给水管计算表

1、给水管计算表(1)查表法当计算出供水管网中各段的最大用水量后，则可依据供水管中水的经济流速11=(1.52.0m/s)查表选择经济流速范围内的标准规格的供水管或与之接近的供水管。给水钢管计算表管径d(mm)2540507080流量q(l/s)(t/h)0.7221.300.380.41.4444.200.565.420.242.16159.001.1318.400.485.160.280.82.88279.001.518.520.382.530.231.03.60437.001.8847.300.8012.900.473.760.281.640.20629.002.2666.300.9518.

2、000.565.180.342.270.241.45.04856.002.6488.401.1123.700.660.281.65.761118.003.01114.001.2730.400.758.700.453.790.321.86.480.8510.700.514.660.362.07.20178.001.5946.000.9413.000.575.620.402.62.0774.901.2221.000.749.030.523.010.80400.002.3999.801.4127.440.853.612.96577.002.86144.001.6938.401.0216.300.72

3、4.014.4046.801.1319.800.814.616.56235.002.1761.201.3025.700.935.02.3572.301.4230.001.015.620.16348.002.6490.701.5937.0021.60399.002.82104.001.7042.10m/s )1.21注：N流速-单位管长水头损失（m/km或mm/m）2）计算法Pict式中:Dl-某一管段的供水直径（mm）Qc-该管段的用水量（L/s）it一-管网中水流速度（m/s）;一般取经济流速1.52.0米.根据计算而得的某一管段的最大用水量Q（,再将=1.5m/s和2.0m/s分别代入公式

4、，则可计算出两个管径，选择两个计算管径中间的标准规格的水管即可；如果没有这种规格的水管，也可选用直径接近的水管。流量、流速及其与管道断面积三者之间的关系Q=兀D2/4*V*3600（m3/h）式中：Q流量；D管道内径（m）；V流速（m/s）。公称通径尺寸所相当的管螺纹尺寸mminmminmminmminmmin8203/44011/28031506103/825150210042008151/23211/46521/21255”25010”管道流量计算表（距离4km计算）管径（DN）常数管径（D2/4）流速（V）常数流量（t/h）损失50m/Kw计153.140.00005625136000.

5、64203.140.0001136003.140.00015625136001.77323.140.000256136002.89403.140.0004136004.52503.140.0006257.07703.140.0012251360013.85803.140.00161360018.091003.140.00251360028.260.003906251360044.161503.140.0056251360063.592003.140.0113600113.042503.140.01562513600176.633.140.022513600254.34544003.140.04

6、13600452.162525003.140.062513600706.505076003.141017.368177003.140.1225136001384.7411858003.140.16136001808.6416099003.140.2025136002289.0620891000136002826.002626管道流量计算表（距离4km计算）管径（DN）常数管径（D2/4）流速（V）常数流量（t/h）损失50m/Kw计153.140.00005625236003.140.0001236002.26253.140.00015625236003.53323.140.000256236

7、005.79403.149.04503.140.0006252360014.13703.140.0012252360027.69803.140.00162360036.172360056.521253.140.003906252360088.311503.140.00562523600127.172003.140.01236003.140.01562523600353.253003.140.022523600508.683094003.140.0423600904.327045003.141413.0012136003.140.09236002034.7218357003.140.122523

8、6002769.4825698003.140.16236003617.2834179000.2025236004578.12437810003.140.25236005652.005452管道流量计算表（距离4km计算）管径（DN）常数管径（D2/4）流速（V）常数流量（t/h）损失50m/Kw计153.140.00005625336003.140.0001336003.39253.140.00015625336005.30323.140.000256336008.68403.1413.56503.140.0006253360021.20703.140.0012253360041.54803.

9、140.00163360054.263360084.781253.140.0039062533600132.471503.140.00562533600190.762003.140.01336003.140.01562533600529.883003.140.022533600763.025634003.140.04336001356.4811565003.142119.5019206003.140.09336003052.0828527003.140.1225336004154.2239548003.140.16336005425.925226900336006867/p>

10、.140.25336008478.008278管道流量计算表（距离4km计算）管径（DN）常数管径（D2/4）流速（V）常数流量（t/h）损失50m/Kw计153.140.00005625436003.140.0001436004.52253.140.00015625436007.07323.140.0002564360011.58403.1418.09503.140.0006254360028.26703.140.0012254360055.39803.140.00164360072.3543600113.041253.140.0039062543600176.631503.140.0056

11、2543600254.342003.140.01436003.140.01562543600706.503003.140.0225436001017.368174003.140.04436001808.6416095003.142826.0026266003.140.09436004069.4438697003.140.1225436005538.9653398003.140.16436007234.567035900436009156.24895610003.140.254360011304.0011104管道流量计算表（距离4km计算）管径（DN）常数管径（D2/4）流速（V）常数流量（t

12、/h）损失50m/Kw计153.140.00005625536003.140.0001536005.65253.140.00015625536008.83323.140.0002565360014.47403.1422.61503.140.0006255360035.33703.140.0012255360069.24803.140.00165360090.4353600141.301253.140.0039062553600220.781503.140.00562553600317.932003.140.01536003.140.01562553600883.133003.140.0225536001