Emergency cooling supply device for data center

An emergency cooling supply device for a data center, comprising:

• a liquid supply pipe and a liquid return pipe configured to be connected to a liquid-cooled cabinet in the data center;
• a dry cooler connected to the liquid return pipe and configured to cool, with air, a coolant received from the liquid-cooled cabinet via the liquid return pipe a first fan, arranged adjacent to the dry cooler and configured to drive air to flow through the dry cooler;
• a liquid storage tank, connected to the dry cooler via a first valve and configured to store coolant and mix the coolant received from the dry cooler with the stored coolant;
• and
• a circulating pump, having an inlet connected to the liquid storage tank via a second valve and an outlet connected to the liquid supply pipe, the circulating pump being configured to circulate the coolant from the liquid storage tank to the liquid supply pipe and provide the coolant to the liquid-cooled cabinet via the liquid supply pipe