JPS56132405A - Nozzle box - Google Patents
Nozzle boxInfo
- Publication number
- JPS56132405A JPS56132405A JP3552080A JP3552080A JPS56132405A JP S56132405 A JPS56132405 A JP S56132405A JP 3552080 A JP3552080 A JP 3552080A JP 3552080 A JP3552080 A JP 3552080A JP S56132405 A JPS56132405 A JP S56132405A
- Authority
- JP
- Japan
- Prior art keywords
- clamping bolt
- nozzle box
- split
- steam turbine
- creep deformation
- 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.)
- Granted
Links
Abstract
PURPOSE: To protect a clamping bolt from creep deformation and damage due to thermal stress, by reducing a restraining force which acts to the clamping bolt which clamps the two-split portions of a nozzle box used in the speed governing stage of a steam turbine or the like.
CONSTITUTION: An upper and a lower two-split nozzle box bodys 4, 5 are provided between a rotor 1 and an upper and a lower two-split casing 2, 3. A flat interposed member 9 and a lower horizontal mounting section 5a are secured on the carrying part 8 of an upper horizontal mounting section 4a by a clamping bolt 10 so that a gap 11. As a result, even if the mounting sections 4a, 5a and member 9 are lifted up by the high pressure and temperature steam of a steam turbine and come into contact with the bottom of the upper casing 2, the clamping bolt 10 is not crushed. The clamping bolt 10 is thus protected from creep deformation and damage.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3552080A JPS56132405A (en) | 1980-03-19 | 1980-03-19 | Nozzle box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3552080A JPS56132405A (en) | 1980-03-19 | 1980-03-19 | Nozzle box |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56132405A true JPS56132405A (en) | 1981-10-16 |
JPS6257802B2 JPS6257802B2 (en) | 1987-12-02 |
Family
ID=12444019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3552080A Granted JPS56132405A (en) | 1980-03-19 | 1980-03-19 | Nozzle box |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56132405A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4697983A (en) * | 1984-10-15 | 1987-10-06 | Hitachi, Ltd. | Steam introducing part structure of steam turbine |
-
1980
- 1980-03-19 JP JP3552080A patent/JPS56132405A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4697983A (en) * | 1984-10-15 | 1987-10-06 | Hitachi, Ltd. | Steam introducing part structure of steam turbine |
Also Published As
Publication number | Publication date |
---|---|
JPS6257802B2 (en) | 1987-12-02 |
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