Data center multi-stage cooling system based on natural cooling of cold tower

Abstract

The invention discloses a data center multi-stage cooling system based on natural cooling of a cooling tower, the tail end of the cooling system takes away heat of a server chip by using a liquid cooling unit, and meanwhile, a row-stage cooling module is used for eliminating heat diffused into a machine room environment. Compared with the traditional machine room air cooling technology, the multi-stage and mutually independent cooling mode not only can accurately take away heat of a chip heating source in the machine room, but also can maintain the environment temperature in the machine room within a reasonable and comfortable range. The cooling tower serves as a cold source in the whole-year cooling process of the data center, on one hand, cold water is provided for a liquid cooling server in a machine room, and on the other hand, the cooling efficiency of compression refrigeration and fluorine pump refrigeration used by a machine row-level cooling module is improved by fully utilizing exhaust air of the cooling tower in summer and transition seasons through a built-in condenser. Meanwhile, the double water distributors are arranged in the cooling tower and are respectively arranged above and below the condenser, so that the condenser can heat water entering the cooling tower only by switching a water pipe valve in winter, and the problem of freezing prevention of the cooling tower in winter is solved.

Description

technical field [0001] The invention relates to a multi-stage cooling system for a data center based on natural cooling of a cooling tower, in particular to the field of refrigeration and air conditioning of a data center. Background technique [0002] With the gradual increase in the number of cabinets and the corresponding capacity of the data center, the energy consumption and efficiency of the cooling system have become the focus of society. In order to improve the cooling efficiency of the server and fully reduce the TCO of the data center, liquid cooling technology has become an effective measure to solve this problem. After adopting the liquid cooling technology, all components of the data center can be naturally cooled throughout the year, and the power consumption of a single rack can exceed 30kW, which can greatly reduce the PUE. Using liquid cooling and supplementing traditional air cooling technology can not only meet the safety of mutual backup of refrigeration...

AI Technical Summary

Problems solved by technology

[0004] The data center needs year-round cooling, and the energy consumption of the air conditioning system is huge. The main reason is that on the one hand, conventional mechanical refrigeration systems cannot make full use of natural cooling sources in winter and transitional seasons; Closer to the cooling end of the chip to cool the cabinet

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