RU1813928C - Centrifugal turbomachine - Google Patents

Abstract

Usage: in the field of compressor construction. SUMMARY OF THE INVENTION: the lid 2, on which the volumetric part is fixed, is convex, the diffuser blades 10 are mounted on a flap 11 located on the side of the lid 2 and fixed on the outer diameter. 1 ill.

Description

The invention relates to the field of compressor engineering and can be used to create high-speed compressor compressors.

The purpose of the invention is to simplify assembly work in the manufacture of a turbomachine.

The drawing shows a turbomachine.

The compressor has a housing 1, to which the cover 2 of the detachable part is bolted. On the cover 2 is mounted the housing 3 of the built-in electric motor. The rotor of the KOMR spring is integral and consists of the rotor 4 of the electric motor, shaft 5 and the cantilever impeller 6. The rotor rotates on bearings 7 and 8. The bearing 7 is placed in the hub 9. The diameter of the hub 9 is larger than the diameter of the rotor 4, which allows the rotor to be installed with a hub without disassembly. The outlet blade diffuser 10 is mounted on a flap 11, which is then bolted to the cover 2 by an outer diameter. The cover 2 is designed so that the axial distance from its surface to the wheel increases toward the center. The rotor undergoes dynamic balancing assembly with the hub 9 and standard bearings 7 and 8. In this form, a balanced rotor is installed in the compressor. The special shape of the cover 2 provides access to the bolts (in the drawing

0

5

not shown) which fasten the housing 9 to the motor housing 3. After that, the output diffuser 10 mounted on the shield 11 is mounted. Good dynamic balancing of the rotor on standard bearings ensures reliable operation at high speeds. The rigid attachment of the hub 9 also increases reliability and simplifies the design of the lubricant supply to the bearing 7. The one-piece rotor design allows the use of the impeller without a central hole, which significantly reduces stress in it at high speeds.

Claims (1)

SUMMARY OF THE INVENTION A centrifugal turbomachine comprising a housing with a cap on which a detachable portion including a housing is fixed an electric motor, an electric motor with a rotor installed in it, a shaft of which is placed in bearings and provided with a cantilever-mounted impeller at the end, characterized in that, for the purpose of simplification of assembly work when performing a turbomachine with a blade diffuser, the cover is convex, the diffuser blades are mounted on a flap located relative to the wheel from the side cover and fixed on the latter by the outer diameter.