安徽建筑大学
摘要
本次设计课题是合肥市某高层空调工程设计，为创造良好的室内环境，根据房间不同的使用功能设计了合理的不同的空调方式，本工程主要采用新风加风机盘管系统。对部分大空间采用全空气一次回风系统，气流组织采用散流器顶送、双层百叶侧送。风道布置力求与土建功能相结合。空调水系统闭式双管制变流量系统。采用假定流速法进行风管、水管水力计算。冷热源的设计充分贯彻了节能的原则，对不同的冷热源设备从性能、能耗指标等方面进行了技术经济比较，确定了最佳方案。叙述了建筑物防排烟设计及自动控制设计原理。提出了空调设备消声减振的措施以及保温保冷设计要求。
关键词：全空气系统 冷水机组 风系统 水系统 风机盘管 气流组织 消声减振 保温保冷 节能
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安徽建筑大学
Abstract
The design issue is an office building in Hefei air-conditioning engineering design, to create a good indoor environment, according to a different room of the reasonable use of the design features of the different air-conditioning, this works mainly the introduction of new wind and fan-coil system. On the part of the entire air space by a return air system, air flow for casual organization sent the top, double .Baiye side delivery. Road layout to the wind and light of the functions of civil engineering.Closed dual air conditioning water system variable flow control system. Using the assumption that the wind velocity method, plumbing hydraulic calculation. Cold and heat source of energy-saving design of the full implementation of the principles for the different cold and heat source equipment from the performance, energy consumption indicators, such as the technical aspects of the economy, identify the best programme. Describes the design of buildings and smoke-control design principle. By the vibration of the air-conditioning silencer-cold insulation measures and design requirements.
Key words: system-wide air chiller air system water fan coil air
distribution system Muffler vibration energy-saving insulation-cold
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安徽建筑大学
目录
1 工程概况 ..................................................................................................................................... 6
1.1、工程概况 ......................................................................................................................... 6 1.2建筑条件 ............................................................................................................................ 6 2 设计依据及基础数据 ................................................................................................................... 6
2.1、设计依据 ......................................................................................................................... 6 2.2、基础数据 ......................................................................................................................... 7
2.2.1、室外气象参数 ..................................................................................................... 7 2.2.2、室内设计参数 ..................................................................................................... 7 2.2.3、热工参数 ............................................................................................................. 7 2.2.4、动力及冷热源条件 ............................................................................................. 8 2.3、人员、照明条件 ............................................................................................................. 8 3 负荷计算 ..................................................................................................................................... 8
3.1空调冷负荷计算 ................................................................................................................ 8
3.1.1空调冷负荷计算方法 ............................................................................................ 8 3.1.2冷负荷汇总 .......................................................................................................... 12 3.2空调热负荷计算 .............................................................................................................. 12
3.2.1空调热负荷计算方法 .......................................................................................... 12 3.2.2、热负荷汇总 ....................................................................................................... 13 3.3空调湿负荷计算 .............................................................................................................. 13
3.3.1空调湿负荷计算方法 .......................................................................................... 13 3.3.2湿负荷汇总 .......................................................................................................... 13
4 冷热源方案设计 ....................................................................................................................... 14
4.1 冷热源配置方案 ............................................................................................................. 14
4.1.1备选方案 .............................................................................................................. 14 4.1.2设备初选型 .......................................................................................................... 14 4.2方案比较 .......................................................................................................................... 14
4.2.1技术性比较 .......................................................................................................... 14 4.2.2经济性比较 .......................................................................................................... 16 4.3结论与分析 ...................................................................................................................... 18 4.4冷热源设备选型 .............................................................................................................. 18
4.4.1冷水机组选型 ...................................................................................................... 18 4.4.2换热器选型 .......................................................................................................... 19 4.5水泵的选择 ...................................................................................................................... 19
4.5.1冷冻水循环泵的选择 .......................................................................................... 19 4.5.2冷却水循环泵的选择 .......................................................................................... 21 4.5.3补水泵的选型 ...................................................................................................... 22 4.6冷却塔选型 ...................................................................................................................... 22 4.7其他设备的选型 .............................................................................................................. 22
4.7.1分集水器选择 ...................................................................................................... 22 4.7.2膨胀水箱选择 ...................................................................................................... 23 4.7.3软化水箱的选择 .................................................................................................. 24 4.7.4除污器与过滤器的选择 ...................................................................................... 24
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安徽建筑大学
5空调系统设计 .............................................................................................................................. 25
5.1空调系统设计 .................................................................................................................. 25
5.1.1空调系统方案 ...................................................................................................... 25 5.1.2系统划分 .............................................................................................................. 26 5.2空气处理及设备选型 ...................................................................................................... 26
5.2.1全空气系统机组选型及校核计算 ...................................................................... 26 5.2.2新风加风机盘管系统机组选型及校核计算 ...................................................... 28 5.3 空调风系统 ..................................................................................................................... 31
5.3.1全空气系统水力计算 .......................................................................................... 31 5.3.2新风系统水力计算 .............................................................................................. 32 5.3.3空调风系统水力计算汇总 .................................................................................. 33 5.4 空调水系统 ..................................................................................................................... 33
5.4.1空调水系统的水力计算 ...................................................................................... 33 5.4.2计算简图及算例 .................................................................................................. 33 5.4.3空调冷凝水系统计算 .......................................................................................... 34 5.4.4空调水系统水力计算汇总 .................................................................................. 34
6 气流组织 ................................................................................................................................... 35
6.1气流组织的形式 .............................................................................................................. 35 6.2气流组织计算 .................................................................................................................. 36 7 通风排烟系统设计 ..................................................................................................................... 38
7.1排烟系统设计 .................................................................................................................. 38
7.1.1方案设计 .............................................................................................................. 38 7.1.2风量计算 .............................................................................................................. 38 7.2主要技术措施 .................................................................................................................. 39 7.3排风系统设计 .................................................................................................................. 40
7.3.1方案设计 .............................................................................................................. 40 7.3.2风量计算 .............................................................................................................. 40 7.3.3卫生间排风系统水力计算 .................................................................................. 41 7.4通风排烟系统主要设备选型 .......................................................................................... 43 8 消声减振与自动控制设计 ....................................................................................................... 43
8.1消声设计 .......................................................................................................................... 43 8.2减振设计 .......................................................................................................................... 43 8.3自动控制设计 .................................................................................................................. 44 9保温防腐...................................................................................................................................... 44
9.1管材 .................................................................................................................................. 44
9.1.1风管 ...................................................................................................................... 44 9.1.2水管 ...................................................................................................................... 45 9.2保温及防腐设计 .............................................................................................................. 45
9.2.1风管的保温及防腐 .............................................................................................. 45 9.2.2水管的保温及防腐 .............................................................................................. 45
致谢 ................................................................................................................................................ 47 附录一 ............................................................................................................................................ 48
英文翻译（原文） ................................................................................................................. 48 英文翻译 ................................................................................................................................. 55
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