鍋爐暖風(fēng)器熱力系統(tǒng)的優(yōu)化設(shè)計(jì)研究.pdf

1、上海發(fā)電設(shè)備成套設(shè)計(jì)研究院碩士學(xué)位論文鍋爐暖風(fēng)器熱力系統(tǒng)的優(yōu)化設(shè)計(jì)研究姓名：殷國(guó)強(qiáng)申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：熱能工程指導(dǎo)教師：趙之軍20080501匿圃ABSTRACTABSTRACTSteam—airheaterisa虹11dofboilerauxiliaryequipmentthatUSeSsteamtoheatairGenerallysteamairheaterthermalsystemiscomposedofthesteamair

2、heatervalves，drainstoragetanks，drainpumpWhenboilerbeinginstart—upconditionorinlowqoadconditionboilerexitgastemperatureisloworinwintertheairtemperatureislowSOit’SeasyforairpreheaterhavinglowtemperaturecorrosionSteam—airhe

3、ater’Sbasicfunctionisusingsteamfromturbinetoheatboilerinletairandthensendingtheairintoairpreheaterimprovingairpreheaterinletairtemperature，preventlow—temperaturecorrosionSosteam—airheaterfortheboilerisnecessaryandmayalso

4、playaroleinreducingcoalconsumptionInthispaperthereare6kindsofsteam—airheaterthermalsystemforms，someoperatewell，someoperatebadlySoitisnecessarytostudysteamairheaterthermalsystem，andgettheeconomystabilitysecurityobjectives

5、thisthesisanalysesinthefollowingthreeaspects：(1)Analyzingtheexistingproblemsintheoperationofsteam—airheatersuchasleakage，blockingdust，waterhammerandthecorrespondingsolutions；alsoanalyzingtheexistingproblems麗tllexamplesin

6、thedesign，calculationofsteam—airheater(2)Fortheexisting6typicalsteam—airheaterthermalsystemstherearesomeprevalentoperationalproblems，suchasthevibration，thatmakessteamairheaterdosenotoperatenormallyAstheenvironmentaltempe

7、ratureischanging，andtheboilerisalsoindifferentconditionssosteamairheatersystemhadbetterbeadjustableThese6formsofthesteamairheaterthermalsystemontheprincipleCangenerallybesummedupasthesteamsideregulation，drainsideregulati

8、onandmixedregulationButwefmdthatdrain—sideregulationisbetterthanothers，andanalyzingthesuperiorityofthedrainsideregulation(3)Themainparametersthataffectsteamairheaterthermalsystem’Soperationincludesteam—airheateroutletair

9、temperatureandsteamparametersParametersanalysisisbuiltonthesteam—airheaterthermalsystemthatcanbecontrolledOnacontinentwiththeheaterthermalanalysis，preparedbytheuseofsimulationsoftwarecalculationit’Sfoundthatwhenonlythehe