《浙江省S縣給水工程初步設計》16000字（論文）

浙江省S縣給水工程初步設計摘要本設計是關于金華市S縣城區(qū)給水工程初步設計的計算和說明。設計的主要內(nèi)容包括計算城市用水量；計算給水廠的設計規(guī)模、取水構筑物設計、給水管網(wǎng)的設計和工程投資估算等。根據(jù)S縣的地形圖，將水源設置在S江，取水口設置在上游順直河段，這樣河床穩(wěn)定，不易發(fā)生施工事故。查閱資料得出S江的最高水位是55m，頻率是2%，最低水位50m，常年水位是52m。設計采用河床式取水構筑物，使用水泵直接吸水，取水頭部采用喇叭管垂直向下式。管網(wǎng)水量采用最高時水量：Qh為2055.28L/s本設計采用加壓式的給水管道系統(tǒng)，輸水管道系統(tǒng)采用管道的形式。本設計考慮技術與經(jīng)濟因素，因此在管網(wǎng)布置方面，采用環(huán)狀管網(wǎng)。本設計的給水廠設計規(guī)模是136591m3/d。工程設計流程如下：取水水源→取水構筑物（一級泵站）→絮凝池（網(wǎng)格）→沉淀池（斜管）→濾池（V型）→清水池→二級泵站→管網(wǎng)系統(tǒng)。本設計的混凝劑采用硫酸鋁，消毒劑采用液氯。本設計的絮凝池采用網(wǎng)格絮凝池，絮凝效果好、水頭損失小、絮凝的時間相較來說比較短。沉淀池采用斜管沉淀池。它的優(yōu)點是沉淀時間較短、性能較好、占地面積小。濾池采用V型濾池。工程估算總投資3500萬元，工程建設期為1年。關鍵詞：泵站；沉淀池；濾池；清水池；水頭損失目錄TOC\o"1-2"\h\u4763引言 92346第一章設計要求及資料 10306401.1設計任務及要求 1042451.2設計資料及依據(jù) 1010339第二章總體設計 11306402.1給水處理工藝方案的比較選擇 1119703第三章給水管網(wǎng)設計 14306403.1給水管網(wǎng)計算 1442453.2給水管網(wǎng)的設計 1549693.3設計用水量 1562243.4管網(wǎng)平差 15162933.5管網(wǎng)校核 2219704第四章取水構筑物設計 3743814.1初步設計 39276764.2取水頭部設計 41187484.3吸水管和壓水管設計 4377304.4泵房設計 4727326第五章凈水構筑物設計 3943815.1加藥間設計 39276765.2絮凝池設計 41187485.3沉淀池設計 4377305.4濾池設計 47302715.5濾池管渠設計 51218875.6清水池的設計 53319895.7加氯間設計 551181第六章二級泵站 5619066第七章水廠平面高程布置 5775737.1平面布置概述 58175687.2水廠的高程布置 587937.3各構筑物的高程計算 5811990第八章工程投資估算 6012372結論 6112072參考文獻 63引言本設計課題為金華市S縣城區(qū)給水工程初步設計。S縣，隸屬于浙江省金華市，位于浙江省中部。S縣的東西寬為50km左右，南北長為59km左右，城市面積為1577.2km2左右。地形屬于浙中丘陵盆地和浙中南山區(qū)交叉地帶，地勢南高北低，縣境中部隆起，西南高山連綿，東北丘陵起伏，山脈屬仙霞嶺分支。雖然S縣屬于亞熱帶季風氣候，總體來說雨量充沛，但是也時常用水緊張，而且飲用水也遭到了來自工業(yè)區(qū)的不同程度的污染。河流邊的工業(yè)區(qū)產(chǎn)生了大量的污染物，對水質(zhì)造成較大污染。所以為了緩解由于水質(zhì)型缺水導致的用水緊張情況，也是滿足緩解工業(yè)，農(nóng)業(yè)的用水量，因此需要在S縣要建一座新的給水廠，這座新的給水廠的處理規(guī)模為136591m3/d。凈水工藝采用常規(guī)處理工藝。最終采用的工藝流程如下：取水水源→取水構筑物（一級泵站）→絮凝池（網(wǎng)格）→沉淀池（斜管）→濾池（V型）→清水池→二級泵站→管網(wǎng)系統(tǒng)。同時，給水管網(wǎng)的規(guī)劃和設計也要考慮S縣的經(jīng)濟情況，此外也要考慮到安全性問題。綜合來設計，采用環(huán)狀管網(wǎng)，不僅可以減少水錘，降低發(fā)生危害的可能性，也比較符合經(jīng)濟定位。此給水工程的初步設計，符合目前S縣的現(xiàn)狀，使人們用水更加安全可靠，改善目前的用水狀況。設計要求及資料1.1設計任務及要求1.1.1設計題目金華市S縣給水工程初步設計1.1.2設計進出水水質(zhì)水源水質(zhì)資料：河水水質(zhì)達到《地表水環(huán)境質(zhì)量標準》(GB3838-2002)Ⅱ類水體，濁度15NTU左右，色度10度左右，耗氧量小于2.0mg/L，pH值7.1，總硬度107mg/L（以CaCO3計）左右，無異臭異味。設計出水水質(zhì)：滿足《生活飲用水衛(wèi)生標準》（GB5749-2006）要求。1.2設計資料及依據(jù)1.2.1人口及用水情況全縣戶籍人口36萬，城區(qū)人口30萬人，給水普及率100%。1.2.2自然條件常年主導風向為東北風。年平均降水量1474.49mm。地形屬浙中丘陵盆地和浙中南山區(qū)交叉地帶，工程地質(zhì)良好，適于工程建設?？h境東西寬50km，南北長59km，境域面積1577.2km2。1.2.3設計依據(jù)1.《水質(zhì)工程學》教材上、下冊；2.《給水排水設計手冊》第一、五、十、十一冊；3.《給水排水工程快速設計手冊》2、5冊；4.《水泵及水泵站》姜乃昌主編，中國建筑工業(yè)出版社；5.《給水排水工程專業(yè)畢業(yè)設計指南》張智等編著，中國水利水電出版設；6.《水處理工程設計計算》韓洪軍等編著，中國建筑工業(yè)出版社；7.《給水排水制圖標準》（GB/T50106-2001）；8.《給水工程》嚴煦世，范瑾初等編著，中國建筑工業(yè)出版社；總體設計2.1給水處理工藝方案2.1.1凈水工藝的要求給水處理的目的，是為了除去水中的雜質(zhì)和污染物，例如：病毒和細菌、微生物以及其他一些有毒物質(zhì)等，使處理后的水質(zhì)能被人類引用或者使用于生產(chǎn)。同時，處理后的水質(zhì)必須符合國家的要求，必須處理出高質(zhì)量的水質(zhì)。2.1.2取水工程方案取水工程的的線路是在已經(jīng)選定水源地的前提下，把水取出，然后經(jīng)過給水廠的一系列處理后送到用戶手中。本設計的水源為S江，取水口位于上游，河道順暢平直，河床與河岸也較為穩(wěn)定。經(jīng)查閱得知最高水位10.0m，頻率2%，最低水位4.5m，常水位7.5m。本設計采用采用河床式取水構筑物，使用水泵直接吸水，取水口頭部采用喇叭管，垂直向下。進水管的數(shù)量必須是兩條以上；設計流速要大于等于0.6m/s，當然也不能過度大。虹吸高度要小于等于4m-6m，進水管的沖洗方式可以采用順沖和反沖兩種。2.1.3混凝工藝方案目前我國已經(jīng)具備多種形式的絮凝池，包括折板絮凝池、隔板絮凝池、以及網(wǎng)格絮凝池等。折板絮凝池主要優(yōu)點是容積小，主要缺點是造價高。隔板絮凝池，構造比較簡單，在施工階段以及后期運營管理可能稍微方便一點。但是他的容積過大。而網(wǎng)格絮凝池就結合了折板和隔板的優(yōu)點，缺點只是池底容易積泥。所以綜合來比較，本設計選擇網(wǎng)格絮凝池作為混凝工藝的構筑物。2.1.4沉淀工藝方案目前我國的沉淀池形式也基本齊全。有豎流沉淀池、平流沉淀池、斜板和輻流沉淀池等。平流式沉淀池主要優(yōu)點是施工管理簡單，而且造價較低。它的缺點是排泥難度大，需要的占地面積大，平流沉淀池適用于大中型的水廠。豎流式池的占地面積相較來說小一點，優(yōu)點在于排泥難度低。缺點是因為它是是豎式的，所以水流量會較小一點，沉淀效果不會太好，適用于小水廠。輻流式沉淀池額外多了一個機械持泥裝置，排泥效果也好一些。缺點是投資造價高，維護管理費勁。適用于大中型水廠。斜板式沉淀池，沉淀效果好，占地面積小。