Open cooling tower indirect cooling system for subway station

The utility model belongs to the technical field of metro station energy conservation, and provides a metro station open type cooling tower indirect cooling system which is characterized in that an outlet of an open type cooling tower is connected with a first inlet of a heat exchanger through a water supply pipeline, and a first outlet of the heat exchanger is connected with an inlet of the open type cooling tower through a water return pipeline; a cooling water pump is arranged on the water supply pipeline; a water outlet and a water inlet of the fan coil are respectively communicated with a second inlet and a second outlet of the heat exchanger through a closed cooling pipeline, and a chilled water pump is arranged on the closed cooling pipeline to drive chilled water in the closed cooling pipeline to circularly flow; the fan coil is arranged in an equipment management room area of the subway station; the control system is electrically connected with the cooling water pump and the chilled water pump and ca