Energy-saving and efficient evaporative cooling air-conditioning system suitable for data center

Abstract

The invention discloses an energy-saving and efficient evaporative cooling air-conditioning system suitable for a data center, and the system comprises an indirect evaporative cooling unit, a data engine room connected to the indirect evaporative cooling unit through a return air pipe and a supply air pipe to form a circulation circuit, and a lithium bromide absorption chiller module connected tothe indirect evaporative cooling unit through a chilled water supply pipe and a chilled water return pipe to form a circulation loop. The energy-saving and efficient evaporative cooling air-conditioning system suitable for a data center provided by the invention combines the evaporative cooling with lithium bromide absorption refrigeration, the lithium bromide absorption chiller recovers a large amount of heat in the data room as a heat source, and produces cold water for auxiliary cooling and temperature reduction for the indirect evaporative cooling unit, a data engine room, thereby meetingthe annual cooling requirements of the data center with low energy consumption.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning equipment, and relates to an energy-saving and high-efficiency evaporative cooling air-conditioning system suitable for data centers. Background technique [0002] With the rapid development of data services and networks, the scale of data centers continues to expand, and the power consumption of data centers is also increasing. However, air conditioners, air supply systems, and environmental conditioning equipment consume the most power in data center computer rooms. It accounts for about 45% of the total computer room electric energy, so adopting an energy-saving cooling method is an urgent need for energy-saving and emission-reduction in data centers. [0003] From the perspective of energy saving, there are currently schemes that directly use the outdoor cold source—outdoor fresh air to cool the computer room, and indirectly use the outdoor cold source—the heat recovery of the runner ...

AI Technical Summary

Problems solved by technology

[0004] When outdoor fresh air is used as the cold source, in order to ensure the cleanliness of the fresh air, the unit needs to be equipped with a medium-efficiency filter and a chemical filter. Among them, the chemical filter is very expensive and cannot be cleaned and reused, resulting in very high unit investment and operating costs. Large; when using rotary heat recovery for natural cooling, since the rotary heat recovery air conditioner is too bulky, it is necessary to design a separate placement area for the rotary heat recovery air conditioner unit, which requires a large amount of on-site installation work and large construction investment; when using a chilled water system During natural cooling, the air conditioner needs to be equipped with an outdoor water tower, and the compressor can only be stopped when the outlet water temperature of the water tower is 2-5°C lower than the chilled water temperature (generally 7°C), and the cooling water of the water tower is used to directly cool the air conditioner However, since the temperature of the treated water is higher than 5°C in most of the year, the time period for direct use of outdoor natural cooling sources is short, and the energy saving is not large, and the pipeline is complicated when using the cold water system for natural cooling , a large workload of operation and maintenance

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