給水設(shè)計秒流量計算舉例1

1、住宅給水設(shè)計秒流量計算例1：生活給水設(shè)計計算草圖如圖1所示，立管A和B服務(wù) 于每層六戶的10層普通住宅II型，每戶一廚一衛(wèi)，生活熱 水由家用燃?xì)鉄崴鞴?yīng)，每戶的衛(wèi)生器具及當(dāng)量為：洗滌 盆1只3=1.0）；坐便器1具（N=0.5）；洗臉盆1只3=0.75）； 淋浴器1具（N=0.75）；洗衣機(jī)水嘴1個（N=1.0）。立管C 和D服務(wù)于每層四戶的10層普通住宅III型，每戶兩衛(wèi)一廚， 生活熱水由家用燃?xì)鉄崴鞴?yīng)，每戶的衛(wèi)生器具及當(dāng)量 為：洗滌盆1只3=1.0）；坐便器2具（N=0.5*1 = 1）；洗 臉盆 2 只3=0.75*2=1.5）；浴盆 1 R（N=1.2）,淋浴器 1 具（N=0.

2、75）；洗衣機(jī)水嘴1個（N=1.0）。計算給水設(shè)計秒 流量。計算：立管A和B：查表2.2.1,取生活用水定額：250L/人 天；用水時間24小時；時變化系數(shù)2.8。設(shè)戶均人數(shù)3.5人。查表2.1.1，小計戶當(dāng)量Ng=4.0。最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率為：U = 250*3.5*2.8 =0.03540 0.2*4*24* 3600查表 2.3.1；a c=0.02413立管C和D：查表2.2.1，取生活用水定額：280L/ 人天；用水時間24小時；時變化系數(shù)2.5。設(shè)戶均人數(shù)4 人。查表2.1.1，小計戶當(dāng)量Ng=6.45。最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率為：U =28*4*

3、2.5=0.02510 0.2*6.45*24*3600查表 2.3.1;a c=0.01522管段23的最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率為：_ 4*6*10*2*0.0354 + 6.45*4*10*0.0251 _003180(23)4*6*10*2 + 6.45*4*10.查表 2.3.1;a c=0.02095管段34的最大用水時衛(wèi)生器具給水當(dāng)量平均出流概率為：_ 4*6*10*2*0.0354 + 6.45*4*10*2*0.0251 _0 03010(23)4*6*10*2 + 6.45*4*10*2 .查表 2.3.1;a c=0.01947設(shè)計秒流量計算如下表：浴盆坐便器

4、洗臉洗滌盆淋浴器洗衣機(jī) （1.0）(1.20(0.5盆(1.0(0.75ENgU(%)acU(%)q(L/s)(0.75)入戶管A 00.50.7510.75140.03540.024130.52070.42A1A2034.564.56240.03540.024130.22701.09A2A306912912480.03540.024130.16731.61A3A40913.51813.518720.03540.024130.14082.03A4A501218241824960.03540.024130.12502.40A5A601522.53022.5301200.03540.024130.

5、11422.74A6A7018273627361440.03540.024130.10623.06A7A802131.54231.5421680.03540.024130.10003.36A8A9024364836481920.03540.024130.09503.65A9A1002740.55440.5542160.03540.024130.09093.93A101030456045602400.03540.024130.08734.191206090120901204800.03540.024130.06836.56入戶管C1.211.510.7516.450.02510.015220.4

6、0750.53C1C24.84643425.80.02510.015220.21131.09C2C39.681286851.60.02510.015220.15371.59C3C414.412181291277.40.02510.015220.12811.98C4C519.21624161216103.20.02510.015220.11292.33C5C62420302015201290.02510.015220.10252.64C6C728.82436241824154.80.02510.015220.09482.94C7C833.62842282128180.60.02510.01522

7、0.08883.21C8C938.43248322432206.40.02510.015220.08403.47C9C10 43.23654362736232.20.02510.015220.08003.72C1024840604030402580.02510.015220.07663.9523481001501601201607380.03180.020950.05648.3334961402102001502009960.03010.019470.04999.93例2：有一 26層高級賓館，6層至26層為客房，給水采用 分區(qū)供水，-1層至5層為低區(qū)，6層至15層為中區(qū)，16層 至26層為高

