Automatic control method based on water-cooled air conditioner internal unit

Abstract

The invention discloses an automatic control method based on a water-cooled air conditioner internal unit. The automatic control method comprises the steps as follows: (1) initializing a control system; (2) setting initial values of an automatic loading system, wherein the initial values include an initial temperature value, an initial internal unit fan speed value and an initial solenoid valve opening value; (3) collecting the air outlet temperature in real time and detecting the internal unit fan speed and the solenoid valve opening degree; (4) judging if the air outlet temperature is equal to the initial temperature value, if so, going to the step (5), if not, adjusting the internal unit fan speed and the solenoid valve opening degree for an internal unit freezing water gap according to difference values, determining adjustment ranges, and adjusting until the air outlet temperature is equal to the initial temperature value; and (5) adjusting according to the step (4), drawing a curve chart and displaying through a display device. According to the automatic control method, the energy consumption for conditioning an equipment environment under the same heat load change in a water-cooled air conditioner unit is reduced, the proportion of energy consumption of air conditioner equipment in total energy consumption of a machine room is reduced, the PUE (Power Usage Efficiency) value of the machine room is reduced, and the energy-saving effect is improved.

Description

technical field [0001] The invention relates to the field of computer control, in particular to an automatic control method based on a water-cooled air conditioner internal unit. Background technique [0002] With the continuous improvement of the informatization level of the entire society today, the demand for data centers is increasing; at the same time, with the popularization and application of blade servers, virtualization, cloud computing and intelligent control technologies, the density of IT equipment and business in a limited space Both are increasing, followed by the gradual increase of electricity load and the continuous increase of heat flux. As a centralized cooling source for data center (computer room) air conditioning, chilled water systems have higher cooling efficiency, less concentrated equipment, more stable operation, and lower failure rates and maintenance costs than independent direct expansion air conditioning systems. Chilled water air conditioning...

AI Technical Summary

Problems solved by technology

The terminal air is the first medium for the heat transfer of the equipment. Through the heat exchange of the evaporator, the heat is transferred to the refrigerant of the air conditioning system—chilled water. The frozen water is the second conduction medium. There is a lag in the timeliness of adjusting the first medium, which makes this method unable to achieve the best effect of energy saving and consumption reduction

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