Methods and systems for a feed injector are provided. The feed injector system includes a plurality of annular channels that are substantially concentric about a longitudinal axis. The plurality of annular channels direct a flow of fluid substantially axially therethrough from a respective source to
Methods and systems for a feed injector are provided. The feed injector system includes a plurality of annular channels that are substantially concentric about a longitudinal axis. The plurality of annular channels direct a flow of fluid substantially axially therethrough from a respective source to a reaction zone. The feed injector system also includes a swirl member extending into the fluid flow path defined in at least one of the plurality of annular channels wherein the swirl member is configured to impart a circumferential flow direction to fluid flowing through the at least one annular channel.
대표청구항▼
1. A feed injector system comprising: a plurality of annular channels substantially concentric about a longitudinal axis that define corresponding fluid flow paths that direct a flow of fluid substantially axially therethrough from a respective source to a reaction zone; anda plurality of swirl memb
1. A feed injector system comprising: a plurality of annular channels substantially concentric about a longitudinal axis that define corresponding fluid flow paths that direct a flow of fluid substantially axially therethrough from a respective source to a reaction zone; anda plurality of swirl members extending into the fluid flow path defined in at least one of said plurality of annular channels, wherein at least one of said plurality of swirl members is movable axially within said at least one annular channel, wherein at least one of said plurality of swirl members comprises a plurality of blades aligned in a helical path spaced axially and circumferentially with respect to an adjacent swirl member in the helical path, and wherein at least one of said plurality of swirl members is configured to impart a first circumferential flow direction to fluid flowing through at least one of said plurality of annular channels, and at least one of said plurality of swirl members is configured to impart a second circumferential flow direction to fluid flowing through at least one of said plurality of annular channels, wherein the second circumferential flow direction is different than the first circumferential flow direction, and wherein a tangential velocity of the fluid is based on at least one of a pitch and a position of said plurality of swirl members. 2. A system in accordance with claim 1 wherein at least one of said plurality of swirl members comprises a body extending into at least one of said plurality of annular channels obliquely with respect to the longitudinal axis. 3. A system in accordance with claim 1 wherein said plurality of substantially concentric annular channels comprises: a first conduit substantially cylindrically shaped about a longitudinal axis, said first conduit comprising a radially outer surface and a radially inner surface, said first conduit further comprising a supply end, a discharge end and a length extending therebetween;a second conduit at least partially within and substantially concentrically aligned with said first conduit, said second conduit substantially cylindrically shaped about the longitudinal axis, said second conduit comprising a radially outer surface and a radially inner surface, said second conduit further comprising a supply end, a discharge end, and a length extending therebetween. 4. A system in accordance with claim 3 wherein at least one of said plurality of swirl members comprises a body extending radially inwardly from said inner surface of said first conduit into at least one of the plurality of annular channels, said at least one swirl member extending helically with respect to the longitudinal axis. 5. A system in accordance with claim 3 wherein at least one of said plurality of swirl members comprises a body extending radially outwardly from said outer surface of said second conduit into at least one of the plurality of annular channels, said at least one swirl member extending helically with respect to the longitudinal axis. 6. A system in accordance with claim 1 wherein said plurality of swirl members are spaced circumferentially about at least one of said plurality of channels, said swirl members aligned obliquely with respect to the longitudinal axis. 7. A system in accordance with claim 1 wherein said plurality of swirl members are spaced circumferentially about two of said plurality of channels, said swirl members in a first of the channels are aligned obliquely with respect to the longitudinal axis, said swirl members in a second of the channels are aligned obliquely in an opposite direction from the swirl members in the first channel. 8. A system in accordance with claim 1 wherein at least one of said plurality of swirl members comprises an elongated blade integral with and extending outwardly into at least one of said plurality of annular channels for a substantial length of said at least one channel. 9. A system in accordance with claim 8 wherein at least one of said plurality of swirl members is aligned along at least one of a helical path and a helical path having a variable pitch. 10. A system in accordance with claim 1 wherein said plurality of blades extend outwardly into at least one of said plurality of annular channels. 11. A system in accordance with claim 1 further comprising an actuator coupled to at least one of said plurality of swirl members, said actuator configured to move said at least one swirl member axially in a respective one of said plurality of annular channels. 12. A system in accordance with claim 1 further comprising an actuator coupled to at least one of said plurality of swirl members, said actuator configured to rotate said at least one swirl member such that a pitch of said at least one swirl member with respect to the longitudinal axis is changed. 13. A system in accordance with claim 1 further comprising: a first conduit having a first radially outwardly diverging tip; anda second conduit concentrically aligned about a longitudinal axis of said first conduit and radially outward from said first conduit, forming at least one of said plurality of annular channels;wherein a radially outer diameter of said first conduit proximate said tip is less than an inner diameter of second conduit such that said tip is axially removable through said second conduit. 