锅炉烟气余热利用的改造蔡应春

···http∥[e-mail]《》1974—。11221．4130492．413041、、。TH16TK175B1671-5276201103-0066-02ReformingBoilerforSmokeResidual-heatUtilizationCAIYing-chun1XUXiao-ang1XUMing-liang2YANGXin21．Dept．ofElec-machinary＆ElectronicEngineeringYiyangVocationalandTechnicalCollegeYiyang413049China2．YiyangGeneralVocationalSecondarySchoolYiyang413041ChinaAbstractLow-temperaturecorrosionofboilerairpreheaterandflueblockageareubiquitousproblemsinallkindsofboiters．Thispaperdiscussesthemechanismofairpreheatercloggingoffluegasandpreventiontreatmentmeasuresinresidual-heatutilizationandintroducesthereformofboilerairpreheatingsystembyusingdeoxygenatedwaterasheatmedium．thissolvestheboilerairpre-heatercorrosionandpluggingproblemsandhastheverygoodapplicationvalue．Keywordsboilerresidual-heatutilizationlow-temperaturecorrosionairpreheaterheatmedium0。。。。。。、。。1、、、、。。3m3、320t/h、。320t/h2、1。21500kW。。。2。、SO2SO3。30℃～60℃。70%～80%SO2SO3。SO3。SO3120℃。、。30℃2。·66····MachineBuildingAutomationJun201140366～67112。。3a。。1%～1．5%3%～5%。2%。SO3。1．05。b。105℃。。。。c。。10℃～30℃。d。。。4。。130℃130℃。1。1150℃。。180℃130℃。。2003。5。1234、5。6。。112·76····http∥[e-mail]《》4Matlab/Simulink4。Ud=510V100kWC1=0．06F。RLCR=6ΩC=8．85μFL0=2．87mH。Q=3f=1kHz。PID、PID、4。4、PIDPIDPID11PID2233。。IGBTPWM5。5。55。DSPPID。1．J．200433451-53．2．J．2007411247-48．3．FuzzyDPLLD．2008．4．J．2008．31084-87．5．J．2008257603-903．權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權權2010-10-11671．M．2003．2．M．1979．3．M．1979．4．M．1981．2010-10-20·211·