第8章高層建筑給水排水設計實例

1、第8章 高層建筑給水排水設計實例v8.1設計任務及設計資料設計任務及設計資料v8.2設計說明設計說明v8.3 設計計算設計計算8.1設計任務及設計資料v8.1.1設計任務設計任務v8.1.2 設計的基礎資料設計的基礎資料8-1賓館建筑剖面示意圖8.2設計說明v8.2.1 室內(nèi)給水工程室內(nèi)給水工程v8.2.2 室內(nèi)熱水工程室內(nèi)熱水工程v8.2.3 消火栓給水系統(tǒng)消火栓給水系統(tǒng) v8.2.4 自動噴水滅火系統(tǒng)自動噴水滅火系統(tǒng) v8.2.5 排水工程排水工程v8.2.6 雨水排水工程雨水排水工程8.3 設計計算v8.3.1 室內(nèi)給水系統(tǒng)室內(nèi)給水系統(tǒng)（1）用水量計算）用水量計算 3335.13%254

2、 .53%25mmQVd表8-1 用水量計算表序號用水類別用水定額q0用水單位m用水時間T/h時變化系數(shù)kh最高日用水量Qd/(m3/d)最高時用水量Qh/(m3/h)1商場（1F）6 L/(m2d)392m2121.22.350.242快餐廳（1F2F）25 L/(每人每次)300人121.27.500.753KTV(3F)15 L/(每人每次)190人151.32.850.2474賓館(4F9F)350 L/(每床每日)110床242.438.503.855普通辦公(9F11F)40L/(每人每班)55人81.22.20.336合 計53.45.42（2）給水管網(wǎng)的水力計算圖8-2 冷水系

3、統(tǒng)計算草圖 giNigiNigiNgiN表8-2 賓館、辦公樓、商場、KTV部分值計算表功能值賓館2.583207.5260109.5辦公樓、商場1.51827KTV3.08.525.54 . 25 .109260igigiNNgggNNq48. 04 . 22 . 01表8-3 快餐廳部分設計流量計算表（1822管段間流量）衛(wèi)生器具個數(shù)（n0）同時給水百分數(shù)（b）給水額定流量（q0）設計流量（qg）洗臉盆350%0.150.225拖布盆250%0.200.2大便器330%0.100.09洗滌盆2070%0.202.8sLbnqqg/32. 300表8-4 給水最不利管段流量計算表N順序編號管

4、段編號衛(wèi)生器具衛(wèi)生器具名稱、數(shù)量、當量當量總數(shù)設計秒流量q(L/s)當量小便器大便器拖布盆洗臉盆浴盆自至n/N0.50.51.00.51.012345678910101n/N10.50.10212n/N210.20323n/N211.50.30434n/N2220.40545n/N2430.60656n/N24140.80767n/N241251.00878n/N482291.44989n/N4824101.5210910n/N49251121.66111011n/N410261131.73121112n/N411272151.86131213n/N412282161.92141314n/N4

5、13293182.04151415n/N4142103192.09161516n/N45124740934.63171617n/N6533484096.54.72181718n/N755450401004.80191819n/N755450401008.12201920n/N959552401058.24212021n/N116265440109.58.34222122n/N116265440126.18.71表8-5 給水最不利管段水力計算表前編號后編號當量(N)流量(L/s)管徑(DN)流速(m/s)坡度(MPa/m)管長(m)值水頭損失(MPa)前壓(MPa)后壓(MPa)010.500

6、.10150.500.000252.002.40.00050.05000.0505121.000.20150.990.000906.002.40.00540.05050.0559231.500.30200.790.000401.102.40.00040.05590.0563342.000.40250.610.000181.102.40.00020.05630.0565453.000.60250.910.000383.102.40.00120.05650.0577564.000.80320.790.000233.102.40.00070.05770.0584675.001.00320.980.0

7、00343.902.40.00130.05840.0597111215.001.86401.120.000323.302.40.00110.06250.0636121316.001.92401.160.000343.302.40.00110.06360.0647131418.002.04500.770.000123.302.40.00040.06470.0651141519.002.09500.790.000136.702.40.00090.06510.0660151693.004.63701.200.000230.302.40.00010.06600.0660161796.504.72701

