给水管网课程设计计算书

目录一、工程概况二、用水量计算算三、管网水力计计算1.比流量计算算2.沿线流量计计算3.节点流量量4.管径的确确定5.流量分配配:四、管网平差校校核五、水泵的选选择六、图纸七、参考文献一、工程概况⒈条件图：街街区平面图一一张（带等高高线）；⒉河北为新城城区，居住区区街坊人口为为20万人，用水水量定额220L/（cap.d），用水普普及率95％，时变化化系数为1.5；河南为老老城区，居住住区街坊人口口12万人，用水水量定额200L/（cap.d），用水普普及率90％，时变化化系数为1.6。3.用水大户集集中流量见下下表：新城区单位名称项目机械厂化工厂棉纺厂肉联厂医院1北车站印染厂学校1集中流量（m3/d）1800600035004600150080025001500老城区加工厂炼钢厂染料厂钢缆厂医院2南车站塑料厂学校2集中流量（m3/d）2500420022001800120060036001200根据上述资料设设计老城区的的给水管网。二、用水量计算算1、给水系统的的设计用水量量一般是指设设计年限内最最高日用水量量，包括：（1）综合生生活用水（包包括居民生活活用水和公共共建筑用水）；；（2）工业企企业生产用水水和工作人员员生活用水；；（3）消防用用水；（4）浇洒道道路和绿地用用水；（5）未预见见用水量及管管网漏失水量量。2、计算公式::Qd——最高日日设计用水量量Q1——居住区区综合生活用用水量Q2——工业企企业生活用水水量Q3——生产用用水量Q4——浇洒道道路和绿化用用水量其中：最高日综综合生活用水水量Q1＝qNf；浇洒道路路用水量Q3：用水量按按每平方米路路面每次1.5L计算；每天天浇洒3次；绿化用用水量Q4：绿化用水水量按2L/dd.m2计算；城市市的未预见水水量和管网漏漏失水量按最最高日用水量量的15％～25%计算。河南为老城区，居居住区街坊人人口12万人，用水水量定额200L/（cap.d），用水普普及率90％，时变化化系数为1.6。用水大户集中流流量见下表：：老城区加工厂炼钢厂染料厂钢缆厂医院2南车站塑料厂学校2集中流量（m3/d）2500420022001800120060036001200老城区规划总面面积约为470公顷。其中中绿化面积71公顷，道路路面积80公顷。Q1=200××1200000×90％=216000000（L/d）=216000（m3/d）Q2=25000+42000+22000+18000+12000+600++3600++1200==173000（m3/d）Q3=8000000×1..5×3=336000000（L/d）=36000（m3/d）Q4=7100000×2==14200000（L/d）=14200（m3/d）最高日设计流量量Qd：Qd＝1.2×（Q1+Q2+Q3+Q4）＝1.2××（216000+173000+36000+14220）=527004（m3/d）Qd——最高日日设计用水量量Q1——居住区区综合生活用用水量Q2——工业企企业集中用水水量Q3——用浇洒洒道路水量Q4——绿化用用水量最高日最高时设设计流量Qh＝(10000×1.6××527044)÷（24×36600）=976（L/s）消防用水量：根据《建筑设计计防火规范》该该城市消防用用水量定额为为45L/s，同时火灾灾次数为2次。城市消防用水量量为：三、管网水力计计算比流量计算qs＝(Qhh—∑q)/∑L=(9776-2000.23)//151122=0.055133Qh——为最高高日最大时用用水量L/s∑q——为大用用户集中流量量L/s∑L——管网总总的有效长度度m沿线流量计算qi-j＝qsＬi-jＬi-j—有效效长度；mqs—比流量量沿线流量计算表表管段编号实际长度（m）有效长度（m）沿线流量（L//s）1-249024512.581-377138619.811-572072036.962-689444722.943-464032016.434-51009100951.795-664564533.125-81096109656.264-753526813.767-861361331.4788-947847824.5488-1193393347.899-1295047524.387-1088944522.846-9110755428.4410-1368934517.7210-1158458429.9811-1245745723.4611-1470470436.1412-1594547324.2813-16773762031.8316-1753553527.4613-1461761731.6714-1762762732.1817-1874148224.7414-1576476439.2315-1854027013.86合计1968315112775.77（三）节点流流量qi＝α∑q１１折折算系数取αα＝０.５节点流量表节点节点流量（L//s）节点节点流量（L//s）134.671064.21217.761182.62366.731236.06440.991382.28589.071469.61642.251538.69759.501629..65893.9971749..13959.511819..30（四）、管径的的确定管径与设计流量量的关系：q＝Ａv＝πＤＤ2v／４Ｄ＝（4q/ππv）公式中DD—管段管径，m；q—管段计算流流量，m３/s；Ａ—管段过水水断面面积，m２v—设计流速，m/s；设计中按经济流流速来确定管管径进行平差差，确定实际际管径。平均经济流速与与管径的确定定管径／mm平均经济流速／／（m/s）Ｄ＝100～4400D≥4000.6～０.990.9～1.44（五）、流量分分配:流量分配如下：：1.．最大时流流量初步分配配最大时设计流量量976L//s，流量初步步分配如下表表：最大时流量量分配环编号管长管径流量初步分配影响0.0110411-3771600311.11213-4244500244.38214-5100930050.1231-5720600-320.1112421-5720600-320.11115-664525030.3446-2894600-292.355211-2490600-310.11121434-7535400153.27217-8623300-48.1458-51096500-250.82244-5100930050.121445-81096500250.8238-9478250-30.2169-61107600-280.444216-5645250-30.342457-10889400141.912110-1158420020.31711-8933400-138.92268-761330048.143468-11933400138.92511-12457250-30.18812-9950500-190.722219-847825030.2144710-1368930057.392113-14617300-50.21914-11705350-106.799810-11584200-20.315481179714-15764250-30.741015-12945400-124.4882111-1245725030.1864913-1673720025.322116-17535100-4.332117-14627200-17.711014-13617300-50.21741014-1762720017.71917-18741250-35.752118-15540300-55.052114-1576425030.748管网平差结果（一一）：平差表(一)===================================================================================迭代次数=18===================================================================================环号=1闭合差=-.0002-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)((米)-----------------------------------------------------------------------------------1-37711600.99279..362.0091.611..00583-4244450011.08212..633.114.777..00364-5100093000.23-166.13..36-.337.022771-5720060011.26-355..132.779-2.011..0057sqtotaal=..038dqq=-..02===================================================================================