Data center cooler with chiller and cooling tower

摘要

The invention is a cooling module for one or more data centers. The cooling module accepts coolant from a data center, chills the coolant, then returns the coolant to the data center. The coolant is subject to cooling via a free cooling system and a then chiller. The chiller includes a bypass. The free cooling system and the chiller are fluidly connected in a second cooling loop that includes a dry cooling tower. A pump maintains pressure at a predetermined level.

主权项

1. A cooling apparatus, comprising:
an outlet that supplies a chilled liquid to a data center; an inlet that receives return chilled liquid from the data center; a heat exchanger arranged downstream of the inlet that provides first cooling to the return chilled liquid; a chiller unit with an evaporator and a condenser, the evaporator arranged downstream of the heat exchanger with respect to the chilled liquid flow, the chiller unit configured to further cool the return chilled liquid to a predetermined temperature; a pressure difference sensor that measures a pressure difference between the chilled liquid supplied at the outlet and the return chilled liquid received at the inlet; a pump coupled between the heat exchanger and the evaporator that is configured to maintain a predetermined pressure difference between the chilled liquid supplied at the outlet and the return chilled liquid received at the inlet; a bypass line that connects the outlet of the evaporator to the inlet of the pump; control logic that is configured to control the chiller unit such that the return chilled liquid exiting the chiller unit is maintained at the predetermined temperature; and a liquid cooling loop that circulates a coolant; said cooling loop connecting the heat exchanger, the condenser, and a dry cooling tower in series; said cooling loop further comprising a bypass line arranged in parallel to the condenser.