Air-cooled chiller system for indoor cooling of data center using liquid pump

摘要

The present invention is installed outside a data center, and is provided on one side of the data center, an outdoor unit that heats the cooling water and the first refrigerant flowing along the inside with external air to cool the cooling water through heat exchange and condense the first refrigerant, A refrigerator that cools the heat exchange medium through heat exchange between the first refrigerant and the heat exchange medium by heat exchange between the first refrigerant circulating in the refrigeration cycle and the introduced heat exchange medium, and is installed adjacent to the server rack in the data center. Cool zone of the server rack by passing indoor air flowing through the hot zone of the server rack to the second refrigerant that is cooled by the cooling water and the heat exchange medium while flowing, and cools the indoor air by heat exchange between the second refrigerant and the indoor air. The indoor cooler flowing out to the (Cool Zone), and the outdoor unit, the freezer, and the indoor cooler are electrically connected, and according to the dry bulb temperature and the wet bulb temperature of the outside air, any one of precooling mode, adiabatic cooling mode, dual source mode, and freezer mode Including a control unit that sets as one control mode and controls the driving of the outdoor unit, refrigerator, and indoor cooler for each set control mode, so that the liquid refrigerant, which is a heat medium of the indoor cooler, is circulated to the liquid pump, and the liquid pump according to the load amount. By controlling the inverter, it is possible to actively respond with little power consumption according to the fluctuations of the air conditioning load, and because the air is blown by convection and flow of indoor air according to the hot zone and cool zone of the server rack, cooling operation is possible with the least blowing means. Provides an air-cooled chiller system for indoor cooling of data centers using pumps.