环号=2闭合差=-.0005-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)((米)-----------------------------------------------------------------------------------1-5772060001.2663555.1322.792..01.005575-6645250..5024.3391.8551.19.004886-28946001..02--289.0082.233--1.99.000691-24906001..09--306.8842.499--1.22.00040sqtotaal=..065dqq=-..04===================================================================================环号=3闭合差=-.0004-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)((米)-----------------------------------------------------------------------------------4-7533540001.491877.776..703.558.019117-862233000.15-100.77..18-.111.010448-51009650001.155-2225.5433.51-3..84.017704-5100093000.23166.13..36.337.02277sqtotaal=..069dqq=-..03===================================================================================环号=4闭合差=-.0007-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)((米)-----------------------------------------------------------------------------------5-81096650011.15225..543.5513.844..01708-94788250.35-17..16.998-.477..02739-611077600.96-271..221.998-2.199..00816-56455250.50-24..391.885-1.199..0488sqtotaal=..101dqq=-..03===================================================================================环号=5闭合差=-.0002-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)((米)-----------------------------------------------------------------------------------7-10889940011.11139..044.3373.888..027910-115844200.041..40.004.022..015211-8933340011.10-137..964.330-4.022..02918-76133300.1510..77.118.111..0102sqtotaal=..082dqq=-..01===================================================================================环号=6闭合差=-.0005-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)((米)-----------------------------------------------------------------------------------8-11993340001.1001337.9644.304..02.0299111-12457250..79-38.7734.300--1.96.0050712-99500500.99-194..552.666-2.533..01309-8478250..3517.116.988.47.00273sqtotaal=..120dqq=-..02===================================================================================环号=7闭合差=--.002-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------10-1368933001.00473.4225.6433.89.0553013-146173300.449--34.6771.42--.88.0225314-117053350.999--95.4774.24-22.99.0331311-105842200.004-1.400.04--.02.01152sqtotaal=..125dqq=-..01===================================================================================环号=8闭合差=--.004-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------11-147055350.9995..474.2242.999..031314-15764250..57-28.1152.400--1.83.0065015-129455400.95-119..773.331-3.133..026112-11457250..7938.7734.3001.96.00507sqtotaal=..173dqq=-..01===================================================================================环号=9闭合差=--.001-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------13-167372200.88225.8116.1944.56.1776716-175351100.449-3.8445.90-33.16.8222217-1462272000.62-199.343..64-2.229.1181114-13617300..4934.6671.422.88.00253sqtotaal=1..142dqq=..00===================================================================================环号=10闭合差=--.002-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------14-17627200..6219.3343.6442.29.1118117-187412250.669--33.6333.31-22.46.0773018-155403300.775--52.9333.08-11.66.0331415-147642250.55728.1552.4011.83.06650sqtotaal=..288dqq=..00===================================================================================附：附平差图((一)２．最大时加消消防流量初步步分配在控制制点17跟控制点18点上分别加加上45L/S的流量。设设计流量加上上消防用水量量90L/s。