安全门地铁环控风机运行模式节能优化分析

为进一步降低地铁运行能耗,以南京地铁二号线为对象,对环控系统的空调大系统控制组成进行分析,提出了"事故风机兼作空调风机使用"的新型集成环控风机运行模式。在此基础上,通过分析新风量变化对通风空调能耗的影响,得出了空调节能效率随着新风百分比的增加而减少的结论,并建立了环控系统通风空调耗电量的理论计算公式。运用STESS模拟软件分别对地铁在原通风模式和新式通风模式下的初期、近期、远期进行能耗模拟。模拟结果表明,采用新式风机运行模式,地铁全线初期、近期、远期每年节省电量分别为22.49%,21.95%,17.85%。

Optimization of operation schemes of fan for metro with platform safety gate

To achieve a minimal power consumption in metro application, Nanjing subway line 2 was taken as the research object. Firstly, large wind system of air-conditioning of environmental control system was studied, and a new mode of integrated environmental control fan operation of air-conditioning fan also used in the accident put forward. Besides, based on the influence of the new air volume on the ventilation air-conditioning energy consumption, it was concluded that the relationship between the new air percentage and air-conditioning energy-saving efficiency, and the theory calculation formula of ventilation air-conditioning power consumption was established. Software of STESS was used to simulate the power consumption at the beginning,the near future and long-term,in the original subway ventilation mode and the new ventilation mode, respectively. The results show that the subway all line at three stages can annually save electric energy by 22.49%, 21.95%, 17.85%,respectively,compared with the traditional ventilation mode.