高层建筑给水排水工程 教学课件 作者 李亚峰 等 第8章 高层建筑给水排水设计实例.ppt 49页

'第8章高层建筑给水排水设计实例8.1设计任务及设计资料8.2设计说明8.3设计计算 8.1设计任务及设计资料8.1.1设计任务8.1.2设计的基础资料 8-1宾馆建筑剖面示意图 8.2设计说明8.2.1室内给水工程8.2.2室内热水工程8.2.3消火栓给水系统8.2.4自动喷水灭火系统8.2.5排水工程8.2.6雨水排水工程 8.3设计计算8.3.1室内给水系统（1）用水量计算 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）6L/(m2·d)392m2121.22.350.242快餐厅（1F～2F）25L/(每人·每次)300人121.27.500.753KTV(3F)15L/(每人·每次)190人151.32.850.2474宾馆(4F～9F)350L/(每床·每日)110床242.438.503.855普通办公(9F～11F)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冷水系统计算草图 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1.51827KTV3.08.525.5 表8-3快餐厅部分设计流量计算表（18～22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%0.202.8 表8-4给水最不利管段流量计算表顺序编号管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/N49251121.66 111011n/N410261131.73121112n/N411272151.86131213n/N412282161.92141314n/N413293182.04151415n/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)α值水头损失(MPa)前压(MPa)后压(MPa)010.500.10150.500.000252.002.40.00050.05000.0505121.000.20150.990.000906.002.40.00540.05050.0559231.500.30200.790.000401.102.40.00040.05590.0563342.000.40250.610.000181.102.40.00020.05630.0565453.000.60250.910.000383.102.40.00120.05650.0577564.000.80320.790.000233.102.40.00070.05770.0584675.001.00320.980.000343.902.40.00130.05840.0597789.001.44400.870.000200.702.40.00010.05970.05998910.001.52400.910.000223.602.40.00080.05990.060791012.001.66401.000.000263.302.40.00090.06070.0615101113.001.73401.040.000283.302.40.00090.06150.0625 111215.001.86401.120.000323.302.40.00110.06250.0636121316.001.92401.160.000343.302.40.00110.06360.0647131418.002.04500.770.000123.302.40.00040.06470.0651141519.002.09500.790.000136.702.40.00090.06510.0660151693.004.63701.200.000230.302.40.00010.06600.0660161796.504.72701.230.000242.502.40.00060.06600.06661718100.004.80701.250.000244.202.40.00100.06660.06771819286.178.12801.470.000260.302.40.00010.06770.06771920294.698.24801.490.000275.502.40.00150.06770.06922021301.898.34801.500.0002812.62.40.00880.06920.07802122318.498.711001.050.0001018.92.40.00190.07800.0799 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)22～2118.93.5DN1000.420.020.27821～1812.63.5DN800.630.0550.69318～166.73.5DN700.910.1310.87816～2332.33.5DN501.330.32210.400沿程水头损失总和12.249 8.3.2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(l/s)管径(DN)流速(m/s)坡度(MPa/m)管长(m)α值水损(MPa)前压(MPa)后压(MPa)121.500.30250.560.000203.302.50.00070.05000.0507233.000.60320.720.000253.302.50.00080.05070.0515344.500.90400.720.000193.302.50.00060.05150.0521456.001.20400.950.000333.302.50.00110.05210.0532567.501.37500.670.000133.302.50.00040.05320.0536679.001.50500.730.000151.902.50.00030.05360.0539789.001.50500.730.000154.702.50.00070.05390.054681016.502.03500.990.000271.302.50.00030.05460.0549101224.002.45501.200.000387.302.50.00270.05490.0577121555.503.72651.120.000254.402.50.00110.05770.058815B61.503.92651.180.0002739.202.50.01080.05880.0696 17A17B1.500.30250.560.000203.302.50.00070.05000.050717B17C3.000.60320.720.000253.302.50.00080.05070.051517C17D4.500.90400.720.000193.302.50.00060.05150.052117D17E6.001.20400.950.000333.302.50.00110.05210.053217E97.501.37500.670.000135.202.50.00070.05320.0538987.501.37500.670.000130.802.50.00010.05380.053919A19B1.500.30250.560.000203.302.50.00070.05000.050719B19C3.000.60320.720.000253.302.50.00080.05070.051519C19D4.500.90400.720.000193.302.50.00060.05150.052119D19E6.001.20400.950.000333.302.50.00110.05210.053219