Converging flow joint insert system at an intersection between adjacent transitions extending between a combustor and a turbine assembly in a gas turbine engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01D-009/02
F01D-009/04
F01D-025/28
F02C-007/20
F23R-003/00
F23R-003/60
F01D-005/02
F01D-009/06
F01D-009/00
F23R-003/46
F23R-003/42
F02C-003/14
출원번호
US-0318078
(2014-06-26)
등록번호
US-9803487
(2017-10-31)
국제출원번호
PCT/US2014/044274
(2014-06-26)
국제공개번호
WO2015/199693
(2015-12-30)
발명자
/ 주소
Wiebe, David J.
Carlson, Andrew
Stoker, Kyle C.
출원인 / 주소
SIEMENS ENERGY, INC.
인용정보
피인용 횟수 :
0인용 특허 :
10
초록▼
A transition duct system for routing a gas flow in a combustion turbine engine is provided. The transition duct system includes one or more converging flow joint inserts forming a trailing edge at an intersection between adjacent transition ducts. The converging flow joint insert may be contained wi
A transition duct system for routing a gas flow in a combustion turbine engine is provided. The transition duct system includes one or more converging flow joint inserts forming a trailing edge at an intersection between adjacent transition ducts. The converging flow joint insert may be contained within a converging flow joint insert receiver and may be disconnected from the transition duct bodies by which the converging flow joint insert is positioned. Being disconnected eliminates stress formation within the converging flow joint insert, thereby enhancing the life of the insert. The converging flow joint insert may be removable such that the insert can be replaced once worn beyond design limits.
대표청구항▼
1. A transition duct system for routing gas flow in a combustion turbine subsystem that includes a first stage blade array having a plurality of blades extending in a radial direction from a rotor assembly for rotation in a circumferential direction, the circumferential direction having a tangential
1. A transition duct system for routing gas flow in a combustion turbine subsystem that includes a first stage blade array having a plurality of blades extending in a radial direction from a rotor assembly for rotation in a circumferential direction, the circumferential direction having a tangential direction component, an axis of the rotor assembly defining a longitudinal direction, and at least one combustor located longitudinally upstream of the first stage blade array and located radially outboard of the first stage blade array, the transition duct system comprising: a first transition duct body having an internal passage extending between an inlet and an outlet;wherein the outlet of the first transition duct body is offset from the inlet of the first transition duct body in the longitudinal direction and the tangential direction;wherein the outlet of the first transition duct body is formed from a radially outer side opposite to a radially inner side, and the radially outer side and the radially inner side are coupled together with opposed first and second side walls;a second transition duct body having an internal passage extending between an inlet and an outlet;wherein the outlet of the second transition duct body is offset from the inlet of the second transition duct body in the longitudinal direction and the tangential direction;wherein the outlet of the second transition duct body is formed from a radially outer side opposite to a radially inner side, and the radially outer side and the radially inner side are coupled together with opposed first and second side walls;wherein the first side wall of the first transition duct body intersects with the second side wall of the second transition duct body forming a converging flow joint; anda converging flow joint insert extending through an outer wall of the converging flow joint and positioned at a downstream end of the converging flow joint to form a trailing edge of the converging flow joint,wherein an internal cooling system within the converging flow joint insert comprises at least one internal cooling chamber having an internal volume less than one half of a volume contained within outer walls forming the converging flow joint insert,at least one exhaust orifice extending from an inlet at the at least one internal cooling chamber through an outer wall forming a first section of the converging flow joint insert, wherein the first section has a uniform thickness from a first side of the converging flow joint insert to a second side of the converging flow joint insert opposite to the first side of the converging flow joint insert, and further comprising at least one exhaust orifice extending from an inlet at the at least one internal cooling chamber through an outer wall forming a second section of the converging flow joint insert, wherein the second section extends from the first section and forms an outer downstream tip of the converging flow joint insert, wherein the second section has a nonuniform thickness with a thickness at the outer downstream tip being less than a thickness at an upstream edge of the second section. 2. A transition duct system for routing gas flow in a combustion turbine subsystem that includes a first stage blade array having a plurality of blades extending in a radial direction from a rotor assembly for rotation in a circumferential direction, the circumferential direction having a tangential direction component, an axis of the rotor assembly defining a longitudinal direction, and at least one combustor located longitudinally upstream of the first stage blade array and located radially outboard of the first stage blade array, the transition duct system comprising: a first transition duct body having an internal passage extending between an inlet and an outlet;wherein the outlet of the first transition duct body is offset from the inlet of the first transition duct body in the longitudinal direction and the tangential direction;wherein the outlet of the first transition duct body is formed from a radially outer side opposite to a radially inner side, and the radially outer side and the radially inner side are coupled together with opposed first and second side walls;a second transition duct body having an internal passage extending between an inlet and an outlet;wherein the outlet of the second transition duct body is offset from the inlet of the second transition duct body in the longitudinal direction and the tangential direction;wherein the outlet of the second transition duct body is formed from a radially outer side opposite to a radially inner side, and the radially outer side and the radially inner side are coupled together with opposed first and second side walls;wherein the first side wall of the first transition duct body intersects with the second side wall of the second transition duct body forming a converging flow joint;a converging flow joint insert extending through an outer wall of the converging flow joint and positioned at a downstream end of the converging flow joint to form a trailing edge of the converging flow joint;an internal cooling system within the converging flow joint insert, the internal cooling system having an internal cooling chamber;a converging flow joint insert receiver positioned at the converging flow joint and in which the converging flow joint insert is positioned,wherein a body of the converging flow joint insert includes a first section with a uniform thickness from a first side of the converging flow joint insert to a second side of the converging flow joint insert opposite to the first side of the converging flow joint insert and a second section extending from the first section and forming an outer downstream tip of the converging flow joint insert, wherein the second section has a nonuniform thickness with a thickness at the outer downstream tip being less than a thickness at an upstream edge of the second section;at least one exhaust orifice extending from an inlet at the internal cooling chamber through an outer wall forming the first section of the converging flow joint insert; andat least one exhaust orifice extending from an inlet at the internal cooling chamber through an outer wall forming the second section of the converging flow joint insert. 