PID图例符号介绍.doc

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1、窗体顶部LINESERVICEIDENTIFICATION窗体底部SYMBOLSERVICE符号帮助AIRSYSTEMS空气系统IAINSTRUMENTAIR仪表风PAPLANTAIR工厂风DA烧焦空气STEAMANDCONDENSATESYSTEMS蒸汽和凝液系统HCHIGHPRESSURECONDENSATE高压蒸汽凝液MCMEDIUMPRESSURECONDENSATE中压蒸汽凝液LCLOWPRESSURECONDENSATE低压蒸汽凝液SCSURFACECONDENSATE表面凝液DSDILUTIONSTEAM

2、稀释蒸汽HSHIGHPRESSURESREAM高压蒸汽MSMEDIUMPRESSURESTEAM中压蒸汽LSSUPERHEATEDLOWPRESSURESTEAM过热低压蒸汽PSSATURATEDLOWPRESSURESTEAM饱和低压蒸汽SHSSUPERHIGHPRESSURESTEAM超高压蒸汽DRAINSYSTEMS排放系统CDCHEMICALDRAIN化污LDLIQUIDDRAIN液体排放NDNON-CONTAMINATEDPOLLUTIONDRAIN22无污染排放ODOILYDRAIN油污EXHAUSTAND

3、VENTSYSTEMSAVATMOSPHERICVENT(NOTFROMPSV)通大气（不从安全阀）SVSAFETYVALVETOATMOSPHERE安全伐排大气FLARESYSTEMS火炬系统DFDRYFLARE干火炬WFWETFLARE湿火炬GASSYSTEMS气体系统FGFUELGAS燃料气HGHYDROGEN氢气NGNITROGEN氮气SPECIALLIQUIDSYSTEMS特殊液体系统CLCAUSTIC腐蚀性QOQUENCHOIL急冷油SOSEALOIL密封油WOWASHINGOIL冲洗油（压缩机）PROCE

4、SSSERVICE(NORMAL)PPROCESS工艺REFRIGERANTSYSTEMSBRBINARYREFRIGERANT二元制冷PRPROPYLENEREFRIGERANT22丙烯冷剂WATERSYSTEMS水系统BFWBOILERFEEDWATER锅炉给水FWFIREWATER消防水IWINTERMEDIATEWATER二次水CWRCOOLINGWATERRETURN冷却水回水CWSCOOLINGWATERSUPPLY冷却水PWPOLISHEDWATER工艺水QWQUENCHWATER急冷水UWUTILITY

5、WATER工业水WWWASTEWATER废水MISCELLANEOUSABBREVIATIONANDSERVICESYMBOLS各种缩写和符号AAIRMOTOR空气马达ACCACCESSIBLE可接近的ATMATMOSPHERE大气BLBATTERYLIMIT界区BTSBUBBLETIGHTSHUT-OFF缓慢紧密切断BVBYVENDOR由供应商提供22CONNCONNECTION连接CSCCARSEALCLOSED关闭锁定CSOCARSEALOPEN打开锁定DECDETAILENGINEERINGCONTRACTOR

6、工程承包商详细资料EORENDOFRUN运行结束SOREWEYEWASH洗眼FLGFLANGE法兰LCLOCKEDCLOSED锁定关闭LOLOCKEDOPEN锁定打开NCNORMALLYCLOSED正常情况下关闭NNFNORMALLYNOFLOW正常情况下无流量NONORMALLYOPEN正常情况下打开SSAMPLECONNECTION取样点SCSAMPLECONNECTIONWITHCOOLER连接冷却器的取样点SORSTARTOFRUN开始运行SRSTRAINER过滤器SSSAFETYSHOWER安全喷淋TLINE

7、DRIPTRAP疏水器TSOTIGHTSHUTOFF密闭切断UCUTILITYCONNECTION公用工程接口22LINESMAINLINE主线SECONDARYLINE副线UNDERGROUNDORBURY地下或隐藏ELECTRICALLYTRACED电缆线SPECIALTRACED特殊管线STEAMTRACED蒸汽伴热JACKETED夹套PACKAGEDEQUIPBOUNDARY成套设备分界线BATTERYLIMITBOUNDARY界区分界线FUTURE未来MATERIALSPECBREAK材料规格分界点DESIG

8、NBREAK设计分界点BELOWGROUNDLINERISINGABOVEGRADE地管伸出点BREAKOFREPONSIBILITY责任分界点MISCELLANEOUSITEMS各种细节RODOUTCONNECTIONCLEANOUTCONNECTION(FLUSHING)清理接口（冲洗）REMOVABLESPOOL可拆除短管N