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Treating method and treating system for compressor oil return pipeline faults of air conditioning system

A technology of oil return pipeline and air conditioning system, applied in compressors, refrigerators, refrigeration safety arrangements, etc., can solve problems such as failure to remind users for inspection and maintenance, compressor failure, etc., to avoid compressor burnout and avoid oil return temperature. The effect of high detection value

Active Publication Date: 2015-06-24
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem in the prior art that the failure of the oil return pipeline is unknown and the user cannot be reminded to check and repair, which further leads to the failure of the compressor, the present invention provides an air conditioner that can easily and accurately judge and deal with the failure of the oil return pipeline of the compressor in the air conditioning system. Systematic compressor oil return pipeline fault handling method and system

Method used

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  • Treating method and treating system for compressor oil return pipeline faults of air conditioning system
  • Treating method and treating system for compressor oil return pipeline faults of air conditioning system
  • Treating method and treating system for compressor oil return pipeline faults of air conditioning system

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Embodiment 1

[0068] see figure 1 As shown, the present invention provides a method for processing the failure of the oil return pipeline of the compressor of the air conditioning system. When the air conditioning system is in the running state, the following steps are included:

[0069] An oil return temperature sensor is installed in the oil return line of the compressor between the capillary and the oil-gas separator to detect the oil return temperature;

[0070] According to the difference between the detected oil return temperature and the system parameter, it is judged that the oil return pipeline is faulty.

[0071] The method is simple and accurate to judge and deal with the failure of the oil return pipeline of the compressor of the air conditioning system, and solves the problem that the failure of the oil return pipeline cannot be known and the user cannot be reminded to check and repair, which further leads to the failure of the compressor; The oil return temperature sensor ana...

Embodiment approach

[0081] As an implementable mode, the following steps are also included:

[0082] When it is judged that there is a fault in the oil return line of the compressor, it will shut down for protection and / or report a fault.

[0083] When shutdown and / or failure occurs, the user can determine whether it is a blockage fault or an oil leakage fault based on judgment. If it is a blockage fault, check and repair the solenoid valve of the compressor oil return line. Check and repair the capillary of the oil return line of the compressor, and restart the machine after confirming that there is no problem.

[0084] As an implementable manner, before judging the failure of the oil return pipeline according to the detected difference between the oil return temperature and the system parameters, the following steps are also included:

[0085] Determine whether the compressor is running;

[0086] If the operation is started, it is judged whether the difference between the oil return temperatu...

Embodiment 2

[0130] Based on the same inventive concept, the present invention also provides a treatment system for the failure of the oil return pipeline of the compressor of the air conditioning system. Since the principle of solving the problem of this system is similar to the treatment method for the failure of the oil return pipeline of the compressor of the air conditioning system, Therefore, the implementation of the system can refer to the implementation of the aforementioned method, and the repetition will not be repeated.

[0131] The embodiment of the present invention provides a system for processing the failure of the oil return pipeline of the compressor of the air conditioning system, see Figure 4 As shown, including a compressor, with a discharge port and a suction port;

[0132] The oil-gas separator 30 has an inlet, an outlet and an oil return port;

[0133] The oil return line has a capillary;

[0134] One end of the oil return line is connected to the oil return port...

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Abstract

The invention provides a treating method and a treating system for compressor oil return pipeline faults of an air conditioning system. The treating method includes: arranging return oil temperature sensors at the positions, between capillary tubes and corresponding oil-gas separators, on compressor oil return pipelines so as to detect return oil temperature; judging the oil return pipeline faults according to difference value between detected return oil temperature and a system parameter. The treating method is simple, convenient and capable of accurately judging the compressor oil return pipeline faults of the air conditioning system and solving the problem of compressor failure caused by the fact that the oil return pipeline faults cannot be known and a user cannot be warned of inspection and maintenance; the return oil temperature sensors are arranged at the positions, between the capillary tubes and the corresponding oil-gas separators, on the compressor oil return pipelines, so that on one hand, each return oil temperature sensor is kept a distance from the corresponding oil-gas separator, and heat transfer caused by lubricating oil, in higher level, at the bottom of the oil-gas separators is prevented from resulting in an over-high detected value of the return oil temperature; on the other hand, the detected value of the return oil temperature is prevented from being affected by throttling effect of the capillary tubes, and the capillary tubes in different specifications can be adopted compatibly.

Description

technical field [0001] The invention relates to the technical field of air-conditioning systems, in particular to a method and a system for handling faults in oil return pipelines of compressors in the air-conditioning system. Background technique [0002] In the air conditioning unit of the prior art, the compressor continuously discharges the lubricating oil into the refrigeration cycle system along with the exhaust gas during operation. If the compressor cannot return oil normally, it will soon be caused by lack of oil. invalidated. In the prior art, the oil return pipeline is usually used to return the lubricating oil in the oil-gas separator to the suction port of the compressor for oil replenishment. The oil return pipeline is usually designed with filters, capillaries, solenoid valves, etc., and the capillary is for throttling Reduce the pressure to reduce the flow rate of lubricating oil (that is, reduce the flow rate), the solenoid valve is to control the on-off of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B31/00F25B49/02
CPCF25B31/004F25B49/02F25B2500/06F25B2700/2105F25B2700/21155
Inventor 焦华超熊建国余凯张仕强杨智峰张良罗立明周伟峰冯涛何珍
Owner GREE ELECTRIC APPLIANCES INC
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