Rotary detonation combustion chamber based on swirler injection
A combustion chamber and swirler technology, applied in the field of rotating detonation combustion chamber, can solve the problems of poor mixing effect of oxidant and fuel, poor combustion chamber economy, high pollutant emission, etc., to improve combustion efficiency, stability and economy Sexuality and the effect of reducing pollutant emissions
Active Publication Date: 2021-11-23
HUANENG POWER INTERNATIONAL +1
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[0004] The purpose of the present invention is to propose a rotary detonation combustion chamber based on swirler injection, which is intended to solve the poor mixing effect of oxidant and fuel in the existing RDC, and the combustion The efficiency is low, and the problems of poor combustion chamber economy and high pollutant emission are brought, and the present invention can be applied to fields such as gas turbines and aero-engines
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[0030] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
[0031] refer to figure 1 with figure 2 As shown, the present invention provides an annular rotary detonation combustion chamber based on swirler injection, which is composed of a swirl nozzle 1 , an annular combustion chamber 2 , an oxidant supply annular chamber 10 and a fuel supply chamber 12 . The annular combustion chamber 2 ...
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The invention provides a rotary detonation combustion chamber based on swirler injection. The rotary detonation combustion chamber mainly consists of a swirl nozzle, an annular combustion cavity, a wall face cooling structure and an oxidizing agent and fuel supply structure. In the working process of the combustion chamber, whether rotating detonation waves can be stably spread or not and whether the combustion chamber can stably work or not are directly determined by whether an oxidizing agent and fuel can be rapidly and uniformly mixed or not. According to the rotary detonation combustion chamber, a circular seam-spray hole injection structure generally adopted by the rotary detonation combustion chamber is designed and replaced with a swirler injection structure, the oxidizing agent and fuel are supplied into the annular combustion cavity through a swirler nozzle, and due to the fact that the swirler can effectively increase the swirling strength of gas and increase the turbulence degree of a flow field, the oxidizing agent and the fuel can be quickly and uniformly mixed. Under the condition that the structural complexity of the combustion chamber is not obviously increased, the mixing effect of the oxidizing agent and the fuel can be effectively improved, the working stability of the combustion chamber is guaranteed, the combustion efficiency of the combustion chamber is improved, and pollutant emission is reduced.
Description
technical field [0001] The invention belongs to the technical field of rotary detonation combustion chambers, in particular to a rotary detonation combustion chamber based on swirler injection. Background technique [0002] As a clean, efficient and stable power generation device, the gas turbine occupies an irreplaceable position in modern civilization. The gas turbine combustor is mainly based on the isobaric combustion method, and its technical level has matured, and it is difficult to make further breakthroughs. Compared with the isobaric combustion method, the cycle method based on detonation combustion theoretically has higher heat cycle efficiency and faster heat release rate. Due to the advantages of detonation combustion, it has attracted widespread attention at home and abroad. At present, preliminary research on the application of rotating detonation combustor (RDC) based on detonation combustion to ramjet engines and aeroengines has been carried out, and Some pr...
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IPC IPC(8): F23R3/38
CPCF23R3/38
Inventor 肖俊峰王致程王玮高松王峰李晓丰胡孟起
Owner HUANENG POWER INTERNATIONAL