Air-conditioning unit, air-conditioning system, and fan operation method and device for air-conditioning unit

Abstract

The invention discloses an air-conditioning unit, an air-conditioning system, and a fan operation method and device for the air-conditioning unit, so as to improve the working reliability and energy efficiency of the data center air-conditioning system. The air conditioning unit includes a main control board, at least one refrigeration system, and a monitoring module for monitoring the air output information of the fan set for each fan of the refrigeration system. The main control board is connected with each of the fans and each of the monitoring The modules are connected, and are used to determine the minimum speed of the corresponding fan for suppressing backflow of the cold air flow according to the air output information of the corresponding fan when any refrigeration system fails or is in a standby state; and control the corresponding fan to work on the minimum speed.

Description

technical field [0001] The invention relates to the technical field of data center air conditioning, in particular to an air conditioning unit, an air conditioning system, and a fan operation method and device for the air conditioning unit. Background technique [0002] With the development of technologies such as the Internet and cloud computing, the number of high-density cabinets used in data centers (commonly known as computer rooms) is gradually increasing, the integration of equipment is getting higher and higher, power consumption is increasing, and the requirements for air conditioning are also increasing. tends to be larger. In addition, my country's data centers are developing rapidly, and the annual power consumption of data centers is also increasing rapidly. According to the "National Green Data Center Pilot Work Plan", the number of data centers in my country has exceeded 400,000, and the annual power consumption exceeds the electricity consumption of the whole...

AI Technical Summary

Problems solved by technology

[0004] However, in an air-conditioning system with closed hot and cold aisles, if a certain air-conditioning unit fails to shut down or a refrigeration system in a certain unit fails to shut down, then: in a possible situation, the fan of the failed air-conditioning unit will The high-speed operation causes a large amount of hot air to bypass directly to the cold aisle, which affects the safe operation of the server cabinet; in another possible situation, the fan of the faulty air conditioning unit will stop, resulting in cold air from the high static pressure The cold aisle flows back to the hot aisle with lower static pressure, resulting in wasted cooling capacity and increased energy consumption of the air conditioning system

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