1 2 序号 负荷(kW) 流量(kg/h) 管径 管长(m) ν (m/s) R(Pa/m) △Py(Pa) 1 4934 606177 DN300 90 2.284 149.183 13426.501 2 4934 606177 DN300 110 2.284 149.183 16410.168 3 4773.2 586422 DN300 12 2.209 139.692 1676.302 4 4773.2 586422 DN300 13 2.209 139.692 1815.994 5 4762.8 585144 DN300 12.4 2.204 139.089 1724.7 6 4762.8 585144 DN300 15.4 2.204 139.089 2141.966 7 4498.2 552636 DN300 4.4 2.082 124.182 546.401 8 4498.