Centripetal type compressor

Abstract

The invention provides a centripetal type compressor. The centripetal type compressor is characterized in that the compressor comprises an axially symmetrical rotary shaft, a housing body, axially symmetrical wheel discs, multiple groups of axially symmetrical movable blade lattices, multiple groups of axially symmetrical static blade lattices, and a sealing body. The rotary shaft is used for fixing and driving the wheel discs to rotate. The housing body comprises an air charging volute and an air discharging volute, which are axially symmetrically arranged. The wheel discs are capable of rotating around a central shaft. One end of each movable blade lattice is fixed on one wheel disc, and the other end is rotatably embedded into the housing body via a movable blade shroud ring and id driven to rotate by the wheel disc so as to drive air flows to move. One end of the static blade lattice is fixed on the housing body and the other end rotatably embedded into the housing body via a static blade shroud ring. The sealing body used for preventing air leakage is arranged at a joint of the rotary shaft and the housing body. The movable blade lattices and the static blade lattices are alternatively arranged in the radial direction of the rotary shaft and one group of the static blade lattices is closest to the rotary shaft. Each of the movable blade lattices and each of the static blade lattices are straight blades. The shape of cross section of each of the straight blades is invariable in the height direction of the blade.

Description

technical field [0001] The invention relates to the field of impeller machinery, in particular to a multi-stage centripetal air compressor with two-way air outlet. Background technique [0002] The impeller compressor is mainly divided into axial flow type and radial flow type. [0003] The shape and flow characteristics of the axial flow compressor are suitable for use in the multi-stage compression process. Its structure is complex, the axial dimension is long, and the stable working range is small. Compared with the axial flow compressor, the radial flow compressor has a simpler structure, smaller weight and volume, and can maintain high efficiency in a wide operating range. It is widely used in the fields of vehicles, ships, some industrial compressors and aviation compressors. There are a wide range of applications. [0004] Due to the different linear speeds of rotation at different radial positions in existing axial flow compressors, twisted blades must be used. Eve...

AI Technical Summary

Problems solved by technology

[0007] Common centrifugal compressors cause a large axial force due to their single-ended air intake, which requires a large bearing force to balance and increase manufacturing costs; there is a gap between the top and wall of the existing centrifugal compressor blades, so it will gap loss

In the existing centrifugal compressor motor, only one end of the vane is fixed, and the other end is exposed, so large vibrations will be generated during the rotation process, increasing the instability of the system

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