建筑給排水工程華清給水管網(wǎng)課程設(shè)計(jì)

(建筑給排水工)程華清給水管網(wǎng)課程設(shè)計(jì)目錄一、設(shè)計(jì)任務(wù)1二、設(shè)計(jì)要求1三、設(shè)計(jì)原始資料13.1城市地理資料13.2自然資料23.3工程資料2四、設(shè)計(jì)方案和管道定線54.1設(shè)計(jì)用水量計(jì)算64.2水量調(diào)節(jié)計(jì)算74.3設(shè)計(jì)流量計(jì)算104.4管段設(shè)計(jì)流量分配計(jì)算124.5管段設(shè)計(jì)管徑計(jì)算124.6設(shè)計(jì)工況水力分析144.7確定控制點(diǎn)164.8泵站揚(yáng)程設(shè)計(jì)174.9水塔高度設(shè)計(jì)184.10管網(wǎng)設(shè)計(jì)校核194.10.1消防工況校核194.10.2水塔轉(zhuǎn)輸工況校核214.10.3事故工況校核24五、管材選用26六、其它問題27七、附件28一、設(shè)計(jì)任務(wù)陜西省安康市給水管網(wǎng)工程初步設(shè)計(jì)二、設(shè)計(jì)要求1）、設(shè)計(jì)方案合理，安全可靠，運(yùn)行管理方便。2）、計(jì)算說明書完整，計(jì)算正確，條理清楚，編排合理，語言規(guī)范，書寫工整，裝訂整齊。3）、圖紙應(yīng)能準(zhǔn)確表達(dá)設(shè)計(jì)圖意，圖面布置合理，注文。4）、獨(dú)立思考，遵紀(jì)守律，按時(shí)作息，獨(dú)立完成。三、設(shè)計(jì)原始資料3.1城市地理資料中穿過匯入漢江，將城市分為河南和河北兩個行政區(qū)。10萬人，房屋平均層數(shù)為418萬人，房屋平均層數(shù)為53.2自然資料（1）地質(zhì)：該城市土壤種類為黏質(zhì)土，地下水位線高程為508.43米。（2）降水：年平均降水量為816.5mm。（319.2℃，最熱月平均33.5℃，最冷月平均5.8℃。（4）常年主導(dǎo)風(fēng)向：東北風(fēng)。（5）地震烈度：6級。（6）水文資料：在黃洋河匯流處漢江上游1km處設(shè)有一座水文站，歷史最高洪水位高程510.5598%保證率的枯水位高程504.25507.622.8‰，黃洋河為5.5‰.漢江多年平均流量為854.5m3/s1.8~3.2m/s水質(zhì)滿足地表水Ⅱ類水質(zhì)標(biāo)準(zhǔn)。3.3工程資料（1）工業(yè)企業(yè)：具體位置見城市總規(guī)劃圖，用水量情況見下表：表1工業(yè)企業(yè)用水情況匯總表序用水量名稱用水時(shí)間備注號（m3/d）1鋼鐵廠4200全天均勻使用2化工廠3500全天均勻使用同上3車輛廠26008～24h均勻使用同上4制藥廠16008～16h均勻使用同上5針織廠8008～16h均勻使用同上6啤酒廠2500全天均勻使用同上7食品廠9508～24h均勻使用同上8肉聯(lián)廠6508～16h均勻使用同上9火車站750全天均勻使用同上（2）最高日城市綜合生活用水每小時(shí)用水量占最高日用水量的百分比情況如下表所示：表二城市綜合生活用水情況表時(shí)間小時(shí)用水量占最時(shí)間小時(shí)用水量占時(shí)間小時(shí)用水量占高日用水量/%/%最高日用水量/%0~11.828~95.9216~175.571~21.629~105.4717~185.682~31.6510~115.4018~195.233~42.4511~125.6019~205.144~52.8712~135.1420~214.115~63.9513~144.8121~223.656~74.1114~154.9222~232.837~84.8115~165.2423~242.01（3）用水量標(biāo)準(zhǔn)最高日綜合生活用水量定額為197L/人·d,用水普及率為95%。澆灑道路和大面積綠化用水量取總用水量（生活+工業(yè)）的3.5%，用水時(shí)間為每天8~10時(shí)和15~17時(shí)。+工業(yè)+綠化）的20%。消防用水量按照相關(guān)設(shè)計(jì)規(guī)范計(jì)算。（4）考慮在城市河南區(qū)東郊高地上建設(shè)一座高位調(diào)節(jié)水池。（5）控制點(diǎn)自由水頭為28米。四、設(shè)計(jì)方案和管道定線池，以滿足城市供水要求。城市管網(wǎng)定線是指在地形平面圖上確定管線的走向情況，采用500~800m。