施工图纸标注

P&ID

MAIN PROCESS LINE 主要工艺管线

Process line or utility line 工艺线或者设备线 Underground line

地下线路 Traced line 追踪线

jacketed line 夹套管线

sloped line 倾斜线

gate valve 闸阀

globe valve ball valve 球阀、球形阀

needle valve 针阀、针型阀

check valve

butterfly valve

angle valve 角阀

three way ball valve 三通球阀

foot valve 底阀、脚踩阀

damper 阻尼器、减震器、气阀

three way damper 三路阻尼 concentric reducer 同心异径管

eccentric reducer (bottom flat) eccentric reducer (top flat)

flange 法兰

reduced flange 异径法兰 welded cap 焊接管封头

screwed cap 螺帽、螺母

hose connection 软管接头、软管连接 blind flange 盲板、堵塞法兰

sample nozzle 释义采样喷嘴

sight glass

观察孔、窥镜

handhole

手孔

manhole 检修孔

funnel 漏斗、烟囱、成漏斗形

open drain or ditch 明渠或沟

eye washer

洗眼器、洗眼站

shower 淋浴、下阵雨

bellow type expansion joint

flame arrester 灭火器

M.H

S G H.H

flexible tube & hose

safety valve 安全阀

rupture disk

restriction orifice 节流孔板

spectacle blind 带双圈的盲板、眼圈盲板

sight glass

观察孔、窥镜

spray nozzle 喷雾嘴、喷嘴

t-type strainer

T 型滤管

y-type strainer Y 型滤管

bucket type strainer 筒式过滤器

steam trap 疏水器、疏水阀

temporary strainer 临时粗滤器

breather valve

呼吸阀、通气阀

air form chamber 空气形成室

accumulator 蓄电池、储压器 emergency vent hatch 紧急通风舱口

internal system link(software or data link) 内部系统链接(软管或数据链接)

instrument supply or connection to process 仪器供应或过程连接 instrumentation link(pneumatic) 仪表连接(气动的、气力的、呼吸的) instrumentation link(capillary) 毛细管、微血管 instrumentation link(electric signal) 电信号 ps ：pressure switch 压力开关、压力继电器 ls ：level switch 电平开关、液位开关 fs ：flow switch 流量开关、气流换向器 xs ：miscelaneous switch 显示上的多项开关 electro-pneumatic converter 电气动转换器 diaphragm seal 胶片密封、密封片

local mounted instrument 就地安装仪器

distributed control system instrument 分布式控制系统仪表 safety instrumented system instrument 安装仪器系统仪表 control panel mounted instrument 控制面板安装仪器 local board mounted instrument 地板安装仪表

DCS instrument with alarm

带报警器的DCS Denotes high-high level

Locally mounted transmitter 安装发射机

Measuring point of temperature

测量点的温度

Vortex flowmeter 漩涡流量计

Turbine or propeller type flow element

Electro magnetic type flowmeter 电磁式流量计

Thermal mass flowmeter 热式流量计

Coriolis mass flowmeter

Positive displacement type flow element

Pitot tube flowmeter

Rotameter 转子流量计

Orifice (corner taps)

Orifice (flange taps) (

Orifice (D-D/2 radius taps)

HH H L LL