8、.230.000242.502.40.00060.06600.06661718100.004.80701.250.000244.202.40.00100.06660.06771819286.1286.17 78.128.12801.470.000260.302.40.00010.06770.06771920294.6294.69 98.248.24801.490.000275.502.40.00150.06770.06922021301.8301.89 98.348.34801.500.0002812.62.40.00880.06920.07802122318.4318.49 98.718.7

9、11001.050.0001018.92.40.00190.07800.0799表8-6 向屋頂消防水箱供水時段水力計算表管段管長(m)秒流量(L/s)管徑(mm)流速(m/s)坡度(kPa/m)水頭損失(kPa)222118.93.5DN1000.420.020.278211812.63.5DN800.630.0550.69318166.73.5DN700.910.1310.878162332.33.5DN501.330.32210.400沿程水頭損失總和12.249v8.3.2 室內(nèi)熱水系統(tǒng)室內(nèi)熱水系統(tǒng) 圖8-3 熱水系統(tǒng)水力計算草圖表8-8熱水配水管網(wǎng)水力計算前編號后編號當量(N)流量(

10、l/s)管徑(DN)流速(m/s)坡度(MPa/m)管長(m)值水損(MPa)前壓(MPa)后壓(MPa)121.500.30250.560.000203.302.50.00070.05000.0507233.000.60320.720.000253.302.50.00080.05070.0515344.500.90400.720.000193.302.50.00060.05150.0521456.001.20400.950.000333.302.50.00110.05210.0532567.501.37500.670.000133.302.50.00040.05320.0536679.001

11、.50500.730.000151.902.50.00030.05360.0539789.001.50500.730.000154.702.50.00070.05390.054681016.502.03500.990.000271.302.50.00030.05460.0549101224.002.45501.200.000387.302.50.00270.05490.0577121555.503.72651.120.000254.402.50.00110.05770.058815B61.503.92651.180.0002739.202.50.01080.05880.069617A17B1.

12、500.30250.560.000203.302.50.00070.05000.050717B17C3.000.60320.720.000253.302.50.00080.05070.051517C17D4.500.90400.720.000193.302.50.00060.05150.052117D17E6.001.20400.950.000333.302.50.00110.05210.053217E97.501.37500.670.000135.202.50.00070.05320.0538987.501.37500.670.000130.802.50.00010.05380.053919

13、A19B1.500.30250.560.000203.302.50.00070.05000.050719B19C3.000.60320.720.000253.302.50.00080.05070.051519C19D4.500.90400.720.000193.302.50.00060.05150.052119D19E6.001.20400.950.000333.302.50.00110.05210.053219E117.501.37500.670.000135.202.50.00070.05320.053811107.501.37500.670.000130.702.50.00010.053

14、80.053921A21B3.000.60320.720.000253.302.50.00080.05000.050821B21C6.001.20400.950.000333.302.50.00110.05080.051921C21D9.001.50500.730.000153.302.50.00050.05190.052421D21E12.001.73500.850.000203.302.50.00070.05240.053021E21F15.001.94500.950.000243.302.50.00080.05300.053821F1416.502.03500.990.000271.90

15、2.50.00050.05380.0543141216.502.03500.990.000272.002.50.00050.05430.054922A22B3.000.60320.720.000253.302.50.00080.05000.050822B22C6.001.20400.950.000333.302.50.00110.05080.051922C22D9.001.50500.730.000153.302.50.00050.05190.052422D22E12.001.73500.850.000203.302.50.00070.05240.053022E1315.001.94500.9

16、50.000245.202.50.00130.05300.0543131215.001.94500.950.000240.802.50.00020.05430.054523A23B0.500.10200.310.000093.302.50.00030.05000.0503表8-9熱水配水最不利支管路計算前編號后編號當量(N)流量(l/s)管徑(DN)流速(m/s)坡度(MPa/m)管長(m)值水損(MPa)前壓(MPa)后壓(MPa)0.500.10150.690.000631.702.50.00110.05000.051111.500.30250.560.000200.302.50.0001

