论文总字数：31195字

摘 要

本设计考虑1~2层为市政直供；3~15为加压一区；16~28为加压二区。加压区采用变频恒“压供水，根据节能规范规定：市政管网供水压力不能满足供水要求的多层、高层建筑的给水、中水、热水系统应竖向分区，各分区最低卫生器具配水点处的静水压不宜大于0.45MPa，且分区内低层部分应设减压设施保证各用水点处供水压力不大于0.2MPa。直供部分从市政给水管网接一根DN150的引入管，另两根DN100的引入管接至地下一层生活水池和消防水池。生活水池为装配式不锈钢生活水箱，消防水池采用砖砌混凝土结构，放置于地下室。排水采用生活污、废水合流制。泵房排水槽经汇集排至地下一层污水井，经潜污泵提升排至检查井再经过化粪池处理后排入市政排水管。建筑里所有给排水横管在吊顶内，将各单元生活污水管适当汇集转换到排水立管后排出室外。屋面雨水经屋面雨水斗收集后由雨水管排至地面作散水。

根据规范，该建筑为一类住宅建筑，属中度危险一级。室内消防流量20L/s，室外15L/s。充实水柱取12m，水龙带长度取25m，水枪喷嘴流量5.2L/s，消防立管管径为DN100、DN150。在顶层设试验消火栓一个，每个室内消火栓箱内均设有远距离启动消防泵的按钮。

该建筑采用湿式自动喷淋灭火系统，报警阀设于地下一层，各层均设水流指示器和信号阀，其信号均送入消防控制中心进行处理。各层均采用自动喷淋系统，地下一层采用下垂式喷头。各层均设末端试压装置以及放空管。本工程的自动喷水灭火系统分1个区。屋顶水箱为12立方米，，贮存有生活、10min自动喷水灭火系统用水量。自动喷水灭火系统和消火栓系统的初期灭火由水箱供水，后期供水由地下室的消防水泵和自喷泵供水，各支管与立管连接处设置减压孔板。

根据重力式雨水系统和虹吸式雨水系统的设计分析及造价对比后，本设计采用重力式屋面雨水排水系统。

关键词:给水系统 排水系统 消火栓系统 自动喷水灭火系统 雨水系统

Abstract

This 1-2 layer design considerations for the municipal straight for; 3 ~ 15 for pressurized area; 16 ~ 28 for pressurized two area. Pressure area adopts frequency conversion constant \"pressure water supply, according to the rules and regulations of energy conservation: municipal pipe network pressure of water supply can not meet the requirement of the water supply, multi-storey and high-rise buildings water supply, water, hot water system should be vertical division, each partition minimum sanitary ware water distribution point of hydrostatic pressure should not be greater than 0.45 MPa, and partition in the lower part shall set up relief facilities ensure each point with water supply pressure is greater than 0.2 MPa. Straight part for a 6 from the municipal water supply pipe network is introduced into tube, the introduction of the other two DN100 pipe joint and fire the pool to underground life. Life pool for fabricated stainless steel water tank, brick concrete structure is used in fire pool in the basement. Drain the life sewage, waste water system of confluence. Pump room by the pool to the sink, underground sewage well by the submersible sewage pump up to check well drained and then treated with septic tank back into the municipal drainage pipe. All water supply and drainage in building horizontal tube inside condole top, each unit of sewage drainage riser tube together into appropriate back out. Roofing rainwater after roof rainwater head to collect the aproll by storm sewer line to the ground.

According to the norm, should building is a type of building, belong to medium degree dangerous one class.Indoor fire fight discharge 20 L/s, the outdoors 15 L/s.Enrichment water pillar take a 12 m and water dragon take length to take a 25 m, water gun spray the mouth discharge 5.2 L/s, and the fire fight sign a tube tube path for the DN100, DN150.Establish to experiment penstock 1 at the crest layer, all establish inside each indoor penstock box long-distance leave start fire fight pump of button.

Should building adoption wet type auto spray to pour to extinguish fire system, report to the police valve to establish in underground 1 F, each all establish water current indicator and signal valve, its signal all send into fire fight control centre to carry on processing.Each all adoption auto spray to pour system, underground 1 F adoption descend a hang type to spray a head.Each all establish bitter end to try to press equip and put empty tube.The auto of this engineering spray water to extinguish fire system cent 3 area.Roof water tank for 12 sign a square rice, is life fire fight suitable for use water tank, store to contain life, 10 min auto spray water to extinguish fire system, indoor penstock system to use water quantity.Auto spray water to extinguish fire system and penstock system of initial stage extinguish fire from the water tank supply water, empress period supply water from fire fight water in the ground floor pump with from spray pump supply water, each tube with sign tube conjunction place constitution decompression bore plank.

According to the design of the gravity type rain water system and the Hong absorb type rain water system analysis and after building price contrast, this design adoption the Hong absorb type house noodles rain water drain system, have rain water Dou little, sign tube little and horizontal mourn tube not demand slope, displacement and emissions speed quick etc. characteristics.(From profession unit design)

Inside this building to 4-13 F constitution concentration life hot water supply, adoption fulltime system supply water, hot water supply is bottom line top give type.Is assurance life hot water of supply, design adoption machine circulation piping system.The hot source is supply by the this engineering outdoors municipal services steam tube, steam temperature is 133 ℃ .

Keyword:the water supply system drain a system penstock system auto spray water to extinguish fire the system hot water of the system rain water system

计算书目录

摘要 2

Abstract 3

第一章——给排水工程设计任务书 8

1.1工程概况： 8

1.2设计依据： 8

1.3设计内容： 8

1.4设计图纸及要求： 8

1.5设计进度计划： 9

第二章 设计说明书 10

2.1建筑给水系统设计 10

2.1.1给水系统选择 10

2.1.2给水系统组成 11

2.1.3给水管道布置与安装 11

2.2建筑排水系统设计 13

2.2.1排水方式选择 13

2.2.2通气管选择 13

2.2.3排水系统的组成 13

2.2.4排水管道及设备安装要求 13

2.2.5关于清扫口、检查口 14

2.3建筑消火栓系统设计 15

2.3.1设计说明 15

2.3.2设计参数 15

2.3.3系统设计 15

2.4建筑自动喷水灭火系统设计 16

2.4.1设计说明 16

2.4.2基本设计数据 16

2.5建筑雨水系统设计 17

2.5.1系统选择 17

2.6各系统管道材料选择 17

第三章 计算说明书 19

3.1给水系统 19

3.1.1给水系统所需水量 19

3.1.2地下室贮水池容积 19

3.1.3设计秒流量 19

3.1.4给水管道材料的选择 21

3.1.5给水管网水力计算 21

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