Catalytic oxidation module for a gas turbine engine
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0101248
(2005-04-07)
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등록번호 |
US-7594400
(2009-10-12)
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발명자
/ 주소 |
- Szedlacsek, Peter
- Bruck, Gerald Joseph
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출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
10 |
초록
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A catalytic oxidation module (28) for a gas turbine engine (10) includes a bundle (50) of tubular elements (30) separating a first fluid flow of a combustion mixture (24) from a second fluid flow (e.g., 26). Each of the tubular elements has an inlet end (42) and an outlet end (44) in fluid communica
A catalytic oxidation module (28) for a gas turbine engine (10) includes a bundle (50) of tubular elements (30) separating a first fluid flow of a combustion mixture (24) from a second fluid flow (e.g., 26). Each of the tubular elements has an inlet end (42) and an outlet end (44) in fluid communication with a downstream plenum (36) and a respective end portion (60) comprising a plurality of spaced apart longitudinal fingers (58). The fingers of each tubular element are joined at abutting fingers of respective adjacent elements to retain the tubes at the respective end portions with sufficient flexibility to allow relative movement between the adjacent tubular elements. A catalyst (32) is disposed on respective surfaces of a plurality of the tubular elements exposed to at least one of the first fluid flow and second fluid flow.
대표청구항
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We claim as our invention: 1. A catalytic oxidation module for a gas turbine engine combustor comprising: a bundle of tubular elements, each of the tubular elements having an inlet end and an outlet end in fluid communication with a downstream plenum, the tubular elements separating a first fluid f
We claim as our invention: 1. A catalytic oxidation module for a gas turbine engine combustor comprising: a bundle of tubular elements, each of the tubular elements having an inlet end and an outlet end in fluid communication with a downstream plenum, the tubular elements separating a first fluid flow of a combustion mixture from a second fluid flow; each of the tubular elements having a respective end portion comprising a plurality of spaced apart longitudinal fingers, the fingers of each tubular element joined at abutting fingers of respective adjacent tubular elements, wherein the abutting fingers are adapted to freely flex in response to longitudinal movement of at least one of the respective adjacent tubular elements; and a catalytic material disposed on respective surfaces of a plurality of the tubular elements exposed to at least one of the first fluid flow and second fluid flow. 2. The catalytic oxidation module of claim 1, wherein the end portion comprises an expanded cross section region. 3. The catalytic oxidation module of claim 2, wherein a wall thickness of the fingers disposed in the expanded cross section region is thinner than a wall thickness of a nominal cross section region of the tubular element so that the fingers formed in the expanded cross section region have a flexibility greater than a flexibility of fingers formed in a nominal cross section region. 4. The catalytic oxidation module of claim 2, wherein the expanded cross section region comprises a flared portion transitioning from a nominal cross section of the tubular element to an expanded portion having larger cross section than the nominal cross section. 5. The catalytic oxidation module of claim 2, further comprising a tubesheet retaining each of the tubular elements and disposed remote from the end portion. 6. The catalytic oxidation module of claim 1, wherein the plurality of fingers are joined to a remainder of the tubular element. 7. The catalytic oxidation module of claim 1, wherein the plurality of fingers are integral with a remainder of the tubular element. 8. The catalytic oxidation module of claim 1, wherein the expanded portion comprises a flared region transitioning from a nominal cross sectional area of the tubular element to an expanded region having larger cross sectional area than the nominal cross sectional area. 9. The catalytic oxidation module of claim 8, wherein the fingers extend longitudinally through the expanded region into the flared region of the expanded portion. 10. The catalytic oxidation module of claim 1, further comprising a weld attaching the at least one of the plurality of fingers of the first element to the at least one of the plurality of fingers of the adjacent second tubular element. 11. The catalytic oxidation module of claim 1, further comprising a rivet attaching the at least one of the plurality of fingers of the first element to the at least one of the plurality of fingers of the adjacent second tubular element. 12. The catalytic oxidation module of claim 1, wherein the fingers are defined by slots comprising a rounded bottom portion. 13. The catalytic oxidation module of claim 12, wherein the rounded bottom comprises a semicircle shape having a radius corresponding to half a width of the slot. 14. The catalytic oxidation module of claim 1, wherein the fingers are defined by slots comprising an enlarged circular bottom portion. 