摘  要:本次設計的內容是北京市某綜合樓空調系統設計，該建筑高約20.0米，是一座集教室、會議室、客房與多功能廳為一體的綜合性建筑物。

　　　大樓總建筑面積為5896.8㎡，其中空調面積為5756.4㎡。房間和走廊均做吊頂，一層吊頂下凈高為3.0m、二層房間內吊頂下凈高為3.0m，走廊內吊頂下凈高為2.8m，三至五層走廊內吊頂下凈高為2.6m，六層多功能廳內吊頂下凈高為2.8m，吊頂的傳熱系數為0.9kcal/℃。

　　　按照一般計算負荷的方法，采用冷負荷系數法計算建筑物的熱、濕負荷，考慮到建筑物的結構和使用功能方面，在設計空調水系統時，采用風機盤管不加和加獨立新風系統二種，對大廳等大空間采用全新風。然后，進行風機盤管、新風處理設備、冷凍機組等的選型和風管和水管的水力計算，確定消聲量，系統壓損，設計系統保溫，防火，排煙和自動控制管理。

　　　畢業設計是教學計劃中一個重要的教學環節，是培養我們運用所學的基礎理論、基本知識和基本技能分析解決實際問題能力的一個重要環節。通過設計綜合運用和深化所學專業理論知識，培養獨立工作能力，分析解決一般工程實際問題的能力，使我們受到工程技術和科學研究的基本訓練，在加深專業基礎知識理解和領悟能力的同時，動手解決實際問題的能力得到了增強和鍛煉。

關鍵詞：空調系統  冷負荷  水力計算  全新風系統  獨立新風系統  風機盤管

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