【正文】 ................................ 4 取水構(gòu)筑物及凈水工藝的選擇與確定 ........................................................ 5 凈水廠取水構(gòu)筑物的選擇與確定 ............................................................. 5 凈水廠工藝的選擇與確定 ........................................................................ 5 2 取水工程的設(shè)計計算 .....................................................................................15 設(shè)計水量 ......................................................................................................15 各項用水量 ...............................................................................................15 最高日設(shè)計用水量 ...................................................................................16 取水構(gòu)筑物、一級泵站、原水輸水管、水處理構(gòu)筑物設(shè)計流量 .........16 取水工藝計算 ..............................................................................................16 取水頭部的設(shè)計與計算 ...........................................................................16 集水井的設(shè)計與計算 ...............................................................................16 取水水泵選配及取水泵房工藝布置 ...........................................................17 取水泵房的平面形式及設(shè)計要求 ............................................................17 設(shè)計參數(shù) ...................................................................................................18 設(shè)計計算 ...................................................................................................18 3 凈水廠工藝設(shè)計與計算 .................................................................................26 穩(wěn)壓塔設(shè)計 ..................................................................................................26 投藥工藝計算 ..............................................................................................27 藥劑的選擇及投加方式 ...........................................................................27 藥劑溶解池和溶液池計算 .......................................................................27 混合 .............................................................................................................28 絮凝 .............................................................................................................30 設(shè)計條件 ...................................................................................................30 設(shè)計計算 ...................................................................................................31 沉淀 .............................................................................................................35 設(shè)計條件 ...................................................................................................36 設(shè)計計算 ...................................................................................................36 過濾 .............................................................................................................39 平面尺寸計算 ...........................................................................................41 濾池高度 ...................................................................................................42 配水系統(tǒng) ...................................................................................................43 洗砂排水槽 ...............................................................................................47 濾池反沖洗 ...............................................................................................50 進出水系統(tǒng) ...............................................................................................51 消毒 .............................................................................................................52 設(shè)計概述 ...................................................................................................52 設(shè)計條件 ...................................................................................................54 設(shè)計計算 ...................................................................................................54 設(shè)備選擇 ...................................................................................................54 加氯間布置 ...............................................................................................54 清水池 ........................................................................................................55 平面尺寸計算 ...........................................................................................55 管道系統(tǒng) ...................................................................................................56 清水池的附屬設(shè)備 ...................................................................................57 二級泵站 ......................................................................................................58 水泵和電機的選擇 ...................................................................................58 吸水管、出水管流速管徑的確定 ............................................................59 泵站的確定 ...............................................................................................59 配套設(shè)備 ...................................................................................................62 4 凈水廠總體布置 .............................................................................................64 凈水廠平面布置 ..........................................................................................64 生產(chǎn)區(qū)的布置 ...........................................................................................64 生活區(qū)的布置 ...........................................................................................64 道路的綠化 ...............................................................................................65 水廠管線布置 ...........................................................................................65 凈水廠高層布置 ........................................................................................66 構(gòu)筑物之間的水頭損失 .........................