8、區(qū)，高區(qū)和中區(qū)通過屋頂水箱分別供水，衛(wèi)生 間平面和計算簡圖如圖，計算中區(qū)給水設(shè)計秒流量。圖2：計算簡圖計算：查表2.2.2，取用水定額：400L/A天用水時間24JL-IO141=小時；時變化系數(shù)2.0?？偞参粩?shù)為462床，中區(qū)和高區(qū)最 高日最高時生活用水量為:Q = 400*462*2.0 =i5.4m3/h h 24*1000中區(qū)設(shè)計秒流量計算：Qg=0.2* *a =2.5浴盆 (1.0)坐便器 (0.5)洗臉盆 (0.5)ENgq(L/s)浴盆 (1.0)坐便器 (0.5)洗臉盆 (0.5)ENgq(L/s)標(biāo)準(zhǔn)間10.50.520.40 9101899363.001221140.80

9、 1011201010403.162342281.41 1112402020804.4734633121.73 12136030301205.4845844162.00 13148040401606.32561055202.24 141510050502007.07671266242.45 151612060602407.75781477282.65 161722011011044010.49891688322.83例3： 一辦公樓公共衛(wèi)生間布置如下，該辦公樓共有4層，2 至4層不設(shè)無障礙衛(wèi)生間，計算各管段給水設(shè)計秒流量。辦公樓給水設(shè)計秒流量計算計算如Qg= 0.2*a=1.5坐便器蹲便器拖布

10、池小便斗洗臉盆V Nrr計算設(shè)計(0.5)(6.0)(1.0)(0.5)(0.5)LNgq(L/s)q(L/s)1200000.50.50.210.1230000110.300.23400.50011.51.571.4450100121.621.625601.50012.51.671.67670310151.871.877804.52017.52.022.029100010010.300.2101100.51001.51.571.411120110021.621.6212601.51002.51.671.6717180000.500.50.210.118190.5000.5010.300.22

11、01900000.50.50.210.119210.5000.50.51.50.370.3222300000.50.50.210.123210000110.300.221240.5000.51.52.50.470.4724250.50011.530.520.5225260.5001.51.53.50.560.5626270.50021.540.600.627280.5002.51.54.50.640.64AB04.522210.52.172.17B C09444212.572.57CE013.566631.52.882.88CD018888423.143.14DE0.522.51010.510

12、.5543.403.4例4：某市體育館運(yùn)動員休息室衛(wèi)生間平面布置如圖，計算 給水設(shè)計秒流量。計算：qg= q0 N 0b查表2.3.7,同時給水百分?jǐn)?shù)為：洗滌池(qo=O.3,b=15%),洗手盆(qo=O.1,b=7O% ),洗臉盆(qo=O.1,b=8O %),淋浴器(qo=O.1,b=1OO%),大便器自閉式?jīng)_洗閥(qO=1.2,b=2%),1 2： qg=1*O.1*O.7=O.O7,取 qg=O.1L/s23： qg=O.1 L/s34： qg=1*O.1*O.7+1*O.1*1=O.17 L/s,45： qg=1*O.1*O.7+2*O.1*1=O.27 L/s,56： qg=1*

13、O.1*O.7+3*O.1*1=O.37 L/s,67： qg=2*0.1*0.7+3*0.1*1=0.44 L/s,78： qg1=1*0.1*0.8+2*0.1*0.7+3*0.1*1=0.52 L/s, qg2=1.2*2*0.02=0.048,取 qg2=1.2L/s qg=0.52+1.2=1.72L/s89： qg1=1*0.1*0.8+4*0.1*0.7+3*0.1*1=0.62 L/s, qg2=1.2*5*0.02=0.12,取 qg2=1.2L/s qg=0.62+1.2=1.82L/s水力計算:心14甘 世 七 F 9. 8 7 r-cJL沿程損失計算:浴盆 (1.00)

14、坐便器(0.5)洗臉盆 (0.5)ENgqD(mm)i(m/m)V(m/s)L(m)h(m)1a1b000.50.50.10150.0340.573.200.141b1c00.50.510.20200.0300.640.700.031c110.50.520.40200.1091.270.600.091221140.80320.0401.003.600.192342281.41400.0391.133.600.1834633121.73400.0561.383.600.2645844162.00500.0251.023.600.12561055202.24500.0301.143.600.146

15、71266242.45650.0100.743.600.05781477282.65650.0120.803.600.05891688322.83650.0130.853.600.069101899363.00650.0150.903.600.071011201010403.16650.0160.9512.000.251112402020804.47800.0110.894.500.1312136030301205.48800.0161.099.000.1913148040401606.321000.0070.819.200.01141510050502007.071000.0090.901.000.08151612060602407.751000.0100.997.000.14161722011011044010.491000.0181.3410.700.25171822011011044010.491000.0181.3449.301.163.60局部損失計算：h=0.3*3.6=1.08mjEh=1.08+3.60=4.68m最不利點(洗臉盆)流出水頭為5m屋頂水箱底標(biāo)高為104.30m1節(jié)點標(biāo)高為23.50m，10節(jié)點標(biāo)