管道沿程水头损失三种计算方法(自动计算)
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表五流速V水底闸阀管阀(全开)mm口寸m3/hL/sm/s(每米)ξ=5ξ=0.1ξ=1.7502″205.52.80.37820.040.68753″4512.52.820.2272.030.040.691004″8022.22.80.15720.040.681255″10027.72.270.0751.30.0260.441506″15041.72.360.0641.40.0280.472008″28077.82.450.0481.50.030.5125010″4861352.750.0441.90.0380.6530012″7922203.110.0442.50.050.8535014″12603503.640.0491.350.0671.1340016″14404003.180.0311.030.050.8550020″20165602.850.010.830.040.68水管口径D止回阀水管及管路附件损失扬程表流量Q
出 口(淹没出流)ξ=0.5ξ=0.2ξ=0.5ξ=0.2ξ=0.1ξ=0.1ξ=0.25ξ=1.00.20.080.20.080.040.040.10.40.20.080.20.080.040.040.10.4050.20.080.20.080.040.040.10.40.130.0520.130.0520.0260.0260.0650.2630.140.0560.140.0560.0280.0280.070.2840.150.060.150.060.030.030.0750.3060.190.0760.190.0760.0380.0380.0960.3850.250.10.250.10.050.050.1250.4930.340.0670.340.0670.0670.0670.170.6750.260.050.260.050.050.050.1250.5150.210.040.210.040.040.040.1050.414损 失 扬 程(m)
止回阀水管进口弯 管大小头