Container data center cooling system and operation strategy thereof

Abstract

The invention discloses a container data center cooling system and an operation strategy thereof, and belongs to the technical field of energy conservation. The system comprises a box body inner water cooling circulation module, a fresh air natural cooling module, a hot water tank, a sky radiation refrigeration module, a water side natural cooling module, a cold water tank, a steam compression refrigeration module, a water storage tank, a first electromagnetic three-way valve, a second electromagnetic three-way valve, a first three-way connector and a second three-way connector. According to the container data center cooling system, the sky radiation refrigeration technology is combined into the container data center cooling system, the coupling condition of multiple cold sources is considered, scientific integrated optimization design is conducted on wide-area all-weather application of the container data center cooling system, and the temperature sensors, the flow meters, the valves and the bypass pipelines are additionally arranged, so the operation conditions are monitored in real time, cooling modes are flexibly switched according to internal and external parameters of the system, natural cold sources are fully utilized, refrigeration energy consumption is reduced, and energy and economic benefits are improved. Meanwhile, flexible movement and rapid construction and installation capability of the container data center are ensured.

Description

Technical field [0001] The present invention belongs to the field of energy saving technologies, and specific relates to a container data center cooling system and its operating strategies. Background technique [0002] At present, the most common data center naturally cooled is naturally cooled by the wind side and the water side, but the problem of direct air cooling in the outdoor air quality is poor, and the indoor air quality is more difficult to meet the requirements. Indirect air-cooled investment is relatively high, low heat exchange efficiency, and large space. Direct water is often required to be in areas where the data center is rich in water, and the environmental impact of waste heat wastewater is needed. Indirect water is most common, but it is not very feasible in the hot and arid areas, while the anti-freeze in the cold area is also the technical difficulty. Also, indirect water-cooled and combined with evaporative cooling wind side naturally cooling needs to cons...

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Problems solved by technology

However, the research on coupled sky radiative cooling as a natural cooling system for data centers is still relatively scarce at this stage.

[0005] In response to the above problems, Chinese patent CN109757078A provides a data center cooling system with a sky radiation refrigeration module, a phase change heat transfer device, supplementary cold storage and ventilation equipment, and its implementation method is to radiate the sky radiation through two two-position three-way valves. The refrigeration module, the refrigeration unit and the underground cold storage device are connected, and a heat exchanger connected to the available cold source is installed in the air duct to realize the free switching of cold storage, cooling, and cooling modes, and to make greater use of the natural cold source. However, its design It is complex and does not have the ability to quickly deploy and move flexibly. It is too coupled with natural cold sources but has not designed a perfect operation strategy, which makes its practical application difficult; Chinese patent CN211977127U proposes a combination of outdoor wind side heat exchangers and sky radiation The data center heat pipe air-conditioning system with refrigeration modules and cold storage equipment is implemented by connecting the evaporator with the outdoor heat exchanger or the sky radiation refrigeration module group through the gas collector, setting the cold storage tank behind the sky radiation refrigeration module, and controlling the module through PLC Controlled, the cooling range and intensity of the system are improved, but the cooling mode design and switching are not flexible enough, it is difficult to maximize the natural cooling source in complex meteorological conditions, and not setting the vapor compression refrigeration module may lead to unavailability in some occasions; Chinese patent CN112432275A proposes a new type of air conditioning system with cold storage device, water source heat pump, sky radiation cooling module, combined air conditioning box, and water side natural cooling equipment. The devices are associated and connected to two heat exchange coils to meet the heat exchange needs of the combined air conditioning box. The water source heat pump cooling can reduce the energy consumption of the air conditioning system with the help of energy storage devices and cooling towers, and at the same time can switch modes flexibly. However, the system is due to Considering the heating circuit, it is not very specific to the data center, and the natural cooling source on the water side and the natural cooling source on the wind side are not fully utilized. At the same time, the system does not radiate the sky. In special cases, the cooling capacity of the cooling module is too low or too high planning for the operation of

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