中央空调毕业设计计算说明书

摘要

本工程建筑属酒店类建筑，建筑总高度49.0m,主体高度42.6m，建筑面积14589㎡，其中包括宴会厅，雅间，客房，会议室，办公室等功能房间。本工程属舒适性空调设计，工程内容包括空调采暖，通风，防排烟。

根据房间功能及其位置分布，本工程所采用的空调系统包括集中式空调系统，半集中式空调系统，全分散式空调系统。其中一层宴会厅内区采用全空气系统；宴会厅外区、更衣室、卫生间采用风机盘管系统；其他房间采用风机盘管加新风系统；操作间，备餐间，微机房，消防控制室，音响控制室采用分体式柜机。

本工程主要设备冷热设备有，螺杆式冷水机组2台，全空气机组1台，板式换热器2台，均位于地下室机房；新风机组17台，其中四台为回风工况，13台为新风工况，均吊顶安装；柜式空调机组6台；其他为为卧式安装风机盘管机组。

本建筑位于天津，总冷负荷为939kW，总热负荷为613kW，冬夏季分别由换热器和冷水机组制热和制冷实现整个建筑的空气调节。此外，根据消防规范本工程在不满足排烟要求的楼梯间和楼梯前室设加压送风，在地下室设排烟系统和补风系统。

关键词：舒适性空调，风机盘管，加压送风,排烟

I

Abstract

This engineering construction of hotel buildings, building a total height of 49.0 m, 42.6 m, main body height building area of 14589 ㎡, including the banquet hall, room, guest rooms, meeting rooms, the function such as office room. The project of the air conditioning design, engineering content comfort including air conditioning heating, ventilation, smoke.

According to room function and its distribution, the project of the air conditioning system including the central air-conditioning system, central air-conditioning system, the half distributed air conditioning system. One layer in the banquet hall area USES all air system; The area, bathhouse, banquet hall toilet USES fan coil system; Other rooms adopt fan-coil unit plus fresh air system; The kitchen, pantry, computer room between, fire control room sound control room adopt fission style packaged.

The mainly cold and heat equipment contain screw water chillers machines, two all air unit 1, 2 sets plate heat exchanger, which all are located in the basement room ,fresh air units17 sets，four sets of which for return air condition, 13 for new fresh air condition, all condole top installation ,cabinet air conditioning unit 6 sets, ther for horizontal installation fan coil units in this project.

This building is located in tianjin, always cold load for 939 kW, total heat load for 613 kW, winter summer heat exchanger and respectively by the chiller heating and refrigeration realize the whole building of air conditioning. In addition, according to standard in this project not fire to meet the requirements of the smoke and the stairs before the room in the basement, a pressure air supply a exhaust system and fill the wind system.

Keywords comfort air-conditioning, fan coil, pressure air supply, smoke

II

目录

摘要 ........................................................................................................................................................ I Abstract .................................................................................................................................................. II 第一章 原始资料 ............................................................................................................................. - 1 -

1.1地理位置 ............................................................................................................................ - 1 - 1.2维护结构 ............................................................................................................................ - 1 - 1.3功能分区： ................................................................................................................................ - 1 - 1.4层高（ｍ）： .............................................................................................................................. - 1 - 第二章 天津室外气象资料及室内参数的确定 ............................................................................. - 1 -

2.1室外参数 ............................................................................................................................ - 1 - 2.2空调室内设计参数如表2-2 ...................................................................................................... - 2 - 第三章 空调负荷计算 ..................................................................................................................... - 2 -

3.1冬季热负荷计算................................................................................................................. - 2 - 3.3空调房间湿负荷计算 ......................................................................................................... - 9 - 第四章 空调方案的制定 ................................................................................................................. - 9 -

4.1空调系统的划分原则 ......................................................................................................... - 9 - 4.2建筑特点 ............................................................................................................................ - 9 - 4.3空调系统的分区处理 ....................................................................................................... - 10 - 4.4空调系统方案比较 ........................................................................................................... - 10 - 4.5通风方案确定................................................................................................................... - 13 - 第五章 空气处理过程的计算 ....................................................................................................... - 13 -

5.1外区风机盘管加新风系统夏季空气处理过程 ............................................................... - 13 - 5.2全空气系统的空气处理过程 ........................................................................................... - 17 - 5.3内区风机盘管加新风系统 ............................................................................................... - 19 - 5.4风机盘管系统（不加新风） ........................................................................................... - 21 - 第六章 空调设备选择计算 ........................................................................................................... - 22 -

6.1风机盘管选型................................................................................................................... - 22 - 6.2送风口选型 ...................................................................................................................... - 22 - 6.3新风机组选型................................................................................................................... - 23 - 6.4全空气机组选型............................................................................................................... - 23 - 6.5排风机选型 ...................................................................................................................... - 23 - 6.6排气扇选型 ...................................................................................................................... - 23 - 6.7回风口选型 ...................................................................................................................... - 23 - 6.8排风口选型 ...................................................................................................................... - 23 - 6.9风管选型 .......................................................................................................................... - 23 - 第七章 风机盘管的布置 ............................................................................................................... - 24 - 第八章 新风机组的布置 ............................................................................................................... - 24 - 第九章 风系统设计 ....................................................................................................................... - 24 -

