A single screw compressor

Abstract

The invention discloses a single-screw compressor. The single-screw compressor comprises a compressor shell, a screw rotor and a slide valve, wherein the slide valve is arranged in a slide valve cavity in the compressor shell in a sliding manner; an exhausting cavity is formed in the compressor shell and comprises an inner cavity groove formed in the compressor shell and an exhausting hole formed in the slide valve cavity; the inner cavity groove is communicated with the slide cavity; at least one part, which is close to the slide valve cavity, of a first side wall of the inner cavity groove is inclined relative to the axis of the screw rotor, and the inclined direction is the same as the spiral direction of the screw rod; and the first side wall is close to an air suction side. The single-screw compressor provided by the invention can be used for reducing exhausting loss, particularly, the exhausting loss caused by the fact that the inner cavity groove is used for exhausting, under any load; and meanwhile, exhausting noises caused by the exhausting loss are reduced.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a single-screw compressor. Background technique [0002] When the single-screw compressor is working, there is often an exhaust loss in the initial stage of the exhaust, which causes the compressor to generate noise. In this regard, the patent document CN 201747603 U discloses a new type of energy-saving and noise-reducing exhaust triangular single-screw compressor, wherein, by setting the hypotenuse of the exhaust triangular opening on the inner wall of the compressor housing to be aligned with the crest of the helical groove of the screw The curves are perfectly matched, which reduces exhaust loss and reduces exhaust noise. However, this setting is only suitable for single-screw compressors without slide valve regulation. For a single-screw compressor with a slide valve, the slide valve can move along the axis of the screw. If it is ensured that the helix of the screw coi...

AI Technical Summary

Problems solved by technology

However, this setting is only suitable for single-screw compressors without slide valve regulation

For a single-screw compressor with a slide valve, the slide valve can move along the axis of the screw. If it is ensured that the helix of the screw coincides with the exhaust line of the exhaust chamber at a certain moment, then when the slide valve moves, the compression The exhaust line of the machine must change with the movement of the slide valve, so it cannot be guaranteed that the screw helix and the exhaust line can match under each load, so there must be a problem due to the difference between the exhaust line and the screw helix. Exhaust resistance and exhaust noise caused by matching

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