Cooling system for equipment and network cabinets and method for cooling equipment and network cabinets

A method for a cooling equipment and network cabinet and superimposed electronic modules located therein, in which an airflow travels in closed circuit form, comprising the steps of:

• cooling heated exhaust air in an air-water heat exchanger located in the lower cabinet area to a create cold supply air,
• supplying the cold supply air with a uniform air temperature in a rising supply airflow to the individual electronic modules in a long first airflow path, and removing the heated exhaust air in equally long airflow paths and therefore with equal flow resistances with respect to the individual electronic modules,
• removing the cold supply air from the individual electronic modules as heated exhaust air in a long second airflow path of equal length with the first airflow path and therefore with equal flow resistances with respect to the individual electronic modules,
• initially collecting the heated exhaust air from the electronic modules in a first exhaust air duct section, and subjecting the heated exhaust air in the first exhaust air duct section to a rising flow, then reversing the heated exhaust air and supplying it in a falling exhaust airflow to the air-water heat exchanger in the lower cabinet area, and
• air-technically separating the cold supply air from the heated exhaust air.