RU2012148919A - AXIAL COMPRESSOR DIFFUSER - Google Patents
AXIAL COMPRESSOR DIFFUSER Download PDFInfo
- Publication number
- RU2012148919A RU2012148919A RU2012148919/06A RU2012148919A RU2012148919A RU 2012148919 A RU2012148919 A RU 2012148919A RU 2012148919/06 A RU2012148919/06 A RU 2012148919/06A RU 2012148919 A RU2012148919 A RU 2012148919A RU 2012148919 A RU2012148919 A RU 2012148919A
- Authority
- RU
- Russia
- Prior art keywords
- diffuser
- cross
- guide surface
- sectional area
- diffuser according
- Prior art date
Links
- 230000007704 transition Effects 0.000 claims abstract 2
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/162—Bearing supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/60—Fluid transfer
- F05D2260/601—Fluid transfer using an ejector or a jet pump
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
1. Диффузор (20, 20а, 20b), в частности, для осевого компрессора, предпочтительно, стационарной газовой турбины (10), причем в указанном диффузоре (20, 20а, 20b) кольцевой канал (17), имеющий первую площадь поперечного сечения, переходит в выходное пространство (21), имеющее вторую, большую, площадь поперечного сечения вдоль оси (31) машины, отличающийся тем, что указанный переход осуществляется в несколько ступеней (22а-с).2. Диффузор по п.1, отличающийся тем, что площадь поперечного сечения внутри диффузора (20, 20а, 20b) возрастает в два скачка (22а, 22b).3. Диффузор по п.1 или 2, отличающийся тем, что диффузор (20, 20а, 20b) реализован в виде диффузора Карно.4. Диффузор по п.1, отличающийся тем, что диффузор (20а) включает в себя внешний корпус (23) и внутренний корпус (24), между которыми через диффузор (20а) перемещается рабочая среда, и тем, что скачки (22а-с) площади поперечного сечения образованы скачками диаметра внутреннего корпуса (24).5. Диффузор по п.1, отличающийся тем, что между двумя соседними ступенями (22а, 22b) расположена кольцевая выпуклая направляющая поверхность (28), которая сходит на конус по своему диаметру, и тем, что на верхней по потоку ступени из двух ступеней (22а, 22b) предусмотрено круговое отверстие (29), через которое газовый поток может вытекать и перемещаться вдоль направляющей поверхности (28) в виде потока (30) Коанда.6. Диффузор по п.5, отличающийся тем, что направляющая поверхность (28) расположена между предпоследней и последней ступенями диффузора (20b).7. Диффузор по п.1, отличающийся тем, что диффузор (20, 20а, 20b) расположен на выходе стационарной газовой турбины (10).1. A diffuser (20, 20a, 20b), in particular for an axial compressor, preferably a stationary gas turbine (10), and in said diffuser (20, 20a, 20b) an annular channel (17) having a first cross-sectional area, passes into the output space (21), having a second, large, cross-sectional area along the axis (31) of the machine, characterized in that said transition is carried out in several stages (22a-c) .2. A diffuser according to claim 1, characterized in that the cross-sectional area inside the diffuser (20, 20a, 20b) increases in two steps (22a, 22b). A diffuser according to claim 1 or 2, characterized in that the diffuser (20, 20a, 20b) is implemented as a Carnot diffuser. A diffuser according to claim 1, characterized in that the diffuser (20a) includes an outer casing (23) and an inner casing (24), between which the working medium moves through the diffuser (20a), and that the jumps (22a-c) cross-sectional areas are formed by jumps in the diameter of the inner case (24) .5. The diffuser according to claim 1, characterized in that between the two adjacent steps (22a, 22b) there is an annular convex guide surface (28), which converges on the cone in diameter, and in that there are two stages on the upstream stage (22a) 22b) a circular opening (29) is provided through which the gas stream can flow out and move along the guide surface (28) in the form of a Coanda stream (30). 6. A diffuser according to claim 5, characterized in that the guide surface (28) is located between the penultimate and last stages of the diffuser (20b). 7. A diffuser according to claim 1, characterized in that the diffuser (20, 20a, 20b) is located at the outlet of the stationary gas turbine (10).
