JPS5672205A - Spray unit for cooling exhaust of steam turbine - Google Patents
Spray unit for cooling exhaust of steam turbineInfo
- Publication number
- JPS5672205A JPS5672205A JP14647179A JP14647179A JPS5672205A JP S5672205 A JPS5672205 A JP S5672205A JP 14647179 A JP14647179 A JP 14647179A JP 14647179 A JP14647179 A JP 14647179A JP S5672205 A JPS5672205 A JP S5672205A
- Authority
- JP
- Japan
- Prior art keywords
- moving blade
- last stage
- exhaust
- spray water
- steam
- 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.)
- Pending
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To prevent a last stage moving blade from being erodded by spray water by a method wherein a spray nozzle is provided at a stationary part on the root side of the moving vane at a steam outlet of the last stage moving blade and the spray water is jetted turning to exhaust stream.
CONSTITUTION: The spray nozzle 11 through which the spray water 12 for cooling is jetted is provided to the exhaust stream at a stationary part on the root side of the moving blade on the steam outlet side of the last stage moving blade 6a of a low pressure turbine. When a circulating stream 2b is produced at a low load, the spray water 12 made foggy will cool the exhaust steam 2a, cutting across the circulating stream 2b. Even if part of the sprayed water lashes against the inner wall of a casing 5a and springs back and produces spray water 12b, these water drops are flown away to a steam condenser along with the exhaust steam 2a. Thus, the temperature rise in a low pressure exhaust chamber 5a at a low load can be controlled and the last stage moving blade can be prevented from being erodded.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14647179A JPS5672205A (en) | 1979-11-14 | 1979-11-14 | Spray unit for cooling exhaust of steam turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14647179A JPS5672205A (en) | 1979-11-14 | 1979-11-14 | Spray unit for cooling exhaust of steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5672205A true JPS5672205A (en) | 1981-06-16 |
Family
ID=15408380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14647179A Pending JPS5672205A (en) | 1979-11-14 | 1979-11-14 | Spray unit for cooling exhaust of steam turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5672205A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3000969A1 (en) * | 2014-09-26 | 2016-03-30 | Kabushiki Kaisha Toshiba | Steam turbine |
-
1979
- 1979-11-14 JP JP14647179A patent/JPS5672205A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3000969A1 (en) * | 2014-09-26 | 2016-03-30 | Kabushiki Kaisha Toshiba | Steam turbine |
US10301965B2 (en) | 2014-09-26 | 2019-05-28 | Kabushiki Kaisha Toshiba | Steam turbine |
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