Braided burner for premixed gas-phase combustion
AssigneeMicro Turbine Technology B.V.
InventorsViktor Mykolayovych Kornilov, Savad Shakariyants, Laurentius Philippus Hendrika de Goey
Life of this patent
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Abstract
A surface burner for gas combustion has a burner surface which is fabricated by intertwining or interweaving an elongated flexible element across a distinct burner frame. This fabrication method can be best referred to as braiding, but also plaiting, lacing or another comparable method.
Claims14
1-13. (canceled)
A burner for premixed gas-phase combustion having a flame stabilization surface, the burner comprising:
- an elongated flexible element made of multiple strands of yarn twisted together such that segments of the elongated element form curved and inclined flow channels of a variable cross section and openings between these segments on a burner surface, which is the flame stabilization surface;
- and
- a frame consisting of structural elements across which the elongated flexible element is intertwined or interwoven.
The burner according to claim 1, wherein the elongated flexible element is intertwined or interwoven into a pattern characterized as braided or similar to braided.
The burner according to claim 1, wherein the structural elements of the frame are no-hollow cooling elements.
The burner according to claim 3, wherein the structural elements of the frame are thinner than the elongated flexible element woven across the structural elements, and the flow channels between segments of the elongated flexible element and the openings on the flame stabilization surface are formed as to issue intricately inclined jets that produce flames when a combustible mixture flows through them.
The burner according to claim 1, wherein a combustible mixture is supplied towards the flame stabilization surface and the elongated flexible element is made of a material through which a part of the combustible mixture can filter in order to burn on the flame stabilization surface in the surface combustion mode.
The burner according to claim 1, wherein the method of intertwining or interweaving is plaiting.
The burner according to claim 1, wherein the burner has the shape of a basket.
The burner according to claim 7, wherein the structural elements of the frame are supported by a holder, the structural elements comprising:
- an even number of full-U arches and;
- one half-U arch.
The burner according to claim 8, wherein each of the full-U arches comprise a bridging section and two leg sections, and wherein at least two of the full-U arches are essentially parallel to each other.
The burner according to claim 9, wherein the structural frame elements do not cross each other.
The burner according to claim 9, wherein the structural frame elements cross each other and form a cupola center point.
The burner according to claim 1, wherein it is a gas turbine burner, wherein the flow channels between the elongated flexible element segments and openings on the flame stabilization surface are formed as to accelerate the combustible mixture as to counteract any upstream flame propagation and thereby make the burner flashback-resistant.
The burner according to claim 1, wherein the elongated flexible element is made of a high-temperature material that prevents burner failure at high inlet temperatures.
Dependencies are inferred from the claim text.