进行流量量的初步分配配，如下表：：最大时加消防防流量初步分分配表环编号管长管径流量初步分配影响0.0110411-3771600311.11213-4244500244.38214-5100930050.1231-5720600-365.1112421-5720600365.11115-664525030.3446-2894600-337.355211-2490600-355.11121434-7535400153.27217-8623300-48.1458-51096500-295.82244-51009300-50.121445-81096500295.8238-9478250-30.2169-61107600-325.444216-5645250-30.342457-10889400141.912110-1158420020.31711-8933400-183.92268-761330048.143468-11933400183.92511-12457250-30.18812-9950500-135.722219-847825030.2144710-1368930057.392113-14617300-50.21914-11705350-151.799810-11584200-20.315481179714-15764250-30.741015-12945400-169.4882111-1245725030.1864913-1673720025.322116-17535100-4.332117-14627200-62.711014-1361730050.21741014-1762720062.71917-18741250-35.752118-15540300-100.0552114-1576425030.748管网平差结果（二二）：平差表表（二）===================================================================================迭代次次数=18===================================================================================环号=1闭合差=--.003-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------1-377166001.0042295.2112.3111.78.000603-4244450011.16228..483.559.888..00384-510099300.18-13..07.225-.255..01941-5722060001.37-3888.723..35-2.441.00622sqtotaal=..035dqq=-..04===================================================================================环号=2闭合差=--.009-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------1-5722060001.373888.723..352.441.006225-664452500.55277.012..221.443.053116-2889460001.177-3229.6422.84-2..54.007771-2499060001.23-3477.402..67-1.331.00388sqtotaal=..071dqq=-..06===================================================================================环号=3闭合差=--.005-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------4-7533540001.602000.567..644.009.020447-866233000.099--6.58.08-..05.007728-51099650001.32-2599.573..92-4.330.016664-5100093000.18133.07..25.225.01944sqtotaal=..064dqq=-..04===================================================================================环号=4闭合差=--.010-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------5-81099650001.322599.573..924.330.016668-9478250..031.337.011.01.000439-61107760011.11-314..402.660-2.888..00926-56455250.55-27..012.222-1.433..0531sqtotaal=..083dqq=-..06===================================================================================环号=5闭合差=--.001-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------7-10889940011.17147..644.8894.344..029410-115842200.003.988.02.01.0111811-893344001.225-1157.6554.72-44.40.022798-7613300..096.558.088.05.00071sqtotaal=..076dqq=-..01===================================================================================环号=6闭合差=--.002-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------8-119334001..25157.6654.7224.40.0027911-1244572550.944-446.1655.94-2..72.0588912-99505500.880-1156.2661.77-11.68.011089-844782550.033--1.37.01-..01.00443sqtotaal=..102dqq=-..01===================================================================================环号=7闭合差=--.001-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)----------------------------------------------------------------------------------177882.4577.014..83.0588613-14617300..45-32.0041.233-.76.0023814-11700535001.27-1222.175..75-4.006.0332210-1155842000.033-.98.02-..01.01118sqtotaal=..127dqq=..00===================================================================================环号=8闭合差=--.002-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)----------------------------------------------------------------------------------2771222.1755.754..06.0333214-157644250.48-23..671.775-1.344..056515-129454001..38--174.0045.755--5.44.0031211-124577250.9446..165.9942.722..0589sqtotaal=..180dqq=..00===================================================================================环号=9闭合差=--.001-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------13-16733720001.03322.219..336.888.2135516-1755351000.3332.5622.851..52.5955717-146272001..41-44.11914.611--9.16.2207314-136173300.44532.0441.23.76.02238sqtotaal=1..040dqq=..00===================================================================================环号=10闭合差=--.001-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------14-176272001..4144.11914.6119.16.2207317-18741250..97-47.3386.244--4.62.009761858-1111.6810..88-5.888.0526614-15764250..4823.6671.7551.34.00565sqtotaal=..414dqq=..00===================================================================================附：附平差图((二)３．