Multi-cold source cooling energy-saving system of data center and control method of system

Abstract

The invention relates to a multi-cold source cooling energy-saving system of a data center and a control method of the system. The system comprises an air return system, an air sending system and a cooling system. Non-contact cooling between the system the an outdoor environment is achieved by water evaporation, an asymmetric hot pipe heat exchanging system and a compression heat exchange system,an outdoor natural cold source is efficiently utilized, and the running time of a compressor refrigerating system is reduced; under a condition that a fault occurs in an emergency water supply system,cooling running of the system in three running modes also can be achieved, and the safety level of the data center is improved; and automatic running of the system is controlled according to the change of an outdoor temperature, the system is high in intelligence and is more accurate, and the safety of the data center is improved.

Description

technical field [0001] The invention relates to a data center cooling system, and specifically discloses a data center multi-cold source cooling energy-saving system and a control method thereof. Background technique [0002] Due to the heat dissipation of a large number of server cabinets in the data center, the heat dissipation intensity of the indoor servers is relatively high, and 24 hours a year, 365 days, requires continuous cooling. Compared with traditional buildings, the energy consumption is very large. If it cannot be cooled effectively, It will lead to overheating of the server and downtime; on the other hand, the outdoor air contains dust, or acidic compounds such as sulfur, which will cause damage to the server or wires. When the outdoor air quality in my country does not meet the requirements, the cooling mode The direct contact heat exchange method cannot be used, that is, the natural cold source of the outdoor air cannot be directly used. In addition, the wet...

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Problems solved by technology

[0002] Due to the heat dissipation of a large number of server cabinets in the data center, the heat dissipation intensity of the indoor servers is relatively high, and 24 hours a year, 365 days, requires continuous cooling. Compared with traditional buildings, the energy consumption is very large. If it cannot be cooled effectively, It will lead to overheating of the server and downtime; on the other hand, the outdoor air contains dust, or acidic compounds such as sulfur, which will cause damage to the server or wires. When the outdoor air quality in my country does not meet the requirements, the cooling mode The direct contact heat exchange method cannot be used, that is, the natural cold source of outdoor air cannot be directly used

In addition, the wet bulb temperature of the outdoor air is lower than the dry bulb temperature, and the temperature difference between the wet bulb temperature and the outdoor dry bulb temperature air is compared, the temperature difference increases, the heat exchange effect is enhanced, and more outdoor cooling can be taken away. The utilization time of outdoor natural air cooling source will increase

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