15. The catalytic oxidation module of claim 1, wherein the fingers are defined by slots having a variable slot width along the length of the slot. 16. The catalytic oxidation module of claim 15, wherein the slots comprise a slot width at the end portion wider than a slot width remote from the end portion. 17. The catalytic oxidation module of claim 15, wherein the slots comprise a slot width at the end portion narrower than a slot width remote from the end portion. 18. The catalytic oxidation module of claim 1, wherein the fingers comprise an arc width at the end portion sufficiently large to allow welding fingers of adjacent elements together. 19. The catalytic oxidation module of claim 1, wherein a total combined arc width of the fingers of each tubular element at the end portion comprises 85 percent to 15 percent of the circumference of the tubular element at the end portion. 20. The catalytic oxidation module of claim 19, wherein a total combined arc width of the fingers of each tubular element at the end portion comprises 60 percent to 20 percent of the circumference of the tubular element at the end portion. 21. The catalytic oxidation module of claim 20, wherein a total combined arc width of the fingers of each tubular element at the end portion comprises 50 percent to 40 percent of the circumference of the tubular element at the end portion. 22. The catalytic oxidation module of claim 1, wherein the second fluid flow comprises a cooling fluid containing no combustible fuel. 23. A gas turbine engine comprising: a compressor for supplying a first and second fluid flow of compressed air; a fuel supply for injecting a combustible fuel into the first fluid flow; a catalytic oxidation module comprising an array of tubular elements spaced apart from one another and separating a first fluid flow of a combustion mixture from a second fluid flow, each of the tubular elements having a respective expanded portion comprising a plurality of longitudinal slots forming a plurality of annularly spaced apart longitudinal fingers, at least one of the plurality of fingers of a first tubular element attached to at least one of the plurality of fingers of an adjacent second tubular element, wherein the attached fingers are adapted to freely flex in response to longitudinal movement of at least one of the first tubular element and the second tubular element; a combustion completion chamber receiving the first and second fluid flows from the catalytic oxidation module and producing a hot gas; and a turbine for receiving the hot gas from the combustion completion chamber. 24. A method of assembling a catalytic oxidation module for a gas turbine engine comprising: assembling a plurality of tubular elements into a bundle; joining end portions of each of the tubular elements in the bundle at points of contact among the tubular elements of the bundle; and forming longitudinal slots in the end portions of the tubular elements away from joined points of contact to define a plurality of spaced apart joined fingers in the end portions of each of the tubular elements between the slots, wherein the joined fingers comprise fingers of each tubular element joined at fingers of respective adjacent tubular elements, and wherein the joined fingers are capable of retaining the tubular elements at the respective end portions thereof such that the joined fingers are adapted to freely flex in response to longitudinal movement of a respective tubular element. 25. The method of claim 24, wherein the slots are formed by abrading away portions of the tubular elements. 26. The method of claim 24, further comprising forming a rounded bottom in each slot. 27. The method of claim 24, further comprising forming an enlarged circular bottom portion in each slot. 28. The method of claim 25, further comprising forming an enlarged circular bottom portion in each slot.
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Pillsbury ; Paul W. ; DeCorso ; Serafino M., Apparatus and method for starting a large gas turbine having a catalytic combustor.
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DeCorso Serafino M. (Media PA) Seglem Clifford E. (Wallingford PA), Catalytic combustor having a variable temperature profile.
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Bruck, Gerald J.; Kepes, William E.; Bachovchin, Dennis M.; Lippert, Thomas E., Catalytic oxidation module for a gas turbine engine.
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Smith Lance L. ; Etemad Shahrokh ; Ulkarim Hasan ; Castaldi Marco J. ; Pfefferle William C., Method and apparatus for a catalytic firebox reactor.
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Smith, Lance L.; Etemad, Shahrokh; Castaldi, Marco J.; Karim, Hasan Ul; Pfefferle, William C., Method and apparatus for a fuel-rich catalytic reactor.
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William C. Pfefferle ; Lance L Smith ; Manco J. Castaldi, Method and apparatus for a fuel-rich catalytic reactor.
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Beebe Kenneth W. (Galway NY), Multiple venturi tube gas fuel injector for catalytic combustor.
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Young William E. (Churchill Borough PA) Carl Dan E. (Orchard Park NY), Passively cooled catalytic combustor for a stationary combustion turbine.
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DeCorso Serafino M. (Media PA) Pillsbury Paul W. (Wallingford PA), Wide range catalytic combustor.
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