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,CO2,,,,PID,PLC,3.2[4,5],Pt100,,,05VA/D,CO2PID,D/A4PLCCO2,,,PLC,,,,:[1]GloynaEF,LiL,McBrayerRN.EngineeringAspectsofSu2percriticalWaterOxidation[J].Wac.Sci.Tech.,1994,30(9):1210.[2].PLC[J].,2003,22(2):1262138.[3],,.[M].:,2003.[4],,,.[M].:,2004.[5].CO2[J].,1999,24(6):13217.[6],.[J].,2004,25(2):95297.[7],.PLC[J].,2001,61(4):26246.():2006212216:(19702),(),,,,:100027466(2007)0320075204,,(,116600):,,:;;;:TE964103;TH136:BMechanicalSealSelectionforCentrifugalPumpZHANGWei,PANLi2bin,ZHANGXu2dong(SulzerPumps&CompressorsLtd.,Dalian116600,China)Abstract:Thebasicstructures,characteristicsandapplicationrangesaboutmechanicalsealswereintroduced,severalpiecesofadviceandattentiveissuesforthemechanicalsealselectionweresetforth.363Vol136No1320075PETRO2CHEMICALEQUIPMENTMay2007Keywords:centrifugalpump;mechanicalseal;structure;selection20a,,,70%,[1,2],,,,,11.11,1,1,1,1,,,,,,0.50.7MPa,,11.2(1),(2),,,1MPa21.3,,1,2,1.4(12),(3),,,,30m/s,31.5(4a)1,,,(13)3,,,67200736,,,(4b),,O,41.6,1(14)2,,(5a,)(5b,)(5b)522.1,,,,,,,2.2,0.7MPa,0.712MPa,12MPa,(),2.3,30m/s,,,2.480,,,13.9,80150,150,,,,20,,PLAN62,,,2.5,,,773,:,,,,,,11PLAN01,,PLAN02,PLAN11,,80,PLAN13,,,PLAN21,,,160PLAN23,,PLAN21,PLAN21PLAN31,,,,1.5%2PLAN32,,PLAN41,,,,1601.5%2PLAN52(),,,PLAN53()0.050.15MPa,,,,,PLAN54,0.050.15MPa,PLAN53PLAN62,,,3,,,:[1].[M].:,1996.[2].[M].:,1993.()(IGCC)IGCC,,,,IGCC,,,()87200736