中央空调-管段阻力计算

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1、管段编号风量L（m³/h）管长L(m)初选风速V(m/s)管道尺寸a×b（mm）当量直径（mm）实际流速V(m/s)单位长度摩擦阻力RmPa/m摩擦阻力ΔPm（Pa）动压（ρV²/2）（Pa）局部阻力系数ζ局部阻力Z（Pa）管段总阻力ΔPm+Z(Pa)管路总阻力Σ(ΔPm+Z)(Pa)备注1-20.1222.04.0250×1501624.071.42.89.941.413.9233.1678.33散流器阀门分叉三通1.3513.420.3043.022-30.2449.34.0320×1802134.71.413.0213.250.263.4517.

2、77矩形弯头渐缩0.11.333-40.7323.54.7500×2503335.81.24.220.181.0521.1927.40分流三通渐缩1.02.0184-51.4648.04.7630×5003904.60.64.812.701.0513.3319.7888.13分流三通渐缩0.131.655-62.9288.05.0630×6306307.320.554.432.141.2540.1847.78分流三通0.13.216-74.026177.5800×8008006.30.457.6523.810.511.9119.56分流三通1-20.1

3、222.04.0250×1201624.071.42.89.941.413.9233.1684.78散流器阀门分叉三通1.3513.420.3043.022-30.2446.06.0320×1602134.71.413.0213.250.3043.4513.18分流三通3-40.732104.7250×5003335.81.21220.181.0521.1938.44分流三通0.265.23矩形弯头4-70.1224.04.0250×1201624.071.42.89.941.413.9233.1688.14散流器阀门分叉三通1.3513.420.30

4、43.029-00.2444.04.0320×1602134.71.413.0213.251.0513.9115.93分流三通渐缩0.12.02管段编号风量L（m³/h）管长L(m)初选风速V(m/s)管道尺寸a×b（mm）当量直径D（mm）实际流速V(m/s)单位长度摩擦阻力RmPa/m摩擦阻力ΔPm（Pa）动压（ρV²/2）（Pa）局部阻力系数ζ局部阻力Z（Pa）管段总阻力ΔPm+Z(Pa)管路总阻力Σ(ΔPm+Z)(Pa)备注9-50.4888.04.0400×3203553.81.310.48.661.0519.49分流三通4-50.9763.

5、05.8500×3203906.10.92.1722.330.819.56分流三通4-71.70813.57.0630×4004896.80.8511.4727.740.2618.6818.68矩形弯头11-120.1224.04.0250×1201624.071.45.69.941.432.9489.3散流器阀门1.358-110.2442.04.03201602134.71.42.813.251.0516.71分流三通8-110.3664.04.8250×3202804.60.93.612.71.0516.94分流三通11-120.7324.04.

6、7500×2503335.81.24.220.180.512.27渐缩6-121.0982.06.0500×4004445.490.71.418.080.510.44渐缩6-140.1222.04.0250×3201624.071.42.89.942.7533.1672.41散流器阀门14-140.2442.04.0320×1602134.71.42.813.251.0511.85分流三通14-40.7322.04.7500×2503335.81.22.820.181.0527.40分流三通3-150.1222.04.0250×1201624.071.

7、42.89.942.7533.1675.21散流器阀门15-150.2446.04.0320×1602134.71.45.613.251.0511.85分流三通15-50.7322.04.7500×2503335.81.22.420.181.0525.61分流三通主管5.746.07.01000×8008887.170.63.630.841.0535.9835.98分流三通三层总管26.764.87.52000×180037897.430.11.4833.121.0535.2535.25分流三通一层管径计算和阻力计算管段编号风量L（m³/h）管长L(m

8、)初选风速V(m/s)管道尺寸a×b（mm）当量直径D（mm）实际流速V(m/s)单位长度摩擦