Burner for a Turbo Machine, Baffle plate for Such a Burner and a Turbo Machine Having Such a Burner

Abstract

The invention relates to a burner for a turbomachine, comprising a guide plate that is arranged in a flame chamber and engages a wall section via spacers. The invention further relates to a guide plate, the fastening section of which comprises a plurality of raised areas for fastening to a wall section of a flame chamber. The invention further relates to a turbomachine having a burner of said kind.

Description

PRIORITY CLAIM[0001]This is a U.S. national stage of application No. PCT / EP2008 / 008936, filed on Oct. 22, 2008. Priority is claimed on the following application(s): Country: Germany, Application No.: 10 2007 050 664.5, Filed: Oct. 24, 2007 the content of which is incorporated here by reference.FIELD OF THE INVENTION[0002]The present invention relates to a burner for a turbo machine and more specifically to a burner having a baffle plate for guiding an air stream in a flame chamber.BACKGROUND OF THE INVENTION[0003]In a combustion process taking place in a flame chamber of a burner for turbo machines, radiant heat is formed, heating up in particular the chamber wall bordering the flame chamber. With thick walls and / or overlapping of material, this heating leads to high thermal stresses. The respective wall sections of the flame chamber are usually cooled by convection, in which outside air is guided over exterior surfaces of wall sections facing away from the flame chamber. To reduce ...

AI Technical Summary

Benefits of technology

[0004]It is an object of the present invention is to minimize the thermal stress associated with a burner for turbo machines while retaining the proven boundary conditions with regard to fluid mechanics and to create a turbo machine having such a burner.

[0008]In a preferred exemplary embodiment, the elevations each extend from a mounting edge of the mounting section to the flow guidance edge. This forms a plurality of channels between the elevations, extending essentially in the flow direction of the air stream. This has the advantage that a substream of the injected air can flow between the mounting section of the baffle plate and the wall section of the flame chamber virtually without any change in direction.

[0009]The elevations preferably taper out in the direction of the flow guidance edge and develop into a planar flow guidance section. Retaining the planar flow guidance section with its linear flow guidance edge has the advantage that the proven flow-optimized boundary conditions remain unchanged.

[0012]The wave crests and wave troughs preferably each have a uniform geometry and are uniformly arranged on the mounting section. This allows uniform cooling to be achieved over the circumference of the baffle plate.

Problems solved by technology

Secondly, a substream of air may flow between the mounting section of the baffle plate and the wall section of the flame chamber, resulting in cooling of both sides of these wall sections.

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