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Abnormality judgment method and device for air conditioning system

An air-conditioning system and abnormal judgment technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve problems such as safety hazards, monitoring and control, and compressor burnout, so as to avoid misjudgments and ensure Timeliness, the effect of improving accuracy

Active Publication Date: 2018-04-24
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the research on the reliability of the air conditioning system is mainly focused on the direction of fluorine deficiency in the air conditioner. The lack of fluorine in the air conditioner will cause the temperature of the compressor to be too high
However, in the actual use of the air conditioner, the blockage of the exhaust pipe valve will also cause the compressor to burn out. The existing technology cannot effectively monitor and control such problems, and there is a great potential safety hazard

Method used

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  • Abnormality judgment method and device for air conditioning system
  • Abnormality judgment method and device for air conditioning system
  • Abnormality judgment method and device for air conditioning system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0060] An air-conditioning system abnormality judging device is provided, which is used for judging the running state of the air-conditioning and performing corresponding control operations, so as to meet the reliability requirements of the air-conditioning system.

[0061] Such as figure 1 As shown, the device for judging the abnormality of the air conditioning system in this embodiment includes: a first temperature sensor 1 , a second temperature sensor 2 , a first judging unit 3 , a second judging unit 4 and a control unit 5 .

[0062] The first temperature sensor 1 is installed on the top of the air conditioner compressor to detect the temperature at the top of the air conditioner compressor; the second temperature sensor 2 is installed on the air conditioner compressor discharge pipe to detect the temperature of the air conditioner compressor discharge pipe .

[0063] The first determining unit 3 is connected to the first temperature sensor 1 and the second temperature s...

Embodiment 2

[0070] Such as figure 2 As shown, the device for judging abnormality of the air conditioning system in this embodiment further includes: a third temperature sensor 6 , a fourth temperature sensor 7 , a timing unit 8 , a third judging unit 9 and a reminder unit 10 on the basis of the above embodiment.

[0071] The third temperature sensor 6 is installed at the surface entrance of the evaporator of the air conditioner indoor unit for detecting the indoor ambient temperature of the air conditioner; the fourth temperature sensor 7 is installed on the coil of the air conditioner evaporator for detecting the evaporation temperature of the air conditioner. coil temperature.

[0072] The third temperature sensor 6 and the fourth temperature sensor 7 are connected to the second judging unit 4. In this embodiment, the second judging unit 4 judges whether the air conditioner satisfies Fluoride deficiency conditions.

[0073] For example, Tc is set to represent the indoor ambient tempe...

Embodiment 3

[0079] A method for judging an abnormality of an air-conditioning system is provided, and the method is realized by the apparatus for judging an abnormality of an air-conditioning system in the above-mentioned embodiment. Such as image 3 As shown, the method for judging the abnormality of the air conditioning system in this embodiment includes the following steps:

[0080] S110: Detect the top temperature Ta of the compressor, the temperature Tb of the discharge pipe of the compressor, the ambient temperature Tc of the room where the air conditioner is located, and the temperature Td of the evaporator coil when the air conditioner is running.

[0081] S120: Set a plurality of preset conditions according to the corresponding relationship between the relationship between Ta and Tb and the operating state of the air-conditioning system, and sequentially determine whether the relationship between Ta and Tb satisfies the preset conditions.

[0082] S130: Set the fluorine deficien...

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Abstract

The invention provides an abnormality judgment method and device for an air conditioning system. The method comprises the steps: setting at least one preset condition according to the corresponding relation between the relation of the temperature Ta of the top of a compressor and the temperature Tb of the exhaust pipe of the compressor and the operating state of the air conditioning system; detecting Ta and Tb, and judging the state of the air conditioning system according to the relation between Ta and Tb. The invention provides the abnormality judgment device for the air conditioning systemfor realizing the method at the same time. The method judges whether the air conditioning system is in an abnormal state or not according to the change of the temperature of the top of the air condition compressor and the temperature of the exhaust pipe of the compressor, thereby meeting the reliability requirement of the air conditioning system.

Description

technical field [0001] The invention relates to the technical field of air-conditioning control, in particular to a method and device for judging abnormality of an air-conditioning system. Background technique [0002] With the development of the air-conditioning industry, users have put forward higher requirements for the reliability of the air-conditioning system. In the prior art, the research on the reliability of the air-conditioning system mainly focuses on the fluorine deficiency of the air conditioner, and the fluorine deficiency of the air conditioner will cause the temperature of the compressor to be too high. However, in the actual use of the air conditioner, the blockage of the exhaust pipe valve will also cause the compressor to burn out. The existing technology cannot effectively monitor and control such problems, and there is a great potential safety hazard. Contents of the invention [0003] In view of this, the present invention aims to provide a method a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/89F24F11/00F24F110/10
Inventor 陈东黄春刘合心
Owner NINGBO AUX ELECTRIC