4.1設(shè)計(jì)用水量計(jì)算（1）城市最高日綜合生活用水量：=由于該城市的用水普及率為95%，則：=95%=197*28*95%*10000/1000+75053152(m3/d)（2）工業(yè)生產(chǎn)用水量：=16780m3/d)（3）澆灑道路和大面積綠化用水：=（+）3.5%=2447.62(m3/d)（4）未預(yù)見水量和管網(wǎng)漏失水量：=（++）20%=14475.924(m3/d)（5）消防用水量：城市規(guī)劃總?cè)丝跀?shù)為28萬，查附表3知消防用水定額為55(L/s),同時(shí)火災(zāi)次數(shù)為2，則消防用水量為：=255=110(m3/d)（6）最高日設(shè)計(jì)用水量：=+++=86855.54(m3/d)4.2水量調(diào)節(jié)計(jì)算從上表可知，用水高峰為8：:0~9:00，即用水最大時(shí)用水量為5387.29m3，Kh=6.20%/（1/24）=1.4922點(diǎn)到清晨55點(diǎn)到222.59%4.82%。=6.20%=86855.546.20%=5385.04m3/h=1495.85(L/s)管網(wǎng)中不設(shè)置水塔，供水泵站的設(shè)計(jì)水量：1495.85(L/s)管網(wǎng)中設(shè)置水塔或高位水池，供水泵站設(shè)計(jì)水量為：86855.544.82%1000÷3600=1163.36(L/s)水塔或高位水池的設(shè)計(jì)供水量為：86855.54（6.20%-4.82%）1000÷3600=332.95(L/s)5~6輸時(shí)）為：86855.54（4.82%-3.60%）1000÷3600=294.34(L/s)清水池與水塔調(diào)節(jié)容積計(jì)算表時(shí)間給水處理供水量（%）給水泵站供水量（%）設(shè)置水不設(shè)水塔塔清水池調(diào)節(jié)容積計(jì)算（%）設(shè)水塔不設(shè)水塔水塔調(diào)節(jié)容積計(jì)算（1）（2）(3)(4)(2)-(3)∑(2)-(4)∑(3)-(4)∑0~14.162.582.301.581.581.861.860.280.281~24.172.592.181.583.161.993.850.410.692~34.172.592.191.584.741.985.830.401.093~44.162.582.681.586.321.487.31-0.100.994~54.172.592.941.587.901.238.54-0.350.645~64.174.823.60-0.657.250.579.111.221.866~74.164.813.70-0.656.600.469.571.112.977~84.174.824.13-0.655.950.049.610.693.668~94.174.826.20-0.655.30-2.037.58-1.382.289~104.164.815.93-0.654.65-1.775.81-1.121.1610~114.174.825.18-0.654.00-1.014.80-0.360.8011~124.174.815.34-0.643.36-1.173.63-0.530.2712~134.164.824.98-0.662.70-0.822.81-0.160.1113~144.174.824.82-0.652.05-0.652.160.000.1114~154.174.814.89-0.641.41-0.721.44-0.080.0315~164.164.825.79-0.660.75-1.63-0.18-0.97-0.9316~174.174.825.55-0.650.10-1.38-1.57-0.73-1.6717~184.174.824.88-0.65-0.55-0.71-2.28-0.06-1.7318~194.164.814.67-0.65-1.20-0.51-2.790.14-1.5919~204.174.824.65-0.65-1.85-0.48-3.270.17-1.4220~214.174.823.89-0.65-2.500.28-2.990.93-0.4921~224.164.823.67-0.66-3.160.49-2.501.150.6622~234.172.593.171.58-1.581.00-1.50-0.580.0823~244.172.592.671.580.001.500.00-0.080.00100.00100.00100.000.00調(diào)節(jié)容調(diào)節(jié)容積積調(diào)節(jié)容11.0612.88積5.39設(shè)水塔時(shí)清水池容積：11.06%*Qd=9606.22m3不設(shè)水塔時(shí)清水池容積：11.88%Qd=10318.43m3水塔調(diào)節(jié)容積：5.39%Qd=4681.51m34.3設(shè)計(jì)流量計(jì)算表：各管段與配水長度表表4.3管段編號123456789管長（m）797526520716815349367520254配水長度（m）0526260358408349367520254管段編號101112131415161718管長（m）2728158158151059107544010751140