Control system and method for noise reduction and precooling of air-cooled air conditioner outdoor unit and application

Abstract

The invention relates to a control system and method for noise reduction and precooling of an air-cooled air conditioner outdoor unit and an application. A precooling device of the air conditioner outdoor unit cools air entering the air conditioner outdoor unit in a latent heat cooling mode. Meanwhile, noise data of the air conditioner outdoor unit are detected, when the noise data are higher thanthe noise threshold upper limit, the air inlet amount of the air conditioner outdoor unit is reduced, and the water inlet amount of the pre-cooling device of the air conditioner outdoor unit is increased; and when the noise data are lower than the lower limit of the noise threshold, the air inlet amount of the air conditioner outdoor unit is increased, and the water inlet amount of the pre-cooling device air conditioner outdoor unit is reduced. Through combined adjustment of the air inlet amount and the water inlet amount, an air conditioner runs stably, noise reaches the standard, a high-temperature alarm of an air conditioner compressor is avoided, the control precision is high, cost is low, reliability is high, and the effect is remarkable. The noise of the air conditioner outdoor unitis detected, when the noise is higher than the threshold upper limit, the air inlet amount of the air conditioner outdoor unit is reduced, the water inlet amount of the precooling device of the air conditioner outdoor unit is increased at the same time in order to meet the enough refrigerating capacity, and therefore the noise of the air conditioner outdoor unit is lowered while the refrigeratingcapacity of the air conditioner is guaranteed.

Description

technical field [0001] The invention relates to the technical field of computer room air conditioners, in particular to a control system, method and application for noise reduction and precooling of an air-cooled air conditioner external unit. Background technique [0002] The growth rate of China's computer rooms has far exceeded expectations. The total number of various computer rooms in my country is about 430,000, which can accommodate more than 5 million servers. Among them, there are nearly 1,000 operating computer rooms, with an area of ​​about 900,000 square meters, about 177,000 cabinets, and can accommodate about 2 million servers. With the rapid development of cloud computing, my country's demand for computer room traffic processing capacity will increase by 7 to 10 times in the past five years, and the area of ​​the computer room needs to be doubled to meet the needs of cloud computing development. The total power consumption of my country's computer rooms has r...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the present invention provides a combined control method for noise reduction and precooling of the air-cooled air conditioner external unit, which increases the air-cooled air conditioner external unit while performing noise reduction treatment on the air-cooled external unit The air pre-cooling and cooling system solves the high temperature alarm phenomenon of the air conditioner external unit caused by the noise reduction measures

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