摘要本次毕业设计课题为北京市某小商品市场的中央空调设计及防排烟设计,对于商场等一些人流多且杂的场所,为了改善室内空气品质,防止室内一些有害物质浓度过高对人体产生危害,就不得不对室内空气进行处理。65283
建筑地下一层为车库和设备房间,地上四层均为商场,每层面积约为2400㎡,层高21.9m。
本设计采用活塞式冷水机组为空调冷源,外网集中供暖系统为热源。因商场空间较大,采用全空气系统为空调方式。用组合式空气处理机组进行空气处理,全空气系统采用方形散流器平射流形式,回风用单层百叶风口顶回风的形式。水系统采用闭式水系统。地下室、设备房设置排烟系统,选用风机平时排风,发生火灾时排烟。
毕业论文关键词 全空气 组合式空调机组 防排烟 闭式水系统
毕业设计说明书(论文)外文摘要
Beijing commodity market of HVAC engineering design
The graduation project is a commodity market in Beijing central air-conditioning design and smoke design. for a number of shopping malls and other places with heavy pedestrian traffic and complex, in order to improve indoor air quality, prevent some of the harmful substances in the indoor high concentrations cause harm to humans, they have to deal with the indoor air. bulding basement to garage and equipment room, ground four are shopping malls, each floor area of approximately 2,400 square meters, the height of 21.9m .
The design uses a piston chillers for the air conditioning cold source, extranet central heating system as a heat source. Arcade space due to a larger system with full air conditioning mode. With modular air handling units for air treatment, the whole air system uses flat square diffuser jets form a single layer Louver return air back to the top of the wind in the form. Water system with closed water system. Basement, equipment room set exhaust system, the choice of the exhaust fan usually, when the fire smoke.
Keywords: all-air Modular air conditioning units smoke closed water system
目 录
1 概论 1
1.1 工程概况 1
1.2设计依据 1
1.2.1 设计目的 1
1.2.2设计任务及要求 1
1.2.3设计范围 1
1.2.4设计规范与标准 1
2 空调负荷计算 2
2.1 空调室内、外计算参数 2
2.1.1 室内空气设计参数 2
2.1.2 空调室外空气计算参数 2
2.2 空调新风量的确定 2
2.3 空调冷负荷计算 3
2.3.1 维护结构瞬变传热引成的冷负荷 3
2.3.2 透过玻璃窗的日射得热引成的冷负荷 5
2.3.3 室内热源散热引成的冷负荷 7
2.3.4 空调夏季新风负荷计算 9
2.4 湿负荷计算 9
2.4.1 人体散湿量 9
2.5空调热负荷计算 9
2.5.1 围护结构基本耗热量计算