设计简介 |
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文档包括:
WORD版本说明书1份,共63页,约21000字
CAD版本图纸,共12张
摘 要
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。
关键词:设计流量,给水系统,排水系统,雨水系统,管网定线
ABSTRACT
The design includes water supply systems, sewerage and drainage systems in three parts.
Water supply project for urban, industrial and mining enterprises as an important infrastructure, the need to ensure a sufficient quantity of qualified water, ample supply of water pressure, water and other production water. Water system design steps ,According to the maximum daily water demand curve calculation of the towers and adjust volume-pool. Network for alignment of the calculation of the design flow, diameter and head loss. Ring Network at the highest net adjustment calculation; Identify high towers and pumps lift.Were adverse possession of the accident, fire, the biggest transfer when checking. Then Based on the above calculations, calculated at the maximum node pressure, drawing water pressure line.
Drainage projects in environmental protection, protection of the people's health and economic importance. According to the drainage system of domestic sewage, industrial wastewater and stormwater different exclusion as a result of the drainage system known as the drainage system. Drainage system can be divided into two general types : Combined and triage system. According to the design characteristics of the local terrain and the state of the economy, use of rainwater and sewage triage system. Design steps : Respectively of sewage and stormwater systems network alignment. Then according to their respective catchment area of pipe flow; Determined diameter, depth and slope, Finally, according to the results section of map drawing sewers.
KEY WORDS: Design flow, Water-supply System, Drainage system,
Stormwater system, Pipe network fixed-line
目 录
前言...……...………………………………………………………………………………1
第1章 给水排水管网设计任务
1.1 给水设计....….…...………………………………………………………………2
1.1.1 某城镇输水与配水管网的课程设计(扩初)..…….…..……...…………………2
1.1.2 兰州某移民新镇所在地区状况资料.….….…..……...…………………………4
1.2 排水管网部分.....……...…………………………………………………………5
1.2.1 某城镇城市排水管网工程初步设计..……..……………………………………5
1.2.2 排水系统所在地区状况资料..…….…..……...…………………………………7
第2章 给水设计计算
2.1 计算最高日用水量及调节构筑物容积..…….…..……...………………………8
2.1.1 计算最高日用水量....….…...……………………………………………………8
2.1.2 绘制日用水量变化曲线及计算水塔和清水池容积..…….…..……...…………9
2.1.3 清水池和水塔有效容积的计算…….…..……...………………………………10
2.2 管网布置及水力计算…….…..……...…………………………………………12
2.2.1 给水管网的平面布…….…..……...……………………………………………12
2.2.2 管网计算…….…..……...………………………………………………………13
2.2.3 水泵的选择…….…..……...……………………………………………………20
2.3 管网校核………….…..……...…………………………………………………21
2.3.1 最不利事故时校核…….…..……...……………………………………………21
2.3.2 最高时加消防时校核…….…..……...…………………………………………24
2.3.3 最大转输时校核…….…..……...………………………………………………27
2.4 管网水压计算…….…..……...…………………………………………………30
第3章 排水设计
3.1 管网水压计算…….…..……...…………………………………………………33
3.2 设计任务…….…..……...………………………………………………………33
3.3 排水体制选择……….…..……...………………………………………………33
3.3.1 排水系统规划设计原则……….…..……...……………………………………33
3.3.2 排水系统体制的选择……….…..……...………………………………………34
3.4 污水管道的设计……….…..……...……………………………………………35
3.4.1 在小区平面图上布置污水管道……….…..……...……………………………35
3.4.2 街区编号并计算其面积……….…..……...……………………………………36
3.4.3 划分设计管段及计算设计流量……….…..……...……………………………36
3.4.4 水力计算……….…..……...……………………………………………………39
3.4.5 绘制管道平面图和纵剖面图……….…..……...………………………………40
3.4.6 中途泵站设计……….…..……...………………………………………………41
3.4.7 倒虹吸的设计……….…..……...………………………………………………41
3.4.7 注意事项……….…..……...……………………………………………………41
3.5 雨水管道的设计…….…..……...………………………………………………41
3.5.1 划分排水流域和管道定线……….…..……...…………………………………41
3.5.2 划分设计管段……….…..……...………………………………………………42
3.5.3 划分并计算各设计管段的汇水面积……….…..……...………………………43
3.5.4 求单位面积径流量q0……….…..……...………………………………………46
3.5.5 雨水水力计算……….…..……...………………………………………………47
参考文献………..…………………………………………………………………………49
致谢….…….………………………………………………………………………………50
附录….…….………………………………………………………………………………51
诚信声明………..…………………………………………………………………………60
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