空调设计说明书毕设论文.doc

摘要本毕业设计是为中央空调系统，为创造一个舒适的环境。 本设计包括：冷负荷的计算；；制冷机组的选择；空气处理设备的选择；风管系统和水系统的设计及水力计算风管及水管的保温等。 根据有关标准，本设计中办公室会议室采用的制冷机房WLSBG-I-012-A系列半封闭螺杆式冷水机组。机组冷冻水供水温度为7℃，回水温度为12℃。 关键词：中央空调，风机盘管新风系统Abstract The graduation design is to design the central air-conditioning system of one post office building in the city of Tianjin , so as to create a comfortable environment for the staffs . It contains:the calculation of cooling load and heat load ; The determination of design scheme ; the selection of refrigeration units ; the selection of air handling equipments ; the estimation of air distribution method and the selection of relative equipments ; the insulation of air duct system and the chilled water pipes ;etc. According to some correlation standard , the air conditioning system of the design is Fan Coil Units plus Fresh air system for all floors which are for business hall , office and meeting room . Indoor air return after the fan-coil and the new wind into the air-conditioned rooms are not effect each other. Fan-coil layers of the condensation of water discharged into the drain. There will be a new wind-generating units in each floor from every floor. The new wind from the new outlet outdoor collection, were treated after the supply of rooms to meet the needs of system . The new wind generating units in the corridor on the external walls of the East. The air is sent in on the use of casual converter air supply. Engine room is located in the basement . the system use Two WLSBG-I-012-A series double screw water cooled water chillers . Unit chilled water supply parameters: 7℃，backwater parameters: 12℃Key words : a central air conditioning system of an office building , fan-coil-unit plus，fresh air system目 录 绪论 1 第一章 工程简介 1 1.1 工程概况 2 1.2 设计资料 2 1.2.1 设计依据 2 1.2.2 土建资料 2 1.2.3气象资料 3 1.2.4设计参数 3 第二章 空调负荷的计算 3 2.1 空调冷负荷计算 3 2.1.1围护结构舜变传热形成的冷负荷 3 2.1.2 室内冷负荷 4 2.2 空调湿负荷的计算 6 2.3 空调热负荷计算 6 第三章 设计方案的确定 9 3.1空调系统的分类和比较 9 3.2系统选择说明 12 第四章 风量的计算及空调设备的选型 13 4.1 风机盘管系统 13 4.1.1风机盘