文档介绍：民用建筑给水排水设计
摘要
本设计是某二十层民用住宅楼的建筑给排水设计，主要包括给水系统、排水系统消防系统、屋面雨水系统四个部分。
给水系统采用分区供水，一到四层为低区，由市政管网直接供水。五层到二十层为高区，采用变频泵加压的供水方式，由建筑物外的储水池供给；排水系统采用的是污、废合流制，底层单独排水，厨房排水立管仅设伸顶通气管，卫生间设专用排气管；消防系统设计成消火栓灭火系统，火灾初期10min的水由消防水箱供给，正常供水由消防水泵从贮水池内抽取；雨水采用的是内排水系统，雨水直接排向市政污水管网。给水管和排水管分别采用给水钢管和PVC塑料管，消防系统采用镀锌钢管。
设计过程进行了各系统方案的确定、平面布置和计算,以及各种设备的选型算,最后用CAD绘制了各个系统的平面施工图和系统轴侧图。
关键词：高层建筑；建筑给排水；给水管材
Abstract
This design is a 18 layers buildings of the public residence building to , completing the design of the water supply system and draining the system, fire fight system, the hot water system and the system of the roof rain water.
The water supply system adoption cent area supply water. 1-4 low areas of the layers is taken care of the direct water supply by the municipal pipe net. The seventh layer to the 18th layer is high area, adoption north bound descend to of water supply method, pump to supply water to a water tank of the roof from the water supply of the underground garage, then be taken care of the net water supply toward high area by a water tank; Drain the system adoption is a dirty water, the waste water confluence system, the first floor drains alone, draining to sign the tube to establish to stretch the crest to ventilate the tube only, the dirty water was handle by septic tank again rear row to municipal soil pipe net; The fire fight system design becomes to eliminate the fire to bolt to extinguish fire the system, a fire water of the early 10 mins is supply by the fire fight water tank, normal the water supply be pumped by the fire fight Pump from the Saving pond ;The hot water system divides the area circumstance in accordance with the cold system of water, the cold water passes to give or get an electric shock after the heating apparatus concentration heat, again from promote the pump to provide to go together with the pipe line net, The hot water adopt is the closing type machine half circulatory system; The rain water adoption is inside drain the system, rain wa