System for managing exhaust flow for a gas turbine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/08
F01D-025/30
F02C-007/00
출원번호
US-0789573
(2013-03-07)
등록번호
US-9085996
(2015-07-21)
우선권정보
PL-401926 (2012-12-06)
발명자
/ 주소
Ponnuraj, Balakrishnan
Drezek, Przemyslaw Sebastian
Lopez-Parra, Fernando
출원인 / 주소
GENERAL ELECTRIC COMPANY
대리인 / 주소
Fletcher Yoder, P.C.
인용정보
피인용 횟수 :
2인용 특허 :
6
초록▼
A system includes a gas turbine enclosure. The system also includes a gas turbine engine disposed in the gas turbine enclosure, wherein the gas turbine engine is configured to output an exhaust flow. The system further includes an exhaust driven eductor configured to draw an air flow through and out
A system includes a gas turbine enclosure. The system also includes a gas turbine engine disposed in the gas turbine enclosure, wherein the gas turbine engine is configured to output an exhaust flow. The system further includes an exhaust driven eductor configured to draw an air flow through and out of the gas turbine engine enclosure using the exhaust flow. The system yet further includes an exhaust stack coupled to the gas turbine enclosure, wherein the exhaust stack is configured to output a mixed flow of the exhaust flow and the air flow. The system still further includes a diffuser plate disposed within the exhaust stack, wherein the diffuser plate is configured to provide a homogenous flow distribution for the mixed flow downstream of the diffuser plate.
대표청구항▼
1. A system, comprising: a gas turbine enclosure;a gas turbine engine disposed in the gas turbine enclosure, wherein the gas turbine engine is configured to output an exhaust flow;an exhaust driven eductor formed by the gas turbine enclosure and the gas turbine engine and configured to draw an air f
1. A system, comprising: a gas turbine enclosure;a gas turbine engine disposed in the gas turbine enclosure, wherein the gas turbine engine is configured to output an exhaust flow;an exhaust driven eductor formed by the gas turbine enclosure and the gas turbine engine and configured to draw an air flow through and out of the gas turbine enclosure using the exhaust flow, wherein the air flow interfaces with surfaces of both the gas turbine enclosure and the gas turbine engine as it flows through the exhaust driven eductor;an exhaust stack coupled to the gas turbine enclosure, wherein the exhaust stack is configured to output a mixed flow of the exhaust flow and the air flow; anda diffuser plate disposed within the exhaust stack, wherein the diffuser plate is configured to provide a homogenous flow distribution for the mixed flow downstream of the diffuser plate. 2. The system of claim 1, wherein the diffuser plate comprises orifices. 3. The system of claim 1, wherein the diffuser plate comprises two separate perforated plates. 4. The system of claim 3, wherein the two separate perforated plates are offset from one another in a crosswise direction relative to a downstream direction through the exhaust stack. 5. The system of claim 3, wherein the two separate perforated plates are arranged in a v-shape, wherein a width of the v-shape increases in the downstream direction along the exhaust stack. 6. The system of claim 5, wherein diffuser plate comprises a pair of support bars coupled to a lee-ward side of each perforated plate. 7. The system of claim 1, wherein the diffuser plate is configured to reduce the velocity of the mixed flow while maintaining static pressure levels for operation of the exhaust driven eductor. 8. The system of claim 1, wherein the exhaust stack comprises a silencer section comprising a plurality of silencer baffles, and the diffuser plate is located upstream of the silencer section. 9. The system of claim 8, wherein the diffuser plate is configured to reduce noise emitted from the silencer section. 10. A system, comprising: an exhaust driven eductor formed by a gas turbine enclosure and a gas turbine engine, wherein the exhaust driven eductor is configured to draw an air flow through and out of the gas turbine enclosure using an exhaust flow from the gas turbine engine disposed in the gas turbine enclosure, and wherein the air flow interfaces with surfaces of both the gas turbine enclosure and the gas turbine engine as it flows through the exhaust driven eductor; anda diffuser plate configured to mount within an exhaust stack downstream from the exhaust driven eductor and upstream from a silencer section in the exhaust stack, wherein the diffuser plate is configured to provide an even flow distribution through the silencer section. 11. The system of claim 10, comprising the gas turbine enclosure, and the gas turbine engine is disposed in the gas turbine enclosure, wherein the gas turbine engine is configured to output the exhaust flow. 12. The system of claim 10, wherein the diffuser plate comprises orifices. 13. The system of claim 10, wherein the diffuser plate comprises two separate perforated plates offset from one another in a crosswise direction relative to a downstream direction through the exhaust stack. 14. The system of claim 13, wherein the two separate perforated plates are arranged in a v-shape, wherein a width of the v-shape increases in the downstream direction along the exhaust stack. 15. The system of claim 10, wherein the diffuser plate covers approximately 30 to 90 percent of a cross-sectional area of the exhaust stack. 16. The system of claim 10, wherein the diffuser plate is configured to reduce a velocity and improve uniformity of flow between the exhaust driven eductor and the silencer section. 17. The system of claim 10, comprising the exhaust stack coupled to the gas turbine enclosure, wherein the exhaust stack comprises the silencer section comprising a plurality of silencer baffles, and the exhaust stack is configured to output a mixed flow of the exhaust flow and the air flow through the silencer section. 18. A system, comprising: a diffuser plate comprising a plurality of orifices, wherein the diffuser plate is configured to mount within an exhaust stack coupled to a gas turbine enclosure having a gas turbine, wherein the diffuser plate is configured to provide a homogenous flow distribution, downstream of the diffuser plate, for a mixed flow comprising an exhaust flow from the gas turbine and a ventilation air flow driven by an exhaust driven eductor, and wherein the diffuser plate is configured to mount within the exhaust stack downstream of where the exhaust flow and the ventilation air flow mix to form the mixed flow. 19. The system of claim 18, wherein the diffuser plate comprises two separate perforated plates arranged in a v-shape, and the two separate perforated plates are offset from one another in a crosswise direction relative to a downstream direction of the mixed flow through the exhaust stack. 20. The system of claim 19, wherein the diffuser plate covers approximately 30 to 90 percent of a cross-sectional area of the exhaust stack, and the v-shape of the two separate perforated plates has an angle of approximately 110 to 160 degrees. 21. The system of claim 1, wherein the exhaust stack is disposed downstream of the gas turbine enclosure. 22. The system of claim 1, wherein the diffuser plate is disposed within the exhaust stack downstream of where the exhaust flow and the air flow mix to form the mixed flow. 23. The system of claim 10, wherein the diffuser plate is configured to mount within the exhaust stack downstream from both the exhaust driven eductor and the gas turbine enclosure. 24. The system of claim 10, wherein the diffuser plate is configured to mount within the exhaust stack downstream of where the exhaust flow and the air flow mix to form a mixed flow. 25. The system of claim 18, wherein the diffuser plate is configured to mount within the exhaust stack downstream from both the exhaust driven eductor and the gas turbine enclosure.
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이 특허에 인용된 특허 (6)
Fonda-Bonardi G. (2075 Lida Flora Dr. Los Angeles CA 90077), Diffuser.
Hines William R. (Montgomery OH) Farrell William M. (Cincinnati OH), Gas turbine engine and method of operation for providing increased output shaft horsepower.
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