SU1021822A1 - Centrifugal compressor - Google Patents

Abstract

CENTRIFUGAL COMPRESSOR, containing successively installed "; .id; Driving along the course of gas, an impeller with main and top disks and blades placed between them, - a bezlopochaty diffuser with side walls adjacent to the disks, a rotary knee with a half-open scapular grating and axially symmetrical ) the reverse guide channel, bounded on at least one side of the back surface of the disk, is about the fact that, in order to reduce the metal / capacitance, the main disk fell in one piece with rimykayuschey thereto a side wall and an inner diffuser Bypassed knee.

Description

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This invention relates to a compressor industry.

Known centrifugal compressor containing sequentially installed along the course of the gas impeller with the main and covering disks and blades placed between them, bezlopatochny diffuser with side walls adjacent to the disks, and a rotary knee fl.

The disadvantage of this compressor is low efficiency,:.

The closest in construction to the invention is a compressor containing an impeller successively installed in the course of gas with main and covering disks and blades placed between them, a bezlopochateny diffuser with side walls adjacent to the disks, a rotary elbow with a half-open scapular grating located in it and axisymmetric return guide channel 2}.

A disadvantage of the known compressor is a significant metal container.

The aim of the invention is to reduce the metal intensity of the compressor.

The goal is achieved by the fact that in a compressor containing an impeller sequentially installed along the gas with the main and covering disks and blades placed between them, a bezlopochatochny diffuser with side walls adjacent to the disks, a bend with a half-open scapular grate located in it and axisymmetric return the guide channel, bounded on at least one side of the back surface of the disk, the main disk is made in one piece with the adjacent side wall of the diffuser and inner contour of the knee. S. FIG. 1 shows a compressor with a return channel bounded by the surfaces of both disks, a longitudinal section; in fig. 2 shows an embodiment of a compressor,

0 The compressor contains the impeller 1 in series with the main flow and with the main impeller. blasting discs 2 and 3 and paddles 4 placed between them, an impeller-free diffuser 5 with side walls 6 and 7 adjacent to discs 2 and 3 and made in one piece, a bend 8 with a half-open scapular grating 9 inside it 10 of which is also made in one piece with the main disk 2, and the axisymmetrical reverse blade guide channel 11 (Fig. 2),

5 bounded on one side by the dorsum of the main disk 2 12, or bezlopokatochny (fig. 1) bounded by the dorsum surfaces 12 and 13 of the disks

0 2 and 3 on both sides.

When the compressor is operated in wheel 1, energy is supplied to the gas, the kinetic part of which is converted into diffuser 5 into pressure. Then, through the bend 8 and the return duct 11, the gas is directed to the wheel of the next stage.

The reduction in metal consumption of the compressor is achieved by eliminating partially or completely massive diaphragms from the design.

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Claims (1)

A CENTRIFUGAL COMPRESSOR containing an impeller sequentially installed along the gas path with the main and cover disks and vanes located between them, a bezlapless diffuser with side walls adjacent to the disks, a rotary elbow with a half-open vanes located in it, and an axisymmetric reverse guide channel, limited at least on one side by the back surface of the disk, characterized in that, in order to reduce the metal consumption, the main disk is made * · not in one piece adjacent to th side wall of the diffuser and the inner knee Bypassed.