【正文】 河海大學(xué) 畢業(yè)設(shè)計(jì) 1 摘要： 隨著人口增長、經(jīng)濟(jì)發(fā)展及人類生活水平的提高，人類對水的需求日益增長，對水質(zhì)、水量的要求越來越高。 本設(shè)計(jì)為湖北省某城市給水初步設(shè)計(jì)。 水源采用地表水，取水方式：岸邊合建式取水構(gòu)筑物取水。 凈水廠近期規(guī)劃產(chǎn)水能力 10萬噸 /天，遠(yuǎn)期規(guī)劃 15 萬噸 /天。凈水工藝流程為：原水 → 取水泵站 → 管式混合器 → 往復(fù)式隔板絮凝池 → 平流沉淀池 → V型濾池 → 液氯消毒 → 清水池 → 送水泵站 → 城市管網(wǎng)。根據(jù)原水水質(zhì)及水溫，絮凝劑選用堿式氯化鋁，最高投藥量為 。選液氯消毒劑，采用濾后加氯，最大加氯量為 。水廠綠化 面積占水廠總面積的 35%。出水水質(zhì)符合《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》（ GB57492021）。 關(guān)鍵詞： 岸邊式取水構(gòu)筑物；往復(fù)式隔板絮凝池；平流沉淀池； V型濾池河海大學(xué) 畢業(yè)設(shè)計(jì) 2 Absteract： With the population growth, economic development and the improving of living standards , human not only demands for more and more water, but also increases their demands on water quality . This design is about the water supply project for the Hubei area of China which called city. According to the original information, the raw water es from the surface water by the type of semiundergroundshore. The Designscale of the water purification plants is about 100000 t/d， longterm plants is 150000 t/ for the water purification: raw water →first pumping station →tube type mixer→Reciprocating baffled flocculation tank → stratospheric sedimentation tanks → Vfilter →clearwell →secondary pumping station → Pipeline Network of city. According to the original water water quality andthe water temperature, Flocculant for PAC, the maximum dosage of mg/L. Chooses the liquid chlorine disinfectant, after filtration chlorination design uses green plants total area of 35%. Waterworks water quality conforms to the standard of drinking water requirement. According to the distribution of users and the water quality, the water supply works for the city using the way of district water the water quality, According to the design results, all of the water Pressure,water quality and water storage can meet the uses’demands. （ GB57492021） Keywords : Shorewater structures。 Reciprocating baffled flocculation tank。 Stratospheric sedimentation tanks。 Vfilter 河海大學(xué) 畢業(yè)設(shè)計(jì) 3 目 錄 前言 .................................................................................................................................... 1 第 1 章 設(shè)計(jì)任務(wù)書 .......................................................................................................... 2 畢業(yè)設(shè)計(jì)題目 ...................................................................................................... 2 畢業(yè)設(shè)計(jì)（論文）的主要內(nèi)容 .......................................................................... 2 設(shè)計(jì)目的 .................................................................................................... 2 設(shè)計(jì)原始資料 ............................................................................................ 2 畢業(yè)設(shè)計(jì)（論文）的要求 .................................................................................. 4 進(jìn)度安排 .............................................................................................................. 5 主要參考文獻(xiàn) ...................................................................................................... 5 第 2 章 總論 ...................................................................................................................... 7 項(xiàng)目背景 .............................................................................................................. 7 環(huán)境概況 .............................................................................................................. 7 設(shè)計(jì)水質(zhì)水量 ...................................................................................................... 7 設(shè)計(jì)水質(zhì) .................................................................................................... 7 水質(zhì)分析 .................................................................................................... 7 設(shè)計(jì)水量 .................................................................................................... 8 執(zhí)行標(biāo)準(zhǔn) .............................................................................................................. 8 第 3 章 設(shè)計(jì)說明書 .......................................................................................................... 8 水廠廠址選擇 ...................................................................................................... 8 工藝流程的選擇 .................................................................................................. 9 取水構(gòu)造物 ........................................................................................................ 10 取水構(gòu)筑物形式的選擇 .......................................................................... 10 進(jìn) 水間 ...................................................................................................... 11 取水泵房 .................................................................................................. 11 加藥間 ................................................................................................................ 12 混凝劑藥劑的選用 .................................................................................. 12 投加方式的選擇 ...................................................................................... 13 藥劑溶解池 .............................................................................................. 14 溶液池 ...................................................................................................... 14 加藥間 ...................................................................................................... 14 混合設(shè)備 ............................................................................................................ 14 絮凝池 ................................................................................................................ 15 絮凝池類型的選擇 .................................................................................. 15 絮凝池尺寸 .............................................................................................. 16 沉淀池 ................................................................................................................. 16 沉淀池類型的選擇 .....