E117.501.37500.670.000135.202.50.00070.05320.053811107.501.37500.670.000130.702.50.00010.05380.053921A21B3.000.60320.720.000253.302.50.00080.05000.050821B21C6.001.20400.950.000333.302.50.00110.05080.051921C21D9.001.50500.730.000153.302.50.00050.05190.052421D21E12.001.73500.850.000203.302.50.00070.05240.053021E21F15.001.94500.950.000243.302.50.00080.05300.053821F1416.502.03500.990.000271.902.50.00050.05380.0543141216.502.03500.990.000272.002.50.00050.05430.054922A22B3.000.60320.720.000253.302.50.00080.05000.050822B22C6.001.20400.950.000333.302.50.00110.05080.051922C22D9.001.50500.730.000153.302.50.00050.05190.052422D22E12.001.73500.850.000203.302.50.00070.05240.053022E1315.001.94500.950.000245.202.50.00130.05300.0543131215.001.94500.950.000240.802.50.00020.05430.054523A23B0.500.10200.310.000093.302.50.00030.05000.050323B23C2.000.40250.740.000343.302.50.00110.05030.051423C23D2.500.50250.930.000513.302.50.00170.05140.053123D23E4.000.80320.960.000423.302.50.00140.05310.054523E23F4.500.90400.720.000193.302.50.00060.05450.055123F246.001.20400.950.000331.902.50.00060.05510.055724156.001.20400.950.000332.102.50.00070.05570.0564 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)α值水损(MPa)前压(MPa)后压(MPa)ⅠⅡ0.500.10150.690.000631.702.50.00110.05000.0511Ⅱ11.500.30250.560.000200.302.50.00010.05110.0511 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)123456789101112131601～23.62533.50.379060.043030.04555.4146.0260.092～33.63242.250.478060.153030.15700.4146.0360.2 3～43.640480.543060.273030.27795.7146.0460.334～53.640480.543060.43030.40795.7146.0560.465～63.650600.679060.543030.54994.7146.0660.626～73.350600.622060.73030.70911.8146.0760.777～8450601.3820.760.933030.93331.6146.0861.18～101.350600.4490.761.53031.50107.8258.21061.8910～127.350602.5230.762.533032.53605.1368.91263.1712～154.57075.51.7740.764.293034.29469.4644.41565.4115～B39.27075.515.4570.767.713037.714088.7774.7B70 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）123457891011121317A60.4117A～17B3.62533.50.379060.463030.46555.417B60.517B～17C3.63242.250.478060.563030.56700.417C60.6217C～17D3.640480.543060.683030.68795.717D60.74 17D～17E3.640480.543060.813030.81795.717E60.8717E～93.650600.679060.953030.95994.7961.039～80.850600.2760.761.073031.0766.3861.119A61.2119A～19B3.62533.50.379061.263031.26555.419B61.319B～19C3.63242.250.478061.363031.36700.419C61.4119C～19D3.640480.543061.483031.48795.719D61.5419D～19E3.640480.543061.613031.61795.719E61.6719E～113.650600.679061.753031.75994.71161.8311～100.750600.2420.761.863031.8658.01061.8921A61.9821A～21B3.63242.250.478062.043032.04700.421B62.121B～21C3.640480.543062.163032.16795.721C62.2221C～21D3.650600.679062.393032.39994.721D62.5521D～21E3.650600.679062.633032.63994.721E62.7121E～21F3.650600.679062.793032.79994.721F62.8721F～143.650600.679062.953032.95994.71463.0314～121.750600.5880.763.13033.10140.91263.17 22A62.3822A～22B3.63242.250.478062.443032.44700.422B62.4922B～22C3.640480.543062.563032.56795.722C62.6222C～22D3.650600.679062.73032.70994.722D62.7822D～22E3.650600.679062.863032.86994.722E62.9422E～133.650600.679063.023033.02994.71363.113～120.850600.2760.763.143033.1466.31263.1723A64.4923A～23B3.62026.750.302064.533034.53443.523B64.5723B～23C3.62533.50.379064.613034.61555.423C64.6623C～23D3.62533.50.379064.73034.70555.423D64.7523D～23E3.63242.250.478064.83034.80700.423E64.8623E～23F3.640480.543064.923034.92795.723F64.9923F～243.640480.543065.053035.05795.72465.1224～15440481.2310.765.263035.26265.21565.41 