西宁市和谐家园13#商住楼给排水设计设计总说明1 设计依据（1）建设单位提供的本工程有关资料和设计任务书及条件图；（2）国家现行有关给水、排水、消防和卫生等设计规范和规程。
《建筑给水排水设计规范》GB50015-2003；《高层民用建筑设计防火规范》GB50045-95（2005年版）；《自动喷淋灭火系统设计规范》GB50084-2001；《建筑灭火器配置设计规范》GB50140-2005。
2 工程概况本设计为高层建筑给水排水工程设计，建筑性质为一类高层商住楼，总高度90.09 m，共31层。
地下一层为戊累库房；地上1层为商场和车库；地上2～31层为普通住宅。
此外，屋顶电梯机房的上方设有屋顶水箱间，室外地坪标高为-0.300 m。
3 设计成果本设计设有生活给水系统、生活热水系统、生活排水系统、屋面雨水排水系统、消火栓给水系统、自动喷淋灭火系统。
3.1 生活给水系统市政给水管网供水压力为0.36 MPa。
本设计给水系统分为三个区。
2～6层为低区，由市政给水管网直接供水；7～19层为中区，由小区水泵房里变频泵加压供水；20～31层为高区，由小区水泵房里变频泵加压供水，小区水泵房里各区加压泵均为2台，一用一备。
本设计中低区最高日用水量为16.8 m3/d，最大时用水量为1.40 m3/h，平均时用水量为0.70 m3/h；中区最高日用水量为43.68 m3/d，最大时用水量为3.64 m3/h，平均时用水量为1.82 m3/h；高区最高日用水量为40.32 m3/d，最大时用水量为3.36 m3/h，平均时用水量为1.68 m3/h；设计中用户内的给水管选用PP-R冷水管，除了厨房和卫生间外都是埋地副敷设，水暖井的给水选用的是衬塑钢管，明装在水暖井内。
住宅层的水表安装在水暖井内，采用室外计量的方式。
3.2 生活热水系统本设计中采用集中供热，在屋面设置太阳能热水系统和辅助加热设施，本设计中热水管路只设计到屋面，在屋面预留接口，屋面太阳能由专业厂家来设计完成。
3.3 消火栓给水系统室内消火栓用水量为30 L/s，室外消防用水量为20 L/s，室内消火栓系统采用临时高压给水系统。
屋顶水箱间内设置容积为18 m3的组合式不锈钢水箱一座，供建筑内消防水源及加压稳压之用。
室外设置两套型号为SQX150-C的地下式消防水泵接合器，分别与室内消火栓给水管网相连。
本设计采用减压稳压型消火栓，消火栓箱内配置栓口直径为65 mm的消火栓1只，长度为25 m的衬胶水龙带1条，水枪喷嘴直径为19 mm的水枪1支。
消火栓栓口距地1.10 m。
每个消火栓处应设有直接启动消防水泵的按钮，并有保护的设施。
室内消火栓、阀门等设置地点设置永久性固定标识。
阀门保持常开，并采用有明显的启闭标志的蝶阀。
消防柜内设置采用磷酸铵盐干粉灭火器，配置数量依据GB50140-2005《建筑灭火器配置设计规范》，每个消防柜内配置2只3Kg（5A）手提式磷酸铵盐干粉灭火器。
3.4 自动喷淋灭火系统本设计地下1层、1层商铺及2～31层住宅公共部分均设有自动喷淋灭火系统，以商铺为准按中危险Ⅰ级设计。
平时管网压力由屋顶消防水箱维持。
火灾时喷头动作，水流指示器动作向消防中心显示着火区域位置，此时，湿式报警阀处的压力开关动作，启动自喷泵，并向消防中心报警。
喷头均采用下垂型68度玻璃球喷头。
室外设一套型号为SQX150-C的地下式消防水泵接合器，与湿式报警阀前的自喷给水管网相连。
3.5 生活排水系统本设计采用污、废水合流制排水方式，室内±0.000以上污、废水重力自流入室外污水管，地下室污、废水采用潜水排污泵提升至室外污水管网，污水经化粪池处理后，排入市政污水管网。
由于建筑高度及每根污水、废水立管所承担的排水当量数较大，为使排水管道中气压波动尽量稳定，防止管道水封破坏，在建筑屋顶设有伸顶通气管，排水立管向上延伸，穿出屋顶与大气连通，除了厨房的排水立管和水暖井内的排水立管外其他每根立管均设有专用通气立管，由于建筑主要功能为高层住宅，为保持排水通畅，专用通气立管每两层设结合通气管与立管相连。
地下一层设有集水坑1、集水坑2、集水坑3收集废水，每个集水坑内设有型号为50WQ18-30-3的潜污泵两台，一用一备。
3.6 屋面雨水排水系统本设计的屋面雨水排水系统采用内排水系统，雨水经雨水斗收集汇入雨水立管，然后再排入市政雨水管网。
本设计雨水悬吊管管径为DN75，雨水立管管径为DN100。
本设计所在地为湿陷性黄土地区，室外给排水管道敷设参见《湿陷性黄土地区给排水图集》04S531。
Xining City harmonious home 13 # commercial and residentialwater supply and drainage designDesign General Information1 Design Basis(1) the construction unit of the engineering-related information and book design and conditions of the diagram;(2) the existing water supply, drainage, fire and sanitation norms and procedures."Water and Drainage design specifications" GB50015-2003;Design of tall buildings fire code GB50045-95 (2005);Automatic sprinkler system design specifications "GB50084-2001;"Architectural design of extinguisher" GB50140-2005.2 Project OverviewThe design for the high-rise building water supply and drainage engineering design, construction nature of a class of high-rise commercial and residential, with a total height of 90.09 m, a total of 31 layers. Basement tired Treasury for E; 1st floor for stores and garage; the ground 2 to 31 layers of ordinary residence. In addition, above the roof of the elevator machine room has a roof tank, outdoor floor elevation is -0.300 m.3 Design ResultsThis design has a domestic water supply system, domestic hot water system, drainage system of life, the roof drainage system, fire hydrant water supply systems, automatic sprinkler system. 3.1 The domestic water supply systemThe municipal water supply network water pressure 0.36 MPa.The design of water supply system is divided into three districts. 2 to 6 layers of low areas direct water from the municipal water supply network; 7 to 19 layers for the Central District, by the district water pump room, variable frequency pump pressurized water; 20 to 31 layers for the upper zone, by the district water pump room frequency pump pressurized water supply, residentialdistricts pump room pressure pumps are 2 sets, one with a prepared.Low maximum daily water consumption of this design is 16.8 m3/d,the maximum amount of water is 1.40m3/h,average hourly water consumption is 0.70 m3/h; highest daily water consumption of 43.68 m3/d, the maximum water volume of 3.64 m3/h, the average hourly water consumption of 182 m3/h; high maximum daily water consumption of 40.32 m3/d, the maximum water consumption is 3.36 m3/h, average hourly water consumption of 168 m3/h;The design