北京市国际大厦空调设计说明书.docVIP

北京市国际大厦空调系统设计 摘 要根据各房间的功能不同，采用风机盘管加独立新风系统，风机盘管采用暗装吊顶式，新风直接送入房间。水系统采用闭式双管异程式系统。international building air-conditioning design Abstract The design is about Beijing international building air conditioning engineering which is an office buildings including 4 layers. The underground floor is equipment room. The1~ 4 layers are offices room.The total building area is about 11079m2 and air conditioning cooling load is about 435.54 kw. According to the function room, the requirements of temperature and humidity and the use of different time, in order to facilitate adjustment system, the design uses independent fresh air and fan coil system, in which fan coil uses dark outfit condole type and the fresh air which is processed is sended into the air-conditionings rooms directly. Water system uses closed two-pipe system. The design includes the classification of air conditioning system, the calculation of cooling load, the selection of air-conditioning equipments, collocation and hydraulic calculation of air duct and water pipe, the calculation of air distribution, noise reduction,vibration isolation and insulation of air conditioning system ,the design of refrigerating plant room and the selection of water pump and ventilation equipment and so on. Keywords:fresh air ；fan coil units ；chillers and air exhaust 目 录 摘 要 I Abstract II 前言 VII 第一章 设计原始资料 1 1.1 建筑概况 1 1.2 设计依据 1 1.2.1 设计任务书 1 1.2.2 室外计算参数(北京) 2 1.2.3 建筑物围护结构的热工性能 2 1.3 室内设计参数 2 第二章 空调系统方案选择 4 2.1 各空调系统方案比较 4 2.1.1 集中式空调系统优缺点 4 2.1.2 风机盘管加新风系统（半集中式系统）优缺点 5 2.1.3 单元式空调器（全分散系统）优缺点 5 2.2 各种空调系统的适用条件 6 2.3 空调系统方案选择 6 第三章 空调冷负荷计算 7 冷负荷构成及计算原理 7 3.1.1 围护结构瞬变传热形成冷负荷的计算方法 7 3.1.2 透过玻璃窗的日射得热引起冷负荷的计算方法 9 3.1.3 设备散热形成的冷负荷 10 3.1.4 照明散热形成的冷负荷 11 3.1.5 人体散热形成的冷负荷 12 3.1.6 新风冷负荷 13 3.2 人体散湿量 14 第四章 空调过程设计及处理设备选择 15 4.1 空气处理过程分析 15 4.1.1 风机盘管加新风系统的空气处理 15 4.2 系统新风量的确定 16 4.2.1 送风状态点的确定和送风量的确定 16 4.2.2 最小新风量确定的原则: 16 4.2.3 最小新风量的计算 17 4.3 风机盘管选型计算 17 4.4 新风机组选择计算 18 第五章 风口及气流组织设计 20 5.1 气流组织的重要性 20 5.2 送、回风方式及风口形式 20 5.2.1 散流器平送的