工艺管线介质代号

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）

AL ACID酸

AV ATMOSPHERIC VENT（NON PSV）放空（无安全阀）

BA BREATHING AIR吸入空气

BB BLOWDOWN（INTERMITTENT BOILER）放空（间歇锅炉）

BL AMMONIA 氨水

BW HIGH PRESSURE BOILER FEED WATER高压锅炉给水

CA CONVEYING AIR输送空气

CB CONTINUOUS BLOWDOWN（BOILER）连续排污（锅炉）

CC CONTAMINATED CONDENSATE污染凝液

CD CHEMICAL DRAIN化学品排放

CG CHLORINE氯气

CL CAUSTIC碱液

DA DECOKING AIR烧焦空气

DF DRY FLARE干火炬

DS DILUTION STEAM稀释蒸汽

DW DOMESTIC WATER生活用水

ER ETHYLENE REFRIGERANT乙烯冷剂

FG FUEL GAS燃料气

FO FUEL OIL燃料油

GG NATURAL GAS天然气

HC HIGH PRESSURE CONDENSATE高压凝液

HG HYDROGEN GAS氢气

HPN HIGH PRESSURE NITROGEN高压氮气

HS HIGH PRESSURE STEAM高压蒸汽

HW HOT WATER热水

HWF HIGH PRESSURE FIRE WATER高压消防水

IA INSTRUMENT AIR仪表空气

IL CHEMICAL INJECTION化学品注入

IW INTERMEDIATE WATER中间水

J JACKET加套

KW CHILLED WATER SUPPLY冷冻水供

LBW LOW PRESSURE BOILER FEED WATER低压锅炉给水

LC LOW PRESSURE CONDENSATE低压凝液

LD LIQUID DRAIN TO FLARE至火炬的液体排污

LF LOW PRESSURE FLARE低压火炬

LLC LOW LOW PRESSURE CONDENSATE低低压凝液

LLS LOW LOW PRESSURE STEAM（DESUPERHEATED）低低压蒸汽（脱过热过热）LO LUBRICATION OIL润滑油

LPN LOW PRESSURE NITROGEN低压氮气

LS LOW PRESSURE STEAM（DESUPERHEATED）低压蒸汽（非过热）LSS LOW PRESSURE STEAM（SUPERHEATED）低压蒸汽（过热）LW CHILLED WATER RETURN冷冻回水

LWF LOW PRESSURE FIRE WATER低压消防水

MC MEDIUM PRESSURE CONDENSATE中压凝液

ML METHANOL甲醇

MO HOT OIL SUPPLY热油供

MPN MEDUIM PRESSURE NITROOGEN中压氮气

MS MEDUIM PRESSURE STEAM中压蒸气

ND NON-CONTAMINATED DRAIN无污染排放

NF FLARE(MAIN)火炬（主要）

NL LIQUID NITROGEN液氮

NO HOT OIL RETURN热油回

NR REFRIGERANT制冷剂

NW INDUSTRIAL WATER工业用水

OD OILY DRAIN 含油污水排放

P PROCESS(HYDROCARBONS)工艺（烃类）

PA PLANT AIR AND PROCESS AIR装置空气和工艺空气PB PUMPOUTS抽空

PC PROCESS CONDENSATE(STYRENICS)工艺凝液（苯乙烯）PCC PROCESS CLEAN CONDENSATE工艺清洁凝液

PG PILOT GAS点火气

PL PROPANOL丙醇

PR PROPYLNEN REFRIGERANT丙稀冷剂

PW PROESS WATER工艺用水

QW QUENCH WATER急冷水

RW COOLING WATER RETNRN冷却回水

SB SLOPS污油

SC SUPER HIGH PRESSURE CONDENSATE超高压凝液

SD STORMWATER DRAIN雨水排放

SLW SEAL WAER(COOL CONDENSATE)密封水（冷凝液）SO SEAL OIL 密封油

SS SUPER HIGH PRESSURE STEAM超高压蒸汽

SSD SOLVENT SLOP DRAIN溶剂溢出排放

SV SAFETY VALVE TO ATMOSPHERE安全阀排放至大气SW COOLING WATER SUPPLY冷却水供

TC TURBINE CONDENSATE涡轮凝液

TR EQUIPEMENT TRIM设备TRIM

TW TREATED WATER(DEMINERALIZED)处理水（软化）

UW UTILITY WATER 公用工程用水

WF WET FLARE 湿火炬

WO WASH OIL/FLUSHING OIL洗油/冲洗用油

WW WASTE WATER 废水