GB911673A - Improvements in bolted nozzlebox for high pressure steam turbines - Google Patents
Improvements in bolted nozzlebox for high pressure steam turbinesInfo
- Publication number
- GB911673A GB911673A GB13157/59A GB1315759A GB911673A GB 911673 A GB911673 A GB 911673A GB 13157/59 A GB13157/59 A GB 13157/59A GB 1315759 A GB1315759 A GB 1315759A GB 911673 A GB911673 A GB 911673A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inner casing
- annular member
- flange
- conduit
- bolted
- 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
- F01D9/00—Stators
- F01D9/06—Fluid supply conduits to nozzles or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
911,673. Turbines. GENERAL ELECTRIC CO. April 17, 1959 [May 2, 1958], No. 13157/59. Class 110 (3). In a bolted nozzle box construction 4 for a high-pressure, high-temperature steam turbine, Figs. 1 and 2, including an inlet conduit 5 extending through an opening in the inner casing 2 into an opening in the outer casing 1 and having an integral flange 6 engaging the adjacent surface of the inner casing 2, a plurality of bolts 11 are circumferentially spaced around the flange and are connected through openings in the inner casing 2 with an annular member 12 spaced from the inner casing 2 to define coolant flow passages 12b, 13a, substantially surrounding the annular member. The conduit 5 has at least one port 5e which supplies motive fluid to the coolant passages through at least one passage 5b, 5c, Fig. 5, forced between the conduit 5 and annular member 12 upon a sudden reduction of the temperature of the working fluid. This allows cooling fluid to flow round the member 12 and cause it to expand and contract at the same rate as the flange 6 and this prevents excessive bending stresses on the bolts 11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US732532A US2956775A (en) | 1958-05-02 | 1958-05-02 | Bolted nozzlebox for high pressure steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB911673A true GB911673A (en) | 1962-11-28 |
Family
ID=24943891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13157/59A Expired GB911673A (en) | 1958-05-02 | 1959-04-17 | Improvements in bolted nozzlebox for high pressure steam turbines |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2956775A (en) |
| CH (1) | CH371464A (en) |
| DE (1) | DE1077229B (en) |
| GB (1) | GB911673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238804A (en) * | 1985-08-14 | 1987-02-19 | ウエスチングハウス エレクトリック コ−ポレ−ション | Assembly of nozzle chamber of steam turbine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674722B2 (en) * | 1984-10-15 | 1994-09-21 | 株式会社日立製作所 | Structure of steam inlet of steam turbine |
| DE3905900A1 (en) * | 1989-02-25 | 1990-08-30 | Gutehoffnungshuette Man | FRESH STEAM PERFORMANCE FOR STEAM TURBINES IN DOUBLE HOUSING DESIGN |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE926966C (en) * | 1950-02-24 | 1955-04-28 | Siemens Ag | Nozzle body of high temperature turbines |
| US2649315A (en) * | 1951-03-10 | 1953-08-18 | Gen Electric | High-temperature expansion joint |
-
1958
- 1958-05-02 US US732532A patent/US2956775A/en not_active Expired - Lifetime
-
1959
- 1959-04-17 GB GB13157/59A patent/GB911673A/en not_active Expired
- 1959-04-21 DE DEG26890A patent/DE1077229B/en active Pending
- 1959-04-30 CH CH7276359A patent/CH371464A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238804A (en) * | 1985-08-14 | 1987-02-19 | ウエスチングハウス エレクトリック コ−ポレ−ション | Assembly of nozzle chamber of steam turbine |
| JPH0421044B2 (en) * | 1985-08-14 | 1992-04-08 | Westinghouse Electric Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1077229B (en) | 1960-03-10 |
| CH371464A (en) | 1963-08-31 |
| US2956775A (en) | 1960-10-18 |
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