西安某商场空调系统工艺设计
摘要
本设计为西安市某商场中央空调系统,拟为之设计合理的中央空调系统,为室内工作人员提供舒适的工作环境。
该建筑为五层建筑，并有地下室，总建筑面积为8904m2。该商场一层最大冷负荷为QC=111004.6W，出现在16：00时，冷负荷指标为：86.0W/m2；二到五层最大冷负荷为QC=114662.3W，出现在16：00时，冷负荷指标：85.5W/m2；五层最大冷负荷为QC=134609.0W，出现在21：00时，冷负荷指标：100.4 W/m2。通过计算后整栋商场的热负荷为Q=167103.7 W
热负荷指标：27.5 W/m2。各层层高详见图纸， 地下室为制冷、空调机房、换热间、水泵房、配电室等，战时为人防工程，和平时期为停车库。
设计内容包括: 空调冷负荷的计算；空调系统的划分与系统方案的确定；空调末端处理设备的选型；风系统的设计与计算；室内送风方式与气流组织形式的选定；水系统的设计、布置与水力计算； 风管系统与水管系统保温层的设计；消声防振设计；等内容。
本设计依据有关规范考虑节能和舒适性要求，设计的空调系统采用全空气系统。
关键字：商场；中央空调；全空气系统；性能比较。
Abstract
The graduation project designs a central air conditioning system for Xi'an, central air-conditioning system in a shopping mall, so as to create a comfortable work environment for the stuff.
For the five-storey building of the building and the basement, with a total construction area of 8904m2,The biggest shopping mall cooling load for a layer of QC = 111004.6W, appears in 16:00, the cooling load indicators: 86.0W/m2; two to five the maximum cooling load for QC = 114662.3W, appears in the 16:00 am, cooling load indicators: 85.5W/m2; cooling load for the five largest QC = 134609.0W, appears in 21:00, the cooling load indicators: 100.4 W/m2. After the entire shopping center by calculating the heat load for Q = 167103.7 W Indicators of heat load: 27.5 W/m2. Detailed drawings of the high levels, the basement for the refrigeration, air-conditioned room, heat exchanger, the pump rooms, power distribution room, in time of war for civil air defense projects for the parking garage in time of peace.
It contains: cooling load calculation; the estimation of system zoning; the selection of refrigeration units; the selection of air conditioning equipments; the design of air duct system and calculation; the estimation of air distribution method and the selection of relevant equipments; the design of water system and its resistance analysis; the insulation of air duct plant and chilled water pipes; noise and vibration control; etc.
According to some correlation standard, allow for energy safe and indoor comfort, the air condition system of the design is All-air system.
Key words: shopping mall; Central air conditioning;
All-air system;
The function compare.
目 录
摘要．．．．．．．．．．．．．．．．．．．．．．．．．．................................................. 1
第1章 绪论................................................................... 5
1.1 我国暖通空调的现状及发展.............................................. 5
1.2 建筑空调系统节能国内外研究状........................................ 5
1.3 空调系统的设计与建筑节能............................................ 6
1.4 空调的发展和前景...................................................... 7
1.5 原始资料................................................................ 9
第2章 空调负荷计算负荷的计算.............................................. 5
2.1 夏季冷负荷的计算....................................................... 11
2.2 冬季热负荷的计算....................................................... 20
2.3 房间散湿量............................................................. 26
2.4 新风负荷............................................................... 26
第3章 空调系统方案的确定和风量的计算................................... 29
3.1 划分空调系统，确定空调方案............................................. 33
3.2 确定送风状态点......................................................... 36
3.4 空调系统运行调节....................................................... 36
第4章 空调设备的选择...................................................... 37
4.3 空调机组的选型......................................................... 37
4.5 冷水机组的选型….......................................................39
第5章 确定房间的气流组织计算............................................ 42
5.1 气流组织介绍........................................................... 42
5.2送风口与回风口......................................................... 43
5.3风口型式的确定......................................................... 43
5.4散流器平送气流组织计算................................................. 44
第6章 风管水力计算......................................................... 47
6.1 空调系统的风管布置..................................................... 47
6.2风管水力计算......................................................... 48
6.3回风管的布置........................................................... 60
6.4冷却塔的选择........................................................... 61
第7章 排风系统的设计 .................................................... 62
第8章 确定管道的消声、减振的措施........................................ 64
9.1空调系统的消声......................................................... 64
9.2空调系统得减振......................................................... 66
第9章 确定管道的保温、防腐的措施........................................ 67
10.1保温材料的确定.........................................................67
10.2保温层厚度的选定...................................................... 67
10.3施工说明.............................................................. 68
结论........................................................................... 69
参考文献....................................................................... 70
致谢........................................................................... 72