9.1布置气流组织分布 ........................................................................................................... - 24 - 9.2散流器计算选择............................................................................................................... - 25 - 9.3风口布置 .......................................................................................................................... - 26 - 第十章 水力计算 ........................................................................................................................... - 27 -

10.1风系统水利计算 ............................................................................................................. - 27 -

III

10.2水管水力计算................................................................................................................. - 28 - 10.3凝结水设计..................................................................................................................... - 29 - 第十一章 设备选择 ....................................................................................................................... - 29 -

11.1制冷机组的选择 ............................................................................................................. - 29 - 11.2冷却塔的选择................................................................................................................. - 30 - 11.3循环水泵的选择 ............................................................................................................. - 32 - 11.4冷冻水补水泵的选择 ..................................................................................................... - 34 - 11.5热水泵选型..................................................................................................................... - 35 - 11.6 软化水箱的选型和计算 ................................................................................................ - 36 - 11.7 分、集水器的选择 ........................................................................................................ - 36 - 11.8 过滤器的选择................................................................................................................ - 37 - 11.9 电子除垢仪的选择 ........................................................................................................ - 38 - 11.10 板式换热器的选择 ...................................................................................................... - 38 - 11.11全自动软化水设备 ....................................................................................................... - 39 - 11.12分体式柜机................................................................................................................... - 39 - 11.13空气幕 .......................................................................................................................... - 40 - 第十二章 空调系统的防火及建筑防排烟 ................................................................................... - 40 -

12.1空调系统防火措施 ......................................................................................................... - 41 - 12.2机械排烟 ........................................................................................................................ - 44 - 第十三章 空调系统的消声、减振措施 ....................................................................................... - 45 -

13.1空调系统的消声 ............................................................................................................. - 45 - 13.2 空调系统的减振 ............................................................................................................ - 47 - 第十四章 管道的保温、防腐措施 ............................................................................................... - 47 -

14.1 管道的保温.................................................................................................................... - 47 - 14.2 管道的防腐.................................................................................................................... - 48 - 致谢 ................................................................................................................................................. - 49 - 参考文献 ......................................................................................................................................... - 49 - 附表一……………………………………………………………………………… …………..... - 49 - 附表二………………………………………………………………………………………….....- 49 - 附表三………………………………………….……………………………………… ………...- 49 - 附表四………………………………………………………………………………………….... - 49 - 附表五…………………………………………………………………………………...………. - 49 - 附表六………………………………………………………………………………………… .. .- 49 - 附表七………………..…………………………………………………………….……………..- 49 - 附表八………………………………………………………………….……………………….. .- 49 - 附表九…………………………………………………………………………………………… - 49 - 附表十………………………………………………………………………………………….... - 49 - 附表十一…………………………………………………………………………………...…….. - 49 - 附表十二………………………………………………………...……………………………..….- 49 -

IV

天津市旅游饭店空调工程计算说明书

第一章 原始资料 1.1地理位置

地理位置：天津

台站位置: 北纬39o06′；海拔3.3m。 1.2维护结构 1.2.1墙体结构

（1）外墙：壁厚200mm，保温层为加气混凝土厚度250mm，Ⅰ型墙体，外20 mm水泥砂

浆，内20 mm水泥砂浆抹面，内粉刷。

（2）内墙：硅酸盐砖墙壁厚240mm，两侧为20 mm水泥砂浆抹面，内粉刷。 1.2.2屋面构造：

由下而上为；1、内粉刷；2、现浇钢筋混凝土楼板厚70 mm；3、隔气层；4、聚苯板（密度为28Kg/m3）厚150 mm；5、水泥砂浆找平层厚20 mm；6、卷材防水层7、砾砂外表层5mm。

1.2.3楼板：K=2.56 W/m2?℃ 1.2.4门窗

（1）外窗：塑钢普通双层玻璃窗，构造修正参照双层3 mm普通玻璃；夏季内遮阳为活

动铝百叶窗帘；无外遮阳； （2）内窗：塑钢普通双层玻璃窗； （3）外门：不锈钢普通单玻厚60 mm； （4）内门：木门。 1.3功能分区：

地上主体十二层。一至三层为餐厅；四到六层为客房，七层至十二层为办公室。地下为机房及物资库。 1.4层高（ｍ）：

首层层高为4.5m、二、三层4.2m，地下室4.5m，四、五层3.3m，六层3.4m，七至十二层3.3m

第二章 天津室外气象资料及室内参数的确定 2.1室外参数

查《空调工程》附表4得天津市夏季室外气象参数如表2-1 表2-1

夏季空调计算干球温度 夏季空调计算日平均温度 33.9℃ 29.3℃ - 1 -

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