Under-floor air supply data center refrigeration system

Abstract

The invention provides an under-floor air supply data center refrigeration system. The under-floor air supply data center refrigeration system comprises two rows of cabinets, the air inlet ends of which are arranged in a face-to-face manner; air return devices, which are connected with the air outlet ends of the cabinets; air return ducts provided with built-in heat exchangers; a machine room elevated through hole floor; and a cooling channel formed by the cabinets, a channel door, the elevated through hole floor, and a top part closing plate in an encircled manner. The hot air exhausted by the air outlet ends of the cabinets are delivered by the air return devices to the heat exchangers for cooling. The heat exchangers are disposed in the air return ducts, and one side of each of the air return ducts is connected with the corresponding air return device, and the other side of each of the air return ducts is connected with the lower part of the elevated through hole floor. The cooled air enters the lower part of the floor, and is delivered to the cooling channel by the through hole floor after being mixed and stabilized. The cool air in the cooling channel is sucked in by the cabinets, and then is exhausted by the cabinets to complete heat dissipation circulation. The under-floor air supply data center refrigeration system is advantageous in that energy loss of a draught fan on an end of an air conditioner is saved, and problems of common under-floor air supply systems such as non-uniform air supply in the length direction of the cooling channel, two fast bottom air supply speed, small air inlet quantity of servers on the lower parts of the cabinets, and easy generation of local hot spots are improved, and therefore the internal temperature of the cabinets is reduced, and the integrated heat dissipation efficiency of the cabinets is improved.

Description

technical field [0001] The invention relates to a data center refrigeration system, in particular to a downflow data center refrigeration system. Background technique [0002] The data center's demand for energy is ultimately reflected in the demand for electrical energy. At present, the energy consumption of IT equipment only accounts for 30% of the energy consumption of the entire data center, while the energy consumption of cooling equipment accounts for 50%-60%. The cooling system is the largest energy consumer in the data center computer room. Recently, large-scale, high-density, and data-concentrated data centers are becoming more and more popular, and the heat dissipation problem of high-density server rooms is becoming more and more difficult to solve. The use of traditional precision air-conditioning systems presents a huge energy consumption, and the PUE value remains high. status. Therefore, the energy saving of the air conditioning system is the core of the ov...

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a downflow data center refrigeration system, which is used to solve the problem of increased energy consumption of air-conditioning fans due to the increase in the power density of the cabinets in the prior art

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