某星级宾馆建筑给排水毕业设计
目录
一、 设计说明书 ······························································································ 1
（一）给水工程 ·························································································· 1
1﹒设计资料 ····························································································· 1 2﹒设计原则 ····························································································· 1 3﹒方案比较 ····························································································· 1
方案一：无分区无水箱供水方式 ·································································· 1 方案二：设水泵水箱给水方式 ····································································· 1 方案三：变频泵调速供水 ··········································································· 2
（二）排水工程 ·························································································· 2
1﹒方案选择 ····························································································· 3 2﹒排水系统的组成 ··················································································· 3 3﹒系统流程图 ·························································································· 3 4﹒屋面雨水排水系统的选择 ····································································· 3
（三）消防给水工程 ·················································································· 3
1﹒室内消火栓系统 ··················································································· 3
（1）消防水池 ··················································································· 4 （2）消防水泵和消防水泵房 ······························································ 5 （3）消防水箱 ··················································································· 7 （4）消防水泵接合器 ········································································· 7 （5）减压阀及减压孔板 ····································································· 8 2﹒自动喷水灭火系统················································································ 11
（1）闭式喷头 ··················································································· 12 （2）报警阀门 ··················································································· 16 （3）水流指示器················································································ 17 （4）水力警铃 ··················································································· 18 （5）延迟器 ······················································································ 18 （6）末端试水装置 ············································································ 19 （7）自动排气阀················································································ 19
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（四）室内热水工程 ·················································································· 21
1﹒系统选择 ····························································································· 21 2﹒热水供应方式 ······················································································ 21 3﹒系统组成 ····························································································· 21 4﹒主要设备 ····························································································· 21 5﹒热水供应系统附件················································································ 21
二、设计计算书 ································································································ 23
（一）给水系统 ·························································································· 23
1﹒给水用水定额及变化系数 ····································································· 23 2﹒最高日用水量计算················································································ 23 3﹒最高日最大时用水量计算 ····································································· 23 4﹒设计秒流量计算 ··················································································· 24 5﹒高位水箱容积计算················································································ 25 6﹒贮水池计算 ·························································································· 27 7﹒生活给水系统水力计算 ········································································· 28
（二）排水系统 ·························································································· 44
1﹒排水定额 ····························································································· 44 2﹒污水、废水系统水力计算 ····································································· 44 3﹒雨水排水系统水力计算 ········································································· 60
（三）消防系统 ·························································································· 62
1﹒消火栓系统水力计算 ············································································ 62 2﹒自动喷水灭火系统水力计算 ·································································· 67
（四）室内热水系统 ·················································································· 72
1﹒热水用量计算 ······················································································ 72 2﹒耗热量计算 ·························································································· 72 3﹒热媒耗热量计算 ··················································································· 72 4﹒热水贮存器容积计算 ············································································ 73 5﹒热交换设备计算 ··················································································· 73 6﹒机械循环水力计算················································································ 74
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一 设计说明书
（一）给水工程
1﹒设计资料
根据设计资料，本建筑为某城市新建一座国际商贸城四星级宾馆,地下一层，地上十六层，建筑高度约57.90m，建筑面积约26810m2，。室外给水管网供水水压为0.3Mpa。每层高3.6米。
2﹒设计原则
a、保障用水的安全可靠；
b、设备及管道的布置尽量简洁、集中，以便于检修； c、管道及设备的布置尽量便于装修，使宾馆美观舒适。
3﹒方案比选
方案一：无分区无水箱的供水方式
本方案采用多台水泵并联，根据水泵出水量或水压调节水泵运行台数。 方案示意图如下：
图1.1
优点：供水较可靠，设备布置较集中，便于维护和管理，不占用建筑上层使用面积。 缺点：水泵型号和数量比较多，投资较大，水泵控制调节比较麻烦，管道布置较复杂。 方案二：设水泵和水箱的给水方式
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在地下室设置水池，由水泵将水池中水供至屋顶水箱，水池水源来自市政管网供水。其方案示意图如下： 、
图1.2
优点：水泵能及时向水箱供水，可缩小水箱容积，又因水箱有调节作用，水泵出水量稳定，能保持在高效区运行。
缺点：可能造成二次污染，增加建筑荷载。 方案三:变频泵调速供水方式
优点：不设置屋顶水箱，减小占地面积与建筑荷重，无二次污染供水水质好，设备便于自动控制，管理简便，控制精度高运行可靠；水泵可以软启动，降低了对电网供电量的需求，减少了水泵机组的机械冲击和磨损及水泵切换时的震荡现象因而延长了水泵的寿命；设备一般为一体化装置，体积小，占地少。
缺点：不能满足消防贮水量，存在小流量和零流量的供水问题；一次性投入价格较高。
考虑到宾馆对环境卫生的要求，本次设计中采用变频泵供水方式供水。考虑到尽量利用市政管网水压力，并且方便管理，节省电耗等因素，将宾馆给水分为两个区，低区为1—5层，由市政管网供水，高区为6—16层，由高位水箱供水。 4、室内给水系统组成
整个系统包括引如管、水表节点、给水管网和附件等，此外，还包括高区所需的地
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下贮水池、加压泵、屋顶水箱以及相配套的设备等。
（二）排水工程 1﹒方案选择
本建筑属高层建筑，卫生器具较多，排水量较大。为防止水封破坏，排水立管采用伸顶通气。
本建筑属四星级宾馆，对卫生标准要求较高，采用生活污水与生活废水分流的排水系统。
生活污水直接排至城市排水管网。地下室排水经污水泵提升后排至室外。
2﹒排水系统的组成
排水系统包括以下几部分：
（1）卫生器具：室内排水系统的起点
（2）横支管：将卫生器具排出的污水引入立管 （3）立管：接纳横支管污水并将其排到干管或排出户外
（4）横干管：接纳室内数根排水立管的污水，并将其引入排出管的管段 （5）通气管：排出有害气体，平衡压力，防止水封破坏 （6）排出管：接纳横干管的污水，将其排出室外 （7）清通设备：疏通排水管 （8）抽升设备和局部处理构筑物
3﹒系统流程图
卫生 器具 横支管 立管 干管 化粪池 市政排水管网 图1.3
4﹒屋面雨水排水系统的选型
根据该建筑物的性质和雨水排水的要求，本设计采用普通内排水系统，内排水是指屋面设雨水斗，建筑物内部有雨水管道的雨水排水系统。因为建筑是16层高层建筑，所以建筑立面要求较高，采用雨水室内排水美观。
（三）消防给水工程
1﹒室内消火栓系统
消火栓的布置必须保证两股水柱能同时达到室内的任何一个部位，每股水柱的流量
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