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Alarm method, device and terminal based on refrigeration unit performance alarm surface

A refrigeration unit and performance technology, applied in the direction of mechanical equipment, etc., can solve the problem of low accuracy and achieve the effect of high accuracy and improved accuracy

Active Publication Date: 2021-07-30
QINGDAO HISENSE TRANS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the accuracy of the existing alarm based on the alarm value is not high, the present invention proposes an alarm method, device and terminal based on the performance alarm surface of the refrigeration unit to improve the accuracy of the alarm

Method used

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  • Alarm method, device and terminal based on refrigeration unit performance alarm surface
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  • Alarm method, device and terminal based on refrigeration unit performance alarm surface

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Embodiment Construction

[0030] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0031] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicate...

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Abstract

Embodiments of the present invention provide an alarm method, device and terminal based on a refrigeration unit performance alarm surface. The embodiment of the present invention extracts the historical steady-state working conditions of the refrigeration unit based on the historical data of the refrigeration unit. Then, based on the performance coefficients under various historical steady-state conditions, the performance alarm surface is fitted. Since the performance alarm surface is obtained based on the data of the refrigeration unit in the actual operating environment, the accuracy is relatively high. The accuracy of alarming based on the high-accuracy performance alarm surface will also increase accordingly.

Description

technical field [0001] The present invention relates to the technical field of abnormal diagnosis of HVAC, in particular to an alarm method, device and terminal based on a refrigeration unit performance alarm surface. Background technique [0002] HVAC refrigeration units work under variable working conditions and variable loads for a long time, and their performance coefficients are affected by external factors such as load, ambient temperature, chilled water flow, cooling water flow, chilled water temperature, and cooling water temperature. [0003] When the refrigeration unit leaves the factory, the manufacturer will provide the alarm value of the performance coefficient of the refrigeration unit. During operation, if the coefficient of performance of the refrigeration unit is lower than the alarm value, an alarm will be triggered to remind the operation and maintenance personnel to eliminate the failure of the refrigeration unit or adjust the setting parameters in time. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/30F24F11/52F24F11/64
CPCF24F11/30F24F11/52F24F11/64
Inventor 牟磊王海胜万里刘见罗静刘东海
Owner QINGDAO HISENSE TRANS TECH