缺點是能耗高，排泥較困難。一般用于大中型水廠的情況多一點。綜合考慮，本設計使用斜管沉淀池。2.1.5消毒工藝方案消毒工藝有液氯消毒和氯胺消毒兩種。液氯消毒的主要優(yōu)點是余氯連續(xù)消毒，費用較少，操作上會比較好操作一點，缺點是原水的有機物含量高，原水中含有苯酚會生成有機氯化物。苯酚氣味對人有害，氯氣有毒。氯胺的優(yōu)點是能減少三鹵甲烷的產(chǎn)生；抑制細菌的形成。缺點是消毒速度比液氯慢，還需要額外增加加氯設備，啟動和管理的問題操作難。適合原水有機物多，排水管道長的情況。本設計采用液體氯消毒工藝。2.1.6管網(wǎng)方案管網(wǎng)分為樹狀網(wǎng)和環(huán)狀網(wǎng)。樹狀網(wǎng)絡一般適合小城市，如果管道線路的管道部分受損，在該管道線路段以后所有管道的線路都將被切斷，從而降低供水的穩(wěn)定性。在樹狀網(wǎng)的盡頭，水流變得比較慢，水的質(zhì)量會變劣。環(huán)網(wǎng)管區(qū)如果受損，附近的閥門關閉后還可以重新檢查，其他管道也可以向用戶提供水，從而提高用水的可信度。環(huán)狀網(wǎng)安全性較高。綜合考慮，本設計采用環(huán)狀管網(wǎng)。圖2-1管網(wǎng)布置給水管網(wǎng)設計3.1給水管網(wǎng)計算3.1.1總用水量概括城市總用水量包括：居民綜合生活用水量、工業(yè)生產(chǎn)用水量、澆灑道路用水量和綠化用水量、管網(wǎng)漏損水量、未預見用水量、和消防用水量。給水廠出水水質(zhì)需要滿足《生活飲用水衛(wèi)生標準》（GB5749-2006）要求。3.1.2最高日綜合生活用水量（3-1）其中：q表示居民綜合生活用水定額，N代表居民人數(shù)，f代表自來水普及率。根據(jù)《室外給水設計規(guī)范》（GB50013-2006），金華市S縣城區(qū)的供水標準為220L/人?天；N表示人口數(shù)，為30w人；f表示自來水普及率，查閱S縣自來水普及相關資料取為95%；3.1.3工業(yè)生產(chǎn)用水量S縣主要的工業(yè)區(qū)是百花山工業(yè)區(qū)，走訪工業(yè)區(qū)調(diào)研得出全區(qū)日用水量為20000m3/d左右，所以Q2=20000m3/d（3-2）3.1.4澆灑道路用水量和綠化用水量根據(jù)《室外給水設計規(guī)范》（GB50013-2006）的規(guī)定，澆灑道路和綠化用水可按最高日綜合生活用水量和工業(yè)生產(chǎn)用水量之和的30%～50%，這里取35%。所以=24810（3-3）3.1.5管網(wǎng)漏失水量管網(wǎng)漏失水量應該按照3.1.1～3.1.4幾項之和的10%～12%計算，這里取10%。所以（3-4）3.1.6未預見用水量未預見用水量應根據(jù)難以預測的因素綜合來確定，可以采用3.1.1～3.1.5之和的8%～12%確定，這里取10%。所以（3-5）3.1.7給水廠的設計水量最高日用水量為：（3-6）本設計水量約為136591m3/d。3.1.8消防用水量根據(jù)《建筑設計防火規(guī)范》(GB50016)及《高層民用建筑設計防火規(guī)范》(GB50045)等設計防火規(guī)范，S縣的城市消防用水量為55L/S，次數(shù)為2次。最高日用水量不納入消防用水量，因為火災的發(fā)生是偶然的，所以滅火的消防用水也會比較少。3.1.9最高時用水量的計算根據(jù)《室外給水設計規(guī)范》(GB50013-2006)的規(guī)定，城鎮(zhèn)供水的時變化系數(shù)、日變化系數(shù)應根據(jù)城鎮(zhèn)性質(zhì)和規(guī)模、國民經(jīng)濟和社會發(fā)展、供水系統(tǒng)布局，結合現(xiàn)狀供水曲線和日用水變化分析確定。在缺乏實際用水資料情況下，最高日城市綜合用水的時變化系數(shù)宜采用1.2～1.6；日變化系數(shù)宜采用1.1～1.5。這里采取1.3。（3-7）3.2給水管網(wǎng)的設計3.2.1給水工程的確定給水管道的輸水方式有重力式輸水，加壓式輸水或是結合并用。這里采用加壓式輸水方式，采用管道。3.3設計用水量3.3.1設計用水量的計算管網(wǎng)設計用水量采用最高日最高時用水量：Qh=2055.28L/s （3-8）3.4管網(wǎng)平差3.4.1平差依據(jù)和結果表3-1平差計算依據(jù)和結果平差計算依據(jù)和結果平差類型反算水源壓力2、計算公式海曾威廉公式V=0.44*C*(Re/C)^0.075*(g*D*I)^0.5Re=V*D/ν計算溫度：13℃ν=0.0000013、局部損失系數(shù)：1.204、水源點水泵參數(shù):無參數(shù)5、管網(wǎng)平差結果特征參數(shù)水源點編號節(jié)點流量(L/s)節(jié)點壓力(m)JD1-2055.280109.726最大管徑(mm):1600.00最小管徑(mm):200.00最大流速(m/s):1.150最小流速(m/s):0.035水壓最低點JD26壓力(m):68.76自由水頭最低點JD26自由水頭(m):28.003.4.2平差計算節(jié)點參數(shù)表3-2平差計算節(jié)點參數(shù)平差計算節(jié)點參數(shù)節(jié)點編號流量(L/s)地面標高(m)節(jié)點水壓(m)自由水頭(m)JD1-2055.28073.510109.72676.216JD22.93573.930109.64975.719JD311.36771.590109.54177.951JD46.81774.830109.30074.470JD5243.04175.230108.65973.429JD614.92876.490107.48170.991JD716.79778.210106.07067.860JD825.14474.270104.73470.464JD916.71266.160102.67766.517JD1016.78866.860100.76563.905JD1125.22067.29098.99261.702JD1216.76369.54096.89057.350JD1316.45867.63094.99957.369JD1416.45869.68093.36553.685JD1525.06870.32091.85751.537JD1616.64471.85089.70647.856JD1716.71270.21087.89247.682JD1819.28869.53086.36546.835JD198.44968.22085.57447.354JD2014.32269.42083.95944.539JD2116.50970.65080.73340.083JD2216.54371.58078.61037.030JD2316.80572.36075.80033.440JD2413.98071.98072.36630.386JD2513.95571.25069.56228.312JD2616.80570.76068.76028.000JD2716.71269.68069.22529.545JD2816.69568.20073.45735.257JD2922.17669.72077.42637.706JD3016.47570.86076.14535.285JD3116.83071.69076.28834.598JD3216.74672.68079.57336.893JD3317.11371.59082.94541.355JD3416.85672.87078.72335.853JD3514.07371.16078.30837.148JD3610.14672.67078.63435.964JD3710.13470.63079.92839.298JD3812.24271.48079.79438.314JD3916.76370.26080.20139.941JD4012