Centripetal pressurizing air entraining device and system

Abstract

The invention relates to a centripetal pressurizing air entraining device and system. The centripetal pressurizing air entraining device comprises a pressurizing assembly and a wheel cover assembly connected with the pressurizing assembly. The pressurizing assembly comprises a plurality of centripetal pressurizing blades and a pressurizing runner face. The wheel cover assembly comprises a wheel cover runner face. The pressurizing runner face and the wheel cover runner face form a shrinkage-shaped pressurizing channel. The inlet section of the pressurizing channel is distributed in the radial direction of a rotor disc, and the outlet section of the pressurizing channel is distributed in the axial direction of the rotor disc. The pressurizing section of the pressurizing channel is suitable for pressurizing airflow. The pressurizing assembly is suitable for being connected with the disc center of the rotor disc. The centripetal pressurizing air entraining device can further pressurize airwhile conducting radial air drainage and reducing the on-way pressure loss, and the air entraining efficiency is improved.

Description

Technical field[0001]The invention relates to the field of aeroengines, in particular to a centripetal supercharging and bleed air device and system.Background technique[0002]With the continuous development of aero-engine technology, the working environment and pressure of high-temperature components have also increased. In order to ensure the reliability and life of components, new and efficient materials and efficient cooling technologies have been continuously applied. The high-efficiency cooling technology mainly cools and seals related parts by drawing high-pressure cooling gas from a certain stage of the compressor. Since the pressure drop and temperature rise along the way need to be considered during the bleed air process, it is particularly important to design an efficient bleed air path. It is difficult to design the bleed air structure inside the rotor disc cavity, so the design goal of the bleed air path is mainly to reduce the pressure loss during the bleed air process ...

AI Technical Summary

Problems solved by technology

However, in the process of radial bleed air, since the gas flows from a high radius to a low radius, the free vortex develops more violently, resulting in a greater pressure loss

In the existing design of the relevant bleed flow path, there are tube type, tube type and fin type, etc., and the bleed air device of the existing vortex reducer usually only has a common drainage function, and there is no compensation for pressure loss. low efficiency

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