2022年大学方案说明secret.docx

精品学习资源个人资料整理 仅限学习使用毕业设计说明书题 目： 北京市某综合办公楼地源热泵空调设计院 <部）： 城市建设学院专 业： 建筑环境与设备工程班 级： 4-4 班姓 名： XXX学 号： 指导老师： 完成日期：欢迎下载精品学习资源个人资料整理 仅限学习使用目录摘要·····································································Abstract····································································一、设计依据1.1 设计任务书······························································11.2 建筑平面剖面图··························································11.3 国家规范标准····························································11.4 设计参数································································11.5 围护结构性能····························································11.6 设计范畴································································11.7 设计原就································································2欢迎下载精品学习资源二、负荷运算2.1 空调冷负荷的运算··························································32.2 空调热负荷的运算·························································142.3 空调湿负荷的运算·························································20三、系统挑选3.1 冷热源挑选······························································183.2 空调系统的挑选··························································223.3 空调系统方案的确定······················································ 24四、新风负荷的运算4.1 新风量的确定·····························································254.2 夏季空调新风冷负荷的运算················································· 264.3 冬季空调新风冷负荷的运算······································欢迎下载精品学习资源··········· 26五、空气处理设备的挑选5.1 风机盘管的挑选··························································285.2 新风机组的挑选··························································31六、气流组织6.1 气流组织分布·····························································336.2 风口布置·································································346.3 风口选择运算····························································34七、风系统水力运算7.1 风管水力计算方法·························································357.2 风管水力计算过程························································367.3 风管的布置及附件····································································40欢迎下载精品学习资源八、空调水系统设计及水利运算8.1 空调水系统的设计·························································428.2 冷水系统的水力运算·······················································428.3 冷凝水管道设计···························································518.2水系统安装要求···························································52九、制冷机房设备的挑选运算9.1 水源热泵机组选型运算····················································· 539.2 地埋管设计运算··························································549.3 循环水泵的挑选···························································559.4 集分水器的设计运算·······················································569.5 水处理设备的选择运算···················································· 57欢迎下载精品学习资源9.6 