PID圖例符號介紹

1、line service identification窗體底部symbol service 符號 幫助as air systems 空氣系統(tǒng)ia instrument air儀表風(fēng)pa plant air 工廠風(fēng)da 燒焦空氣steam and condensate systems蒸汽和凝液系統(tǒng)hc high pressure condensate 高壓蒸汽凝液mc medium pressure condensate 中壓蒸汽凝液lc low pressure condensate 低壓蒸汽凝液sc surface condensate 表面凝液ds dilution steam 稀釋蒸汽h

2、s high pressure sream 高壓蒸汽ms medium pressure steam 中壓蒸汽ls superheated low pressure steam過熱低壓蒸汽ps saturated low pressure steam 飽和低壓蒸汽shs super high pressure steam 超高壓蒸汽drain systems 排放系統(tǒng)cd chemical drain 化污ld liquid drain 液體排放nd non-contaminated pollution drain 無污染排放od oily drain油污exhaust and vent sy

3、stemsav atmospheric vent (not from psv) 通大氣（不從安全閥）sv safety valve to atmosphere 安全伐排大氣flare systems火炬系統(tǒng)df dry flare 干火炬 wf wet flare 濕火炬gas systems氣體系統(tǒng)fg fuel gas燃料氣hg hydrogen 氫氣ng nitrogen氮?dú)鈙pecial liquid systems特殊液體系統(tǒng)cl caustic腐蝕性qo quench oil急冷油so seal oil 密封油wo washing oil沖洗油（壓縮機(jī)）process servic

4、e (normal)p process 工藝refrigerant systemsbr binary refrigerant 二元制冷pr propylene refrigerant 丙烯冷劑water systems 水系統(tǒng)bfw boiler feed water鍋爐給水fw fire water消防水iw intermediate water二次水cwr cooling water return 冷卻水回水cws cooling water supply冷卻水pw polished water工藝水qw quench water急冷水uw utility water工業(yè)水ww waste

5、 water廢水miscellaneous abbreviation and service symbols各種縮寫和符號a air motor空氣馬達(dá)acc accessible可接近的 atm atmosphere大氣 bl battery limit界區(qū)bts bubble tight shut-off 緩慢緊密切斷bv by vendor 由供應(yīng)商提供conn connection連接csc car seal closed關(guān)閉鎖定cso car seal open打開鎖定dec detail engineering contractor工程承包商詳細(xì)資料 eor end of run

6、運(yùn)行結(jié)束sor star of run 運(yùn)行開始ew eyewash 洗眼flg flange法蘭lc locked closed鎖定關(guān)閉lo locked open鎖定打開nc normally closed正常情況下關(guān)閉nnf normally no flow正常情況下無流量no normally open 正常情況下打開s sample connection取樣點(diǎn)sc sample connection with cooler連接冷卻器的取樣點(diǎn)sor start of run開始運(yùn)行sr strainer過濾器ss safety shower安全噴淋t line drip trap疏水器

7、tso tight shut off密閉切斷uc utility connection公用工程接口linesmain line主線secondary line副線underground or bury地下或隱藏electrically traced電纜線special traced特殊管線steam traced蒸汽伴熱jacketed夾套packaged equip boundary成套設(shè)備分界線battery limit boundary界區(qū)分界線future未來material spec break材料規(guī)格分界點(diǎn)design break設(shè)計(jì)分界點(diǎn)below ground line ris

8、ing above grade地管伸出點(diǎn)break of reponsibility責(zé)任分界點(diǎn)miscellaneous items各種細(xì)節(jié)rod out connection連接桿clean out connection (flushing)清理接口（沖洗）removable spool可拆除短管nozzle or pipe with blind flange帶盲法蘭的噴嘴或管線spacer for blind盲管位置normally closed正常情況下關(guān)閉normally open正常情況下打開figure b b 圖reversible blind 8字盲板orifice swage

9、孔板insulated flanged joint保溫法蘭連接pipe cap (welded)管帽（焊接）pipe cap (screwed)管帽（法蘭）reducer變徑管t-strainert型過濾器permanent y-strainer (with valve)帶閥門y型過濾器temporary strainer臨時(shí)過濾器hose connection軟管接口sample connection取樣口*-service symbol符號說明sequence number序列號open drain hub敞口集液器material balance stream number物流號cont

10、inuty arrow延續(xù)箭頭initial feed初始進(jìn)料grade等級trench地溝line identification管線說明insulation code保溫代碼material specification材質(zhì)branch identifier分支標(biāo)識sequence number管線號process section area(may be single digit)工藝區(qū)line service symbol管線符號說明line size管線尺寸valvesgate valve閘閥butterfly valve蝶閥diaphragm valve隔膜閥globe valve球閥n

