By the cooling load and moisture load and the new air volume, to calculate the total supply air and cold quantity, fan coil air output and quantity of cold, is used to select models, and the Numbers of fan coil units。 The fan coil undertakes the indoor cold load, the new wind unit assumes the new wind load, so at each layer sets a new wind unit to undertake the new wind load。 The selection of the new wind units is determined by the new winds per layer and the new wind load。

According to the total load of the building, the two screw chiller units are chosen。 The spiral balance is good and the vibration is small。 Simple structure and light weight; The efficiency is high, but the noise is large, so it is set in the nine-layer equipment room。

Duct sizes indeed rule is calculated by assuming that the velocity method, assume a reasonable wind speed, on the basis of the known air flow duct calculating the sectional area of it can be concluded that the size of the duct。 Send the wind to choose the top square diffuser to send the wind, the vents are evenly distributed。 Finally, the hydraulic calculation of wind pipe is calculated, and the pressure loss and the resistance are calculated, and the whole loop can be balanced by adjusting the differential pressure difference between each loop。

The water system uses the closed two control system, the water pipe sets the gate valve and the electric second pass valve on the water pipe。 First draw axonometric drawing air conditioning water system, and the numbered paragraphs pipe, and then determine the pipe diameter, calculate the actual velocity of each section, the most disadvantageous pipeline of local resistance and frictional resistance, and adjust each branch pipe diameter by balance calculation, and finally calculate the total resistance and total water flow, head, etc。, can choose water pump and cooling tower。 The water pump is selected by the flow and lift, the cold water pump is three, and the cooling tower is in the roof。 If volume expansion as the water temperature rise to a surplus, and can discharge excess air in the system, the system of constant pressure filling water, you need to join the expansion tank in the system。

In terms of ventilation and smoke exhaust design, each room the use of natural ventilation, the site selection before the stairwell and elevator room set up mechanical pressure exhaust shaft, toilet exhaust design for fan centralized to the outside。

目录

0 绪论 8

1 工程概况 9

2 各参数资料 9

2。1 室外气象资料 9

2。2、室内气象资料 10

2。3 围护结构参数 10

3 负荷计算 12

3。1 负荷计算公式 12

3。2 房间负荷统计结果 20

4 空调方案确定 21

4。1 方案比较 21

4。2 方案的确定 22

4。3空调水系统方案 23

4。4 冷热源方案的确定 23

5 空调风系统 23

5。1 风机盘管加新风系统的处理过程及送风参数确定 23

5。2 新风量及风管尺寸的确定 24

6 空调设备的选择 24

6。1 风机盘管机组的计算选型 25

6。2 新风机组的计算选型