A suction structure of a refrigeration compressor

Abstract

The invention discloses a suction structure of a refrigeration compressor. The suction structure is a connecting structure between a suction pipe of the compressor shell and a suction plate of the compressor, and comprises a suction muffler and a bellows, wherein the bellows is connected on the suction muffler or is in line contact with the suction muffler; the suction muffler comprises a suction pipe I, an expanding cavity, a suction pipe II and a sealed suction pipe of a resonator; the suction pipe I, the expanding cavity and the suction pipe II are in serial connection; the sealed suction pipe or the resonator is respectively connected with the suction pipes; the first resonating frequency of the cavity of the resonator or the sealed suction pipe is between 80-210Hz; both the first and second resonating frequencies of the cavities of the suction structure determined by the work frequency of the compressor are between 45-160Hz. According to the suction structure of the refrigeration compressor, the noise reduction and vibration damping are realized and the stable suction and pressure boost effect is achieved; the refrigeration performance of the refrigeration compressor is greatly improved and the suction structure can be stably and reliably implemented on specific process.

Description

technical field [0001] The invention relates to a suction structure applied to a fully enclosed refrigerating compressor, in particular to a connection structure of an airflow pipeline from a compressor suction pipe to a suction valve plate. Background technique [0002] Refrigeration performance and noise level are two important indicators to measure the performance of hermetic refrigeration compressors. Reasonable compressor suction structure design, including suction muffler, bellows, etc., can well reduce the noise generated by the compressor when suction, and can also have a good noise reduction effect on the noise of the valve plate beating the valve seat. But on the other hand, the use of a suction muffler will also increase the flow loss of the refrigerant suction port to a certain extent and reduce the overall performance of the compressor. Therefore, designing a reasonable compressor suction structure will help improve the overall performance of the compressor and...

AI Technical Summary

Problems solved by technology

The suction structure of the compressor designed according to this concept has a restrictive effect on the refrigeration performance of the compressor, and cannot effectively improve the refrigeration performance of the compressor. It is difficult to meet the development and research of high-efficiency compressors.

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