Oil return system of air-conditioning compressor and judging method of blockage of oil return pipeline

Abstract

The invention discloses an oil return system and oil return pipeline blockage judgment method of an air conditioning compressor. According to the oil return system and oil return pipeline blockage judgment method, pipeline blockage of an oil return pipeline can be effectively detected, and a temporary corresponding method and a preliminary fault diagnosis can be carried out after the oil return pipeline is blocked; a standby oil return pipeline is arranged, so that when a main oil return pipeline of the compressor is blocked, the compressor does not need to be shut down, the standby oil returnpipeline is enabled, and if a non-main oil return pipeline is blocked, whether an oil separator works normally or not can be judged in time after the standby oil return pipeline is enabled; and the oil return system and oil return pipeline blockage judgment method can effectively solve the problem of oil shortage of the compressor caused by capillary blockage, and the service life of the compressor is prolonged.

Description

technical field [0001] The invention relates to the technical field of detection of an oil return pipeline of an air conditioner compressor, in particular to an oil return system of an air conditioner compressor and a method for judging blockage of the oil return pipeline thereof. Background technique [0002] The oil return problem of the compressor in the air conditioning system has always been a common concern. During the operation of the air conditioner, the compressor exhaust will continuously take out the lubricating oil in it. If the lubricating oil cannot return to the compressor in time, the inside of the compressor will Lack of oil, severe oil shortage will damage the compressor and affect the normal use of the air conditioner. [0003] The existing technology is usually to connect an oil separator on the discharge side of the compressor, such as figure 1 As shown, the oil separator is connected to the suction side of the compressor through the oil return capillar...

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides an oil return system of an air conditioner compressor and a method for judging blockage of the oil return line, which can effectively detect blockage of the oil return line and temporarily deal with the blockage and preliminary fault diagnosis. The oil return line can not only detect whether the main oil return line is blocked, but also detect whether the oil separator is working normally, which can effectively solve the problem of compressor oil shortage caused by capillary blockage and improve the service life of the compressor

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