Quality and regulation control method and system for chill station of central air conditioner

Abstract

The present invention relates to a quality regulation control method of central air-conditioning refrigerating station and its system. It belongs to a method for controlling operation of central air-conditioning refrigerating station and its system. Said system includes internal weather parameter monitoring portion, central air-conditioning system operation parameter monitoring portion, quality regulation control main machine, cold water machine unit control unit for controlling water supply temperature for refrigeration, cooling tower frequency conversion control unit for controlling cooling tower outlet temperature, refrigerating water pump frequency conversion control unit and cooling water pump frequency conversion control unit. Besides, said invention also provides the concrete steps of its quality regulation control method.

Description

technical field [0001] The invention relates to an energy-saving control method and system for central air-conditioning refrigeration station equipment, which is suitable for automatic control of central air-conditioning refrigeration stations and belongs to the application field of air-conditioning energy conservation. Background technique [0002] The main equipment of the central air-conditioning refrigeration station are chillers, chilled water pumps, cooling water pumps, and cooling towers. In the central air-conditioning system, the refrigeration station accounts for more than half of the overall energy consumption and is the focus of energy-saving work. [0003] The current energy-saving operation control of central air-conditioning refrigeration station equipment generally adopts the method of frequency conversion and speed regulation of chilled water pumps, cooling water pumps and cooling towers for energy-saving operation, while chillers often adopt the method of s...

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Problems solved by technology

[0004] Aiming at the deficiencies and defects of the prior art, the object and task of the present invention is to provide a method and system for controlling the quality of a central air-conditioning refrigeration station, that is, by establishing a system for controlling the chillers, cooling towers, chilled water pumps and cooling water pumps in the refrigeration station. The related control method and system, control the operation of chillers and cooling towers in the freezing station with variable water temperature (i.e. "quality" adjustment), control the operation of chilled water pumps and cooling water pumps with variable water volume (i.e. "quantity" adjustment), achieve quality and save electricity Energy consumption and the overall efficiency of the refrigeration station are the highest, so as to solve the problem of low energy-saving efficiency in the energy-saving control of the existing refrigeration station only relying on frequency conversion speed regulation

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