1、p水錘最大壓力 MpaC0水中聲波的傳播速度C0=1435m/s（水溫10壓強(qiáng)0.1MPa2.5MPa)C水擊波的傳播速度m/sv管道中水流速度m/s水的密度kg/m3K水的體積彈性模量K=2.1*109E管道的材料彈性模量，鋼管=20.6*1010dj管道的公稱直徑，mm管道壁厚，mm水錘最大壓力：p=*v*C0/(1+(K*dj)/(E*)0.5水水錘錘壓壓力力計(jì)計(jì)算算表表水流速度聲波的水的體積管道管道壁厚管材的水擊波的水錘傳播速度彈性模量 公稱直徑彈性模量 傳播速度 最大壓力m/sm/sPammmmPam/sMpavC0KdjECp1.714352.1E+0915062.06E+11 1

2、281.02.18214352.1E+0915062.06E+11 1281.02.56214352.1E+0915062.06E+11 1281.02.56214352.1E+0915062.06E+11 1281.02.56214352.1E+0915062.06E+11 1281.02.561.1.水水流流速速度度越越大大水水錘錘壓壓力力越越大大2.2.同同樣樣流流速速管管徑徑越越小小水水錘錘壓壓力力越越大大3.3.管管道道壁壁厚厚越越厚厚水水錘錘壓壓力力越越大大4.4.水水錘錘壓壓力力與與水水流流速速度度呈呈線線性性關(guān)關(guān)系系，影影響響明明顯顯減減壓壓孔孔板板水水力力計(jì)計(jì)算算表表孔徑管徑

3、計(jì)算管徑流量管道流速 孔板流速 阻力損失d(mm)D(mm)Dj(mm)L/sm/sm/sm4515015530.01.5918.8647.644012513025.01.8819.8952.8752.510010530.03.4613.8619.81258079.58.01.6116.3037.692370675.01.4212.0320.351050521.50.7119.1073.031840402.51.999.8212.77253234.752.02.114.071.17525261.01.8850.93839.0682020.250.82.4815.9249.9651514.750

4、.21.1710.1931.31減減壓壓孔孔板板水水力力計(jì)計(jì)算算表表孔徑管徑計(jì)算管徑流量管道流速 孔板流速 阻力損失d(mm)D(mm)Dj(mm)L/sm/sm/sm4515015530.01.5918.8647.645015015530.01.5915.2830.125115015530.01.5914.6927.615315015530.01.5913.6023.315515015530.01.5912.6319.785615015530.01.5912.1818.266015015530.01.5910.6113.406415015530.01.599.339.997015015530

5、.01.597.806.598015015530.01.595.973.46節(jié)節(jié)流流管管的的水水力力計(jì)計(jì)算算干管干管節(jié)流管節(jié)流管內(nèi)節(jié)流管節(jié)流管流量管徑 管徑DN(mm) 平均流速長(zhǎng)度總損失L/Smm計(jì)算管徑Dg m/secmm241502545.231.00324.5826151003215.821.0030.0634.75241004019.111.2043.814020100509.421.007.605227150707.661.004.206723150804.641.001.3879.5231501002.661.000.39105注：管徑中DN25=Dg26,DN32=Dg34.7

6、5,DN40=Dg40,DN50=Dg52DN70=Dg67,DN80=Dg79.5,DN100=Dg105 管道中當(dāng)流速大于20m/sec時(shí)超標(biāo)底板呈橙色水力計(jì)算表達(dá)西公式計(jì)算區(qū)水的溫度達(dá)西公式i=10-6*(*v2)/(/(2*dj)柯列布羅克1/0.5=-2*log(2.51/(Re*0.5)+(/(3.71*dj)懷特公式1010管道流量管道計(jì)算管道流速雷諾數(shù)沿程損失柯列布羅克-懷特公式水的運(yùn)動(dòng)粘滯系數(shù)內(nèi)徑阻力系數(shù)1.30601E-061.30601E-06Q m/sdj (m)v （m/s)Re試算等式左球墨鑄鐵管0.010.11.2797490.6970.022206.7120.0

7、150.11.91146236.040.021506.8200.020.151.13129987.60.020407.0010.0250.151.41162484.490.020007.071（內(nèi)襯水泥）0.030.151.70194981.390.019607.1430.040.21.27194981.390.018807.2930.060.21.91292472.090.018207.4120.070.251.43272973.950.017807.495鍍鋅鋼管0.0050.0671.4272754.2510.026206.1780.010.1051.1592848.2830.02360

8、6.5090.0150.1051.73139272.420.023036.5900.020.1551.06125794.450.021526.8170.0250.1551.32157243.060.021326.8490.030.1551.59188691.670.020986.9040.0350.1551.85220140.280.020706.9500.040.1552.12251588.890.020706.950鍍鋅鋼管0.0050.06551.4874420.3790.026206.1780.010.1031.2094651.1620.023706.4960.0150.1031.80

9、141976.740.023006.5940.020.1531.09127438.820.021566.8100.0250.1531.36159298.520.021326.8490.030.1531.63191158.230.020986.904(加厚)0.0350.1531.90223017.930.020746.9440.040.1532.18254877.640.020706.950無縫鋼管0.0050.0661.4673856.5880.035605.3000.010.0792.04123405.950.033305.4800.010.0991.3098475.4510.031405

