Three-cyclone classifying cyclone and combustion chamber provided with same

Abstract

The invention discloses a three-cyclone classifying cyclone and a combustion chamber provided with the same. The cyclone comprises an axial connecting piece and a radial connecting piece, wherein an axial through hole is formed in the center of the axial connecting piece; and the radial connecting piece comprises a first venturi tube and a second venturi tube which are coaxial and arranged at an interval, a plurality of blades arranged in an annular array mode are fixedly connected in an annular space between the first venturi tube and the second venturi tube, and the two ends of the blades are fixedly connected with the first venturi tube and the second venturi tube and evenly divide the annular space into a plurality of relatively independent subspaces. According to the three-cyclone classifying cyclone and the combustion chamber provided with the same, by means of the special structural design and arrangement mode of the cyclone, the purpose of reducing pollutant emission of a low-pollution combustion chamber can be achieved, a main combustion stage fuel supply system of the combustion chamber is simplified, and the coking possibility of a main combustion stage fuel nozzle is reduced.

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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