荆门市经济开发区给水工程初步设计

武汉科技大学本科华业设计摘要本设计为荆门市经济开发区提供了技术可行、经济合理的供水方案。本研究基于荆门市经济开发区远景供水需求，综合考虑区域发展规划与水文地质特征，开展了日供水量5万立方米的供水系统工程初步设计工作。研究内容涵盖水源取用、净水处理工艺、输配水管网系统及配套设施的规划设计，旨在适应开发区未来人口集聚与产业升级的用水需求，并兼顾供水系统的安全可靠与经济高效。水源工程选取汉江作为取水水源，采用固定式岸边取水构筑物设计方案，通过一级提升泵站将原水输送至净水处理厂。净水工艺采用”混凝-沉淀-过滤-消毒”的标准化处理流程，针对原水浊度特征及有机污染物含量，特别设计了网格絮凝反应池、平流式沉淀池与V型滤池组合工艺。处理系统末端采用液氯消毒工艺，确保出水水质达到《生活饮用水卫生标准》(GB5749-2022)的各项指标要求。输配水管网系统采用环状管网布局，主要采用球墨铸铁管材，通过管网水力平衡计算确定最优管径与泵站扬程参数，确保管网最不利点供水压力不低于0.28P。设计方案同时包含水厂总平面布置优化、高程系统设计以及污泥处理系统（采用浓缩脱水一体化工艺)。经济技术评估显示，项目概算总投资1.4亿元，单位供水成本0.99元/立方米，具备良好的社会效益与环境可持续性。本项研究为荆门市经济开发区供水系统建设提供了技术可靠、经济优化的整体解决方案。关键词：给水工程：水质水量：工艺流程：水处理构筑物i武汉科技大学本科毕业设计AbstractThis paper aims to address the long-term water supply demand of the Jingmen EconomicDevelopment Zone.Based on regional development planning and hydrogeological conditions,a preliminary design for a water supply project with a daily capacity of 50,000 cubic meters hasbeen completed.The design includes water intake engineering,water treatment plant processdesign,water distribution network systems,and ancillary facilities,ensuring the water supplymeets future population growth and industrial development needs while guaranteeing safetyand cost-effectiveness.For water intake engineering,the Han River is selected as the water source,utilizing ashore-based intake structure,with raw water transported to the treatment plant via a primarypumping station.The water treatment process adopts the conventional "coagulation-sedimentation-filtration-disinfection"method.Considering the raw water turbidity and organiccontent,the design incorporates a grid flocculation tank,horizontal flow sedimentation tank,and V-type filter as core units,followed by chlorine disinfection to ensure effluent qualitycomplies with the Standards for Drinking Water Quality (GB 5749-2022).The water distribution network is designed in a looped configuration,primarily usingductile iron pipes.Pipe diameters and pumping station head are determined through hydrauliccalculations to ensure end-point service pressure>0.28 MPa.The design also covers the overallplant layout,elevation optimization,and sludge treatment systems (sludge thickeningmechanical dewatering).Economic analysis indicates a total project investment ofapproximately 140 million yuan,with a unit water production cost of 0.99 yuan/m3,demonstrating favorable social benefits and sustainabilityThis design provides a technically feasible and economically viable water supply solutionfor the Jingmen Economic Development Zone.Keywords:Water Supply Engineering;Water Quality and Quantity;ProcessFlow;Water Treatment Structure武汉科技大学本科毕业设计目录绪论1设计原始资料1.1城市概况21.1.1规划人口.21.1.2给水规划内容.21.2源水情况2用水量计算.42.1最高日用水量.42.1.1城市最高日综合生活用水量（包括公共设施生活用水量)2.1.2工业企业用水量42.1.3未预见水量和管网漏失水量2.2最高日消防用水量.53地表取水工程设计…63.1水源的选取63.2地表取水构筑物位置与形式...63.2.1地表取水构筑物位置选择63.2.2地表取水构筑物形式.63.2.3地表取水构筑物设计计算63.2.4地表取水泵站设计计算.73.2.5初选水泵和电机P3.2.6泵房布置103.2.7吸水管路和压水管路的计算103.2.8水头损失的计算和扬程的校核113.2.9泵房高程布置123.2.10附属设备134净水厂设计.154.1厂址的选择154.2工艺流程的选择154.2.1设计水量"154.2.2工艺流程选择154.3加药间的