Compressor with air supplementing pressure drop reducing effect and refrigerating unit

Abstract

The invention provides a compressor with an air supplementing pressure drop reducing effect and a refrigerating unit. The compressor comprises a shell, a compression cavity is formed in a shell, and the shell is provided with an air supplementing cavity. According to the compressor with the air supplementing pressure drop reducing effect and the refrigerating unit provided by the invention, the shell is directly provided with the air supplementing cavity, the problems that in the prior art, an air supplementing pipeline is additionally provided with a buffering tank so that vibration caused bythe air supplementing pipeline can be reduced, and in addition, the unit cost and size are increased are solved; the unit structure is effectively simplified, and the unit cost is reduced; meanwhile,the diameter of through holes is decreased, the communication duration and communication area of adjacent tooth grooves are decreased, accordingly, gas leakage of the adjacent tooth grooves is relieved, the purposes of reducing pressure pulsation and pressure drop are achieved, the volumetric efficiency of the compressor in the compression process is improved, and the efficiency of the compressorand the efficiency of the refrigerating unit are improved.

Description

technical field [0001] The invention relates to the technical field of compression devices, in particular to a compressor and a refrigerating unit with the effect of reducing the supplementary pressure drop. Background technique [0002] During the operation of the refrigeration unit under some working conditions, a part of the refrigerant will absorb heat through expansion and evaporation to cool another part of the gaseous refrigerant, and then enter the middle stage of compressor compression to continue circulation, and the cooled refrigerant obtains a higher supercooling temperature, the exhaust temperature is reduced, the cooling capacity is increased, and the application range of the refrigeration unit is also broadened. At present, during the operation of the refrigeration unit, the refrigerant after evaporation and heat exchange passes through the air supply pipeline of the unit and the air supply hole of the compressor. It enters the rotor slot in the compression pr...

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Problems solved by technology

[0003] In order to solve the technical problem of the pressure drop caused by the connection of the air supply hole in the existing compressor air supply process, a method of setting the air supply chamber and reducing the diameter of the communication hole connected to the compression chamber on the premise of ensuring the air supply effect is provided. Compressors and refrigeration units with the effect of reducing the pressure drop

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