JPS5444110A - Double flow type nozzle box - Google Patents
Double flow type nozzle boxInfo
- Publication number
- JPS5444110A JPS5444110A JP10985377A JP10985377A JPS5444110A JP S5444110 A JPS5444110 A JP S5444110A JP 10985377 A JP10985377 A JP 10985377A JP 10985377 A JP10985377 A JP 10985377A JP S5444110 A JPS5444110 A JP S5444110A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle box
- flow
- steam flow
- steam
- outside
- 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
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To decrease the themal stress of a nozzle box by installing a heat shielding plate which covers the outside of the nozzle box, on the outside wall of the nozzle box, keeping a gap between the outside wall surface.
CONSTITUTION: The nozzle inlet steam flow 2 flows into rotor blades 11a and 11b through nozzles 3a and 3b in the opposite directions, and the rotor blade steam flow 5b having flowed down on the rotor blade 11b in one step forms inverted flow, and joins with leaked steam flow 8b to form steam chamber outside wall steam flow 9b, and said flow is changed to the steam in low temperature in high flow speed and flows along the nozzle box outside walls 4a and 4b to the low pressure side. As a heat shielding plate 16 is arranged on the nozzle box outside walls 4a and 4b, the nozzle box 4 is heat-insulated without being cooled by steam flow 9b. Leaked steam flow 8a flows into a desk pace 20 to form steam chamber outside wall steam flow 9a but the nozzle box 4 is protected by the heat-shielding plate 16. Thus, the temperature difference between the inside and outside walls of the nozzle box 4 can be reduced, and also the thermal stress can be reduced
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10985377A JPS5444110A (en) | 1977-09-14 | 1977-09-14 | Double flow type nozzle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10985377A JPS5444110A (en) | 1977-09-14 | 1977-09-14 | Double flow type nozzle box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5444110A true JPS5444110A (en) | 1979-04-07 |
| JPS5517205B2 JPS5517205B2 (en) | 1980-05-09 |
Family
ID=14520839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10985377A Granted JPS5444110A (en) | 1977-09-14 | 1977-09-14 | Double flow type nozzle box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5444110A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7331754B2 (en) * | 2005-10-18 | 2008-02-19 | General Electric Company | Optimized nozzle box steam path |
| JP2017115713A (en) * | 2015-12-24 | 2017-06-29 | 三菱日立パワーシステムズ株式会社 | Steam turbine cooling device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60254446A (en) * | 1984-05-31 | 1985-12-16 | Akai Electric Co Ltd | Slant pole of magnetic recording and reproducing device |
-
1977
- 1977-09-14 JP JP10985377A patent/JPS5444110A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7331754B2 (en) * | 2005-10-18 | 2008-02-19 | General Electric Company | Optimized nozzle box steam path |
| JP2017115713A (en) * | 2015-12-24 | 2017-06-29 | 三菱日立パワーシステムズ株式会社 | Steam turbine cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5517205B2 (en) | 1980-05-09 |
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