Patent ID: 8555650
Filing Date: 2013-10-15
Classification: F23R

Abstract:
1. A combustion device comprising: a combustion liner in which a combustion chamber is formed; a main burner provided at a top portion of the combustion liner and including a premix passage configured to annularly inject a pre-mixed gas of a fuel and air into the combustion chamber and a radial swirler configured to introduce the fuel and the air to the premix passage in a radially inward direction; a fuel injection pipe configured to inject the fuel to the radial swirler from an entrance side of the radial swirler; and wherein the premix passage includes a radially extending upstream portion and an axially extending downstream portion, the radial swirler includes swirl vanes and dividing plates which divide the swirl vanes into a plurality of swirler stages in an axial direction, and the radial swirler fits in the upstream portion of the premix passage.