压消防水
M
C MEDIUM PRESSURE CONDENSATE中压凝液
M
L METHANOL甲醇
M
O HOT OIL SUPPLY热油供
M
PN MEDUIM PRESSURE NITROOGEN中压氮气M
S MEDUIM PRESSURE STEAM中压蒸气
N
D NON-CONTAMINATED DRAIN无污染排放
N
F FLARE(MAIN)火炬（主要）
N
L LIQUID NITROGEN液氮
N
O HOT OIL RETURN热油回
N
R REFRIGERANT制冷剂
N
W INDUSTRIAL WATER工业用水
O
D OILY DRAIN 含油污水排放
P PROCESS(HYDROCARBONS)工艺（烃类）P
A PLANT AIR AND PROCESS AIR装置空气和工艺空气
P
B PUMPOUTS抽空
P
C PROCESS CONDENSATE(STYRENICS)工艺凝液（苯乙烯）
P
CC PROCESS CLEAN CONDENSATE工艺清洁凝液P
G PILOT GAS点火气
P
L PROPANOL丙醇
P
R PROPYLNEN REFRIGERANT丙稀冷剂
P
W PROESS WATER工艺用水
Q
W QUENCH WATER急冷水
W COOLING WATER RETNRN冷却回水
S
B SLOPS污油
S
C SUPER HIGH PRESSURE CONDENSATE超高压凝液
S
D STORMWATER DRAIN雨水排放
S
LW SEAL WAER(COOL CONDENSATE)密封水（冷凝液）S
O SEAL OIL 密封油
S
S SUPER HIGH PRESSURE STEAM超高压蒸汽S
SD SOLVENT SLOP DRAIN溶剂溢出排放S
V SAFETY VALVE TO ATMOSPHERE安全阀排放至大气S
W COOLING WATER SUPPLY冷却水供
T
C TURBINE CONDENSATE涡轮凝液
T
R EQUIPEMENT TRIM设备TRIM
T
W TREATED WATER(DEMINERALIZED)处理水（软化）U
W UTILITY WATER 公用工程用水W
F WET FLARE 湿火炬
W
O WASH OIL/FLUSHING OIL洗油/冲洗用油W
W WASTE WATER 废水
Z
W ZEOLITE WATER沸石水
Critical Linae Legend 关键管线图例
B BOTH(Stress&Hydraulic)全部（应力和水压）
H Hydraulic 水压N None无S Stress 应力
