余热锅炉汽水系统动态数学模型及仿真

206Vol.20No.6200411PowerSystemEngineeringNov.,20041005-006X(2004)06-0017-04*TK229.92+9ADynamicMathematicalModelandSimulationofSteam-waterSysteminHRSGMAOXiao-fei,RENTing-jinAbstract:SequentialmodularapproachwasappliedtoestablishtheuniversaldynamicmathematicalmodelsforthebasecomponentsofHRSGandthedynamicmathematicalmodeldescribingtheconnectionsofeachmodelforthewholesystem.DynamiccharacteristicsofaHRSGweresimulatedandtheresultofsimulationwasanalyzedaswell.Thisstudywashelpfulforestimatingthathowthetransientprocessofthesteam-watersideaffectstheHRSG’sperformanceandlaidtheoreticfoundationforthestructureandthecontrolsystemofHRSG.Keywords:HRSG;sequentialmodularapproach;steam-watersystem;simulation11.1[1]ρτ⋅⋅−−⋅−⋅+=VHDDHDHDQddH)(21221122(1):2004-05-09(1978-)100084*(863)(2002AA525014)D1D2VρHH1H2Q2Q11.25[2]1.2.111DsmHsmDqsHqsH´HDxHxDlpDn(Dfj)qb,DqbqbqbqbxqblpqssmbhMVVDDDDDddP⋅+″⋅+′⋅⋅−⋅−⋅−⋅+⋅=87654321εεεεεεεετ(2)smDsmHqbDH′′qsDqsHlpDH′xDxHnDqbfjD)(18200420ρρττ′′−′⋅⋅″+⋅′−−−−+=′ddPFVFVDDDDDddVbhqbqbxqblpqssmqb)()(21AVVyqbqb)(10000′−′⋅=(3)Vqb´Vqb——ρ´ρ——Mqb—Cj——Tbh——F1F2F3F4F5——y——Vqb0´——A——)()()()()()()()()()()()()(5842731654321ρρερρρρερρρρερρερερερρερρε′′−′⋅⋅=′′−′⋅⋅′′+′−′′⋅⋅′=′′−′⋅⋅′+′−′′⋅⋅′′=−′⋅′−−′′⋅′′=′−′′⋅′=′−′′⋅′′=−′⋅′−−′′⋅′′=−′⋅′−−′′⋅′′=jxxqsqssmsmCFFHHFFHHFHHHHHHHHHHHHHHHH1.2.2483)(bhbjzfzfTTKQ−⋅=(4)413HHHHDQDxjxjzfzf′−′′−′−=)((5)hqrslblbyVVφ)1(−=″(6)zfxjxjrsQHHDy)(−′=(7))12(195.0−′′′+≈lbhqXρρφ(8)DxjHxj——DlbHlb——Xlb——Dzf——Qzf——(Dfj)lb——,Vlb´Vlb——1.2.3[1~5]25.0)(eexjxjVVDD′′′′⋅=85.015.0+′′′′=VVDDeexjxj(9)DxjeVe[2](1)()(2)(3)ρρ′⋅−⋅′⋅=−21xjwxjbhxxDKghPP(10)lblbwlbrslbrslbbhxxDKgyhgyhPPρ⋅+⋅ρ+ρ′⋅−⋅+⋅ρ′⋅⋅=−222)1((11)Pxx——hxjhlb——ρlbDlb——Kw1Kw2——22619nn12M3533.2kg/s49026016.5MPa45kg/s5%THAMS33a3(a)3(b)3(c)3(d)553b2020042010001200140016001800050010001500200025003000detail20015010080CO2/ppmtemperature/K10001200140016001800500550600650700750800850detail20015010080NO/ppmtemperature/K3c3d4IGCC[1],,.[M].,2002.[2].[M].,1987.[3],,.[J].,2002,23.[4],.HG-220/100-10YM[J].,1999,15(5).[5],,.[J].,2002,22(6).51CO2CO23NOCOCO2122001450K1001508042003251001503251450KCHiNHi[1]GerryJH.OptimizationofcombustionbyfueltestinginaNOxreductiontestfacility[J].Fuel,1997,76(13):12691275.[2]MillerCA,LemienxPA,TonaliA.Evaluationoftire-derivedfuelforuseinnitrogenoxidebyreburning[J].Air&WasteManagementAssociation,1998,48(8):980989.[3]SmootLD,HillSC,XuH.NOxcontrolthroughreburning[J].Prog.EnergyCombust.Sci.,1998,24:385408.[4][EB/OL].[5]GearCW.[M]..:,1978.[6].[J].,2002,22(5):677682.[7]PeterG,MariaUA.Kineticmodelingofhydrocarbon/nitricoxideinteractionsinaflowreactor[J].Combustionandflame,1998,115(1):127.[8],.[J].,2002,17(4):79.10001200140016001800-2000200400600800100012001400160018002000detail20015010080CO/ppmtemperature/K