17、0.05110.0511表8-10 熱水配水管路熱損失及循環(huán)流量計算節(jié)點管段編號管長管徑外徑展開表面積保溫系數(shù)節(jié)點水溫平均水溫空氣溫度溫差熱損失循環(huán)流量(m)(DN)(mm)()()()t（kJ/h）(L/h)123456 789101112 13160123.62533.50.379 060.043030.04 555.4 146.0 260.09233.63242.250.478 060.153030.15 700.4 146.0 360.2343.640480.543 060.273030.27 795.7 146.0 460.33453.640480.543 060.43030.40

18、795.7 146.0 560.46563.650600.679 060.543030.54 994.7 146.0 660.62673.350600.622 060.73030.70 911.8 146.0 760.7778450601.382 0.760.933030.93 331.6 146.0 861.18101.350600.449 0.761.53031.50 107.8 258.2 1061.8910127.350602.523 0.762.533032.53 605.1 368.9 1263.1712154.57075.51.774 0.764.293034.29 469.4

19、644.4 1565.4115B39.27075.515.457 0.767.713037.71 4088.7 774.7 B70表8-11 側(cè)立管熱損失計算表節(jié)點管段編號管長管徑外徑展開表面積保溫系數(shù)節(jié)點水溫平均水溫空氣溫度溫差熱損失(m)(DN)(mm)()()()t（kJ/h）123457 8910111213 17A60.4117A17B3.62533.50.379 060.463030.46 555.4 17B60.517B17C3.63242.250.478 060.563030.56 700.4 17C60.6217C17D3.640480.543 060.683030.68 7

20、95.7 17D60.7417D17E3.640480.543 060.813030.81 795.7 17E60.8717E93.650600.679 060.953030.95 994.7 961.03980.850600.276 0.761.073031.07 66.3 861.119A61.2119A19B3.62533.50.379 061.263031.26 555.4 19B61.319B19C3.63242.250.478 061.363031.36 700.4 19C61.4119C19D3.640480.543 061.483031.48 795.7 19D61.5419D

21、19E3.640480.543 061.613031.61 795.7 19E61.6719E113.650600.679 061.753031.75 994.7 22A62.3822A22B3.63242.250.478 062.443032.44 700.4 22B62.4922B22C3.640480.543 062.563032.56 795.7 22C62.6222C22D3.650600.679 062.73032.70 994.7 22D62.7822D22E3.650600.679 062.863032.86 994.7 22E62.9422E133.650600.679 06

22、3.023033.02 994.7 1363.113120.850600.276 0.763.143033.14 66.3 1263.1723A64.4923A23B3.62026.750.302 064.533034.53 443.5 23B64.5723B23C3.62533.50.379 064.613034.61 555.4 23C64.6623C23D3.62533.50.379 064.73034.70 555.4 23D64.75表8-12 熱水管網(wǎng)回水管管徑選用表配水管管徑（mm）20253240506580100125150200回水管管徑（mm）20202532404050

23、6580100表8-13熱水供水管路循環(huán)流量計算前編號后編號管長(m)循環(huán)流量(L/h)循環(huán)流量(L/s)管徑(DN)流速（m/s）水力坡度（Pa/m）壓力損失（Pa）B1539.2774.70.21519700.070.0230.9015244.0130.30.03619400.030.0130.052423F3.6130.30.03619400.030.0130.0523F23E3.6130.30.03619400.030.0130.0523E23D3.6130.30.03619320.040.0250.0923D23C3.6130.30.03619250.070.1070.3923C23

24、B3.6130.30.03619250.070.1070.3923B23A3.6130.30.03619200.130.3931.41沿程水頭損失總和3.33表8-14熱水回水管路循環(huán)流量計算前編號后編號管長(m)循環(huán)流量(L/h)循環(huán)流量(L/s)管徑(DN)流速（m/s）水力坡度（Pa/m）壓力損失（Pa）23A232.5130.30.03619250.070.1070.3923203.85130.30.03619250.070.1070.3920187.77405.80.11272320.130.1831.4218161.55516.50.14347320.160.2800.431603