.42269.11081.64742.537JD4111.69370.83083.14442.314JD4212.87571.46083.67742.217JD4320.93572.65086.26443.614JD4416.83974.36086.52942.169JD4516.84775.53088.30542.775JD4610.99576.28092.74146.461JD4710.91974.16093.59349.433JD4816.58571.85097.46655.616JD4916.65370.260100.25759.997JD5025.06071.470102.39960.929JD5116.53469.880103.99164.111JD5216.71267.350105.65868.308JD5325.31364.810106.72371.913JD5416.78862.190108.12775.937JD5516.83976.750104.96068.210JD5616.43878.530103.29864.768JD5733.15070.290101.80861.518JD5816.84771.630100.70859.078JD5916.78073.560100.98757.427JD6016.42476.25099.91453.664JD6112.34177.68098.21850.538JD6221.02778.24097.37949.139JD6324.97577.19095.24348.053JD6416.48475.38095.53550.155JD6516.77176.61096.62650.016JD6616.89074.35093.20548.855JD6716.77177.53091.37843.848JD6810.36275.24089.77044.530JD6925.82273.86089.40645.546JD7015.45271.54088.01546.475JD7116.78871.20088.03246.832JD7216.72972.73088.90846.178JD7316.71273.68087.30643.626JD7411.68275.38085.53340.153JD7527.15174.16084.91340.753JD7615.45276.29082.62836.338JD7716.85674.38082.52138.141JD7816.79772.94084.04841.108JD7916.76372.72082.42739.707JD8014.00671.35079.09237.742JD8116.80575.83084.03238.202JD8216.81476.98084.43837.458JD8321.39674.36088.58444.224JD8416.73771.58086.23944.659JD858.74070.20083.05442.854JD8613.09172.85089.32546.475JD8730.47770.26090.88050.620JD8816.83968.63088.32349.693JD8916.81470.25084.94644.696JD9010.11772.15080.48638.336JD9113.61372.69092.11549.425JD9216.83973.48093.32649.846JD9326.63674.62094.66850.048JD9416.87371.86092.30350.443JD9516.82270.23089.26249.032JD9611.65071.09085.42044.330JD978.73172.80094.85252.052JD9815.79073.74095.88152.141JD9932.01875.29097.14251.852JD10016.62773.60093.75950.159JD10116.67071.87091.49649.626JD10212.56269.58088.49148.911JD10315.01071.63098.57356.943JD10416.66172.980100.41857.438JD10516.87372.85098.01855.168JD10616.81471.960100.07058.110JD10716.80572.07094.73452.664JD10816.80570.66095.93455.274JD10914.95371.77086.20344.433JD11014.93673.87085.54141.671JD11116.81471.36085.77844.4183.4.3平差計算管段參數(shù)表3-3平差計算管段參數(shù)平差計算管道參數(shù)管道編號管徑(mm)管長(m)流量(L/s)流速(m/s)千米損失(m)管道損失(m)JD1-JD21600102.0002055.2800.9850.7580.077JD2-JD31600143.0002052.3450.9840.7560.108JD3-JD41000217.005739.9350.9041.1070.240JD3-JD541200984.0001301.0431.1501.4371.414JD4-JD51000589.000733.1180.8951.0880.641JD5-JD6800778.000490.0770.9331.5141.178JD6-JD7800987.000475.1490.9041.4301.411JD7-JD8800999.000458.3520.8721.3381.336JD8-JD9700986.000410.9881.0212.0862.056JD8-JD59200988.00022.2210.6543.7923.747JD9-JD10700990.000394.2760.9791.9311.912JD10-JD11700995.000377.4880.9381.7821.773JD11-JD12600991.000302.7310.9562.1212.102JD11-JD65300996.00049.5360.6522.3752.366JD12-JD13600991.000285.9680.9031.9091.891JD13-JD14600955.000269.5100.8511.7101.633JD14-JD15600991.000253.0520.7991.5221.509JD15-JD16500986.000193.2770.8692.1812.151JD15-JD72250987.00034.7080.6592.9872.948JD16-JD17500982.000176.6330.7951.8471.813JD17-JD18500994.000159.9210.7191.5371.527JD18-JD19400296.583110.2160.8272.6660.791JD18-JD78250990.00030.4170.5772.3402.317JD19-JD20400702.417101.7670.7632.3001.616JD20-JD21350991.00087.4450.8503.2543.225JD21-JD22350961.00070.9360.6892.2102.124JD22-JD23300995.00054.3930.7162.8242.810JD23-JD24250992.00037.5880.7133.4623.434JD24-JD25200661.00023.6080.6954.2422.804JD25-JD26200989.0009.6530.2840.8110.802JD26-JD27200998.0007.1520.2100.4660.465JD27-JD28200978.00023.8640.7024.3274.232JD28-JD29250996.00040.5590.7703