Compressor oil level detecting device, air conditioning system and compressor oil level detecting method

Abstract

The invention provides a compressor oil level detecting device, an air conditioning system and a compressor oil level detecting method. The compressor oil level detecting device comprises an oil level detecting tube (8) used for being communicated with an oil tank of a compressor (1), a first temperature detecting device (10), a throttling device (11), a second temperature detecting device (12) and a switching valve (9), wherein the connecting portion, used for being connected with the oil tank of the compressor (1), of the oil level detecting tube (8) is the position where the oil level needs to be detected, the first temperature detecting device (10), the throttling device (11) and the second temperature detecting device (12) are arranged on the oil level detecting tube (8), the throttling device (11) is located between the first temperature detecting device (10) and the second temperature detecting device (12), and the switching valve (9) is located on the oil level detecting tube (8). By means of the compressor oil level detecting device, it is ensured that the oil level of the oil tank of the compressor reaches or exceeds the detection oil level, the compressor is prevented from operating in the oil starvation state, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of compressor equipment, in particular to a compressor oil level detection device, an air conditioning system and a compressor oil level detection method. Background technique [0002] The refrigerant in the air conditioning system is compressed and circulated through the compressor. The parts inside the compressor are lubricated by lubricating oil, and the oil is stored in the oil pool of the compressor. When the oil level in the oil pool is too low, it will affect the lubrication of the compressor, and the compressor will run without oil, which will easily cause damage to the compressor. [0003] At present, the amount of oil in the oil pool of the compressor cannot be directly judged, and indirect detection methods are mainly used, such as judging by the discharge temperature or suction temperature of the compressor, but it is impossible to directly determine whether the oil pool is short of oil, that is...

AI Technical Summary

Problems solved by technology

When the oil level in the oil pool is too low, it will affect the lubrication of the compressor, and the compressor will run without oil, which will easily cause damage to the compressor

[0003] At present, the amount of oil in the oil pool of the compressor cannot be directly judged, and indirect detection methods are mainly used, such as the discharge temperature or suction temperature of the compressor to judge, but it is impossible to directly determine whether the oil pool is short of oil, that is, no feedback control

Therefore, it is inevitable that the compressor will run without oil, which will affect the service life of the compressor

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