Exhaust noise reduction structure, compressor and refrigeration equipment

Abstract

The invention provides an exhaust noise reduction structure, a compressor and refrigeration equipment. The exhaust noise reduction structure is used for exhaust noise reduction of the compressor and comprises an air cylinder seat, an outer ring silencer, an inner ring silencer and a silencing cover. An exhaust channel is formed on the air cylinder seat. The outer ring silencer is arranged on the air cylinder seat, the outer ring silencer is of a cylindrical structure, a first communicating structure is formed on the outer ring silencer, and the first communicating structure communicates with the exhaust channel; the inner ring silencer is of a cylindrical structure, the inner ring silencer and the outer ring silencer are eccentrically arranged, the inner ring silencer is mounted at the inner side of the outer ring silencer, a second communication structure is arranged on the inner ring silencer, the second communication structure is communicated with the exhaust channel, silencing cavities are formed at the inner side and the outer side of the inner ring silencer respectively, and the silencing cavities are communicated with the exhaust channel; and the silencing cover is used for covering the outer ring silencer and the inner ring silencer. Turbulence of high-pressure gas of the compressor is effectively reduced in a limited space through the novel exhaust noise reduction structure, pressure pulsation is more stable, the silencing frequency band is widened, and the purposes of vibration reduction and noise reduction are achieved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to an exhaust noise reduction structure, a compressor and refrigeration equipment. Background technique [0002] When the refrigerator uses a reciprocating compressor to work, the refrigerant is periodically sucked and discharged, resulting in pressure fluctuations, which arouse the vibration of the pipeline and the valve plate, resulting in noise. The intake noise of the compressor is caused by the pressure pulsation generated by the refrigerant in the suction pipe, and its fundamental frequency is related to the gas pulsation frequency and the rotation speed of the compressor. Exhaust noise is mainly caused by the pressure pulsation formed by the refrigerant in the exhaust pipe. In addition, the vibration of the whole machine when the compressor is running will cause the gas in the shell to resonate and radiate noise outward. [0003] At present, the methods to reduce the aer...

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Problems solved by technology

[0005] In view of this, the present invention provides an exhaust noise reduction structure, compressor and refrigeration equipment, which are at least used to solve the technical problem of high exhaust noise in the prior art, specifically:

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