.9853.969JD29-JD30200953.00012.6870.3731.3451.281JD29-JD80350673.03775.4220.7332.4751.666JD30-JD31200995.0003.7880.1110.1440.143JD31-JD32200995.00020.6180.6073.3023.285JD32-JD33250985.00037.3640.7093.4243.373JD33-JD34200997.00023.5890.6944.2364.223JD33-JD8535041.36178.0660.7582.6380.109JD34-JD35200996.0006.7330.1980.4160.415JD35-JD36200668.0007.3400.2160.4890.326JD36-JD37200531.58617.4860.5152.4341.294JD37-JD38200463.4145.5300.1630.2890.134JD37-JD90250203.23133.1500.6292.7440.558JD38-JD39200984.0006.7120.1980.4140.407JD39-JD40250998.00023.4750.4461.4491.446JD40-JD41250470.70535.8970.6813.1791.497JD41-JD42250527.29519.3220.3671.0110.533JD41-JD96200384.50328.2670.8325.9192.276JD42-JD43250995.00032.1970.6112.6002.587JD43-JD44250994.0009.4070.1790.2670.265JD43-JD102250486.29843.7250.8304.5802.227JD44-JD45250997.00026.2460.4981.7811.776JD45-JD46250995.00043.0930.8184.4584.436JD46-JD47300305.00054.0880.7122.7950.852JD47-JD48300986.00065.0070.8563.9273.872JD48-JD49350975.00081.5920.7932.8632.791JD49-JD50400994.00098.2450.7372.1552.142JD50-JD51900976.000692.2131.0441.6311.591JD50-JD104800993.000568.9071.0831.9951.981JD51-JD52900979.000708.7471.0681.7031.668JD52-JD531000997.000725.4590.8861.0671.064JD53-JD5412001001.0001284.2551.1361.4031.404JD53-JD55800995.000533.4831.0151.7711.763JD55-JD56800996.000516.6440.9831.6691.663JD56-JD57800947.573500.2060.9521.5721.490JD57-JD58200996.00011.4060.3361.1041.100JD57-JD60700986.000393.0180.9761.9201.893JD57-JD106350990.00062.6320.6091.7551.738JD58-JD59200996.0005.4410.1600.2810.280JD60-JD61700956.000376.5940.9351.7741.696JD61-JD62700503.233364.2530.9051.6680.840JD62-JD63600992.000305.1750.9642.1532.135JD62-JD108300991.00038.0510.5011.4581.445JD63-JD64300962.00016.2810.2140.3030.292JD63-JD66600999.000296.4810.9362.0402.038JD64-JD65300987.00032.7650.4311.1061.091JD66-JD67600998.000279.5910.8831.8311.827JD67-JD68600985.000262.8200.8301.6331.608JD68-JD69600240.140252.4580.7971.5160.364JD69-JD70200833.00014.2610.4201.6701.391JD69-JD73500988.000190.5860.8572.1262.100JD69-JD111200992.00021.7890.6413.6573.628JD70-JD71200994.0001.1910.0350.0170.017JD71-JD72250991.00017.9790.3410.8850.877JD73-JD74500988.000173.8740.7821.7941.772JD74-JD75500393.282162.1920.7301.5770.620JD75-JD76200830.00018.6880.5502.7532.285JD75-JD79400999.000106.1910.7972.4892.486JD75-JD81200988.00010.1610.2990.8920.881JD76-JD77200997.0003.2360.0950.1070.107JD77-JD78200996.00013.6200.4011.5331.527JD79-JD80350983.00089.4280.8693.3923.335JD81-JD82200999.0006.6440.1960.4060.406JD82-JD83200989.00023.4580.6904.1924.146JD83-JD84400987.000103.5430.7772.3752.344JD83-JD86500553.867148.3970.6681.3380.741JD84-JD85350992.00086.8060.8433.2103.185JD86-JD87500994.000161.4880.7261.5651.555JD87-JD88350996.00076.9200.7472.5672.557JD87-JD91600615.539293.7990.9282.0061.235JD87-JD109200998.00024.9140.7334.6864.677JD88-JD89300995.00060.0810.7913.3943.377JD89-JD90250993.00043.2670.8214.4914.460JD91-JD92700994.000307.4120.7631.2191.212JD92-JD93700997.000324.2510.8051.3451.341JD93-JD94350999.00073.6120.7152.3672.364JD93-JD97800162.377420.0590.7991.1380.185JD93-JD107250991.0004.4410.0840.0670.066JD94-JD95300996.00056.7390.7473.0533.041JD95-JD96250993.00039.9170.7583.8693.842JD97-JD98800870.000428.7900.8161.1821.029JD98-JD99800997.000444.5800.8461.2641.260JD99-JD100350994.00089.5840.8703.4033.383JD99-JD103800797.778537.2361.0221.7951.432JD99-JD105300997.00028.9450.3810.8790.876JD100-JD101350972.00072.9570.7092.3282.263JD101-JD102300999.00056.2870.7413.0093.006JD103-JD104800977.000552.2461.0511.8881.845JD105-JD106300998.00045.8180.6032.0562.052JD107-JD108250996.00021.2460.4031.2051.200JD109-JD110200770.0009.9610.2930.8600.662JD110-JD111200996.0004.9750.1460.2380.2373.5管網(wǎng)校核3.5.1消防工況校核給水管網(wǎng)的設計流量未計入消防流量，當火災發(fā)生在最高最高時時，消防流量比較大，管網(wǎng)以保證滅火用水為主。