A container data center cooling system and its operation method

Abstract

The invention discloses a container data center cooling system and its operation method, which belong to the technical field of energy saving. Including the water cooling circulation module in the box, the fresh air natural cooling module, the hot water tank, the sky radiation cooling module, the water side natural cooling module, the cold water tank, the vapor compression cooling module, the water storage tank, the first electromagnetic three-way valve, the second electromagnetic three-way valve A through valve, a first three-way joint and a second three-way joint. The invention combines the sky radiation refrigeration technology into the cooling system of the container data center, considers the coupling of various cold sources, and carries out a scientific integrated optimization design for the wide-area all-weather application of the cooling system of the container data center. Flowmeters, valves and bypass pipelines can monitor operating conditions in real time and flexibly switch cooling modes according to internal and external parameters of the system, making full use of natural cold sources, reducing cooling energy consumption and improving energy efficiency. At the same time, the flexible movement and rapid construction and installation capabilities of the container data center are guaranteed.

Description

Technical field [0001] The present invention is a energy -saving technology field, which involves a cooling system and its operating method of a container data center. Background technique [0002] At this stage, the most commonly used data centers are naturally cooling the wind side and the water side of the water, but the direct air cooling has the corrosion of IT devices when the outdoor air quality is poor. At the same time, it is difficult to meet the requirements of indoor air quality. The indirect and cold investment is relatively high, the heat exchange efficiency is low, and the space is large. Direct water cooling often requires data centers in areas with rich water sources, and the environmental impact of waste heat waste water is also required. Indirect water cooling is the most commonly used, but it is not feasible in hot and dry areas, and the anti -freezing of cooling towers in cold areas is also technical difficulty. In addition, the natural cooling side of indire...

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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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