空分設(shè)備自動(dòng)變負(fù)荷調(diào)節(jié)的研究.pdf

1、東北大學(xué)碩士學(xué)位論文空分設(shè)備自動(dòng)變負(fù)荷調(diào)節(jié)的研究姓名：何玉君申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：動(dòng)力工程指導(dǎo)教師：王承陽劉杰20090601ResearchonautomaticloadcontrolofairseparationunitAbstractTherearetwowaystoseparateairinindustryOneusesmolecularSlevetoadsorbandseparateoxygen，nitrogenandarg

2、onAnotherusescryogenicmethodtoliquefyanddistillairAirseparationunitofAnshanIronandSteelCompanyisusingthelatterone，fordistillationcangethighlypureproductstosarisfyindustrydemandThelargescaleoftheblastfurnacesandconverters

3、arerunningafterAnshanIronandSteelCompanyunderwenttheunceasingtechnologicaltransformations，oncethefurnacedoesn’tworknormallyorthefurnaceoverhauls，oxygenventwillincreaseobviouslythewasteofenergywillbemassiveTeduceoxygenven

4、tandsaveenergyASUhastoincreaseorreduceoxygenoutputAmathematicalmodelofdistillatecolumnshasbeensetupandcalculationofdistillatesystemhasbeenconductedCalculationsforeachmainprocessparameterwithadjustableloadrangeof85％～105％h

5、avebeenconductedforairseparationunitThroughcomparingwithdesigningparameter，itshowsthatthemathematicalmodelandcomputingmethodarereliableAccordingtothetheoreticalanalysisandthevariationofmainparameters，relationshipofvariab

6、leloadshavebesetup，theprogramsofvariableloadshavebeenadaptedfor，operationofvariableloadsofthe35000m3／hairseparationunithasbeenrealizedIncreasesthePIDadjustmentmoduleofairfluxwhichincreasesorreducesairfluxintodistillateco

7、lumnaccordingtooxygencontentchangingofargonfractionandthePIDadjustmentmoduleoftemperaturewhichincreasesorreduceshighpressureairfluxintodistillatecolumnaccordingtotemperaturechangingofheaterSOthanASUcanoperatesteadilyAcco

8、rdingtothefactofAnshanIronandSteelCompanythatproductrequiringproportionofnitrogenandargonishigherthanproductrequiringproportionofoxygen，afterthetheoreticalcalculationandtheanalysis，throughtheparameterrevisionandtheoperat

9、ionadjustment，increasedthenitrogenandtheliquidargonoutputinthesameoxygenloadWhencrudeargoncolumnrestoresunderthecoldstate，purityofoxygenwillfluctuate，aftertakingthepointedmeasure，thedifficultproblemhasbeensolvedsuccessfu