A three-swirl classifying cyclone and its combustion chamber

Abstract

The invention discloses a three-swirl classifying swirler and its combustion chamber, wherein the swirler includes an axial connecting piece and a radial connecting piece, the center of the axial connecting piece is provided with an axial through hole, the The radial connector includes coaxial first venturi tubes and second venturi tubes arranged at intervals, and the annular space between the first venturi tubes and the second venturi tubes is fixedly connected in an annular array. For the blades provided, both ends of multiple sets of blades are fixedly connected to the first venturi tube and the second venturi tube, and the annular space is evenly divided into a plurality of relatively independent subspaces. Through the special structural design and layout of the swirler, the present invention not only achieves the goal of reducing the discharge of pollutants in the low-pollution combustion chamber, but also simplifies the fuel supply system of the main combustion stage of the combustion chamber and reduces the Possibility of coking.

Description

technical field [0001] The invention belongs to the technical field of combustion chambers, and in particular relates to a three-swirl classifying swirler and a combustion chamber thereof. Background technique [0002] As people pay more and more attention to the living environment and health, people also pay more attention to and strictly control various pollution sources that endanger their own health and damage the environment. Although aeroengines and industrial gas turbines account for a small proportion of the total amount of combustion pollutant emissions, due to their local characteristics, such as near airports and places where industrial gas turbines are used, high concentrations of pollutant emissions will gather. In the air, polluting emissions from all types of aircraft are the only source of high-altitude air pollutants. As a result, emissions from gas turbines, including aero engines and various industrial gas turbines, are increasingly restricted. [0003] ...

AI Technical Summary

Problems solved by technology

[0008] Purpose of the invention: The purpose of the present invention is to provide a three-swirl graded cyclone and its combustion chamber. The present invention not only achieves low-pollution combustion chambers and reduces pollutant emissions through the special structural design and arrangement of the cyclone It also simplifies the main fuel supply system of the three-stage swirl combustor, reduces the possibility of coking of the main fuel nozzle, and solves the problem of excessive weight caused by the complexity of the existing engine structure and fuel supply system

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