配水長度（m）136815815815390107544010751140管段編號192021222324252627管長（m）57844057811404404401059286716配水長度（m）57822057895044044039000管段編號282930管長（m）515447647配水長度（m）000最高時(shí)集中用水量表表4.4火集中用鋼鐵化工車輛制藥針織啤酒食品肉聯(lián)車戶名廠廠廠廠廠廠廠廠站水量48.634.745.155.527.728.916.521.88.6（L/S）124674088節(jié)點(diǎn)號2120221161416154按管段配水長度進(jìn)行沿線流量分配，先計(jì)算比流量[L/(s·ｍ)]：==0.0906=1497.715.25%/6.19%=1262.12(L/s)水塔設(shè)計(jì)供水流量：=1497.71-1262.12=235.59(L/s)各管段沿線流量分配和各節(jié)點(diǎn)流量計(jì)算見下表最高時(shí)管段沿線流量分配與節(jié)點(diǎn)設(shè)計(jì)流量計(jì)算表表4.5管段管段配管段沿或節(jié)水長度線流量集中沿線流供水流節(jié)點(diǎn)流量量量點(diǎn)編流量（m）（L/s）號100.000.000.001162.90-1163.36252647.660.0060.7560.75326023.560.0072.5372.53435832.438.6864.9173.59540836.960.0034.7034.70634931.6227.7734.2962.06736733.250.0050.1050.10852047.110.0077.1077.10925423.010.0071.9871.981013612.320.0035.3335.331181573.8455.5643.0898.641281573.840.0068.6368.631381573.840.00129.33129.331439035.3328.94106.82135.7615107597.4021.8836.1558.031644039.8616.4336.1552.5817107597.400.0097.7697.76181140103.280.00120.27120.271957852.370.0068.6368.632022019.9334.720.0034.722157852.3748.610.0048.612295086.0745.140.0045.142344039.860.000.00332.95-332.952444039.860.001208.510.392539035.330.002600.000.002700.000.002800.000.002900.000.003000.000.004.4管段設(shè)計(jì)流量分配計(jì)算根據(jù)城市給水管網(wǎng)圖和各節(jié)點(diǎn)設(shè)計(jì)流量計(jì)算結(jié)果以及流量連續(xù)性方程進(jìn)行管段設(shè)計(jì)流量初分配。4.5管段設(shè)計(jì)管徑計(jì)算根據(jù)管段設(shè)計(jì)流量初分配結(jié)果進(jìn)行管段設(shè)計(jì)管徑計(jì)[1]采用并行雙管,根據(jù)經(jīng)濟(jì)流速計(jì)算出管徑后,按鄰近原則選取標(biāo)準(zhǔn)管徑,計(jì)算結(jié)果見下表管段設(shè)計(jì)管徑計(jì)算表表4.7管段或節(jié)設(shè)計(jì)流量經(jīng)濟(jì)流速設(shè)計(jì)管徑管段長度mm）點(diǎn)編號(L/s)(m/s)（mm）（m）11163.36112171100*27972402.6117168005263130.081407500520473.440.8342400716560.270.83104008156181.161480500349720015056003678294.0516127005209166.03146050025410601.36187590027211700194410008151220015056008151316.950.61902008151440017148001059152401553600107516171.37146750044017102.740.93814001075182.740.6761001140194.740.71001005782047.870.729530044021105.90.93874005782210.670.6150200114023200.6206300440241000.937640044025331.061649700105926182.95148350028627332.95165170071628115.280.94045005152966.670.83264004473021.530.7198200647管段直徑設(shè)計(jì)公式為：（m）式中D——管段直徑，m；q——管段設(shè)計(jì)流量，m3/s；A——管段過水?dāng)嗝婷娣e，m3；v——設(shè)計(jì)流速，m/s。