軸流風速下壓力旋流噴嘴外流場特性研究.pdf

1、中國石油大學（華東）碩士學位論文軸流風速下壓力旋流噴嘴外流場特性研究姓名：張海平申請學位級別：碩士專業(yè)：化工過程機械指導教師：仇性啟20090401ResearchonExternalFlowFieldofPressureSwirlingNozzlesunderDifferentWindSpeedsZhangHai—ping(ChemicalMechanics)DirectedbyProfessorQIUXingqiAbstractRe

2、searchwasdeployedaimingatcokinginethylenequencherofethanecrackingsettingofacertainpetrochemicalolefinscompanyModelnozzleexperimentoperatingparameterssuchassprayvelocityfluidflux，pressure，andSOonwerededucedandfiguredoutba

3、singonsimilaritycriterionThefollowingwasperoratedinordertodeepenourcognitionofatomizationandflowagesituationinethylenequencher(hereaftercalledspraygenerater)，tobetterrationalizenozzledesign，andtominimizetheblindnessandwo

4、rkloadofexperimentalwork，throughnumericalsimulationofflowfieldinspraygeneraterusingexperimentmodelandpressureswirlnozzledesignedbyseniorofficememberConsistencyofnozzledirectionduringfixationisespeciallyimportantforflowfi

5、elduniformityBlowawayshouldbeavoidedofthesprayfieldbythehightemperaturegasTherefore，velocityofbothhightemperaturegasandthecoolingheavyoilshouldbecompatiblewitheachotherFormulasofdropletdiameterjetdepth，andminimumspraycon

6、eangleneededindesigningswirlnozzleswerededucedonthefoundationofevaporation，heattransformationandgeometryknowledgeSprayconeangleswerecollatedafterswirlnozzleWasdesignedonthebasisofswirlflowtheoryAtomizationandfluxcharacte

7、risticsofswirlnozzleunderdifferentstructuralparametersandoperatingconditionswereexperimentedusingequipmentofAPVLS一2000，andhigh—techcameraOptimalparameterswereperoratedandrelationshipofflux，SMD，dropletconsistencewithnozzl

8、e’SstructuralparametersandoperatingpressureFormulaofrelationshipoftheoreticswirlnumberandactualsprayconeanglewasfiguredoutExperimentdataweresignificantfordesignofswirlnozzleandspraygeneraterandtheirapplicationLocaleappli