Large temperature difference air conditioning system for heat extraction of data center and using method thereof

Abstract

The invention relates to a large temperature difference air conditioning system for heat extraction of a data center and a using method thereof. The large temperature difference air conditioning system for heat extraction of the data center comprises an air-watermeter cooler, a cooling tower unit, and at least two stage mechanical compression type refrigerating units. The cooling tower unit comprises a heat exchanger, a circulating pump and a cooling tower. Each stage mechanical compression type refrigerating unit comprises an evaporator, a compressor, a condenser and a throttling valve. An air inlet of a shell of the air-watermeter cooler is connected with an air outlet of the data center, and an air outlet of the shell of the air-watermeter cooler is connected with an air inlet of the data center. A water outlet of a heat exchange tube of the air-watermeter cooler is connected with a water inlet of the shell of the heat exchanger of the cooling tower unit. A water outlet of the shell of the heat exchanger is connected with a water inlet of a shell of the evaporator of each first stage mechanical compression type refrigerating unit. The water outlet of the shell of the evaporator is connected with a water inlet of the shell of the next evaporator. Finally, the water outlet of the shell of the last evaporator is connected with the water inlet of the shell of the air-watermeter cooler through another circulating pump. According to the large temperature difference air conditioning system for heat extraction of the data center and the using method thereof provided by the invention, the circulating water supply flow and power consumption are effectively reduced, and the large temperature difference air conditioning system for heat extraction of the data center can be widely applied to the heat extraction process of various large and medium data centers.

Description

technical field [0001] The invention relates to an air-conditioning system and its usage method, in particular to a large temperature difference air-conditioning system for data center heat removal and its usage method. Background technique [0002] With the continuous development of the information industry, the scale and number of data centers are increasing rapidly. The data center has the characteristics of high heat density and needs to turn on the air conditioning system throughout the year to eliminate indoor heat generation. In addition to the power consumption of IT equipment, the power consumption of the air conditioning system is the main component of the power consumption of the data center. Improving the energy efficiency of the air-conditioning system and reducing the power consumption of the air-conditioning system by various means is of great significance to reducing the power consumption of the entire data center and promoting energy conservation and emissio...

AI Technical Summary

Problems solved by technology

The use of cooling towers for cooling has a better level of energy efficiency, but at present, in the air-conditioning system when the water temperature difference is small (about 5°C), the running time of the cooling tower is limited: only when the temperature of the cooling water generated by the cooling tower is low enough The cooling tower is used to realize cooling. When the cooling water produced by the cooling tower cannot fully meet the cooling demand, the cooling tower cannot be used for cooling.

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