摘 要:本次设计的内容是北京市某综合楼空调系统设计，该建筑高约20.0米，是一座集教室、会议室、客房与多功能厅为一体的综合性建筑物。
大楼总建筑面积为5896.8㎡，其中空调面积为5756.4㎡。房间和走廊均做吊顶，一层吊顶下净高为3.0m、二层房间内吊顶下净高为3.0m，走廊内吊顶下净高为2.8m，三至五层走廊内吊顶下净高为2.6m，六层多功能厅内吊顶下净高为2.8m，吊顶的传热系数为0.9kcal/℃。
按照一般计算负荷的方法，采用冷负荷系数法计算建筑物的热、湿负荷，考虑到建筑物的结构和使用功能方面，在设计空调水系统时，采用风机盘管不加和加独立新风系统二种，对大厅等大空间采用全新风。然后，进行风机盘管、新风处理设备、冷冻机组等的选型和风管和水管的水力计算，确定消声量，系统压损，设计系统保温，防火，排烟和自动控制管理。
毕业设计是教学计划中一个重要的教学环节，是培养我们运用所学的基础理论、基本知识和基本技能分析解决实际问题能力的一个重要环节。通过设计综合运用和深化所学专业理论知识，培养独立工作能力，分析解决一般工程实际问题的能力，使我们受到工程技术和科学研究的基本训练，在加深专业基础知识理解和领悟能力的同时，动手解决实际问题的能力得到了增强和锻炼。
关键词：空调系统 冷负荷 水力计算 全新风系统 独立新风系统 风机盘管
Abstract:The content of the design is the design of central air-conditioning system for a complex building of Beijing， the height of this building is about 20.0meters， which is a complex building of classroom conference room, guest room and multi-function hall.
The total building area is 5896.8㎡， and the air-conditioning area is 5756.4㎡。Condole supports are made for rooms and corridors. The first layer of the condole is top down for 3.0m， and the second layer is also 3.0m.Whthin the corridors is 2.8m to next clear ceiling， three to five layer within the corridors is 2.6m. The clear height within the sixth floor， which is used as multi-functional hall， is 2.8m. The heat transfer coefficient of condole supporters is 0.9kcal/℃。
First， as the common method， the cooling load and damp load are calculated by CLC method. As consideration the building structure and its usage， the scheme of air-conditioning system of this building have two， which is fan coil unit with and without additional individual fresh air unit， and smoke-expelling system for such large space as hall. Then， the fan coil， air-conditioning units of fresh air， water-cooling units is selected. The hydraulic calculation of the air and water system， the measure of sound deadens， liberation suppression， thermal protection， fire defense， smock evolvement and regulation scheme is done. Finally， the summary of the design are made The design before graduate which train the basic theory and professional knowledge of us and let us to gain the power to analyze actual problem is a great part of the teaching plan. Though this design we get the basic training of the engineering and scientific research. In deepening basic specialized knowledge and understanding and comprehension ability, hands ability to solve practical problems are enhanced and exercised.
Keywords: Air-conditioning system Cooling load Hydraulic calculation smoke-expelling system Additional fresh air system fan coil
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