Phase-change cooling tower and refrigeration method

Abstract

The embodiment of the invention provides a phase-change cooling tower and a refrigeration method. The phase-change cooling tower comprises a phase-change refrigeration unit and a cold water unit; thephase-change refrigeration unit comprises a first fan, a first spray thrower, a first heat exchanger, a first water storage disc, a first water pump, a liquid storage tank and a liquid pump; the coldwater unit comprises a second fan, a second spray thrower, a second heat exchanger, a second water storage disc and a second water pump; water in the second water storage disc is sprayed to the uppersurface of the first heat exchanger, partial water evaporates so that heat can be taken away, and partial water which does not evaporate falls on the first water storage disc; water in the first waterstorage disc is sprayed to the second heat exchanger, partial water evaporates so that heat can be taken away, and partial water which does not evaporate falls on the second water storage disc. The phase-change cooling tower has the advantages that compared with an existing cooling tower, colder water provided by the cold water unit can be used for cooling a gas-shaped secondary refrigerant in the first heat exchanger, and the tolerance level to the outdoor air temperature is higher.

Description

【Technical field】 [0001] The invention relates to the technical field of refrigeration in data centers, in particular to a phase-change cooling tower and a refrigeration method. 【Background technique】 [0002] With the rise of cloud computing, big data, Internet of Things and artificial intelligence, the demand for large data centers is increasing day by day; countries and major companies are also paying more and more attention to the environment and energy consumption. As a large energy consumer and the main carrier of future cutting-edge technologies, the data center’s main requirements on the infrastructure side are energy saving, fast and flexible deployment, and cost optimization. As a major energy consumer, the cooling system is the focus of optimization. At the same time, the development of server and chip technology, the development of heterogeneous computing such as GPU, FPGA and ASIC, and the development of high-performance CPU have all made the computing density h...

AI Technical Summary

Problems solved by technology

However, due to the heat exchange between the spray water and the air, the air is prematurely close to saturation, and when it rises to the heat exchanger of the phase change cooling tower, it has lost the latent heat capacity of evaporation; After showering, it falls back to the water storage tray. During the water circulation, it continuously absorbs the heat in the heat exchanger of the phase change cooling tower, and the temperature continues to rise, resulting in a decrease in cooling effect.

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