Rail Transit

As one of the important equipment systems in urban rail transit, the ventilation and air conditioning system is responsible for controlling the air temperature, humidity, air flow rate, air pressure and air quality in the internal space of urban rail transit. When the train is in normal operation, it provides a suitable artificial environment for passengers and staff to meet their physiological and psychological requirements; when the train is blocked in the interval tunnel, it provides a certain amount of ventilation to the blocked area to ensure the normal operation of train air conditioning and other equipment and maintain the environmental conditions acceptable to passengers in the car for a short period of time; when a fire accident occurs, it provides rapid and effective means of smoke extraction to provide passengers and firefighters with sufficient fresh air. When a fire accident occurs, provide sufficient fresh air and form a certain head wind speed to guide passengers to evacuate the fire scene safely and quickly; provide the necessary air temperature, humidity and cleanliness for various equipments to ensure their normal operation.