公司办公楼空调通风系统设计+CAD图纸(2)
Summer air conditioning cold source is in the basement of two compression chillers, supply and return water temperature of 7/12 degrees. Matched with chilled water pumps and cooling water pump use all three units, wherein each one backup. The total cooling load of air conditioning in summer is 368.013kw. Air conditioning water system is a variable flow pump pipe system. Air conditioning air conditioning rooms adopt fan coil unit plus fresh air system.
This design is targeted mainly office and restaurants air-conditioning design. For the office staff, visitors and other staff provide a comfortable and healthy environment. Each floor places set one independent fresh air machines to support the independent fresh air for all the air conditions room in that floor. The system has advantages on energy-saving, long life, adjustable and space-efficient.
Automatic control of the HVAC system with direct digital control system, DDC system, which consists of a central computer and terminal equipment with a plurality of field control station and sensor and actuator. Chilled water system with cold quantity control water chiller and the corresponding number of operating water pump, cooling tower.
The fire control system and air conditioning control system of DDC compatible and communication, direct start stop system into DDC through the fire control system of the equipment shall be in the fire.
The wind pipe all fresh air conditioning room, wind pipe passes through the firewall, through the floor of the main vertical wind pipe is connected with a branch air duct is provided with 70 degrees fire control valve. Exhaust system should be 280 degrees fire control valve is arranged on the fan inlet
This design 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; silencing shock absorption measures of the system and heat preservation anticorrosive measures of the pipeline.
Keywords: energy conservation; primary air fan-coil system；the air-air system；smoke control；
目录
1． 绪论1
2． 工程概况2
2.1.原始资料.2
2.2设计资料2
2.3室外气象参数2
2.4室内设计参数2
3．空调系统方案选择4
3．1方案比较.4
3．2方案确定.5
4．空调负荷计算.7
4.1冷负荷构成以及计算原理7
4.2房间冷负荷计算结果.11
5．空调房间送风参数计算以及设备选型21
5．1房间送风参数计算.21
5．2风机盘管选型计算.22
5．2．1风机盘管的选取22
5．2．2风机盘管布置23
5．2．3新风机组选择计算23
6．气流组织25
6．1常见送回风口形式.25
6．2气流组织.25
6．3新风系统选定.25
6．3．1新风系统布置25
6．3．2新风管水力计算.26
7．空调冷热源选择29
7．1冷源的选择.29
7．2冷水机组的选择29
8．空调水系统30
8．1空调水系统确定.30
8. 2水力计算.30
8．2．1横管水力计算.30
8．2．2竖管水力计算.34
8．3冷水泵的选择.35
8．4冷凝水管的选择计算.36
8. 5冷却塔的选择计算.37
8．6冷却水泵的选择.37
9．通风与防排烟39
10．空调系统的消声减震和保温40
10．1消声和隔音.40
10．2减震措施40
10．3保温措施40
结论.41
致谢.42
参考文献.43
附表.44
1. 绪论
为了适应城市建设迅速发展的需要，我们对于建筑物的使用要求越来越高，尤其是对建筑物内的空气品质及舒适程度的要求越来越高。因此需要研发一种舒适健康同时节能的中央空调系统。设计这样一种空调系统就很有必要了。