GB768069A - Improvements in or relating to steam turbines - Google Patents
Improvements in or relating to steam turbinesInfo
- Publication number
- GB768069A GB768069A GB7820/55A GB782055A GB768069A GB 768069 A GB768069 A GB 768069A GB 7820/55 A GB7820/55 A GB 7820/55A GB 782055 A GB782055 A GB 782055A GB 768069 A GB768069 A GB 768069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steam
- communicates
- turbine
- pressure stage
- inner casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
768,069. Turbines, elastic-fluid. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 17, 1955 [March 24, 1954], No. 7820/55. Class 110 (3). An axial flow steam turbine having an outer casing 10 surrounding an inner casing 14 has formed in the inner casing 14 an annular chamber 27 which communicates with an intermediate pressure stage 19a of the turbine in order to reduce the pressure and temperature differentials across-the walls of the turbine. The chamber 27 communicates through restricted passages 32, 32a with conduits 33 to lead the steam back to a lower pressure stage 19b, or the steam may be used for any other purpose. Steam is discharged from the lowest pressure stage into an annular chamber 29 between the inner and outer casings 14, 10 and is exhausted through a connection 30. Steam inlet connections 20 in the outer casing 10 are slidably mounted in extensions 21 in the inner casing to allow for thermal expansion. An annular groove 34 extends from the junction of the restricted passages 32, 32a and communicates through a labyrinth seal 36 with a bleed-off passage 35 extending from the downstream side of a nozzle block 28.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US768069XA | 1954-03-24 | 1954-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB768069A true GB768069A (en) | 1957-02-13 |
Family
ID=22134297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7820/55A Expired GB768069A (en) | 1954-03-24 | 1955-03-17 | Improvements in or relating to steam turbines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB768069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140205435A1 (en) * | 2013-01-23 | 2014-07-24 | General Electric Company | Inner casing for steam turbine engine |
| CN111042876A (en) * | 2019-12-20 | 2020-04-21 | 东方电气集团东方汽轮机有限公司 | Built-in interlayer heating device for steam turbine cylinder |
-
1955
- 1955-03-17 GB GB7820/55A patent/GB768069A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140205435A1 (en) * | 2013-01-23 | 2014-07-24 | General Electric Company | Inner casing for steam turbine engine |
| US10094245B2 (en) * | 2013-01-23 | 2018-10-09 | Nuovo Pignone Srl | Inner casing for steam turbine engine |
| US10844748B2 (en) | 2013-01-23 | 2020-11-24 | Nuovo Pignone Srl | Inner casing for steam turbine engine |
| CN111042876A (en) * | 2019-12-20 | 2020-04-21 | 东方电气集团东方汽轮机有限公司 | Built-in interlayer heating device for steam turbine cylinder |
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