Flameless combustion organizational structure and flameless combustion chamber for realizing structure

Abstract

The invention discloses a flameless combustion organizational structure used in a combustion chamber of a gas turbine. In the structure, a plurality of coaxial ejector nozzles are evenly arranged at one end of the cylinder-shaped combustion chamber in a ring shape; the center of the ejector nozzles evenly arranged in the ring shape is provided with a cylinder-shaped reflux structure; secondary air does not take part in combustion in the cylinder-shaped combustion chamber; the air taking part in the reaction enters from one end provided with the ejector nozzles arranged on the cylinder-shaped combustion chamber, and a large amount of reflux high-temperature fume is mixed with the fresh air according to the position relationship between the nozzle evenly arranged in the ring shape and the cylinder-shaped reflux structure arranged in the center of the nozzles, so that the air temperature is increased, and the air is diluted; and the diluted high-temperature air spontaneously combusts when exposed to the fuel to form a high-temperature dispersing reaction area, so that the flameless combustion is achieved in the combustion chamber of the gas turbine. The invention simultaneously discloses the flameless combustion chamber for realizing the flameless combustion organizational structure. The flameless combustion organizational structure and the flameless combustion chamber realize flameless combustion and achieve the aims of extremely low pollutant emission and stable combustion of the combustion chamber of the gas turbine.

Description

Technical field [0001] The present invention relates to the technical field of gas turbines, in particular to a flameless combustion organization structure applied to a combustion chamber of a gas turbine, and a flameless combustion chamber for realizing the flameless combustion organization structure. Background technique [0002] At present, my country's coal-based energy structure is facing increasing international pressure on environmental protection issues, and there is an urgent need for breakthroughs and innovations in clean coal technology. High-efficiency heat-to-power conversion processes such as integrated coal gasification combined cycle (IGCC), coal co-production systems, and coal-to-hydrogen power generation systems with advanced gas turbines as the core are due to efficiency, economic competitiveness, pollutant emission control, especially in CO 2 The huge development potential in many aspects such as emission reduction is an important part of mainstream power gener...

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Problems solved by technology

The main disadvantages of this approach are the limited lifetime of catalysts and active reaction surfaces at high temperatures, and they are expensive

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