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5 Air condition breeze systems
At present, in our country the requirements of central air conditioning is generally only 20m3/ h, some even lower, a lot of central air conditioning which fresh air volume in very low has been selling used; secondly, requirements for foreign central air conditioning's air filtering of high requirements , such as the Japanese mandatory requirements in effect filter, if it cannot reach ,it will be severely punished. Our country to the central air conditioning only use simple screen pack, many central air conditioner filter can not reach even inefficient all, there is no punishment; Third, the central air conditioning wind overseas for demanding, and is mandatory, domestic generally no this requirement; Finally, foreign central air conditioning with common air humidifying equipment, domestic central air conditioning seldom see air humidifying equipment, and few enterprise active installed air humidifying equipment. As a comprehensive office building, the ventilation requirements are relatively high, so to make full use of the outdoor fresh air. The area of the building is bigger, air handling system, the burden of air conditioning area is larger. The design of the room mostly for the office, room area is not large, but are independent, the comprehensive consideration of the entire air system and fan coil plus fresh air system of the advantages and disadvantages, choose the fan-coil unit plus fresh air system. When the office is not a full load operation, it can realize independent air conditioning temperature adjustment, flexibility, good effect in energy saving.
6 Air conditioning water system
Air conditioning water system design principle is to consider the most simple system pipeline, and strive to hydraulic balance, should pay attention to network management and scale, warm and cold preservation effect. According to supply, and back to the number, it is pided into double control how much water pipe, three control and 4 to control. According to the principle can be pided into the open and close system. From the construction of the room, it is known that the room don't need to heating and cooling, design line is not with atmospheric contact, easily at a peak stored up air, so choose closed two pipe system. Hot and cold water share a pipeline system settings, relatively simple, low initial capital investment.
目录
1 工程概况 1
1.1 原始资料 1
1.2 计算参数 1
1.2.1 室外计算参数 1
1.2.2 室外计算参数 1
2 空调冷负荷计算 3
2.1 冷负荷构成及计算原理 3
2.1.1 文护结构瞬变传热引起的冷负荷 3
2.1.2 透过玻璃窗的日射得热引起的冷负荷 3
2.1.3 屋面瞬时传热引起的冷负荷 3
2.1.4 内文护结构冷负荷 4
2.1.5 照明散热形成的冷负荷 4
2.1.6 人体散热形成的冷负荷 4
2.2 新风冷负荷 5
2.3 围护结构附加耗热量 5
2.3.1 朝向修正 5
2.3.2 风力附加 5
2.3.3 高度附加 5
2.3.4 外门开启附加 5
2.4 湿负荷计算原理 5
2.5 各层房间负荷计算 6
3 空调系统方案确定 7
3.1 空调系统的划分原则 7
3.1.1 风系统分区 7
3.1.2 水系统分区 8
3.2 空调水系统 8
3.2.1 冷冻水系统 8
3.3 方案的确定 9
3.3.1 空气处理方案 9
3.3.2 水系统形式 9
3.4 空调工程冷热源的确定 10
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