【正文】
.0010 2 983 400 .57 .0178 3 1018 800 .70 .77 .0022 4 970 700 .55 .57 .0027 sqtotal= .009 dq= .37 ================================================================== 環(huán)號= 14 閉合差= .000 管段號 管長 管徑 流速 流量 1000I 水頭損失 sq (米) (毫米) (米/秒) (升/秒) (米) 1 683 700 .10 .03 .02 .0005 2 1061 800 .33 .19 .21 .0012 3 944 700 .17 .07 .0010 4 860 600 .26 .18 .0022 sqtotal= .009 dq= .02 ================================================================== 管段起端的水壓標高和終端水壓與該管段的水頭損失存在下列關系=+節(jié)點水壓標高,自由水壓與該處地形標高存在下列關 =水壓計算結果見所附等水壓線圖中的標注。(3)與干管線垂直的連接管,其作用主要是溝通平行干管之間的流量,有時起一些輸水作用,有時只是就近供水到用戶,平時流量不大,只有在干管損壞時 才轉輸較大的流量,因此連接管中可以較少的分配流量?!芁管網總的有效長度 m 沿線流量計算表12 沿線流量計算管段號管段長度管段設計長度長度比流量沿線流量12300300 235800 34847424 451030515 56725363 6710581058 78800800 89953953 9101071536 103917459 831137569 7410641064 211993497 1112985493 1213465465 1314880880 141610671067 1615800800 1513830830 1517388388 1618930930 1718883883 171910231023 1920842842 1820670670 121587587 212411941194 112271471422248208202223950950242569269213231015101523259809802528105010502526943943262786186127286256252930586586 293271871832338188183331546546303167567532349679673335687687343598398334361018101836379709703537944944 3538106110613839683683 3739860860 212921121061 總計39813 節(jié)點流量管段中任一點的節(jié)點流量等于該點相連各管段的沿線流量總和的一半 α=計算結果見下表表 13 節(jié)點流量計算表節(jié)點編號節(jié)點連接管段集中流量節(jié)點流量節(jié)點總流量112,1212211,21 334,38,310445,43,47556,54 667,65 776,78,74887,89,839910,9810109,103111122,112,1112 121213,1211131312,1315,1323,1314 141413,1416151513,1516,1517161615,1614,1618171715,1718,1719181817,1820,1816191920,1917202019,20181221211,2124,2129222211,2223,2224232313,2325,2322242425,2421,2422252524,2526,2528,2523 262627,2625272726,2728282827,2825292930,2932,2921303031,3029313129,3133323229,3233,3234 333331,3332,3335343432,3436,3435353533,3534,3537,3538 363634,3637373736,3735,3739383839,3835393938,3937總計 管網平差根據(jù)節(jié)點流量進行管段的流量分配分配步驟:(1)按照管網的主要方向,初步擬定個管段的水流方向,并選定整個管網的控制點。一區(qū)有工廠A,火車站 ∑q=+12=最高日最高時用水量Qh =qs=( Qh ∑q)/ ∑L=()/39813= L/()Qh為最高日最大用水量L/s。本題取兩個清水池,矩形,每座有效容積為34000m179。應建成矩形較經濟,個數(shù)一般不少于兩個,并能單獨工作和分別放空。W3 =qfNT=310036002=216000L=2160m3 清水池有效容積清水池有效容積W為:W=(1+1/6)(W1+W2+W3)= 179。Q4=(Q1+Q2+Q3) 11%= m/d管網漏失水量按最高日用水量的10%計算。表11 工廠企業(yè)職工用水量工廠企業(yè)職工用水量(L/d)熱車間生活35300030%=31500淋浴60300030%80%=43200一般車間生活25300070%=52500淋浴40300070%20%=16800Q21=31500+43200+52500+16800=144000L/d=144 m/d (2) 工業(yè)生產用水量Q22:m=14000t=10㎏ 故 Q22=14000 m/d(3)工業(yè)用水量Q2:Q2= Q21+Q22=14144 m/d (1)澆灑道路用水量Q31根據(jù)《給排水快速設計手冊》,每天23次,每天2次計算,而且由于面積太大澆灑面積按總面積的10%算。該城市為昆明市,隸屬云南省,查《室外排水設計規(guī)范》P61,人口50萬到100萬為大城市,云南省屬一區(qū),則綜合生活用水定額為240~390 L/,本設計采用300L/%。 最高日用水量計算城市最高日用水量包括城市或居住區(qū)的最高日綜合生活用水量、工業(yè)生產用水量、澆灑道路用水量、管網漏失水量和未預見用水量。城市的輸水管和配水管采用鋼管(管徑)1000mm時和鑄鐵管。考慮要點有以下:給水系統(tǒng)布局合理;不受洪水威脅;有較好的廢水排除條件;有良好的工程地質條件;有良好的衛(wèi)生環(huán)境,并便于設立防護地帶;少拆遷,不占或少占良田;施工、運行和維護方便。因而采用統(tǒng)一給水系統(tǒng)。該城市的地勢不平坦有太大的起伏變化。 At the same time, people in the life of the production process to use the effluent water pooling and transported to a suitable site for purification of up to a certain quality standard, or repeated use, or irrigation or discharged into the water body. Indoor water supply and drainage project is the task of distribution of outdoor water supply system to supply water purification organizations in all indoor water, the sewage will be used to water to remove outdoor pool drainage systems.Does for the project class specialized student, the practice study and the design is our own knowledge acquisition and the experience best link. Moreover in the graduation project undergraduate course plan of instruction the essential link, after the undergraduate course stipulates the practical education which pletes the plete curriculum to have to carry on, the student through the graduation project, the synthesis utilizes the elementary theory, the basic skill which and deepens studies, trains the student independently to analyze and to solve the question ability, can enable the student through the graduation project to have:(1) Grasps the consult standard, the standard design atlas, the product catalog method, enhances the putation, the cartography and the pilation design explanation level, finishes an engineer39。熟練專業(yè)軟件應用。提高方案的比較、技術經濟、環(huán)境、社會等諸方面的綜合分析和論證能力。學生通過設計,綜合運用和深化所學的基本理論、基本技能,培養(yǎng)學生獨立分析和解決問題的能力,通過設計能使學生具有:①掌握查閱規(guī)范、標準設計圖集,產品目錄的方法,提高計算、繪圖和編寫設計說明的水平,作好一個工程師的基本訓練。