工艺管线介质代号

工艺管线介质简称代号英文全称

AG AMMONIA（IMPORT）

AL ACID

AV ATMOSPHERIC VENT（NON PSV）

BA BREATHING AIR

BB BLOWDOWN（INTERMITTENT BOILER）

BL AMMONIA

BW HIGH PRESSURE BOILER FEED WATER

CA CONVEYING AIR

CB CONTINUOUS BLOWDOWN（BOILER）

CC CONTAMINATED CONDENSATE

CD CHEMICAL DRAIN

CG CHLORINE

CL CAUSTIC

DA DECOKING AIR

DF DRY FLARE

DS DILUTION STEAM

DW DOMESTIC WATER

ER ETHYLENE REFRIGERANT

FG FUEL GAS

FO FUEL OIL

GG NATURAL GAS

HC HIGH PRESSURE CONDENSATE

HG HYDROGEN GAS

HPN HIGH PRESSURE NITROGEN

HS HIGH PRESSURE STEAM

HW HOT WATER

HWF HIGH PRESSURE FIRE WATER

IA INSTRUMENT AIR

IL CHEMICAL INJECTION

IW INTERMEDIATE WATER

J JACKET

KW CHILLED WATER SUPPLY

LBW LOW PRESSURE BOILER FEED WATER

LC LOW PRESSURE CONDENSATE

LD LIQUID DRAIN TO FLARE

LF LOW PRESSURE FLARE

LLC LOW LOW PRESSURE CONDENSATE

LLS LOW LOW PRESSURE STEAM（DESUPERHEATED）

LO LUBRICATION OIL

LPN LOW PRESSURE NITROGEN 中文全称氨气（输入）酸放空（无安全阀）吸入空气放空（间歇锅炉）氨水高压锅炉给水输送空气连续排污（锅炉）污染

凝液化学品排放氯气碱液烧焦空气干火炬稀释蒸汽生活用水乙烯冷剂燃料气燃料油天然气高压凝液氢气高压氮气高压蒸汽热水高压消防水仪表空气化学品注入中间水加套冷冻水供低压锅炉给水低压凝液至火炬的液体排污低压火炬低低压凝液低低压蒸汽（脱过热）润滑油低压氮气LS LOW PRESSURE STEAM （DESUPERHEATED）

LSS LOW PRESSURE STEAM（SUPERHEATED）

LW CHILLED WATER RETURN

LWF LOW PRESSURE FIRE WATER

MC MEDIUM PRESSURE CONDENSATE

ML METHANOL

MO HOT OIL SUPPLY

MPN MEDUIM PRESSURE NITROOGEN

MS MEDUIM PRESSURE STEAM

ND NON-CONTAMINATED DRAIN

NF FLARE(MAIN)

NL LIQUID NITROGEN

NO HOT OIL RETURN

NR REFRIGERANT

NW INDUSTRIAL WATER

OD OILY DRAIN

P PROCESS(HYDROCARBONS)

PA PLANT AIR AND PROCESS AIR

PB PUMPOUTS

PC PROCESS CONDENSATE(STYRENICS) PCC PROCESS CLEAN CONDENSATE

PG PILOT GAS

PL PROPANOL

PR PROPYLNEN REFRIGERANT

PW PROESS WATER

QW QUENCH WATER

RW COOLING WATER RETNRN

SB SLOPS

SC SUPER HIGH PRESSURE CONDENSATE SD STORMWATER DRAIN

SLW SEAL WAER(COOL CONDENSATE) SO SEAL OIL

SS SUPER HIGH PRESSURE STEAM

SSD SOLVENT SLOP DRAIN

SV SAFETY VALVE TO ATMOSPHERE SW COOLING WATER SUPPLY

TC TURBINE CONDENSATE

TR EQUIPEMENT TRIM

TW TREATED WATER(DEMINERALIZED) UW UTILITY WATER

WF WET FLARE

WO WASH OIL/FLUSHING OIL

WW WASTE WATER

ZW ZEOLITE WATER 低压蒸汽（非过热）低压蒸汽（过热）冷冻回水低压消防水中压凝液甲醇热油供中压氮气中压蒸气无污染排放火炬（主要）液氮热油回制冷剂工业用水含油污水排放工艺（烃类）装置空气和工艺空气抽空工艺凝液（苯乙烯）工艺清洁凝液点火气丙醇丙稀冷剂工艺用水急冷水冷却回水污油超高压凝液雨水排放密封水（冷凝液）密封油超高压蒸汽溶剂溢出排放安全阀排放至大气冷却水供涡轮凝液设备TRIM 处理水（软化）公用工程用水湿火炬洗油/冲洗用油废水沸石水B

H

N

S Critical Linae Legend 关键管线图例

BOTH(Stress&Hydraulic)全部（应力和水压）Hydraulic 水压None 无Stress 应力Test Medium Legend 测试介质图例

A Pneumatic

F Fill

H Hydraulic

L Leak

N None

S Service

Project Defaults 项目默认

Personnel Protection Limit Temperature:

防烫极