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1管道仪表流程图上的物料代号管道仪表流程图上的物料代号2.1分类物料代号用于管道编号，分为工艺物料代号及化学品、辅助物料和公用物料代号两类。2.2工艺物料代号缩写代号英文中文词义PProcessstream工艺物料(通用代号)PGProcessgas工艺气体PLProcessliquid工艺液体PSProcesssolid工艺固体2.3化学品、辅助物料和公用物料代号缩写代号英文中文词义AAir空气ACAcid酸、酸液ACGAcidilygas酸性气体ACLAcidilyliqiud酸性液体ACSAcidilysewage酸性污水ADAdditive添加剂AMAmmonia氨AMGGaseousammonia氨气(作制冷剂)AMLLiquidammonia液氨(作制冷剂)AMWAmmoniawater氨水BABlowingAir鼓风空气BDBlowdown排污BRBrine盐卤水2BWBoilerfeedwater锅炉给水CSteamycondensate水蒸汽凝液CACaustic碱、碱液CAGCausticgas碱性气体CALCausticliquid碱性液体CASCausticsewage碱性污水CATCatalyst催化剂CCACarriercatalystAir催化剂载运空气CDRChemicalDrain化学污水放净CHWChilledwater冷冻冷水(指0℃以上)CLChlorine氯CMChemicals化学品CNSCleansewage清净下水COCoolingoil冷油(冷却油)COOCarbondioxide二氧化碳CRSContaminatedrainandsewage污染下水(指污染的雨水、冲洗水、放净水、排水)CSWChilledsaltwater冷冻盐水(指0℃以下)CTMCoolingtransfermaterial冷载体CWCoolingwater冷却水CWRCoolingwaterreturn冷却水回水CWSCoolingwatersupply冷却水供水DAWDealkalizedwater脱碱水(用于除盐水系统)DEWDemineralizedwater除盐水(脱盐水)DFDryFlare干火炬排放气DRDrain排水、排液DWDomesticwater生活用水、饮用水EAExhaustair排出空气EREthane(orethylene)refrigerant乙烷(或乙烯)冷冻剂ESExhauststeam排出蒸汽FFlareexhaust火炬排放气FAFillingAir填充空气FGFuelgas燃料气FLGFluegas烟道气FLWFiltratedwater过滤水FOFueloil燃料油FOSFoamingsolution泡沫液FRFreonrefrigerant氟里昂冷冻剂FTFusedsalt熔盐FWFirewater消防水3GOGlandoil填料油GWGasedwater加气水、溶气水HHydrogen氢气HAHydrochloricacid盐酸HCHighpressurecondensate高压蒸汽凝液HFHotFlare热火炬排放气HOHeatingoil热油、加热油、热载油HSHighpressuresteam高压蒸汽HSSHighpressuresaturatedsteam高压饱和蒸汽HSUHighpressuresupersteam高压过热蒸汽HTMHeattransfermaterial热载体HWHotwater热水HWRHotwaterreturn热水回水(用于采暖、加热、空调等)HWSHotwatersupply热水给水(用于采暖、加热、空调等)HYLHydraulicliquid液压液体HYOHydraulicoil液压油HYWHydraulicwater液压水IAInstrumentair仪表空气ICWIntermadiatecoolingwater冷却水二次用水IDWIndustrialsnddomesticwater生产和生活用水IGInertgas惰性气体ISIndustrialsewage生产污水(泛指工艺过程产生的污水)IWIndustrialwater生产用水LCLowpressurecondensate低压蒸汽凝液LDLiquiddrain排液(泛指工艺排液)LOLubricatingoil润滑油LSLowpressuresteam低压蒸汽LSSLowpressuresaturatedsteam低压饱和蒸汽LSULowpressuresupersteam低压过热蒸汽MCMediumpressurecondensate中压蒸汽凝液MRMethanerefrigerant甲烷冷冻剂MSMediumpressuresteam中压蒸汽MSSMediumpressuresaturatedsteam中压饱和蒸汽MSUMediumpressuresupersteam中压过热蒸汽NNitrogen氮气4NGNaturalgas天然气OLOil油(泛指除原料外的油)OSOilysewage含油污水OXOxygen氧气PAPlantair工厂空气PCProcessCondensate工艺冷凝液PRPropane(orpropylene)refrigerant丙烷(或丙烯)冷冻剂PWPolishedwater精制水QOQuenchOil急冷油QWQuenchwater急冷水RRefrigerant冷冻剂、冷媒、制冷剂RAWRawwater原水RCSRainwaterandcleansewage雨水及清净下水(指清净的雨水、冲洗水、放净水、排水)RWRawwater雨水SSteam蒸汽SASulphuricacid硫酸SEWSeawater海水SFWSoftwater软水(软化水)SGStackGas烟道气SLSealingliquid密封液SOSealingoil密封油SSSanitarysewage生活污水STAStartingAir开车空气SUSludge,slurry污泥、泥浆SWSealingwater密封水TCTurbineCondensate透平凝液TWTreatedwastewater处理后的废(污)水TWFFiltrationTreatedWater过滤水TWPPurifiedTreatedWater澄清水VEVacuunexhaust真空排放气VGVentgas放(排)空气体WWater水WACWasteacid废酸WCAWastecaustic废碱WFWetFlare湿火炬排放气WGWastegas废气5WLWasteliquid废液WOWasteoil废油WSWastesolid废渣废水(各种污水统称)WWCChemicalWasteWater化学污水WWPProductionWasteWater生产污水WWSSanitaryWasteWater生活污水