Machine room refrigerating system and air conditioner air volume adjusting and control method and device

Abstract

The invention discloses a machine room refrigerating system and an air conditioner air volume adjusting and control method and device and aims to allow the air volume of air conditioner fans to satisfy and fast match with equipment radiating requirements, increase the heat exchanging efficiency of the air conditioners and lower the energy consumption of a machine room. The machine room refrigerating system comprises at least one sensor corresponding to a sealed channel formed by two adjacent rows of equipment cabinet groups and a controller and is characterized in that the controller is connected with each sensor and each air conditioner; the controller acquires parameters for measuring the internal and external pressure difference of each sealed channel according to the sensing values ofthe sensors corresponding to the sealed channel, compares the parameters with a preset threshold to obtain a comparison result and adjusts rotation speed of the air conditioner fans corresponding to the sealed channel according to the comparison result.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a refrigeration system for a machine room, an air volume adjustment and control method and device for an air conditioner. Background technique [0002] With the vigorous development of mobile Internet, Internet of Things and cloud computing, the number and construction scale of data center are increasing rapidly. The sensible heat load of the computer room is relatively large, and continuous cooling operation is required throughout the year. According to statistics, the power consumption of the air conditioning system accounts for nearly one-third of the total power consumption of the computer room, which is a key factor affecting the energy consumption of the computer room. [0003] For a computer room that adopts closed cold / hot aisles for heat dissipation, a top sealing plate is installed on the top of the space formed between two adjacent rows of cabinet group...

AI Technical Summary

Problems solved by technology

[0004] The defect of the existing technology is that the air temperature of the air inlet / outlet of the air conditioner is easily affected by other parameters such as the water supply of the air conditioner, and at the same time, due to the hysteresis of the temperature, the adjustment of the rotation speed of the air conditioner fan will be delayed for a certain period of time, resulting in The air supply volume of the air conditioner fan is difficult to meet the heat dissipation requirements of the equipment

In addition, for the closed cold aisle, when the amount of cold air blown into the closed cold aisle by the air conditioner fan is less than the hot air blown into the closed hot aisle by the server fan, there will be a negative pressure in the closed cold aisle. , the hot air will enter the aisle through the air leakage port of the closed cold aisle, causing the temperature of the cold air in the aisle to rise, thereby reducing the heat exchange efficiency of the air conditioner and increasing the energy consumption of the equipment room

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