TRAIN, AND DEVICE AND METHOD FOR PROCESSING COMPRESSED GAS THEREOF

Disclosed is a device for processing the compressed gas of a train, comprising: external input ports (19) for receiving externally input compressed gas; a transmission pipeline (20) connected to the external input ports (19) and used for transmitting the compressed gas; a filtering unit (30) connected to the output end of the transmission pipeline (20) and used for filtering the impurities contained in the compressed gas; a drying unit (40) connected to the filtering unit (30) and used for reducing water content; and an internal output port (50) connected to the output end of the drying unit (40) and used for outputting the compressed gas of which the water rate is reduced to a preset ratio. A vehicle-mounted device can be fully used to process compressed gas, without externally providing a compressed gas processing device, thereby reducing test and operation and maintenance costs, and prolonging the service life of related components. Also disclosed is a processing method applied to the device for processing the compressed gas of a train. In addition, disclosed is a train.