雄安站首层候车厅空调系统气流组织优化设计

Air distribution optimizing design of air conditioning system for first-floor waiting hall of Xiongan Station

雄安站首层候车厅属于典型的高大空间,采用传统辅助用房设置机房的全空气系统,送风半径大、能耗高,且不满足清水混凝土的装修风格,设计采用分散的送风单元系统,并采用贴附射流结合侧送喷口的末端方式进行送风。利用计算机模拟手段,比较了夏季3种工况(贴附送风、喷口侧送风、贴附送风结合喷口侧送风)人员活动区气流组织分布,得出较优的送风方式,并对冬季设计工况进行了校核。结果表明,夏季采用分散式系统比集中的全空气系统风系统输送能耗降低了30%左右,采用贴附射流结合喷口的送风方式比传统的喷口侧送方式夏季降低了15%能耗。

The waiting hall on the first floor of Xiongan Station is a typical tall space. Adopting the traditional auxiliary room to set up the machine room, the all air system has a large air supply radius and high energy consumption, and does not meet the decoration style of fair-faced concrete. Therefore, the design adopts a decentralized air supply unit system and adopts a combination of attached jets and side delivery nozzles. By computer simulation methods, compares the air distribution in the personnel activity area of the three working conditions in summer(attached ventilation, side delivery from nozzles, attached ventilation combined with side delivery from nozzles), obtains a better air delivery method, and checks the design conditions in winter. The result shows that the use of a decentralized system in summer reduces the energy consumption of air transportation by about 30% compared with a centralized all-air system, and that the air supply method using attached jet combined with nozzles reduces energy consumption by 15% in summer compared with the traditional nozzle side delivery method.