25、.66628.70.17464400.150.2000.7302461.85774.70.21519400.180.28817.81沿程壓力損失總和21.17v8.3.3 消防滅火系統(tǒng)消防滅火系統(tǒng)8.3.3.1 消火栓滅火系統(tǒng)消火栓滅火系統(tǒng)（1）消火栓的布置）消火栓的布置mmR23)3258 . 0(圖8-4 消火栓系統(tǒng)最不利管路水力計算草圖（2）水槍噴嘴處所需的水壓qxhBHqkPaOmHOmHHq5 .15885.15577. 15222（3）充實水柱長度HmOmHOmHOmHHm2221045.11)85.150097. 01 (2 . 185.154）水帶阻力 kPaOmHOmHhd7

26、5.10075. 152500172. 02225）消火栓口所需的水壓kPakPaHxh25.189)2075.105 .158(6）水槍射流量計算kPaHhHHkdqxh25.1890管段的水頭損失）（點的消火栓間距和10h)10(01HHHxhxh7）水泵供水工況計算表8-15 水泵供水工況計算表計算管段設計秒流量q（L/s）管長L（m）DNV（m/s）I（kPa/m）iL（kPa）01513.31000.580.07490.996125.563.61000.640.0910.3282310.563.31001.220.2980.9833410.563.31001.220.2980.983

27、4510.563.31001.220.2980.9835610.563.31001.220.2980.9836710.563.31001.220.2980.9837810.563.91001.220.2981.1628910.566.51001.220.2981.93791010.561.61001.220.2980.477101110.564.21001.220.2981.252111210.5651500.6220.0550.277121321.12121501.2440.2002.404沿程壓力損失之和13.7488）水箱供水工況計算表8-16 水箱供水工況計算表計算管段設計秒流量q（L

28、/s）管長L（m）DNV（m/s）I（kPa/m）iL（kPa）052.81000.5770.0750.2152.41500.2950.0140.035515.11500.2950.0140.21857.21500.2950.0140.10455.61500.2950.0140.081沿程壓力損失之和0.6489）減壓孔板的計算表8-17 消火栓的動水壓力和過剩水壓計算消火栓編號10層9層8層7層6層5層4層3層2層1層1層動水壓（kPa）229.29265.62299.60333.58367.57401.55435.53475.70516.64559.12585.37過剩水壓（kPa）266

29、.64309.12335.37孔板孔徑（mm）191919減壓后消火栓出口壓力288.84331.32357.578.3.3.2 自動噴水滅火系統(tǒng)自動噴水滅火系統(tǒng)（1）設計參數(shù)的選擇）設計參數(shù)的選擇 （2）水力計算）水力計算圖8-5 噴淋系統(tǒng)最不利管路水力計算草圖 表8-18 噴淋系統(tǒng)最不利管路水力計算 管段編號設計流量Q（L/s）管徑DN（mm）流速系數(shù)Ko流速v(m/s)水力坡度i（KPa/m）管長L(m)Hy=iL(kPa)自至011.33251.8832.507.6883.224.6122.66321.052.796.5673.221.0233.99400.83.197.1500.75

30、5.4343.99400.83.197.1503.424.34510.64500.475.0012.489337.55617.29800.2043.533.585310.86722.611000.1152.601.35511.8416.07822.611000.1152.601.35543.158.48922.611000.1152.601.35513.418.2噴淋泵供水的最不利管路沿程水頭損失總和216.2噴淋泵供水的最不利管路水頭損失總和216.21.20=259.44kPa011.0251.8831.8834.3613313.213.96121.0321.051.050.9300823

31、.22.98231.0400.80.80.4496620.750.34341.0400.80.80.4496623.41.53451.0500.470.470.11035130.33561.0800.2040.2040.01197230.04671.01000.1150.1150.0026511.840.03781.01000.1150.1150.0026543.10.118101.01000.1150.1150.0026554.80.15增壓設施供水的最不利管路沿程水頭損失總和19.47增壓設施供水的最不利管路水頭損失總和19.471.20=23.36kPa（3）自動噴水滅火系統(tǒng)水泵的流量和揚程 hmsLQb/40.81/61.223自動噴水滅火系統(tǒng)設計流量 自動噴水滅火系統(tǒng)的設計揚程HbZhPHb0kPakPaHb44.849)44