摘要
当前,地铁车站设备管理用房的空调负荷设计普遍偏大,主要是因为设计者对空调负荷来源及其比例不清晰,特别是缺少地铁运行期间活塞风对设备用房空调负荷的影响规律的研究,导致空调系统设计偏保守。文章通过对福州地铁4个车站的部分设备用房进行实测和分析,发现渗透风负荷约占设备用房空调负荷的14.9%~72.2%。研究了不同位置房间渗透风压差特性,进而提出了根据位置选择不同压差指标,并结合房间气密性特征进行渗透风量及负荷的计算方法。进一步提出了适用于不同位置设备用房的换气次数选取指标,简化了渗透风量的计算过程。本方法可以支撑地铁车站设备管理用房空调负荷的精细化计算,进而有效解决地铁车站设备用房空调系统配置不合理的问题。
At present,the air conditioning load design of equipment management rooms in metro stations is generally on the large side,mainly because of the lack of clarity on the source of air conditioning load and its proportion,especially the lack of research on the influence law of piston wind on the air conditioning load of equipment rooms during the operation of the metro,which leads to the conservative design of air conditioning systems.In this paper,by measuring and analysing some equipment rooms in four stations of Fuzhou metro,it is found that the osmotic wind load accounts for about 14.9%to 72.2%of the air-conditioning load of the equipment rooms.The characteristics of differential pressure of infiltration air in rooms of different locations are studied,and then the calculation method of infiltration air volume and load is proposed by selecting different differential pressure indexes according to the location and combining with the characteristics of airtightness of the room.It further proposes the selection indexes for the number of air changes applicable to equipment rooms in different locations,which simplifies the calculation process of infiltration air volume.This method can support the refined calculation of air-conditioning load of equipment management rooms in metro stations,and then effectively solve the problem of irrational configuration of air-conditioning systems in equipment rooms in metro stations.
作者
王倩
刘墨云
聂祎宁
苏醒
Wang Qian;Liu Moyun;Nie Yining;Su Xing(Fuzhou Metro Group Co.,Led.;Fuzhou Rail Transit Design Institute Co.,Led.;School of Mechanical and Energy Engineering)
出处
《制冷与空调》
2025年第5期95-102,共8页
Refrigeration and Air-Conditioning
基金
国家重点研发计划项目(2016YFC0700103)。
关键词
地铁车站
夏热冬暖地区
活塞风
设备用房
渗透风负荷
metro station
hot summer and warm winter area
piston wind
equipment room
infiltration wind load
