变压器储油柜支撑结构改进

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,(125000):,。:;;:TM403.9:B:1001-8425(2010)01-0052-04StructuralImprovementofSupportinTransformerOilConservatorJINZhao蛳wei,LIUYong蛳qiang(HuludaoElectricPowerEquipmentFactory,Huludao125000,China)Abstract:Theimprovedstructureofsupportintransformeroilconservatorispresented.Themechanicalstrengthofimprovedsupportisverified.Keywords:Transformer;Oilconservator;Supportstructure1,,,1m,,。,,,,。2,,,12。、,。,,,,。,,,,,。3,,,,,,3。,,。,。,,,,1Fig.1PhotoofstructureofoldoilconservatorsupportTRANSFORMER47120101vol.47JanuaryNo.12010、1,。,,,,。4。,:①。②。③,,。,,。4.1,::准1500mm×4500mm,1900kg,,4610kg,6510kg,g10m/s2,G=65100N。,60°,准273mm×15mm,L=1900mm,Q235。4。,,。5。,:f′=ρSv2=1.293×6.75×28.4×28.4=7039N(1)ρ———,kg/m3,1.293kg/m3v———,m/s,1028.4m/sS———,m2,,1.5×4.5=6.75m2F=(651002+70392)0.5=65480N,β53.8°。,F/2=32740N。F2Fig.2Diagramofstructureofoldoilconservatorsupport3Fig.3ImprovedstructuresupportphotoXA准28准20kf′AA准460δ25kA-AB46018025k-k(a)(b)(c)FLFLM200500MB4Fig.4ImprovedstructuresupportdiagramL=1900gaff′60°ββa准273L′L′LFXAYACC(c)(b)(a)5Fig.5DiagramofseamlesssteelpipestressanalysisF5347,,a-a,5a。gf,a-aNM:N=YA=32740×sin53.8°=26420N(2)M=XAL=32740×cos53.8°×1.9=36739N·m(3)d=258mm,D=273mm,::A=π×(D2-d2)4=π×(0.2732-0.2582)4=6.26×10-3m2(4):I=π×(D4-d4)64=π×(0.2734-0.2584)64=5.52×10-5m4(5):W=2ID=2×5.52×10-50.273=4.04×10-4m3(6)(2)、(3)、(4)、(6),gf:σL=-NA+MW=-264206.26×10-3+367394.04×10-4=48.7MPa(7)σY=-NA-MW=-264206.26×10-3-367394.04×10-4=-133.1MPa(8),,f,。380MPa,。4.2,,,。,,,,。4c,8M16,Smin=1.13×10-4m2。,、。8.8,640MPa,[τ]=640/2.5=256MPa。[Pjy]=640/1.25=512MPa。:Q=XAn=32740×cos53.8°8=2417N(9):τ=QSmin=24171.13×10-4=21.4MPa<256MPa(10):Pjy=Q0.025×0.016=6.04MPa(11),25mm,k-k,180mm,20mm,S′=0.18×0.025-2×0.02×0.025=0.0035m2,:σ=XAS′=32740×cos53.8°0.0035=193360.0035=5.5MPa(12),。4.35,XAM,。,M,,,,-,M,,。4b,,8M24,2.54×10-4m2。,4,。(3),FLFY:FL=0.5M0.2×4=0.5×367390.8=22962N(13)FY=0.5M0.25=0.5×367390.25=73478N(14):σL=2.3×229622.54×10-4=207.9MPa(15)2.3。:σJY=734780.5×0.25=5.9MPa(16)[σL]=640/1.5=426MPa,。(15)、(16),,。,,,。4.4,1.767m2,,(1)f″=1.293×1.767×28.4×28.4=1843N,184kg,54、1,,。5(1)。,,,,。(2),。,、,,,,,。,。(3)。,,。,,。,。6,,,,,。,,,,,。:[1],,.[M].:,1979.[2].[M].:,1995.:2009-05-13:(1976-),,,,;(1975-),,,,。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!《》()、“”2009125。、、60100。、,。《》、。“”“”,、,、。,、、、、、、、LCC;、、ASTA()ASTA(Thomas)、ASTA()(DavidLu)、ASTA;,、、。,,。、,。,《》,。,《》2009《》,《》2010。、,《》,。。55

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