4.6設(shè)計(jì)工況水力分析為了滿足水力分析前提條件,將管段[1]暫時(shí)刪除,同時(shí)假定節(jié)點(diǎn)（17）為控制點(diǎn),其節(jié)點(diǎn)水頭等于服務(wù)水頭,即H18=542.40m。采用哈代克洛斯法進(jìn)行平差，允許閉合差0.5m，使用海曾-威廉公式計(jì)算水頭損失，Cw=110，計(jì)下表：節(jié)點(diǎn)數(shù)據(jù)計(jì)算設(shè)計(jì)工況水力分析結(jié)果表4.8和表4.9管管管節(jié)點(diǎn)地面自由管段流服務(wù)水頭供水差額段內(nèi)段水頭標(biāo)高水壓(L/s)(m)(m)或流壓(m)(m)(m)節(jié)速降點(diǎn)(m/(m)編s)號1163.31.20.5546.4513.233.216236510.80.5545.9514.031.92406.71534.00-11.9273123030.70.7545.4514.530.93141.66534.50-10.9073221010.50.7544.6513.031.6469.69533.00-11.6873599090.10.1543.9514.029.9524.03534.00-9.89734930000.80.6543.7513.030.76162.86533.00-10.772337070.70.4544.4514.030.47216.14534.00-10.402660000.70.5544.8513.631.28280.31533.60-11.2601306060.70.3546.0513.732.29150.46533.75-12.29147945910.90.3546.4514.032.4595.34534.00-12.435304140410.80.7546.7514.032.7686.67534.00-12.743117240410.70.9544.4513.231.2201.84537.20-7.2236221020210.41.1545.4513.032.412.93537.00-8.4069331610110.81.0543.0513.629.3402.16537.65-5.3919540345910.61.0541.6512.529.1187.35536.50-5.1219556320210.60.4540.5513.227.3118.72537.25-3.3319560485310.40.6542.4514.428.050.09542.40070400010.20.9543.3514.029.31.55538.00-5.338980440410.41.8543.9514.229.73.20538.25-5.7335891285320.71.0544.5514.030.549.41534.00-10.53200430320.81.4544.8514.230.6107.44534.25-10.638515295420.41.8545.1513.331.814.01533.30-11.843225940421.02.0545.0522.071.46/3178020.70.999.65///49420.81.3328.91///55621.00.7200.89///62620.70.5332.95///70520.50.397.34///80620.30.248.73///99530.10.03.59///0194.7確定控制點(diǎn)在水力分析時(shí)，假定節(jié)點(diǎn)（17）為控制點(diǎn),單經(jīng)過水力分析后,比較節(jié)點(diǎn)水頭與服務(wù)水頭，滿足壓力需求。計(jì)算過程見下表：控制點(diǎn)確定與節(jié)點(diǎn)水頭調(diào)整表4.10節(jié)點(diǎn)節(jié)點(diǎn)水服務(wù)水供水差節(jié)點(diǎn)水頭地面標(biāo)自由水標(biāo)號頭(m)頭(m)額(m)調(diào)整(m)高(m)壓(m)1546.46546.46513.252545.93534.00-11.93545.93514.0031.933545.41534.50-10.91545.41514.5030.914544.69533.00-11.69544.69513.0031.695543.90534.00-9.90543.90514.0029.906543.77533.00-10.77543.77513.0030.777544.40534.00-10.40544.40514.0030.408544.86533.60-11.26544.86513.6031.269546.04533.75-12.29546.04513.7532.2910546.44534.00-12.44546.