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011118735.2 | 2011-11-17 | ||
| DE102011118735A DE102011118735A1 (en) | 2011-11-17 | 2011-11-17 | DIFFUSER, ESPECIALLY FOR AN AXIAL FLOW MACHINE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2012148919A true RU2012148919A (en) | 2014-05-27 |
| RU2569015C2 RU2569015C2 (en) | 2015-11-20 |
Family
ID=47215404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2012148919/06A RU2569015C2 (en) | 2011-11-17 | 2012-11-16 | Diffuser for fixed gas turbine plant |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20130129498A1 (en) |
| EP (1) | EP2594741A3 (en) |
| JP (2) | JP2013108498A (en) |
| CN (1) | CN103122776B (en) |
| DE (1) | DE102011118735A1 (en) |
| RU (1) | RU2569015C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2693345C2 (en) * | 2014-12-05 | 2019-07-02 | Сафран Хеликоптер Энджинз | Air supply chamber |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2896793B1 (en) | 2014-01-21 | 2024-08-28 | Ansaldo Energia Switzerland AG | Method of operating a gas turbine assembly and the gas turbine assembly |
| EP2947283B1 (en) | 2014-05-23 | 2017-01-11 | GE Energy Products France SNC | Thermal-acoustic insulation structure for the exhaust of a rotating machine |
| EP3023695A1 (en) * | 2014-11-20 | 2016-05-25 | Siemens Aktiengesellschaft | Thermal energy machine |
| US10563543B2 (en) * | 2016-05-31 | 2020-02-18 | General Electric Company | Exhaust diffuser |
| RU2632354C1 (en) * | 2016-12-01 | 2017-10-04 | Открытое акционерное общество "Научно-производственное объединение по исследованию и проектированию энергетического оборудования им. И.И. Ползунова" (ОАО "НПО ЦКТИ") | Steam turbine double-flow low-pressure cylinder |
| US11291938B2 (en) | 2016-12-16 | 2022-04-05 | General Electric Technology Gmbh | Coanda effect moisture separator system |
| KR102350377B1 (en) * | 2020-03-20 | 2022-01-14 | 두산중공업 주식회사 | Anti-Separation Hub Structure for Exhaust Diffuser |
| US11840937B2 (en) | 2021-12-17 | 2023-12-12 | Pratt & Whitney Canada Corp. | Diffuser nozzle for a gas turbine engine |
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| CA486078A (en) * | 1950-04-27 | 1952-08-26 | W. Kellal George | Exit area control for jet engines |
| US2637972A (en) * | 1948-04-09 | 1953-05-12 | Mcdonnell Aircraft Corp | Afterburner for turbojet engines and the like |
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| DE1062066B (en) * | 1952-10-15 | 1959-07-23 | Nat Res Dev | Device, especially for gas turbine systems for burning gaseous or vaporized fuel |
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-
2011
- 2011-11-17 DE DE102011118735A patent/DE102011118735A1/en not_active Withdrawn
-
2012
- 2012-11-06 EP EP12191495.6A patent/EP2594741A3/en not_active Withdrawn
- 2012-11-16 RU RU2012148919/06A patent/RU2569015C2/en not_active IP Right Cessation
- 2012-11-16 CN CN201210465817.7A patent/CN103122776B/en not_active Expired - Fee Related
- 2012-11-16 JP JP2012252515A patent/JP2013108498A/en active Pending
- 2012-11-16 US US13/678,676 patent/US20130129498A1/en not_active Abandoned
-
2016
- 2016-07-14 JP JP2016139281A patent/JP6188885B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2693345C2 (en) * | 2014-12-05 | 2019-07-02 | Сафран Хеликоптер Энджинз | Air supply chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013108498A (en) | 2013-06-06 |
| RU2569015C2 (en) | 2015-11-20 |
| JP6188885B2 (en) | 2017-08-30 |
| CN103122776B (en) | 2016-02-10 |
| US20130129498A1 (en) | 2013-05-23 |
| CN103122776A (en) | 2013-05-29 |
| EP2594741A2 (en) | 2013-05-22 |
| EP2594741A3 (en) | 2017-08-23 |
| DE102011118735A1 (en) | 2013-05-23 |
| JP2016180412A (en) | 2016-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PD4A | Correction of name of patent owner | ||
| PC41 | Official registration of the transfer of exclusive right |
Effective date: 20170518 |
|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20181117 |