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昆明市地铁站设备与管理用房冬季室内热环境实测分析
何璇1, 罗缘1, 刘猛2, 胡梦强2
1.中铁四院集团西南勘察设计有限公司, 昆明 650000;2.重庆大学 土木工程学院, 重庆 400045
摘要:
地铁站的通风空调系统能耗占比较高,温和地区地铁站设备与管理用房通风空调系统装机容量大,为节能重点。地铁站设备与管理用房通风空调系统的设计呈现“模块化”特点,其设计、运行中存在的问题尚不清晰。2018年11月,对昆明市3座地下车站设备与管理用房室内热环境开展实测,测试参数包括各房间的送、排风量,空调送风温度,通风送风温度,通风排风温度。实测数据表明:各房间送、排风量,换气次数与设计值差异较大;空调房间的换气次数普遍远高于规范规定的最小值;新风井处的新风温度不能代表各房间的送风温度,送风机及风管传热导致的温升不可忽略;房间室内温度普遍偏低,其中,有人员常驻的房间室内温度集中分布在20~24℃,无人员常驻的空调房间室内温度最低,且存在较多低于规范规定范围下限的情况,非空调房间室内温度受室内发热量、换气次数、室外气象影响明显。
关键词:  设备与管理用房  通风空调系统  室内热环境  换气次数
DOI:10.11835/j.issn.2096-6717.2019.118
分类号:TU831
基金项目:
Measurement and analysis of winter indoor thermal environment of facility room in subway stations in Kunming
He Xuan1, Luo Yuan1, Liu Meng2, Hu Mengqiang2
1.Southwest Survey and Design Co., Ltd. of China Railway Siyuan Group, Kunming 650000, P. R. China;2.School of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China
Abstract:
The environmental control system in the subway stations accounts for a relatively high energy consumption. The installed capacity of environmental control system in the subway station facility room in the temperate zone is large, which is the key to achieve energy efficiency. The design of environmental control system in the subway station equipment and management room presents a modular feature, and the problems in its design and operation are still unclear. On-site measurement was carried out in the equipment and management rooms of three underground stations in Kunming in November 2018. Test parameters include the air supply and discharge volume, supply air temperature of air-conditioner, supply and exhaust air temperature of ventilation system in each room. The results show that the supply air volume, exhaust air volume and ventilation times differ greatly from the design value; the ventilation times of air-conditioning rooms is much higher than the limited value. The fresh air temperature at the fresh air shaft can not represent the supply air temperature of each room, and the temperature increase caused by the supply air fan and air duct heat transfer cannot be neglected. The indoor temperature is generally low, and the air temperature in the rooms with people at 20℃~24℃. The air temperature in the air-conditioning room without people is the lowest, and sometimes it is below the lower limit of the specification range. The air temperature in the rooms without air-conditioning is obviously affected by the heat generation, ventilation times and outdoor environment.
Key words:  facility room  environment control system  indoor thermal environment  ventilation times
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