14. A system in accordance with claim 1 further comprising: a first conduit comprising a first radially outwardly diverging tip; anda second conduit substantially concentrically aligned about said first conduit and spaced radially outward from said first conduit, said second conduit forming at least one of said plurality of annular channels,wherein said second conduit comprises a second diverging tip having an inner diameter that is larger than an inner diameter of said second conduit,wherein a radially outer diameter of said first conduit proximate said tip is greater than an inner diameter of said second conduit such that said tip of said first conduit interferes with the inner diameter of said second conduit during removal of said first conduit axially through said second conduit, and wherein said first diverging tip imparts an angular trajectory to fluid exiting said first diverging-tip. 15. A method of assembling a gasifier feed injector comprising: providing a first feed pipe having a first outside diameter about a longitudinal axis, the first pipe including a supply end, a discharge end, and a length extending therebetween;providing a second feed pipe having a first inside diameter, the second pipe including a supply end, a discharge end, and a length extending therebetween;providing a plurality of swirl members at a position along the length of at least one of the first pipe and the second pipe, wherein at least one of the plurality of swirl members is movable axially within at least one of the first pipe and the second pipe, at least one of the plurality of swirl members extends along a surface of the first pipe at an oblique angle with respect to the longitudinal axis such that the at least one swirl member imparts a first circumferential flow direction to a fluid that flows through the first pipe, and at least one of the plurality of swirl members extends along a surface of the second pipe such that the at least one swirl member imparts a second circumferential flow direction to a fluid that flows through the second pipe that is different in direction than the first circumferential flow direction, wherein at least one of the plurality of swirl members has a blade-shaped body that is formed integrally with an outer surface of the first pipe, and wherein the a tangential velocity of the fluid is based on at least one of the position and the angle of the swirl member; andinserting the first pipe into the second pipe such that the first pipe and the second pipe are substantially concentrically aligned. 16. A method in accordance with claim 15 wherein providing a plurality of swirl members comprises at least one of coupling at least one of the plurality of swirl members having a blade-shaped body to an inner surface of the second pipe and coupling at least one of the plurality of swirl members with a blade-shaped body to an outside surface of the first pipe. 17. A method in accordance with claim 15 wherein providing a plurality of swirl members comprises providing at least one of the plurality of swirl members with a blade-shaped body formed integrally in an inner surface of the second pipe. 18. A method in accordance with claim 15 wherein providing a plurality of swirl members comprises coupling at least one of the plurality of swirl members along a helical path about at least one of the first pipe and the second pipe. 19. A method in accordance with claim 18 wherein coupling at least one of the plurality of swirl members along a helical path about at least one of the first pipe and the second pipe comprises coupling at least one of the plurality of swirl members along a helical path having a variable pitch about at least one of the first pipe and the second pipe. 20. A method in accordance with claim 15 wherein providing a plurality of swirl members comprises coupling a plurality of swirl members adjacently aligned along a helical path about at least one of the first pipe and the second pipe. 21. A method in accordance with claim 20 wherein coupling a plurality of swirl members adjacently aligned along a helical path about at least one of the first pipe and the second pipe comprises coupling at least one of the plurality of swirl members along a helical path having a variable pitch about at least one of the first pipe and the second pipe. 22. A method in accordance with claim 15 further comprising changing the axial position of at least one of the plurality of swirl members using an actuator coupled to the at least one swirl member. 23. A gasification system comprising: a pressure vessel for partially oxidizing a fuel;a feed injector configured to inject a fuel into the pressure vessel;wherein the feed injector further comprises: a plurality of annular channels that define corresponding fluid flow paths that direct a flow of fluid substantially axially therethrough from a respective source to a reaction zone; anda plurality of swirl members extending into the fluid flow path defined in at least one of said plurality of annular channels, at least one of said plurality of swirl members comprises a plurality of blades extending outwardly into said at least one of said plurality of annular channels, at least one of said plurality of swirl members is configured to impart a first circumferential flow direction to fluid flowing through at least one of said annular channels, and at least one of said plurality of swirl members is configured to impart a second circumferential flow direction to fluid flowing through at least one of said annular channels that is different than the first circumferential flow direction, and wherein a tangential velocity of the fluid is based on at least one of a pitch and a position of said plurality of swirl members.
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이 특허에 인용된 특허 (15)
Joshi Narendra D. (Cincinnati OH) Epstein Michael J. (West Chester OH) Ewbank Michael E. (Pittsburgh PA), Air fuel mixer for gas turbine combustor.
Dominique Robillard FR; Thierry Borissoff FR; Celso Zerbinatti FR; Dora Sophia Alves FR; Jacques Dugue FR, Injector for a burner and corresponding injection system.
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