第8章高层建筑给水排水设计实例

1、第8章 高层建筑给水排水设计实例v8.1设计任务及设计资料设计任务及设计资料v8.2设计说明设计说明v8.3 设计计算设计计算8.1设计任务及设计资料v8.1.1设计任务设计任务v8.1.2 设计的基础资料设计的基础资料8-1宾馆建筑剖面示意图8.2设计说明v8.2.1 室内给水工程室内给水工程v8.2.2 室内热水工程室内热水工程v8.2.3 消火栓给水系统消火栓给水系统 v8.2.4 自动喷水灭火系统自动喷水灭火系统 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 设计计算v8.3.1 室内给水系统室内给水系统（1）用水量计算）用水量计算 3335.13%254

2、 .53%25mmQVd表8-1 用水量计算表序号用水类别用水定额q0用水单位m用水时间T/h时变化系数kh最高日用水量Qd/(m3/d)最高时用水量Qh/(m3/h)1商场（1F）6 L/(m2d)392m2121.22.350.242快餐厅（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宾馆(4F9F)350 L/(每床每日)110床242.438.503.855普通办公(9F11F)40L/(每人每班)55人81.22.20.336合 计53.45.42（2）给水管网的水力计算图8-2 冷水系

3、统计算草图 giNigiNigiNgiN表8-2 宾馆、办公楼、商场、KTV部分值计算表功能值宾馆2.583207.5260109.5办公楼、商场1.51827KTV3.08.525.54 . 25 .109260igigiNNgggNNq48. 04 . 22 . 01表8-3 快餐厅部分设计流量计算表（1822管段间流量）卫生器具个数（n0）同时给水百分数（b）给水额定流量（q0）设计流量（qg）洗脸盆350%0.150.225拖布盆250%0.200.2大便器330%0.100.09洗涤盆2070%0.202.8sLbnqqg/32. 300表8-4 给水最不利管段流量计算表N顺序编号管

4、段编号卫生器具卫生器具名称、数量、当量当量总数设计秒流量q(L/s)当量小便器大便器拖布盆洗脸盆浴盆自至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 给水最不利管段水力计算表前编号后编号当量(N)流量(L/s)管径(DN)流速(m/s)坡度(MPa/m)管长(m)值水头损失(MPa)前压(MPa)后压(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 向屋顶消防水箱供水时段水力计算表管段管长(m)秒流量(L/s)管径(mm)流速(m/s)坡度(kPa/m)水头损失(kPa)222118.93.5DN1000.420.020.278211812.63.5DN800.630.0550.69318166.73.5DN700.910.1310.878162332.33.5DN501.330.32210.400沿程水头损失总和12.249v8.3.2 室内热水系统室内热水系统 图8-3 热水系统水力计算草图表8-8热水配水管网水力计算前编号后编号当量(N)流量(

10、l/s)管径(DN)流速(m/s)坡度(MPa/m)管长(m)值水损(MPa)前压(MPa)后压(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热水配水最不利支管路计算前编号后编号当量(N)流量(l/s)管径(DN)流速(m/s)坡度(MPa/m)管长(m)值水损(MPa)前压(MPa)后压(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 热水配水管路热损失及循环流量计算节点管段编号管长管径外径展开表面积保温系数节点水温平均水温空气温度温差热损失循环流量(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 侧立管热损失计算表节点管段编号管长管径外径展开表面积保温系数节点水温平均水温空气温度温差热损失(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 热水管网回水管管径选用表配水管管径（mm）20253240506580100125150200回水管管径（mm）20202532404050

23、6580100表8-13热水供水管路循环流量计算前编号后编号管长(m)循环流量(L/h)循环流量(L/s)管径(DN)流速（m/s）水力坡度（Pa/m）压力损失（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沿程水头损失总和3.33表8-14热水回水管路循环流量计算前编号后编号管长(m)循环流量(L/h)循环流量(L/s)管径(DN)流速（m/s）水力坡度（Pa/m）压力损失（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沿程压力损失总和21.17v8.3.3 消防灭火系统消防灭火系统8.3.3.1 消火栓灭火系统消火栓灭火系统（1）消火栓的布置）消火栓的布置mmR23)3258 . 0(图8-4 消火栓系统最不利管路水力计算草图（2）水枪喷嘴处所需的水压qxhBHqkPaOmHOmHHq5 .15885.15577. 15222（3）充实水柱长度HmOmHOmHOmHHm2221045.11)85.150097. 01 (2 . 185.154）水带阻力 kPaOmHOmHhd7

26、5.10075. 152500172. 02225）消火栓口所需的水压kPakPaHxh25.189)2075.105 .158(6）水枪射流量计算kPaHhHHkdqxh25.1890管段的水头损失）（点的消火栓间距和10h)10(01HHHxhxh7）水泵供水工况计算表8-15 水泵供水工况计算表计算管段设计秒流量q（L/s）管长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沿程压力损失之和13.7488）水箱供水工况计算表8-16 水箱供水工况计算表计算管段设计秒流量q（L

28、/s）管长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沿程压力损失之和0.6489）减压孔板的计算表8-17 消火栓的动水压力和过剩水压计算消火栓编号10层9层8层7层6层5层4层3层2层1层1层动水压（kPa）229.29265.62299.60333.58367.57401.55435.53475.70516.64559.12585.37过剩水压（kPa）266

29、.64309.12335.37孔板孔径（mm）191919减压后消火栓出口压力288.84331.32357.578.3.3.2 自动喷水灭火系统自动喷水灭火系统（1）设计参数的选择）设计参数的选择 （2）水力计算）水力计算图8-5 喷淋系统最不利管路水力计算草图 表8-18 喷淋系统最不利管路水力计算 管段编号设计流量Q（L/s）管径DN（mm）流速系数Ko流速v(m/s)水力坡度i（KPa/m）管长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喷淋泵供水的最不利管路沿程水头损失总和216.2喷淋泵供水的最不利管路水头损失总和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增压设施供水的最不利管路沿程水头损失总和19.47增压设施供水的最不利管路水头损失总和19.471.20=23.36kPa（3）自动喷水灭火系统水泵的流量和扬程 hmsLQb/40.81/61.223自动喷水灭火系统设计流量 自动喷水灭火系统的设计扬程HbZhPHb0kPakPaHb44.849)44