Suction muffler for compressor

Abstract

The invention discloses a suction muffler for a compressor, and belongs to the field of refrigeration compressor fittings. The suction muffler comprises a main housing and a housing cover, wherein the main housing is provided with a main housing suction chamber, a main housing gas inlet, a main housing sound-absorbing chamber, a main housing gas outlet interface and a filter screen; and the housing cover is provided with housing cover suction chambers and a housing cover sound-absorbing chamber. The suction muffler is characterized in that clamping plates are arranged in the main housing sound-absorbing chamber, an insertion plate groove is formed between the clamping plates in pair, a transition vent pipe and a gas guide pipe are formed at the upper part of the main housing sound-absorbing chamber, and a main housing vent pipe is formed at the lower part of the main housing sound-absorbing chamber; an insertion plate is formed in the housing cover sound-absorbing chamber, a housing cover gas inlet pipe is formed in the upper part of the housing cover sound-absorbing chamber, and a housing cover gas outlet pipe is formed at the lower part of the housing cover sound-absorbing chamber; and the filter screen comprises a filter screen body and a meshed frame, and the filter screen body consists of a base mesh and a side mesh. The suction muffler has the advantages that the sizes of the upper and the lower parts of the sound-absorbing chambers are increased, the path of the whole suction pipeline is increased and the suction resistance of the suction pipeline is reduced, resulting in high-efficiency operation of the refrigeration compressor; and the filtering area is greatly increased to prevent accumulation of foreign matters within a short period of time.

Description

technical field [0001] The invention belongs to the technical field of refrigeration compressor accessories, and in particular relates to a compressor suction muffler. Background technique [0002] As is well known in the industry, a hermetic refrigeration compressor usually has a suction muffler installed inside it. When the refrigeration compressor is working, the cylinder sucks refrigerant gas through the suction muffler. It weakens the heating effect of the refrigerant when the compressor is internally heated, and also reduces the noise and vibration caused by the pressure pulsation during the flow of the refrigerant gas, thereby helping to reduce the operating noise of the compressor and effectively improving the compressor's work. Efficiency, that is, to improve the energy efficiency ratio (COP) of the refrigeration compressor. It can be seen from this that the suction muffler is indispensable and one of the more important accessories of the current reciprocating herm...

AI Technical Summary

Problems solved by technology

However, due to the unreasonable structure of the filter screen, it is flat and arranged on the outlet pipe in a tiled manner, so the effective filtering area is limited.

Since the fully enclosed refrigeration compressor cannot be opened for maintenance, after the suction muffler works for a certain period of time, debris gradually accumulates on the filter screen, resulting in an increase in the resistance of the suction line, thereby reducing the operating performance of the compressor

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