44514.0032.4411546.74534.00-12.74546.74514.0032.7412544.42537.20-7.22544.42513.2031.2213545.41537.00-8.41545.41513.0032.4114543.04537.65-5.39543.04513.6529.3915541.62536.50-5.12541.62512.5029.1216540.58537.25-3.33540.58513.2527.3317542.40542.400.00542.40514.4028.0018543.34538.00-5.34543.34514.0029.3419543.98538.25-5.73543.98514.2529.7320544.53534.00-10.53544.53514.0030.5321544.89534.25-10.64544.89514.2530.6422545.14533.30-11.84545.14513.3031.8423545.08545.08522.00本設(shè)計(jì)要求控制點(diǎn)自由水頭滿足28m。最終節(jié)點(diǎn)水頭確定4.8泵站揚(yáng)程設(shè)計(jì)其所在管段的水力特性確定。設(shè)泵站位于管段i，該管段起點(diǎn)水頭為HFi，終端節(jié)點(diǎn)水頭為HTi，該管段管道沿程水頭損失為hfihmiHTi-HFihfi+hmi式計(jì)算：=（-）+（+）上式可以寫成：=（-）+略高于泵站的設(shè)計(jì)揚(yáng)程。根據(jù)本設(shè)計(jì)數(shù)據(jù)和計(jì)算結(jié)果，根據(jù)式有：=（545.93-513.25）+0.60=33.28（m）管道設(shè)計(jì)流速為1.2~2.0m/s頭損失約為：（m）則水泵站揚(yáng)程應(yīng)為：Hp=33.28+1.63=34.91，取35m；按兩臺泵并聯(lián)工作考慮，單臺水泵流量為：Qp=1163.36÷2=581.68（L/s）4.9水塔高度設(shè)計(jì)HjZjHT8=H8-Z8=545.08-522=23.08（m）4.10管網(wǎng)設(shè)計(jì)校核4.10.1消防工況校核況——即最高時(shí)用水量加上消防流量的工況進(jìn)行消防校核，但節(jié)點(diǎn)水頭只要求滿足火災(zāi)處節(jié)點(diǎn)的滅火服務(wù)水頭，而不必滿足正常用水的服務(wù)水頭。1718防流量為55（L/s量與最高時(shí)相同。10m的自由水壓。各節(jié)點(diǎn)水頭是否滿足消防服務(wù)水頭。下表：消防工況水力分析計(jì)算結(jié)果表4.11管段或管段流管內(nèi)流管段壓節(jié)點(diǎn)水地面標(biāo)自由水節(jié)點(diǎn)編量(L/s)速(m/s)降(m)頭(m)高(m)壓(m)號11218.361.220.53547.65513.2534.402414.540.820.54547.12514.0033.123135.780.690.67546.58514.5032.08464.730.520.69545.91513.0032.91523.110.180.12545.22514.0031.226212.901.081.03545.10513.0032.107221.550.780.48546.13514.0032.138286.650.740.52546.61513.6033.019143.160.730.36547.13513.7533.3810642.511.010.35547.49514.0033.4911733.840.930.81547.84514.0033.8412215.460.761.01544.83513.2031.631312.010.381.01546.19513.0033.1914456.700.911.30544.20513.6530.5515217.490.771.36542.73512.5030.2316148.860.760.67541.62513.2528.371780.230.641.54542.40514.4028.00180.710.090.22542.62514.0028.62191.500.190.44544.16514.2529.912051.120.721.11546.25514.0032.2521109.150.871.47545.87514.2531.622214.410.461.99545.57513.3032.272395.471.353.54546.80522.00/24153.801.222.11///25384.361.001.81///26251.851.281.15///27387.950.700.55///28101.380.520.38///2952.770.420.30///307.630.240.35///消防工況水力分析計(jì)算結(jié)果H1=533.81m39m；547.65-513.25=34.438m因此，滿足消防工況。