為了安全起見，按最高時用水量加上消防流量的工況進行消防校核。1.富陽區(qū)人口小于30萬人，查城鎮(zhèn)、居民區(qū)室外消防用水量表知同一時間火災次數(shù)為2次，一次滅火用水量為55L/s。2.火災流量全部由二級泵站供給。表3-4平差計算依據(jù)和結果平差計算依據(jù)和結果平差類型消防校核2、計算公式海曾威廉公式V=0.44*C*(Re/C)^0.075*(g*D*I)^0.5Re=V*D/ν計算溫度：13℃ν=0.0000013、局部損失系數(shù)：1.204、水源點水泵參數(shù):無參數(shù)5、管網(wǎng)平差結果特征參數(shù)水源點編號節(jié)點流量(L/s)節(jié)點壓力(m)JD1-2165.280109.726最大管徑(mm):1600.00最小管徑(mm):200.00最大流速(m/s):2.114最小流速(m/s):0.024水壓最低點JD24壓力(m):12.41自由水頭最低點JD24自由水頭(m):-29.57表3-5平差計算節(jié)點參數(shù)表平差計算節(jié)點參數(shù)節(jié)點編號流量(L/s)地面標高(m)節(jié)點水壓(m)自由水頭(m)JD1-2165.28063.510109.72676.216JD22.93563.930109.64175.711JD311.36761.590109.52277.932JD46.81764.830109.24674.416JD5243.04165.230108.51073.280JD614.92866.490107.06870.578JD716.79768.210105.32967.119JD825.14464.270103.67069.400JD916.71266.160101.05364.893JD1016.78866.86098.59761.737JD1125.22067.29096.29559.005JD1216.76369.54093.34853.808JD1316.45867.63090.64853.018JD1416.45869.68088.26948.589JD1525.06870.32086.02445.704JD1616.64471.85082.32340.473JD1716.71270.21079.06438.854JD1819.28869.53076.17336.643JD198.44968.22074.13235.912JD2014.32269.42069.70030.280JD2116.50970.65059.69719.047JD2216.54371.58051.75310.173JD2316.80572.36038.030-4.330JD24123.98071.98012.407-29.573JD2513.95571.25013.284-27.966JD2616.80570.76018.497-22.263JD2716.71269.68031.529-8.151JD2816.69568.20054.87516.675JD2922.17669.72067.79528.075JD3016.47570.86067.65926.799JD3116.83071.69068.99927.309JD3216.74642.68075.38332.703JD3317.11371.59080.39338.803JD3416.85672.87076.67933.809JD3514.07371.16076.42735.267JD3610.14672.67076.89534.225JD3710.13470.63078.41537.785JD3812.24271.48078.32836.848JD3916.76370.26078.87838.618JD4012.42269.11080.46141.351JD4111.69370.83082.04941.219JD4212.87571.46082.63441.174JD4320.93572.65085.36942.719JD4416.83974.36085.67241.312JD4516.84775.53087.53742.007JD4610.99576.28092.10745.827JD4710.91974.16092.98048.820JD4816.58571.85096.92955.079JD4916.65370.26099.76559.505JD5025.06071.470101.93660.466JD5116.53469.880103.61263.732JD5216.71267.350105.36768.017JD5325.31364.810106.48571.675JD5416.78862.190107.99975.809JD5516.83966.750104.51367.763JD5616.43868.530102.64664.116JD5733.15070.290100.96660.676JD5816.84771.63099.79758.167JD5916.78073.560100.04256.482JD6016.42476.25098.76652.516JD6112.34177.68096.78249.102JD6221.02778.24095.79547.555JD6324.97577.19093.16445.974JD6416.48475.38093.34947.969JD6516.77176.61094.23347.623JD6616.89074.35090.68846.338JD6716.77177.53088.44340.913JD6810.36275.24086.44341.203JD6925.82273.86085.98642.126JD7015.45271.54083.52341.983JD7116.78871.20083.36742.167JD7216.72972.73083.83541.105JD7316.71273.68083.23139.551JD7411.68275.38080.84935.469JD7527.15174.16079.99935.839JD7615.45276.29075.60329.313JD7716.85674.38074.54430.164JD7816.79772.94074.84831.908JD7916.76372.72076.20333.483JD8014.00671.35070.74529.395JD8116.80575.83079.75633.926JD8216.81476.98080.91933.939JD8321.39674.36086.88242.522JD8416.73771.58084.22142.641JD858.74070.20080.52140.321JD8613.09172.85087.74144.891JD8730.47770.26089.52549.265JD8816.83968.63086.94348.313JD8916.81470.25083.52343.273JD9010.11772.15078.98536.835JD9113.61372.69090.88148.191JD9216.83973