长沙市某科研大厦舒适性空调系统设计.doc
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- 长沙市 科研 大厦 舒适 空调 系统 设计
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1、摘 要本设计为长沙市某科研大厦舒适性空调系统,设计内容包括冷负荷计算,空气处理方案的选择,空调末端设备选型,水管路和风管路系统的设计计算及附属设备的选型,并进行设计说明书的编制和施工图的绘制。通过方案比较,在负荷计算的基础上,采用了风机盘管加新风调系统形式。风机盘管为卧式暗装,新风不承担室内负荷,新风直接通入室内,室内送风采用散流器送风方式。新风从墙洞或新风竖井引入,再由新风机组集中处理供应。冷冻水由地下室的冷冻机房供应,采用了闭式异程两管制水系统。设计工程中考虑了消声、减振的措施。关键词:空调;风机盘管加新风系统;新风Air Conditioning Design of Working bu
2、ilding of Changsha ABSTRACTThis design is about the concertrated air conditioning system of some Technology building , including a series of design contents such as cooling load calculation, selecting and calculating the water system and ventilation system, as well as selecting air terminal devices
3、and appurtenances, and working out the design instruction and drawing the construction drawings employing CAD.On the base of cooling load, heating load and moisture load calculation, primary air fan-coil system are adopted by way of technical and economic analysis. The fresh air doesnt undertake ind
4、oor load and delivers air through fixed deflection grille after mixing the return air in the horizontal recessed fan coil. The handled air is delivered through double deflection grille by sidewall air supply. The fresh air is supplied by hole or shaft and handled by the fresh air handling unit. The
5、chilled water which is a closed two-pipe direct return water system is supplied by the refrigerating plant room. Measures of noise elimination and damp is considered during the design.Key Words: air conditioning; primary air fan-coil system; fresh air目 录 第 1 章工程概况61.1原始资料61.2计算参数61.2.1室外计算参数61.2.2室内
6、计算参数6第 2 章空调冷负荷计算72.1冷负荷计算说明72.1.1办公楼围护结构组成说明72.2室内冷负荷的计算方法72.2.1外墙和屋面瞬变传热引起的冷负荷72.2.2内墙、内门等内围护结构形成的瞬时冷负荷82.2.3外玻璃窗瞬变传热引起的冷负荷82.2.4透过玻璃窗的日射得热引起的冷负荷82.2.5设备散热形成的冷负荷92.2.6照明散热形成的冷负荷92.2.7人体散热形成的冷负荷102.2.8食物散热形成的冷负荷102.3新风冷负荷102.4湿负荷112.4.1人体散湿量112.5办公楼101室冷负荷计算实例11101室冷负荷计算11第 3 章空调系统方案的确定143.1办公楼的空调特
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