of water distribution within the users choice of PP-R cold water pipe, in addition to kitchen and bathroom are buried Vice laying, plumbing the well water supply choice of a plastic-lined steel pipe, surface mounted plumbing wells.Residential layer of water meters installed in the wells of the plumbing, the use of the outdoor measured.3.2 The hot water systemIn this design, central heating, solar hot water systems and auxiliary heating facilities set up in the roof, this design only the design of hot water piping to the roof, set aside in the roof interface, solar roof design is completed by professional factory.3.3 Fire Hydrant SystemIndoor fire hydrant water consumption 30 L / s, and outdoor fire water to 20 L / s, the fire hydrant system to the use of temporary high-pressure water supply system. Rooftop water tanks within a set volume of 18 m3 modular stainless steel water tank one for the fire water and pressure regulator for use within the building. The outdoor set two sets of models underground fire pump SQX150-C adapter, and indoor fire hydrant connected to the water supply network. This design uses the vacuum regulator hydrant, fire hydrant box configuration bolt diameter of 65 mm fire hydrant a length of 25 m rubber lined hose to a water gun nozzle diameter of a water gun of 19 mm. The fire hydrant-pitch to 1.10 m. Each fire hydrant there shall be a button to start the fire pumps, and protection facilities. Indoor fire hydrant, valve and location of the permanent setting a fixed identity. The valve is normally open, and opening and closing flag butterfly. Fire cabinet set using ammonium phosphate dry powder fire extinguishers, configure the number of in accordance with GB50140-2005 "Architectural design of extinguisher for each fire cabinet configuration 2 3Kg (5A) Portable ammonium phosphate dry powder fire extinguishers.3.4 Automatic sprinkler systemThe design of underground layers, one layer of shops and two 31-storey residential public part are equipped with automatic sprinkler system subject to the dangerous grade Ⅰdesign shops. Usually pipe network pressure to maintain the roof fire water tank. Fire sprinklers action, water flow indicator moves to the fire center fire zone location, At this point, wet alarm valve at the pressure switch action, start the self-jet pump to the center of the fire alarm. Sprinklers are useddroop 68 degrees glass ball nozzle. Room peripheral set model flowing underground fire pump SQX150-C bonding, wet alarm valve connected to the water supply network.3.5 life of the drainage systemThe design of sewage, wastewater combined sewer, indoor ±0.000 above sewage, wastewater gravity since the inflow of outdoor sewers, basements sewage, waste water using the submersible sewage pump upgraded to outdoor sewage pipe network, sewage after septic tanks, into the municipal sewer network. Commitment to building height and each sewage, waste water riser drainage equivalent number for the pressure fluctuations in the drains as much as possible stable to prevent the destruction of pipeline water seal in the roof construction has stretched the top snorkel, and drainage stack up extension, piercing the roof and air connectivity, each riser in addition to the kitchen drainage riser and drainage plumbing the well risers are equipped with special ventilation riser, high-rise residential building main function is to maintain drain patency, special ventilation riser to each two-tier set up combined with a snorkel connected to the riser. The basement has a sump, sump, sump three wastewater collection, each catchment pit has a model 50WQ18-30-3 submersible sewage pumps two, one with a prepared.3.6 roof drainage systemThe design of the roof drainage system within the drainage system, rainwater by rain bucket to collect the import riser rain, and then discharged into the municipal storm sewer. The design of rainwater suspension tube diameter DN75, rain water riser pipe diameter DN100.This design is located in collapsible loess areas see "collapsible loess areas, outdoor drains to be laid to drain Atlas" 04S531.。