.48092.20648.726JD9326.63674.62093.66649.046JD9416.87371.86091.29049.430JD9516.82270.23088.23048.000JD9611.65071.09084.35443.264JD978.73172.80093.86651.066JD9815.79073.74094.97951.239JD9932.01875.29096.33951.049JD10016.62773.60092.93649.336JD10116.67071.87090.65748.787JD10212.56269.58087.62348.043JD10315.01071.63097.86656.236JD10416.66172.98099.83056.850JD10516.87372.85097.20454.354JD10616.81471.96099.23957.279JD10716.80572.07093.67351.603JD10816.80570.66094.56453.904JD10914.95371.77083.98042.210JD11014.93673.87082.99339.123JD11116.81471.36083.06441.704表3-6平差計算管段參數(shù)表平差計算管道參數(shù)管道編號管徑(mm)管長(m)流量(L/s)流速(m/s)千米損失(m)管道損失(m)JD1-JD21600102.0002165.2801.0380.8350.085JD2-JD31600143.0002162.3451.0360.8330.119JD3-JD41000217.005796.7150.9731.2690.275JD3-JD541200984.0001354.2631.1971.5471.523JD4-JD51000589.000789.8980.9651.2490.736JD5-JD6800778.000546.8571.0411.8541.443JD6-JD7800987.000531.9291.0121.7621.739JD7-JD8800999.000515.1320.9801.6601.659JD8-JD9700986.000468.1491.1632.6542.617JD8-JD59200988.00021.8390.6433.6733.628JD9-JD10700990.000451.4371.1212.4812.456JD10-JD11700995.000434.6491.0802.3132.302JD11-JD12600991.000363.4321.1482.9742.947JD11-JD65300996.00045.9970.6062.0712.063JD12-JD13600991.000346.6691.0952.7252.701JD13-JD14600955.000330.2111.0432.4912.379JD14-JD15600991.000313.7530.9912.2662.245JD15-JD16500986.000259.1431.1663.7533.700JD15-JD72250987.00029.5420.5612.2172.188JD16-JD17500982.000242.4991.0913.3193.259JD17-JD18500994.000225.7871.0162.9082.891JD18-JD19400296.583184.0131.3806.8822.041JD18-JD78250990.00022.4860.4271.3381.325JD19-JD20400702.417175.5641.3176.3094.431JD20-JD21350991.000161.2421.56710.09510.004JD21-JD22350961.000144.7331.4068.2667.944JD22-JD23300995.000128.1901.68713.79213.723JD23-JD24250992.000111.3852.11425.83025.623JD24-JD25200661.00012.5950.3711.3270.877JD25-JD26200989.00026.5500.7815.2715.213JD26-JD27200998.00043.3551.27613.05913.033JD27-JD28200978.00060.0671.76823.87023.345JD28-JD29250996.00076.7621.45712.97212.920JD29-JD30200953.0003.7770.1110.1430.136JD29-JD80350673.037102.7150.9984.3832.950JD30-JD31200995.00012.6980.3741.3471.340JD31-JD32200995.00029.5280.8696.4176.385JD32-JD33250985.00046.2740.8785.0865.009JD33-JD34200997.00022.0050.6483.7243.713JD33-JD8535041.36185.3910.8303.1140.129JD34-JD35200996.0005.1490.1520.2540.253JD35-JD36200668.0008.9240.2630.7010.468JD36-JD37200531.58619.0700.5612.8581.519JD37-JD38200463.4144.3540.1280.1860.086JD37-JD90250203.23133.5580.6372.8070.570JD38-JD39200984.0007.8880.2320.5580.549JD39-JD40250998.00024.6510.4681.5861.583JD40-JD41250470.70537.0730.7043.3751.589JD41-JD42250527.29520.3080.3851.1080.584JD41-JD96200384.50328.4580.8385.9932.304JD42-JD43250995.00033.1830.6302.7492.735JD43-JD44250994.00010.1070.1920.3050.303JD43-JD102250486.29844.0110.8354.6352.254JD44-JD45250997.00026.9460.5111.8701.865JD45-JD46250995.00043.7930.8314.5934.570JD46-JD47300305.00054.7880.7212.8620.873JD47-JD48300986.00065.7070.8654.0063.950JD48-JD49350975.00082.2920.8002.9082.836JD49-JD50400994.00098.9450.7422.1842.171JD50-JD51900976.000711.9751.0731.7181.677JD50-JD104800993.000587.9701.1192.1212.106JD51-JD52900979.000728.5091.0981.7921.755JD52-JD531000997.000745.2210.9101.1221.119JD53-JD5412001001.0001337.4751.1831.5121.514JD53-JD55800995.000566.9411.0791.9821.972JD55-JD56800996.000550.1021.0471.8751.867JD56-JD57800947.573533.6641.0151.7721.680JD57-JD58200996.00011.7880.3471.1741.169JD57-JD60700986.000426.2961.0592.2322.200JD57-JD106350