A data center hybrid cooling system and its working method

Abstract

The invention provides a data center hybrid cooling system and a working method thereof, the system comprises a spray cooling subsystem, an absorption refrigeration subsystem and an electric power peak regulation and cold storage subsystem, and the spray cooling subsystem comprises a cooling water circulation assembly and a spray cooling terminal assembly; the absorption type refrigeration subsystem comprises an absorption type water chilling unit, a water cooling assembly and a tail end cooling device, and the absorption type water chilling unit is connected with the spray cooling subsystem;the electric power peak regulation and cold accumulation subsystem comprises a cold accumulation assembly which is communicated with an evaporator. According to the invention, the spray cooling systemis used for cooling an operation cabinet; the absorption refrigeration system is used for recycling waste heat of the spray cooling system; cold accumulation is achieved through the refrigerating capacity of an absorption refrigerator in a power valley period, and the storage cabinet is cooled through the refrigerating capacity of a cold accumulation system and the refrigerating capacity of the absorption refrigerator in the power peak period, so that power peak regulation is achieved, the cooling efficiency of the system is greatly improved, and the energy consumption and operation cost of the system are reduced.

Description

technical field [0001] The invention relates to the technical field of data center thermal management, in particular to a data center hybrid cooling system and a working method thereof. Background technique [0002] With the increasing demand for high-performance computing, the energy consumption and heating power of data centers have increased dramatically. Currently, data center electricity consumption accounts for 2% of the world's total electricity consumption, and the annual growth forecast is 15-20%. Among them, the power consumption of the cooling system accounts for 30-50% of the total power consumption of the data center, which leads to a very considerable waste heat emission and high operating costs. [0003] At present, data center cooling mainly adopts air cooling and water cooling. The cooling noise of the air-cooled unit is large, the cooling efficiency is low, and the energy consumption is high. The water-cooled cabinet uses chilled water and fan coils to c...

AI Technical Summary

Problems solved by technology

However, current approaches to power peak shaving for data center cooling systems are rare

[0007] To sum up, the current cooling methods of data centers have certain limitations. There is an urgent need to adopt new cooling methods to improve cooling efficiency, recover waste heat from the cooling system, reduce cooling power consumption, and develop new power peak-shaving operation methods to reduce cooling. system operating cost

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