事故时流量量初步分配事故时1-3管管段断开，70％的设计流流量（即683.22L/s）送向管网网。事故初步流量分分配环编号管长管径流量初步分配影响0.019421-5720600358.33215-6645250-40.2136-2894600-288.177211-2490600-300.60021434-7535400-15.10217-8623300-60.5448-51096500-275.89934-5100930060.3021445-81096500275.8928-9478250-36.3159-61107600-140.411216-564525040.211457-108894003.792110-11584200-30.28611-8933400-185.88858-761330060.542468-11933400185.88411-12457250-37.81712-9950500-140.411219-847825036.3134710-13689300-10.882113-14617300-60.68814-11705350-135.588710-1158420030.284481158614-15764250-30.21915-12945400-77.362111-1245725037.8154913-16737200-7.82116-17535100-28.562117-14627200-56.38914-1361730060.68641014-1762720056.38817-18741250-6.562118-15540300-20.072114-1576425030.217管网平差结果（三三）：平差表表（三）===================================================================================迭代次次数=18===================================================================================环号=1闭合差=--.001-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------1-5720060011.33376..313.1142.266..00605-6645250..3215.770.844.54.003446-38944600.96-270..191.996-1.755..00653-14906001..00--282.6622.133--1.05.00037sqtotaal=..051dqq=-..01===================================================================================环号=2闭合差=--.004-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------4-755354000.122114.83.08..04.002287-862333001.110--77.7336.28-33.91.055038-51096650011.06-208..033.001-3.300..01595-41009930011.2890..237.1107.177..0794sqtotaal=..148dqq=-..01===================================================================================环号=3闭合差=.000-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------5-81096650011.06208..033.0013.300..01598-94788250.72-35..533.667-1.755..04939-611077600.63-178..34.991-1.011..00576-56455250.32-15..70.884-.544..0344sqtotaal=..105dqq=..00===================================================================================环号=4闭合差=--.006-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------7-1088894000.41500.91..69.662.0121110-1155842000.644-119.9833.87-2..26.1133011-899334000.800-1000.0522.37-2..21.022218-76133001..1077.7736.2883.85.00495sqtotaal=..197dqq=-..02===================================================================================环号=5闭合差=--.003-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------8-119334400.8801100.0552.3722.21.0222111-1244572550.755-336.9433.94-1..80.0488712-999505000.911-1779.1222.28-2..17.012219-84788250.7235..533.6671.755..0493sqtotaal=..132dqq=-..01===================================================================================环号=6闭合差=--.008-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)-----------------------------------------------------------------------------------10-1368893000.37255.94..84.558.0224413-1461173000.68-488.352..61-1.661.0333314-1170053500.62-599.181..76-1.224.0209911-1058842000.64199.983..872.226.11300sqtotaal=..190dqq=-..02===================================================================================环号=7闭合差=.001-----------------------------------------------------------------------------------管段号管长管径流速流量1000II水头损失ssq(米)(毫米)(米/秒)(升/秒)(米)----------------------------------------------------------------------------------4111335.5877.095..00.0366814-1577642550.855-441.9544.98-3..80.0900715-1299454000.933-1116.9433.16-2..99.0255612-1144572550.755336.9433.941..80.04887sqtotaal=..202dqq=..00===================================================================================环号=8闭合差=--.001-----------------------------------------------------------------------------------管段号管长