W型火焰锅炉动态特性的数值计算与研究

25219984JournalofNorthChinaElectricPowerUniversityVol.25No.2Apr.1998W(,071003)WW,WTK223,,W,,,,;,,,:(1),,,;(2),,,;(3),,,,,[1][2],,,22.1,;,,;7=0,::1997-07-10©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.dHxjdS=DxjHxj-DxjHxjMxj(1)dTbjdS=Qlb-QzfMlbCjs(2)dpdS=Qzf+(E1-Hqh)Dgs-E2Ckp-DpwE1-DxjHxj+DxjHxzE3v0+E4v0+E5Mqb(3)(3),Ek,212,--,,:-:Dj-Dc+W1+W2=V5Qc5PcdPcdS(4)Pj-Pc=ND2jQj(5)-:K2Dm(tj-tc)+DjHj-DcHc=VdQcHcdS(6)Qjw-Qjn=MCjsdTjsdS(7),,,213,,(R-K):Xa(S)=F[X(S),U(S),Z(S)]Z(S)=G[Xa(S),X(S),U(S)](8)Y(S)=H[X(S),U(S),Z(S)]:X(S),;Xa(S);U(S),;Y(S),,,;Z(S)3162:W©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3111,ab(5P5S)01232MPaömin,01272MPaöminc01279MPaömin,1023m2763m2,,30à,40töh,01069(kgös)ös01106(kgös)ös5P5S0104MPaömin,3122,,5P5S5P5S50à0116MPaömin,25à0109MPaömin5P5S,1100à+10à2+10à3133,5P5S0118MPaömin,0116MPaömin01036(kgös)ös01021(kgös)ös1130ömin0178ömin,317ömin,,W,,314W,25%100%,50161511kgö(MPa.kgös)1261998©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3+10%4100%+10%1100%75%50%25%cödkgö(MPa.kgös)1511201330185016cödkgö(MPa.kgös)15111517211445111,,,,,44.1W;1023m2763m2;,732m2628m2;31942183m2,4a,bb,,,aa,,4.25,100%,(5T5S)519ömin;50à4119ömin6,5T5S01154MPaömin0109MPaömin362:W©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.56W,413750%,(Tb),,,,,,WW,,4.48,,-0.21MPaömin,-4.09ömin,763m2,W,,,,78-10%461998©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.5W,,,,;,,W:,F.W1ö2;,280;,W,,[1][2],W,11W1,1994(6):454821W,,1996(6),3631,:,1992.518562411,1982(2),5160NumericalCalculationandDiscussionoftheDynamicResponseofAW-TypeFlameBoilerFanQuangui(Dept.ofPowerEngineering,Baoding071003)ABSTRACTThenumericalcalculationanddiscussionisconductedonthedynamicre2sponseoftheevaporationcircuitandthesuperheatersystemofaW-typeflameboilerofShanganPowerPlant.Thedynamicevaporatingprocessandthesteamtemperatureoftheboilerunderdifferentloads,operatingmodes,andrefractorybeltareasect.havebeenstud2iedindetail.Thereasonsleadingtotheboilerspoorloadchangingabilityarealsodis2cussedandtechnicalmeasuresproposed.KeyWordsW-typeflameboilers,evaporation,superheating,dynamicresponse,numeri2calcalculation562:W©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.