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在世界地铁中,以世界第一的营业里程为荣耀的英国伦敦地铁,最近成功地研制出一列隧道清扫列车。使用这种列车,能对吸附在隧道内墙壁、道床、电缆和信号装置上的污浊和金属粉末进行清扫。伦敦交通局研制的这种清扫列车,是由2辆电动车、2辆滤清车、1辆吸收车共5辆组成的固定编组列车。从车辆基地到清扫现场,该列车以和普通车辆相同的速度运行;进行清扫作业时,由于需要超低速,所以具有能用液压传动方式变速的特殊性能。
Among the world’s metro lines, the London Underground in the UK, which is honored with world-class operating mileage, recently successfully developed a tunnel-sweeping train. Using this type of train, dirt and metal powders adsorbed on the inner walls of tunnels, balconies, cables and signaling devices can be cleaned. This type of sweeping train developed by the London Department of Transportation is a fixed marshalling train consisting of 2 electric vehicles, 2 filter cars and 1 absorption car. From the vehicle base to the cleaning site, the train operates at the same speed as the normal vehicle. In cleaning operations, the train has a special feature of being hydraulically-drivable because it requires very low speeds.