Exhaust pipe structure and compressor

Abstract

The invention provides an exhaust pipe structure and a compressor. According to the exhaust pipe structure, a gradual contraction section and a gradual enlargement section are arranged in an exhaust pipe in the air flow direction; through the arrangement of the gradual contraction section and the gradual enlargement section, an oil-gas mixture hits against the inner wall surface of the gradual contraction section of the exhaust pipe during the exhaust process, so that oil-gas separation can be realized; besides, the air flow gradually expands when passing through the gradual enlargement section to be uniformly exhausted from the exhaust pipe at last; compared with the conventional exhaust process, the exhaust pipe structure has the advantages that during the overall exhaust process the flow channel is obviously lengthened, the collision separation process is added, and the oil separation efficiency is effectively improved.

Description

technical field

[0001] The invention relates to the field of compressors, in particular to an exhaust pipe structure and a compressor. Background technique

[0002] At present, the structure of the screw compressor is relatively small, the internal space is compact, the flow field distribution at the exhaust end is uneven, and the flow path in some places is too short, resulting in the oil and gas being separated before they are completely separated, and the oil separation efficiency is relatively low. Because the oil separation efficiency is not high, the system needs to increase its oil return volume to ensure the stable operation of the compressor. The increase in the oil return volume will greatly affect the volumetric efficiency of the compressor, resulting in a decrease in the performance of the compressor. SUMMARY OF THE INVENTION

[0003] The present invention aims to provide an exhaust pipe structure and a compressor capable of improving oil separation efficiency....

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