FIELD: gas-turbine combustion chambers. SUBSTANCE: gas turbine cannular-type combustion chamber works mainly on compressed natural gas at low toxicity of exhaust gases; it includes flame tubes connected by means of gas collector fastened with external and internal cases whose cavity is formed by its own circular walls. Each flame tube has front wall at outlet in traversal direction relative to flow; front wall is fastened with wall of flame tube and is connected with gas collector. Flame tube is provided with set of branch pipes in way of flow; after these branch pipes, wall of flame tube is solid. Each branch pipe has triangular shape of cross section; one vertex of triangle is directed opposite flow; lateral surfaces of branch pipes directed towards flow have set of holes and slots. One top of each branch pipe is located in radial plane of flame tube running through angle of front wall. Each vertex of cross section of branch pipes directed opposite flow is located in flame tube at right angle relative to radial plane passing through similar vertex of cross section of at least one of adjacent branch pipes. End face of each branch pipe in flame tube is made at distance of 0.5 to 0.6 of radius of internal surface. EFFECT: enhanced efficiency in reduction of toxicity of exhaust gases; increased economical efficiency due to intensification of mixing processes. 4 cl, 4 dwg
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Authors
Dates
1999-09-27—Published
1997-11-10—Filed