毕业设计空调设计说明书

毕业设计(论文)

题 目 西安市银河大厦空调系统设计 学院名称 城市建设学院

指导教师 职 称 班 级 学 号 学生姓名

年6月9日 摘 要

本工程为西安市银河大厦通风空调施工图设计。该建筑地下一层，地上十七层，总建筑面积为17373m2，其中空调面积为10700m2。地下室为设备用房，主楼1 ~9层为办公用房，10层为空中花园，11~17层为居民住宅；裙楼共三层，均为证券公司营业用房。本空调设计范围主要是主楼1~9层办公区和裙房1~3层证券营业区。

本工程夏季空调总冷负荷为1417kw，选用一台离心式冷水机组作为空调冷源（单机制冷量1400kw）。冬季总热负荷为1134kw，由市政热网提供热源，通过一台换热器换热用于冬季空调供暖（换热量为1163kw）。空调机房设在本楼地下一层设备房内。

本工程空调系统形式：主楼1~9层和裙楼3层为风机盘管加新风系统，裙楼2层为吊挂机组加新风，裙楼1层为全空气系统，采用吊挂式空气处理机组。

空调水系统采用两管制，分为3个区，主楼1~3层为A区，4~9层为B区；裙楼1~3层为C区。立管采用异程式，各层采用同程式。

对本建筑的地下室主要设备用房和走道采取机械通风排烟设计。对主楼的防烟楼梯间和消防电梯前室进行正压送风防烟设计，保证楼梯间余压40Pa~50Pa，消防前室余压25Pa~30Pa。楼梯间采用自垂式百叶送风口，每隔两层设一个，每层前室采用常闭式电动百叶送风口。

关键词：空调系统，风机盘管加新风，全空气系统，通风排烟，防烟 I

南华大学城市建设学院本科毕业设计 ABSTRACT

This project is about construction of ventilation and air conditioning design in Galaxy Mansion of Xi’an. The building has basement, and seventeen floors over ground. And, the overall floorage of it is 17,373 �O in which 10,700 �Ofor design. Basement for the equipment room, the main building of 1~9 layer for office space, the 10layer is a sky garden, 11~17storeys for residential building. The skirt building has three floors, and all securities companies operating room. The central air conditioning design range is the main building1~9layer office and the skirt building 1~3layer for securities business district.

The project total cooling load of air conditioning in summer1,417kw, one centrifugal chilled water refrigerating machine is employed as the cold source of the conditioner(single cooling capacity of 1,400kw ).The total heat load in winter is 1,134kw, and the municipal heating network to provide heat source. through a plate heat exchanger heat exchanger for air conditioner in winter heating ( heat transfer for 1,163kw ) . Air conditioning machine room located in the equipment room of the basement.

The project of central air conditioning systems: main building1~9 layer and skirt building 3 layer for fan coil and primary air system. The skirt building 2 layer for hanging air transact unit and primary air system. The skirt building 1 layer is adopted with all-air system , use the hanging air transact unit.

The water system use two-pipe water system, divided into 3 zones, the main1~3layer for A area,4~9 layer for B area; foundation1~3layer for C area. Risers using direct return system,

each layer using reversed return system.

The construction of the basement of main equipment room and hallway to take mechanical design of. As positive pressure air supply smoke control design is adopted

in stairwell, the antechamber and common antechamber of staircase , ensure the stairwell pressure over40Pa~50Pa，antechamber and common antechamber of staircase pressure over 25Pa~30Pa. Tuyere of stair half is adopted with

Gravity Vertical Louver Type Air Opening, every two layer is provided with a chamber. and the normally closed electric tuyere is used in each layer antechamber and common antechamber of staircase.

Key words: Air-conditioning system, Fan coil units with independent fresh air

system, Ail-air system, Ventilation and smoke extraction, Smoke control II

南华大学城市建设学院本科毕业设计 目录

摘

要................................................................................................................................................. I

ABSTRACT ..................................................................................................................................... II 第 1 章 工程概

况 ........................................................................................................................... 1

1.1工程概

况 ............................................................................................................................. 1 1.2设计范

围 ............................................................................................................................. 1 1.3设计条

件 ............................................................................................................................. 1 1.4冷热源条

件 ......................................................................................................................... 2 第 2 章 负荷计

算 ......................................................................................................................... 3

2.1冷负荷计算概

述 ................................................................................................................. 3

2.1.1冷负荷计算参

数 ...................................................................................................... 3 2.1.2冷负荷计

