RU2011112993A - ROTOR AND SEALING DEVICE FOR ROTARY MACHINE - Google Patents
ROTOR AND SEALING DEVICE FOR ROTARY MACHINE Download PDFInfo
- Publication number
- RU2011112993A RU2011112993A RU2011112993/06A RU2011112993A RU2011112993A RU 2011112993 A RU2011112993 A RU 2011112993A RU 2011112993/06 A RU2011112993/06 A RU 2011112993/06A RU 2011112993 A RU2011112993 A RU 2011112993A RU 2011112993 A RU2011112993 A RU 2011112993A
- Authority
- RU
- Russia
- Prior art keywords
- rotor
- sections
- sealing device
- groove
- shape
- Prior art date
Links
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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1. Ротор (230) для ротационной машины, имеющий участки (240), отделенные друг от друга в осевом направлении, причем по меньшей мере один из указанных участков (240) ротора имеет образованную на нем канавку (245), которая имеет форму, обеспечивающую создание вихря при протекании текучей среды через ротор (230) с обеспечением предотвращения осевого потока текучей среды. ! 2. Ротор (230) по п.1, в котором форма канавки (245), образованной меньшей мере на одном участке (240) ротора, отличается от формы канавки (245), образованной по меньшей мере на одном другом участке (240) ротора. ! 3. Ротор (230) по п.1, в котором радиальная высота одного участка (240) ротора отличается от радиальной высоты по меньшей мере одного другого участка (240) ротора. ! 4. Уплотнительное устройство (200) для ротационной машины, содержащее: ! статор (210), имеющий зубцы (220), отделенные друг от друга в осевом направлении, и ! ротор (230), имеющий участки (240), отделенные друг от друга в осевом направлении, ! при этом по меньшей мере один из указанных участков (240) ротора имеет образованную на нем канавку (245), которая имеет форму, обеспечивающую создание вихря при протекании текучей среды через ротор (230) с обеспечением предотвращения осевого потока текучей среды. ! 5. Уплотнительное устройство (200) по п.4, в котором форма канавки (245), образованной на одном участке (240) ротора, отличается от формы канавки (245), образованной по меньшей мере на одном другом участке (240) ротора. ! 6. Уплотнительное устройство (200) по п.4, в котором шаг указанных участков (240) ротора регулируется на основе минимального зазора между этими участками (240) и зубцами (220) статора. ! 7. Уплотнительное устройство (200) по п.4, в котором радиал� 1. Rotor (230) for a rotary machine, having sections (240) separated from each other in the axial direction, and at least one of these sections (240) of the rotor has a groove (245) formed thereon, which has a shape that provides creating a vortex when the fluid flows through the rotor (230) to prevent axial flow of the fluid. ! 2. Rotor (230) according to claim 1, wherein the shape of the groove (245) formed in at least one section (240) of the rotor differs from the shape of the groove (245) formed in at least one other section (240) of the rotor . ! 3. Rotor (230) according to claim 1, wherein the radial height of one section (240) of the rotor differs from the radial height of at least one other section (240) of the rotor. ! 4. Sealing device (200) for a rotary machine, containing: ! a stator (210) having teeth (220) separated from each other in the axial direction, and ! a rotor (230) having sections (240) separated from each other in the axial direction, ! moreover, at least one of the specified sections (240) of the rotor has a groove (245) formed on it, which is shaped to create a vortex when the fluid flows through the rotor (230) to prevent axial flow of the fluid. ! 5. The sealing device (200) according to claim 4, wherein the shape of the groove (245) formed in one section (240) of the rotor differs from the shape of the groove (245) formed in at least one other section (240) of the rotor. ! 6. The sealing device (200) according to claim 4, wherein the pitch of said sections (240) of the rotor is adjusted based on the minimum gap between these sections (240) and the teeth (220) of the stator. ! 7. Sealing device (200) according to claim 4, in which the radial
