給水管徑快速計算表

給水管徑選擇,,,,,,,,,,,,

1、支管流速選擇范圍0..8～1.2m/s。,,,,,,,,,,,,

2、干管流速選擇范圍1.2～2m/s。,,,,,,,,33.067,,8,,

3、管段壓力降選擇范圍0.3～0.5kgf/cm2?！?～5m揚程】,,,,,,,,,,,,

按壓降與管段長度選管徑,,,,,,,,,,,,

選擇參數(shù),,,,,,,,,,,,

流速m/s,壓力降kgf/cm2,管段長度m,,,,,,,,,,

0.6,0.3,200,,,,,,,,,,

計算值,,,,,,,,,,,,

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計算管徑,26.0,mm,,,,,,,,,,

計算流量,0.32,L/s,,,,,,,,,,

計算流量,1.146,m3/h,,,,,,,,,,

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按水泵流量、預(yù)選管徑與長度驗算壓降,,,,,,,,,,,,

選擇參數(shù),,,,,,,,,,,,

設(shè)計流量m3/h,管徑mm,管段長度m,,,,,,,,,,

37.62,100,5,,計算方法：,,,,,,,,

,,,,1、黃色格填入實際要求參數(shù)。,,,,,,,,

,,,,2、填入管徑，若計算值為紅色，請加大管徑規(guī)格。,,,,,,,,

流速,1.3,m/s,,3、計算值變綠，即為管徑合格。,,,,,,,,

壓力降,0.05,kgf/cm2,,,,,,,,,,

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推薦流速（單位：m/s）,,,,,,,,,,,,

管徑（mm）,15,20,25,32,40,50,65,80,,,,

閉式系統(tǒng),0.4～0.5,0.5～0.6,0.6～0.7,0.7～0.9,0.8～1.0,0.9～1.2,1.1～1.4,1.2～1.6,,,,

開式系統(tǒng),0.3～0.4,0.4～0.5,0.5～0.6,0.6～0.8,0.7～0.9,0.8～1.0,0.9～1.2,1.1～1.4,,,,

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管徑（mm）,100,125,150,200,250,300,350,400,,,,

閉式系統(tǒng),1.3～1.8,1.5～2.0,1.6～2.2,1.8～2.5,1.8～2.6,1.9～2.9,1.6～2.5,1.8～2.6,,,,

開式系統(tǒng),1.2～1.6,1.4～1.8,1.5～2.0,1.6～2.3,1.7～2.4,1.7～2.4,1.6～2.1,1.8～2.4,,,,

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管徑/流速/流量對照表,,,,,,,,,,,,

管徑(DN),流量m3/h,,,,,,,,,,,

,0.4m/s,0.6m/s,0.8m/s,1.0m/s,1.2m/s,1.4m/s,1.6m/s,1.8m/s,2.0m/s,2.2m/s,2.4m/s,3.0m/s

20,0.5,0.7,0.9,1.1,1.4,1.6,1.8,2,2.3,2.5,2.7,3.4

25,0.7,1.1,1.4,1.8,2.1,2.5,2.8,3.2,3.5,3.9,4.2,5.3

32,1.2,1.7,2.3,2.9,3.5,4.1,4.6,5.2,5.8,6.4,6.9,8.7

40,1.8,2.7,3.6,4.5,5.4,6.3,7.2,8.1,9,10,10.9,13.6

50,2.8,4.2,5.7,7.1,8.5,9.9,11.3,12.7,14.1,15.6,17,21.2

65,4.8,7.2,9.6,11.9,14.3,16.7,19.1,21.5,23.9,26.3,28.7,35.8

80,7.2,10.9,14.5,18.1,21.7,25.3,29,32.6,36.2,39.8,43.4,54.3

100,11.3,17,22.6,28.3,33.9,39.6,45.2,50.9,56.5,62.2,67.9,84.8

125,17.7,26.5,35.3,44.2,53,61.9,70.7,79.5,88.4,97.2,106,132.5

150,25.4,38.2,50.9,63.6,76.3,89.1,101.8,114.5,127.2,140,152.7,190.9

200,45.2,67.9,90.5,113.1,135.7,158.3,181,203.6,226.2,248.8,271.4,339.3

250,70.7,106,141.4,176.7,212.1,247.4,282.7,318.1,353.4,388.8,424.1,530.1

300,101.8,152.7,203.6,254.5,305.4,356.3,407.1,458,508.9,559.8,610.7,763.4

350,138.5,207.8,277.1,346.4,415.6,484.9,554.2,623.4,692.7,762,831.3,1039.1

400,181,271.4,361.9,452.4,542.9,633.3,723.8,814.3,904.8,995.3,1085.7,1357.2

450,229,343.5,458,572.6,687.1,801.6,916.1,1030.6,1145.1,1259.6,1374.1,1717.7

500,282.7,424.1,565.5,706.9,848.2,989.6,1131,