Energy-saving control method and system for cold machine

An energy-saving control and cooling technology, applied in mechanical equipment and other directions, can solve the problems of energy waste and high cost, and achieve the effects of reducing energy waste, reducing cooling control costs, and improving accuracy.

Pending Publication Date: 2021-12-03
广州汇电云联互联网科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above problems, the existing technology often corrects the chilled water setting value of the chiller through the experience of the engineer or the historical data of the chilled water temperatur

Method used

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  • Energy-saving control method and system for cold machine
  • Energy-saving control method and system for cold machine
  • Energy-saving control method and system for cold machine

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] It should be understood that the step numbers used herein are only for convenience of description, and are not intended to limit the execution order of the steps.

[0049] It should be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an"...

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Abstract

The invention provides an energy-saving control method and system for a cold machine.The method comprises the steps that the current set value and the current actual measurement value of the chilled water temperature are obtained every other preset time period, and the difference value between the current set value and the current actual measurement value is calculated; according to the chilled water error value of the cold machine and the difference value, whether the current set value is adjusted or not is judged; if not, the current set value of the chilled water temperature is kept unchanged; and if yes, operation parameters of the cold machine are obtained, a water temperature correction value is calculated according to the operation parameters of the cold machine, and the cold machine is controlled to operate according to the water temperature correction value. wherein the operation parameters of the cold machine comprise the operation duration of the cold machine and the set range interval of the chilled water temperature. The water temperature correction value of the chilled water is calculated through the operation parameters of the cold machine, the cold machine is controlled to operate according to the water temperature correction value, the accuracy of calculating the water temperature correction value is improved, the control cost of the refrigerator is reduced, and energy waste is reduced.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning refrigerator control, in particular to a refrigerator energy-saving control method and system. Background technique [0002] The performance of the chiller in the central air-conditioning refrigeration system will decline with the use of time. The specific performance will be: the difference between the set value of the chilled water temperature of the chiller and the actual measured value of the chilled water temperature of the chiller is greater than the error value, for example : The set value of the chilled water temperature of the chiller is 7°C, and the error value is 1°C, while the actual measured value of the chilled water temperature of the chiller is 5°C. At this time, the difference between the actual measured value and the set value is greater than the error value, it is necessary to correct the set value of the chilled water temperature of the chiller so that the diff...

Claims

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Application Information

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IPC IPC(8): F24F11/46F24F11/64F24F11/70
CPCF24F11/46F24F11/64F24F11/70
Inventor 胡佳杨瑞谭江浩董海雷李申
Owner 广州汇电云联互联网科技有限公司
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