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/756,443 | 2010-04-08 | ||
US12/756,443 US20110250073A1 (en) | 2010-04-08 | 2010-04-08 | Rotor and assembly for reducing leakage flow |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2011112993A true RU2011112993A (en) | 2012-10-20 |
Family
ID=43881028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2011112993/06A RU2011112993A (en) | 2010-04-08 | 2011-04-06 | ROTOR AND SEALING DEVICE FOR ROTARY MACHINE |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110250073A1 (en) |
EP (1) | EP2375001A2 (en) |
JP (1) | JP2011220522A (en) |
RU (1) | RU2011112993A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8206082B2 (en) * | 2009-04-29 | 2012-06-26 | General Electric Company | Packing seal rotor lands |
EP2954172A4 (en) * | 2013-02-05 | 2016-11-09 | United Technologies Corp | Gas turbine engine component having tip vortex creation feature |
JP6510915B2 (en) * | 2015-07-03 | 2019-05-08 | 株式会社神戸製鋼所 | Labyrinth seal |
JP6637385B2 (en) * | 2016-05-31 | 2020-01-29 | 株式会社神戸製鋼所 | Labyrinth seal |
JP6665043B2 (en) * | 2016-06-22 | 2020-03-13 | 株式会社神戸製鋼所 | Labyrinth seal |
JP6623138B2 (en) * | 2016-10-13 | 2019-12-18 | 株式会社神戸製鋼所 | Labyrinth seal |
JP6650383B2 (en) * | 2016-10-13 | 2020-02-19 | 株式会社神戸製鋼所 | Labyrinth seal |
CN109488391B (en) * | 2017-10-25 | 2024-05-07 | 智伟电力(无锡)有限公司 | Vortex steam seal of steam turbine |
US11047249B2 (en) | 2019-05-01 | 2021-06-29 | Raytheon Technologies Corporation | Labyrinth seal with passive check valve |
CN112196631A (en) * | 2020-09-30 | 2021-01-08 | 中国航发沈阳发动机研究所 | Labyrinth sealing structure |
US11692557B2 (en) * | 2021-01-04 | 2023-07-04 | Danfoss A/S | Step seal for refrigerant compressors |
CN117027968A (en) * | 2023-08-31 | 2023-11-10 | 哈尔滨汽轮机厂有限责任公司 | Steam turbine and gland seal structure |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US835836A (en) * | 1906-02-27 | 1906-11-13 | Richard Schulz | Labyrinth packing for rotary machines. |
US1482031A (en) * | 1923-01-18 | 1924-01-29 | Said Parsons | Packing for rotating bodies |
US1831242A (en) * | 1926-12-09 | 1931-11-10 | Westinghouse Electric & Mfg Co | Labyrinth packing |
US2123818A (en) * | 1935-07-11 | 1938-07-12 | Wegmann Ernst | Labyrinth packing |
US4335886A (en) * | 1980-07-22 | 1982-06-22 | Cornell Pump Company | Labyrinth seal with current-forming sealing passages |
US5639095A (en) * | 1988-01-04 | 1997-06-17 | Twentieth Technology | Low-leakage and low-instability labyrinth seal |
US5244216A (en) * | 1988-01-04 | 1993-09-14 | The Texas A & M University System | Labyrinth seal |
US5029876A (en) * | 1988-12-14 | 1991-07-09 | General Electric Company | Labyrinth seal system |
US6131910A (en) * | 1992-11-19 | 2000-10-17 | General Electric Co. | Brush seals and combined labyrinth and brush seals for rotary machines |
-
2010
- 2010-04-08 US US12/756,443 patent/US20110250073A1/en not_active Abandoned
-
2011
- 2011-04-04 JP JP2011082340A patent/JP2011220522A/en not_active Withdrawn
- 2011-04-06 RU RU2011112993/06A patent/RU2011112993A/en not_active Application Discontinuation
- 2011-04-07 EP EP11161550A patent/EP2375001A2/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP2375001A2 (en) | 2011-10-12 |
JP2011220522A (en) | 2011-11-04 |
US20110250073A1 (en) | 2011-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA93 | Acknowledgement of application withdrawn (no request for examination) |
Effective date: 20140407 |