公共浴室建筑给排水课程设计

公共浴室给水排水课程设计计算说明书2目录原始资料：······································································································3设计内容及相关计算说明···················································································3第一部分：热水系统设计与计算说明······························································3一、资料分析说明与工程概述·································································3二、热水系统相关形式的取定·································································4三、热水系统的计算·············································································4四、热水管网的水力计算·······································································5五、热水管网的其它计算说明·································································7第二部分：给水系统设计与计算说明······························································7一、给水系统工程概述······································································7二、给水管布置及水力计算································································8第三部分：排水系统设计与计算说明······························································9一、排水系统工程概述······································································9二、排水管布置及水力计算·······························································10第四部分：设计施工说明············································································12第五部分：参考文献··················································································123原始资料：1.青岛地区某单位公共浴室，每周二、四、六下午4：00~8：00开放。2.浴室内淋浴器、洗面盆、浴盆，需热水供应。3.离浴室西面50M处有锅炉房，能供应浴室使用的蒸汽管道架空送到浴室（离地面4M），4至浴室引入处见总平面图所示，蒸汽表压为0.7MPa。4.浴室隔邻有一公共厕所，使用人数估计每天约200人。5.室外原有给水管DN150，管中心地面下1.0m，冻土深度0.5m，最低水压能保证0.16MPa，冷水计算温度为4℃。6.室外雨、污水管DN300，管底埋深分别为2.5m及2.0m。7.其他设计资料见所提供图纸。设计内容及相关计算说明第一部分：热水系统设计与计算说明一、资料分析说明与工程概述1）.本工程淋浴器及浴盆给水为单管恒温供水，给水由屋顶热水箱提供，洗脸盆给水为双管供水，给水由屋顶冷、热水箱提供。2）.洗浴给水系统热源由锅炉房提供。3）.淋浴器和浴盆设计用水温度40度，洗手盆设计用水温度35度。4）.详细说明如下：该浴室为某单位公共浴室，面对内部职工定时开放。浴室内用水器具有淋浴器、浴盆和洗脸盆。查得卫生器具相关参数如下表：卫生器具用水定额表表一给水配件名称额定流量(L/s)当量连接管公称直径(mm)最低工作压力(Mpa)用水量(L/h)使用水温（°C）同时使用百分数（%）淋浴器（单阀水嘴）0.150.75150.050～0.10048040100浴盆（单阀水嘴）0.201.00150.05025040100洗脸盆（混合水嘴）0.15（0.10）0.75(0.50)150.05060351004二、热水系统相关形式的取定（一）淋浴喷头布置1）．考虑到该公共浴室每周开放三次，每次开放四小时，用热水较为集中。为增加负荷能力并减少等待洗浴间，采用通间布置。2）．喷头布置简图：见下页（二）淋浴管道形式1）．淋浴器和浴盆采用单管恒温供水，洗浴用水温度不可调节（均为40°C）。管道布置简单，节省管材，且比双管供水节水20%-25%。用水由屋顶热水箱供应。因淋浴器个数较多，为保证水压稳定可靠，淋浴器供水管设置为环状。2）．洗脸盆采用双管供水。温度可在35°C左右调节，以满足不同人员洗脸、手、头要求。洗脸盆用水由屋顶冷、热水箱供应。（三）加热方式和加热设备种类1）．有锅炉房供应蒸汽，为保证出水水质，采用蒸汽间接加热。2)．加热器选用容积式。容积式加热器水头损失较小，16m市政供水能直接供水；可储存部分热水，热媒负荷均匀，出水温度较稳定，调温控制方便。三、热水系统的计算（一）热水量取计算用的加热器出水温度为60°C，混合水水温为40°C，青岛地区冷水温度为4°C。