木糖醇生产中氢气压缩机循环变频恒压控制

232Vol.23,No.220063HebeiJournalofIndustrialScienceandTechnology%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%Mar.2006:1008-1534(2006)02-0099-03,,(,050054):,。PLC,,,,、。,,,。:;;;PLC:TP202+.7:APressure-preservingcontrolofreciprocatingcompressorwithtransducerandPLCinthemanufactureofxylosicalcoholSHENYing-cai,LIUChao-ying,SONGXue-ling(CollegeofElectronicEngineeringandInformationScience,HebeiUniversityofScienceandTechnology,ShijiazhuangHebei050054,China)Abstract:Reciprocatingcompressorisoneofthemostimportantequipmemtinxylosicalcoholmanufanctureprocess.Thesta-blityofoutputgaspressureinfluencesthequalityoftheproductgreatly.Inthispaperitmainlydisscussesthecontrolofoutputgaspressurewiththetechnologyoftransducerandprogrammablelogiccontroller,insteadofbypassregulation.Atthesametimetheproblemofresonancebetweenreciprocatingcompressorandpipelinecanbesolved.Thewholesystemcanrealizeswitchwithnointerference,self-detectionandinterlockingprotection.Fromtherunningofthesystemitcanbeseenthatithasthecharactorofcontrolstablity,energysavingandthesystemimprovedtheproductqualitygreatly.Keywords:reciprocatingcompressor;autocontrol;transducer;PLC(),。,。、。。()()(1),:2005-04-13;:2005-12-23::(1950-),,,,。PCM1M2M31Fig.1Bypassregulation。、,。,;,,,。、、,(2)。PCM1M2M32Fig.2Frequencyconversion1[1,2]2。3,45kW,93.2A,8,740r/min,。,,2,1、。,,。,,2:CCI;,VCI。2PLC。3。-CCIVCI3Fig.3Diagramofcontrolblock2[1,2]、PLC、、,。TD2000(EMERONEV-2000,EV-2000TD2000RS-232C,RS485);DVP-PLCES;SYB-10000;EKZ998X。2.1TD2000-4T00P。TD2000-4T00PVCI(0～10V)、CCI(0～10V,0～20mA,4～20mA);FM(0～10V)、AM(0～10V)、GND();X0-X8()、FWD()、REV()、COM();Y1,Y2();TB()、TC()、TA(TC,TB)。,。4。/X6(CCIVCI),。,W(“”)VCI,。,4～20mACCI,,“”,20sY1(),;,20sY2(),,,。。0～10V0～10V24V10V4～20mA!2-Y0!2I.#I.$1/I!14TD2000Fig.4ControlportssettingsofTD2000“/”,00123,IPC,,。,(。,,,1,。2.2PLC[3,4]DVP-PLCESPLC。,、、。PLC,1。1“FRi”i。“Ki”,Ki,“”,“”,。KM,“KM”。1PLCTab.1Ports-settingsofprogrammablelogiccontrollerX0X1X2X3X4X5X6X7X10/1#1#2#2#1#2#FR1K1FR2K2U1-Y1U1-Y2Y0Y1Y2Y3Y4Y5Y6Y7X11/1#1#2#2#1#2#U1-FWDKM11KM12KM12KM11KM21KM22KM22KM212.3[5],。:;;;。,EKZ998X。。,,,。3。PI。[5]、、、、、。“/”,。,K“”。4、、、、;、、、、;0～10MPa();0.5;0～10MPa();1:100。,,、、/[2]、。PI、、。、、、、、、、。50.5,±1%,。,:、、、。,。30%～40%,[6～8]。(107)1012:[1]JAMESDHJ.Task-specificionicliquids[J].ChemLett,2004,33(9):1072-1077.[2]ZHAODong-bin,FEIZhao-fu,OHLINCA,etal.Dual-functionalizedionicliquids:Synthesisandcharacterizationofimidazoliumsaltswithanitrile-functionalizedanion[J].ChemCommun,2004,2500-2501.