4.10.2水塔轉(zhuǎn)輸工況校核管網(wǎng)送入水塔內(nèi)貯存，這種情況成為水塔轉(zhuǎn)輸工況。轉(zhuǎn)輸校核工況各節(jié)點(diǎn)流量按最大轉(zhuǎn)輸時(shí)用水量求出，一般假定各節(jié)點(diǎn)流量隨管網(wǎng)總用水量的變化成比例地增減，所以最大轉(zhuǎn)輸工況各節(jié)點(diǎn)流量可以按下式計(jì)算：=3.6%/6.2%*最高時(shí)工況各節(jié)點(diǎn)流量計(jì)算結(jié)果見下表：最大轉(zhuǎn)輸工況各節(jié)點(diǎn)流量計(jì)算表表4.12節(jié)點(diǎn)編號節(jié)點(diǎn)流量（L/s）最大轉(zhuǎn)輸工況各節(jié)點(diǎn)流量(L/s)1-1163.36-1163.36260.7535.27372.5342.11473.5942.73534.7020.15662.0636.04750.1029.09877.1044.77971.9841.801035.3320.521198.6457.281268.6339.8513129.3375.1014135.7678.831558.0333.691652.5830.531797.7656.7618120.2769.841968.6339.852034.7220.162148.6128.232245.1426.2123294.34294.34本設(shè)計(jì)采用水頭校核法進(jìn)行最大轉(zhuǎn)輸流量工況校核，平差過程見附表，水利分析結(jié)果見下表：最大轉(zhuǎn)輸工況水利分析計(jì)算結(jié)果表4.13管段管內(nèi)管段自由或節(jié)管段流地面標(biāo)服務(wù)水節(jié)點(diǎn)水流速壓降水壓點(diǎn)編量(L/s)高(m)頭（m）頭（m）(m/s)(m)（m）號11163.361.220.53513.25548.202516.271.030.81514.00534.00547.6733.673215.641.101.59514.50534.50546.8632.364157.231.253.63513.00533.00545.2732.275108.100.862.08514.00534.00541.6427.646267.801.361.56513.00533.00539.5726.577482.341.712.01514.00534.00541.1327.138511.431.331.50513.60533.60543.1429.549294.191.501.36513.75533.75544.6430.8910554.080.870.27514.00534.00546.0032.0011611.360.780.58514.00534.00546.2732.2712258.520.911.41513.20537.20545.2432.041315.690.501.70513.00537.00545.6132.6114238.850.480.39513.65537.65544.1130.4615107.280.380.37512.50536.50542.6130.1116114.880.590.41513.25537.25542.2328.981724.580.200.17514.40542.40542.4028.00182.500.322.25514.00538.00544.6530.65191.710.220.57514.25538.25544.8330.582028.670.410.38514.00534.00537.5623.562162.360.501.50514.25534.25537.5323.282212.430.401.50513.30533.30537.5324.232347.050.670.95522.00536.9814.9824138.501.100.3325134.470.350.2626339.861.732.0027294.340.620.552825.460.130.03292.770.020.003028.980.924.17547.67-513.25=34.42<35滿足要求4.10.3事故工況校核工況下，必須保證70%以上用水量。降低。節(jié)點(diǎn)流量按下式計(jì)算：事故工況各節(jié)點(diǎn)流量=事故工況供水比例最高時(shí)工況各節(jié)點(diǎn)流量求。[11]表4.14節(jié)點(diǎn)編號節(jié)點(diǎn)流量（L/s）事故工況節(jié)點(diǎn)流量1-1163.36-814.35260.7542.52372.5350.77473.5951.52534.7024.29662.0643.44750.1035.07877.1053.97971.9850.391035.3324.731198.6469.0