Method for regulating and controlling freezing ability of fixed-frequency freezing air-conditioning ice-water system

Abstract

The invention relates to a method for regulating and controlling the freezing ability of a fixed-frequency freezing air-conditioning ice-water system. The method comprises the following steps of: controlling the quantity of compressors which participate in operation in a fixed-frequency ice-water main machine by using temperature buffering differences of individual requirement ends to make the utilization rate of each compressor during operation approximate to 100 percent; respectively defining a plurality of operating programs for different freezing ability requirement ends to make the operating programs respectively have corresponding high-temperature-low-temperature intervals which are individually defined; and re-distributing supply periods in which the fixed-frequency ice-water main machine supplies the freezing ability to the freezing ability requirement ends or starting periods of the fixed-frequency ice-water main machine by using temperature buffering strips of different operating programs to make the compressors operate in the fixed-frequency ice-water main machine in a concentrated starting mode, so an effect of saving energy and electricity is achieved.

Description

technical field [0001] The invention relates to a method for regulating the freezing ability, in particular to a method for regulating the freezing ability of a fixed-frequency freezing AC ice-water system (the freezing ability of a fixed-frequency freezing AC ice-water system). Background technique [0002] Generally speaking, most of the demand-side equipment (such as air conditioners, central air-conditioning systems, freezers, refrigerators, etc.) that business places or office units with temperature control requirements require considerable power output and cooling effect, generally Separate mainframes can be inefficient or cost prohibitive. Therefore, most of the demand-side equipment used in most business places are designed to be connected to the chilled water main unit at the same time, so as to use the heat exchange between the chilled water host and the demand-side equipment to achieve temperature control requirements. For example, the refrigerated cabinets insta...

AI Technical Summary

Problems solved by technology

However, since the trend of global warming is becoming more and more obvious, and the configuration of the fixed-frequency chilled water main unit with multiple compressors has been in operation for many years, only the fixed-frequency chilled water main unit with multiple compressors can increase the supply volume The characteristic of adjusting the number of compressors involved in the operation of the total amount achieves the effect of saving energy, which has gradually been unable to meet the huge demand for energy saving and carbon reduction brought about by the social trend and the improvement of environmental protection awareness

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