Combustion arrangement and turbine comprising a damping facility
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/24
F23R-003/26
F23R-003/54
출원번호
US-0237870
(2012-07-24)
등록번호
US-8955324
(2015-02-17)
우선권정보
EP-11177779 (2011-08-17)
국제출원번호
PCT/EP2012/064528
(2012-07-24)
§371/§102 date
20140208
(20140208)
국제공개번호
WO2013/023886
(2013-02-21)
발명자
/ 주소
Bulat, Ghenadie
출원인 / 주소
Siemens Aktiengesellschaft
대리인 / 주소
Beusse Wolter Sanks & Maire, PA
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
A combustion arrangement for a turbine is provided including: a casing; a combustion chamber within the casing, an inner casing volume may be defined as a volume inside the casing but outside the combustion chamber; a partitioning wall partitioning the inner casing volume into first and second volum
A combustion arrangement for a turbine is provided including: a casing; a combustion chamber within the casing, an inner casing volume may be defined as a volume inside the casing but outside the combustion chamber; a partitioning wall partitioning the inner casing volume into first and second volume portions, the partitioning wall may have at least one aperture to allow fluid communication between the first and second volume portions; and a valve may be arranged at the casing to allow an outgoing fluid flow from the inner casing volume to an outside of the casing depending on a valve operating position. The combustion chamber has a combustion entry port for supplying an oxidant into the combustion chamber, where the combustion entry port may be in fluid communication with the first volume portion. The arrangement may be adapted to adjust the valve operating position for damping an oscillation of the arrangement.
대표청구항▼
1. A combustion arrangement comprising: a casing;a combustion chamber arranged within the casing, wherein an inner casing volume is defined to be a volume inside the casing but outside the combustion chamber;a partitioning wall partitioning the inner casing volume into a first volume portion and a s
1. A combustion arrangement comprising: a casing;a combustion chamber arranged within the casing, wherein an inner casing volume is defined to be a volume inside the casing but outside the combustion chamber;a partitioning wall partitioning the inner casing volume into a first volume portion and a second volume portion, the partitioning wall having at least one aperture to allow fluid communication between the first volume portion and the second volume portion; anda valve arranged at the casing to allow an outgoing fluid flow from the inner casing volume to an outside of the casing depending on a valve operating position;wherein the combustion chamber has a combustion entry port for supplying an oxidant into the combustion chamber, wherein the combustion entry port is in fluid communication with the first volume portion,wherein the arrangement is adapted to adjust the valve operating position for damping an oscillation of the arrangement. 2. The combustion arrangement according to claim 1, wherein the valve is arranged to allow the fluid flow from the second volume portion to flow outside of the casing depending on a valve operating position. 3. The combustion arrangement according to claim 1, wherein the casing further comprises a casing entry port for supplying an ingoing fluid flow of the oxidant into the first volume portion, wherein the valve is adapted to adjust the valve operating position such that a range from 0% to 20% of the ingoing fluid flow of the oxidant supplied to the first volume portion is lead via the second volume portion, to flow outside of the casing. 4. The combustion arrangement according to claim 3, wherein the range is from 0% to 10%. 5. The combustion arrangement according to claim 1, wherein the combustion arrangement is adapted to adjust the valve operating position based on amplitude of the oscillation. 6. The combustion arrangement according to claim 5, wherein the combustion arrangement is adapted to adjust the valve operating position to increase the fluid flow through the valve, if the amplitude of oscillation to be damped increases. 7. The combustion arrangement according to claim 5, further comprising: a controller communicatively connected to the valve, wherein the controller is adapted to adjust the valve operating position based on an operating state of the combustion arrangement. 8. The combustion arrangement according to claim 7, wherein the controller is adapted to adjust the valve operating position based on a detected oscillation of the combustion chamber, the casing and/or the combustion arrangement and/or based on a combustion chamber exit temperature and/or based on the ingoing fluid flow of the oxidant and/or based on a fuel flow supplied into the combustion chamber and/or based on a material and/or a geometry of the arrangement. 9. The combustion arrangement according to claim 1, wherein the partitioning wall circumferentially surrounds a longitudinal axis of the combustion chamber. 10. The combustion arrangement according to claim 1, wherein the partitioning wall further comprises: at least one further aperture, wherein the one further aperture is arranged at a first radial position different from a second radial position of the aperture, wherein the aperture and the further aperture comprise counter-directional tapered shapes. 11. The combustion arrangement according to claim 1, wherein the aperture of the partitioning wall comprises a tapered shape. 12. The combustion arrangement according to claim 1, wherein the partitioning wall is axially arranged downstream, as defined by a flow direction of a combustion product exhausted by the combustion chamber of a center of the combustion chamber. 13. A gas turbine comprising the combustion arrangement according to claim 1. 14. The turbine according to claim 13, comprising a high pressure turbine section being driven by an burnt mixture of fuel and the oxidant exhausted by the combustion chamber, wherein a casing portion at least partly delimiting the second volume portion is in thermal contact with a high pressure section passageway of the exhausted burnt mixture. 15. A method for operating a combustion arrangement as claimed in claim 1, comprising adjusting the valve operating position for damping an oscillation of the arrangement.
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이 특허에 인용된 특허 (11)
Ono, Masaki; Konishi, Tetsu, Acoustic damper, combustor, and gas turbine.
Aigner Manfred (Wettingen CHX) Urech Raphael (Hallwil CHX) Wetter Hugo (Buchs CHX), Gas turbine combustion chamber with scavenged Helmholtz resonators.
Ephraim Gutmark ; Christian Oliver Paschereit CH; Wolfgang Weisenstein CH, Method and apparatus for controlling thermoacoustic vibrations in a combustion system.
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