10、.6430.0150.0991.95147713.180.031205.6610.020.1471.18132640.40.028005.9760.030.2030.93144074.920.025806.2260.040.2031.24192099.890.025606.2500.070.2531.39269737.110.024006.4550.010.0991.3098475.4510.019507.161鋼絲網(wǎng)骨架PE管0.0150.0991.95147713.180.018467.3600.020.1481.16131744.180.018147.4250.0250.1481.451

11、64680.230.017607.5380.030.1481.74197616.280.017177.632公稱壓力：1.0MPa0.040.1882.33263488.370.016507.7850.060.1882.16311140.520.015907.9310.070.2292.52362997.270.015608.006說明：1.本表格是新消防規(guī)范第10.1節(jié)的水力計(jì)算，包括達(dá)西公式、海澄公式及謝才公式2.三計(jì)算公式的達(dá)西公式中以的計(jì)算最為繁瑣，本表先在F列設(shè)定一個(gè)值 然后以此值計(jì)算柯列布魯克-懷特公式等式兩邊的數(shù)值即G列及H列3.再以G列H列之和的0.5值反求值得I列數(shù)值4.將上

12、述I列數(shù)值回填到同行的F列，如此反復(fù)可以使得H列數(shù)值逐步逼近G列,當(dāng)此兩列差值在0.01時(shí)則H列的底版呈綠色，計(jì)算完成，也就得到沿程損失I值。5.至于海澄公式及謝才公式均是普通的excel計(jì)算。6.表中的管徑流量均為消防給水系統(tǒng)常用的數(shù)值，如有不同科自行更改7.管道材料也按照規(guī)范及我們平時(shí)使用的管材選擇8.表格中紅色粗體字請(qǐng)不要移動(dòng)位置海澄公式謝才公式計(jì)算區(qū)計(jì)算區(qū)管道當(dāng)量粗糙度= 0.00010.0001管道粗糙系數(shù)ng0.0120.012取值沿程損失海澄公式謝才公式沿程損失等式右i (mm/m) i (mm/m) 沿程損失i (mm/m)6.7080.0222118.019.031.96.8

13、250.0214839.240.371.97.0040.020398.79.514.77.0780.0199813.314.423.07.1320.0196318.920.233.17.2820.018837.68.512.77.4050.0182216.618.028.57.5050.017787.28.111.8C=130管道當(dāng)量粗糙度：= 0.000156.1760.0262139.343.0填寫數(shù)據(jù)6.5020.0236315.017.46.5950.0230132.936.96.8030.021567.89.4試算填寫6.8630.0212712.014.26.9050.020981

14、7.120.06.9370.0207423.026.6當(dāng)G、H列誤差0.016.9620.0206630.034.0G列自動(dòng)顯現(xiàn)綠底板C=120管道當(dāng)量粗糙度：= 0.00015達(dá)西公式6.1660.0262544.148.0沿程損失值6.4960.0237016.619.16.5860.0230336.240.5海澄公式6.7990.021608.410.0沿程損失值6.8590.0212912.915.26.9000.0209918.321.3謝才公式6.9310.0207824.628.3沿程損失值6.9560.0206832.036.2C=120管道當(dāng)量粗糙度：= 0.000505.3

15、060.0355657.564.85.4810.0332987.797.45.6450.0313926.832.55.6730.0311459.768.85.9740.0280113.217.16.2240.025815.536.26.2550.025589.612.86.4540.024009.236.1C=100達(dá)西公式計(jì)算區(qū)1/0.5=-2*log(2.51/(Re*0.5)+(/(3.71*dj)柯列布羅克-懷特公式管道當(dāng)量粗糙度：= 0.000037.1560.0195116.617.47.3690.0184435.436.97.4150.018168.38.97.5420.0175

16、912.613.47.6390.0171517.618.87.8620.0163429.832.07.9410.0158819.721.28.0850.0154526.128.2C=1401.本表格是新消防規(guī)范第10.1節(jié)的水力計(jì)算，包括達(dá)西公式、海澄公式及謝才公式2.三計(jì)算公式的達(dá)西公式中以的計(jì)算最為繁瑣，本表先在F列設(shè)定一個(gè)值3.再以G列H列之和的0.5值反求值得I列數(shù)值4.將上述I列數(shù)值回填到同行的F列，如此反復(fù)可以使得H列數(shù)值逐步逼近G列,當(dāng)此兩列差值在0.01時(shí)則H列的底版呈綠色，計(jì)算完成，也就得到沿程損失I值。5.至于海澄公式及謝才公式均是普通的excel計(jì)算。6.表中的管徑流量均為消防給水系統(tǒng)常用的數(shù)值，如有不同科自行更改7.管道材料也按照規(guī)范及我們平時(shí)使用的管材選擇水的溫度10水的運(yùn)動(dòng)粘滯系數(shù)1.30601E-06等式誤差0.000010.0050.0671.4272754.2512兩邊誤差0.050.0050.0671.4272754.2512誤差0.010.0050.0671.4272754.2512現(xiàn)現(xiàn)在在計(jì)計(jì)算算采采