Control method for automatically adjusting set water temperature of water chilling unit

Abstract

The invention relates to a control method for automatically adjusting the set water temperature of a water chilling unit. The control method comprises the steps that the environment temperature is divided into a plurality of environment temperature intervals, one day is divided into a plurality of time intervals, and a corresponding water temperature set value is set for each time interval in each environment temperature interval; the actual environment temperature and the actual time are measured; an environment temperature interval in which the measured actual environment temperature falls is selected from the environment temperature intervals, and a time interval in which the measured actual time falls is selected from the time intervals; and based on the selected environment temperature interval and time interval, the water chilling unit automatically selects the corresponding water temperature set value. According to the control method, the water temperature set value of the water chilling unit can be automatically adjusted according to the change of the environment temperature, so that energy consumption can be saved, manual operation is reduced, user experience is enhanced, and intelligent control over the water temperature is achieved.

Description

technical field [0001] The invention relates to a method for controlling an air conditioning system, in particular to a control method for automatically adjusting the set water temperature of a chiller. Background technique [0002] Chillers, which can be a type of central air conditioner, conduct heat through water (called brine), including but not limited to water-cooled chillers and air-cooled chillers. Chillers can use a vapor compression refrigeration cycle (for example using a screw or scroll compressor) or an absorption refrigeration cycle. Chillers using a vapor compression refrigeration cycle first use a refrigerant (such as Freon or other substitutes) to cool (refrigerate) or heat (heat) water to a certain temperature (called "water outlet temperature" or "water supply temperature"); The cooled or heated water is sent to the heat exchange coil of the central air conditioning system to cool or warm the air; the cooled or heated air is then sent to the space that ne...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the technical problem that the setting of the water temperature of the chiller cannot be automatically adjusted according to the change of the ambient temperature, the present invention provides a control method for automatically adjusting the set water temperature of the chiller, The control method includes: dividing the ambient temperature into multiple ambient temperature intervals, dividing a day into multiple time intervals, and setting a corresponding water temperature set value for each time interval in each ambient temperature interval; measuring the actual Ambient temperature and actual time; selecting an ambient temperature interval in which the measured actual ambient temperature falls in the multiple ambient temperature intervals, and selecting a time interval in which the measured actual time falls in the multiple time intervals; And based on the selected ambient temperature interval and time interval, the chiller automatically selects the corresponding water temperature set point

Images