11、eedle valve針型閥plug valve截止閥ball valve球閥check valve止逆閥stop check valve(boiler non-return valve)帶手輪止逆閥three 0r four valve三通或四通閥multi port plug多向切斷閥angle valve角閥dual tandem blowndown valves兩段排污閥ran type valver型閥t-type globe valvet型球閥 automatic recirculation valve自動(dòng)再循環(huán)閥interlocked valves(mechanical link

12、)機(jī)械聯(lián)動(dòng)閥quick opening or closing valve快速開關(guān)閥valve with body cavity relief or body bleed connection帶有排放閥的閥門damper擋板 appropriate abbreviation合適的縮寫slide gate valve滑動(dòng)閘閥equipment identifacation設(shè)備符號supplied with vendor equipment供應(yīng)商提供的設(shè)備spare(a,b,c,etc used if parallel units)同一設(shè)備的編號sequence number序列號area numb

13、er區(qū)號equipment code of account設(shè)備代碼unit designation單元名稱e ethylene 乙烯h - dpg hydrogenation 汽油加氫u - utility & off site公用工程piping specialty items and miscellaneous equipment特殊管項(xiàng)和各種設(shè)備all piping specialty items are identified所有特殊管線有以下注明sequence number ( numbered in same way as instrument )序列號（與儀表排序相同）exhau

14、st head負(fù)壓總管atompheric vent with weather cap防雨放空管duplex strainer相同的過濾器permanent basket strainer提籃式過濾器flexible hose金屬軟管expansion joint膨脹節(jié)inline mixers or venturi type desuper heater內(nèi)嵌式混合器或文丘里型混合器silencer消音器ejector or eductor噴射器filter過濾器filter with hood帶罩過濾器condensate trap (non-process)凝液疏水器fire protec

15、tion 消防fire hydrant消防炮fire hydrant with monitor帶監(jiān)視器的消防栓fire hydrant with pupper connection消防栓hose house消防箱valve with indicator post帶指示的閥monitor 監(jiān)視器em if elevated如果提升pump泵centrifugal離心泵metering or reciprocating計(jì)量泵或往復(fù)式泵rotary gear ,screw 齒輪泵vertical sump pump立式污水泵vertical cannedpump (pfd only all type

16、s)泵liquid ring vacuum pump水環(huán)式真空泵compressor壓縮機(jī)single stage reciprocating單機(jī)往復(fù)式multi-stage reciprocating多級往復(fù)式centrifugal離心式rotary旋轉(zhuǎn)式blower fan鼓風(fēng)機(jī)blower (pfd only all types)鼓風(fēng)機(jī)compressor (pfd only)壓縮機(jī)screw螺桿式driver驅(qū)動(dòng)裝置electric motor 電動(dòng)馬達(dá)diesel engine .etc柴油發(fā)動(dòng)機(jī)appropriate abbreviation相應(yīng)的縮寫a air 空氣d diese

17、l 柴油h hydraulic 水力的m electric 電氣的 steam turbine蒸汽渦輪expander擴(kuò)大室heat exchanger換熱器shell and tube heat exchanger管殼式換熱器horizontal shell and tube heat exchanger水平式管殼式換熱器vertical shell and tube heat exchanger垂直式管殼式換熱器singel section double pipe exchanger單殼程雙管程換熱器two section double pipe exchanger雙殼程雙管程換熱器air

18、 cooler空冷器air cooler (pfd only)空冷器kettle type reboiler or steam generator釜式再沸器或蒸汽發(fā)生器kettle type exchanger (pfd only)釜式換熱器graphite block type exchanger石墨板式換熱器plate exchanger板式換熱器drawing identification圖形說明revision no.修訂號drawing no.圖號area no.區(qū)號job no.工號drawing sizevessels and furnaces容器和爐子floating roof

19、 tank浮頂罐cone roof tank with internal coil帶內(nèi)盤管錐型頂罐column柱型packing包裝internal bafflevortex breaker旋風(fēng)分離器cabin type heater with external cross-overshorizonal type heater with internal crossovers內(nèi)部有交叉的水平加熱管vessel elevations離地面高度insulation code保溫代碼d anti-sweat insulation 防水保溫e electrical tracingf full heat

20、 conservationh normal heat conservation 一般保溫m dual service insulationp personnel protection防護(hù)人員s special 特殊的t steam tracingv acoustical 聽力的break of responsibilitysymbol for location of tie-in point connectedu new ethylene storage area 乙烯新區(qū)的v osbl (on north side rack)w osbl (on main rack in front of

21、new heater)x osbl (on south side rack)y osbl (cooling water)e existing aread dpg areac4 c4 hydro aread(w) dpg area and through the tie-in point(w) on the rackc4(u) c4 hydro area and through the tie-in point(u) on the racke(w) existing area and through tie-in point(w) on the racke(x) existing area an

22、d through tie-in point(x) on the rackgeneral notes1. for instrumentation symbols see dwg no.0005b 儀表符號參閱圖dwg no.0005b2. flow diagrams are diagramatic only 。 routing of pipelines must be investigated for venting of high points of piping and draining of low points of piping and equipment . these point

