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1、·盧北IU，J人學(xué)傾I‘學(xué)化論史摘要本論文以某600MW火電機(jī)組靜葉可調(diào)軸流引風(fēng)機(jī)為研究對象，采用常規(guī)測量法對其進(jìn)行了現(xiàn)場測繪。利用繪圖軟件AutoCAD采用從點到線、從線到曲面、從曲面到實體的方法，構(gòu)建了引JxL機(jī)通流部分的三維模型。而后利用數(shù)值計算力學(xué)模擬軟件Fluent對引風(fēng)機(jī)內(nèi)部流場進(jìn)行了模擬，并且對低負(fù)荷運行的幾種情況也進(jìn)行了模擬。最后，對模擬情況與實際運行情況進(jìn)行了對比分析，結(jié)果表明數(shù)值模擬結(jié)果較好的反映了引風(fēng)機(jī)內(nèi)部流場的情況，這對縮短引風(fēng)機(jī)產(chǎn)品研發(fā)的周期以及降低研發(fā)成本有重要意義。關(guān)鍵詞：靜葉可調(diào)：引風(fēng)
2、機(jī)；數(shù)值模擬；對比分析華北I乜力人學(xué)顧I‘學(xué)化論文AbstractTakingthestudyofastaticbladeadjustableaxialflowinduceddraftfanin600MWthermalpowerunit，thisthesisdidfieldsurveyingandmappinginusingconventionalmeasurement．The3DmodelofinduceddraftfanwasconstructedbytheuseofAutoCADsoftware(frompoi
3、nttoline，fromlinetothesurface，fromsurfacetotheentity’Smethod)．TheninternalflowfieldininduceddraftfanwassimulatedbyCFDsoftwareFluent，andtheseveralconditionsinlowloadweresimulatedtoo．Finally,thisthesismadecomparativeanalysisforthesimulationresultsandactualoperati
4、onsituation．Theresultsshowedthatthenumericalsimulationcanbetterreflecttheactualflowstatusofliquid，whichwasimportantforshorteningtheresearchcycleandreducingtheresearchcostoffanproducts．Keywords：staticbladadjustable；induceddraftfan；numericalsimulation；cmparativea
5、nalysisH華北IU，J人學(xué)例卜學(xué)化論迎目錄摘要?????????????．．．．．．．???．．．??．．?????．．．．．???．．?．．．．．??．．．?．．．．．．IABSTRACT?。???????????????????????????????????．II目j錄????．．．．．．．．????????．?????．．????．．．．．．．．???．．．?．．????????．1lI第l章緒論????????????????．．．???????．????????????。l1．1選題背景及意義???
6、???????????????????????l1．1．1選題背景??????????????????????????11．1．2選題意義????????????????????????????21．2軸流j)‘L機(jī)簡介??????????????????????????31．2．1軸流風(fēng)機(jī)的分類????????????????????????．．31．2．2軸流風(fēng)機(jī)本體?????????????????????????．．41．2．3軸流風(fēng)機(jī)性能參數(shù)?????????????????????．．71．3國內(nèi)外研究動
7、態(tài)??????????????????????????81．4課題研究內(nèi)容?????????????????????????一9第2章引風(fēng)機(jī)葉輪三維建模??????????????????????????。ll2．1逆向工程簡介?????????????????????????．112．2常用測量方法?????????????????????????122．2．1三維坐標(biāo)掃描儀器?????????????????????．122．2．2模具測量法?????????????????????????122．2．3常規(guī)測量
8、法????????????????????????．132．3測繪引風(fēng)機(jī)葉輪????????????????????????．132．3．1測繪工具?????????????????????????132．3．2測量方法?????????????????????????132．3．3葉片測量數(shù)據(jù)?????????????????????????
