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Refrigerant leakage detection method and system of air conditioner and air conditioner

A leak detection and air-conditioning technology, applied in heating and ventilation control systems, heating and ventilation safety systems, mechanical equipment, etc., can solve the problems of poor reliability of test results, affecting the safety and reliability of air conditioning, and prone to misjudgment, etc. Achieve the effect of improving safety and reliability, avoiding performance degradation of air conditioners, and reducing potential safety hazards

Active Publication Date: 2020-01-21
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +2
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  • Application Information

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Problems solved by technology

[0004] Leakage is detected by means of ambient temperature, heat exchanger coil temperature, etc. The reliability of the detection results is poor, and misjudgment is prone to occur, thus affecting the safety and reliability of the air conditioner

Method used

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  • Refrigerant leakage detection method and system of air conditioner and air conditioner
  • Refrigerant leakage detection method and system of air conditioner and air conditioner
  • Refrigerant leakage detection method and system of air conditioner and air conditioner

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Embodiment Construction

[0029] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0030] The refrigerant leakage detection method and system for an air conditioner and the air conditioner according to embodiments of the present application will be described below with reference to the accompanying drawings.

[0031] figure 1 It is a flowchart of a method for detecting refrigerant leakage of an air conditioner according to an embodiment of the present application. Such as figure 1 shown, combined with figure 2 According to an embodiment of the present application, a method for detecting r...

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Abstract

The invention provides a refrigerant leakage detection method and system of an air conditioner and the air conditioner. The refrigerant leakage detection method of the air conditioner comprises the following steps that a pressure threshold value corresponding to a low value in the indoor temperature and the outdoor temperature is obtained; the difference value between the pressure threshold valueand the actual pressure is calculated; and if the difference value is smaller than a preset value, after the air conditioner runs for preset time, whether a refrigerant of the air conditioner leaks ornot is determined according to the change trend of the condenser pressure, the exhaust temperature and the running current. According to the refrigerant leakage detection method of the air conditioner, whether the refrigerant of the air conditioner leaks or not can be accurately and reliably judged, then the adverse effects that the performance of the air conditioner is reduced, and a compressoris damaged due to refrigerant leakage are avoided, and the safety and reliability of the air conditioner are improved.

Description

technical field [0001] The present application relates to the technical field of refrigeration equipment, in particular to a refrigerant leakage detection method and system for an air conditioner and an air conditioner. Background technique [0002] Leakage of the refrigerant (refrigerant) of the air conditioner not only affects the cooling and heating levels of the air conditioner, but also poses safety hazards. For example, for flammable refrigerants, if there is too much leakage, it may catch fire and pose a safety hazard. Therefore, it is necessary to detect refrigeration Whether the agent has leaked. In related technologies, whether there is leakage can be detected by means of ambient temperature, heat exchanger coil temperature and other means. [0003] The following technical issues exist: [0004] Leakage is detected by means of ambient temperature, heat exchanger coil temperature, etc. The reliability of the detection results is poor, and misjudgment is prone to o...

Claims

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Application Information

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IPC IPC(8): F24F11/36F24F11/64F24F110/12F24F140/12
CPCF24F11/36F24F11/64F24F2110/12F24F2140/12
Inventor 黎辉玲李廷勋杜顺开
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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