Method for reducing the oscillations induced by the combustion in combustion systems and premix burner for carrying out the method

摘要

An interference body (3) is centrally located in the region of the rotation axis for the swirl flow (6), resulting in a flow-mechanical stabilisation of the backflow zone (5). Fuel exits from this central body into the swirl flow. At least one flow of combustion air (7) is introduced to a region (2) inside the burner (1) at a tangent, where it is intensively mixed with a supply of gaseous and/or liquid fuel (8), creating a swirl flow coaxial to the burner axis. An area of the swirl flow cross-section at the burner exit induces a backflow zone that stabilises the flame front there. An Independent claim is also included for a premix burner.