轨道交通高大厂房供暖实测与分析

Heating measurement and analysis in high and large space buildings of rail transit

以严寒、寒冷地区轨道交通领域高大厂房为测试对象,选取典型日对供暖系统供回水温度、室内温度进行了连续测试。测试与分析结果表明:在实际运行中,有列车进出的高大厂房,冷风渗透、侵入耗热量及列车负荷约占总运行负荷的50%以上;针对轨道交通工艺特点,考虑进库列车吸热热负荷,进行合理计算,避免造成供暖系统容量、设备配置过大;提高施工质量,加强运行管理是提高供暖效果、实现供暖节能的主要手段;当前供暖系统节能潜力很大,建议从减少冷风渗透与侵入、采取合理的供暖系统形式及运行策略入手。

Taking high and large space buildings of rail transit in severe cold and cold zones as the test objects,continuously tests the supply and return water temperature and indoor temperature of the heating system based on typical days.The results show that during the actual operating,the loads of cold air infiltration,invasion and train account for more than 50%of the total operating load in a high and large space workshop with train entry and exit.In view of the technological characteristics of rail transit,considers the heat absorption load of the train entry and carries out a reasonable calculation in order to avoid oversize heating system capacity and equipment configuration.Improving the construction quality and strengthening the operation and management are the main ways to improve the heating effect and realize the energy saving.The current heating system has great energy saving potential.Suggests reducing the infiltration and invasion of cold air and adopting a reasonable heating system form and operation strategy.