由公式bnqKQhrr0和表（一）计算，得下表：热水量计算表二卫生器具ｑh(L/h）ｎ0ＫrＱr(L/h）ｂ(%)淋浴器480460.6414131.2100.0浴盆25030.64480100.0洗脸盆60100.55330100.0其中%100-lrlhhrrttttQQKhbnqKQhrr/14.14mL/h14138.2387.5482.113268.630总热水量（二）耗热量J/h3259455.7k98324.02.14138)460(187.4)-(rrlrhQttCQ（三）蒸汽耗量蒸汽表压为0.5Mpa，绝对压力为0.5+0.1=0.6Mpa。查表得γh=2090kJ/kg；ts=158.1°C。蒸汽耗量1793.5kg/h20903259455.715.1)20.1.1.1(hhQG5（四）热交换面积容积式水加热器C126.12460-158.12-2-2tzcszcmzmcjttttttt热交换面积215.6m126.126007.03259455.71.1CFjzrjrtQ其中：蒸汽压0.6Mpa0.07Mpa，用钢盘管，Ｋ取2600；取0.7；rC取1.1。（五）贮水器容积计算（经验法）310.43m10425.9L187.4)460(3259455.775.0)(TQCttVlrh冷水从下部进入，热水从上部送出，计算容积附加20%后3m12.5120%)(110.43V（六）加热设备的选择根据V=12.51m3，Fjr=15.6m2，由《给排水标准图集》选出卧式双盘管10号加器。加热面积2m40.02F，容积315mV。型号ΦmmHmmLmm干重kg102200262258839392四、热水管网的水力计算（一）淋浴室配水管布置1）．配水支管配水管不变径。2）．为满足安装要求，取：横干管与墙壁净距100mm，与梁、柱净距50mm；立管中心距柱表面50；DN50的立管与墙面净距35mm，DN70立管与墙面净距50mm。3）.淋浴室配水管选用钢管，通过沟槽式卡箍连接。4）．根据已选择的管道形式和淋浴器布置简图。6（二）淋浴室配水管网水力计算浴室配水配水管网水力计算表表三编号淋浴器数量当量qDNvimm/mLhymH2O0-110.750.15500.080.420.90.000381-221.500.30500.151.440.90.00132-332.250.45500.233.010.90.00273-443.000.60500.315.104.50.00464-543.000.60700.181.395.40.00755-675.251.05700.323.784.00.01556-72216.503.30800.7014.375.70.08167-84433.006.601000.7912.681.60.0203Σ1923.90.134注：0点为最不利点。局部水头损失按沿程损失25%计算1）．淋浴器服务水头为5m。系统需满足压力为：5+0.134（1+25%）=5.167m2）．热水箱出水管标高+6.50米，淋浴器阀门标高为+1.1-0.15=1.05m，所提供静压力为6.5-1.05=5.45m5.167m。满足水压要求。（三）洗脸盆和浴盆热水管网布置1）．浴盆为单管供水，直接由热水箱供40°C热水。因洗脸盆用水温度为35°C，洗脸盆设双管供水，可冷热水调节，冷水箱由屋顶冷水箱供给。2）.因洗脸盆使用时，一般先将水放入容器内，因此将浴盆接入洗脸盆供水管网产生的水压波动小于接入淋浴室供水管网产生的波动。3）．配水管选用塑料PP-R管，安装方便，不易结垢。通过热熔连接。4）．洗脸盆和浴盆热水管网布置系统简图（四）洗脸盆和浴盆配水管网水力计算洗脸盆和浴盆配水管网水力计算表表四管段编号当量qDNvimm/mLhymH2O0-10.50.10250.3660.70.00461-21.50.30320.6411.31.00.01092-320.40400.8518.80.70.00623-430.60500.6913.71.00.00514-53.50.70500.8118.10.70.00485-64.50.90501.0428.21.50.01636-751.00500.8610.60.80.01077-85.51.10700.9410.60.80.00348-961.20700.1310.60.80.00409-106.51.30701.1221.70.80.004610-1171.40701.2021.76.20.0409Σ15.00.1110注：0点为最不利点。局部水头损失按沿程损失25%计算1）．洗脸盆服务水头为5m。系统需满足压力为：5+0.111（1+25%）=5.139m2）．热水箱出水管标高+6.50米，淋浴器阀门标高为+1.1-0.15=1.05m，所提供静压力为6.5-1.05=5.45m5.139m。满足水压要求。7五、热水管网的其它计算说明（一）热水箱容积和规格的确定1）．混合水箱容积该水箱进热水温度为60°C，出热水温度为40°C，进冷水温度为4°C。按照75%（45min）的设计热水量计算，得363.171000/)4350010753250(75.0mV，取18m3。热水箱长宽高取3m3m2.5m。简图如下：热水箱最高水位：5.6+0.8+2.5-0.1-0.15-0.152.5=8.275热水箱最高、最低水位之差=8.275-6.50=1.775m331.775=16.018，不满足要求。所以选择热水箱长宽高取3m3m3m。热水箱最高、最低水位之差=8.775-6.50=2.275m332.275=20.02518。满足条件。选用碳素钢板材质，焊接而成，并做保温防护2）．热水箱相关高程为保证不窜水，保证用水效果，冷热水箱最高最低标高应大致相等。取热水箱架