[3]MATSUMOTOH,KAGEYAMAH,MIYAZAKIY.Roomtemperatureionicliquidsbasedonsmallaliphaticammoniumcationsandasymmetricamideanions[J].ChemCommun,2002,1726-1727.[4],,,.[P].,03150455.8.2005.[5],,.1-(2-)-3-Knoevenagel[J].ChinJOrgChem,2004,24(10):1253-1256.[6]UZAGARECM,SANGHVIYS,SALUNKHEMM.Ap-plicationofionicliquid1-methyoxyethyl-3-methylimidazoliummethanesulfonateinnucleosidechemistry[J].GreenChem,2003,5:370-372.[7]SONGGong-hua,CAIYue-qin,PENGYan-qing.Amino-functionalizedionicliquidasanucleophilicscavengerinsolu-tionphasecombinatorialsynthesis[J].CombChem,2005,7(14):561-566.[8]RANUBC,BANERJEES.Ionicliquidasreagent:Agreenprocedurefortheregioselectiveconversionofepoxidestovici-nal-halohydrinsusing[AcMIm]Xundercatalystandsolvent-freeconditions[J].JOrgChem,2005,70:4517-4519.[9]WANGZhi-ming,WANGQiang,ZHANGYu,etal.Synthe-sisofchiralionicliquidsfromnaturalacidsandtheirapplica-tionsinenantioselectiveMichaeladdition[J].TetrahedronLett,2005,46:4657-4660.[10]MIXue-ling,LUOSan-zhong,CHENGJin-pei.Ionicliquid-immobilizedquinuclidine-catalyzedMorita-Baylis-Hillmanre-actions[J].JOrgChem,2005,70:2338-2341.[11]ZHAODong-bin,FEIZhao-fu,TILMANNJ,etal.Nitrile-functionalizedpyridiniumionicliquids:Synthesis,character-ization,andtheirapplicationincarbon-carboncouplingreac-tions[J].JAmChemSoc,2004,126:15876-15882.[12]DUZheng-yin,LIZuo-peng,ZHANGJuan,etal.FTIRstudyondeactivationofsulfonylchloridematerialsasdualcatalystsandmediaforBeckmannrearrangementofcyclo-hexanoneoxime[J].JMoleCatalA:Chem,2005,237:80-85.[13],,,.Bronsted、、Mannich[J].,2004,55(12):2043-2046.[14]RANUBC,BANERJEES.Ionicliquidascatalystandreac-tionmedium:Thedramaticinfluenceofatask-specificionicliquid,[BMIm]OHinMichaeladditionofactivemethylenecompoundstoconjugatedketones,carboxylicesters,nitriles[J].OrgLett,2005,7(14):3049-3052.[15]LIMei-chao,MAChun-an,LIUBao-you,etal.Anovelelectrolyte1-ethylimidazoliumtrifluoroacetateusedforelec-tropolymerizationofaniline[J].ElectrochemCommun,2005,(7):209-212.[16]MUZong-gang,ZHOUFeng,ZHANGShu-xiang,etal.Effectofthefunctionalgroupsinionicliquidmoleculesonthefrictionandwearbehaviorofaluminumalloyinlubri-catedaluminum-on-steelcontact[J].TribologyInternation-al,2005,38:725-731.[17]NICHOLASGM,TERESAG,PETERJS.Biodegradableionicliquids(partⅠ):Conception,preliminarytargetsande-valuation[J].GreenChem,2004,6:166-175.[18]VISSERAE,RICHARDP,REICHERTM,etal.Task-specificionicliquidsfortheextractionofmetalionsfromaqueoussolutions[J].ChemCommun,2001,135-136.[19]PETERW,BIRGITDH,ROYvanH,etal.Newfunction-alizedionicliquidsfromMichael-typereactions:Achanceforcombinatorialionicliquiddevelopment[J].