Automatic oil level maintaining system of compressor and control method of automatic oil level maintaining system

Abstract

The invention discloses an automatic oil level maintaining system of a compressor and a control method of the automatic oil level maintaining system. The system comprises a normal oil return mode andan auxiliary oil return mode, and when the lubricating oil liquid level monitored by a liquid level detection unit in real time is higher than the required liquid level, the system only starts the normal oil return mode; when the lubricating oil liquid level monitored by the liquid level detection unit in real time is lower than the required liquid level, the system starts the auxiliary oil returnmode, and after the lubricating oil liquid level monitored in real time rises to be higher than the required liquid level height, the auxiliary oil return mode is closed, and the normal oil return mode is started; a compressor body is ensured to maintain proper lubrication, sealing and cooling, and the lubrication performance and the operation reliability of the compressor body are improved.

Description

Technical field[0001]The present invention relates to the technical field of air-conditioning systems, in particular to an air-conditioning system with high comfort dehumidification operation.Background technique[0002]The existing rolling rotor compressor has few moving parts, has many advantages such as high reliability and high relative volumetric efficiency, and is widely used in the fields of household air conditioners and commercial medium and small air conditioners. However, the rolling rotor compressor is a type of positive displacement compressor. Its cylinder and rolling piston are very sensitive to wet compression. Therefore, it is required that the compressor intake cavity is all refrigerant gas and cannot be compressed with liquid, otherwise the compressor will be damaged. Parts such as cylinders and rotor pistons, which in turn lead to the scrapping of the compressor. On the other hand, oil film seals are required between the cylinder and the rolling piston, between the...

AI Technical Summary

Problems solved by technology

Because once the lubricating oil level drops below the minimum level, the lubrication system will not work normally, so the rolling rotor of the rolling rotor compressor or the scroll of the scroll compressor cannot be well lubricated, sealed and cooled , leading to problems such as wear or overheating of moving parts, which in turn leads to compressor cylinder or motor overheating and burning; in addition, too much lubricating oil entering the refrigeration system will cause the problem of reduced heat exchange efficiency of the heat exchanger

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