阀门安装································································57十、管道保温与防腐10.1 管道保温································································5810.2 管道防腐································································59十一、消声减振设计11.1 消声设计································································6011.2 减振设计································································60谢辞·····································································62参考文献···································································63摘 要随着社会的进展以及人民生活水平的提高，越来越多的人在使用空调技术，以营造健欢迎下载精品学习资源康舒服的生活环境；本设计为北京市某综合办公楼地源热泵空调设计，共六层，建筑总面积10000，空调面积约 6000，全楼冷负荷为 307 千瓦，依据房间功能，全楼采纳地源热泵系统进行集中供应空调方式；依据各不同功能房间，办公室、会议室、宿舍等，将该集中系统设为风机盘管加独立新风系统，新风机组从室外引入新风处理到室内空气焓值，风机盘管承担室内全部冷负荷及部分的新风湿负荷；风机盘管加独立新风系统有百叶风口下送和侧送；水系统采纳闭式双管同程式，冷水泵两台，一用一备；冷却水泵选两台，一用一备；卫生间通风统一由排风扇接出，在末端安装止回阀；在冷负荷运算的基础上完成主机和风机盘管的选型，并通过风量、水量的运算确定风管路和水管路的规格，并校核最不利环路的阻力和压头用以确定新风机和水泵；依据相关的空调设计手册所供应的参数，进一步完成新风机组、水泵、热水机组等的选型，从而将其反应在图纸上，最终完成整个空调系统设计；关键词： 风机盘管加独立新风系统；负荷；管路设计；制冷机组AbstractWith the development of society and the increasing of livingstandard, more and more people are using the air-condition technology, which built a healthy and comfort habitation for欢迎下载精品学习资源people.This design is about the central air conditioner engineering of an office building that locates in Beijing. There are 6 floors. The gross floor area is about 10000 m2, and the air conditioner area2is about 6000 m . The cold duty is 307 kW.We choose ground sourse heat pump for air-conditionof this building.According to different functions, there are rooms such as offices, meeting room, dormitory ect. The system adopts the PAU+FCU system. FCU system deals with the fresh air. PAU system carries on the whole cold duty and part wet duty. PAU+FCU systems can send air from the side and the upside； it uses the circular air diffuser to supply air. There are two water-coolingpumps； one can be used when heating. In summer, one of the two is for using and another forpreparing； in winter, one for using and one for preparing. The system in washroom can ventilate by itself.The water system is divided into four parts: the first part is the underground room, the second part is the equipment room, the third part is the first and second floor, the fourth part is the standard floors that is the third floor and above.Keywords: PAU+FCU systems； load； pipeline design； refrigeration machine欢迎下载精品学习资源个人资料整理 仅限学习使用一、设计依据1.1 设计任务书；1.2 建筑平面图和剖面图 ；1.3 国家主要规范和行业标准：、采暖通风与空气调剂设计规范GB500192003；、高层民用建筑设计防火规范GB50045 95；、公共建筑节能设计标准GB501892005；、地源热泵系统工程技术规范GB50366 2005；、建筑设计防火规范 GB50016 2006；1.4 北京市设计运算参数：夏季：空调计算干球温度33.6 空调计算湿球温度26.3 空调计算日平均温度29.1 通风计算干球温度30.0 空调计算相对湿度50%大平气均压风力速99.86Kpa2.2m/s冬季：空调计算干球温度- 12通风计算干球温度- 5空调运算相对湿度37%大气压力102.57Kpa平均风速2.7m/s外窗外墙屋面地面楼板2.61.110.660.661.5 建筑围护结构的热工性能围护结构名称传热系数 <w/m ·）表 1.1 建筑围护结构的热工性能1.6 设计范畴：欢迎下载精品学习资源个人资料整理 