Air conditioning system and abnormal detection method in heating state of air conditioning system

An air-conditioning system and anomaly detection technology, which is applied in the control input, heating method, space heating and ventilation related to air characteristics, etc., and can solve the problem of detection scheme without refrigerant anomaly.

Active Publication Date: 2019-04-02
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Claims
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Problems solved by technology

[0003] The existing abnormal detection of refrigerant leakage is aimed at the abnormal detection of refrigerant in the cooling state, and there is no detection scheme that can effectively and accurately detect the abnormal refrigerant in the heating state

Method used

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  • Air conditioning system and abnormal detection method in heating state of air conditioning system
  • Air conditioning system and abnormal detection method in heating state of air conditioning system
  • Air conditioning system and abnormal detection method in heating state of air conditioning system

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Embodiment Construction

[0036] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The present invention proposes an abnormality detection method in the heating state of the air-conditioning system, which is applied in the air-conditioning system to judge the abnormality of the air-conditioning system according to the change rate of the coil temperature of the outdoor heat exchanger and the operating frequency of the compressor, and then When an abnormality is judged, timely measures are taken, such as prompting the user, calling the police, or even shutting down the air conditioning system, etc. Abnormalities of the air conditioning system may include: system pressure is too high or too low, poor heat dissipation, motor damage and so on. Because the air conditioning system uses the flow of refrigerant to transfer energy, so as to achieve the effect of cooling or heating. Therefore, in order...

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Abstract

The invention discloses a detection method of abnormity of an air conditioning system in the heating state. The detection method comprises the steps of obtaining the change rate of the temperature of a coil of an outdoor heat exchanger during the preset running period of an air conditioner compressor; obtaining the running frequency of the compressor; and when the change rate of the temperature of the coil of the outdoor heat exchanger is smaller than a first preset change threshold value, and the running frequency of the compressor is larger than a preset frequency threshold value, confirming that the air conditioning system is abnormal. The invention further discloses the air conditioning system. The abnormity of the air conditioning system in the heating state is accurately judged.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to an air conditioning system and an abnormal detection method in the heating state of the air conditioning system. Background technique [0002] The air-conditioning system uses the cold medium to exchange heat in the circulation pipeline to heat up or cool down the air in the space. Therefore, to ensure the smooth operation of the air conditioning system, it is necessary to detect abnormalities in the air conditioning system during the operation of the air conditioning system, such as whether there is leakage of refrigerant, whether there is excessive refrigerant, whether the motor is damaged, and so on. [0003] Existing abnormality detection of refrigerant leakage is aimed at detection of refrigerant abnormality in cooling state, and there is no detection scheme that can effectively and accurately detect refrigerant abnormality in heating state. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/32F24F11/64F24F11/88
CPCF24F11/30F24F11/62F24F11/70F24F2110/10
Inventor 胡超
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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