天然气管道压力计算

低压天然气管道计算管径（mm)壁厚（mm）管内径（mm)流量(m3/h)kυρTToDltp管长(m)起点压力(Pa)Dltp终点压力(Pa)压力降(Pa)15951499500.0011.40E-050.762882739.78500.007000.009.782108.662108.664891.3415941519500.0011.40E-050.762882739.18500.007000.009.182409.322409.324590.681593.51529500.0011.40E-050.762882738.90500.007000.008.902551.242551.244448.761598.2142.69500.0011.40E-050.7628827312.06500.007000.0012.06972.32972.326027.68159101399500.0011.40E-050.7628827313.62500.007000.0013.62192.39192.396807.61中压气管道计算管径（mm)壁厚（mm）管径（mm)流量(m3/h)kυρTToDltp管长(km)起点压力(kPa)Dltp终点压力(kPa)流速(m/s)1593.515210000.0011.40E-050.7328827318971100.01897.390.090.015.321595.8147.410000.0011.40E-050.7328827321961100.02196.088.388.316.291598.2142.610000.0011.40E-050.7328827325711100.02570.786.286.217.401591013910000.0011.40E-050.7328827329031100.02903.384.284.218.3115914.6129.810000.0011.40E-050.7328827340221100.04022.277.377.321.0015918.2122.610000.0011.40E-050.7328827352781100.05278.068.768.723.5415914.6129.810000.0011.40E-050.7328827340221100.04022.277.377.321.001591013910000.0011.40E-050.7328827329031100.02903.384.284.218.311598.2142.610000.0011.40E-050.7328827325711100.02570.786.286.217.401.通过更改管径、壁厚、流量、管长、起点压力来计算终点和压降2.这个所涉及的管长为当量管长，请把阀门、弯头等折合到当量管长进行计算3.根据《城镇燃气设计规范》中的天然气各项指标进行计算，非天然气管线参考计算结果4.已知起点压力及压降，管内径、流量、管长已知其中两项，可以通过对未知项的修改，观察压降数据，获得较为接近的值