Swirl generator, method for preventing flashback in a burner having at least one swirl generator and burner

摘要

A swirl generator, a method for preventing flashback in a burner with a swirl generator and a burner are provided. The swirl generator includes a central fuel distributor element, an outer wall enclosing the central fuel distributor element and bounding an axial flow channel for combustion air, swirl vanes extending in a radial direction to the outer wall and giving the flowing combustion air a tangential flow component, and a separating wall enclosing the central fuel distributor element and being positioned radially within the outer wall. The separating wall divides the flow channel into a radially inner channel segment and a radially outer channel segment. The radially inner channel segment allows the combustion air to pass without giving it a tangential flow component or while giving it a tangential flow component counter to the orientation of the tangential flow component in the radially outer channel segment.

主权项

1. A swirl generator, comprising:
a central fuel distributor element; an outer wall enclosing the central fuel distributor element and bounding an axial flow channel for combustion air; a separating wall enclosing the central fuel distributor element and being positioned radially within the outer wall, the separating wall dividing the flow channel into a radially inner channel segment and a radially outer channel segment; and swirl vanes arranged in the radially outer channel segment and extending in a radial direction to the outer wall and giving the flowing combustion air a tangential flow component, wherein, during combustion, the combustion air passes the radially inner channel segment without a tangential flow component, and wherein fuel lines extend through the radially inner channel segment to the swirl vanes in the radially outer channel segment.