Guide plate for axial flow compressor

Abstract

The invention provides a guide plate for an axial flow compressor. An air entraining hole is formed in the drum of the axial flow compressor to guide a part of air flowing through the stator blade ofthe axial flow compressor out; the root part of the guide plate is aligned with the boundary of the air entraining hole; and the point part of the guide plate is aligned with the airflow direction ofthe position of the air entraining hole to enable the air to enter the air entraining hole under the guidance of the guide plate.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to a deflector for an axial compressor. Background technique [0002] In the field of aero-engines and gas turbines, the axial-flow compressor, one of the main components, needs to extract a certain amount of gas from the main flow during actual operation to realize anti-puffing of the compressor, or to cool the turbine and bleed air for customers. Provide gas source. [0003] Under the current technical conditions, bleed air is mainly realized by arranging bleed air holes (slots) on the compressor casing and the rotor drum. The air-introduction hole at the drum is usually directly connected to the chamber, the gas in the main flow enters the chamber first, and then is led out into the vortex reducer through the air-induction hole. The movement of the gas from the main flow to the air-inducing hole is completely realized by the spontaneous flow driven by the static pressure difference....

AI Technical Summary

Problems solved by technology

[0004] 1. Without any guidance, the speed and direction of the airflow are formed spontaneously according to the actual flow field conditions, which may cause separation, vortex and other structures in the flow field, which will affect the flow efficiency;

[0005] 2. There is a certain deviation between the direction of the airflow and the direction of the air-inducing hole, resulting in an incomplete match between the two, and the airflow cannot enter the air-inducing hole smoothly;

[0006] 3. Due to the existence of the above defects, in order to achieve a sufficient amount of air-entrainment, the area of ​​the air-entrainment holes required is relatively large, which will bring difficulties to the structural strength design of the drum

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