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1、 摘摘 要要 本次工程为广州市环保局办公楼中央空调系统设计。为一栋六层的多层建筑， 其中地下一层，地上六层。总建筑面积 5946m2，空调面积为 3720m2。建筑的冷负 荷为 495.95KW，冷负荷指标为 83W/；热负荷为 258.66KW，热负荷指标为 43KW/。主要功能房间有办公室、中型会议室、大会议室等。 本设计所有房间均采用了风机盘管加新风系统。新风从室外引入，处理到室 内空气焓值，新风机组仅承担新风冷负荷与部分新风湿负荷，而风机盘管承担室 内全部冷负荷及部分新风湿负荷。对于冷热源的选择,冷源采用两台 LSLGF300 螺 杆式冷水机组，单台制冷量为 324KW。热源采用两台
2、CWNSO.1.5 小型低温燃气锅 炉，单台发热量为 150KW。水系统采用两管制，分两个区，采用异程式水系统。 冷冻水、热水、冷却水供应分别采用三套泵，各三台，两用一备。 卫生间设置机械排风系统，直接排到室外；地下室设置排风与排烟兼用系统， 选用双速风机，平时排风，火灾时排烟。 关键词 空调；风机盘管；螺杆式冷水机组；锅炉；防排烟 Abstract This designation is air conditioning of Environmental Protection Bure office building in Guangzhou city. The construction a
3、s a six layer of the multilayer building，have one layer under ground and 6floors on the ground。The total areas of the construction is5946 square meters ,the area of air conditioning is 3720square meters. The cooling load of the building is 495.95KW, cooling load indicator is 83 w / m2, the heat load
4、 is 258.66kW, heat load indicator is 43 w / m2 by load calculate. The building includes the office, conference room, large meeting room。 The design of all the rooms are use of the fan coil units plus fresh air system. The outdoor air can be introduced from outside, it be processed to the enthalpy of
5、 indoor air, the flesh air handing unit only undertakes the cooling load of outdoor air and the partial moisture load of outdoor air, but the fan-coil unit undertakes the complete cooling load of indoor and the partial moisture of outdoor air. For the choice of cold and heat sources, We choose two L
6、SLGF300 screw type water chiller system, the single refrigerating capacity is 324KW,and choose two CWNSO.1.5 gas boiler, the Single heat is 150KW as the source of the construction to meet the needs of cold and heat load. Water system adopts two-pipe system ,divide 2 areas, adopts different formula o
7、f water system .Condenser water pump is 3 sets ,two use ,one back up. The guest bathroom adopts independent mechanical exhaust system, is directly discharged to the outside; A basement establishes the mechanical system of smoke extraction and air extraction, selects the double fast axial fan, usuall
8、y exracte indoor air ,when the fire ,use to exract smoke. Keywords: air conditioning；fan coil units；screw type water chiller；the boiler； Smoke control and smoke extraction 目录目录 摘 要 ABSTRACT 第 1 章 工程概况1 1.1 工程概述 1 1.2 维护结构基本材料1 1.3 室内外空气计算参数1 第 2 章 负荷的计算3 2.1 夏季冷负荷的计算3 2.1.1 外围护结构冷负荷的计算方法3 2.1.2 室内热源散热引起的冷负荷计算5 2.1.3 计算举例6 2.1.4 冷负荷汇总9 2.2 冬季建筑的热负荷9 2.2.1 计算举例9 2.2.2 热负荷汇总10 第 3 章 空调系统的论述11 3.1 空调方案的确定11 3.1.1 空调方案概述11 3.1.2 风机盘管加新风系统的特点11 3.2 风机盘管的选型计算11 3.2.1 风机盘管加新风系统夏季处理过程计算11 3.2.2 风机盘管的选型13 3.2.3 风机盘管的校核13 3.3 新风处理机组的选择14 3.3.1 计算举例14 3.3.2 机组的选择14 第 4 章 气流组织计算
