常用仪表图例及缩写

By adding an actuator to the basic valve symbol ,the valve becomes a control valve .

Gate valve闸阀V-1 Plug valve阻塞阀 Butterfly valve or damper 蝶阀或节气闸V-7Ram valve冲击阀 球形阀 Globe valveV-2Blowdown valve吹扫阀 Check valve止回阀V-4Diaphragm valve薄膜阀Ball valve球阀Angle valve角阀V-3 Hand controlvalve手动控制阀V-5 Stop check valve断流止回阀V-8Three way valve三通阀Needle valve针阀Slide valve滑阀 Other valves

Four way valve四通阀Disc valve隔膜阀Indicated proper abbreviation under valve, example

2-6″-WB-134-J1B7-FHC-1．5″

UNIT NUMBER单元编号 LINE SIZE管线尺寸 SERVICE SYMBOL用途符号 LINE NUMBER管线编号 PIPING SERVICE SPECIFICATION管道用途描述

TYPE OF INSULATION OR TRACING绝缘类型或保温 LINE INSULATION THICKNESS管道保温厚度

INSULATION CODE保温代号

FCC Full cold conservation完全保持冷却 FHC Full heat conservation完全保持伴热 PHC Partial heat conservation局部保持伴热 PP Personnel protection个人防护 NI No insulation无保温

ST Steam traced and insulated蒸汽伴热 ET Electric traced and insulated电伴热

INSTRUMENT NUMBERING PHILOSOPHY X--XX--XXX—X

Multiple instrument designator多种仪表指示 Loop number/Intrument tag回路编号或仪表位号 Section number/Intrument code

表代号

区域编号或仪

Train number顺序编号

PIPING SYMBOLS管道符号

silencer消音器filter过滤器slopeothersge Downword slope下斜Pipe specification limit管线规格界限 Strainghtening vane矫正器具Open drain敞口排放 Closed drain funnel密闭排放漏斗 Open funnel敞口漏斗

E-5E-2E-1DRSpectacle blind install donut in line管道上安装的开位置肓板 Pipe size reduction管径尺寸缩小E-4Spectacle blind install donut in line管道上安装的关位置肓板

Flame arrester 防火装置

H Hose connection软管连接 Temporary strainer临时过滤器 Basket strainer篮式过滤器 Y-type strainer Y型过滤器 Expansion joint 膨胀接合处E1Hamer Blind肓板S Sample Connection取样连接STXXXXSteam Trap 蒸汽汽水阀Piping Engineered Item管道工程单位 Steam Desuperheater蒸汽减温器

GENERAL概述

Vortex breaker 涡流断路器Grade 平面Mesh-Type Mist Eliminator 网状除雾器Note Reference Symbol 注释参照符号Horizontial Vane-Type Mist Eliminator 水平叶片型除雾器

Packed Section 整个区域LINE SYMBOLS管道符号

Primary Process Line 主工艺管道Secondary Process Line次工艺管道Jacketed Pipe 套管Existing OR Future Line现有或将有的管道Flexible Host 柔性软管Underground Line 地下管道Internal Signal(software or data link) 内部信号（软件或数据连接） Instrument Pneumatic Line仪表气源管线 Instrument Capillary Tubing仪表毛细管Hydraulic Signal 水压信号Electromagnetic,Sonic,,Optical Or Radioactive Signal电磁、声波、光学或辐射信号Heat Traced Line 伴热管线Electrical Signal 电信号

ABBRIVATIONS缩写

AG—Above Ground 地面 HP—Horse Power Or Highpressor马达或高压 ATM—Atmosphere 大气 H.PT—High Point 高点

BF—Blind Flange 肓法兰 IAC—Insulation Acoustic隔音 BHP—Brake Horse Power马达闸 LC—Lock Closed 锁定关 BL—Battery Limit 电池限额 LO—Lock Open 锁定开 BW—Backwash 逆流 LH—Lock Hopper 锁斗 CC—Chemical Clean化学清洗 LP—Low Pressure 低压 CH OP—Chain Operated连续运转 L,PT—Low Point 低点 CP—Corrosion Probe 防腐蚀探测器

M—Motor Or Motorized Actuator电动机或电动执行器

CSC—Car Seal Closed 气缸密封关 MW—Manway人行道

CSC—Car Seal Open 气缸密封开 NC—Normally Closed常闭

D—Drain 排放 NDE—Normally Deenergized正常不带电 DE—Deenergized 不带电 NE—Normally Energized正常带电 E—Energized 带电 NNF—Normally No Flow正常无流量 (E)—Existing 当前的 NO—Normally Open常开

(F)—Furnished 供应 PD—Positive Displacement实际置换

F＆P--Furnished＆piped供应或管道传输 PV—Process Variable进程变量 FC—Fail Closed 故障关 S—Sample Connection取样连接 FI—Fail Indeterminate 不确定故障 SP.GR.—Specific Gravity特殊引力 FL—Fail Locked 故障锁定 SO—Steam Out蒸汽排出 FO—Fail Open Or First Out故障开或首次输出 SOV—Solenoid Operated Valve电磁阀

FOB—Flat On Bottom 底部平面 SP—Set Point设定点 FOT—Flat On Top 顶部平面 SR—Stress Relieve减压 FP—Full Port 整个端口 ST—Steam Trap蒸汽汽水阀 FV—Full Vacuum 完全真空 TSO—Tight Shut-off完全切断 GE—General Electric Gasification Process常规电气化程序

GO—Gear Operated 齿轮传动 T/T—Tangent To Tangent相互接触 HH—Hand hole 人孔 UG—Underground地下的 HS-=-Hydraulic Supply 供水 V—Vent出口

VV—Vent Valve 排放阀 VB—Vortex Breaker涡流断路器 VP—Vee Port V型端口 Commodity codes通常代码

Air 空气 LN—Low Presure Nitrogen低压氮气 BD—Blow Down 吹扫 LS—Low Presure Steam低压蒸汽 BF—Bioler Feed Water 锅炉给水 LWS—Limestone Water Supply灰水给水 BW—Black Water 黑水 MN—Medium Presure Nitrogen中压氮气 CW—Cooling Water Supply 冷却给水 MS—Medium Presure Steam中压蒸汽 CWR—Cooling Water Return 冷却水循环 NG—Natural Gas大气

CWS—Coal Water Supply水煤浆 OG—Oxygen Gas氧气 DR—Drainage 排水装置

PG—Process Gas(syngas or purified gas)工艺气(合成气或净化气) DW—Demineralized Water 脱盐水 S—Solid Sulphur硫磺

FEG—Fuel Gas 燃料气 SC—Steam Condensate蒸汽冷凝水 FL—Gas To Flare气体去燃烧 SSC—Shift Condensate冷凝置换 FLG—Flash Gas 闪蒸气 SW—Soft Water软水 FO—Fuel Oil 燃油 VT—Vent Gas排放气 FW—Fresh Water 新鲜水 WS—Slag Water渣水 GW—Grey Water 灰水

XSC—Mix Liquid Of Shift Condensate And Denmineral Water Or Others 冷凝物混合液和脱盐水或其它

HN—High Presure Nitrogen 高压氮气 HS—High Presure Steam高压蒸汽 HW—Heating Water Supply 热水 HWR—Heating Water Return热水循环 IA—Instrument Air仪表空气