给排水工程说明书.doc

摘要
工程概况:
本设计为位于长春的福阳苑住宅小区七号楼,该建筑共5层。,。整楼分2个单元,每单元2户。室外市政给水管位于整栋建筑的西侧,,,市政排水管也为与建筑西侧,。
本设计的设计范围包括:1)建筑给水工程;2)建筑排水工程
关键词:
住宅、给水、排水、设计
目录
第1章原始资料··································1
第2章给水管网的水力计算······················2
给水设计·····························2
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第3章排水管网的水力计算······················8
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排水附件的选择····························13
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要参考文献·····························14
第1章原始资料
1、建筑物修建地区:长春
2、气象资料:长春地区冻土深度-
3、土建资料:建筑平面图(首层平面图、标准层平面图)、剖面图
4、。
第2章给水管网的水力计算
给水设计

本设计是一个5层单元式的住宅楼,根据设计资料,室外管网做提供的水压为
,相当于35m的水柱高,初步确定给水系统所需压力:
+2+×5=<35m
所以室外管网水压在建筑的需要整天均能满足该六层,.因此该设计选得是依靠室外管网压力直接给水方式,。
建筑给水系统组成包括:。
本建筑给水系统采用的是各单元独立立管的给水方式,水表统一放在屋外独立的水箱中,这样便于管理。查水表是不影响住户的正常生活及独立维护,维护住户的隐私安全。
给水管材的选择
。,单管长,接头少,且重量比铸铁管轻,,经久耐用,价格低。近年来,给水所料管的开发在我国取得很大的进展,有硬聚***乙烯管,聚乙烯管,聚丙烯管,聚丁烯管和钢塑复合管等。所料管具有耐化学腐蚀性能强,水流阻力小,重量轻,运输安装方便等优点,使用所料管还可节省管材,节省能源。钢塑复合管兼有有钢管和所料馆的优点。根据用户水压要求,本设计选用UPVC塑料关进行给水。
生活用水量
给水用水量定额与时变化系数,由课程设计原始资料可知,此五层单元式住宅的卫生器具设置有:大便器、洗脸盆、洗涤盆、洗衣机、沐浴设备、故其属于普通住宅Ⅱ,查资料的:
用水定额及小时变化系数:
用水定额:200L/(人·d),小时变化系数取:
用水单位数:
由图得,。
最高日用水量及最大小时用水量:
最高日用水量: Qd = m·qd