W火焰锅炉燃用劣质无烟煤的稳燃技术

25220054CHINESEJOURNALOFPOWERENGINEERINGVol.25No.2Apr.2005:100026761(2005)0220201206W,,,,,,(,510600):W,W,,,255:;W;;;:TK224:ATechnicalResearchonStableCombustionoftheLambskin2firedW2flameBoilersSUNChao2fan,LINai2zhao,YangHua,XUQi2sheng,SONGJing2hui,YUYue2xi,WENZhi2yong(GuangdongPowerTest&ResearchInstitute,Guangzhou510600,China)Abstract:Long2timestablecombustionisabigtechnicalproblemforW2flameboilers,whichfirelambskinfromShaoguanDistrict.ThedesignfeaturesoftheboilerswithW2flameinShaoguanPowerPlantandtheirunstablecombustionbehaviorduringcommissioningaredescribed.Atechnologyforstablecombustionofthelambskinisproposedwithadescriptionoftheachievedeffects.Suggestionsforimprovingthecombustionanddesignarealsoforwarded.Figs2,tables5,refs5.Keywords:powerandmechanicalengineering;W2flameboiler;stablecombustion;lambskin;low2volatilecoal:2004206228::,,,10FWW1025tPh,300MW,,[1],10,,:,,,,,,W,,,,,,2001315,1130,11.1DG1025P18.22II10,,,W,4D211DFW,,1.2153tPh,83%(200),93C,45%B2MCR1Tab.1MaindesignparametersofboilerMCRECRPth-11025935PMPa17.3517.22PC540540Pth-1849779PPMPa3.83P3.643.51P3.34PPC325P540316P540PC275269.5(P)PC132P123129P121Pkgh-1171000158100P%90.4890.611.31.3PC335332PC320318PC109610781.31.3.1,Vdaf=10%(),8%21.3.2,,,,,200121119,[2]:Vad=6.57.5%,Aad=3548%,Qnet,ar=13.6015.50MJPkg1.4,242Table2UlbimateanalysisasreceivedbasisCarP%45.143.2HarP%1.91.4OarP%1.91.5NarP%0.60.2SarP%1.51.7HarP%4042MarP%910Qnet,arPMJPkg16.83515.910111Fig1Schematicdiagramofcontrolmechanismforcombustion6,,ABC(30%40%),A()B(),C(),,DEF(60%2022570%),,DE,FG()ABCD42422Fig2Schematicdiagramofarrangementrelationsbetweenmillsandburners2,,:,,,,,-400Pa-700Pa,,II,MFT,,,,,46,,,,,,3,[3,4],,,,10:3.1,,,,,,,,,,2427mPs,31mPs,,7.59.0kPa[5],33(:%)Tab.3OpeningsofcontractingholesintheprimaryairductsB19580C16050A19087D19270B210095C26050A290100D26777B39595C36060A3100100D35545D4100100A48060C49650B46560D5100100A56765C510087B55365D67570A66055C682100B690853.2,,W,21m23m26m29m,,,W,4(3)()3.33.3.13022,:W4PCTab.1Measuringdataoftemperaturesinthefurnace2001.APBAPBAPBAPB3.9.1243P12111200P12273.10.29m1162P12851165P12213.11.1150P10271212P10373.9.1351P13201317P12733.10.26m1318P12231250P12823.11.1281P13021211P11743.9.1464P12641113P15483.10.23m1202P12111589P13533.11.1403P1246993P14583.9.1467P14151156P15703.10.21m1347P14521486P14763.11.1390P12301042P1377,,,,,,812,,103.3.2,,,,,10%,,,40%70%,60%3.4,,,7000001000000m3Ph6001000Pa,AB,10%10%20%DEF,10%,10%15%25%45%,B,,,,WDE,,,,,,,,,,F5168h300MW3.5,,1.2%2.0%(0.50.6),,,3.6,BCDA(73.6t)175tPh,,,,,()3.7,,,,,,,,,,,3.8,Aad50%,,,,,,,,402255(:%)Table5ReferencedataforcombustioncontrolABDEF()B1101010102250780A110101010234010100B210151010317010100A2101510153330890B31020101541601095A310201015451010100D410201015437010100C41020101542701096D510151015305010100C510151010297010100D61010101026501075C61010101024401280C11010101024701073D11010101026701060C21015101032701064D21015101530301060C31020101537701060D31020101535701060A41020101535401070B41020101536701060A51015101531901077B51015101031401065A61010101026601073B61010101027406734(1)W,,168h(2),91.79%,1.18%,Cfh=2.808.29%,4%6%180MW(3h)160MW(1h),,(3),7W1,1(11,,)W,W,,,WW,5(1),5022,:W,,,,(2),NOx,,,,,NOx(3),,,,,105,,,,,11,:[1].[R].,2002.[2].10[R].,2001.[3].[M].:,1986.[4],.[M].:,1984.[5].[M].:,1987.20052005,200510,,:1(1)(2);(3);(4);:2,,,2,,E2mail3(1):;(2),4:200565:1115,:200240:021264358710362813601688616021264358710362513801623468E2mail:[e-mail]60225