仅限学习使用本设计为北京市某综合办公楼地源热泵空调设计，建筑面积约10000 m，建筑高度约22M；各层主要房间均为办公室，另兼有会议室、休息室及餐厅等；其中一至五层层高为3.5M，六层层高为 4M；1.7 设计原就：满意国家及行业有关规范、规定的要求，利用国内外先进的空调技术和设备，创建健康舒服的室内空气品质及环境；欢迎下载精品学习资源个人资料整理 仅限学习使用二、负荷运算2.1 空调冷负荷的运算本设计采纳冷负荷系数法运算夏季空调冷负荷，通过冷负荷温度与冷负荷系数直接从各种扰量值求得各分项逐时冷负荷；现分项说明如下：2.1.1 外墙冷负荷与屋面冷负荷：在日射和室内气温综合作用下，外墙和屋面瞬变传热引起的空调冷负荷，可按下式运算：CLF×kt-t>其中： CL外墙和屋面瞬变传热引起的逐时冷负荷，w； F外墙和屋面的面积， m ；k外墙和屋面的传热系数， w/m ·；t室内设计温度，；t外墙和屋面的冷负荷运算温度的逐时值，；查得北京市 7：0019： 00 各时刻各朝向的 t值如下表所示 <240 加气混凝土砌块墙为 型） ：朝时刻向78910111213141516171819S35.335.235.134.934.834.634.434.234.033.933.833.833.9W37.937.937.837.737.537.337.136.936.636.436.236.136.0N32.632.632.532.532.432.232.132.031.931.831.831.831.8E37.437.337.136.836.636.436.236.136.136.236.336.436.6表 2.1 北京市各时刻各朝向的t 值运算过程中外墙的传热系数为1.1 w/m·，屋面传热系数为0.66w/m ·；2.1.2 玻璃窗瞬变传热引起的冷负荷：此建筑物全部塑钢窗及玻璃幕墙传热系数为k2.6 w/m·，瞬变引起的冷负荷运算公式为 CL F× kt-t>，各符号意义同上式；由资料查得窗玻璃的逐时冷负荷运算温 度 t 值列于下表：欢迎下载精品学习资源个人资料整理 仅限学习使用时78910111213141516171819刻t26.026.927.929.029.930.831.531.932.232.232.031.630.8表 2.2 玻璃的逐时冷负荷运算温度t 值2.1.3 透过玻璃窗进入的日射得热引起的冷负荷： 由资料查得本建筑中全部玻璃窗的有效面积系数值为Ca=0.75, 故运算公式为CL=F·Ca·Cz·Djmax· Ccl其中： CL透过玻璃窗进入室内的日射得热引起的冷负荷，w；F玻璃窗面积， m ；Ca玻璃窗的有效面积系数；Cz 窗玻璃的综合遮挡系数， Ca Cz0.387 ； Djmax日射得热因数的最大值，w/m ；Ccl冷负荷系数逐时值；朝分项时刻向78910111213141516171819南Ccl0.170.210.280.390.490.540.650.600.420.360.320.270.23Djmax302西Ccl0.140.150.160.170.170.180.250.370.470.520.620.550.24Djmax599北Ccl0.420.430.490.560.610.640.660.660.630.590.640.640.38Djmax114表 2.3 各时刻各朝向 Djmax 和 Ccl 的值2.1.4 照明散热引起的冷负荷： 照明散热量属于稳态得热，一般情形下这一得热量是不随时间变化的；建筑物内的照明使用荧光灯，冷负荷运算公式为：CL=860n n NCcl其中： Cl 照明散热引起的冷负荷， w； N照明灯具所需功率， kw；n 镇流器消耗功率系数，取 1.0 ；欢迎下载精品学习资源个人资料整理 仅限学习使用n 灯罩隔热系数，取 0.6 ；Ccl照明散热冷负荷系数，依据不同的空调设备运行时间和开灯时间及开灯后的小时数，空调供冷系统仅在有人时才运行，取Ccl 1.0 ；由节能标准得照明功率密度值为11 w/m；其中 N房间面积×照明功率密度值 /1000 ；2.1.5 人员散热引起的冷负荷：此建筑物为综合办公楼，全楼共有1084 人工作，大多属极轻劳动类型，室内设计温度为 25 摄氏度，在此情形下，查资料得每人散发的显热为65，潜热为 69，全热为134；由于室内工作人员既包括男子也包括女子，故取群集系数为0.96 ；人体显热散热引起的冷负荷运算式为：CL1=Qs n C其中： Qs来自室内全部人体的显热得热，查为65* 人数； n 群集系数， 0.96 ；C人体显热散热冷负荷系数，这一系数取决于人员在室内停留的时间及进出的时间值，逐时列于下表： 0.550.640.700.750.790.810.840.860.880.890.910.92时刻C表 2.4 各时刻 Ccl 的值人体潜热散热引起的冷负荷运算式为CL2=Q n其中： Q 来自室内全部人体的潜热得热，为69* 人数；就总的冷负荷为 CL=CL1+CL2=×n 65× 0.96 ×C+n×69×0.96 w> ；各个房间的空调冷负荷及汇总见以下各表<室内设计温度为 25）： 101 房间：北外墙面积 F=12.48 m，传热系数 k=1.1 w/m·，室内温度为 25，北京市北向的逐时值 t值如下：表 2.5 北京市北向的逐时值t 值时789101112131415161718刻t32632632532 532432 232132 031931831831831欢迎下载精品学习资源由 CL F× kt-t>可得北外墙逐时冷负荷如下：表 2.6 北外墙逐时冷负荷时刻78910111213141516171819CL10510510410410310098979694949494北外窗面积 F=4.32 m，传热系数 k=2.6 w/m·，室内温度为 25，北京市玻璃窗冷负荷运算温度 t如下：表 2.7 北京市玻璃窗冷负荷运算温度t789101112131415161718192626.927.929.029.930.831.531.932.232.232.031.630.8时刻t由公式 CLF×kt-t>可得北外窗逐时冷负荷如下 :表 2.8 北外窗逐时冷负荷时刻78910111213141516171819CL10182838475562666969676355北 外 窗 透 过窗 玻璃进 入的 日射 得热 引起的 冷负 荷计 算公 式为CL=F·Ca·Cz·Djmax·Ccl ，其中北京市北向窗玻璃的冷负荷系数逐时值Ccl 如下所示：表 2.9 