算 .............................................................................................................. 4 2.2新风冷负荷计

算 ................................................................................................................. 6 2.3各房间的负荷计

算 ............................................................................................................. 6

2.3.1各房间冷负荷详细计

算 .......................................................................................... 6 2.3.2 房间负荷汇

总 ......................................................................................................... 7

第 3 章 空调系统方案选

择 ......................................................................................................... 9

3.1 空调水系统的选

择 ............................................................................................................ 9 3.2空调风系统的选

择 ........................................................................................................... 11

3.2.1空调系统的选择原

则 ............................................................................................ 11 3.2.2 方案的比

较 ........................................................................................................... 11 3.2.3 系统的选

择 ........................................................................................................... 13

第4章 空调设备选

型 ................................................................................................................... 14

4.1 末端设备的选

型 .............................................................................................................. 14

4.1.1 空气处理方案及有关参数的查

取 ....................................................................... 14 4.1.2末端设备的选择计

算 ............................................................................................ 15 4.1.3末端设备的布

置 .................................................................................................... 19 4.2 新风机组的选

择 .............................................................................................................. 20

4.2.1新风机组选择计

算 ................................................................................................ 20 4.2.2新风机组的布

置 .................................................................................................... 21

第 5 章 气流组织计

算 ................................................................................................................. 22

5.1 气流组

织 .......................................................................................................................... 22

5.1.1 气流组织的基本要

求 ...........................................................................

................ 22 5.1.2 空气分布

器 ........................................................................................................... 23 5.2 气流组织的方式及其设计计

算 ...................................................................................... 23 第 6 章 水力计

算 ......................................................................................................................... 25

6.1水系统水力计

算 ............................................................................................................... 25

6.1.1 基本公

式 ............................................................................................................... 25 III

南华大学城市建设学院本科毕业设计

6.1.2 冷冻水供回水管路水力计

算 ............................................................................... 26 6.1.3 凝水管系统设

计 ................................................................................................... 34 6.2 风系统水力计

算 .............................................................................................................. 35 第7章 空调的冷热

源 ................................................................................................................. 36

7.1．空调系统的冷

源 ............................................................................................................ 36

7.1.2制冷机的种类及特

点 ............................................................................................ 36 7.1.2制冷机的选

择 ........................................................................................................ 36 7.1.3制冷机的设计运行工况及各项参

数 .................................................................... 37 7.2．空调系统的热

源 ............................................................................................................ 37

7.2.1换热器的分

类 ........................................................................................................ 37 7.2.2换热器的选用原

则 ................................................................................................ 38 7.2.3换热器的选

择 ........................................................................................................ 38 7.3水

泵 ................................................................................................................................... 40

7.3.1冷冻水

泵 ................................................................................................................ 40 7.3.2热水循环

泵 ............................................................................................................ 40 7.3.3冷却水

泵 ................................................................................................................ 41 7.4 分水器和集水器的选择计

算 .......................................................................................... 42

7.4.1分、集水器的构

造 ................................................................................................ 43 7.4.2分、集水器的计算选

择 ........................................................................................ 43 7.5 冷却塔的选

择 .................................................................................................................. 44 7.6 系统定压方

式 .................................................................................................................. 45 7.7放空气

器 ........................................................................................................................... 46 7.8阀

门 ................................................................................................................................... 46 第8章 通风、防排烟系

统 ......................................................................................................... 47

8.1 地下室通风及排

烟 .......................................................................................................... 47

8.1.1设备房的通风计

算 ................................................................................................ 47 8.1.2地下室排烟计

算 .................................................................................................... 48 8.1.3风管及风口尺寸计

算 ............................................................................................ 48 8.2 卫生间换

气 ...................................................................................................................... 48 8.3正压送风系

统 ................................................................................................................... 48

8.3.1加压送风量的计

算 ................................................................................................ 48 8.3.2风机选

择 ................................................................................................................ 51

第9章 管道保温、消声与防

振 ................................................................................................... 53

9.1 管道保

温 .......................................................................................................................... 53 9.2 管道消声防

振 .................................................................................................................. 54 参考文

献 ......................................................................................................................................... 55 总

结................................................................................................................................................. 56 致 谢............................................................................................................................................. 57 附

录................................................................................................................................................. 58 附录

Ⅰ ..................................................................................................................................... 58 附录

Ⅱ ..................................................................................................................................... 62 IV

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