Premixed burner with profiled air mass stream, gas turbine and process for burning fuel in air
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0667291
(2003-09-19)
|
우선권정보 |
EP-0021011 (2002-09-20) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Siemens Aktiengesellschaft
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
3 |
초록
▼
The invention relates to a premix burner for burning fuel with air to combustion gas, in particular within a combustion turbine. Profiling means are provided for profiling the mass stream of the combustion air in a direction radial to an annular shaped air channel in order to generate a radial varyi
The invention relates to a premix burner for burning fuel with air to combustion gas, in particular within a combustion turbine. Profiling means are provided for profiling the mass stream of the combustion air in a direction radial to an annular shaped air channel in order to generate a radial varying fuel/air mixture that stabilises the combustion. Accordingly, the invention also relates to a gas turbine and a process for burning fuel in air.
대표청구항
▼
1. A premix burner comprising:an annular air channel for guidance of combustion air along a flow direction; and a fuel inlet for feeding fuel into said combustion air, wherein a profiling means is located in said air channel upstream of said fuel inlet for profiling the mass stream of said combustio
1. A premix burner comprising:an annular air channel for guidance of combustion air along a flow direction; and a fuel inlet for feeding fuel into said combustion air, wherein a profiling means is located in said air channel upstream of said fuel inlet for profiling the mass stream of said combustion air in a direction perpendicular to said flow direction, wherein according to said profiling, a fuel density downstream said fuel inlet varies along every radial direction through said annular air channel. 2. A burner according to claim 1, wherein the profiling means is a perforated, annular shaped metal plate, wherein every hole of said plate has a respective hole area, thereby forming a hole area density of said metal plate and wherein said hole area density varies in a radial direction.3. A burner according to claim 2, wherein the hole area density increases in an outward radial direction.4. A burner according to claim 1, wherein the profiling means is a grid.5. A burner according to claim 1, wherein the profiling means is a sieve.6. A burner according to claim 1, wherein the profiling is such that said mass stream of said combustion air increases in an outward radial direction.7. A burner according to claim 1, wherein the annular air channel encircles a central diffusion burner.8. A gas turbine, with a premix burner, wherein the premix burner comprising:an annular air channel for guidance of combustion air along a flow direction; and a fuel inlet for feeding fuel into said combustion air, wherein a profiling means is located in said air channel upstream of said fuel inlet for profiling the mass stream of said combustion air in a direction perpendicular to said flow direction, wherein according to said profiling, a fuel density downstream said fuel inlet varies along every radial direction through said annular air channel. 9. A process for burning fuel in air comprising:guiding air through an annular channel of a premix burner; profiling the mass stream of said air in such a way that the mass stream varies along every radial direction through said annular air channel; feeding fuel into said profiled air stream at a fuel inlet, thereby generating a fuel/air mixture with varying fuel density along every radial direction through said annular air channel; and igniting and burning said fuel/air mixture. 10. A gas turbine according to claim 8, wherein the profiling means of the burner is a perforated, annular shaped metal plate, wherein every hole of said plate has a respective hole area, thereby forming a hole area density of said metal plate and wherein said hole area density varies in a radial direction.11. A gas turbine according to claim 10, wherein the hole area density increases in an outward radial direction.12. A gas turbine according to claim 8, wherein the profiling means is a grid.13. A gas turbine according to claim 8, wherein the profiling means is a sieve.14. A gas turbine according to claim 8, wherein the profiling is such that said mass stream of said combustion air increases in an outward radial direction.15. A gas turbine according to claim 8, wherein the annular air channel encircles a central diffusion burner.
이 특허에 인용된 특허 (3)
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Althaus Rolf (Kobe JPX), Combustion chamber with temperature graduated combustion flow.
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Doebbeling, Klaus; Knoepfel, Hans Peter; Paschereit, Christian Oliver, Process for the operation of an annular combustion chamber, and annular combustion chamber.
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Koenig, Michael Herbert; Prade, Bernd, Turbine engine fuel nozzle.
이 특허를 인용한 특허 (7)
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Prade, Bernd, Burner for fluid fuels and method for operating such a burner.
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Eskin, Leo D.; Roby, Richard J.; Klassen, Michael S.; Ramotowski, Michael J., Integrated system and method for production and vaporization of liquid hydrocarbon fuels for combustion.
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Ramotowski, Michael J.; Joklik, Richard; Fuller, Casey; Gokulakrishnan, Ponnuthurai; Eskin, Leo; Gaines, Glenn; Roby, Richard J.; Klassen, Michael S., Method and apparatus for conditioning liquid hydrocarbon fuels.
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Ramotowski, Michael J.; Joklik, Richard; Fuller, Casey; Gokulakrishnan, Ponnuthurai; Eskin, Leo; Gaines, Glenn; Roby, Richard J.; Klassen, Michael S., Method and apparatus for conditioning liquid hydrocarbon fuels.
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Homitz, Joseph; Sykes, David M.; O'Brien, Walter F.; Vandsburger, Uri; LePera, Steve, Premixing injector for gas turbine engines.
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Roby, Richard J.; Klassen, Michael S.; Schemel, Christopher F., System for vaporization of liquid fuels for combustion and method of use.
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Roby, Richard J.; Klassen, Michael S.; Schemel, Christopher F., System for vaporization of liquid fuels for combustion and method of use.
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