Rail vehicle and low-vacuum rail vehicle system

A low-vacuum rail vehicle system, used for operating a rail vehicle,

• wherein the rail vehicle comprises:
• a ram air inlet, provided outside a carriage;
• an air compressor, wherein an air inlet of the air compressor communicates with the ram air inlet;
• a heat exchanger, wherein a hot side inlet of the heat exchanger communicates with an air outlet of the air compressor, a hot side outlet of the heat exchanger communicates with space inside the carriage, and a cold side of the heat exchanger is provided with a refrigerant for heat exchange;
• and
• an exhaust valve, wherein a first end of the exhaust valve is provided at an inner side of the carriage, and a second end of the exhaust valve is provided at an outer side of the carriage;
• wherein the low-vacuum rail vehicle system comprises:
• a low-vacuum rail, wherein the low-vacuum rail is provided with multiple sets of seal doors capable of sealing multiple predetermined sections of the low-vacuum rail, the low-vacuum rail is provided with a pressure recovery air inlet, the pressure recovery air inlet is provided with a pressure recovery intake valve, and the low-vacuum rail is provided with an intra-rail pressure sensor;
• and
• a control center, wherein the control center is communicatively connected to the seal doors, the pressure recovery intake valve, and the intra-rail pressure sensor;
• wherein the control center monitors a pressure signal of the intra-rail pressure sensor, when a scene where personnel need to be evacuated occurs in the rail vehicle, the control center transmits a door-closing control signal to the seal doors on both sides of a section where the rail vehicle is located, and the control center transmits an intake control signal to the pressure recovery intake valve until the pressure signal reaches a predetermined threshold.