云岡熱電管系調(diào)整分析與研究.pdf

1、華北電力大學(xué)（保定）碩士學(xué)位論文云岡熱電管系調(diào)整分析與研究姓名：楊志軍申請學(xué)位級別：碩士專業(yè)：動力工程指導(dǎo)教師：李永華；楊林201106華北電力大學(xué)碩士學(xué)位論文IIAbstractHightemperaturepressurepipeisapartofkeycomponentofthermalpowerunitsespeciallythefourmajpipelines.Thematerialafteralongrunmayoccurg

2、raduallydegenerateleadingtotheirultimatefailure.Supptshangers’stateanomaliesfailureswillchangethepipinghangerbearingfcedistributionwhichwillincreasesomeofthelocaldefmationofpipemakingthelocalpipingstressincreasesevenmeth

3、anthebasicallowablestressofpipe.Ifwedonotadjustitwillspeedupthedegenerationfailureofmaterialswhichseriouslyaffectthesafeoperationofpowerplants.InthispaperfourpipehangerinYungangPowerastheresearchobject.Throughthecollatio

4、nofpipelinedesigndrawingswkontheunitundertheletterofhotcoldpipehangerstatefcethethermalexpansiondisplacementtest.Theresultsshowedthatinunit#1thefourWaterPipeParthangerscrushedtodeathindifferentdegreesrelaxationtiltfieldi

5、nstallationerrswhichseriouslyaffectthelongtermsafeoperationofpiping.usethefourpipeshangerinthe#1machinetoftheobjectusingtheequivalentstiffnessofthecombinationofcellbasedmethodconsiderthecombinationbalancebetweenelementso

6、fthecontinuousconditionstheestablishmentofasmallnumberofnodesftheunknowngeneralizeddisplacementmathematicalmodelfthepipestresscalculationCheckresultsshowthatthestressofthefoursoftdrinkspipelineofqualifiedinthepipehangert

7、owkunderthepremiseofabalancedstressdistributionpipelinereasonablemetalplanthangermaintenancesupervisionwiththereferencevalue.Thearticlealsogivesthebiggestpipelinethelocationofsecondarystresscanbethefocusofsupervisionasam

8、etalpartscomponentsfthefailureanalysisprovidesthebasisftransfmation.Accdingtocalculationresultsthesupptpipehangerstateanalysiswhichdeterminedthe#1unitondefectsofthefoursupptshangersdevelopedatransfmationplanwhichprovides