23、s are not normally shown on p&i flow diagramthe control valve assembly will have a 3/4 drain valve located on the upstream side of the control valve在調(diào)節(jié)閥的上游應(yīng)有一個(gè)3/4英寸的就地排放閥。.vessel internals, furnace coils , headers, and manifolds are shown to the extent required for clarity.容器內(nèi)部、爐管等在必要的地方標(biāo)明。allowance

24、 is to be made for temporary strainers in suction lines of all pumps and compressor 1 1/2 and larger . ytype strainers are to be provided in suction lines 1 1/2 and smaller.在所有泵、壓縮機(jī)的吸入管線上均裝有1 1/2或更大的臨時(shí)過濾器，y型過濾器則被裝在1 1/2或更小的管線上。to atm at safe locationmeans 3000mm above any platform or stairway within

25、 an 8000mm radius.9mm weep hole shall be provided in low points of relief valve discharges venting to atmosphere.在排大氣閥的低點(diǎn)有一個(gè)9mm的孔來排出液體。battery limit or root valves are not necessarily shown on process p&ids. these shown be shown as required on distribution and/or utility p&ids during detailed design

26、.界區(qū)閥和根部閥在工藝流程圖中不一定有，但在公用工程的p&ids圖中會(huì)有詳細(xì)資料。pump seal flushes and cooling details to be provided by detailed engineering contractor. for special requirements, see pump data sheets or schedules.泵的密封和冷卻系統(tǒng)由工程承包商提供，有特殊要求請查看泵的曲線和表。10. all elevations shown are preliminary, elevations are to be finalized duri

27、ng detailed engineering, tower and drum elevations are based on reboiler hydraulics or pump npsh requirenents.11. block valves for all instruments such as plpgli and lg are not indicated and these block valves are 3/4, if not indicated.12. running signals for all motor are not indicated. 所有的馬達(dá)運(yùn)行信號不被

28、顯示。line desigationsconnection to process, mechanicalline or instrument inputcapillary tubing(filled system)pneumatic signalelectrical signal orsoftware signalhydraulic (liqoid) signal electromagnetic or sonic signal(including radio waves, nuclear radiation,heat and light)instrument air supplyinstrum

29、ent line purge*-purge medium(line service identification or as noted)temperature instrumentssingle thermocouple, rtd,gauge or well,* - rtd (if resistance temperature detector)duplex thermocouplein one wellmulti-element thermocouple fordifferent elevations or zones(indicate first and last tagnumbers

30、or tag number suffixes)temperature regulator溫度調(diào)節(jié)閥pressure instruments壓力調(diào)節(jié)器controlling sidepressure reducing regulator-self-containedpressure regulator with external pressure tapdefferential pressure reducing with external and external pressure tapssafety relief valvepressure and vacuum safetyrelief

31、valvepilot operated safety relief valverelieving manhole coverpressure or vacuum reliefset press設(shè)定壓力pressure relief rupture diskvacuum relief rupture diskflow instruments流量計(jì)orifice plate or restriction orifice孔板或限流孔o(hù)rifice plate in quick change fittingventurl flow tube or flow nozzle文丘里流量計(jì)或噴嘴inserti

32、on type flow instrument插入型流量計(jì)flumeweirroatmeter轉(zhuǎn)子流量計(jì)flow straightening vanesexternal type flow instrument specify typeoutside bubblein-line flow instrument specify type outside bubblelevel instruments液位計(jì)external level instrument外部液位計(jì)（玻璃板、浮筒式）internal float type level instrument浮筒式液位計(jì)bubble type leve

33、l instrumentradiation or sonic level instrumentfloat and tape type level indicator or transmitter for storage tanksother level instruments specify type outside bubble level regulator with mechanical linkagecontrol valves控制閥globe valve球閥 angle角閥butterfly蝶型ball. plug or disc球、塞子、圓盤diaphragm（saunders）隔

34、膜other （specify next to symbol）其他的（在下一個(gè)符號中詳細(xì)說明）three way globe三通球型調(diào)節(jié)閥four way valve四通調(diào)節(jié)閥actuators執(zhí)行機(jī)構(gòu)spring and diaphragm彈簧和隔膜differential diaphragm微分隔膜piston type - single actingpiston type - double actingelectric motor電動(dòng)馬達(dá)solenoid螺線管electro-hydraulicgas motor氣動(dòng)馬達(dá)manual handwheel手輪accessoriesside m

35、ounted handwheelmanual resetremote resetadditional informationbody side閥體尺寸bts bubble tight shut-offtso tight shut-offair failure positionfo fail open 故障時(shí)打開fc fail close 故障時(shí)關(guān)閉fl(o) fail locked(last position) valve opens on decreasing control signalfl(c) fail locked(last position) valve closes on decreasing control signalsplit range designationa first valve to respond to increasing control signalb second valve to respond to increasing co