Anti-inversing device for two-stage compressor

Abstract

The invention relates to the technical field of compressor parts, in particular to an anti-inversing device for a two-stage compressor. The anti-inversing device comprises a main shell, a first-stage cavity and a second-stage cavity are formed inside the main shell, an air inlet runner communicated with the first-stage cavity is arranged on the left side wall of the main shell, and an air outlet runner communicated with the second-stage cavity is arranged on the outer wall of the lower end of the main shell. According to the anti-inversing device for the two-stage compressor, a fixing sealing frame internally provided with an elastic sealing cover is fixed inside an air conveying runner, a connecting limiting sheet on the right side of a through hole is transversely arranged on the fixing sealing frame to limit and control the sealing cover, after the air pressure reaches a certain degree, the connecting limiting sheet automatically turns over to enter a turnover containing groove, and therefore the exhaust air rate is increased; a flow slowing cavity internally provided with a metal piston is arranged on the right side of the second-stage cavity, and therefore the air and piston impact is greatly increased, damage of the inner wall is avoided, the service life is prolonged, the anti-inversing performance is greatly improved, and air flow flowing is more balanced.

Description

technical field [0001] The invention relates to the technical field of compressor components, in particular to an anti-reverse device for a two-stage compressor. Background technique [0002] A compressor is a power device that uses an internal combustion engine or an electric motor to compress atmospheric pressure gas into high-pressure gas and has airflow energy. In the natural gas transmission and distribution system, the compressor is used to compress the natural gas, increase the pressure or delivery capacity of the natural gas, and often use the compressor to transport the compressed gas to replace the impurities in the pipeline when cleaning the pipeline, so as not to block the pipeline. Therefore, the compressor is often compared to the heart of pipeline transportation. The current reciprocating compressor uses the movement of the piston mechanism to compress the gas. The piston mechanism has a large amount of movement and is easily damaged, resulting in a large mai...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, provide an improved anti-reverse device for the two-stage compressor, solve the problem that the current reciprocating compressor uses the movement of the piston mechanism to compress the gas, the piston The mechanism has a large amount of movement and is easy to be damaged, resulting in a large workload for compressor maintenance, limited anti-reverse performance, and easy to cause unbalanced gas flow

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