Compression components of compressors, compressors and air conditioners

Abstract

A disclosed compression assembly of a compressor comprises cylinders, a lower flange below the cylinders, and a cover plate installed under the lower flange; the cylinders comprise a low-pressure cylinder, a medium-pressure cylinder and a high-pressure cylinder, and a medium separation plate and a lower separation plate are arranged between the low-pressure cylinder and the medium-pressure cylinder; a first mixing chamber is surrounded by the lower flange and the cover plate, and a second mixing chamber is surrounded by the medium separation plate and the lower separation plate; an air-exhausting chamber of the lower-pressure cylinder is communicated with an air-suction chamber of the medium-pressure cylinder via the first mixing chamber, and an air-exhausting chamber of the medium-pressure cylinder is communicated with an air-suction chamber of the high-pressure cylinder via the second mixing chamber; and the first mixing chamber and the second mixing chamber are respectively communicated with a first enthalpy-increasing part and a second enthalpy-increasing part. The above compression assembly has relatively high workability and reliability when being at a low-temperature work condition. The invention also discloses the compression possessing the above compression assembly and an air conditioner possessing the compressor.

Description

technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to a compression assembly of a compressor. The present invention also relates to a compressor with the above-mentioned compression assembly and an air conditioner with the compressor. Background technique [0002] The compressor increases the pressure of the heat exchange medium through its compression components, so as to meet the working requirements of the heat exchange system. Compression components mainly include crankshaft, rollers and cylinders. The cylinder communicates with the liquid distributor of the compressor. The heat exchange medium flowing out of the liquid distributor enters the cylinder, and the crankshaft drives the rollers to roll in the cylinder to compress the heat exchange medium. . [0003] In the currently commonly used compression assemblies, the number of cylinders is usually one or two. Under normal working conditions, the above structure...

AI Technical Summary

Problems solved by technology

However, when the compressor is used in low-temperature conditions, the following situations will occur: due to the decrease in the specific volume of the refrigerant, the unit suction capacity of the compressor will decrease accordingly, resulting in a decrease in the heat exchange capacity of the compressor; After the unit suction capacity of the compressor is reduced, the lubrication and cooling effects of the compression components inside the compressor and the drive motor will become worse; the suction-to-exhaust pressure ratio of the compressor is relatively large, resulting in a high discharge temperature of the compressor. limit, larger leakage and frictional losses will occur in the compressor

The above factors will lead to poor performance and reliability of the compressor under low temperature conditions, which cannot meet the needs of users

[0004] In summary, how to solve the problem of poor performance and reliability of the compressor under low temperature conditions has become a technical problem to be solved urgently by those skilled in the art

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