Slide valve structure and screw compressor

Abstract

The invention provides a slide valve structure and a screw compressor, relates to the technical field of air conditioners, and solves the technical problem that an existing perfect circular slide valve structure is easy to generate circumferential deflection. The cross section of a slide valve body of the slide valve structure comprises a female side arc corresponding to the inner wall of a femalerotor cavity, a male side arc corresponding to the inner wall of a male rotor cavity and a self-locking section, and the self-locking section is composed of multiple lines, so that the slide valve body forms a polygonal prism-shaped anti-rotation structure, and the slide valve body does not rotate after being assembled to a shell of the screw compressor; deflection of the slide valve body is prevented, a limiting device does not need to be arranged, complexity of the structure is avoided, the cost of the screw compressor is controlled, and the reliability of the screw compressor is improved;and the radial size of the slide valve structure is greatly reduced after a perfect circle is changed into the multiple self-locking lines, so that the height or width size of the compressor is more compact.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a slide valve structure and a screw compressor. Background technique [0002] The slide valve is a very common adjustment mechanism in screw compressors, usually used for capacity adjustment of the compressor, or internal compression ratio adjustment of the compressor. like figure 1 As shown, the cross-sectional profile of the slide valve 02 usually includes a circular arc of the female and male rotor bores, that is, the projection of the curved surface of the rotor chamber. Theoretically, it is hoped that the curved surface (curved surface 011 of the inner wall of the male rotor cavity and curved surface 012 of the inner wall of the female rotor cavity) is completely consistent with the curved surface of the inner wall of the rotor cavity (the arc 021 on the positive side of the slide valve and the arc 022 on the negative side of the slide valve) to ensure the formatio...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a slide valve structure and a screw compressor, which can at least solve the technical problem that the perfectly circular slide valve structure in the prior art is prone to circumferential deflection.

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