3. A transition duct system for routing gas flow in a combustion turbine subsystem that includes a first stage blade array having a plurality of blades extending in a radial direction from a rotor assembly for rotation in a circumferential direction, the circumferential direction having a tangential direction component, an axis of the rotor assembly defining a longitudinal direction, and at least one combustor located longitudinally upstream of the first stage blade array and located radially outboard of the first stage blade array, the transition duct system comprising: a first transition duct body having an internal passage extending between an inlet and an outlet;wherein the outlet of the first transition duct body is offset from the inlet of the first transition duct body in the longitudinal direction and the tangential direction;wherein the outlet of the first transition duct body is formed from a radially outer side opposite to a radially inner side, and the radially outer side and the radially inner side are coupled together with opposed first and second side walls;a second transition duct body having an internal passage extending between an inlet and an outlet;wherein the outlet of the second transition duct body is offset from the inlet of the second transition duct body in the longitudinal direction and the tangential direction;wherein the outlet of the second transition duct body is formed from a radially outer side opposite to a radially inner side, and the radially outer side- and the radially inner side are coupled together with opposed first and second side walls;wherein the first side wall of the first transition duct body intersects with the second side wall of the second transition duct body forming a converging flow joint;a converging flow joint insert extending through an outer wall of the converging flow joint and positioned at a downstream end of the converging flow joint to form a trailing edge of the converging flow joint;an internal cooling system within the converging flow joint insert,wherein the internal cooling system comprises at least one internal cooling chamber in fluid communication with at least one exhaust orifice extending from an inlet at the at least one internal cooling chamber through an outer wall forming a first section of the converging flow joint insert, wherein the first section includes an outer downstream tip of the converging flow joint insert and wherein an outlet of the at least one exhaust orifice is positioned at an outer surface of the outer wall forming the first section of the converging flow joint insert; andat least one impingement plate positioned in the at least one internal cooling chamber and extending from a first side of the converging flow joint insert to a second side of the converging flow joint insert opposite to the first side of the converging flow joint insert, wherein the at least one impingement plate includes a plurality of impingement orifices. 4. The transition duct system of claim 3, wherein the at least one internal cooling chamber has an internal volume less than one half of a volume contained within outer walls forming the converging flow joint insert. 5. The transition duct system of claim 4, further comprising at least one exhaust orifice extending from an inlet at the at least one internal cooling chamber through an outer wall forming a second section of the converging flow joint insert, wherein the second section has a uniform thickness from the first side of the converging flow joint insert to the second side of the converging flow joint insert, and wherein the first section extends from the second section and forms an outer downstream tip of the converging flow joint insert, wherein the first section has a nonuniform thickness with a thickness at the outer downstream tip being less than a thickness at an upstream edge of the first section. 6. The transition duct system of claim 3, wherein the converging flow joint insert is disconnected from the first side wall of the first transition duct body and the second side wall of the second transition duct body. 7. The transition duct system of claim 3, further comprising a converging flow joint insert receiver, wherein the converging flow joint insert receiver includes at least one inner wall defining at least one insert receiving orifice, the at least one inner wall providing support to the converging flow joint insert and including at least one flange contact surface configured to support a flange positioned at a first end of the converging flow joint insert to prevent the converging flow joint insert from being ingested into a turbine downstream of the transition duct system. 8. The transition duct system of claim 7, wherein the converging flow joint insert is removably attached within the transition duct system and is formed from a material with a higher coefficient of thermal expansion than a material forming the converging flow joint insert receiver. 9. The transition duct system of claim 3, wherein the first side wall of the first transition duct body is configured to be coplanar with the second side wall of the second transition duct body when assembled beside the first transition duct body. 10. The transition duct system of claim 3, wherein longitudinal axes of the first and second transition duct bodies are offset from each other in the circumferential direction. 11. The transition duct system of claim 3, wherein the converging flow joint insert is formed from a body with a flange positioned at a first end of the converging flow joint insert to prevent the converging flow joint insert from being ingested into a turbine downstream of the transition duct system. 12. The transition duct system of claim 11, wherein the flange of the converging flow joint insert has a larger cross-sectional area than the body of the converging flow joint insert. 13. The transition duct system of claim 11, wherein the body of the converging flow joint insert includes a second section with a uniform thickness from the first side of the converging flow joint insert to a second side of the second section of the converging flow joint insert, the first section extending from the second section, and wherein the first section has a nonuniform thickness with a thickness at the outer downstream tip being less than a thickness at an upstream edge of the first section. 14. The transition duct system of claim 3, wherein the at least one exhaust orifice comprises a plurality of exhaust orifices extending from inlets at the at least one internal cooling chamber through the outer wall forming the first section of the converging flow joint insert to outlets of the plurality of exhaust orifices positioned at the outer surface of the outer wall forming the first section of the converging flow joint insert.
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이 특허에 인용된 특허 (10)
Teets, J. Michael, Annular combustor for use with an energy system.
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