许昌市给水排水管道设计说明.docVIP

给排水管道课程设计 说明书 本设计包括给水系统、污水系统及雨水系统三部分。 给水工程为城市和工矿企业的一个重要基础设施，必须保证以足够的水量、合格的水质、充裕的水压供应生活用水、生产用水和其它用水。给水系统设计步骤：根据最高日用水量变化曲线计算水塔和清水池调节容积；进行管网定线，计算管段设计流量、管径和水头损失；最高时环状网管网平差计算；确定水塔高度和水泵扬程；分别进行不利管段事故时、消防时、最大转输时校核。然后根据上述计算，算出最高时各节点水压，绘制等水压线。 排水工程在环境保护、保障人民健康和经济上有重要意义。排水系统根据对生活污水、工业废水和雨水的不同排除方式所形成的排水系统称作排水体制。排水体制一般可分为两种类型：合流制和分流制。本设计根据当地地形特点和经济状况，采用雨水、污水分流制。设计步骤：分别对污水和雨水系统进行管网定线；然后根据各自汇水面积计算管段流量；确定管径、坡度及埋深，最后根据计算结果绘制污水管道纵断面图。 reface This design including water supply system, sewage system, rain water system of three parts. Water supply engineering for cities and industrial and mining enterprises is an important infrastructure, must guarantee that with enough water, qualified water quality, abundant water supply water for life, the production water and other water. Water supply system design steps: according to the highest daily water change curve calculation water tower and clear water reserviors regulating volume; Of pipeline alignment, calculate section design flow rate, pipe diameter and head loss; The highest ring network network adjustment calculation; Determine the water tower height and pump head; Are adverse section accident, fire, when the biggest transfer check. Then according to the calculation above, calculate the highest when the node pressure, draw water line pressing. Drainage engineering in environmental protection, safeguard the peoples health and economy has important significance. Drainage system according to the life sewage, industrial wastewater and rainwater different way out by the formation of the drainage system called the drainage system. Drainage system can generally be divided into two types: recombining system and a separate system. This design according to the local terrain characteristics and economic conditions, the rain, sewage separate system. Design steps: respectively of the sewage and rainwater drainage system of pipeline alignment; And then according to their respective water catchment area computation section flow; Determine the diame