990.00062.4300.6071.7451.727JD58-JD59200996.0005.0590.1490.2450.244JD60-JD61700956.000409.8721.0182.0751.984JD61-JD62700503.233397.5310.9871.9610.987JD62-JD63600992.000341.6101.0792.6522.631JD62-JD108300991.00034.8950.4591.2421.231JD63-JD64300962.00012.7420.1680.1930.185JD63-JD66600999.000329.3771.0402.4792.476JD64-JD65300987.00029.2260.3850.8950.883JD66-JD67600998.000312.4870.9872.2492.244JD67-JD68600985.000295.7160.9342.0312.000JD68-JD69600240.140285.3540.9011.9010.457JD69-JD70200833.00019.4270.5722.9572.464JD69-JD73500988.000220.7170.9932.7892.755JD69-JD111200992.00019.3880.5712.9462.923JD70-JD71200994.0003.9750.1170.1570.156JD71-JD72250991.00012.8130.2430.4730.469JD73-JD74500988.000204.0050.9182.4112.382JD74-JD75500393.282192.3230.8652.1620.850JD75-JD76200830.00026.6190.7835.2974.396JD75-JD79400999.000133.4841.0013.8003.796JD75-JD81200988.0005.0690.1490.2460.243JD76-JD77200997.00011.1670.3291.0621.059JD77-JD78200996.0005.6890.1670.3050.304JD79-JD80350983.000116.7211.1345.5525.458JD81-JD82200999.00011.7360.3451.1641.163JD82-JD83200989.00028.5500.8406.0295.963JD83-JD84400987.000110.8680.8322.6952.660JD83-JD86500553.867160.8150.7231.5520.860JD84-JD85350992.00094.1310.9153.7303.700JD86-JD87500994.000173.9060.7821.7941.784JD87-JD88350996.00077.3280.7512.5922.582JD87-JD91600615.539309.0260.9762.2031.356JD87-JD109200998.00027.3150.8045.5565.545JD88-JD89300995.00060.4890.7963.4373.420JD89-JD90250993.00043.6750.8294.5704.538JD91-JD92700994.000322.6390.8011.3331.325JD92-JD93700997.000339.4780.8431.4641.460JD93-JD94350999.00073.8030.7172.3782.376JD93-JD97800162.377438.6330.8351.2330.200JD93-JD107250991.0001.2850.0240.0070.007JD94-JD95300996.00056.9300.7493.0723.060JD95-JD96250993.00040.1080.7613.9043.876JD97-JD98800870.000447.3640.8511.2791.113JD98-JD99800997.000463.1540.8811.3641.360JD99-JD100350994.00089.8700.8733.4233.403JD99-JD103800797.778556.2991.0591.9141.527JD99-JD105300997.00028.7430.3780.8680.865JD100-JD101350972.00073.2430.7122.3452.279JD101-JD102300999.00056.5730.7453.0373.034JD103-JD104800977.000571.3091.0872.0111.964JD105-JD106300998.00045.6160.6002.0392.035JD107-JD108250996.00018.0900.3430.8950.891JD109-JD110200770.00012.3620.3641.2820.987JD110-JD111200996.0002.5740.0760.0700.0703.5.2事故工況校核給水管網(wǎng)主要管線損壞時必須及時檢修，在檢修和恢復供水前，該管段停止輸水，整個管網(wǎng)的水力特性改變，供水能力降低。根據(jù)國家有關規(guī)定，城市給水管網(wǎng)在事故工況下，必須保證70%以上用水量。一般按最不利事故工況進行校核，即考慮靠近供水泵站主干管在最高時損壞的情況；節(jié)點壓力仍按設計時的服務水頭要求表3-7平差計算依據(jù)和結果平差計算依據(jù)和結果平差類型事故校核2、計算公式海曾威廉公式V=0.44*C*(Re/C)^0.075*(g*D*I)^0.5Re=V*D/ν計算溫度：13℃ν=0.0000013、局部損失系數(shù)：1.204、水源點水泵參數(shù):無參數(shù)5、管網(wǎng)平差結果特征參數(shù)水源點編號節(jié)點流量(L/s)節(jié)點壓力(m)JD1-1438.696109.726最大管徑(mm):1600.00最小管徑(mm):200.00最大流速(m/s):0.805最小流速(m/s):0.019水壓最低點JD25壓力(m):-0.01自由水頭最低點JD25自由水頭(m):-41.26表3-8平差計算節(jié)點參數(shù)表平差計算節(jié)點參數(shù)節(jié)點編號流量(L/s)地面標高(m)節(jié)點水壓(m)自由水頭(m)JD1-1428.92763.510109.72676.216JD22.05563.930109.68775.757JD37.95761.590109.63178.041JD44.77264.830109.51174.681JD5170.12965.230109.19173.961JD610.45066.490108.61372.123JD711.75868.210107.92169.711JD817.60164.270107.26772.997JD911.69866.160106.27070.110JD1011.75266.860105.34468.484JD1117.65467.290104.48967.199JD1211.73469.540103.51063.970JD1311.52167.630102.63565.005JD1411.52169.680101.88462.204JD1517.54870.320101.19760.877JD1611.65171.850100.28358.433JD1711.69870.21099.52759.317JD1813.50269.53098.90659.376JD195.91468.22098.64460.424JD2010.02569.42098.13158.711JD2111.55670.65097.20056.550JD2211.58071.58096.68155