Feed injector for gasification and related method
AssigneeGeneral Electric Company
InventorHenry Choisun Chan
Life of this patent
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Abstract
A feed injector for use in a gasification apparatus comprising plural concentric tubes converging at an outlet tip, at least one interior tube of the plural concentric tubes having a plurality of static, helically-twisted mixing elements fixed to an exterior surface thereof.
Claims19
A feed injector for use in a gasification apparatus comprising plural concentric tubes converging at an outlet tip of a radially outermost of said concentric tubes, at least one interior tube of said plural concentric tubes having a plurality of static, helically-twisted mixing elements fixed to an exterior surface thereof wherein said plurality of static, helically-twisted mixing elements include plural axially adjacent sets of two helically-twisted plates, extending axially along said at least one interior tube from adjacent said outlet tip at least to a fuel component inlet to said at least one interior tube.
A feed injector for use in a gasification apparatus in which streams of different fuel components are mixed, said feed injector comprising a plurality of concentrically arranged tubes including a radially outermost tube defining at least two annular passages and one center passage converging at an outlet tip of the radially outermost tube of the injector;
- and a plurality of static, helically-twisted mixing elements fixed on an internal one of said plurality of concentrically arranged tubes, said mixing elements arranged in alternating left and right hand pairs of such elements, and extending axially along said internal one of said plurality of concentrically arranged tubes from adjacent said outlet tip a distance more than one third a length dimension of the injector.
A method of supplying fuel components to a combustion device through a feed injector comprising:
- (a) providing a feed injector comprising plural concentric tubes including an outer tube, an intermediate tube and a center tube forming two annular passages and a single center passage converging at an outlet tip of said outer tube;
- (b) fixing a plurality of static, helically-twisted mixing elements to at least a peripheral surface of said center tube, within a radially inner one of said two annular passages said helically-twisted mixing elements extending axially along said center tube from adjacent said outlet tip at least to a fuel component inlet to said center tube;
- and
- (c) supplying fuel components through said two annular passages and said center passage for discharge through said outlet tip.
Dependencies are inferred from the claim text.