毕业论文--江西永丰县城给水工程扩大初步设计计算说明.docVIP

江西永丰县城给水工程扩大初步设计 摘要 本设计题目为：江西永丰县城给水工程扩大初步设计，设计规模为：近期50000，远期60000，进水水质符合国家规定的饮用水源水质标准要求。根据所给资料进行给水工艺设计和单体构筑物设计计算，包括取水输水构筑物设计、输配水管网设计、净水厂设计、工程概算和制水成本计算。净水厂采用工艺流程为：源水→一泵站→混凝剂投入管式混合→折板絮凝池→平流沉淀池→V型滤池→清水池→二级泵房→城市给水管网。选用聚合氯化铝为混凝剂，液氯为消毒剂。水厂出水水质要求达到《生活饮用水卫生规范》（GB5749—2006） 。 此净水厂的建筑工程总造价，年经营费用，单位制水成本为0.79元/m。 关键词：永丰县；给水工程；净水厂；一级泵站；折板絮凝池；平流沉淀池；V型滤池；清水池；二级泵站；城市管网 The preliminary design of the expansion of Jiangxi County of Yongfeng water supply project Abstract The main task of this design is in yongfeng County in Jiangxi Province, the preliminary design of the county water supply project. The key elements of design: design to determine the size, water supply systems, water supply schemes, water engineering, water treatment plant design, the secondary pumping station design and losers .Water distribution network with the calculation and adjustment. Design specification and design of the book is composed of two parts calculation. The topic of this design is the preliminary design of the expansion of Jiangxi: Yongfeng County water supply engineering, design size: the recent 50000, forward 60000, the water quality to meet the requirements of drinking water source water quality standards prescribed by the state. According to the data of design calculation of water supply process design and single building, including water conveyance structure design, delivery and distribution pipe network design, water purification plant design, project budget and water cost calculation. Net water using process: water→one pumping stations→coagulant into tubular mixing→folded plate flocculator→horizontal flow sedimentation tankV→ type filter→ clean water pond → two pumping station→ city water supply network. Poly aluminum chloride as a coagulant, liquid chlorine as disinfectant. Water quality meets the requirement of the sanitary standard for drinking water (GB5749 - 2006). Keywords：Yongfeng County;water supply engineering;waterworks; one pumping station