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建筑给水排水工程课程设计说明书专业:建筑环境与设备工程题目:26号住宅给排水设计姓名:学号:指导教师:一、题目及要求某小区26号楼给水排水系统设计1、此楼为6层楼高,底部为车库,顶楼为阁楼布局的多层结构。2、常年供水压力为270kPa,小区供水主干管在北侧,其管径为DN300;当地冰冻深度为1m。3、图量:一层给水排水平面图;2-6层给排水平面图;给排水系统图。(全部计算机绘图)数据采用书后表格。二、设计过程说明1、给水工程根据设计资料,已知室外给水管网常年可保证的工作水压为270kPa,故室内给水采用由室外给水管网直接供水,采用下行上给方式。2、排水工程室内排水系统拟使生活污水与生活废水合流排放,即在每个竖井内只设置一根排水立管,生活污水与生活废水均由此立管排放。三、设计计算1、室内给水系统的计算(1)给水用水定额及时变化系数按建筑物的性质和市内卫生设备的完善程度,由表2-2中选用dq=220L/人·d,时变化系数2.3hK。人数m取(8×5+4)×4=176人.(2)最高日用水量按公式2-2计算322017638.72/1000ddQmqmd(3)最高日最大时用水量按公式2-3计算338.722.33.71/24ddhQQKmhT(4)设计秒流量按公式3-2计算,0.2gggqNkN本工程为住宅,由表3-5可查得1.02,0.0045k∴0.21.020.00450.2040.0045ggggqNNN(5)室内所需压力按公式2-1计算1234122414.750.8(2.0)17.55175.51.31.328.4336.960.02020yHHHHHHmHOkPaHhkPaHMPakPa水表性能系数按公式3-11及查附录.分户水表选用L×S-25C湿式水表,其公称流量3.53/mh,最大流量73/mh,安装在管段4-5上3450.5/1.8/qLsmh分户水表的水头损失22222max1.86.617100100ggdbqqhkPaqK总水表选用L×S-50C湿式水表,其公称流量153/mh,最大流量303/mh,安装在管段11-12上311122.94/10.58/qLsmh总水表水头损失222'22max10.5812.4430100100ggdbqqhkPaqK175.536.9619.0520251.51HkPa显然,H<270kPa.可知采用直接由外网供水的方案合理。详细计算数据见表1。(6)一楼车库给水系统计算水表选用:L×S-15C详细计算数据见表2。2、室内排水系统的计算(1)各层排水横支管水力计算按公式(6-1)有max0.122.0upqNq详细计算数据见表3(2)排水立管水力计算1:0.122.01.0:0.122.01.5:0.122.01.5upupupqNqNqN立管立管2立管3详细计算数据见表4。表11-6层左侧室内给水管网水力计算表管段编号卫生器具名称当量总数gN设计秒流量(/)gqLs管径DN流速(/)vms单阻()ikPa管段长度()Lm沿程水头损失()yhiLkPa管段沿程水头损失累计()yhkPanN数量当量自至浴盆大便器洗脸盆厨洗盆1234567891011121301-10.5--0.50.10150.500.2751.500.410.411211.510.5-2.00.30200.790.4222.801.181.592311.510.511.0-3.00.37200.920.61912.607.809.393411.520.521.0-4.50.45250.690.2340.400.099.484511.520.521.011.05.50.50250.760.2795.751.6011.085621.540.541.021.011.00.73251.110.5482.951.6212.76731.560.561.031.016.50.90320.880.2822.950.8313.537841.580.581.041.022.01.05321.030.3762.951.1114.648951.5100.5101.051.027.51.19321.160.4762.951.4016.0491061.5120.5121.061.033.01.32401.050.7924.303.4119.451011121.5240.5241.0121.066.01.95500.920.43911.705.1424.591112241.5480.5481.0241.01322.94501.380.9594.03.8428.430'1'-10.50.50.10150.500.2751'3-10.511.01.50.26200.690.336表2一楼车库给水管网水力计算表表3各层排水横支管水力计算表管段编号卫生器具名称当量总数gN设计秒流量(/)gqLs管径DN流速(/)vms单阻()ikPa管段长度()Lm沿程水头损失()yhiLkPa管段沿程水头损失累计()yhkPanN数量当量自至盥洗槽123456789100111.01.00.20150.990.9401.31.221.221221.02.00.30200.780.4228.14.644.642341.04.00.43201.130.8044.78.428.423461.06.00.53250.810.3115.910.2510.254581.08.00.61250.930.3984.71.8712.1256101.010.00.69251.050.4953.61.7813.9067121.012.00.76251.150.5891.40.8214.7278241.024.01.11321.171.164.04.6419.36管段编号卫生器具名称、数量排水当量总数pN设计秒流量/nqLs管径mm坡度浴盆3.0pN洗脸盆0.75pN大便器4.5pN厨洗盆3.0pN盥洗槽0.3pN12345678910立11213.01.00500.0353210.750.25400.0359106622.52.14750.025立20114.51.501000.02078627.02.751000.020表4排水立管水力计算表管段编号卫生器具数量排水当量总数pN设计秒流量(/)uqLs管径()mm浴盆3.0pN洗脸盆0.75pN大便器4.5pN厨洗盆3.0pN盥洗槽0.3pN立管12-4113.751.25754-5227.501.66755-63311.251.80756-74415.01.93757-85518.752.04758-96622.502.1475立管21-214.51.51002-329.02.221003-4313.52.381004-5418.02.521005-6522.52.641006-7627.02.75100立管32-41118.252.19754-522216.52.471005-633324.752.691006-744433.02.881007-855541.253.041008-966649.503.19100车库1-210.30.1050四、参考资料1.《建筑给水排水工程》(王增长主编,中国建筑工业出版社)2.《建筑给水排水设计规范》中华人民共和国建设部立30113.01.00500.03512113.751.46750.0253214.51.501000.02091066649.53.191000.020车库0110.30.10320.0352310.30.10500.0353420.60.026500.035
本文标题:给排水课程设计
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