流量计算气体的相对比重ΔT0=273.16KZ,气体压缩系数,P<1.2MPa时取1管道摩阻系数λ=管道摩阻系数λ=平均压力0.65500Z=1.00000.02606660.02606463.150管道内径(mm)d=47请输入以下数值计算结果起始压力P1(MPa)终点压力P2(MPa)管道外径d(mm)管道壁厚(mm)管道长度L(km)燃气温度T(K)流量qv(m3/d)流量qv(m3/h)EDN>300时3.203.10057.05.00.04288.1593699.53904.1100014.1100014.20.7125410.8200995750.200.15057.03.51.50288.152892.7198.93087.63087.60.74235.69380286220.250.20076.04.01.50288.157446.9512.07948.87948.80.710207.14735307250.200.15076.04.01.50288.156567.6451.57010.27010.20.911544.7670570450.250.20089.04.51.50293.0011391.2783.112158.812158.80.715174.12487984960.200.15089.04.51.50288.1510130.3696.510813.010813.00.917309.37680425731051*POWER(((SUMX2MY2(B9,C9)*POWER(C9/10,5))/(0.5749*F9*1*E9/1000*0.009407/POWER(D9/1000,1/3))),0.5)流量qv为在P0=101.325KPa,T=293K状态下的流量本计算式适用于管道沿线相对高差小于200m时流量qv(万m3/d)起点P1(MPa)管道外径d(mm)管道壁厚(mm)管道长度L(km)燃气温度T(K)终点压力MPa8.000.600219.16.30.40288.150.59880.001.369273.17.14.00288.151.149100.001.500355.67.15.00288.151.415城镇燃气输送压力分级80.001.415323.67.16.50288.151.286高压A0.8
设计
中所采用的燃气绝对温度燃气的动力粘度ν=0.011mPa.s钢管壁厚计算16.4t<120℃时,温度折减系数为111.45请输入以下数值计算结果6壁厚计算管道外径(mm)设计压力(MPa)焊缝系数φ温度折减系数钢材屈服强度地区类别系数壁厚δ(mm)711.002.001.001.00360.000.306.583159.002.501.001.00245.000.302.704#DIV/0!公式Ⅰ类地区:F=0.72Ⅲ类地区:F=0.40L245NB:σs=245MPaⅡ类地区:F=0.60Ⅳ类地区:F=0.30L290NB:σs=290MPaL360NB:σs=360MPa3582389.033189321.69642514.85311617.35930300.6964190.701233642.34288671.761484950.5784642.1569539.38695110585