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Refrigeration system performance test mode design method used for fault prediction and health management

A test mode and refrigeration system technology, applied in the field of testing, can solve problems such as dynamic changes and large differences, no load measurement means, and difficulty in realizing online testing of refrigeration performance, so as to ensure non-stop, create a worry-free user experience, and reduce Effect of operation and maintenance costs

Active Publication Date: 2018-04-20
CHINA AERO POLYTECH ESTAB +1
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  • Abstract
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  • Claims
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Problems solved by technology

Because the load is determined by the user's needs, it changes dynamically and varies greatly, and there is no feasible load measurement method, which makes it difficult to realize the online test of cooling performance

Method used

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  • Refrigeration system performance test mode design method used for fault prediction and health management
  • Refrigeration system performance test mode design method used for fault prediction and health management
  • Refrigeration system performance test mode design method used for fault prediction and health management

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Embodiment Construction

[0020] Exemplary embodiments, features, and aspects of the present invention will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0021] Take the refrigeration systems of refrigerators, freezers, and air conditioners as examples. The refrigeration systems use the circulation of refrigerants to perform heat exchange and transfer heat to the outside air to achieve the purpose of cooling.

[0022] figure 1 It is a flowchart of a refrigeration system performance test mode design method for failure prediction and health management according to the present invention, and its specific steps are as follows:

[0023] (1) Set the duration of the test mode maintenance in advance, and enter the start-up stage of the test mode...

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Abstract

The invention discloses a refrigeration system performance test mode design method used for fault prediction and health management. The method comprises three aspects of test mode starting time, refrigeration system operation state control and an operation mode. According to a user operation change condition, a product operation state and a start and stop state of a compressor, after the startingtime of a refrigeration system performance test is determined, state control is performed on components in a refrigeration system. In a normal operation mode, a work mode of a section of test is embedded. By using the method of the invention, refrigeration system performance can be monitored, diagnosed and predicted in real-time and on-line modes; health management is performed in advance, and therefrigeration system is ensured not to stop; a carefree usage experience is created and an intelligent level of a product is increased; simultaneously, operation and maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of testing, in particular to a method for designing a refrigeration system performance test mode for failure prediction and health management. Background technique [0002] Prognostics and Health Management (PHM) technology, as the key technology of the new generation of military equipment, has been highly valued and promoted at home and abroad. At present, with the rapid development of information technology and automation technology, the integration and complexity of modern industrial systems, such as aerospace, manufacturing, transportation and other industries, are getting higher and higher, the structure is very complex, and the connection between modules is very close , once a single component fails, it may cause a chain reaction, causing the entire system to fail to operate normally. [0003] Take refrigerators, freezers, and air conditioners as examples. Generally, after a fault occurs during operat...

Claims

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Application Information

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IPC IPC(8): G01M99/00
CPCG01M99/005
Inventor 蒋觉义曾照洋杨云司凯
Owner CHINA AERO POLYTECH ESTAB
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