北向窗玻璃的冷负荷系数逐时值Ccl时刻78910111213141516171819Ccl0.420.430.490.560.610.640.660.660.630.590.640.640.38北向 Djmax=114 w/m ，Ca·Cz=0.387，运算可得北外窗透过窗玻璃进入的日射得热引起的逐时冷负荷为：时刻78910111213141516171819CL80829310711612212612612011212212272101 房间的面积为 28.8 m，此房间为办公室，查资料得一般办公室中每人空间为4 m /人，故此房间中的人员散热量按7 人运算；显热运算公式CL1=Qs n C，其中 Qs=人数*65w，群集系数 n 取 0.96 ，人体显热散热冷负荷逐时系数如下：时刻78910111213141516171819Ccl00.550.640.70.750.790.810.840.860.880.890.910.92运算得人员显热散热引起的冷负荷如下表：时刻78910111213141516171819CL0225262287307324332344353361365373377人体潜热得热为稳态得热，公式CL=Q n，其中 CL=人数*69w，群集系数 n =0.96 ，运算得 CL=1310w；101 房间照明散热引起的冷负荷由下式运算：CL=860n n NCcl=860× 1× 0.6 ×11×28.8 ×1/100=163 w101 房间的各项冷负荷及汇总见下页表所示：房分时 刻间项78910111213141516171819CL欢迎下载精品学习资源北10510510410410310098979694949494外墙北10182838475562666969676355外80829310711612212612612011212212272窗人显0225262287307324332344353361365373377热人1310131013101310131013101310131013101310131013101310潜热照163163163163163163163163163163163163163明汇总1668190319602021204620742091210621112109212121252071101办公室注：外窗的冷负荷中第一行为玻璃窗瞬变引起的冷负荷，其次行为透过窗玻璃进入的日射得热引起的冷负荷；房分项时刻间CL7891011121314151623823623322922622221721320820628728428027326826325925725725914274257708393991031031291592122953714094924543182730483562615659694712738755773280828082808280828082808280828082808280834534534534534534534534534534538214342448246224747482449264914479447672382362332292262222172132082061201201191181171151131111081061761761731731711661641621591571427425770839399103103129159212295371409492454318273142742577083939910310312012314016017418318918918016909981162127113621434147015251561159858035803580358035803580358035803580358037047047047047047047047047047047318837386308867906892029338935992479222102 南外墙东外墙南外窗人显热人潜热照明汇总103 南外墙西外墙北外墙南外窗北外窗人显热人潜热照明 汇总欢迎下载精品学习资源104南外窗143141140137136133130127125123北外墙176176173173171166164162159157南外窗91173264364445527591627654654837103413781920241226583200295420681772北外窗1427425770839399103103人显热0258300328351370379394403412人潜热1498149814981498149814981498149814981498照明903903903903903903903903903903汇总3662421046985380598663386958676459135622105北外墙88888787868382818079北外窗713212935424749525260617080879194949084人显热0323741444647495052人潜热187187187187187187187187187187照明133133133133133133133133133133汇总475514535557572582590593592587106南外墙689682675662655642629615602595南外窗591121722372903433844084264264725837781083136115001805166611661000人显热0548637697747786806836856876人潜热3182318231823182318231823182318231823182照明1983198319831983198319831983198319831983汇总6385709074277844821884368789869082158062107南外墙36353534343333323131南外窗23446793114135151161168168209258345480603665800738517443人显热064758288939598101103人潜热374374374374374374374374374374照明111111111111111111111111111111汇总75388610071174132414111564151413021230108南外墙36353534343333323131南外窗23446793114135151161168168209258345480603665800738517443人显热064758288939598101103人潜热374374374374374374374374374374照明11111111