.101JD2311.76472.36096.17453.814JD249.78671.98095.88953.909JD259.76871.250-0.010-41.260JD2611.76470.76083.97943.219JD2711.69869.68085.14545.465JD2811.68768.20089.24751.047JD2915.52369.72092.29252.572JD3011.53270.86091.77550.915JD3111.78171.69091.91750.227JD3211.72272.68093.86651.186JD3311.97971.59095.75054.160JD3411.79972.87093.60750.737JD359.85171.16093.40652.246JD367.10272.67093.58550.915JD377.09470.63094.27053.640JD388.56971.48094.20452.724JD3911.73470.26094.42354.163JD408.69569.11095.17856.068JD418.18570.83095.95755.127JD429.01271.46096.23554.775JD4314.65472.65097.58054.930JD4411.78774.36097.71853.358JD4511.79375.53098.63953.109JD467.69676.280100.93754.657JD477.64374.160101.37857.218JD4811.61071.850103.38361.533JD4911.65770.260104.82764.567JD5017.54271.470105.93664.466JD5111.57469.880106.76066.880JD5211.69867.350107.62470.274JD5317.71964.810108.17673.366JD5411.75262.190108.90176.711JD5511.78766.750107.26970.519JD5611.50768.530106.41467.884JD5723.20570.290105.64765.357JD5811.79371.630105.11163.481JD5911.74673.560105.27361.713JD6011.49776.250104.67458.424JD618.63977.680103.80356.123JD6214.71978.240103.37255.132JD6317.48277.190102.27955.089JD6411.53975.380102.48157.101JD6511.74076.610103.13656.526JD6611.82374.350101.21856.868JD6711.74077.530100.26752.737JD687.25375.24099.42954.189JD6918.07573.86099.23955.379JD7010.81671.54098.76157.221JD7111.75271.20098.84357.643JD7211.71072.73099.43656.706JD7311.69873.68098.11354.433JD748.17775.38097.15951.779JD7519.00674.16096.82552.665JD7610.81676.29096.08549.795JD7711.79974.38096.09151.711JD7811.75872.94097.38654.446JD7911.73472.72095.35352.633JD809.80471.35093.33151.981JD8111.76475.83096.37550.545JD8211.77076.98096.58949.609JD8314.97774.36098.74454.384JD8411.71671.58097.50255.922JD856.11870.20095.80855.608JD869.16472.85099.13456.284JD8721.33470.26099.95159.691JD8811.78768.63098.62659.996JD8911.77070.25096.87556.625JD907.08272.15094.56052.410JD919.52972.690100.59557.905JD9211.78773.480101.22757.747JD9318.64574.620101.92657.306JD9411.81171.860100.70258.842JD9511.77570.23099.12858.898JD968.15571.09097.13756.047JD976.11272.800102.02259.222JD9811.05373.740102.55658.816JD9922.41375.290103.21057.920JD10011.63973.600101.46057.860JD10111.66971.870100.28958.419JD1028.79339.58098.73359.153JD10310.50771.630103.95262.322JD10411.66372.980104.90961.929JD10511.81172.850103.67160.821JD10611.77071.960104.74262.782JD10711.76472.070101.96659.896JD10811.76470.660102.60961.949JD10910.46771.77097.55355.783JD11010.45573.87097.21853.348JD11111.77071.36097.34655.986表3-9平差計算管段參數(shù)表平差計算管道參數(shù)管道編號管徑(mm)管長(m)流量(L/s)流速(m/s)千米損失(m)管道損失(m)JD1-JD21600102.0001428.9270.6850.3870.039JD2-JD31600143.0001426.8730.6840.3860.055JD3-JD41000217.005508.5170.6210.5530.120JD3-JD541200984.000910.3990.8050.7420.730JD4-JD51000589.000503.7450.6150.5440.320JD5-JD6800778.000333.6160.6350.7430.578JD6-JD7800987.000323.1670.6150.7010.692JD7-JD8800999.000311.4090.5930.6540.654JD8-JD9700986.000278.0060.6901.0120.998JD8-JD59200988.00015.8020.4652.0181.994JD9-JD10700990.000266.3070.6610.9350.925JD10-JD11700995.000254.5560.6320.8600.855JD11-JD12600991.000200.2840.6320.9880.979JD11-JD65300996.00036.6180.4821.3581.353JD12-JD13600991.000188.5500.5950.8830.875JD13-JD14600955.000177.0290.5590.7860.751JD14-JD15600991.000165.5080.5230.6940.688JD15-JD16500986.000121.6940.5470.9270.914JD15-JD72250987.00026.2670.4991.7841.761JD16-JD17500982.000110.0430.4950.7700.756JD17-JD18500994.00098.3440.4420.6250.621J