表8-12热水管网回水管管径选用表配水管管径（mm）20～253240506580100125150200回水管管径（mm）202025324040506580100 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）B1539.2774.70.21519700.070.0230.9015244.0130.30.03619400.030.0130.052423F3.6130.30.03619400.030.0130.0523F23E3.6130.30.03619400.030.0130.0523E23D3.6130.30.03619320.040.0250.0923D23C3.6130.30.03619250.070.1070.3923C23B3.6130.30.03619250.070.1070.3923B23A3.6130.30.03619200.130.3931.41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）23A232.5130.30.03619250.070.1070.3923203.85130.30.03619250.070.1070.3920187.77405.80.11272320.130.1831.4218161.55516.50.14347320.160.2800.431603.66628.70.17464400.150.2000.7302461.85774.70.21519400.180.28817.81沿程压力损失总和21.17 8.3.3消防灭火系统8.3.3.1消火栓灭火系统（1）消火栓的布置 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 （3）充实水柱长度Hm4）水带阻力 5）消火栓口所需的水压6）水枪射流量计算7）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）i﹒L（kPa）0－1513.31000.580.07490.9961－25.563.61000.640.0910.3282－310.563.31001.220.2980.9833－410.563.31001.220.2980.9834－510.563.31001.220.2980.9835－610.563.31001.220.2980.9836－710.563.31001.220.2980.9837－810.563.91001.220.2981.1628－910.566.51001.220.2981.9379－1010.561.61001.220.2980.47710－1110.564.21001.220.2981.25211－1210.5651500.6220.0550.27712－1321.12121501.2440.2002.404沿程压力损失之和13.748 8）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/s）管长L（m）DNV（m/s）I（kPa/m）i﹒L（kPa）0－Ⅰ52.81000.5770.0750.21Ⅰ－Ⅱ52.41500.2950.0140.035Ⅱ－Ⅲ515.11500.2950.0140.218Ⅲ－Ⅳ57.21500.2950.0140.104Ⅳ－Ⅴ55.61500.2950.0140.081沿程压力损失之和0.648 9）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）266.64309.12335.37孔板孔径（mm）191919减压后消火栓出口压力288.84331.32357.57 8.3.3.2自动喷水灭火系统（1）设计参数的选择（2）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011.33251.8832.507.6883.224.6122.66321.052.796.5673.221.0233.99400.83.197.1500.755.4343.99400.83.197.1503.424.34510.64500.475.0012.489337.55617.29800.2043.533.585310.86722.611000.1152.601.35511.8416.07822.611000.1152.601.35543.158.48922.611000.1152.601.35513.418.2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216.2×1.20=259.44kPa 011.0251.8831.8834.3613313.213.96121.0321.051.050.9300823.22.98231.0400.80.80.4496620.750.34341.0400.80.80.4496623.41.53451.0500.470.470.11035130.33561.0800.2040.2040.01197230.04671.01000.1150.1150.0026511.840.03781.01000.1150.1150.0026543.10.118101.01000.1150.1150.0026554.80.15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19.47×1.20=23.36kPa （3）自动喷水灭火系统水泵的流量和扬程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Hb （4）增压稳压设施的选取（5）低层减压孔板计算从略。（6）水泵接合器选取（7）屋顶水箱容积计算（8）消防蓄水量（9）防超压措施 8.3.4室内排水系统（1）排水管径确定（2）排水设计秒流量（3）排水立管水力计算（4）排水横管水力计算（5）通气管 图8-6排水系统图 表8-19排水立管水力计算表立管编号总当量数(Ng)设计秒流量(L/s)管径(de)PL182.503.13110PL241.252.66110PL350.302.78110PL490.753.21110PL541.252.66110PL649.502.77110PL7405.25.12160 表8-20排水横管的水力计算表前编号后编号当量(Ng)流量(l/s)管径(de)充满度h/D流速(m/s)坡度(m/m)AB50.302.781600.3210.550.003AC305.254.641600.4230.640.003CD90.753.211600.3470.580.003AE355.554.891600.4350.650.003EF367.354.951600.2481.410.026GH421.85.201600.2551.440.026 表8-21汇合通气管计算表前编号后编号计算过程管径(de)KL160LM160MN160 8.3.5雨水排水系统（1）系统组成（2）降雨强度（3）屋面雨水汇水面积F划分原则（4）雨水立管的布置（5）水力计算 图8-7雨水排水系统图 表8-22雨水排水系统水力计算雨水立管编号汇水面积F（m2）雨水量Q(L/s)雨水斗雨水连接管管径de（mm）雨水立管雨水排出管管径DN（mm）最大泄流量（L/s）管径de（mm）最大泄流量（L/s）管径de（mm）坡度（i）最大泄流量（L/s）YL11365.471001611011015.981600.0218.74YL21987.971001611011015.981600.0218.74 8.3.6宾馆客房平面图及给排水系统图图8-8宾馆客房给水排水平面图 图8-9宾馆客房给排水系统图'