液体流量和管道压力损失计算

管道外径(mm)壁厚(mm)流速(m/s)截面积(㎡)流量(m³/h)511.21.50.00185507910.0174268525.41.230.0004154764.48713678863.51.61.20.00285577812.33696272流量(m³/h)流速(m/s)壁厚(mm)截面积(㎡)管道外径(mm)25.411.20.00705555697.18086485111.51.20.00203703753.32775382111.51.20.00203703753.32775382流量(m³/h)管道外径(mm)壁厚(mm)截面积(㎡)流速(m/s)1.25251.20.000401150.86556712420511.20.0018550792.994781041063.51.20.0029320560.947382149已知管径和流速求流量已知流量和管径求流速已知流量和流速求管径序号管件管道尺寸0.511.5145度弯头0.17120.36160.5696290度弯头0.37450.7911.2463U型弯0.80251.6952.674三通（分流）0.4280.9041.4245三通（合流）0.6421.3562.1366闸阀（全开）0.08560.18080.28487截止阀（全开）3.6387.68412.1048蝶阀（全开）0.2140.4520.7129Y型过滤器0.58851.2431.95810止回阀（全开）1.44453.0514.80611球阀0.3210.6781.06812隔膜阀1.29472.73464.307613容器入管口0.2140.4520.71214转子流量计2.6755.658.9管件当量长度对照表（ISO2037)备注：1、当量长度计算公式：Le=nD（Le：当量长度n：当量倍数D：管件内径）公式参考：中华人民共和国行业标准HG/T20570-9522、将管件和阀门等折算为相当的直管长度，此直管长度称为管件和阀门的当量长度，计算管道压力降时，将当量长度加到直管长度中一并计算，根据每100米管道扬程损失得出总扬程损失。22.530.77760.96481.1664001.7012.11052.5515003.6454.52255.4675001.9442.4122.916002.9163.6184.374000.38880.48240.58320016.52420.50224.786000.9721.2061.458002.6733.31654.0095006.5618.14059.8415001.4581.8092.187005.88067.29638.8209000.9721.2061.4580012.1515.07518.22500管件当量长度对照表（ISO2037)备注：1、当量长度计算公式：Le=nD（Le：当量长度n：当量倍数D：管件内径）公式参考：中华人民共和国行业标准HG/T20570-9522、将管件和阀门等折算为相当的直管长度，此直管长度称为管件和阀门的当量长度，计算管道压力降时，将当量长度加到直管长度中一并计算，根据每100米管道扬程损失得出总扬程损失。0.5输入数量求当量长度1000000000000000000000000000000000000000000000000000000003输入数量求当量长度1.522.5总当量长度000000000000000管道外径(mm)51管道壁厚(mm)1.2管道内径(m)0.0486流速(m/s)2运动粘度(㎡/s)8.93E-07雷诺数108846.58450.0174193830.1109631870.5成立0.07314765856040.96268832管道总延程损失(m)所以假设如果假设成立，则：每米延程损失(m)假设管道中处于湍流光滑区，则：延程延程阻力系数粘性底层厚度(mm)绝对粗糙度(μm)管道总长度(m)温度(℃)密度(kg/m³)粘度(mPa·s)运动粘度(㎡/s)20998.21.0020.00000100325997.00.8908.93E-0730995.70.7988.00E-0770977.80.4044.13E-0780971.80.3543.64E-0790965.30.3153.26E-07