计算压力pc48设计温度t50腐蚀裕量1设计温度下【σ】bt220常温【σ】b228计算公式结果设计温度下【σ】ft16942503.2755常温【σ】f173177404.97664270.3992241675.3752186.417875Ab1809.5结果计算公式结果16775.512834.475177404.976LG=0.5(Db-DG)=33.3547494.8864LT=0.5(LA+δ1+LG)38.48318595.391FG=W=331514.7853LG=0.5(Db-DG)33.3511.52952731δ06.3K=D0/Di=7.582938389D0160T0.65732形状系数Ma=FGLG=MP=FDLD+FGLG+FTLT=10800387.61M010800387.61操作情况预紧螺栓情况FT=F-FD=整体法兰计算公式1098.524433所有尺寸均不包含腐蚀裕量W=0.5(Am+Ab)[σ]b=螺栓许用应力法兰许用应力当b0≤6.4mm时,b=b0当b0>6.4mm时,b=2.53b01/2ybDWGa14.3cGPmpbDF28.6cGpDF2785.0FFPbaWtbPFFciDpDF2785.015.0ADLLPGFFftfaM00iDhZ1.03524Y0.87768U0.964488024.595281δf(假设)40.5ψ=δfe+1=3.06196658β=4/3δfe+1=3.749288774γ=ψ/T4.658258657η=δf3/d18.27831469λ=γ+η12.93657335253.5轴向应力169径向应力169切向应力1690.5(σH+σT)90.131895990.5(σH+σR)45.22165798【σ】ft应力计算1.5【σ】ft或2.5【σ】nt许用值【σ】ft【σ】ft20011hVUdiHDfM210ifRDM20RifTZDYM20N9.5b04.75b4.75y69m3DG41.3Db1086.283.140.785Am1098.524433331514.785Di21.1结果LA25.5578335.8038δ117.955916455.951823803.63811056018.09h=1.5δ126.9252.335308δ1/δ0=2.849206349F10.587形状系数Ma=FGLG=操作情况预紧螺栓情况计算公式FDLD=FGLG=FTLT=整体法兰0hhV10.055f00.050912755090.443316180.263792应力计算两者中的较大者90.1318959901hFe