常见的PID图例缩写符号

.

LINE

SERVICE

IDENTIFICATION

SYMBOL

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

PRESSURE

STEAM

高压蒸汽

MS

MEDIUM

PRESSURE

STEAM

中压蒸汽

LS

SUPERHEATED

LOW

PRESSURE

STEAM

过热低压蒸汽

PS

SATURATED

LOW

PRESSURE

STEAM

1 / 25

.

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

SYSTEMS

A

V

ATMOSPHERIC

VENT

(NOT

FROM

PSV)

通大气（不从安全阀）

SV

SAFETY

V

ALVE

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

GAS

SYSTEMS

气体系统

FG

FUEL

GAS

燃料气

HG

HYDROGEN

氢气

2 / 25

.

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

REFRIGERANT

SYSTEMS

BR

BINARY

REFRIGERANT

二元制冷

PR

PROPYLENE

REFRIGERANT

丙烯冷剂

WATER

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

3 / 25

.

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

WA

TER

废水

MISCELLANEOUS ABBREVIATION AND SERVICE

各种缩写和符号

A

AIR

MOTOR

空气马达

ACC

ACCESSIBLE

可接近的

ATM

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

4 / 25

SYMBOLS

.

DEC

DETAIL

ENGINEERING

CONTRACTOR

工程承包商详细资料

EOR

END

OF

RUN

运行结束

SOR

EW

EYEWASH

洗眼

FLG

FLANGE

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

FLOW

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

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

5 / 25

COOLER

.

疏水器

TSO

TIGHT

SHUT

OFF

密闭切断

UC

UTILITY

CONNECTION

公用工程接口

LINES

MAIN

LINE

主线

SECONDARY

LINE

副线

UNDERGROUND

OR

BURY

地下或隐藏

ELECTRICALLY

TRACED

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

6 / 25

.

BELOW

GROUND

LINE

RISING

ABOVE

GRADE

地管伸出点

BREAK

OF

REPONSIBILITY

责任分界点

MISCELLANEOUS

ITEMS

各种细节

ROD

OUT

CONNECTION

CLEAN

OUT

CONNECTION

(FLUSHING)

清理接口（冲洗）

REMOV

ABLE

SPOOL

可拆除短管

NOZZLE

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

B

B

图

REVERSIBLE

BLIND

8

字盲板

ORIFICE

SWAGE

孔板

INSULATED

FLANGED

JOINT

保温法兰连接

PIPE

CAP

(WELDED)

管帽（焊接）

PIPE

CAP

(SCREWED)

7 / 25

.

管帽（法兰）

REDUCER

变径管

T-STRAINER

T

型过滤器

PERMANENT

Y-STRAINER

(WITH

V

ALVE)

带阀门

Y

型过滤器

TEMPORARY

STRAINER

临时过滤器

HOSE CONNECTION

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

TRENCH

地沟

8 / 25

.

LINE

IDENTIFICATION

管线说明

INSULATION

CODE

保温代码

MATERIAL

SPECIFICATION

材质

BRANCH

IDENTIFIER

分支标识

SEQUENCE

NUMBER

管线号

PROCESS

SECTION

AREA(MAY

BE

工艺区

LINE

SERVICE

SYMBOL

管线符号说明

LINE

SIZE

管线尺寸

V

ALVES

GATE

V

ALVE

闸阀

BUTTERFLY

V

ALVE

蝶阀

DIAPHRAGM

V

ALVE

隔膜阀

GLOBE

V

ALVE

球阀

NEEDLE

V

ALVE

针型阀

PLUG

V

ALVE

截止阀

BALL

V

ALVE

9 / 25

SINGLE

DIGIT)

.

球阀

CHECK

V

ALVE

止逆阀

STOP

CHECK

V

ALVE(BOILER

NON-RETURN

V

ALVE)

带手轮止逆阀

THREE

0R

FOUR

V

ALVE

三通或四通阀

MULTI

PORT

PLUG

多向切断阀

ANGLE

V

ALVE

角阀

DUAL

TANDEM

BLOWNDOWN

V

ALVES

两段排污阀

RAN

TYPE

V

ALVE

R

型阀

T-TYPE

GLOBE

V

ALVE

T

型球阀

AUTOMATIC

RECIRCULATION

V

ALVE

自动再循环阀

INTERLOCKED

V

ALVES(MECHANICAL

LINK))

机械联动阀

QUICK

OPENING

OR

CLOSING

V

ALVE

快速开关阀

V

ALVE

WITH

BODY

CA

VITY

RELIEF

CONNECTION

带有排放阀的阀门

DAMPER

挡板

APPROPRIATE

ABBREVIATION

合适的缩写

10 / 25

OR

BODY

BLEED

.

SLIDE

GATE

V

ALVE

滑动闸阀

EQUIPMENT

IDENTIFACATION

设备符号

SUPPLIED

WITH

VENDOR

EQUIPMENT

供应商提供的设备

SPARE(A,B,C,ETC

USED

IF

PARALLEL

同一设备的编号

SEQUENCE

NUMBER

序列号

AREA

NUMBER

区号

EQUIPMENT

CODE

OF

ACCOUNT

设备代码

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

所有特殊管线有以下注明

SEQUENCE

NUMBER

(

NUMBERED

INSTRUMENT )

序列号（与仪表排序相同）

11 / 25

UNITS)

IDENTIFIED

IN

SAME

WAY

AS

.

EXHAUST

HEAD

负呀总管

ATOMPHERIC

VENT

WITH

WEATHER

CAP

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

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

WITH

MONITOR

带监视器的消防栓

12 / 25

DESUPER

HEATER