5 Air condition breeze systems
Office building design level all adopt fan-coil unit plus fresh air air conditioning system. Corresponding smaller because the air conditioning room, area, each room require separate adjustment, and the room temperature and humidity requirement is strict, so adopt fan-coil unit plus fresh air air conditioning system. Flexible control, the system possesses the superiority of the inpidual control, can be flexible enough to adjust the temperature of the room, according to the use of the room status determine the start-stop of fan coil units; Fan coil unit volume is small, covers an area of small, arrangement and installation is convenient, even suitable for the old building transformation; Easy to implement distributed control system, can according to the room at cold and hot load, purpose, use time the system is pided into several areas, such as implementation of distributed control.
6 Air conditioning water system
As the building's air conditioning system using water-pressure gas tank closure expansion tank means constant pressure. Taking into account the simple design of the pipe line system, the design of water systems in a dual-tube. Rooms vary for the horizontal part of program, namely for, the backwater stem the flow of the opposite direction, each Yi Huanlu ranging from the length of the pipeline, without the return by the way, tubes shorter length, the pipeline simple vertical for the same Program, that is, that is, for, backwater stem the flow in the direction of the same, after each Yi Huanlu the same length of pipe, use of the way so that water distribution, regulation of convenient.
Conversion to take the season points, catchment on a valve switch. Air-conditioning units and fan coil back on the water pipes for electric two-valve, air-conditioning load in accordance with changes in regulation of water through the coil, at the catchment-based electric pressure difference between the bypass valve to maintain pressure on the balance system.
7 Bathroom ventilation design
The project room toilet located mechanical ventilation devices, set exhausting-fan, the ventilation of toilet by 20-30 m3 / h. Windowless bathroom set up exhaust-opening, exhaust duct from the same access to, from exhaust to the outdoors-row. And around the external walls and windows of a bathroom, directly into the outdoors. Toilet maintain negative pressure to prevent the leakage of odors and toilet optional and exhausting-fan check valve.
目 录
1 概 况 1
1.1 工程概述 1
1.2 设计原始资料 1
1.2.1 地理位置 1
1.2.2 气象资料 1
2 空调负荷计算 2
2.1 冷负荷计算 2
2.2 主要计算公式 2
2.3 建筑物墙体的围护结构最小传热阻计算 3
2.4 建筑物窗体及遮阳设施 4
2.5 采暖设计中的参数 4
2.5.1 外墙计算 4
2.5.2 内墙计算 4
2.5.3 外窗计算 5
2.6 冷负荷系数法计算 5
2.7负荷计算数据汇 11
3 办公空调方式的比较和选择 11
3.1 空调风系统的选择及方案比较 12
3.2 空调水系统的选择及特点 15
4 空调设备选型 18
4.1 风机盘管的选择 18
4.2 新风机组的选择 19
4.3 冷水机组的选择 20
4.4 冷冻水泵的选择 21
5 气流组织计算 22
5.1 气流组织的形式 22
5.2 风口大小的选择 22
6 水力计算 23
6.1 风管布置 23 大厦中央空调系统设计+内热湿负荷的计算+系统水力计算(3):http://www.751com.cn/gongcheng/lunwen_8392.html